Merge commit 'v2.6.28-rc2' into x86/pci-ioapic-boot-irq-quirks

167 files changed, 16173 insertions, 461 deletions

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index eb530b4128b..70b7645ce74 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -74,9 +74,12 @@ config S390
 	select HAVE_KPROBES
 	select HAVE_KRETPROBES
 	select HAVE_KVM if 64BIT
+	select HAVE_ARCH_TRACEHOOK
 
 source "init/Kconfig"
 
+source "kernel/Kconfig.freezer"
+
 menu "Base setup"
 
 comment "Processor type and features"
@@ -317,6 +320,9 @@ config ARCH_ENABLE_MEMORY_HOTPLUG
 	def_bool y
 	depends on SPARSEMEM
 
+config ARCH_ENABLE_MEMORY_HOTREMOVE
+	def_bool y
+
 source "mm/Kconfig"
 
 comment "I/O subsystem configuration"
@@ -561,12 +567,16 @@ config ZFCPDUMP
 	  Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this.
 
 config S390_GUEST
-bool "s390 guest support (EXPERIMENTAL)"
+bool "s390 guest support for KVM (EXPERIMENTAL)"
 	depends on 64BIT && EXPERIMENTAL
 	select VIRTIO
 	select VIRTIO_RING
+	select VIRTIO_CONSOLE
 	help
-	  Select this option if you want to run the kernel under s390 linux
+	  Select this option if you want to run the kernel as a guest under
+	  the KVM hypervisor. This will add detection for KVM as well  as a
+	  virtio transport. If KVM is detected, the virtio console will be
+	  the default console.
 endmenu
 
 source "net/Kconfig"
diff --git a/arch/s390/defconfig b/arch/s390/defconfig
index c5cdb975d59..9b0bc2c9fba 100644
--- a/arch/s390/defconfig
+++ b/arch/s390/defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.26-rc4
-# Fri May 30 09:49:33 2008
+# Linux kernel version: 2.6.27-rc4
+# Thu Aug 21 19:43:29 2008
 #
 CONFIG_SCHED_MC=y
 CONFIG_MMU=y
@@ -68,7 +68,6 @@ CONFIG_INITRAMFS_SOURCE=""
 CONFIG_SYSCTL=y
 # CONFIG_EMBEDDED is not set
 CONFIG_SYSCTL_SYSCALL=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
 CONFIG_KALLSYMS=y
 # CONFIG_KALLSYMS_ALL is not set
 # CONFIG_KALLSYMS_EXTRA_PASS is not set
@@ -93,11 +92,17 @@ CONFIG_SLAB=y
 # CONFIG_MARKERS is not set
 CONFIG_HAVE_OPROFILE=y
 CONFIG_KPROBES=y
+# CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS is not set
 CONFIG_KRETPROBES=y
+# CONFIG_HAVE_IOREMAP_PROT is not set
 CONFIG_HAVE_KPROBES=y
 CONFIG_HAVE_KRETPROBES=y
+# CONFIG_HAVE_ARCH_TRACEHOOK is not set
 # CONFIG_HAVE_DMA_ATTRS is not set
+# CONFIG_USE_GENERIC_SMP_HELPERS is not set
+# CONFIG_HAVE_CLK is not set
 CONFIG_PROC_PAGE_MONITOR=y
+# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
 CONFIG_SLABINFO=y
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -113,6 +118,7 @@ CONFIG_STOP_MACHINE=y
 CONFIG_BLOCK=y
 # CONFIG_BLK_DEV_IO_TRACE is not set
 CONFIG_BLK_DEV_BSG=y
+# CONFIG_BLK_DEV_INTEGRITY is not set
 CONFIG_BLOCK_COMPAT=y
 
 #
@@ -175,6 +181,8 @@ CONFIG_PREEMPT=y
 CONFIG_ARCH_SPARSEMEM_ENABLE=y
 CONFIG_ARCH_SPARSEMEM_DEFAULT=y
 CONFIG_ARCH_SELECT_MEMORY_MODEL=y
+CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
+CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
 CONFIG_SELECT_MEMORY_MODEL=y
 # CONFIG_FLATMEM_MANUAL is not set
 # CONFIG_DISCONTIGMEM_MANUAL is not set
@@ -185,8 +193,12 @@ CONFIG_HAVE_MEMORY_PRESENT=y
 CONFIG_SPARSEMEM_EXTREME=y
 CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
 CONFIG_SPARSEMEM_VMEMMAP=y
+CONFIG_MEMORY_HOTPLUG=y
+CONFIG_MEMORY_HOTPLUG_SPARSE=y
+CONFIG_MEMORY_HOTREMOVE=y
 CONFIG_PAGEFLAGS_EXTENDED=y
 CONFIG_SPLIT_PTLOCK_CPUS=4
+CONFIG_MIGRATION=y
 CONFIG_RESOURCES_64BIT=y
 CONFIG_ZONE_DMA_FLAG=1
 CONFIG_BOUNCE=y
@@ -198,6 +210,7 @@ CONFIG_VIRT_TO_BUS=y
 CONFIG_MACHCHK_WARNING=y
 CONFIG_QDIO=y
 # CONFIG_QDIO_DEBUG is not set
+CONFIG_CHSC_SCH=m
 
 #
 # Misc
@@ -206,6 +219,7 @@ CONFIG_IPL=y
 # CONFIG_IPL_TAPE is not set
 CONFIG_IPL_VM=y
 CONFIG_BINFMT_ELF=y
+CONFIG_COMPAT_BINFMT_ELF=y
 CONFIG_BINFMT_MISC=m
 CONFIG_FORCE_MAX_ZONEORDER=9
 # CONFIG_PROCESS_DEBUG is not set
@@ -226,10 +240,6 @@ CONFIG_S390_HYPFS_FS=y
 CONFIG_KEXEC=y
 # CONFIG_ZFCPDUMP is not set
 CONFIG_S390_GUEST=y
-
-#
-# Networking
-#
 CONFIG_NET=y
 
 #
@@ -364,7 +374,6 @@ CONFIG_NET_SCH_CBQ=m
 # CONFIG_NET_SCH_HTB is not set
 # CONFIG_NET_SCH_HFSC is not set
 CONFIG_NET_SCH_PRIO=m
-CONFIG_NET_SCH_RR=m
 CONFIG_NET_SCH_RED=m
 CONFIG_NET_SCH_SFQ=m
 CONFIG_NET_SCH_TEQL=m
@@ -430,7 +439,9 @@ CONFIG_CCW=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_STANDALONE=y
 CONFIG_PREVENT_FIRMWARE_BUILD=y
-# CONFIG_FW_LOADER is not set
+CONFIG_FW_LOADER=y
+# CONFIG_FIRMWARE_IN_KERNEL is not set
+CONFIG_EXTRA_FIRMWARE=""
 # CONFIG_DEBUG_DRIVER is not set
 # CONFIG_DEBUG_DEVRES is not set
 CONFIG_SYS_HYPERVISOR=y
@@ -507,6 +518,11 @@ CONFIG_SCSI_LOWLEVEL=y
 # CONFIG_ISCSI_TCP is not set
 # CONFIG_SCSI_DEBUG is not set
 CONFIG_ZFCP=y
+CONFIG_SCSI_DH=m
+CONFIG_SCSI_DH_RDAC=m
+CONFIG_SCSI_DH_HP_SW=m
+CONFIG_SCSI_DH_EMC=m
+CONFIG_SCSI_DH_ALUA=m
 CONFIG_MD=y
 CONFIG_BLK_DEV_MD=y
 CONFIG_MD_LINEAR=m
@@ -522,14 +538,10 @@ CONFIG_DM_CRYPT=y
 CONFIG_DM_SNAPSHOT=y
 CONFIG_DM_MIRROR=y
 CONFIG_DM_ZERO=y
-CONFIG_DM_MULTIPATH=y
-# CONFIG_DM_MULTIPATH_EMC is not set
-# CONFIG_DM_MULTIPATH_RDAC is not set
-# CONFIG_DM_MULTIPATH_HP is not set
+CONFIG_DM_MULTIPATH=m
 # CONFIG_DM_DELAY is not set
 # CONFIG_DM_UEVENT is not set
 CONFIG_NETDEVICES=y
-# CONFIG_NETDEVICES_MULTIQUEUE is not set
 # CONFIG_IFB is not set
 CONFIG_DUMMY=m
 CONFIG_BONDING=m
@@ -544,7 +556,6 @@ CONFIG_NET_ETHERNET=y
 # CONFIG_IBM_NEW_EMAC_TAH is not set
 # CONFIG_IBM_NEW_EMAC_EMAC4 is not set
 CONFIG_NETDEV_1000=y
-# CONFIG_E1000E_ENABLED is not set
 CONFIG_NETDEV_10000=y
 # CONFIG_TR is not set
 # CONFIG_WAN is not set
@@ -576,7 +587,10 @@ CONFIG_DEVKMEM=y
 CONFIG_UNIX98_PTYS=y
 CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
+CONFIG_HVC_DRIVER=y
+CONFIG_VIRTIO_CONSOLE=y
 CONFIG_HW_RANDOM=m
+CONFIG_HW_RANDOM_VIRTIO=m
 # CONFIG_R3964 is not set
 CONFIG_RAW_DRIVER=m
 CONFIG_MAX_RAW_DEVS=256
@@ -616,6 +630,7 @@ CONFIG_MONWRITER=m
 CONFIG_S390_VMUR=m
 # CONFIG_POWER_SUPPLY is not set
 # CONFIG_THERMAL is not set
+# CONFIG_THERMAL_HWMON is not set
 # CONFIG_WATCHDOG is not set
 
 #
@@ -693,6 +708,7 @@ CONFIG_CONFIGFS_FS=m
 # CONFIG_CRAMFS is not set
 # CONFIG_VXFS_FS is not set
 # CONFIG_MINIX_FS is not set
+# CONFIG_OMFS_FS is not set
 # CONFIG_HPFS_FS is not set
 # CONFIG_QNX4FS_FS is not set
 # CONFIG_ROMFS_FS is not set
@@ -712,7 +728,6 @@ CONFIG_LOCKD_V4=y
 CONFIG_EXPORTFS=y
 CONFIG_NFS_COMMON=y
 CONFIG_SUNRPC=y
-# CONFIG_SUNRPC_BIND34 is not set
 # CONFIG_RPCSEC_GSS_KRB5 is not set
 # CONFIG_RPCSEC_GSS_SPKM3 is not set
 # CONFIG_SMB_FS is not set
@@ -780,6 +795,7 @@ CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_DEBUG_INFO is not set
 # CONFIG_DEBUG_VM is not set
 # CONFIG_DEBUG_WRITECOUNT is not set
+CONFIG_DEBUG_MEMORY_INIT=y
 # CONFIG_DEBUG_LIST is not set
 # CONFIG_DEBUG_SG is not set
 # CONFIG_FRAME_POINTER is not set
@@ -789,6 +805,7 @@ CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_LKDTM is not set
 # CONFIG_FAULT_INJECTION is not set
 # CONFIG_LATENCYTOP is not set
+CONFIG_SYSCTL_SYSCALL_CHECK=y
 CONFIG_SAMPLES=y
 # CONFIG_SAMPLE_KOBJECT is not set
 # CONFIG_SAMPLE_KPROBES is not set
@@ -847,6 +864,10 @@ CONFIG_CRYPTO_HMAC=m
 # CONFIG_CRYPTO_MD4 is not set
 CONFIG_CRYPTO_MD5=m
 # CONFIG_CRYPTO_MICHAEL_MIC is not set
+CONFIG_CRYPTO_RMD128=m
+CONFIG_CRYPTO_RMD160=m
+CONFIG_CRYPTO_RMD256=m
+CONFIG_CRYPTO_RMD320=m
 CONFIG_CRYPTO_SHA1=m
 # CONFIG_CRYPTO_SHA256 is not set
 # CONFIG_CRYPTO_SHA512 is not set
@@ -895,6 +916,7 @@ CONFIG_BITREVERSE=m
 # CONFIG_GENERIC_FIND_NEXT_BIT is not set
 # CONFIG_CRC_CCITT is not set
 # CONFIG_CRC16 is not set
+CONFIG_CRC_T10DIF=y
 # CONFIG_CRC_ITU_T is not set
 CONFIG_CRC32=m
 CONFIG_CRC7=m
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index 7383781f3e6..36313801cd5 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -219,7 +219,7 @@ static int hypfs_release(struct inode *inode, struct file *filp)
 
 enum { opt_uid, opt_gid, opt_err };
 
-static match_table_t hypfs_tokens = {
+static const match_table_t hypfs_tokens = {
 	{opt_uid, "uid=%u"},
 	{opt_gid, "gid=%u"},
 	{opt_err, NULL}
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
new file mode 100644
index 00000000000..63a23415fba
--- /dev/null
+++ b/arch/s390/include/asm/Kbuild
@@ -0,0 +1,15 @@
+include include/asm-generic/Kbuild.asm
+
+header-y += dasd.h
+header-y += monwriter.h
+header-y += qeth.h
+header-y += tape390.h
+header-y += ucontext.h
+header-y += vtoc.h
+header-y += zcrypt.h
+header-y += chsc.h
+
+unifdef-y += cmb.h
+unifdef-y += debug.h
+unifdef-y += chpid.h
+unifdef-y += schid.h
diff --git a/arch/s390/include/asm/airq.h b/arch/s390/include/asm/airq.h
new file mode 100644
index 00000000000..1ac80d6b058
--- /dev/null
+++ b/arch/s390/include/asm/airq.h
@@ -0,0 +1,19 @@
+/*
+ *  include/asm-s390/airq.h
+ *
+ *    Copyright IBM Corp. 2002,2007
+ *    Author(s): Ingo Adlung <adlung@de.ibm.com>
+ *		 Cornelia Huck <cornelia.huck@de.ibm.com>
+ *		 Arnd Bergmann <arndb@de.ibm.com>
+ *		 Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
+ */
+
+#ifndef _ASM_S390_AIRQ_H
+#define _ASM_S390_AIRQ_H
+
+typedef void (*adapter_int_handler_t)(void *, void *);
+
+void *s390_register_adapter_interrupt(adapter_int_handler_t, void *, u8);
+void s390_unregister_adapter_interrupt(void *, u8);
+
+#endif /* _ASM_S390_AIRQ_H */
diff --git a/arch/s390/include/asm/appldata.h b/arch/s390/include/asm/appldata.h
new file mode 100644
index 00000000000..79283dac828
--- /dev/null
+++ b/arch/s390/include/asm/appldata.h
@@ -0,0 +1,90 @@
+/*
+ * include/asm-s390/appldata.h
+ *
+ * Copyright (C) IBM Corp. 2006
+ *
+ * Author(s): Melissa Howland <melissah@us.ibm.com>
+ */
+
+#ifndef _ASM_S390_APPLDATA_H
+#define _ASM_S390_APPLDATA_H
+
+#include <asm/io.h>
+
+#ifndef CONFIG_64BIT
+
+#define APPLDATA_START_INTERVAL_REC	0x00	/* Function codes for */
+#define APPLDATA_STOP_REC		0x01	/* DIAG 0xDC	      */
+#define APPLDATA_GEN_EVENT_REC		0x02
+#define APPLDATA_START_CONFIG_REC	0x03
+
+/*
+ * Parameter list for DIAGNOSE X'DC'
+ */
+struct appldata_parameter_list {
+	u16 diag;		/* The DIAGNOSE code X'00DC'	      */
+	u8  function;		/* The function code for the DIAGNOSE */
+	u8  parlist_length;	/* Length of the parameter list       */
+	u32 product_id_addr;	/* Address of the 16-byte product ID  */
+	u16 reserved;
+	u16 buffer_length;	/* Length of the application data buffer  */
+	u32 buffer_addr;	/* Address of the application data buffer */
+} __attribute__ ((packed));
+
+#else /* CONFIG_64BIT */
+
+#define APPLDATA_START_INTERVAL_REC	0x80
+#define APPLDATA_STOP_REC		0x81
+#define APPLDATA_GEN_EVENT_REC		0x82
+#define APPLDATA_START_CONFIG_REC	0x83
+
+/*
+ * Parameter list for DIAGNOSE X'DC'
+ */
+struct appldata_parameter_list {
+	u16 diag;
+	u8  function;
+	u8  parlist_length;
+	u32 unused01;
+	u16 reserved;
+	u16 buffer_length;
+	u32 unused02;
+	u64 product_id_addr;
+	u64 buffer_addr;
+} __attribute__ ((packed));
+
+#endif /* CONFIG_64BIT */
+
+struct appldata_product_id {
+	char prod_nr[7];	/* product number */
+	u16  prod_fn;		/* product function */
+	u8   record_nr; 	/* record number */
+	u16  version_nr;	/* version */
+	u16  release_nr;	/* release */
+	u16  mod_lvl;		/* modification level */
+} __attribute__ ((packed));
+
+static inline int appldata_asm(struct appldata_product_id *id,
+			       unsigned short fn, void *buffer,
+			       unsigned short length)
+{
+	struct appldata_parameter_list parm_list;
+	int ry;
+
+	if (!MACHINE_IS_VM)
+		return -ENOSYS;
+	parm_list.diag = 0xdc;
+	parm_list.function = fn;
+	parm_list.parlist_length = sizeof(parm_list);
+	parm_list.buffer_length = length;
+	parm_list.product_id_addr = (unsigned long) id;
+	parm_list.buffer_addr = virt_to_phys(buffer);
+	asm volatile(
+		"	diag	%1,%0,0xdc"
+		: "=d" (ry)
+		: "d" (&parm_list), "m" (parm_list), "m" (*id)
+		: "cc");
+	return ry;
+}
+
+#endif /* _ASM_S390_APPLDATA_H */
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
new file mode 100644
index 00000000000..2d184655bc5
--- /dev/null
+++ b/arch/s390/include/asm/atomic.h
@@ -0,0 +1,285 @@
+#ifndef __ARCH_S390_ATOMIC__
+#define __ARCH_S390_ATOMIC__
+
+#include <linux/compiler.h>
+
+/*
+ *  include/asm-s390/atomic.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999-2005 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
+ *               Denis Joseph Barrow,
+ *		 Arnd Bergmann (arndb@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/bitops.h"
+ *    Copyright (C) 1992, Linus Torvalds
+ *
+ */
+
+/*
+ * Atomic operations that C can't guarantee us.  Useful for
+ * resource counting etc..
+ * S390 uses 'Compare And Swap' for atomicity in SMP enviroment
+ */
+
+typedef struct {
+	int counter;
+} __attribute__ ((aligned (4))) atomic_t;
+#define ATOMIC_INIT(i)  { (i) }
+
+#ifdef __KERNEL__
+
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+
+#define __CS_LOOP(ptr, op_val, op_string) ({				\
+	typeof(ptr->counter) old_val, new_val;				\
+	asm volatile(							\
+		"	l	%0,%2\n"				\
+		"0:	lr	%1,%0\n"				\
+		op_string "	%1,%3\n"				\
+		"	cs	%0,%1,%2\n"				\
+		"	jl	0b"					\
+		: "=&d" (old_val), "=&d" (new_val),			\
+		  "=Q" (((atomic_t *)(ptr))->counter)			\
+		: "d" (op_val),	 "Q" (((atomic_t *)(ptr))->counter)	\
+		: "cc", "memory");					\
+	new_val;							\
+})
+
+#else /* __GNUC__ */
+
+#define __CS_LOOP(ptr, op_val, op_string) ({				\
+	typeof(ptr->counter) old_val, new_val;				\
+	asm volatile(							\
+		"	l	%0,0(%3)\n"				\
+		"0:	lr	%1,%0\n"				\
+		op_string "	%1,%4\n"				\
+		"	cs	%0,%1,0(%3)\n"				\
+		"	jl	0b"					\
+		: "=&d" (old_val), "=&d" (new_val),			\
+		  "=m" (((atomic_t *)(ptr))->counter)			\
+		: "a" (ptr), "d" (op_val),				\
+		  "m" (((atomic_t *)(ptr))->counter)			\
+		: "cc", "memory");					\
+	new_val;							\
+})
+
+#endif /* __GNUC__ */
+
+static inline int atomic_read(const atomic_t *v)
+{
+	barrier();
+	return v->counter;
+}
+
+static inline void atomic_set(atomic_t *v, int i)
+{
+	v->counter = i;
+	barrier();
+}
+
+static __inline__ int atomic_add_return(int i, atomic_t * v)
+{
+	return __CS_LOOP(v, i, "ar");
+}
+#define atomic_add(_i, _v)		atomic_add_return(_i, _v)
+#define atomic_add_negative(_i, _v)	(atomic_add_return(_i, _v) < 0)
+#define atomic_inc(_v)			atomic_add_return(1, _v)
+#define atomic_inc_return(_v)		atomic_add_return(1, _v)
+#define atomic_inc_and_test(_v)		(atomic_add_return(1, _v) == 0)
+
+static __inline__ int atomic_sub_return(int i, atomic_t * v)
+{
+	return __CS_LOOP(v, i, "sr");
+}
+#define atomic_sub(_i, _v)		atomic_sub_return(_i, _v)
+#define atomic_sub_and_test(_i, _v)	(atomic_sub_return(_i, _v) == 0)
+#define atomic_dec(_v)			atomic_sub_return(1, _v)
+#define atomic_dec_return(_v)		atomic_sub_return(1, _v)
+#define atomic_dec_and_test(_v)		(atomic_sub_return(1, _v) == 0)
+
+static __inline__ void atomic_clear_mask(unsigned long mask, atomic_t * v)
+{
+	       __CS_LOOP(v, ~mask, "nr");
+}
+
+static __inline__ void atomic_set_mask(unsigned long mask, atomic_t * v)
+{
+	       __CS_LOOP(v, mask, "or");
+}
+
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+
+static __inline__ int atomic_cmpxchg(atomic_t *v, int old, int new)
+{
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+	asm volatile(
+		"	cs	%0,%2,%1"
+		: "+d" (old), "=Q" (v->counter)
+		: "d" (new), "Q" (v->counter)
+		: "cc", "memory");
+#else /* __GNUC__ */
+	asm volatile(
+		"	cs	%0,%3,0(%2)"
+		: "+d" (old), "=m" (v->counter)
+		: "a" (v), "d" (new), "m" (v->counter)
+		: "cc", "memory");
+#endif /* __GNUC__ */
+	return old;
+}
+
+static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
+{
+	int c, old;
+	c = atomic_read(v);
+	for (;;) {
+		if (unlikely(c == u))
+			break;
+		old = atomic_cmpxchg(v, c, c + a);
+		if (likely(old == c))
+			break;
+		c = old;
+	}
+	return c != u;
+}
+
+#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+
+#undef __CS_LOOP
+
+#ifdef __s390x__
+typedef struct {
+	long long counter;
+} __attribute__ ((aligned (8))) atomic64_t;
+#define ATOMIC64_INIT(i)  { (i) }
+
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+
+#define __CSG_LOOP(ptr, op_val, op_string) ({				\
+	typeof(ptr->counter) old_val, new_val;				\
+	asm volatile(							\
+		"	lg	%0,%2\n"				\
+		"0:	lgr	%1,%0\n"				\
+		op_string "	%1,%3\n"				\
+		"	csg	%0,%1,%2\n"				\
+		"	jl	0b"					\
+		: "=&d" (old_val), "=&d" (new_val),			\
+		  "=Q" (((atomic_t *)(ptr))->counter)			\
+		: "d" (op_val),	"Q" (((atomic_t *)(ptr))->counter)	\
+		: "cc", "memory" );					\
+	new_val;							\
+})
+
+#else /* __GNUC__ */
+
+#define __CSG_LOOP(ptr, op_val, op_string) ({				\
+	typeof(ptr->counter) old_val, new_val;				\
+	asm volatile(							\
+		"	lg	%0,0(%3)\n"				\
+		"0:	lgr	%1,%0\n"				\
+		op_string "	%1,%4\n"				\
+		"	csg	%0,%1,0(%3)\n"				\
+		"	jl	0b"					\
+		: "=&d" (old_val), "=&d" (new_val),			\
+		  "=m" (((atomic_t *)(ptr))->counter)			\
+		: "a" (ptr), "d" (op_val),				\
+		  "m" (((atomic_t *)(ptr))->counter)			\
+		: "cc", "memory" );					\
+	new_val;							\
+})
+
+#endif /* __GNUC__ */
+
+static inline long long atomic64_read(const atomic64_t *v)
+{
+	barrier();
+	return v->counter;
+}
+
+static inline void atomic64_set(atomic64_t *v, long long i)
+{
+	v->counter = i;
+	barrier();
+}
+
+static __inline__ long long atomic64_add_return(long long i, atomic64_t * v)
+{
+	return __CSG_LOOP(v, i, "agr");
+}
+#define atomic64_add(_i, _v)		atomic64_add_return(_i, _v)
+#define atomic64_add_negative(_i, _v)	(atomic64_add_return(_i, _v) < 0)
+#define atomic64_inc(_v)		atomic64_add_return(1, _v)
+#define atomic64_inc_return(_v)		atomic64_add_return(1, _v)
+#define atomic64_inc_and_test(_v)	(atomic64_add_return(1, _v) == 0)
+
+static __inline__ long long atomic64_sub_return(long long i, atomic64_t * v)
+{
+	return __CSG_LOOP(v, i, "sgr");
+}
+#define atomic64_sub(_i, _v)		atomic64_sub_return(_i, _v)
+#define atomic64_sub_and_test(_i, _v)	(atomic64_sub_return(_i, _v) == 0)
+#define atomic64_dec(_v)		atomic64_sub_return(1, _v)
+#define atomic64_dec_return(_v)		atomic64_sub_return(1, _v)
+#define atomic64_dec_and_test(_v)	(atomic64_sub_return(1, _v) == 0)
+
+static __inline__ void atomic64_clear_mask(unsigned long mask, atomic64_t * v)
+{
+	       __CSG_LOOP(v, ~mask, "ngr");
+}
+
+static __inline__ void atomic64_set_mask(unsigned long mask, atomic64_t * v)
+{
+	       __CSG_LOOP(v, mask, "ogr");
+}
+
+#define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
+
+static __inline__ long long atomic64_cmpxchg(atomic64_t *v,
+					     long long old, long long new)
+{
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+	asm volatile(
+		"	csg	%0,%2,%1"
+		: "+d" (old), "=Q" (v->counter)
+		: "d" (new), "Q" (v->counter)
+		: "cc", "memory");
+#else /* __GNUC__ */
+	asm volatile(
+		"	csg	%0,%3,0(%2)"
+		: "+d" (old), "=m" (v->counter)
+		: "a" (v), "d" (new), "m" (v->counter)
+		: "cc", "memory");
+#endif /* __GNUC__ */
+	return old;
+}
+
+static __inline__ int atomic64_add_unless(atomic64_t *v,
+					  long long a, long long u)
+{
+	long long c, old;
+	c = atomic64_read(v);
+	for (;;) {
+		if (unlikely(c == u))
+			break;
+		old = atomic64_cmpxchg(v, c, c + a);
+		if (likely(old == c))
+			break;
+		c = old;
+	}
+	return c != u;
+}
+
+#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+
+#undef __CSG_LOOP
+#endif
+
+#define smp_mb__before_atomic_dec()	smp_mb()
+#define smp_mb__after_atomic_dec()	smp_mb()
+#define smp_mb__before_atomic_inc()	smp_mb()
+#define smp_mb__after_atomic_inc()	smp_mb()
+
+#include <asm-generic/atomic.h>
+#endif /* __KERNEL__ */
+#endif /* __ARCH_S390_ATOMIC__  */
diff --git a/arch/s390/include/asm/auxvec.h b/arch/s390/include/asm/auxvec.h
new file mode 100644
index 00000000000..0d340720fd9
--- /dev/null
+++ b/arch/s390/include/asm/auxvec.h
@@ -0,0 +1,4 @@
+#ifndef __ASMS390_AUXVEC_H
+#define __ASMS390_AUXVEC_H
+
+#endif
diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
new file mode 100644
index 00000000000..8e9243ae0c1
--- /dev/null
+++ b/arch/s390/include/asm/bitops.h
@@ -0,0 +1,884 @@
+#ifndef _S390_BITOPS_H
+#define _S390_BITOPS_H
+
+/*
+ *  include/asm-s390/bitops.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/bitops.h"
+ *    Copyright (C) 1992, Linus Torvalds
+ *
+ */
+
+#ifdef __KERNEL__
+
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
+#include <linux/compiler.h>
+
+/*
+ * 32 bit bitops format:
+ * bit 0 is the LSB of *addr; bit 31 is the MSB of *addr;
+ * bit 32 is the LSB of *(addr+4). That combined with the
+ * big endian byte order on S390 give the following bit
+ * order in memory:
+ *    1f 1e 1d 1c 1b 1a 19 18 17 16 15 14 13 12 11 10 \
+ *    0f 0e 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00
+ * after that follows the next long with bit numbers
+ *    3f 3e 3d 3c 3b 3a 39 38 37 36 35 34 33 32 31 30
+ *    2f 2e 2d 2c 2b 2a 29 28 27 26 25 24 23 22 21 20
+ * The reason for this bit ordering is the fact that
+ * in the architecture independent code bits operations
+ * of the form "flags |= (1 << bitnr)" are used INTERMIXED
+ * with operation of the form "set_bit(bitnr, flags)".
+ *
+ * 64 bit bitops format:
+ * bit 0 is the LSB of *addr; bit 63 is the MSB of *addr;
+ * bit 64 is the LSB of *(addr+8). That combined with the
+ * big endian byte order on S390 give the following bit
+ * order in memory:
+ *    3f 3e 3d 3c 3b 3a 39 38 37 36 35 34 33 32 31 30
+ *    2f 2e 2d 2c 2b 2a 29 28 27 26 25 24 23 22 21 20
+ *    1f 1e 1d 1c 1b 1a 19 18 17 16 15 14 13 12 11 10
+ *    0f 0e 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00
+ * after that follows the next long with bit numbers
+ *    7f 7e 7d 7c 7b 7a 79 78 77 76 75 74 73 72 71 70
+ *    6f 6e 6d 6c 6b 6a 69 68 67 66 65 64 63 62 61 60
+ *    5f 5e 5d 5c 5b 5a 59 58 57 56 55 54 53 52 51 50
+ *    4f 4e 4d 4c 4b 4a 49 48 47 46 45 44 43 42 41 40
+ * The reason for this bit ordering is the fact that
+ * in the architecture independent code bits operations
+ * of the form "flags |= (1 << bitnr)" are used INTERMIXED
+ * with operation of the form "set_bit(bitnr, flags)".
+ */
+
+/* bitmap tables from arch/S390/kernel/bitmap.S */
+extern const char _oi_bitmap[];
+extern const char _ni_bitmap[];
+extern const char _zb_findmap[];
+extern const char _sb_findmap[];
+
+#ifndef __s390x__
+
+#define __BITOPS_ALIGN		3
+#define __BITOPS_WORDSIZE	32
+#define __BITOPS_OR		"or"
+#define __BITOPS_AND		"nr"
+#define __BITOPS_XOR		"xr"
+
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+
+#define __BITOPS_LOOP(__old, __new, __addr, __val, __op_string)	\
+	asm volatile(						\
+		"	l	%0,%2\n"			\
+		"0:	lr	%1,%0\n"			\
+		__op_string "	%1,%3\n"			\
+		"	cs	%0,%1,%2\n"			\
+		"	jl	0b"				\
+		: "=&d" (__old), "=&d" (__new),			\
+		  "=Q" (*(unsigned long *) __addr)		\
+		: "d" (__val), "Q" (*(unsigned long *) __addr)	\
+		: "cc");
+
+#else /* __GNUC__ */
+
+#define __BITOPS_LOOP(__old, __new, __addr, __val, __op_string)	\
+	asm volatile(						\
+		"	l	%0,0(%4)\n"			\
+		"0:	lr	%1,%0\n"			\
+		__op_string "	%1,%3\n"			\
+		"	cs	%0,%1,0(%4)\n"			\
+		"	jl	0b"				\
+		: "=&d" (__old), "=&d" (__new),			\
+		  "=m" (*(unsigned long *) __addr)		\
+		: "d" (__val), "a" (__addr),			\
+		  "m" (*(unsigned long *) __addr) : "cc");
+
+#endif /* __GNUC__ */
+
+#else /* __s390x__ */
+
+#define __BITOPS_ALIGN		7
+#define __BITOPS_WORDSIZE	64
+#define __BITOPS_OR		"ogr"
+#define __BITOPS_AND		"ngr"
+#define __BITOPS_XOR		"xgr"
+
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+
+#define __BITOPS_LOOP(__old, __new, __addr, __val, __op_string)	\
+	asm volatile(						\
+		"	lg	%0,%2\n"			\
+		"0:	lgr	%1,%0\n"			\
+		__op_string "	%1,%3\n"			\
+		"	csg	%0,%1,%2\n"			\
+		"	jl	0b"				\
+		: "=&d" (__old), "=&d" (__new),			\
+		  "=Q" (*(unsigned long *) __addr)		\
+		: "d" (__val), "Q" (*(unsigned long *) __addr)	\
+		: "cc");
+
+#else /* __GNUC__ */
+
+#define __BITOPS_LOOP(__old, __new, __addr, __val, __op_string)	\
+	asm volatile(						\
+		"	lg	%0,0(%4)\n"			\
+		"0:	lgr	%1,%0\n"			\
+		__op_string "	%1,%3\n"			\
+		"	csg	%0,%1,0(%4)\n"			\
+		"	jl	0b"				\
+		: "=&d" (__old), "=&d" (__new),			\
+		  "=m" (*(unsigned long *) __addr)		\
+		: "d" (__val), "a" (__addr),			\
+		  "m" (*(unsigned long *) __addr) : "cc");
+
+
+#endif /* __GNUC__ */
+
+#endif /* __s390x__ */
+
+#define __BITOPS_WORDS(bits) (((bits)+__BITOPS_WORDSIZE-1)/__BITOPS_WORDSIZE)
+#define __BITOPS_BARRIER() asm volatile("" : : : "memory")
+
+#ifdef CONFIG_SMP
+/*
+ * SMP safe set_bit routine based on compare and swap (CS)
+ */
+static inline void set_bit_cs(unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr, old, new, mask;
+
+	addr = (unsigned long) ptr;
+	/* calculate address for CS */
+	addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3;
+	/* make OR mask */
+	mask = 1UL << (nr & (__BITOPS_WORDSIZE - 1));
+	/* Do the atomic update. */
+	__BITOPS_LOOP(old, new, addr, mask, __BITOPS_OR);
+}
+
+/*
+ * SMP safe clear_bit routine based on compare and swap (CS)
+ */
+static inline void clear_bit_cs(unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr, old, new, mask;
+
+	addr = (unsigned long) ptr;
+	/* calculate address for CS */
+	addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3;
+	/* make AND mask */
+	mask = ~(1UL << (nr & (__BITOPS_WORDSIZE - 1)));
+	/* Do the atomic update. */
+	__BITOPS_LOOP(old, new, addr, mask, __BITOPS_AND);
+}
+
+/*
+ * SMP safe change_bit routine based on compare and swap (CS)
+ */
+static inline void change_bit_cs(unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr, old, new, mask;
+
+	addr = (unsigned long) ptr;
+	/* calculate address for CS */
+	addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3;
+	/* make XOR mask */
+	mask = 1UL << (nr & (__BITOPS_WORDSIZE - 1));
+	/* Do the atomic update. */
+	__BITOPS_LOOP(old, new, addr, mask, __BITOPS_XOR);
+}
+
+/*
+ * SMP safe test_and_set_bit routine based on compare and swap (CS)
+ */
+static inline int
+test_and_set_bit_cs(unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr, old, new, mask;
+
+	addr = (unsigned long) ptr;
+	/* calculate address for CS */
+	addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3;
+	/* make OR/test mask */
+	mask = 1UL << (nr & (__BITOPS_WORDSIZE - 1));
+	/* Do the atomic update. */
+	__BITOPS_LOOP(old, new, addr, mask, __BITOPS_OR);
+	__BITOPS_BARRIER();
+	return (old & mask) != 0;
+}
+
+/*
+ * SMP safe test_and_clear_bit routine based on compare and swap (CS)
+ */
+static inline int
+test_and_clear_bit_cs(unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr, old, new, mask;
+
+	addr = (unsigned long) ptr;
+	/* calculate address for CS */
+	addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3;
+	/* make AND/test mask */
+	mask = ~(1UL << (nr & (__BITOPS_WORDSIZE - 1)));
+	/* Do the atomic update. */
+	__BITOPS_LOOP(old, new, addr, mask, __BITOPS_AND);
+	__BITOPS_BARRIER();
+	return (old ^ new) != 0;
+}
+
+/*
+ * SMP safe test_and_change_bit routine based on compare and swap (CS) 
+ */
+static inline int
+test_and_change_bit_cs(unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr, old, new, mask;
+
+	addr = (unsigned long) ptr;
+	/* calculate address for CS */
+	addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3;
+	/* make XOR/test mask */
+	mask = 1UL << (nr & (__BITOPS_WORDSIZE - 1));
+	/* Do the atomic update. */
+	__BITOPS_LOOP(old, new, addr, mask, __BITOPS_XOR);
+	__BITOPS_BARRIER();
+	return (old & mask) != 0;
+}
+#endif /* CONFIG_SMP */
+
+/*
+ * fast, non-SMP set_bit routine
+ */
+static inline void __set_bit(unsigned long nr, volatile unsigned long *ptr)
+{
+	unsigned long addr;
+
+	addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+	asm volatile(
+		"	oc	0(1,%1),0(%2)"
+		: "=m" (*(char *) addr) : "a" (addr),
+		  "a" (_oi_bitmap + (nr & 7)), "m" (*(char *) addr) : "cc" );
+}
+
+static inline void 
+__constant_set_bit(const unsigned long nr, volatile unsigned long *ptr)
+{
+	unsigned long addr;
+
+	addr = ((unsigned long) ptr) + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+	*(unsigned char *) addr |= 1 << (nr & 7);
+}
+
+#define set_bit_simple(nr,addr) \
+(__builtin_constant_p((nr)) ? \
+ __constant_set_bit((nr),(addr)) : \
+ __set_bit((nr),(addr)) )
+
+/*
+ * fast, non-SMP clear_bit routine
+ */
+static inline void 
+__clear_bit(unsigned long nr, volatile unsigned long *ptr)
+{
+	unsigned long addr;
+
+	addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+	asm volatile(
+		"	nc	0(1,%1),0(%2)"
+		: "=m" (*(char *) addr)	: "a" (addr),
+		  "a" (_ni_bitmap + (nr & 7)), "m" (*(char *) addr) : "cc");
+}
+
+static inline void 
+__constant_clear_bit(const unsigned long nr, volatile unsigned long *ptr)
+{
+	unsigned long addr;
+
+	addr = ((unsigned long) ptr) + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+	*(unsigned char *) addr &= ~(1 << (nr & 7));
+}
+
+#define clear_bit_simple(nr,addr) \
+(__builtin_constant_p((nr)) ? \
+ __constant_clear_bit((nr),(addr)) : \
+ __clear_bit((nr),(addr)) )
+
+/* 
+ * fast, non-SMP change_bit routine 
+ */
+static inline void __change_bit(unsigned long nr, volatile unsigned long *ptr)
+{
+	unsigned long addr;
+
+	addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+	asm volatile(
+		"	xc	0(1,%1),0(%2)"
+		:  "=m" (*(char *) addr) : "a" (addr),
+		   "a" (_oi_bitmap + (nr & 7)), "m" (*(char *) addr) : "cc" );
+}
+
+static inline void 
+__constant_change_bit(const unsigned long nr, volatile unsigned long *ptr) 
+{
+	unsigned long addr;
+
+	addr = ((unsigned long) ptr) + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+	*(unsigned char *) addr ^= 1 << (nr & 7);
+}
+
+#define change_bit_simple(nr,addr) \
+(__builtin_constant_p((nr)) ? \
+ __constant_change_bit((nr),(addr)) : \
+ __change_bit((nr),(addr)) )
+
+/*
+ * fast, non-SMP test_and_set_bit routine
+ */
+static inline int
+test_and_set_bit_simple(unsigned long nr, volatile unsigned long *ptr)
+{
+	unsigned long addr;
+	unsigned char ch;
+
+	addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+	ch = *(unsigned char *) addr;
+	asm volatile(
+		"	oc	0(1,%1),0(%2)"
+		: "=m" (*(char *) addr)
+		: "a" (addr), "a" (_oi_bitmap + (nr & 7)),
+		  "m" (*(char *) addr) : "cc", "memory");
+	return (ch >> (nr & 7)) & 1;
+}
+#define __test_and_set_bit(X,Y)		test_and_set_bit_simple(X,Y)
+
+/*
+ * fast, non-SMP test_and_clear_bit routine
+ */
+static inline int
+test_and_clear_bit_simple(unsigned long nr, volatile unsigned long *ptr)
+{
+	unsigned long addr;
+	unsigned char ch;
+
+	addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+	ch = *(unsigned char *) addr;
+	asm volatile(
+		"	nc	0(1,%1),0(%2)"
+		: "=m" (*(char *) addr)
+		: "a" (addr), "a" (_ni_bitmap + (nr & 7)),
+		  "m" (*(char *) addr) : "cc", "memory");
+	return (ch >> (nr & 7)) & 1;
+}
+#define __test_and_clear_bit(X,Y)	test_and_clear_bit_simple(X,Y)
+
+/*
+ * fast, non-SMP test_and_change_bit routine
+ */
+static inline int
+test_and_change_bit_simple(unsigned long nr, volatile unsigned long *ptr)
+{
+	unsigned long addr;
+	unsigned char ch;
+
+	addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+	ch = *(unsigned char *) addr;
+	asm volatile(
+		"	xc	0(1,%1),0(%2)"
+		: "=m" (*(char *) addr)
+		: "a" (addr), "a" (_oi_bitmap + (nr & 7)),
+		  "m" (*(char *) addr) : "cc", "memory");
+	return (ch >> (nr & 7)) & 1;
+}
+#define __test_and_change_bit(X,Y)	test_and_change_bit_simple(X,Y)
+
+#ifdef CONFIG_SMP
+#define set_bit             set_bit_cs
+#define clear_bit           clear_bit_cs
+#define change_bit          change_bit_cs
+#define test_and_set_bit    test_and_set_bit_cs
+#define test_and_clear_bit  test_and_clear_bit_cs
+#define test_and_change_bit test_and_change_bit_cs
+#else
+#define set_bit             set_bit_simple
+#define clear_bit           clear_bit_simple
+#define change_bit          change_bit_simple
+#define test_and_set_bit    test_and_set_bit_simple
+#define test_and_clear_bit  test_and_clear_bit_simple
+#define test_and_change_bit test_and_change_bit_simple
+#endif
+
+
+/*
+ * This routine doesn't need to be atomic.
+ */
+
+static inline int __test_bit(unsigned long nr, const volatile unsigned long *ptr)
+{
+	unsigned long addr;
+	unsigned char ch;
+
+	addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+	ch = *(volatile unsigned char *) addr;
+	return (ch >> (nr & 7)) & 1;
+}
+
+static inline int 
+__constant_test_bit(unsigned long nr, const volatile unsigned long *addr) {
+    return (((volatile char *) addr)
+	    [(nr^(__BITOPS_WORDSIZE-8))>>3] & (1<<(nr&7))) != 0;
+}
+
+#define test_bit(nr,addr) \
+(__builtin_constant_p((nr)) ? \
+ __constant_test_bit((nr),(addr)) : \
+ __test_bit((nr),(addr)) )
+
+/*
+ * Optimized find bit helper functions.
+ */
+
+/**
+ * __ffz_word_loop - find byte offset of first long != -1UL
+ * @addr: pointer to array of unsigned long
+ * @size: size of the array in bits
+ */
+static inline unsigned long __ffz_word_loop(const unsigned long *addr,
+					    unsigned long size)
+{
+	typedef struct { long _[__BITOPS_WORDS(size)]; } addrtype;
+	unsigned long bytes = 0;
+
+	asm volatile(
+#ifndef __s390x__
+		"	ahi	%1,-1\n"
+		"	sra	%1,5\n"
+		"	jz	1f\n"
+		"0:	c	%2,0(%0,%3)\n"
+		"	jne	1f\n"
+		"	la	%0,4(%0)\n"
+		"	brct	%1,0b\n"
+		"1:\n"
+#else
+		"	aghi	%1,-1\n"
+		"	srag	%1,%1,6\n"
+		"	jz	1f\n"
+		"0:	cg	%2,0(%0,%3)\n"
+		"	jne	1f\n"
+		"	la	%0,8(%0)\n"
+		"	brct	%1,0b\n"
+		"1:\n"
+#endif
+		: "+&a" (bytes), "+&d" (size)
+		: "d" (-1UL), "a" (addr), "m" (*(addrtype *) addr)
+		: "cc" );
+	return bytes;
+}
+
+/**
+ * __ffs_word_loop - find byte offset of first long != 0UL
+ * @addr: pointer to array of unsigned long
+ * @size: size of the array in bits
+ */
+static inline unsigned long __ffs_word_loop(const unsigned long *addr,
+					    unsigned long size)
+{
+	typedef struct { long _[__BITOPS_WORDS(size)]; } addrtype;
+	unsigned long bytes = 0;
+
+	asm volatile(
+#ifndef __s390x__
+		"	ahi	%1,-1\n"
+		"	sra	%1,5\n"
+		"	jz	1f\n"
+		"0:	c	%2,0(%0,%3)\n"
+		"	jne	1f\n"
+		"	la	%0,4(%0)\n"
+		"	brct	%1,0b\n"
+		"1:\n"
+#else
+		"	aghi	%1,-1\n"
+		"	srag	%1,%1,6\n"
+		"	jz	1f\n"
+		"0:	cg	%2,0(%0,%3)\n"
+		"	jne	1f\n"
+		"	la	%0,8(%0)\n"
+		"	brct	%1,0b\n"
+		"1:\n"
+#endif
+		: "+&a" (bytes), "+&a" (size)
+		: "d" (0UL), "a" (addr), "m" (*(addrtype *) addr)
+		: "cc" );
+	return bytes;
+}
+
+/**
+ * __ffz_word - add number of the first unset bit
+ * @nr: base value the bit number is added to
+ * @word: the word that is searched for unset bits
+ */
+static inline unsigned long __ffz_word(unsigned long nr, unsigned long word)
+{
+#ifdef __s390x__
+	if (likely((word & 0xffffffff) == 0xffffffff)) {
+		word >>= 32;
+		nr += 32;
+	}
+#endif
+	if (likely((word & 0xffff) == 0xffff)) {
+		word >>= 16;
+		nr += 16;
+	}
+	if (likely((word & 0xff) == 0xff)) {
+		word >>= 8;
+		nr += 8;
+	}
+	return nr + _zb_findmap[(unsigned char) word];
+}
+
+/**
+ * __ffs_word - add number of the first set bit
+ * @nr: base value the bit number is added to
+ * @word: the word that is searched for set bits
+ */
+static inline unsigned long __ffs_word(unsigned long nr, unsigned long word)
+{
+#ifdef __s390x__
+	if (likely((word & 0xffffffff) == 0)) {
+		word >>= 32;
+		nr += 32;
+	}
+#endif
+	if (likely((word & 0xffff) == 0)) {
+		word >>= 16;
+		nr += 16;
+	}
+	if (likely((word & 0xff) == 0)) {
+		word >>= 8;
+		nr += 8;
+	}
+	return nr + _sb_findmap[(unsigned char) word];
+}
+
+
+/**
+ * __load_ulong_be - load big endian unsigned long
+ * @p: pointer to array of unsigned long
+ * @offset: byte offset of source value in the array
+ */
+static inline unsigned long __load_ulong_be(const unsigned long *p,
+					    unsigned long offset)
+{
+	p = (unsigned long *)((unsigned long) p + offset);
+	return *p;
+}
+
+/**
+ * __load_ulong_le - load little endian unsigned long
+ * @p: pointer to array of unsigned long
+ * @offset: byte offset of source value in the array
+ */
+static inline unsigned long __load_ulong_le(const unsigned long *p,
+					    unsigned long offset)
+{
+	unsigned long word;
+
+	p = (unsigned long *)((unsigned long) p + offset);
+#ifndef __s390x__
+	asm volatile(
+		"	ic	%0,0(%1)\n"
+		"	icm	%0,2,1(%1)\n"
+		"	icm	%0,4,2(%1)\n"
+		"	icm	%0,8,3(%1)"
+		: "=&d" (word) : "a" (p), "m" (*p) : "cc");
+#else
+	asm volatile(
+		"	lrvg	%0,%1"
+		: "=d" (word) : "m" (*p) );
+#endif
+	return word;
+}
+
+/*
+ * The various find bit functions.
+ */
+
+/*
+ * ffz - find first zero in word.
+ * @word: The word to search
+ *
+ * Undefined if no zero exists, so code should check against ~0UL first.
+ */
+static inline unsigned long ffz(unsigned long word)
+{
+	return __ffz_word(0, word);
+}
+
+/**
+ * __ffs - find first bit in word.
+ * @word: The word to search
+ *
+ * Undefined if no bit exists, so code should check against 0 first.
+ */
+static inline unsigned long __ffs (unsigned long word)
+{
+	return __ffs_word(0, word);
+}
+
+/**
+ * ffs - find first bit set
+ * @x: the word to search
+ *
+ * This is defined the same way as
+ * the libc and compiler builtin ffs routines, therefore
+ * differs in spirit from the above ffz (man ffs).
+ */
+static inline int ffs(int x)
+{
+	if (!x)
+		return 0;
+	return __ffs_word(1, x);
+}
+
+/**
+ * find_first_zero_bit - find the first zero bit in a memory region
+ * @addr: The address to start the search at
+ * @size: The maximum size to search
+ *
+ * Returns the bit-number of the first zero bit, not the number of the byte
+ * containing a bit.
+ */
+static inline unsigned long find_first_zero_bit(const unsigned long *addr,
+						unsigned long size)
+{
+	unsigned long bytes, bits;
+
+        if (!size)
+                return 0;
+	bytes = __ffz_word_loop(addr, size);
+	bits = __ffz_word(bytes*8, __load_ulong_be(addr, bytes));
+	return (bits < size) ? bits : size;
+}
+
+/**
+ * find_first_bit - find the first set bit in a memory region
+ * @addr: The address to start the search at
+ * @size: The maximum size to search
+ *
+ * Returns the bit-number of the first set bit, not the number of the byte
+ * containing a bit.
+ */
+static inline unsigned long find_first_bit(const unsigned long * addr,
+					   unsigned long size)
+{
+	unsigned long bytes, bits;
+
+        if (!size)
+                return 0;
+	bytes = __ffs_word_loop(addr, size);
+	bits = __ffs_word(bytes*8, __load_ulong_be(addr, bytes));
+	return (bits < size) ? bits : size;
+}
+
+/**
+ * find_next_zero_bit - find the first zero bit in a memory region
+ * @addr: The address to base the search on
+ * @offset: The bitnumber to start searching at
+ * @size: The maximum size to search
+ */
+static inline int find_next_zero_bit (const unsigned long * addr,
+				      unsigned long size,
+				      unsigned long offset)
+{
+        const unsigned long *p;
+	unsigned long bit, set;
+
+	if (offset >= size)
+		return size;
+	bit = offset & (__BITOPS_WORDSIZE - 1);
+	offset -= bit;
+	size -= offset;
+	p = addr + offset / __BITOPS_WORDSIZE;
+	if (bit) {
+		/*
+		 * __ffz_word returns __BITOPS_WORDSIZE
+		 * if no zero bit is present in the word.
+		 */
+		set = __ffz_word(bit, *p >> bit);
+		if (set >= size)
+			return size + offset;
+		if (set < __BITOPS_WORDSIZE)
+			return set + offset;
+		offset += __BITOPS_WORDSIZE;
+		size -= __BITOPS_WORDSIZE;
+		p++;
+	}
+	return offset + find_first_zero_bit(p, size);
+}
+
+/**
+ * find_next_bit - find the first set bit in a memory region
+ * @addr: The address to base the search on
+ * @offset: The bitnumber to start searching at
+ * @size: The maximum size to search
+ */
+static inline int find_next_bit (const unsigned long * addr,
+				 unsigned long size,
+				 unsigned long offset)
+{
+        const unsigned long *p;
+	unsigned long bit, set;
+
+	if (offset >= size)
+		return size;
+	bit = offset & (__BITOPS_WORDSIZE - 1);
+	offset -= bit;
+	size -= offset;
+	p = addr + offset / __BITOPS_WORDSIZE;
+	if (bit) {
+		/*
+		 * __ffs_word returns __BITOPS_WORDSIZE
+		 * if no one bit is present in the word.
+		 */
+		set = __ffs_word(0, *p & (~0UL << bit));
+		if (set >= size)
+			return size + offset;
+		if (set < __BITOPS_WORDSIZE)
+			return set + offset;
+		offset += __BITOPS_WORDSIZE;
+		size -= __BITOPS_WORDSIZE;
+		p++;
+	}
+	return offset + find_first_bit(p, size);
+}
+
+/*
+ * Every architecture must define this function. It's the fastest
+ * way of searching a 140-bit bitmap where the first 100 bits are
+ * unlikely to be set. It's guaranteed that at least one of the 140
+ * bits is cleared.
+ */
+static inline int sched_find_first_bit(unsigned long *b)
+{
+	return find_first_bit(b, 140);
+}
+
+#include <asm-generic/bitops/fls.h>
+#include <asm-generic/bitops/__fls.h>
+#include <asm-generic/bitops/fls64.h>
+
+#include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/lock.h>
+
+/*
+ * ATTENTION: intel byte ordering convention for ext2 and minix !!
+ * bit 0 is the LSB of addr; bit 31 is the MSB of addr;
+ * bit 32 is the LSB of (addr+4).
+ * That combined with the little endian byte order of Intel gives the
+ * following bit order in memory:
+ *    07 06 05 04 03 02 01 00 15 14 13 12 11 10 09 08 \
+ *    23 22 21 20 19 18 17 16 31 30 29 28 27 26 25 24
+ */
+
+#define ext2_set_bit(nr, addr)       \
+	__test_and_set_bit((nr)^(__BITOPS_WORDSIZE - 8), (unsigned long *)addr)
+#define ext2_set_bit_atomic(lock, nr, addr)       \
+	test_and_set_bit((nr)^(__BITOPS_WORDSIZE - 8), (unsigned long *)addr)
+#define ext2_clear_bit(nr, addr)     \
+	__test_and_clear_bit((nr)^(__BITOPS_WORDSIZE - 8), (unsigned long *)addr)
+#define ext2_clear_bit_atomic(lock, nr, addr)     \
+	test_and_clear_bit((nr)^(__BITOPS_WORDSIZE - 8), (unsigned long *)addr)
+#define ext2_test_bit(nr, addr)      \
+	test_bit((nr)^(__BITOPS_WORDSIZE - 8), (unsigned long *)addr)
+
+static inline int ext2_find_first_zero_bit(void *vaddr, unsigned int size)
+{
+	unsigned long bytes, bits;
+
+        if (!size)
+                return 0;
+	bytes = __ffz_word_loop(vaddr, size);
+	bits = __ffz_word(bytes*8, __load_ulong_le(vaddr, bytes));
+	return (bits < size) ? bits : size;
+}
+
+static inline int ext2_find_next_zero_bit(void *vaddr, unsigned long size,
+					  unsigned long offset)
+{
+        unsigned long *addr = vaddr, *p;
+	unsigned long bit, set;
+
+        if (offset >= size)
+                return size;
+	bit = offset & (__BITOPS_WORDSIZE - 1);
+	offset -= bit;
+	size -= offset;
+	p = addr + offset / __BITOPS_WORDSIZE;
+        if (bit) {
+		/*
+		 * s390 version of ffz returns __BITOPS_WORDSIZE
+		 * if no zero bit is present in the word.
+		 */
+		set = __ffz_word(bit, __load_ulong_le(p, 0) >> bit);
+		if (set >= size)
+			return size + offset;
+		if (set < __BITOPS_WORDSIZE)
+			return set + offset;
+		offset += __BITOPS_WORDSIZE;
+		size -= __BITOPS_WORDSIZE;
+		p++;
+        }
+	return offset + ext2_find_first_zero_bit(p, size);
+}
+
+static inline unsigned long ext2_find_first_bit(void *vaddr,
+						unsigned long size)
+{
+	unsigned long bytes, bits;
+
+	if (!size)
+		return 0;
+	bytes = __ffs_word_loop(vaddr, size);
+	bits = __ffs_word(bytes*8, __load_ulong_le(vaddr, bytes));
+	return (bits < size) ? bits : size;
+}
+
+static inline int ext2_find_next_bit(void *vaddr, unsigned long size,
+				     unsigned long offset)
+{
+	unsigned long *addr = vaddr, *p;
+	unsigned long bit, set;
+
+	if (offset >= size)
+		return size;
+	bit = offset & (__BITOPS_WORDSIZE - 1);
+	offset -= bit;
+	size -= offset;
+	p = addr + offset / __BITOPS_WORDSIZE;
+	if (bit) {
+		/*
+		 * s390 version of ffz returns __BITOPS_WORDSIZE
+		 * if no zero bit is present in the word.
+		 */
+		set = __ffs_word(0, __load_ulong_le(p, 0) & (~0UL << bit));
+		if (set >= size)
+			return size + offset;
+		if (set < __BITOPS_WORDSIZE)
+			return set + offset;
+		offset += __BITOPS_WORDSIZE;
+		size -= __BITOPS_WORDSIZE;
+		p++;
+	}
+	return offset + ext2_find_first_bit(p, size);
+}
+
+#include <asm-generic/bitops/minix.h>
+
+#endif /* __KERNEL__ */
+
+#endif /* _S390_BITOPS_H */
diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h
new file mode 100644
index 00000000000..384e3621e34
--- /dev/null
+++ b/arch/s390/include/asm/bug.h
@@ -0,0 +1,70 @@
+#ifndef _ASM_S390_BUG_H
+#define _ASM_S390_BUG_H
+
+#include <linux/kernel.h>
+
+#ifdef CONFIG_BUG
+
+#ifdef CONFIG_64BIT
+#define S390_LONG ".quad"
+#else
+#define S390_LONG ".long"
+#endif
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+
+#define __EMIT_BUG(x) do {					\
+	asm volatile(						\
+		"0:	j	0b+2\n"				\
+		"1:\n"						\
+		".section .rodata.str,\"aMS\",@progbits,1\n"	\
+		"2:	.asciz	\""__FILE__"\"\n"		\
+		".previous\n"					\
+		".section __bug_table,\"a\"\n"			\
+		"3:\t"	S390_LONG "\t1b,2b\n"			\
+		"	.short	%0,%1\n"			\
+		"	.org	3b+%2\n"			\
+		".previous\n"					\
+		: : "i" (__LINE__),				\
+		    "i" (x),					\
+		    "i" (sizeof(struct bug_entry)));		\
+} while (0)
+
+#else /* CONFIG_DEBUG_BUGVERBOSE */
+
+#define __EMIT_BUG(x) do {				\
+	asm volatile(					\
+		"0:	j	0b+2\n"			\
+		"1:\n"					\
+		".section __bug_table,\"a\"\n"		\
+		"2:\t"	S390_LONG "\t1b\n"		\
+		"	.short	%0\n"			\
+		"	.org	2b+%1\n"		\
+		".previous\n"				\
+		: : "i" (x),				\
+		    "i" (sizeof(struct bug_entry)));	\
+} while (0)
+
+#endif /* CONFIG_DEBUG_BUGVERBOSE */
+
+#define BUG()	__EMIT_BUG(0)
+
+#define WARN_ON(x) ({					\
+	int __ret_warn_on = !!(x);			\
+	if (__builtin_constant_p(__ret_warn_on)) {	\
+		if (__ret_warn_on)			\
+			__EMIT_BUG(BUGFLAG_WARNING);	\
+	} else {					\
+		if (unlikely(__ret_warn_on))		\
+			__EMIT_BUG(BUGFLAG_WARNING);	\
+	}						\
+	unlikely(__ret_warn_on);			\
+})
+
+#define HAVE_ARCH_BUG
+#define HAVE_ARCH_WARN_ON
+#endif /* CONFIG_BUG */
+
+#include <asm-generic/bug.h>
+
+#endif /* _ASM_S390_BUG_H */
diff --git a/arch/s390/include/asm/bugs.h b/arch/s390/include/asm/bugs.h
new file mode 100644
index 00000000000..011f1e6a2a6
--- /dev/null
+++ b/arch/s390/include/asm/bugs.h
@@ -0,0 +1,22 @@
+/*
+ *  include/asm-s390/bugs.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/bugs.h"
+ *    Copyright (C) 1994  Linus Torvalds
+ */
+
+/*
+ * This is included by init/main.c to check for architecture-dependent bugs.
+ *
+ * Needs:
+ *      void check_bugs(void);
+ */
+
+static inline void check_bugs(void)
+{
+  /* s390 has no bugs ... */
+}
diff --git a/arch/s390/include/asm/byteorder.h b/arch/s390/include/asm/byteorder.h
new file mode 100644
index 00000000000..1fe2492baa8
--- /dev/null
+++ b/arch/s390/include/asm/byteorder.h
@@ -0,0 +1,125 @@
+#ifndef _S390_BYTEORDER_H
+#define _S390_BYTEORDER_H
+
+/*
+ *  include/asm-s390/byteorder.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ */
+
+#include <asm/types.h>
+
+#ifdef __GNUC__
+
+#ifdef __s390x__
+static inline __u64 ___arch__swab64p(const __u64 *x)
+{
+	__u64 result;
+
+	asm volatile("lrvg %0,%1" : "=d" (result) : "m" (*x));
+	return result;
+}
+
+static inline __u64 ___arch__swab64(__u64 x)
+{
+	__u64 result;
+
+	asm volatile("lrvgr %0,%1" : "=d" (result) : "d" (x));
+	return result;
+}
+
+static inline void ___arch__swab64s(__u64 *x)
+{
+	*x = ___arch__swab64p(x);
+}
+#endif /* __s390x__ */
+
+static inline __u32 ___arch__swab32p(const __u32 *x)
+{
+	__u32 result;
+	
+	asm volatile(
+#ifndef __s390x__
+		"	icm	%0,8,3(%1)\n"
+		"	icm	%0,4,2(%1)\n"
+		"	icm	%0,2,1(%1)\n"
+		"	ic	%0,0(%1)"
+		: "=&d" (result) : "a" (x), "m" (*x) : "cc");
+#else /* __s390x__ */
+		"	lrv	%0,%1"
+		: "=d" (result) : "m" (*x));
+#endif /* __s390x__ */
+	return result;
+}
+
+static inline __u32 ___arch__swab32(__u32 x)
+{
+#ifndef __s390x__
+	return ___arch__swab32p(&x);
+#else /* __s390x__ */
+	__u32 result;
+	
+	asm volatile("lrvr  %0,%1" : "=d" (result) : "d" (x));
+	return result;
+#endif /* __s390x__ */
+}
+
+static __inline__ void ___arch__swab32s(__u32 *x)
+{
+	*x = ___arch__swab32p(x);
+}
+
+static __inline__ __u16 ___arch__swab16p(const __u16 *x)
+{
+	__u16 result;
+	
+	asm volatile(
+#ifndef __s390x__
+		"	icm	%0,2,1(%1)\n"
+		"	ic	%0,0(%1)\n"
+		: "=&d" (result) : "a" (x), "m" (*x) : "cc");
+#else /* __s390x__ */
+		"	lrvh	%0,%1"
+		: "=d" (result) : "m" (*x));
+#endif /* __s390x__ */
+	return result;
+}
+
+static __inline__ __u16 ___arch__swab16(__u16 x)
+{
+	return ___arch__swab16p(&x);
+}
+
+static __inline__ void ___arch__swab16s(__u16 *x)
+{
+	*x = ___arch__swab16p(x);
+}
+
+#ifdef __s390x__
+#define __arch__swab64(x) ___arch__swab64(x)
+#define __arch__swab64p(x) ___arch__swab64p(x)
+#define __arch__swab64s(x) ___arch__swab64s(x)
+#endif /* __s390x__ */
+#define __arch__swab32(x) ___arch__swab32(x)
+#define __arch__swab16(x) ___arch__swab16(x)
+#define __arch__swab32p(x) ___arch__swab32p(x)
+#define __arch__swab16p(x) ___arch__swab16p(x)
+#define __arch__swab32s(x) ___arch__swab32s(x)
+#define __arch__swab16s(x) ___arch__swab16s(x)
+
+#ifndef __s390x__
+#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
+#  define __BYTEORDER_HAS_U64__
+#  define __SWAB_64_THRU_32__
+#endif
+#else /* __s390x__ */
+#define __BYTEORDER_HAS_U64__
+#endif /* __s390x__ */
+
+#endif /* __GNUC__ */
+
+#include <linux/byteorder/big_endian.h>
+
+#endif /* _S390_BYTEORDER_H */
diff --git a/arch/s390/include/asm/cache.h b/arch/s390/include/asm/cache.h
new file mode 100644
index 00000000000..9b866816863
--- /dev/null
+++ b/arch/s390/include/asm/cache.h
@@ -0,0 +1,19 @@
+/*
+ *  include/asm-s390/cache.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *
+ *  Derived from "include/asm-i386/cache.h"
+ *    Copyright (C) 1992, Linus Torvalds
+ */
+
+#ifndef __ARCH_S390_CACHE_H
+#define __ARCH_S390_CACHE_H
+
+#define L1_CACHE_BYTES     256
+#define L1_CACHE_SHIFT     8
+
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+
+#endif
diff --git a/arch/s390/include/asm/cacheflush.h b/arch/s390/include/asm/cacheflush.h
new file mode 100644
index 00000000000..49d5af916d0
--- /dev/null
+++ b/arch/s390/include/asm/cacheflush.h
@@ -0,0 +1,31 @@
+#ifndef _S390_CACHEFLUSH_H
+#define _S390_CACHEFLUSH_H
+
+/* Keep includes the same across arches.  */
+#include <linux/mm.h>
+
+/* Caches aren't brain-dead on the s390. */
+#define flush_cache_all()			do { } while (0)
+#define flush_cache_mm(mm)			do { } while (0)
+#define flush_cache_dup_mm(mm)			do { } while (0)
+#define flush_cache_range(vma, start, end)	do { } while (0)
+#define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)
+#define flush_dcache_page(page)			do { } while (0)
+#define flush_dcache_mmap_lock(mapping)		do { } while (0)
+#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
+#define flush_icache_range(start, end)		do { } while (0)
+#define flush_icache_page(vma,pg)		do { } while (0)
+#define flush_icache_user_range(vma,pg,adr,len)	do { } while (0)
+#define flush_cache_vmap(start, end)		do { } while (0)
+#define flush_cache_vunmap(start, end)		do { } while (0)
+
+#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
+	memcpy(dst, src, len)
+#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
+	memcpy(dst, src, len)
+
+#ifdef CONFIG_DEBUG_PAGEALLOC
+void kernel_map_pages(struct page *page, int numpages, int enable);
+#endif
+
+#endif /* _S390_CACHEFLUSH_H */
diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h
new file mode 100644
index 00000000000..ba007d8df94
--- /dev/null
+++ b/arch/s390/include/asm/ccwdev.h
@@ -0,0 +1,192 @@
+/*
+ *  include/asm-s390/ccwdev.h
+ *  include/asm-s390x/ccwdev.h
+ *
+ *    Copyright (C) 2002 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Arnd Bergmann <arndb@de.ibm.com>
+ *
+ *  Interface for CCW device drivers
+ */
+#ifndef _S390_CCWDEV_H_
+#define _S390_CCWDEV_H_
+
+#include <linux/device.h>
+#include <linux/mod_devicetable.h>
+#include <asm/fcx.h>
+
+/* structs from asm/cio.h */
+struct irb;
+struct ccw1;
+struct ccw_dev_id;
+
+/* simplified initializers for struct ccw_device:
+ * CCW_DEVICE and CCW_DEVICE_DEVTYPE initialize one
+ * entry in your MODULE_DEVICE_TABLE and set the match_flag correctly */
+#define CCW_DEVICE(cu, cum) 						\
+	.cu_type=(cu), .cu_model=(cum),					\
+	.match_flags=(CCW_DEVICE_ID_MATCH_CU_TYPE			\
+		   | (cum ? CCW_DEVICE_ID_MATCH_CU_MODEL : 0))
+
+#define CCW_DEVICE_DEVTYPE(cu, cum, dev, devm)				\
+	.cu_type=(cu), .cu_model=(cum), .dev_type=(dev), .dev_model=(devm),\
+	.match_flags=CCW_DEVICE_ID_MATCH_CU_TYPE			\
+		   | ((cum) ? CCW_DEVICE_ID_MATCH_CU_MODEL : 0) 	\
+		   | CCW_DEVICE_ID_MATCH_DEVICE_TYPE			\
+		   | ((devm) ? CCW_DEVICE_ID_MATCH_DEVICE_MODEL : 0)
+
+/* scan through an array of device ids and return the first
+ * entry that matches the device.
+ *
+ * the array must end with an entry containing zero match_flags
+ */
+static inline const struct ccw_device_id *
+ccw_device_id_match(const struct ccw_device_id *array,
+			const struct ccw_device_id *match)
+{
+	const struct ccw_device_id *id = array;
+
+	for (id = array; id->match_flags; id++) {
+		if ((id->match_flags & CCW_DEVICE_ID_MATCH_CU_TYPE)
+		    && (id->cu_type != match->cu_type))
+			continue;
+
+		if ((id->match_flags & CCW_DEVICE_ID_MATCH_CU_MODEL)
+		    && (id->cu_model != match->cu_model))
+			continue;
+
+		if ((id->match_flags & CCW_DEVICE_ID_MATCH_DEVICE_TYPE)
+		    && (id->dev_type != match->dev_type))
+			continue;
+
+		if ((id->match_flags & CCW_DEVICE_ID_MATCH_DEVICE_MODEL)
+		    && (id->dev_model != match->dev_model))
+			continue;
+
+		return id;
+	}
+
+	return NULL;
+}
+
+/**
+ * struct ccw_device - channel attached device
+ * @ccwlock: pointer to device lock
+ * @id: id of this device
+ * @drv: ccw driver for this device
+ * @dev: embedded device structure
+ * @online: online status of device
+ * @handler: interrupt handler
+ *
+ * @handler is a member of the device rather than the driver since a driver
+ * can have different interrupt handlers for different ccw devices
+ * (multi-subchannel drivers).
+ */
+struct ccw_device {
+	spinlock_t *ccwlock;
+/* private: */
+	struct ccw_device_private *private;	/* cio private information */
+/* public: */
+	struct ccw_device_id id;
+	struct ccw_driver *drv;
+	struct device dev;
+	int online;
+	void (*handler) (struct ccw_device *, unsigned long, struct irb *);
+};
+
+
+/**
+ * struct ccw driver - device driver for channel attached devices
+ * @owner: owning module
+ * @ids: ids supported by this driver
+ * @probe: function called on probe
+ * @remove: function called on remove
+ * @set_online: called when setting device online
+ * @set_offline: called when setting device offline
+ * @notify: notify driver of device state changes
+ * @shutdown: called at device shutdown
+ * @driver: embedded device driver structure
+ * @name: device driver name
+ */
+struct ccw_driver {
+	struct module *owner;
+	struct ccw_device_id *ids;
+	int (*probe) (struct ccw_device *);
+	void (*remove) (struct ccw_device *);
+	int (*set_online) (struct ccw_device *);
+	int (*set_offline) (struct ccw_device *);
+	int (*notify) (struct ccw_device *, int);
+	void (*shutdown) (struct ccw_device *);
+	struct device_driver driver;
+	char *name;
+};
+
+extern struct ccw_device *get_ccwdev_by_busid(struct ccw_driver *cdrv,
+					      const char *bus_id);
+
+/* devices drivers call these during module load and unload.
+ * When a driver is registered, its probe method is called
+ * when new devices for its type pop up */
+extern int  ccw_driver_register   (struct ccw_driver *driver);
+extern void ccw_driver_unregister (struct ccw_driver *driver);
+
+struct ccw1;
+
+extern int ccw_device_set_options_mask(struct ccw_device *, unsigned long);
+extern int ccw_device_set_options(struct ccw_device *, unsigned long);
+extern void ccw_device_clear_options(struct ccw_device *, unsigned long);
+
+/* Allow for i/o completion notification after primary interrupt status. */
+#define CCWDEV_EARLY_NOTIFICATION	0x0001
+/* Report all interrupt conditions. */
+#define CCWDEV_REPORT_ALL	 	0x0002
+/* Try to perform path grouping. */
+#define CCWDEV_DO_PATHGROUP             0x0004
+/* Allow forced onlining of boxed devices. */
+#define CCWDEV_ALLOW_FORCE              0x0008
+
+extern int ccw_device_start(struct ccw_device *, struct ccw1 *,
+			    unsigned long, __u8, unsigned long);
+extern int ccw_device_start_timeout(struct ccw_device *, struct ccw1 *,
+				    unsigned long, __u8, unsigned long, int);
+extern int ccw_device_start_key(struct ccw_device *, struct ccw1 *,
+				unsigned long, __u8, __u8, unsigned long);
+extern int ccw_device_start_timeout_key(struct ccw_device *, struct ccw1 *,
+					unsigned long, __u8, __u8,
+					unsigned long, int);
+
+
+extern int ccw_device_resume(struct ccw_device *);
+extern int ccw_device_halt(struct ccw_device *, unsigned long);
+extern int ccw_device_clear(struct ccw_device *, unsigned long);
+int ccw_device_tm_start_key(struct ccw_device *cdev, struct tcw *tcw,
+			    unsigned long intparm, u8 lpm, u8 key);
+int ccw_device_tm_start_key(struct ccw_device *, struct tcw *,
+			    unsigned long, u8, u8);
+int ccw_device_tm_start_timeout_key(struct ccw_device *, struct tcw *,
+			    unsigned long, u8, u8, int);
+int ccw_device_tm_start(struct ccw_device *, struct tcw *,
+			    unsigned long, u8);
+int ccw_device_tm_start_timeout(struct ccw_device *, struct tcw *,
+			    unsigned long, u8, int);
+int ccw_device_tm_intrg(struct ccw_device *cdev);
+
+extern int ccw_device_set_online(struct ccw_device *cdev);
+extern int ccw_device_set_offline(struct ccw_device *cdev);
+
+
+extern struct ciw *ccw_device_get_ciw(struct ccw_device *, __u32 cmd);
+extern __u8 ccw_device_get_path_mask(struct ccw_device *);
+extern void ccw_device_get_id(struct ccw_device *, struct ccw_dev_id *);
+
+#define get_ccwdev_lock(x) (x)->ccwlock
+
+#define to_ccwdev(n) container_of(n, struct ccw_device, dev)
+#define to_ccwdrv(n) container_of(n, struct ccw_driver, driver)
+
+extern struct ccw_device *ccw_device_probe_console(void);
+
+// FIXME: these have to go
+extern int _ccw_device_get_subchannel_number(struct ccw_device *);
+
+extern void *ccw_device_get_chp_desc(struct ccw_device *, int);
+#endif /* _S390_CCWDEV_H_ */
diff --git a/arch/s390/include/asm/ccwgroup.h b/arch/s390/include/asm/ccwgroup.h
new file mode 100644
index 00000000000..a27f68985a7
--- /dev/null
+++ b/arch/s390/include/asm/ccwgroup.h
@@ -0,0 +1,69 @@
+#ifndef S390_CCWGROUP_H
+#define S390_CCWGROUP_H
+
+struct ccw_device;
+struct ccw_driver;
+
+/**
+ * struct ccwgroup_device - ccw group device
+ * @creator_id: unique number of the driver
+ * @state: online/offline state
+ * @count: number of attached slave devices
+ * @dev: embedded device structure
+ * @cdev: variable number of slave devices, allocated as needed
+ */
+struct ccwgroup_device {
+	unsigned long creator_id;
+	enum {
+		CCWGROUP_OFFLINE,
+		CCWGROUP_ONLINE,
+	} state;
+/* private: */
+	atomic_t onoff;
+	struct mutex reg_mutex;
+/* public: */
+	unsigned int count;
+	struct device	dev;
+	struct ccw_device *cdev[0];
+};
+
+/**
+ * struct ccwgroup_driver - driver for ccw group devices
+ * @owner: driver owner
+ * @name: driver name
+ * @max_slaves: maximum number of slave devices
+ * @driver_id: unique id
+ * @probe: function called on probe
+ * @remove: function called on remove
+ * @set_online: function called when device is set online
+ * @set_offline: function called when device is set offline
+ * @shutdown: function called when device is shut down
+ * @driver: embedded driver structure
+ */
+struct ccwgroup_driver {
+	struct module *owner;
+	char *name;
+	int max_slaves;
+	unsigned long driver_id;
+
+	int (*probe) (struct ccwgroup_device *);
+	void (*remove) (struct ccwgroup_device *);
+	int (*set_online) (struct ccwgroup_device *);
+	int (*set_offline) (struct ccwgroup_device *);
+	void (*shutdown)(struct ccwgroup_device *);
+
+	struct device_driver driver;
+};
+
+extern int  ccwgroup_driver_register   (struct ccwgroup_driver *cdriver);
+extern void ccwgroup_driver_unregister (struct ccwgroup_driver *cdriver);
+int ccwgroup_create_from_string(struct device *root, unsigned int creator_id,
+				struct ccw_driver *cdrv, int num_devices,
+				const char *buf);
+
+extern int ccwgroup_probe_ccwdev(struct ccw_device *cdev);
+extern void ccwgroup_remove_ccwdev(struct ccw_device *cdev);
+
+#define to_ccwgroupdev(x) container_of((x), struct ccwgroup_device, dev)
+#define to_ccwgroupdrv(x) container_of((x), struct ccwgroup_driver, driver)
+#endif
diff --git a/arch/s390/include/asm/checksum.h b/arch/s390/include/asm/checksum.h
new file mode 100644
index 00000000000..d5a8e7c1477
--- /dev/null
+++ b/arch/s390/include/asm/checksum.h
@@ -0,0 +1,166 @@
+#ifndef _S390_CHECKSUM_H
+#define _S390_CHECKSUM_H
+
+/*
+ *  include/asm-s390/checksum.h
+ *    S390 fast network checksum routines
+ *    see also arch/S390/lib/checksum.c
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Ulrich Hild        (first version)
+ *               Martin Schwidefsky (heavily optimized CKSM version)
+ *               D.J. Barrow        (third attempt) 
+ */
+
+#include <asm/uaccess.h>
+
+/*
+ * computes the checksum of a memory block at buff, length len,
+ * and adds in "sum" (32-bit)
+ *
+ * returns a 32-bit number suitable for feeding into itself
+ * or csum_tcpudp_magic
+ *
+ * this function must be called with even lengths, except
+ * for the last fragment, which may be odd
+ *
+ * it's best to have buff aligned on a 32-bit boundary
+ */
+static inline __wsum
+csum_partial(const void *buff, int len, __wsum sum)
+{
+	register unsigned long reg2 asm("2") = (unsigned long) buff;
+	register unsigned long reg3 asm("3") = (unsigned long) len;
+
+	asm volatile(
+		"0:	cksm	%0,%1\n"	/* do checksum on longs */
+		"	jo	0b\n"
+		: "+d" (sum), "+d" (reg2), "+d" (reg3) : : "cc", "memory");
+	return sum;
+}
+
+/*
+ * the same as csum_partial_copy, but copies from user space.
+ *
+ * here even more important to align src and dst on a 32-bit (or even
+ * better 64-bit) boundary
+ *
+ * Copy from userspace and compute checksum.  If we catch an exception
+ * then zero the rest of the buffer.
+ */
+static inline __wsum
+csum_partial_copy_from_user(const void __user *src, void *dst,
+                                          int len, __wsum sum,
+                                          int *err_ptr)
+{
+	int missing;
+
+	missing = copy_from_user(dst, src, len);
+	if (missing) {
+		memset(dst + len - missing, 0, missing);
+		*err_ptr = -EFAULT;
+	}
+		
+	return csum_partial(dst, len, sum);
+}
+
+
+static inline __wsum
+csum_partial_copy_nocheck (const void *src, void *dst, int len, __wsum sum)
+{
+        memcpy(dst,src,len);
+	return csum_partial(dst, len, sum);
+}
+
+/*
+ *      Fold a partial checksum without adding pseudo headers
+ */
+static inline __sum16 csum_fold(__wsum sum)
+{
+#ifndef __s390x__
+	register_pair rp;
+
+	asm volatile(
+		"	slr	%N1,%N1\n"	/* %0 = H L */
+		"	lr	%1,%0\n"	/* %0 = H L, %1 = H L 0 0 */
+		"	srdl	%1,16\n"	/* %0 = H L, %1 = 0 H L 0 */
+		"	alr	%1,%N1\n"	/* %0 = H L, %1 = L H L 0 */
+		"	alr	%0,%1\n"	/* %0 = H+L+C L+H */
+		"	srl	%0,16\n"	/* %0 = H+L+C */
+		: "+&d" (sum), "=d" (rp) : : "cc");
+#else /* __s390x__ */
+	asm volatile(
+		"	sr	3,3\n"		/* %0 = H*65536 + L */
+		"	lr	2,%0\n"		/* %0 = H L, 2/3 = H L / 0 0 */
+		"	srdl	2,16\n"		/* %0 = H L, 2/3 = 0 H / L 0 */
+		"	alr	2,3\n"		/* %0 = H L, 2/3 = L H / L 0 */
+		"	alr	%0,2\n"		/* %0 = H+L+C L+H */
+		"	srl	%0,16\n"	/* %0 = H+L+C */
+		: "+&d" (sum) : : "cc", "2", "3");
+#endif /* __s390x__ */
+	return (__force __sum16) ~sum;
+}
+
+/*
+ *	This is a version of ip_compute_csum() optimized for IP headers,
+ *	which always checksum on 4 octet boundaries.
+ *
+ */
+static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
+{
+	return csum_fold(csum_partial(iph, ihl*4, 0));
+}
+
+/*
+ * computes the checksum of the TCP/UDP pseudo-header
+ * returns a 32-bit checksum
+ */
+static inline __wsum
+csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
+                   unsigned short len, unsigned short proto,
+                   __wsum sum)
+{
+	__u32 csum = (__force __u32)sum;
+
+	csum += (__force __u32)saddr;
+	if (csum < (__force __u32)saddr)
+		csum++;
+
+	csum += (__force __u32)daddr;
+	if (csum < (__force __u32)daddr)
+		csum++;
+
+	csum += len + proto;
+	if (csum < len + proto)
+		csum++;
+
+	return (__force __wsum)csum;
+}
+
+/*
+ * computes the checksum of the TCP/UDP pseudo-header
+ * returns a 16-bit checksum, already complemented
+ */
+
+static inline __sum16
+csum_tcpudp_magic(__be32 saddr, __be32 daddr,
+                  unsigned short len, unsigned short proto,
+                  __wsum sum)
+{
+	return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
+}
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+
+static inline __sum16 ip_compute_csum(const void *buff, int len)
+{
+	return csum_fold(csum_partial(buff, len, 0));
+}
+
+#endif /* _S390_CHECKSUM_H */
+
+
diff --git a/arch/s390/include/asm/chpid.h b/arch/s390/include/asm/chpid.h
new file mode 100644
index 00000000000..dfe3c7f3439
--- /dev/null
+++ b/arch/s390/include/asm/chpid.h
@@ -0,0 +1,56 @@
+/*
+ *  drivers/s390/cio/chpid.h
+ *
+ *    Copyright IBM Corp. 2007
+ *    Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
+ */
+
+#ifndef _ASM_S390_CHPID_H
+#define _ASM_S390_CHPID_H _ASM_S390_CHPID_H
+
+#include <linux/string.h>
+#include <asm/types.h>
+
+#define __MAX_CHPID 255
+
+struct chp_id {
+	u8 reserved1;
+	u8 cssid;
+	u8 reserved2;
+	u8 id;
+} __attribute__((packed));
+
+#ifdef __KERNEL__
+#include <asm/cio.h>
+
+static inline void chp_id_init(struct chp_id *chpid)
+{
+	memset(chpid, 0, sizeof(struct chp_id));
+}
+
+static inline int chp_id_is_equal(struct chp_id *a, struct chp_id *b)
+{
+	return (a->id == b->id) && (a->cssid == b->cssid);
+}
+
+static inline void chp_id_next(struct chp_id *chpid)
+{
+	if (chpid->id < __MAX_CHPID)
+		chpid->id++;
+	else {
+		chpid->id = 0;
+		chpid->cssid++;
+	}
+}
+
+static inline int chp_id_is_valid(struct chp_id *chpid)
+{
+	return (chpid->cssid <= __MAX_CSSID);
+}
+
+
+#define chp_id_for_each(c) \
+	for (chp_id_init(c); chp_id_is_valid(c); chp_id_next(c))
+#endif /* __KERNEL */
+
+#endif /* _ASM_S390_CHPID_H */
diff --git a/arch/s390/include/asm/chsc.h b/arch/s390/include/asm/chsc.h
new file mode 100644
index 00000000000..d38d0cf62d4
--- /dev/null
+++ b/arch/s390/include/asm/chsc.h
@@ -0,0 +1,127 @@
+/*
+ * ioctl interface for /dev/chsc
+ *
+ * Copyright 2008 IBM Corp.
+ * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
+ */
+
+#ifndef _ASM_CHSC_H
+#define _ASM_CHSC_H
+
+#include <asm/chpid.h>
+#include <asm/schid.h>
+
+struct chsc_async_header {
+	__u16 length;
+	__u16 code;
+	__u32 cmd_dependend;
+	__u32 key : 4;
+	__u32 : 28;
+	struct subchannel_id sid;
+} __attribute__ ((packed));
+
+struct chsc_async_area {
+	struct chsc_async_header header;
+	__u8 data[PAGE_SIZE - 16 /* size of chsc_async_header */];
+} __attribute__ ((packed));
+
+
+struct chsc_response_struct {
+	__u16 length;
+	__u16 code;
+	__u32 parms;
+	__u8 data[PAGE_SIZE - 8];
+} __attribute__ ((packed));
+
+struct chsc_chp_cd {
+	struct chp_id chpid;
+	int m;
+	int fmt;
+	struct chsc_response_struct cpcb;
+};
+
+struct chsc_cu_cd {
+	__u16 cun;
+	__u8 cssid;
+	int m;
+	int fmt;
+	struct chsc_response_struct cucb;
+};
+
+struct chsc_sch_cud {
+	struct subchannel_id schid;
+	int fmt;
+	struct chsc_response_struct scub;
+};
+
+struct conf_id {
+	int m;
+	__u8 cssid;
+	__u8 ssid;
+};
+
+struct chsc_conf_info {
+	struct conf_id id;
+	int fmt;
+	struct chsc_response_struct scid;
+};
+
+struct ccl_parm_chpid {
+	int m;
+	struct chp_id chp;
+};
+
+struct ccl_parm_cssids {
+	__u8 f_cssid;
+	__u8 l_cssid;
+};
+
+struct chsc_comp_list {
+	struct {
+		enum {
+			CCL_CU_ON_CHP = 1,
+			CCL_CHP_TYPE_CAP = 2,
+			CCL_CSS_IMG = 4,
+			CCL_CSS_IMG_CONF_CHAR = 5,
+			CCL_IOP_CHP = 6,
+		} ctype;
+		int fmt;
+		struct ccl_parm_chpid chpid;
+		struct ccl_parm_cssids cssids;
+	} req;
+	struct chsc_response_struct sccl;
+};
+
+struct chsc_dcal {
+	struct {
+		enum {
+			DCAL_CSS_IID_PN = 4,
+		} atype;
+		__u32 list_parm[2];
+		int fmt;
+	} req;
+	struct chsc_response_struct sdcal;
+};
+
+struct chsc_cpd_info {
+	struct chp_id chpid;
+	int m;
+	int fmt;
+	int rfmt;
+	int c;
+	struct chsc_response_struct chpdb;
+};
+
+#define CHSC_IOCTL_MAGIC 'c'
+
+#define CHSC_START _IOWR(CHSC_IOCTL_MAGIC, 0x81, struct chsc_async_area)
+#define CHSC_INFO_CHANNEL_PATH _IOWR(CHSC_IOCTL_MAGIC, 0x82, \
+				    struct chsc_chp_cd)
+#define CHSC_INFO_CU _IOWR(CHSC_IOCTL_MAGIC, 0x83, struct chsc_cu_cd)
+#define CHSC_INFO_SCH_CU _IOWR(CHSC_IOCTL_MAGIC, 0x84, struct chsc_sch_cud)
+#define CHSC_INFO_CI _IOWR(CHSC_IOCTL_MAGIC, 0x85, struct chsc_conf_info)
+#define CHSC_INFO_CCL _IOWR(CHSC_IOCTL_MAGIC, 0x86, struct chsc_comp_list)
+#define CHSC_INFO_CPD _IOWR(CHSC_IOCTL_MAGIC, 0x87, struct chsc_cpd_info)
+#define CHSC_INFO_DCAL _IOWR(CHSC_IOCTL_MAGIC, 0x88, struct chsc_dcal)
+
+#endif
diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h
new file mode 100644
index 00000000000..6dccb071aec
--- /dev/null
+++ b/arch/s390/include/asm/cio.h
@@ -0,0 +1,514 @@
+/*
+ *  include/asm-s390/cio.h
+ *  include/asm-s390x/cio.h
+ *
+ * Common interface for I/O on S/390
+ */
+#ifndef _ASM_S390_CIO_H_
+#define _ASM_S390_CIO_H_
+
+#include <linux/spinlock.h>
+#include <asm/types.h>
+
+#ifdef __KERNEL__
+
+#define LPM_ANYPATH 0xff
+#define __MAX_CSSID 0
+
+/**
+ * struct cmd_scsw - command-mode subchannel status word
+ * @key: subchannel key
+ * @sctl: suspend control
+ * @eswf: esw format
+ * @cc: deferred condition code
+ * @fmt: format
+ * @pfch: prefetch
+ * @isic: initial-status interruption control
+ * @alcc: address-limit checking control
+ * @ssi: suppress-suspended interruption
+ * @zcc: zero condition code
+ * @ectl: extended control
+ * @pno: path not operational
+ * @res: reserved
+ * @fctl: function control
+ * @actl: activity control
+ * @stctl: status control
+ * @cpa: channel program address
+ * @dstat: device status
+ * @cstat: subchannel status
+ * @count: residual count
+ */
+struct cmd_scsw {
+	__u32 key  : 4;
+	__u32 sctl : 1;
+	__u32 eswf : 1;
+	__u32 cc   : 2;
+	__u32 fmt  : 1;
+	__u32 pfch : 1;
+	__u32 isic : 1;
+	__u32 alcc : 1;
+	__u32 ssi  : 1;
+	__u32 zcc  : 1;
+	__u32 ectl : 1;
+	__u32 pno  : 1;
+	__u32 res  : 1;
+	__u32 fctl : 3;
+	__u32 actl : 7;
+	__u32 stctl : 5;
+	__u32 cpa;
+	__u32 dstat : 8;
+	__u32 cstat : 8;
+	__u32 count : 16;
+} __attribute__ ((packed));
+
+/**
+ * struct tm_scsw - transport-mode subchannel status word
+ * @key: subchannel key
+ * @eswf: esw format
+ * @cc: deferred condition code
+ * @fmt: format
+ * @x: IRB-format control
+ * @q: interrogate-complete
+ * @ectl: extended control
+ * @pno: path not operational
+ * @fctl: function control
+ * @actl: activity control
+ * @stctl: status control
+ * @tcw: TCW address
+ * @dstat: device status
+ * @cstat: subchannel status
+ * @fcxs: FCX status
+ * @schxs: subchannel-extended status
+ */
+struct tm_scsw {
+	u32 key:4;
+	u32 :1;
+	u32 eswf:1;
+	u32 cc:2;
+	u32 fmt:3;
+	u32 x:1;
+	u32 q:1;
+	u32 :1;
+	u32 ectl:1;
+	u32 pno:1;
+	u32 :1;
+	u32 fctl:3;
+	u32 actl:7;
+	u32 stctl:5;
+	u32 tcw;
+	u32 dstat:8;
+	u32 cstat:8;
+	u32 fcxs:8;
+	u32 schxs:8;
+} __attribute__ ((packed));
+
+/**
+ * union scsw - subchannel status word
+ * @cmd: command-mode SCSW
+ * @tm: transport-mode SCSW
+ */
+union scsw {
+	struct cmd_scsw cmd;
+	struct tm_scsw tm;
+} __attribute__ ((packed));
+
+int scsw_is_tm(union scsw *scsw);
+u32 scsw_key(union scsw *scsw);
+u32 scsw_eswf(union scsw *scsw);
+u32 scsw_cc(union scsw *scsw);
+u32 scsw_ectl(union scsw *scsw);
+u32 scsw_pno(union scsw *scsw);
+u32 scsw_fctl(union scsw *scsw);
+u32 scsw_actl(union scsw *scsw);
+u32 scsw_stctl(union scsw *scsw);
+u32 scsw_dstat(union scsw *scsw);
+u32 scsw_cstat(union scsw *scsw);
+int scsw_is_solicited(union scsw *scsw);
+int scsw_is_valid_key(union scsw *scsw);
+int scsw_is_valid_eswf(union scsw *scsw);
+int scsw_is_valid_cc(union scsw *scsw);
+int scsw_is_valid_ectl(union scsw *scsw);
+int scsw_is_valid_pno(union scsw *scsw);
+int scsw_is_valid_fctl(union scsw *scsw);
+int scsw_is_valid_actl(union scsw *scsw);
+int scsw_is_valid_stctl(union scsw *scsw);
+int scsw_is_valid_dstat(union scsw *scsw);
+int scsw_is_valid_cstat(union scsw *scsw);
+int scsw_cmd_is_valid_key(union scsw *scsw);
+int scsw_cmd_is_valid_sctl(union scsw *scsw);
+int scsw_cmd_is_valid_eswf(union scsw *scsw);
+int scsw_cmd_is_valid_cc(union scsw *scsw);
+int scsw_cmd_is_valid_fmt(union scsw *scsw);
+int scsw_cmd_is_valid_pfch(union scsw *scsw);
+int scsw_cmd_is_valid_isic(union scsw *scsw);
+int scsw_cmd_is_valid_alcc(union scsw *scsw);
+int scsw_cmd_is_valid_ssi(union scsw *scsw);
+int scsw_cmd_is_valid_zcc(union scsw *scsw);
+int scsw_cmd_is_valid_ectl(union scsw *scsw);
+int scsw_cmd_is_valid_pno(union scsw *scsw);
+int scsw_cmd_is_valid_fctl(union scsw *scsw);
+int scsw_cmd_is_valid_actl(union scsw *scsw);
+int scsw_cmd_is_valid_stctl(union scsw *scsw);
+int scsw_cmd_is_valid_dstat(union scsw *scsw);
+int scsw_cmd_is_valid_cstat(union scsw *scsw);
+int scsw_cmd_is_solicited(union scsw *scsw);
+int scsw_tm_is_valid_key(union scsw *scsw);
+int scsw_tm_is_valid_eswf(union scsw *scsw);
+int scsw_tm_is_valid_cc(union scsw *scsw);
+int scsw_tm_is_valid_fmt(union scsw *scsw);
+int scsw_tm_is_valid_x(union scsw *scsw);
+int scsw_tm_is_valid_q(union scsw *scsw);
+int scsw_tm_is_valid_ectl(union scsw *scsw);
+int scsw_tm_is_valid_pno(union scsw *scsw);
+int scsw_tm_is_valid_fctl(union scsw *scsw);
+int scsw_tm_is_valid_actl(union scsw *scsw);
+int scsw_tm_is_valid_stctl(union scsw *scsw);
+int scsw_tm_is_valid_dstat(union scsw *scsw);
+int scsw_tm_is_valid_cstat(union scsw *scsw);
+int scsw_tm_is_valid_fcxs(union scsw *scsw);
+int scsw_tm_is_valid_schxs(union scsw *scsw);
+int scsw_tm_is_solicited(union scsw *scsw);
+
+#define SCSW_FCTL_CLEAR_FUNC	 0x1
+#define SCSW_FCTL_HALT_FUNC	 0x2
+#define SCSW_FCTL_START_FUNC	 0x4
+
+#define SCSW_ACTL_SUSPENDED	 0x1
+#define SCSW_ACTL_DEVACT	 0x2
+#define SCSW_ACTL_SCHACT	 0x4
+#define SCSW_ACTL_CLEAR_PEND	 0x8
+#define SCSW_ACTL_HALT_PEND	 0x10
+#define SCSW_ACTL_START_PEND	 0x20
+#define SCSW_ACTL_RESUME_PEND	 0x40
+
+#define SCSW_STCTL_STATUS_PEND	 0x1
+#define SCSW_STCTL_SEC_STATUS	 0x2
+#define SCSW_STCTL_PRIM_STATUS	 0x4
+#define SCSW_STCTL_INTER_STATUS	 0x8
+#define SCSW_STCTL_ALERT_STATUS	 0x10
+
+#define DEV_STAT_ATTENTION	 0x80
+#define DEV_STAT_STAT_MOD	 0x40
+#define DEV_STAT_CU_END		 0x20
+#define DEV_STAT_BUSY		 0x10
+#define DEV_STAT_CHN_END	 0x08
+#define DEV_STAT_DEV_END	 0x04
+#define DEV_STAT_UNIT_CHECK	 0x02
+#define DEV_STAT_UNIT_EXCEP	 0x01
+
+#define SCHN_STAT_PCI		 0x80
+#define SCHN_STAT_INCORR_LEN	 0x40
+#define SCHN_STAT_PROG_CHECK	 0x20
+#define SCHN_STAT_PROT_CHECK	 0x10
+#define SCHN_STAT_CHN_DATA_CHK	 0x08
+#define SCHN_STAT_CHN_CTRL_CHK	 0x04
+#define SCHN_STAT_INTF_CTRL_CHK	 0x02
+#define SCHN_STAT_CHAIN_CHECK	 0x01
+
+/*
+ * architectured values for first sense byte
+ */
+#define SNS0_CMD_REJECT		0x80
+#define SNS_CMD_REJECT		SNS0_CMD_REJEC
+#define SNS0_INTERVENTION_REQ	0x40
+#define SNS0_BUS_OUT_CHECK	0x20
+#define SNS0_EQUIPMENT_CHECK	0x10
+#define SNS0_DATA_CHECK		0x08
+#define SNS0_OVERRUN		0x04
+#define SNS0_INCOMPL_DOMAIN	0x01
+
+/*
+ * architectured values for second sense byte
+ */
+#define SNS1_PERM_ERR		0x80
+#define SNS1_INV_TRACK_FORMAT	0x40
+#define SNS1_EOC		0x20
+#define SNS1_MESSAGE_TO_OPER	0x10
+#define SNS1_NO_REC_FOUND	0x08
+#define SNS1_FILE_PROTECTED	0x04
+#define SNS1_WRITE_INHIBITED	0x02
+#define SNS1_INPRECISE_END	0x01
+
+/*
+ * architectured values for third sense byte
+ */
+#define SNS2_REQ_INH_WRITE	0x80
+#define SNS2_CORRECTABLE	0x40
+#define SNS2_FIRST_LOG_ERR	0x20
+#define SNS2_ENV_DATA_PRESENT	0x10
+#define SNS2_INPRECISE_END	0x04
+
+/**
+ * struct ccw1 - channel command word
+ * @cmd_code: command code
+ * @flags: flags, like IDA adressing, etc.
+ * @count: byte count
+ * @cda: data address
+ *
+ * The ccw is the basic structure to build channel programs that perform
+ * operations with the device or the control unit. Only Format-1 channel
+ * command words are supported.
+ */
+struct ccw1 {
+	__u8  cmd_code;
+	__u8  flags;
+	__u16 count;
+	__u32 cda;
+} __attribute__ ((packed,aligned(8)));
+
+#define CCW_FLAG_DC		0x80
+#define CCW_FLAG_CC		0x40
+#define CCW_FLAG_SLI		0x20
+#define CCW_FLAG_SKIP		0x10
+#define CCW_FLAG_PCI		0x08
+#define CCW_FLAG_IDA		0x04
+#define CCW_FLAG_SUSPEND	0x02
+
+#define CCW_CMD_READ_IPL	0x02
+#define CCW_CMD_NOOP		0x03
+#define CCW_CMD_BASIC_SENSE	0x04
+#define CCW_CMD_TIC		0x08
+#define CCW_CMD_STLCK           0x14
+#define CCW_CMD_SENSE_PGID	0x34
+#define CCW_CMD_SUSPEND_RECONN	0x5B
+#define CCW_CMD_RDC		0x64
+#define CCW_CMD_RELEASE		0x94
+#define CCW_CMD_SET_PGID	0xAF
+#define CCW_CMD_SENSE_ID	0xE4
+#define CCW_CMD_DCTL		0xF3
+
+#define SENSE_MAX_COUNT		0x20
+
+/**
+ * struct erw - extended report word
+ * @res0: reserved
+ * @auth: authorization check
+ * @pvrf: path-verification-required flag
+ * @cpt: channel-path timeout
+ * @fsavf: failing storage address validity flag
+ * @cons: concurrent sense
+ * @scavf: secondary ccw address validity flag
+ * @fsaf: failing storage address format
+ * @scnt: sense count, if @cons == %1
+ * @res16: reserved
+ */
+struct erw {
+	__u32 res0  : 3;
+	__u32 auth  : 1;
+	__u32 pvrf  : 1;
+	__u32 cpt   : 1;
+	__u32 fsavf : 1;
+	__u32 cons  : 1;
+	__u32 scavf : 1;
+	__u32 fsaf  : 1;
+	__u32 scnt  : 6;
+	__u32 res16 : 16;
+} __attribute__ ((packed));
+
+/**
+ * struct sublog - subchannel logout area
+ * @res0: reserved
+ * @esf: extended status flags
+ * @lpum: last path used mask
+ * @arep: ancillary report
+ * @fvf: field-validity flags
+ * @sacc: storage access code
+ * @termc: termination code
+ * @devsc: device-status check
+ * @serr: secondary error
+ * @ioerr: i/o-error alert
+ * @seqc: sequence code
+ */
+struct sublog {
+	__u32 res0  : 1;
+	__u32 esf   : 7;
+	__u32 lpum  : 8;
+	__u32 arep  : 1;
+	__u32 fvf   : 5;
+	__u32 sacc  : 2;
+	__u32 termc : 2;
+	__u32 devsc : 1;
+	__u32 serr  : 1;
+	__u32 ioerr : 1;
+	__u32 seqc  : 3;
+} __attribute__ ((packed));
+
+/**
+ * struct esw0 - Format 0 Extended Status Word (ESW)
+ * @sublog: subchannel logout
+ * @erw: extended report word
+ * @faddr: failing storage address
+ * @saddr: secondary ccw address
+ */
+struct esw0 {
+	struct sublog sublog;
+	struct erw erw;
+	__u32  faddr[2];
+	__u32  saddr;
+} __attribute__ ((packed));
+
+/**
+ * struct esw1 - Format 1 Extended Status Word (ESW)
+ * @zero0: reserved zeros
+ * @lpum: last path used mask
+ * @zero16: reserved zeros
+ * @erw: extended report word
+ * @zeros: three fullwords of zeros
+ */
+struct esw1 {
+	__u8  zero0;
+	__u8  lpum;
+	__u16 zero16;
+	struct erw erw;
+	__u32 zeros[3];
+} __attribute__ ((packed));
+
+/**
+ * struct esw2 - Format 2 Extended Status Word (ESW)
+ * @zero0: reserved zeros
+ * @lpum: last path used mask
+ * @dcti: device-connect-time interval
+ * @erw: extended report word
+ * @zeros: three fullwords of zeros
+ */
+struct esw2 {
+	__u8  zero0;
+	__u8  lpum;
+	__u16 dcti;
+	struct erw erw;
+	__u32 zeros[3];
+} __attribute__ ((packed));
+
+/**
+ * struct esw3 - Format 3 Extended Status Word (ESW)
+ * @zero0: reserved zeros
+ * @lpum: last path used mask
+ * @res: reserved
+ * @erw: extended report word
+ * @zeros: three fullwords of zeros
+ */
+struct esw3 {
+	__u8  zero0;
+	__u8  lpum;
+	__u16 res;
+	struct erw erw;
+	__u32 zeros[3];
+} __attribute__ ((packed));
+
+/**
+ * struct irb - interruption response block
+ * @scsw: subchannel status word
+ * @esw: extened status word, 4 formats
+ * @ecw: extended control word
+ *
+ * The irb that is handed to the device driver when an interrupt occurs. For
+ * solicited interrupts, the common I/O layer already performs checks whether
+ * a field is valid; a field not being valid is always passed as %0.
+ * If a unit check occured, @ecw may contain sense data; this is retrieved
+ * by the common I/O layer itself if the device doesn't support concurrent
+ * sense (so that the device driver never needs to perform basic sene itself).
+ * For unsolicited interrupts, the irb is passed as-is (expect for sense data,
+ * if applicable).
+ */
+struct irb {
+	union scsw scsw;
+	union {
+		struct esw0 esw0;
+		struct esw1 esw1;
+		struct esw2 esw2;
+		struct esw3 esw3;
+	} esw;
+	__u8   ecw[32];
+} __attribute__ ((packed,aligned(4)));
+
+/**
+ * struct ciw - command information word  (CIW) layout
+ * @et: entry type
+ * @reserved: reserved bits
+ * @ct: command type
+ * @cmd: command code
+ * @count: command count
+ */
+struct ciw {
+	__u32 et       :  2;
+	__u32 reserved :  2;
+	__u32 ct       :  4;
+	__u32 cmd      :  8;
+	__u32 count    : 16;
+} __attribute__ ((packed));
+
+#define CIW_TYPE_RCD	0x0    	/* read configuration data */
+#define CIW_TYPE_SII	0x1    	/* set interface identifier */
+#define CIW_TYPE_RNI	0x2    	/* read node identifier */
+
+/*
+ * Flags used as input parameters for do_IO()
+ */
+#define DOIO_ALLOW_SUSPEND	 0x0001 /* allow for channel prog. suspend */
+#define DOIO_DENY_PREFETCH	 0x0002 /* don't allow for CCW prefetch */
+#define DOIO_SUPPRESS_INTER	 0x0004 /* suppress intermediate inter. */
+					/* ... for suspended CCWs */
+/* Device or subchannel gone. */
+#define CIO_GONE       0x0001
+/* No path to device. */
+#define CIO_NO_PATH    0x0002
+/* Device has appeared. */
+#define CIO_OPER       0x0004
+/* Sick revalidation of device. */
+#define CIO_REVALIDATE 0x0008
+
+/**
+ * struct ccw_dev_id - unique identifier for ccw devices
+ * @ssid: subchannel set id
+ * @devno: device number
+ *
+ * This structure is not directly based on any hardware structure. The
+ * hardware identifies a device by its device number and its subchannel,
+ * which is in turn identified by its id. In order to get a unique identifier
+ * for ccw devices across subchannel sets, @struct ccw_dev_id has been
+ * introduced.
+ */
+struct ccw_dev_id {
+	u8 ssid;
+	u16 devno;
+};
+
+/**
+ * ccw_device_id_is_equal() - compare two ccw_dev_ids
+ * @dev_id1: a ccw_dev_id
+ * @dev_id2: another ccw_dev_id
+ * Returns:
+ *  %1 if the two structures are equal field-by-field,
+ *  %0 if not.
+ * Context:
+ *  any
+ */
+static inline int ccw_dev_id_is_equal(struct ccw_dev_id *dev_id1,
+				      struct ccw_dev_id *dev_id2)
+{
+	if ((dev_id1->ssid == dev_id2->ssid) &&
+	    (dev_id1->devno == dev_id2->devno))
+		return 1;
+	return 0;
+}
+
+extern void wait_cons_dev(void);
+
+extern void css_schedule_reprobe(void);
+
+extern void reipl_ccw_dev(struct ccw_dev_id *id);
+
+struct cio_iplinfo {
+	u16 devno;
+	int is_qdio;
+};
+
+extern int cio_get_iplinfo(struct cio_iplinfo *iplinfo);
+
+/* Function from drivers/s390/cio/chsc.c */
+int chsc_sstpc(void *page, unsigned int op, u16 ctrl);
+int chsc_sstpi(void *page, void *result, size_t size);
+
+#endif
+
+#endif
diff --git a/arch/s390/include/asm/cmb.h b/arch/s390/include/asm/cmb.h
new file mode 100644
index 00000000000..50196857d27
--- /dev/null
+++ b/arch/s390/include/asm/cmb.h
@@ -0,0 +1,58 @@
+#ifndef S390_CMB_H
+#define S390_CMB_H
+/**
+ * struct cmbdata - channel measurement block data for user space
+ * @size: size of the stored data
+ * @elapsed_time: time since last sampling
+ * @ssch_rsch_count: number of ssch and rsch
+ * @sample_count: number of samples
+ * @device_connect_time: time of device connect
+ * @function_pending_time: time of function pending
+ * @device_disconnect_time: time of device disconnect
+ * @control_unit_queuing_time: time of control unit queuing
+ * @device_active_only_time: time of device active only
+ * @device_busy_time: time of device busy (ext. format)
+ * @initial_command_response_time: initial command response time (ext. format)
+ *
+ * All values are stored as 64 bit for simplicity, especially
+ * in 32 bit emulation mode. All time values are normalized to
+ * nanoseconds.
+ * Currently, two formats are known, which differ by the size of
+ * this structure, i.e. the last two members are only set when
+ * the extended channel measurement facility (first shipped in
+ * z990 machines) is activated.
+ * Potentially, more fields could be added, which would result in a
+ * new ioctl number.
+ */
+struct cmbdata {
+	__u64 size;
+	__u64 elapsed_time;
+ /* basic and exended format: */
+	__u64 ssch_rsch_count;
+	__u64 sample_count;
+	__u64 device_connect_time;
+	__u64 function_pending_time;
+	__u64 device_disconnect_time;
+	__u64 control_unit_queuing_time;
+	__u64 device_active_only_time;
+ /* extended format only: */
+	__u64 device_busy_time;
+	__u64 initial_command_response_time;
+};
+
+/* enable channel measurement */
+#define BIODASDCMFENABLE	_IO(DASD_IOCTL_LETTER, 32)
+/* enable channel measurement */
+#define BIODASDCMFDISABLE	_IO(DASD_IOCTL_LETTER, 33)
+/* read channel measurement data */
+#define BIODASDREADALLCMB	_IOWR(DASD_IOCTL_LETTER, 33, struct cmbdata)
+
+#ifdef __KERNEL__
+struct ccw_device;
+extern int enable_cmf(struct ccw_device *cdev);
+extern int disable_cmf(struct ccw_device *cdev);
+extern u64 cmf_read(struct ccw_device *cdev, int index);
+extern int cmf_readall(struct ccw_device *cdev, struct cmbdata *data);
+
+#endif /* __KERNEL__ */
+#endif /* S390_CMB_H */
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
new file mode 100644
index 00000000000..de065b32381
--- /dev/null
+++ b/arch/s390/include/asm/compat.h
@@ -0,0 +1,233 @@
+#ifndef _ASM_S390X_COMPAT_H
+#define _ASM_S390X_COMPAT_H
+/*
+ * Architecture specific compatibility types
+ */
+#include <linux/types.h>
+#include <linux/sched.h>
+
+#define PSW32_MASK_PER		0x40000000UL
+#define PSW32_MASK_DAT		0x04000000UL
+#define PSW32_MASK_IO		0x02000000UL
+#define PSW32_MASK_EXT		0x01000000UL
+#define PSW32_MASK_KEY		0x00F00000UL
+#define PSW32_MASK_MCHECK	0x00040000UL
+#define PSW32_MASK_WAIT		0x00020000UL
+#define PSW32_MASK_PSTATE	0x00010000UL
+#define PSW32_MASK_ASC		0x0000C000UL
+#define PSW32_MASK_CC		0x00003000UL
+#define PSW32_MASK_PM		0x00000f00UL
+
+#define PSW32_ADDR_AMODE31	0x80000000UL
+#define PSW32_ADDR_INSN		0x7FFFFFFFUL
+
+#define PSW32_BASE_BITS		0x00080000UL
+
+#define PSW32_ASC_PRIMARY	0x00000000UL
+#define PSW32_ASC_ACCREG	0x00004000UL
+#define PSW32_ASC_SECONDARY	0x00008000UL
+#define PSW32_ASC_HOME		0x0000C000UL
+
+#define PSW32_MASK_MERGE(CURRENT,NEW) \
+	(((CURRENT) & ~(PSW32_MASK_CC|PSW32_MASK_PM)) | \
+	 ((NEW) & (PSW32_MASK_CC|PSW32_MASK_PM)))
+
+extern long psw32_user_bits;
+
+#define COMPAT_USER_HZ	100
+
+typedef u32		compat_size_t;
+typedef s32		compat_ssize_t;
+typedef s32		compat_time_t;
+typedef s32		compat_clock_t;
+typedef s32		compat_pid_t;
+typedef u16		__compat_uid_t;
+typedef u16		__compat_gid_t;
+typedef u32		__compat_uid32_t;
+typedef u32		__compat_gid32_t;
+typedef u16		compat_mode_t;
+typedef u32		compat_ino_t;
+typedef u16		compat_dev_t;
+typedef s32		compat_off_t;
+typedef s64		compat_loff_t;
+typedef u16		compat_nlink_t;
+typedef u16		compat_ipc_pid_t;
+typedef s32		compat_daddr_t;
+typedef u32		compat_caddr_t;
+typedef __kernel_fsid_t	compat_fsid_t;
+typedef s32		compat_key_t;
+typedef s32		compat_timer_t;
+
+typedef s32		compat_int_t;
+typedef s32		compat_long_t;
+typedef s64		compat_s64;
+typedef u32		compat_uint_t;
+typedef u32		compat_ulong_t;
+typedef u64		compat_u64;
+
+struct compat_timespec {
+	compat_time_t	tv_sec;
+	s32		tv_nsec;
+};
+
+struct compat_timeval {
+	compat_time_t	tv_sec;
+	s32		tv_usec;
+};
+
+struct compat_stat {
+	compat_dev_t	st_dev;
+	u16		__pad1;
+	compat_ino_t	st_ino;
+	compat_mode_t	st_mode;
+	compat_nlink_t	st_nlink;
+	__compat_uid_t	st_uid;
+	__compat_gid_t	st_gid;
+	compat_dev_t	st_rdev;
+	u16		__pad2;
+	u32		st_size;
+	u32		st_blksize;
+	u32		st_blocks;
+	u32		st_atime;
+	u32		st_atime_nsec;
+	u32		st_mtime;
+	u32		st_mtime_nsec;
+	u32		st_ctime;
+	u32		st_ctime_nsec;
+	u32		__unused4;
+	u32		__unused5;
+};
+
+struct compat_flock {
+	short		l_type;
+	short		l_whence;
+	compat_off_t	l_start;
+	compat_off_t	l_len;
+	compat_pid_t	l_pid;
+};
+
+#define F_GETLK64       12
+#define F_SETLK64       13
+#define F_SETLKW64      14    
+
+struct compat_flock64 {
+	short		l_type;
+	short		l_whence;
+	compat_loff_t	l_start;
+	compat_loff_t	l_len;
+	compat_pid_t	l_pid;
+};
+
+struct compat_statfs {
+	s32		f_type;
+	s32		f_bsize;
+	s32		f_blocks;
+	s32		f_bfree;
+	s32		f_bavail;
+	s32		f_files;
+	s32		f_ffree;
+	compat_fsid_t	f_fsid;
+	s32		f_namelen;
+	s32		f_frsize;
+	s32		f_spare[6];
+};
+
+#define COMPAT_RLIM_OLD_INFINITY	0x7fffffff
+#define COMPAT_RLIM_INFINITY		0xffffffff
+
+typedef u32		compat_old_sigset_t;	/* at least 32 bits */
+
+#define _COMPAT_NSIG		64
+#define _COMPAT_NSIG_BPW	32
+
+typedef u32		compat_sigset_word;
+
+#define COMPAT_OFF_T_MAX	0x7fffffff
+#define COMPAT_LOFF_T_MAX	0x7fffffffffffffffL
+
+/*
+ * A pointer passed in from user mode. This should not
+ * be used for syscall parameters, just declare them
+ * as pointers because the syscall entry code will have
+ * appropriately converted them already.
+ */
+typedef	u32		compat_uptr_t;
+
+static inline void __user *compat_ptr(compat_uptr_t uptr)
+{
+	return (void __user *)(unsigned long)(uptr & 0x7fffffffUL);
+}
+
+static inline compat_uptr_t ptr_to_compat(void __user *uptr)
+{
+	return (u32)(unsigned long)uptr;
+}
+
+static inline void __user *compat_alloc_user_space(long len)
+{
+	unsigned long stack;
+
+	stack = KSTK_ESP(current);
+	if (test_thread_flag(TIF_31BIT))
+		stack &= 0x7fffffffUL;
+	return (void __user *) (stack - len);
+}
+
+struct compat_ipc64_perm {
+	compat_key_t key;
+	__compat_uid32_t uid;
+	__compat_gid32_t gid;
+	__compat_uid32_t cuid;
+	__compat_gid32_t cgid;
+	compat_mode_t mode;
+	unsigned short __pad1;
+	unsigned short seq;
+	unsigned short __pad2;
+	unsigned int __unused1;
+	unsigned int __unused2;
+};
+
+struct compat_semid64_ds {
+	struct compat_ipc64_perm sem_perm;
+	compat_time_t  sem_otime;
+	compat_ulong_t __pad1;
+	compat_time_t  sem_ctime;
+	compat_ulong_t __pad2;
+	compat_ulong_t sem_nsems;
+	compat_ulong_t __unused1;
+	compat_ulong_t __unused2;
+};
+
+struct compat_msqid64_ds {
+	struct compat_ipc64_perm msg_perm;
+	compat_time_t   msg_stime;
+	compat_ulong_t __pad1;
+	compat_time_t   msg_rtime;
+	compat_ulong_t __pad2;
+	compat_time_t   msg_ctime;
+	compat_ulong_t __pad3;
+	compat_ulong_t msg_cbytes;
+	compat_ulong_t msg_qnum;
+	compat_ulong_t msg_qbytes;
+	compat_pid_t   msg_lspid;
+	compat_pid_t   msg_lrpid;
+	compat_ulong_t __unused1;
+	compat_ulong_t __unused2;
+};
+
+struct compat_shmid64_ds {
+	struct compat_ipc64_perm shm_perm;
+	compat_size_t  shm_segsz;
+	compat_time_t  shm_atime;
+	compat_ulong_t __pad1;
+	compat_time_t  shm_dtime;
+	compat_ulong_t __pad2;
+	compat_time_t  shm_ctime;
+	compat_ulong_t __pad3;
+	compat_pid_t   shm_cpid;
+	compat_pid_t   shm_lpid;
+	compat_ulong_t shm_nattch;
+	compat_ulong_t __unused1;
+	compat_ulong_t __unused2;
+};
+#endif /* _ASM_S390X_COMPAT_H */
diff --git a/arch/s390/include/asm/cpcmd.h b/arch/s390/include/asm/cpcmd.h
new file mode 100644
index 00000000000..48a9eab1642
--- /dev/null
+++ b/arch/s390/include/asm/cpcmd.h
@@ -0,0 +1,34 @@
+/*
+ *  arch/s390/kernel/cpcmd.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
+ *               Christian Borntraeger (cborntra@de.ibm.com),
+ */
+
+#ifndef _ASM_S390_CPCMD_H
+#define _ASM_S390_CPCMD_H
+
+/*
+ * the lowlevel function for cpcmd
+ * the caller of __cpcmd has to ensure that the response buffer is below 2 GB
+ */
+extern int __cpcmd(const char *cmd, char *response, int rlen, int *response_code);
+
+/*
+ * cpcmd is the in-kernel interface for issuing CP commands
+ *
+ * cmd:		null-terminated command string, max 240 characters
+ * response:	response buffer for VM's textual response
+ * rlen:	size of the response buffer, cpcmd will not exceed this size
+ *		but will cap the output, if its too large. Everything that
+ *		did not fit into the buffer will be silently dropped
+ * response_code: return pointer for VM's error code
+ * return value: the size of the response. The caller can check if the buffer
+ *		was large enough by comparing the return value and rlen
+ * NOTE: If the response buffer is not below 2 GB, cpcmd can sleep
+ */
+extern int cpcmd(const char *cmd, char *response, int rlen, int *response_code);
+
+#endif /* _ASM_S390_CPCMD_H */
diff --git a/arch/s390/include/asm/cpu.h b/arch/s390/include/asm/cpu.h
new file mode 100644
index 00000000000..e5a6a9ba3ad
--- /dev/null
+++ b/arch/s390/include/asm/cpu.h
@@ -0,0 +1,33 @@
+/*
+ *  include/asm-s390/cpu.h
+ *
+ *    Copyright IBM Corp. 2007
+ *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
+ */
+
+#ifndef _ASM_S390_CPU_H_
+#define _ASM_S390_CPU_H_
+
+#include <linux/types.h>
+#include <linux/percpu.h>
+#include <linux/spinlock.h>
+
+struct s390_idle_data {
+	spinlock_t lock;
+	unsigned int in_idle;
+	unsigned long long idle_count;
+	unsigned long long idle_enter;
+	unsigned long long idle_time;
+};
+
+DECLARE_PER_CPU(struct s390_idle_data, s390_idle);
+
+void s390_idle_leave(void);
+
+static inline void s390_idle_check(void)
+{
+	if ((&__get_cpu_var(s390_idle))->in_idle)
+		s390_idle_leave();
+}
+
+#endif /* _ASM_S390_CPU_H_ */
diff --git a/arch/s390/include/asm/cputime.h b/arch/s390/include/asm/cputime.h
new file mode 100644
index 00000000000..133ce054fc8
--- /dev/null
+++ b/arch/s390/include/asm/cputime.h
@@ -0,0 +1,177 @@
+/*
+ *  include/asm-s390/cputime.h
+ *
+ *  (C) Copyright IBM Corp. 2004
+ *
+ *  Author: Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#ifndef _S390_CPUTIME_H
+#define _S390_CPUTIME_H
+
+#include <asm/div64.h>
+
+/* We want to use micro-second resolution. */
+
+typedef unsigned long long cputime_t;
+typedef unsigned long long cputime64_t;
+
+#ifndef __s390x__
+
+static inline unsigned int
+__div(unsigned long long n, unsigned int base)
+{
+	register_pair rp;
+
+	rp.pair = n >> 1;
+	asm ("dr %0,%1" : "+d" (rp) : "d" (base >> 1));
+	return rp.subreg.odd;
+}
+
+#else /* __s390x__ */
+
+static inline unsigned int
+__div(unsigned long long n, unsigned int base)
+{
+	return n / base;
+}
+
+#endif /* __s390x__ */
+
+#define cputime_zero			(0ULL)
+#define cputime_max			((~0UL >> 1) - 1)
+#define cputime_add(__a, __b)		((__a) +  (__b))
+#define cputime_sub(__a, __b)		((__a) -  (__b))
+#define cputime_div(__a, __n) ({		\
+	unsigned long long __div = (__a);	\
+	do_div(__div,__n);			\
+	__div;					\
+})
+#define cputime_halve(__a)		((__a) >> 1)
+#define cputime_eq(__a, __b)		((__a) == (__b))
+#define cputime_gt(__a, __b)		((__a) >  (__b))
+#define cputime_ge(__a, __b)		((__a) >= (__b))
+#define cputime_lt(__a, __b)		((__a) <  (__b))
+#define cputime_le(__a, __b)		((__a) <= (__b))
+#define cputime_to_jiffies(__ct)	(__div((__ct), 1000000 / HZ))
+#define cputime_to_scaled(__ct)		(__ct)
+#define jiffies_to_cputime(__hz)	((cputime_t)(__hz) * (1000000 / HZ))
+
+#define cputime64_zero			(0ULL)
+#define cputime64_add(__a, __b)		((__a) + (__b))
+#define cputime_to_cputime64(__ct)	(__ct)
+
+static inline u64
+cputime64_to_jiffies64(cputime64_t cputime)
+{
+	do_div(cputime, 1000000 / HZ);
+	return cputime;
+}
+
+/*
+ * Convert cputime to milliseconds and back.
+ */
+static inline unsigned int
+cputime_to_msecs(const cputime_t cputime)
+{
+	return __div(cputime, 1000);
+}
+
+static inline cputime_t
+msecs_to_cputime(const unsigned int m)
+{
+	return (cputime_t) m * 1000;
+}
+
+/*
+ * Convert cputime to milliseconds and back.
+ */
+static inline unsigned int
+cputime_to_secs(const cputime_t cputime)
+{
+	return __div(cputime, 1000000);
+}
+
+static inline cputime_t
+secs_to_cputime(const unsigned int s)
+{
+	return (cputime_t) s * 1000000;
+}
+
+/*
+ * Convert cputime to timespec and back.
+ */
+static inline cputime_t
+timespec_to_cputime(const struct timespec *value)
+{
+        return value->tv_nsec / 1000 + (u64) value->tv_sec * 1000000;
+}
+
+static inline void
+cputime_to_timespec(const cputime_t cputime, struct timespec *value)
+{
+#ifndef __s390x__
+	register_pair rp;
+
+	rp.pair = cputime >> 1;
+	asm ("dr %0,%1" : "+d" (rp) : "d" (1000000 >> 1));
+	value->tv_nsec = rp.subreg.even * 1000;
+	value->tv_sec = rp.subreg.odd;
+#else
+	value->tv_nsec = (cputime % 1000000) * 1000;
+	value->tv_sec = cputime / 1000000;
+#endif
+}
+
+/*
+ * Convert cputime to timeval and back.
+ * Since cputime and timeval have the same resolution (microseconds)
+ * this is easy.
+ */
+static inline cputime_t
+timeval_to_cputime(const struct timeval *value)
+{
+        return value->tv_usec + (u64) value->tv_sec * 1000000;
+}
+
+static inline void
+cputime_to_timeval(const cputime_t cputime, struct timeval *value)
+{
+#ifndef __s390x__
+	register_pair rp;
+
+	rp.pair = cputime >> 1;
+	asm ("dr %0,%1" : "+d" (rp) : "d" (1000000 >> 1));
+	value->tv_usec = rp.subreg.even;
+	value->tv_sec = rp.subreg.odd;
+#else
+	value->tv_usec = cputime % 1000000;
+	value->tv_sec = cputime / 1000000;
+#endif
+}
+
+/*
+ * Convert cputime to clock and back.
+ */
+static inline clock_t
+cputime_to_clock_t(cputime_t cputime)
+{
+	return __div(cputime, 1000000 / USER_HZ);
+}
+
+static inline cputime_t
+clock_t_to_cputime(unsigned long x)
+{
+	return (cputime_t) x * (1000000 / USER_HZ);
+}
+
+/*
+ * Convert cputime64 to clock.
+ */
+static inline clock_t
+cputime64_to_clock_t(cputime64_t cputime)
+{
+       return __div(cputime, 1000000 / USER_HZ);
+}
+
+#endif /* _S390_CPUTIME_H */
diff --git a/arch/s390/include/asm/current.h b/arch/s390/include/asm/current.h
new file mode 100644
index 00000000000..83cf36cde2d
--- /dev/null
+++ b/arch/s390/include/asm/current.h
@@ -0,0 +1,23 @@
+/*
+ *  include/asm-s390/current.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/current.h"
+ */
+
+#ifndef _S390_CURRENT_H
+#define _S390_CURRENT_H
+
+#ifdef __KERNEL__
+#include <asm/lowcore.h>
+
+struct task_struct;
+
+#define current ((struct task_struct *const)S390_lowcore.current_task)
+
+#endif
+
+#endif /* !(_S390_CURRENT_H) */
diff --git a/arch/s390/include/asm/dasd.h b/arch/s390/include/asm/dasd.h
new file mode 100644
index 00000000000..55b2b80cdf6
--- /dev/null
+++ b/arch/s390/include/asm/dasd.h
@@ -0,0 +1,283 @@
+/* 
+ * File...........: linux/drivers/s390/block/dasd.c
+ * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
+ * Bugreports.to..: <Linux390@de.ibm.com>
+ * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
+ * EMC Symmetrix ioctl Copyright EMC Corporation, 2008
+ * Author.........: Nigel Hislop <hislop_nigel@emc.com>
+ *
+ * This file is the interface of the DASD device driver, which is exported to user space
+ * any future changes wrt the API will result in a change of the APIVERSION reported
+ * to userspace by the DASDAPIVER-ioctl
+ *
+ */
+
+#ifndef DASD_H
+#define DASD_H
+#include <linux/ioctl.h>
+
+#define DASD_IOCTL_LETTER 'D'
+
+#define DASD_API_VERSION 6
+
+/* 
+ * struct dasd_information2_t
+ * represents any data about the device, which is visible to userspace.
+ *  including foramt and featueres.
+ */
+typedef struct dasd_information2_t {
+        unsigned int devno;         /* S/390 devno */
+        unsigned int real_devno;    /* for aliases */
+        unsigned int schid;         /* S/390 subchannel identifier */
+        unsigned int cu_type  : 16; /* from SenseID */
+        unsigned int cu_model :  8; /* from SenseID */
+        unsigned int dev_type : 16; /* from SenseID */
+        unsigned int dev_model : 8; /* from SenseID */
+        unsigned int open_count; 
+        unsigned int req_queue_len; 
+        unsigned int chanq_len;     /* length of chanq */
+        char type[4];               /* from discipline.name, 'none' for unknown */
+        unsigned int status;        /* current device level */
+        unsigned int label_block;   /* where to find the VOLSER */
+        unsigned int FBA_layout;    /* fixed block size (like AIXVOL) */
+        unsigned int characteristics_size;
+        unsigned int confdata_size;
+        char characteristics[64];   /* from read_device_characteristics */
+        char configuration_data[256]; /* from read_configuration_data */
+        unsigned int format;          /* format info like formatted/cdl/ldl/... */
+        unsigned int features;        /* dasd features like 'ro',...            */
+        unsigned int reserved0;       /* reserved for further use ,...          */
+        unsigned int reserved1;       /* reserved for further use ,...          */
+        unsigned int reserved2;       /* reserved for further use ,...          */
+        unsigned int reserved3;       /* reserved for further use ,...          */
+        unsigned int reserved4;       /* reserved for further use ,...          */
+        unsigned int reserved5;       /* reserved for further use ,...          */
+        unsigned int reserved6;       /* reserved for further use ,...          */
+        unsigned int reserved7;       /* reserved for further use ,...          */
+} dasd_information2_t;
+
+/*
+ * values to be used for dasd_information_t.format
+ * 0x00: NOT formatted
+ * 0x01: Linux disc layout
+ * 0x02: Common disc layout
+ */
+#define DASD_FORMAT_NONE 0
+#define DASD_FORMAT_LDL  1
+#define DASD_FORMAT_CDL  2
+/*
+ * values to be used for dasd_information_t.features
+ * 0x00: default features
+ * 0x01: readonly (ro)
+ * 0x02: use diag discipline (diag)
+ * 0x04: set the device initially online (internal use only)
+ * 0x08: enable ERP related logging
+ */
+#define DASD_FEATURE_DEFAULT	     0x00
+#define DASD_FEATURE_READONLY	     0x01
+#define DASD_FEATURE_USEDIAG	     0x02
+#define DASD_FEATURE_INITIAL_ONLINE  0x04
+#define DASD_FEATURE_ERPLOG	     0x08
+
+#define DASD_PARTN_BITS 2
+
+/* 
+ * struct dasd_information_t
+ * represents any data about the data, which is visible to userspace
+ */
+typedef struct dasd_information_t {
+        unsigned int devno;         /* S/390 devno */
+        unsigned int real_devno;    /* for aliases */
+        unsigned int schid;         /* S/390 subchannel identifier */
+        unsigned int cu_type  : 16; /* from SenseID */
+        unsigned int cu_model :  8; /* from SenseID */
+        unsigned int dev_type : 16; /* from SenseID */
+        unsigned int dev_model : 8; /* from SenseID */
+        unsigned int open_count; 
+        unsigned int req_queue_len; 
+        unsigned int chanq_len;     /* length of chanq */
+        char type[4];               /* from discipline.name, 'none' for unknown */
+        unsigned int status;        /* current device level */
+        unsigned int label_block;   /* where to find the VOLSER */
+        unsigned int FBA_layout;    /* fixed block size (like AIXVOL) */
+        unsigned int characteristics_size;
+        unsigned int confdata_size;
+        char characteristics[64];   /* from read_device_characteristics */
+        char configuration_data[256]; /* from read_configuration_data */
+} dasd_information_t;
+
+/*
+ * Read Subsystem Data - Performance Statistics
+ */ 
+typedef struct dasd_rssd_perf_stats_t {
+	unsigned char  invalid:1;
+	unsigned char  format:3;
+	unsigned char  data_format:4;
+	unsigned char  unit_address;
+	unsigned short device_status;
+	unsigned int   nr_read_normal;
+	unsigned int   nr_read_normal_hits;
+	unsigned int   nr_write_normal;
+	unsigned int   nr_write_fast_normal_hits;
+	unsigned int   nr_read_seq;
+	unsigned int   nr_read_seq_hits;
+	unsigned int   nr_write_seq;
+	unsigned int   nr_write_fast_seq_hits;
+	unsigned int   nr_read_cache;
+	unsigned int   nr_read_cache_hits;
+	unsigned int   nr_write_cache;
+	unsigned int   nr_write_fast_cache_hits;
+	unsigned int   nr_inhibit_cache;
+	unsigned int   nr_bybass_cache;
+	unsigned int   nr_seq_dasd_to_cache;
+	unsigned int   nr_dasd_to_cache;
+	unsigned int   nr_cache_to_dasd;
+	unsigned int   nr_delayed_fast_write;
+	unsigned int   nr_normal_fast_write;
+	unsigned int   nr_seq_fast_write;
+	unsigned int   nr_cache_miss;
+	unsigned char  status2;
+	unsigned int   nr_quick_write_promotes;
+	unsigned char  reserved;
+	unsigned short ssid;
+	unsigned char  reseved2[96];
+} __attribute__((packed)) dasd_rssd_perf_stats_t;
+
+/* 
+ * struct profile_info_t
+ * holds the profinling information 
+ */
+typedef struct dasd_profile_info_t {
+        unsigned int dasd_io_reqs;	 /* number of requests processed at all */
+        unsigned int dasd_io_sects;	 /* number of sectors processed at all */
+        unsigned int dasd_io_secs[32];	 /* histogram of request's sizes */
+        unsigned int dasd_io_times[32];	 /* histogram of requests's times */
+        unsigned int dasd_io_timps[32];	 /* histogram of requests's times per sector */
+        unsigned int dasd_io_time1[32];	 /* histogram of time from build to start */
+        unsigned int dasd_io_time2[32];	 /* histogram of time from start to irq */
+        unsigned int dasd_io_time2ps[32]; /* histogram of time from start to irq */
+        unsigned int dasd_io_time3[32];	 /* histogram of time from irq to end */
+        unsigned int dasd_io_nr_req[32]; /* histogram of # of requests in chanq */
+} dasd_profile_info_t;
+
+/* 
+ * struct format_data_t
+ * represents all data necessary to format a dasd
+ */
+typedef struct format_data_t {
+	int start_unit; /* from track */
+	int stop_unit;  /* to track */
+	int blksize;    /* sectorsize */
+        int intensity;  
+} format_data_t;
+
+/*
+ * values to be used for format_data_t.intensity
+ * 0/8: normal format
+ * 1/9: also write record zero
+ * 3/11: also write home address
+ * 4/12: invalidate track
+ */
+#define DASD_FMT_INT_FMT_R0 1 /* write record zero */
+#define DASD_FMT_INT_FMT_HA 2 /* write home address, also set FMT_R0 ! */
+#define DASD_FMT_INT_INVAL  4 /* invalidate tracks */
+#define DASD_FMT_INT_COMPAT 8 /* use OS/390 compatible disk layout */
+
+
+/* 
+ * struct attrib_data_t
+ * represents the operation (cache) bits for the device.
+ * Used in DE to influence caching of the DASD.
+ */
+typedef struct attrib_data_t {
+	unsigned char operation:3;     /* cache operation mode */
+	unsigned char reserved:5;      /* cache operation mode */
+	__u16         nr_cyl;          /* no of cyliners for read ahaed */
+	__u8          reserved2[29];   /* for future use */
+} __attribute__ ((packed)) attrib_data_t;
+
+/* definition of operation (cache) bits within attributes of DE */
+#define DASD_NORMAL_CACHE  0x0
+#define DASD_BYPASS_CACHE  0x1
+#define DASD_INHIBIT_LOAD  0x2
+#define DASD_SEQ_ACCESS    0x3
+#define DASD_SEQ_PRESTAGE  0x4
+#define DASD_REC_ACCESS    0x5
+
+/*
+ * Perform EMC Symmetrix I/O
+ */
+typedef struct dasd_symmio_parms {
+	unsigned char reserved[8];	/* compat with older releases */
+	unsigned long long psf_data;	/* char * cast to u64 */
+	unsigned long long rssd_result; /* char * cast to u64 */
+	int psf_data_len;
+	int rssd_result_len;
+} __attribute__ ((packed)) dasd_symmio_parms_t;
+
+/********************************************************************************
+ * SECTION: Definition of IOCTLs
+ *
+ * Here ist how the ioctl-nr should be used:
+ *    0 -   31   DASD driver itself
+ *   32 -  239   still open
+ *  240 -  255   reserved for EMC 
+ *******************************************************************************/
+
+/* Disable the volume (for Linux) */
+#define BIODASDDISABLE _IO(DASD_IOCTL_LETTER,0) 
+/* Enable the volume (for Linux) */
+#define BIODASDENABLE  _IO(DASD_IOCTL_LETTER,1)  
+/* Issue a reserve/release command, rsp. */
+#define BIODASDRSRV    _IO(DASD_IOCTL_LETTER,2) /* reserve */
+#define BIODASDRLSE    _IO(DASD_IOCTL_LETTER,3) /* release */
+#define BIODASDSLCK    _IO(DASD_IOCTL_LETTER,4) /* steal lock */
+/* reset profiling information of a device */
+#define BIODASDPRRST   _IO(DASD_IOCTL_LETTER,5)
+/* Quiesce IO on device */
+#define BIODASDQUIESCE _IO(DASD_IOCTL_LETTER,6) 
+/* Resume IO on device */
+#define BIODASDRESUME  _IO(DASD_IOCTL_LETTER,7) 
+
+
+/* retrieve API version number */
+#define DASDAPIVER     _IOR(DASD_IOCTL_LETTER,0,int)
+/* Get information on a dasd device */
+#define BIODASDINFO    _IOR(DASD_IOCTL_LETTER,1,dasd_information_t)
+/* retrieve profiling information of a device */
+#define BIODASDPRRD    _IOR(DASD_IOCTL_LETTER,2,dasd_profile_info_t)
+/* Get information on a dasd device (enhanced) */
+#define BIODASDINFO2   _IOR(DASD_IOCTL_LETTER,3,dasd_information2_t)
+/* Performance Statistics Read */
+#define BIODASDPSRD    _IOR(DASD_IOCTL_LETTER,4,dasd_rssd_perf_stats_t)
+/* Get Attributes (cache operations) */
+#define BIODASDGATTR   _IOR(DASD_IOCTL_LETTER,5,attrib_data_t) 
+
+
+/* #define BIODASDFORMAT  _IOW(IOCTL_LETTER,0,format_data_t) , deprecated */
+#define BIODASDFMT     _IOW(DASD_IOCTL_LETTER,1,format_data_t) 
+/* Set Attributes (cache operations) */
+#define BIODASDSATTR   _IOW(DASD_IOCTL_LETTER,2,attrib_data_t) 
+
+#define BIODASDSYMMIO  _IOWR(DASD_IOCTL_LETTER, 240, dasd_symmio_parms_t)
+
+#endif				/* DASD_H */
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 4 
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -4
+ * c-argdecl-indent: 4
+ * c-label-offset: -4
+ * c-continued-statement-offset: 4
+ * c-continued-brace-offset: 0
+ * indent-tabs-mode: nil
+ * tab-width: 8
+ * End:
+ */
diff --git a/arch/s390/include/asm/debug.h b/arch/s390/include/asm/debug.h
new file mode 100644
index 00000000000..9450ce6e32d
--- /dev/null
+++ b/arch/s390/include/asm/debug.h
@@ -0,0 +1,261 @@
+/*
+ *  include/asm-s390/debug.h
+ *   S/390 debug facility
+ *
+ *    Copyright (C) 1999, 2000 IBM Deutschland Entwicklung GmbH,
+ *                             IBM Corporation
+ */
+
+#ifndef DEBUG_H
+#define DEBUG_H
+
+#include <linux/fs.h>
+
+/* Note:
+ * struct __debug_entry must be defined outside of #ifdef __KERNEL__ 
+ * in order to allow a user program to analyze the 'raw'-view.
+ */
+
+struct __debug_entry{
+        union {
+                struct {
+                        unsigned long long clock:52;
+                        unsigned long long exception:1;
+                        unsigned long long level:3;
+                        unsigned long long cpuid:8;
+                } fields;
+
+                unsigned long long stck;
+        } id;
+        void* caller;
+} __attribute__((packed));
+
+
+#define __DEBUG_FEATURE_VERSION      2  /* version of debug feature */
+
+#ifdef __KERNEL__
+#include <linux/string.h>
+#include <linux/spinlock.h>
+#include <linux/kernel.h>
+#include <linux/time.h>
+
+#define DEBUG_MAX_LEVEL            6  /* debug levels range from 0 to 6 */
+#define DEBUG_OFF_LEVEL            -1 /* level where debug is switched off */
+#define DEBUG_FLUSH_ALL            -1 /* parameter to flush all areas */
+#define DEBUG_MAX_VIEWS            10 /* max number of views in proc fs */
+#define DEBUG_MAX_NAME_LEN         64 /* max length for a debugfs file name */
+#define DEBUG_DEFAULT_LEVEL        3  /* initial debug level */
+
+#define DEBUG_DIR_ROOT "s390dbf" /* name of debug root directory in proc fs */
+
+#define DEBUG_DATA(entry) (char*)(entry + 1) /* data is stored behind */
+                                             /* the entry information */
+
+typedef struct __debug_entry debug_entry_t;
+
+struct debug_view;
+
+typedef struct debug_info {	
+	struct debug_info* next;
+	struct debug_info* prev;
+	atomic_t ref_count;
+	spinlock_t lock;			
+	int level;
+	int nr_areas;
+	int pages_per_area;
+	int buf_size;
+	int entry_size;	
+	debug_entry_t*** areas;
+	int active_area;
+	int *active_pages;
+	int *active_entries;
+	struct dentry* debugfs_root_entry;
+	struct dentry* debugfs_entries[DEBUG_MAX_VIEWS];
+	struct debug_view* views[DEBUG_MAX_VIEWS];	
+	char name[DEBUG_MAX_NAME_LEN];
+	mode_t mode;
+} debug_info_t;
+
+typedef int (debug_header_proc_t) (debug_info_t* id,
+				   struct debug_view* view,
+				   int area,
+				   debug_entry_t* entry,
+				   char* out_buf);
+
+typedef int (debug_format_proc_t) (debug_info_t* id,
+				   struct debug_view* view, char* out_buf,
+				   const char* in_buf);
+typedef int (debug_prolog_proc_t) (debug_info_t* id,
+				   struct debug_view* view,
+				   char* out_buf);
+typedef int (debug_input_proc_t) (debug_info_t* id,
+				  struct debug_view* view,
+				  struct file* file,
+				  const char __user *user_buf,
+				  size_t in_buf_size, loff_t* offset);
+
+int debug_dflt_header_fn(debug_info_t* id, struct debug_view* view,
+		         int area, debug_entry_t* entry, char* out_buf);						
+				
+struct debug_view {
+	char name[DEBUG_MAX_NAME_LEN];
+	debug_prolog_proc_t* prolog_proc;
+	debug_header_proc_t* header_proc;
+	debug_format_proc_t* format_proc;
+	debug_input_proc_t*  input_proc;
+	void*                private_data;
+};
+
+extern struct debug_view debug_hex_ascii_view;
+extern struct debug_view debug_raw_view;
+extern struct debug_view debug_sprintf_view;
+
+/* do NOT use the _common functions */
+
+debug_entry_t* debug_event_common(debug_info_t* id, int level, 
+                                  const void* data, int length);
+
+debug_entry_t* debug_exception_common(debug_info_t* id, int level, 
+                                      const void* data, int length);
+
+/* Debug Feature API: */
+
+debug_info_t *debug_register(const char *name, int pages, int nr_areas,
+                             int buf_size);
+
+debug_info_t *debug_register_mode(const char *name, int pages, int nr_areas,
+				  int buf_size, mode_t mode, uid_t uid,
+				  gid_t gid);
+
+void debug_unregister(debug_info_t* id);
+
+void debug_set_level(debug_info_t* id, int new_level);
+
+void debug_stop_all(void);
+
+static inline debug_entry_t*
+debug_event(debug_info_t* id, int level, void* data, int length)
+{
+	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
+		return NULL;
+        return debug_event_common(id,level,data,length);
+}
+
+static inline debug_entry_t*
+debug_int_event(debug_info_t* id, int level, unsigned int tag)
+{
+        unsigned int t=tag;
+	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
+		return NULL;
+        return debug_event_common(id,level,&t,sizeof(unsigned int));
+}
+
+static inline debug_entry_t *
+debug_long_event (debug_info_t* id, int level, unsigned long tag)
+{
+        unsigned long t=tag;
+	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
+		return NULL;
+        return debug_event_common(id,level,&t,sizeof(unsigned long));
+}
+
+static inline debug_entry_t*
+debug_text_event(debug_info_t* id, int level, const char* txt)
+{
+	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
+		return NULL;
+        return debug_event_common(id,level,txt,strlen(txt));
+}
+
+extern debug_entry_t *
+debug_sprintf_event(debug_info_t* id,int level,char *string,...)
+	__attribute__ ((format(printf, 3, 4)));
+
+
+static inline debug_entry_t*
+debug_exception(debug_info_t* id, int level, void* data, int length)
+{
+	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
+		return NULL;
+        return debug_exception_common(id,level,data,length);
+}
+
+static inline debug_entry_t*
+debug_int_exception(debug_info_t* id, int level, unsigned int tag)
+{
+        unsigned int t=tag;
+	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
+		return NULL;
+        return debug_exception_common(id,level,&t,sizeof(unsigned int));
+}
+
+static inline debug_entry_t *
+debug_long_exception (debug_info_t* id, int level, unsigned long tag)
+{
+        unsigned long t=tag;
+	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
+		return NULL;
+        return debug_exception_common(id,level,&t,sizeof(unsigned long));
+}
+
+static inline debug_entry_t*
+debug_text_exception(debug_info_t* id, int level, const char* txt)
+{
+	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
+		return NULL;
+        return debug_exception_common(id,level,txt,strlen(txt));
+}
+
+
+extern debug_entry_t *
+debug_sprintf_exception(debug_info_t* id,int level,char *string,...)
+	__attribute__ ((format(printf, 3, 4)));
+
+int debug_register_view(debug_info_t* id, struct debug_view* view);
+int debug_unregister_view(debug_info_t* id, struct debug_view* view);
+
+/*
+   define the debug levels:
+   - 0 No debugging output to console or syslog
+   - 1 Log internal errors to syslog, ignore check conditions 
+   - 2 Log internal errors and check conditions to syslog
+   - 3 Log internal errors to console, log check conditions to syslog
+   - 4 Log internal errors and check conditions to console
+   - 5 panic on internal errors, log check conditions to console
+   - 6 panic on both, internal errors and check conditions
+ */
+
+#ifndef DEBUG_LEVEL
+#define DEBUG_LEVEL 4
+#endif
+
+#define INTERNAL_ERRMSG(x,y...) "E" __FILE__ "%d: " x, __LINE__, y
+#define INTERNAL_WRNMSG(x,y...) "W" __FILE__ "%d: " x, __LINE__, y
+#define INTERNAL_INFMSG(x,y...) "I" __FILE__ "%d: " x, __LINE__, y
+#define INTERNAL_DEBMSG(x,y...) "D" __FILE__ "%d: " x, __LINE__, y
+
+#if DEBUG_LEVEL > 0
+#define PRINT_DEBUG(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
+#define PRINT_INFO(x...) printk ( KERN_INFO PRINTK_HEADER x )
+#define PRINT_WARN(x...) printk ( KERN_WARNING PRINTK_HEADER x )
+#define PRINT_ERR(x...) printk ( KERN_ERR PRINTK_HEADER x )
+#define PRINT_FATAL(x...) panic ( PRINTK_HEADER x )
+#else
+#define PRINT_DEBUG(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
+#define PRINT_INFO(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
+#define PRINT_WARN(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
+#define PRINT_ERR(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
+#define PRINT_FATAL(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
+#endif				/* DASD_DEBUG */
+
+#undef DEBUG_MALLOC
+#ifdef DEBUG_MALLOC
+void *b;
+#define kmalloc(x...) (PRINT_INFO(" kmalloc %p\n",b=kmalloc(x)),b)
+#define kfree(x) PRINT_INFO(" kfree %p\n",x);kfree(x)
+#define get_zeroed_page(x...) (PRINT_INFO(" gfp %p\n",b=get_zeroed_page(x)),b)
+#define __get_free_pages(x...) (PRINT_INFO(" gfps %p\n",b=__get_free_pages(x)),b)
+#endif				/* DEBUG_MALLOC */
+
+#endif				/* __KERNEL__ */
+#endif				/* DEBUG_H */
diff --git a/arch/s390/include/asm/delay.h b/arch/s390/include/asm/delay.h
new file mode 100644
index 00000000000..a356c958e26
--- /dev/null
+++ b/arch/s390/include/asm/delay.h
@@ -0,0 +1,23 @@
+/*
+ *  include/asm-s390/delay.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/delay.h"
+ *    Copyright (C) 1993 Linus Torvalds
+ *
+ *  Delay routines calling functions in arch/s390/lib/delay.c
+ */
+ 
+#ifndef _S390_DELAY_H
+#define _S390_DELAY_H
+
+extern void __udelay(unsigned long usecs);
+extern void udelay_simple(unsigned long usecs);
+extern void __delay(unsigned long loops);
+
+#define udelay(n) __udelay(n)
+
+#endif /* defined(_S390_DELAY_H) */
diff --git a/arch/s390/include/asm/device.h b/arch/s390/include/asm/device.h
new file mode 100644
index 00000000000..d8f9872b0e2
--- /dev/null
+++ b/arch/s390/include/asm/device.h
@@ -0,0 +1,7 @@
+/*
+ * Arch specific extensions to struct device
+ *
+ * This file is released under the GPLv2
+ */
+#include <asm-generic/device.h>
+
diff --git a/arch/s390/include/asm/diag.h b/arch/s390/include/asm/diag.h
new file mode 100644
index 00000000000..72b2e2f2d32
--- /dev/null
+++ b/arch/s390/include/asm/diag.h
@@ -0,0 +1,39 @@
+/*
+ * s390 diagnose functions
+ *
+ * Copyright IBM Corp. 2007
+ * Author(s): Michael Holzheu <holzheu@de.ibm.com>
+ */
+
+#ifndef _ASM_S390_DIAG_H
+#define _ASM_S390_DIAG_H
+
+/*
+ * Diagnose 10: Release pages
+ */
+extern void diag10(unsigned long addr);
+
+/*
+ * Diagnose 14: Input spool file manipulation
+ */
+extern int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode);
+
+/*
+ * Diagnose 210: Get information about a virtual device
+ */
+struct diag210 {
+	u16 vrdcdvno;	/* device number (input) */
+	u16 vrdclen;	/* data block length (input) */
+	u8 vrdcvcla;	/* virtual device class (output) */
+	u8 vrdcvtyp;	/* virtual device type (output) */
+	u8 vrdcvsta;	/* virtual device status (output) */
+	u8 vrdcvfla;	/* virtual device flags (output) */
+	u8 vrdcrccl;	/* real device class (output) */
+	u8 vrdccrty;	/* real device type (output) */
+	u8 vrdccrmd;	/* real device model (output) */
+	u8 vrdccrft;	/* real device feature (output) */
+} __attribute__((packed, aligned(4)));
+
+extern int diag210(struct diag210 *addr);
+
+#endif /* _ASM_S390_DIAG_H */
diff --git a/arch/s390/include/asm/div64.h b/arch/s390/include/asm/div64.h
new file mode 100644
index 00000000000..6cd978cefb2
--- /dev/null
+++ b/arch/s390/include/asm/div64.h
@@ -0,0 +1 @@
+#include <asm-generic/div64.h>
diff --git a/arch/s390/include/asm/dma.h b/arch/s390/include/asm/dma.h
new file mode 100644
index 00000000000..7425c6af6cd
--- /dev/null
+++ b/arch/s390/include/asm/dma.h
@@ -0,0 +1,16 @@
+/*
+ *  include/asm-s390/dma.h
+ *
+ *  S390 version
+ */
+
+#ifndef _ASM_DMA_H
+#define _ASM_DMA_H
+
+#include <asm/io.h>		/* need byte IO */
+
+#define MAX_DMA_ADDRESS         0x80000000
+
+#define free_dma(x)	do { } while (0)
+
+#endif /* _ASM_DMA_H */
diff --git a/arch/s390/include/asm/ebcdic.h b/arch/s390/include/asm/ebcdic.h
new file mode 100644
index 00000000000..7f6f641d32f
--- /dev/null
+++ b/arch/s390/include/asm/ebcdic.h
@@ -0,0 +1,49 @@
+/*
+ *  include/asm-s390/ebcdic.h
+ *    EBCDIC -> ASCII, ASCII -> EBCDIC conversion routines.
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#ifndef _EBCDIC_H
+#define _EBCDIC_H
+
+#ifndef _S390_TYPES_H
+#include <types.h>
+#endif
+
+extern __u8 _ascebc_500[256];   /* ASCII -> EBCDIC 500 conversion table */
+extern __u8 _ebcasc_500[256];   /* EBCDIC 500 -> ASCII conversion table */
+extern __u8 _ascebc[256];   /* ASCII -> EBCDIC conversion table */
+extern __u8 _ebcasc[256];   /* EBCDIC -> ASCII conversion table */
+extern __u8 _ebc_tolower[256]; /* EBCDIC -> lowercase */
+extern __u8 _ebc_toupper[256]; /* EBCDIC -> uppercase */
+
+static inline void
+codepage_convert(const __u8 *codepage, volatile __u8 * addr, unsigned long nr)
+{
+	if (nr-- <= 0)
+		return;
+	asm volatile(
+		"	bras	1,1f\n"
+		"	tr	0(1,%0),0(%2)\n"
+		"0:	tr	0(256,%0),0(%2)\n"
+		"	la	%0,256(%0)\n"
+		"1:	ahi	%1,-256\n"
+		"	jnm	0b\n"
+		"	ex	%1,0(1)"
+		: "+&a" (addr), "+&a" (nr)
+		: "a" (codepage) : "cc", "memory", "1");
+}
+
+#define ASCEBC(addr,nr) codepage_convert(_ascebc, addr, nr)
+#define EBCASC(addr,nr) codepage_convert(_ebcasc, addr, nr)
+#define ASCEBC_500(addr,nr) codepage_convert(_ascebc_500, addr, nr)
+#define EBCASC_500(addr,nr) codepage_convert(_ebcasc_500, addr, nr)
+#define EBC_TOLOWER(addr,nr) codepage_convert(_ebc_tolower, addr, nr)
+#define EBC_TOUPPER(addr,nr) codepage_convert(_ebc_toupper, addr, nr)
+
+#endif
+
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
new file mode 100644
index 00000000000..261785ab5b2
--- /dev/null
+++ b/arch/s390/include/asm/elf.h
@@ -0,0 +1,194 @@
+/*
+ *  include/asm-s390/elf.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/elf.h"
+ */
+
+#ifndef __ASMS390_ELF_H
+#define __ASMS390_ELF_H
+
+/* s390 relocations defined by the ABIs */
+#define R_390_NONE		0	/* No reloc.  */
+#define R_390_8			1	/* Direct 8 bit.  */
+#define R_390_12		2	/* Direct 12 bit.  */
+#define R_390_16		3	/* Direct 16 bit.  */
+#define R_390_32		4	/* Direct 32 bit.  */
+#define R_390_PC32		5	/* PC relative 32 bit.	*/
+#define R_390_GOT12		6	/* 12 bit GOT offset.  */
+#define R_390_GOT32		7	/* 32 bit GOT offset.  */
+#define R_390_PLT32		8	/* 32 bit PC relative PLT address.  */
+#define R_390_COPY		9	/* Copy symbol at runtime.  */
+#define R_390_GLOB_DAT		10	/* Create GOT entry.  */
+#define R_390_JMP_SLOT		11	/* Create PLT entry.  */
+#define R_390_RELATIVE		12	/* Adjust by program base.  */
+#define R_390_GOTOFF32		13	/* 32 bit offset to GOT.	 */
+#define R_390_GOTPC		14	/* 32 bit PC rel. offset to GOT.  */
+#define R_390_GOT16		15	/* 16 bit GOT offset.  */
+#define R_390_PC16		16	/* PC relative 16 bit.	*/
+#define R_390_PC16DBL		17	/* PC relative 16 bit shifted by 1.  */
+#define R_390_PLT16DBL		18	/* 16 bit PC rel. PLT shifted by 1.  */
+#define R_390_PC32DBL		19	/* PC relative 32 bit shifted by 1.  */
+#define R_390_PLT32DBL		20	/* 32 bit PC rel. PLT shifted by 1.  */
+#define R_390_GOTPCDBL		21	/* 32 bit PC rel. GOT shifted by 1.  */
+#define R_390_64		22	/* Direct 64 bit.  */
+#define R_390_PC64		23	/* PC relative 64 bit.	*/
+#define R_390_GOT64		24	/* 64 bit GOT offset.  */
+#define R_390_PLT64		25	/* 64 bit PC relative PLT address.  */
+#define R_390_GOTENT		26	/* 32 bit PC rel. to GOT entry >> 1. */
+#define R_390_GOTOFF16		27	/* 16 bit offset to GOT. */
+#define R_390_GOTOFF64		28	/* 64 bit offset to GOT. */
+#define R_390_GOTPLT12		29	/* 12 bit offset to jump slot.	*/
+#define R_390_GOTPLT16		30	/* 16 bit offset to jump slot.	*/
+#define R_390_GOTPLT32		31	/* 32 bit offset to jump slot.	*/
+#define R_390_GOTPLT64		32	/* 64 bit offset to jump slot.	*/
+#define R_390_GOTPLTENT		33	/* 32 bit rel. offset to jump slot.  */
+#define R_390_PLTOFF16		34	/* 16 bit offset from GOT to PLT. */
+#define R_390_PLTOFF32		35	/* 32 bit offset from GOT to PLT. */
+#define R_390_PLTOFF64		36	/* 16 bit offset from GOT to PLT. */
+#define R_390_TLS_LOAD		37	/* Tag for load insn in TLS code. */
+#define R_390_TLS_GDCALL	38	/* Tag for function call in general
+                                           dynamic TLS code.  */
+#define R_390_TLS_LDCALL	39	/* Tag for function call in local
+                                           dynamic TLS code.  */
+#define R_390_TLS_GD32		40	/* Direct 32 bit for general dynamic
+                                           thread local data.  */
+#define R_390_TLS_GD64		41	/* Direct 64 bit for general dynamic
+                                           thread local data.  */
+#define R_390_TLS_GOTIE12	42	/* 12 bit GOT offset for static TLS
+                                           block offset.  */
+#define R_390_TLS_GOTIE32	43	/* 32 bit GOT offset for static TLS
+                                           block offset.  */
+#define R_390_TLS_GOTIE64	44	/* 64 bit GOT offset for static TLS
+                                           block offset.  */
+#define R_390_TLS_LDM32		45	/* Direct 32 bit for local dynamic
+                                           thread local data in LD code.  */
+#define R_390_TLS_LDM64		46	/* Direct 64 bit for local dynamic
+                                           thread local data in LD code.  */
+#define R_390_TLS_IE32		47	/* 32 bit address of GOT entry for
+                                           negated static TLS block offset.  */
+#define R_390_TLS_IE64		48	/* 64 bit address of GOT entry for
+                                           negated static TLS block offset.  */
+#define R_390_TLS_IEENT		49	/* 32 bit rel. offset to GOT entry for
+                                           negated static TLS block offset.  */
+#define R_390_TLS_LE32		50	/* 32 bit negated offset relative to
+                                           static TLS block.  */
+#define R_390_TLS_LE64		51	/* 64 bit negated offset relative to
+                                           static TLS block.  */
+#define R_390_TLS_LDO32		52	/* 32 bit offset relative to TLS
+                                           block.  */
+#define R_390_TLS_LDO64		53	/* 64 bit offset relative to TLS
+                                           block.  */
+#define R_390_TLS_DTPMOD	54	/* ID of module containing symbol.  */
+#define R_390_TLS_DTPOFF	55	/* Offset in TLS block.  */
+#define R_390_TLS_TPOFF		56	/* Negate offset in static TLS
+                                           block.  */
+#define R_390_20		57	/* Direct 20 bit.  */
+#define R_390_GOT20		58	/* 20 bit GOT offset.  */
+#define R_390_GOTPLT20		59	/* 20 bit offset to jump slot.  */
+#define R_390_TLS_GOTIE20	60	/* 20 bit GOT offset for static TLS
+					   block offset.  */
+/* Keep this the last entry.  */
+#define R_390_NUM	61
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#ifndef __s390x__
+#define ELF_CLASS	ELFCLASS32
+#else /* __s390x__ */
+#define ELF_CLASS	ELFCLASS64
+#endif /* __s390x__ */
+#define ELF_DATA	ELFDATA2MSB
+#define ELF_ARCH	EM_S390
+
+/*
+ * ELF register definitions..
+ */
+
+#include <asm/ptrace.h>
+#include <asm/user.h>
+
+typedef s390_fp_regs elf_fpregset_t;
+typedef s390_regs elf_gregset_t;
+
+typedef s390_fp_regs compat_elf_fpregset_t;
+typedef s390_compat_regs compat_elf_gregset_t;
+
+#include <linux/sched.h>	/* for task_struct */
+#include <asm/system.h>		/* for save_access_regs */
+#include <asm/mmu_context.h>
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) \
+	(((x)->e_machine == EM_S390 || (x)->e_machine == EM_S390_OLD) \
+         && (x)->e_ident[EI_CLASS] == ELF_CLASS) 
+#define compat_elf_check_arch(x) \
+	(((x)->e_machine == EM_S390 || (x)->e_machine == EM_S390_OLD) \
+	 && (x)->e_ident[EI_CLASS] == ELF_CLASS)
+#define compat_start_thread	start_thread31
+
+/* For SVR4/S390 the function pointer to be registered with `atexit` is
+   passed in R14. */
+#define ELF_PLAT_INIT(_r, load_addr) \
+	do { \
+		_r->gprs[14] = 0; \
+	} while (0)
+
+#define CORE_DUMP_USE_REGSET
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE	4096
+
+/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
+   use of this is to invoke "./ld.so someprog" to test out a new version of
+   the loader.  We need to make sure that it is out of the way of the program
+   that it will "exec", and that there is sufficient room for the brk.  */
+#define ELF_ET_DYN_BASE		(STACK_TOP / 3 * 2)
+
+/* This yields a mask that user programs can use to figure out what
+   instruction set this CPU supports. */
+
+extern unsigned long elf_hwcap;
+#define ELF_HWCAP (elf_hwcap)
+
+/* This yields a string that ld.so will use to load implementation
+   specific libraries for optimization.  This is more specific in
+   intent than poking at uname or /proc/cpuinfo.
+
+   For the moment, we have only optimizations for the Intel generations,
+   but that could change... */
+
+#define ELF_PLATFORM_SIZE 8
+extern char elf_platform[];
+#define ELF_PLATFORM (elf_platform)
+
+#ifndef __s390x__
+#define SET_PERSONALITY(ex) set_personality(PER_LINUX)
+#else /* __s390x__ */
+#define SET_PERSONALITY(ex)				\
+do {							\
+	if (current->personality != PER_LINUX32)	\
+		set_personality(PER_LINUX);		\
+	if ((ex).e_ident[EI_CLASS] == ELFCLASS32)	\
+		set_thread_flag(TIF_31BIT);		\
+	else						\
+		clear_thread_flag(TIF_31BIT);		\
+} while (0)
+#endif /* __s390x__ */
+
+/*
+ * An executable for which elf_read_implies_exec() returns TRUE will
+ * have the READ_IMPLIES_EXEC personality flag set automatically.
+ */
+#define elf_read_implies_exec(ex, executable_stack)	\
+({							\
+	if (current->mm->context.noexec &&		\
+	    executable_stack != EXSTACK_DISABLE_X)	\
+		disable_noexec(current->mm, current);	\
+	current->mm->context.noexec == 0;		\
+})
+
+#endif
diff --git a/arch/s390/include/asm/emergency-restart.h b/arch/s390/include/asm/emergency-restart.h
new file mode 100644
index 00000000000..108d8c48e42
--- /dev/null
+++ b/arch/s390/include/asm/emergency-restart.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_EMERGENCY_RESTART_H
+#define _ASM_EMERGENCY_RESTART_H
+
+#include <asm-generic/emergency-restart.h>
+
+#endif /* _ASM_EMERGENCY_RESTART_H */
diff --git a/arch/s390/include/asm/errno.h b/arch/s390/include/asm/errno.h
new file mode 100644
index 00000000000..e41d5b37c4d
--- /dev/null
+++ b/arch/s390/include/asm/errno.h
@@ -0,0 +1,13 @@
+/*
+ *  include/asm-s390/errno.h
+ *
+ *  S390 version
+ *
+ */
+
+#ifndef _S390_ERRNO_H
+#define _S390_ERRNO_H
+
+#include <asm-generic/errno.h>
+
+#endif
diff --git a/arch/s390/include/asm/etr.h b/arch/s390/include/asm/etr.h
new file mode 100644
index 00000000000..80ef58c6197
--- /dev/null
+++ b/arch/s390/include/asm/etr.h
@@ -0,0 +1,258 @@
+/*
+ *  include/asm-s390/etr.h
+ *
+ *  Copyright IBM Corp. 2006
+ *  Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ */
+#ifndef __S390_ETR_H
+#define __S390_ETR_H
+
+/* ETR attachment control register */
+struct etr_eacr {
+	unsigned int e0		: 1;	/* port 0 stepping control */
+	unsigned int e1		: 1;	/* port 1 stepping control */
+	unsigned int _pad0	: 5;	/* must be 00100 */
+	unsigned int dp		: 1;	/* data port control */
+	unsigned int p0		: 1;	/* port 0 change recognition control */
+	unsigned int p1		: 1;	/* port 1 change recognition control */
+	unsigned int _pad1	: 3;	/* must be 000 */
+	unsigned int ea		: 1;	/* ETR alert control */
+	unsigned int es		: 1;	/* ETR sync check control */
+	unsigned int sl		: 1;	/* switch to local control */
+} __attribute__ ((packed));
+
+/* Port state returned by steai */
+enum etr_psc {
+	etr_psc_operational = 0,
+	etr_psc_semi_operational = 1,
+	etr_psc_protocol_error =  4,
+	etr_psc_no_symbols = 8,
+	etr_psc_no_signal = 12,
+	etr_psc_pps_mode = 13
+};
+
+/* Logical port state returned by stetr */
+enum etr_lpsc {
+	etr_lpsc_operational_step = 0,
+	etr_lpsc_operational_alt = 1,
+	etr_lpsc_semi_operational = 2,
+	etr_lpsc_protocol_error =  4,
+	etr_lpsc_no_symbol_sync = 8,
+	etr_lpsc_no_signal = 12,
+	etr_lpsc_pps_mode = 13
+};
+
+/* ETR status words */
+struct etr_esw {
+	struct etr_eacr eacr;		/* attachment control register */
+	unsigned int y		: 1;	/* stepping mode */
+	unsigned int _pad0	: 5;	/* must be 00000 */
+	unsigned int p		: 1;	/* stepping port number */
+	unsigned int q		: 1;	/* data port number */
+	unsigned int psc0	: 4;	/* port 0 state code */
+	unsigned int psc1	: 4;	/* port 1 state code */
+} __attribute__ ((packed));
+
+/* Second level data register status word */
+struct etr_slsw {
+	unsigned int vv1	: 1;	/* copy of validity bit data frame 1 */
+	unsigned int vv2	: 1;	/* copy of validity bit data frame 2 */
+	unsigned int vv3	: 1;	/* copy of validity bit data frame 3 */
+	unsigned int vv4	: 1;	/* copy of validity bit data frame 4 */
+	unsigned int _pad0	: 19;	/* must by all zeroes */
+	unsigned int n		: 1;	/* EAF port number */
+	unsigned int v1		: 1;	/* validity bit ETR data frame 1 */
+	unsigned int v2		: 1;	/* validity bit ETR data frame 2 */
+	unsigned int v3		: 1;	/* validity bit ETR data frame 3 */
+	unsigned int v4		: 1;	/* validity bit ETR data frame 4 */
+	unsigned int _pad1	: 4;	/* must be 0000 */
+} __attribute__ ((packed));
+
+/* ETR data frames */
+struct etr_edf1 {
+	unsigned int u		: 1;	/* untuned bit */
+	unsigned int _pad0	: 1;	/* must be 0 */
+	unsigned int r		: 1;	/* service request bit */
+	unsigned int _pad1	: 4;	/* must be 0000 */
+	unsigned int a		: 1;	/* time adjustment bit */
+	unsigned int net_id	: 8;	/* ETR network id */
+	unsigned int etr_id	: 8;	/* id of ETR which sends data frames */
+	unsigned int etr_pn	: 8;	/* port number of ETR output port */
+} __attribute__ ((packed));
+
+struct etr_edf2 {
+	unsigned int etv	: 32;	/* Upper 32 bits of TOD. */
+} __attribute__ ((packed));
+
+struct etr_edf3 {
+	unsigned int rc		: 8;	/* failure reason code */
+	unsigned int _pad0	: 3;	/* must be 000 */
+	unsigned int c		: 1;	/* ETR coupled bit */
+	unsigned int tc		: 4;	/* ETR type code */
+	unsigned int blto	: 8;	/* biased local time offset */
+					/* (blto - 128) * 15 = minutes */
+	unsigned int buo	: 8;	/* biased utc offset */
+					/* (buo - 128) = leap seconds */
+} __attribute__ ((packed));
+
+struct etr_edf4 {
+	unsigned int ed		: 8;	/* ETS device dependent data */
+	unsigned int _pad0	: 1;	/* must be 0 */
+	unsigned int buc	: 5;	/* biased ut1 correction */
+					/* (buc - 16) * 0.1 seconds */
+	unsigned int em		: 6;	/* ETS error magnitude */
+	unsigned int dc		: 6;	/* ETS drift code */
+	unsigned int sc		: 6;	/* ETS steering code */
+} __attribute__ ((packed));
+
+/*
+ * ETR attachment information block, two formats
+ * format 1 has 4 reserved words with a size of 64 bytes
+ * format 2 has 16 reserved words with a size of 96 bytes
+ */
+struct etr_aib {
+	struct etr_esw esw;
+	struct etr_slsw slsw;
+	unsigned long long tsp;
+	struct etr_edf1 edf1;
+	struct etr_edf2 edf2;
+	struct etr_edf3 edf3;
+	struct etr_edf4 edf4;
+	unsigned int reserved[16];
+} __attribute__ ((packed,aligned(8)));
+
+/* ETR interruption parameter */
+struct etr_irq_parm {
+	unsigned int _pad0	: 8;
+	unsigned int pc0	: 1;	/* port 0 state change */
+	unsigned int pc1	: 1;	/* port 1 state change */
+	unsigned int _pad1	: 3;
+	unsigned int eai	: 1;	/* ETR alert indication */
+	unsigned int _pad2	: 18;
+} __attribute__ ((packed));
+
+/* Query TOD offset result */
+struct etr_ptff_qto {
+	unsigned long long physical_clock;
+	unsigned long long tod_offset;
+	unsigned long long logical_tod_offset;
+	unsigned long long tod_epoch_difference;
+} __attribute__ ((packed));
+
+/* Inline assembly helper functions */
+static inline int etr_setr(struct etr_eacr *ctrl)
+{
+	int rc = -ENOSYS;
+
+	asm volatile(
+		"	.insn	s,0xb2160000,0(%2)\n"
+		"0:	la	%0,0\n"
+		"1:\n"
+		EX_TABLE(0b,1b)
+		: "+d" (rc) : "m" (*ctrl), "a" (ctrl));
+	return rc;
+}
+
+/* Stores a format 1 aib with 64 bytes */
+static inline int etr_stetr(struct etr_aib *aib)
+{
+	int rc = -ENOSYS;
+
+	asm volatile(
+		"	.insn	s,0xb2170000,0(%2)\n"
+		"0:	la	%0,0\n"
+		"1:\n"
+		EX_TABLE(0b,1b)
+		: "+d" (rc) : "m" (*aib), "a" (aib));
+	return rc;
+}
+
+/* Stores a format 2 aib with 96 bytes for specified port */
+static inline int etr_steai(struct etr_aib *aib, unsigned int func)
+{
+	register unsigned int reg0 asm("0") = func;
+	int rc = -ENOSYS;
+
+	asm volatile(
+		"	.insn	s,0xb2b30000,0(%2)\n"
+		"0:	la	%0,0\n"
+		"1:\n"
+		EX_TABLE(0b,1b)
+		: "+d" (rc) : "m" (*aib), "a" (aib), "d" (reg0));
+	return rc;
+}
+
+/* Function codes for the steai instruction. */
+#define ETR_STEAI_STEPPING_PORT		0x10
+#define ETR_STEAI_ALTERNATE_PORT	0x11
+#define ETR_STEAI_PORT_0		0x12
+#define ETR_STEAI_PORT_1		0x13
+
+static inline int etr_ptff(void *ptff_block, unsigned int func)
+{
+	register unsigned int reg0 asm("0") = func;
+	register unsigned long reg1 asm("1") = (unsigned long) ptff_block;
+	int rc = -ENOSYS;
+
+	asm volatile(
+		"	.word	0x0104\n"
+		"	ipm	%0\n"
+		"	srl	%0,28\n"
+		: "=d" (rc), "=m" (ptff_block)
+		: "d" (reg0), "d" (reg1), "m" (ptff_block) : "cc");
+	return rc;
+}
+
+/* Function codes for the ptff instruction. */
+#define ETR_PTFF_QAF	0x00	/* query available functions */
+#define ETR_PTFF_QTO	0x01	/* query tod offset */
+#define ETR_PTFF_QSI	0x02	/* query steering information */
+#define ETR_PTFF_ATO	0x40	/* adjust tod offset */
+#define ETR_PTFF_STO	0x41	/* set tod offset */
+#define ETR_PTFF_SFS	0x42	/* set fine steering rate */
+#define ETR_PTFF_SGS	0x43	/* set gross steering rate */
+
+/* Functions needed by the machine check handler */
+void etr_switch_to_local(void);
+void etr_sync_check(void);
+
+/* STP interruption parameter */
+struct stp_irq_parm {
+	unsigned int _pad0	: 14;
+	unsigned int tsc	: 1;	/* Timing status change */
+	unsigned int lac	: 1;	/* Link availability change */
+	unsigned int tcpc	: 1;	/* Time control parameter change */
+	unsigned int _pad2	: 15;
+} __attribute__ ((packed));
+
+#define STP_OP_SYNC	1
+#define STP_OP_CTRL	3
+
+struct stp_sstpi {
+	unsigned int rsvd0;
+	unsigned int rsvd1 : 8;
+	unsigned int stratum : 8;
+	unsigned int vbits : 16;
+	unsigned int leaps : 16;
+	unsigned int tmd : 4;
+	unsigned int ctn : 4;
+	unsigned int rsvd2 : 3;
+	unsigned int c : 1;
+	unsigned int tst : 4;
+	unsigned int tzo : 16;
+	unsigned int dsto : 16;
+	unsigned int ctrl : 16;
+	unsigned int rsvd3 : 16;
+	unsigned int tto;
+	unsigned int rsvd4;
+	unsigned int ctnid[3];
+	unsigned int rsvd5;
+	unsigned int todoff[4];
+	unsigned int rsvd6[48];
+} __attribute__ ((packed));
+
+/* Functions needed by the machine check handler */
+void stp_sync_check(void);
+void stp_island_check(void);
+
+#endif /* __S390_ETR_H */
diff --git a/arch/s390/include/asm/extmem.h b/arch/s390/include/asm/extmem.h
new file mode 100644
index 00000000000..33837d75618
--- /dev/null
+++ b/arch/s390/include/asm/extmem.h
@@ -0,0 +1,33 @@
+/*
+ *  include/asm-s390x/extmem.h
+ *
+ *  definitions for external memory segment support
+ *  Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ */
+
+#ifndef _ASM_S390X_DCSS_H
+#define _ASM_S390X_DCSS_H
+#ifndef __ASSEMBLY__
+
+/* possible values for segment type as returned by segment_info */
+#define SEG_TYPE_SW 0
+#define SEG_TYPE_EW 1
+#define SEG_TYPE_SR 2
+#define SEG_TYPE_ER 3
+#define SEG_TYPE_SN 4
+#define SEG_TYPE_EN 5
+#define SEG_TYPE_SC 6
+#define SEG_TYPE_EWEN 7
+
+#define SEGMENT_SHARED 0
+#define SEGMENT_EXCLUSIVE 1
+
+int segment_load (char *name, int segtype, unsigned long *addr, unsigned long *length);
+void segment_unload(char *name);
+void segment_save(char *name);
+int segment_type (char* name);
+int segment_modify_shared (char *name, int do_nonshared);
+void segment_warning(int rc, char *seg_name);
+
+#endif
+#endif
diff --git a/arch/s390/include/asm/fb.h b/arch/s390/include/asm/fb.h
new file mode 100644
index 00000000000..c7df3803099
--- /dev/null
+++ b/arch/s390/include/asm/fb.h
@@ -0,0 +1,12 @@
+#ifndef _ASM_FB_H_
+#define _ASM_FB_H_
+#include <linux/fb.h>
+
+#define fb_pgprotect(...) do {} while (0)
+
+static inline int fb_is_primary_device(struct fb_info *info)
+{
+	return 0;
+}
+
+#endif /* _ASM_FB_H_ */
diff --git a/arch/s390/include/asm/fcntl.h b/arch/s390/include/asm/fcntl.h
new file mode 100644
index 00000000000..46ab12db573
--- /dev/null
+++ b/arch/s390/include/asm/fcntl.h
@@ -0,0 +1 @@
+#include <asm-generic/fcntl.h>
diff --git a/arch/s390/include/asm/fcx.h b/arch/s390/include/asm/fcx.h
new file mode 100644
index 00000000000..8be1f3a5804
--- /dev/null
+++ b/arch/s390/include/asm/fcx.h
@@ -0,0 +1,311 @@
+/*
+ *  Functions for assembling fcx enabled I/O control blocks.
+ *
+ *    Copyright IBM Corp. 2008
+ *    Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
+ */
+
+#ifndef _ASM_S390_FCX_H
+#define _ASM_S390_FCX_H _ASM_S390_FCX_H
+
+#include <linux/types.h>
+
+#define TCW_FORMAT_DEFAULT		0
+#define TCW_TIDAW_FORMAT_DEFAULT	0
+#define TCW_FLAGS_INPUT_TIDA		1 << (23 - 5)
+#define TCW_FLAGS_TCCB_TIDA		1 << (23 - 6)
+#define TCW_FLAGS_OUTPUT_TIDA		1 << (23 - 7)
+#define TCW_FLAGS_TIDAW_FORMAT(x)	((x) & 3) << (23 - 9)
+#define TCW_FLAGS_GET_TIDAW_FORMAT(x)	(((x) >> (23 - 9)) & 3)
+
+/**
+ * struct tcw - Transport Control Word (TCW)
+ * @format: TCW format
+ * @flags: TCW flags
+ * @tccbl: Transport-Command-Control-Block Length
+ * @r: Read Operations
+ * @w: Write Operations
+ * @output: Output-Data Address
+ * @input: Input-Data Address
+ * @tsb: Transport-Status-Block Address
+ * @tccb: Transport-Command-Control-Block Address
+ * @output_count: Output Count
+ * @input_count: Input Count
+ * @intrg: Interrogate TCW Address
+ */
+struct tcw {
+	u32 format:2;
+	u32 :6;
+	u32 flags:24;
+	u32 :8;
+	u32 tccbl:6;
+	u32 r:1;
+	u32 w:1;
+	u32 :16;
+	u64 output;
+	u64 input;
+	u64 tsb;
+	u64 tccb;
+	u32 output_count;
+	u32 input_count;
+	u32 :32;
+	u32 :32;
+	u32 :32;
+	u32 intrg;
+} __attribute__ ((packed, aligned(64)));
+
+#define TIDAW_FLAGS_LAST		1 << (7 - 0)
+#define TIDAW_FLAGS_SKIP		1 << (7 - 1)
+#define TIDAW_FLAGS_DATA_INT		1 << (7 - 2)
+#define TIDAW_FLAGS_TTIC		1 << (7 - 3)
+#define TIDAW_FLAGS_INSERT_CBC		1 << (7 - 4)
+
+/**
+ * struct tidaw - Transport-Indirect-Addressing Word (TIDAW)
+ * @flags: TIDAW flags. Can be an arithmetic OR of the following constants:
+ * %TIDAW_FLAGS_LAST, %TIDAW_FLAGS_SKIP, %TIDAW_FLAGS_DATA_INT,
+ * %TIDAW_FLAGS_TTIC, %TIDAW_FLAGS_INSERT_CBC
+ * @count: Count
+ * @addr: Address
+ */
+struct tidaw {
+	u32 flags:8;
+	u32 :24;
+	u32 count;
+	u64 addr;
+} __attribute__ ((packed, aligned(16)));
+
+/**
+ * struct tsa_iostat - I/O-Status Transport-Status Area (IO-Stat TSA)
+ * @dev_time: Device Time
+ * @def_time: Defer Time
+ * @queue_time: Queue Time
+ * @dev_busy_time: Device-Busy Time
+ * @dev_act_time: Device-Active-Only Time
+ * @sense: Sense Data (if present)
+ */
+struct tsa_iostat {
+	u32 dev_time;
+	u32 def_time;
+	u32 queue_time;
+	u32 dev_busy_time;
+	u32 dev_act_time;
+	u8 sense[32];
+} __attribute__ ((packed));
+
+/**
+ * struct tsa_ddpcs - Device-Detected-Program-Check Transport-Status Area (DDPC TSA)
+ * @rc: Reason Code
+ * @rcq: Reason Code Qualifier
+ * @sense: Sense Data (if present)
+ */
+struct tsa_ddpc {
+	u32 :24;
+	u32 rc:8;
+	u8 rcq[16];
+	u8 sense[32];
+} __attribute__ ((packed));
+
+#define TSA_INTRG_FLAGS_CU_STATE_VALID		1 << (7 - 0)
+#define TSA_INTRG_FLAGS_DEV_STATE_VALID		1 << (7 - 1)
+#define TSA_INTRG_FLAGS_OP_STATE_VALID		1 << (7 - 2)
+
+/**
+ * struct tsa_intrg - Interrogate Transport-Status Area (Intrg. TSA)
+ * @format: Format
+ * @flags: Flags. Can be an arithmetic OR of the following constants:
+ * %TSA_INTRG_FLAGS_CU_STATE_VALID, %TSA_INTRG_FLAGS_DEV_STATE_VALID,
+ * %TSA_INTRG_FLAGS_OP_STATE_VALID
+ * @cu_state: Controle-Unit State
+ * @dev_state: Device State
+ * @op_state: Operation State
+ * @sd_info: State-Dependent Information
+ * @dl_id: Device-Level Identifier
+ * @dd_data: Device-Dependent Data
+ */
+struct tsa_intrg {
+	u32 format:8;
+	u32 flags:8;
+	u32 cu_state:8;
+	u32 dev_state:8;
+	u32 op_state:8;
+	u32 :24;
+	u8 sd_info[12];
+	u32 dl_id;
+	u8 dd_data[28];
+} __attribute__ ((packed));
+
+#define TSB_FORMAT_NONE		0
+#define TSB_FORMAT_IOSTAT	1
+#define TSB_FORMAT_DDPC		2
+#define TSB_FORMAT_INTRG	3
+
+#define TSB_FLAGS_DCW_OFFSET_VALID	1 << (7 - 0)
+#define TSB_FLAGS_COUNT_VALID		1 << (7 - 1)
+#define TSB_FLAGS_CACHE_MISS		1 << (7 - 2)
+#define TSB_FLAGS_TIME_VALID		1 << (7 - 3)
+#define TSB_FLAGS_FORMAT(x)		((x) & 7)
+#define TSB_FORMAT(t)			((t)->flags & 7)
+
+/**
+ * struct tsb - Transport-Status Block (TSB)
+ * @length: Length
+ * @flags: Flags. Can be an arithmetic OR of the following constants:
+ * %TSB_FLAGS_DCW_OFFSET_VALID, %TSB_FLAGS_COUNT_VALID, %TSB_FLAGS_CACHE_MISS,
+ * %TSB_FLAGS_TIME_VALID
+ * @dcw_offset: DCW Offset
+ * @count: Count
+ * @tsa: Transport-Status-Area
+ */
+struct tsb {
+	u32 length:8;
+	u32 flags:8;
+	u32 dcw_offset:16;
+	u32 count;
+	u32 :32;
+	union {
+		struct tsa_iostat iostat;
+		struct tsa_ddpc ddpc;
+		struct tsa_intrg intrg;
+	} __attribute__ ((packed)) tsa;
+} __attribute__ ((packed, aligned(8)));
+
+#define DCW_INTRG_FORMAT_DEFAULT	0
+
+#define DCW_INTRG_RC_UNSPECIFIED	0
+#define DCW_INTRG_RC_TIMEOUT		1
+
+#define DCW_INTRG_RCQ_UNSPECIFIED	0
+#define DCW_INTRG_RCQ_PRIMARY		1
+#define DCW_INTRG_RCQ_SECONDARY		2
+
+#define DCW_INTRG_FLAGS_MPM		1 < (7 - 0)
+#define DCW_INTRG_FLAGS_PPR		1 < (7 - 1)
+#define DCW_INTRG_FLAGS_CRIT		1 < (7 - 2)
+
+/**
+ * struct dcw_intrg_data - Interrogate DCW data
+ * @format: Format. Should be %DCW_INTRG_FORMAT_DEFAULT
+ * @rc: Reason Code. Can be one of %DCW_INTRG_RC_UNSPECIFIED,
+ * %DCW_INTRG_RC_TIMEOUT
+ * @rcq: Reason Code Qualifier: Can be one of %DCW_INTRG_RCQ_UNSPECIFIED,
+ * %DCW_INTRG_RCQ_PRIMARY, %DCW_INTRG_RCQ_SECONDARY
+ * @lpm: Logical-Path Mask
+ * @pam: Path-Available Mask
+ * @pim: Path-Installed Mask
+ * @timeout: Timeout
+ * @flags: Flags. Can be an arithmetic OR of %DCW_INTRG_FLAGS_MPM,
+ * %DCW_INTRG_FLAGS_PPR, %DCW_INTRG_FLAGS_CRIT
+ * @time: Time
+ * @prog_id: Program Identifier
+ * @prog_data: Program-Dependent Data
+ */
+struct dcw_intrg_data {
+	u32 format:8;
+	u32 rc:8;
+	u32 rcq:8;
+	u32 lpm:8;
+	u32 pam:8;
+	u32 pim:8;
+	u32 timeout:16;
+	u32 flags:8;
+	u32 :24;
+	u32 :32;
+	u64 time;
+	u64 prog_id;
+	u8  prog_data[0];
+} __attribute__ ((packed));
+
+#define DCW_FLAGS_CC		1 << (7 - 1)
+
+#define DCW_CMD_WRITE		0x01
+#define DCW_CMD_READ		0x02
+#define DCW_CMD_CONTROL		0x03
+#define DCW_CMD_SENSE		0x04
+#define DCW_CMD_SENSE_ID	0xe4
+#define DCW_CMD_INTRG		0x40
+
+/**
+ * struct dcw - Device-Command Word (DCW)
+ * @cmd: Command Code. Can be one of %DCW_CMD_WRITE, %DCW_CMD_READ,
+ * %DCW_CMD_CONTROL, %DCW_CMD_SENSE, %DCW_CMD_SENSE_ID, %DCW_CMD_INTRG
+ * @flags: Flags. Can be an arithmetic OR of %DCW_FLAGS_CC
+ * @cd_count: Control-Data Count
+ * @count: Count
+ * @cd: Control Data
+ */
+struct dcw {
+	u32 cmd:8;
+	u32 flags:8;
+	u32 :8;
+	u32 cd_count:8;
+	u32 count;
+	u8 cd[0];
+} __attribute__ ((packed));
+
+#define TCCB_FORMAT_DEFAULT	0x7f
+#define TCCB_MAX_DCW		30
+#define TCCB_MAX_SIZE		(sizeof(struct tccb_tcah) + \
+				 TCCB_MAX_DCW * sizeof(struct dcw) + \
+				 sizeof(struct tccb_tcat))
+#define TCCB_SAC_DEFAULT	0xf901
+#define TCCB_SAC_INTRG		0xf902
+
+/**
+ * struct tccb_tcah - Transport-Command-Area Header (TCAH)
+ * @format: Format. Should be %TCCB_FORMAT_DEFAULT
+ * @tcal: Transport-Command-Area Length
+ * @sac: Service-Action Code. Can be one of %TCCB_SAC_DEFAULT, %TCCB_SAC_INTRG
+ * @prio: Priority
+ */
+struct tccb_tcah {
+	u32 format:8;
+	u32 :24;
+	u32 :24;
+	u32 tcal:8;
+	u32 sac:16;
+	u32 :8;
+	u32 prio:8;
+	u32 :32;
+} __attribute__ ((packed));
+
+/**
+ * struct tccb_tcat - Transport-Command-Area Trailer (TCAT)
+ * @count: Transport Count
+ */
+struct tccb_tcat {
+	u32 :32;
+	u32 count;
+} __attribute__ ((packed));
+
+/**
+ * struct tccb - (partial) Transport-Command-Control Block (TCCB)
+ * @tcah: TCAH
+ * @tca: Transport-Command Area
+ */
+struct tccb {
+	struct tccb_tcah tcah;
+	u8 tca[0];
+} __attribute__ ((packed, aligned(8)));
+
+struct tcw *tcw_get_intrg(struct tcw *tcw);
+void *tcw_get_data(struct tcw *tcw);
+struct tccb *tcw_get_tccb(struct tcw *tcw);
+struct tsb *tcw_get_tsb(struct tcw *tcw);
+
+void tcw_init(struct tcw *tcw, int r, int w);
+void tcw_finalize(struct tcw *tcw, int num_tidaws);
+
+void tcw_set_intrg(struct tcw *tcw, struct tcw *intrg_tcw);
+void tcw_set_data(struct tcw *tcw, void *data, int use_tidal);
+void tcw_set_tccb(struct tcw *tcw, struct tccb *tccb);
+void tcw_set_tsb(struct tcw *tcw, struct tsb *tsb);
+
+void tccb_init(struct tccb *tccb, size_t tccb_size, u32 sac);
+void tsb_init(struct tsb *tsb);
+struct dcw *tccb_add_dcw(struct tccb *tccb, size_t tccb_size, u8 cmd, u8 flags,
+			 void *cd, u8 cd_count, u32 count);
+struct tidaw *tcw_add_tidaw(struct tcw *tcw, int num_tidaws, u8 flags,
+			    void *addr, u32 count);
+
+#endif /* _ASM_S390_FCX_H */
diff --git a/arch/s390/include/asm/futex.h b/arch/s390/include/asm/futex.h
new file mode 100644
index 00000000000..5c5d02de49e
--- /dev/null
+++ b/arch/s390/include/asm/futex.h
@@ -0,0 +1,52 @@
+#ifndef _ASM_S390_FUTEX_H
+#define _ASM_S390_FUTEX_H
+
+#ifdef __KERNEL__
+
+#include <linux/futex.h>
+#include <linux/uaccess.h>
+#include <asm/errno.h>
+
+static inline int futex_atomic_op_inuser (int encoded_op, int __user *uaddr)
+{
+	int op = (encoded_op >> 28) & 7;
+	int cmp = (encoded_op >> 24) & 15;
+	int oparg = (encoded_op << 8) >> 20;
+	int cmparg = (encoded_op << 20) >> 20;
+	int oldval, ret;
+
+	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
+		oparg = 1 << oparg;
+
+	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(int)))
+		return -EFAULT;
+
+	pagefault_disable();
+	ret = uaccess.futex_atomic_op(op, uaddr, oparg, &oldval);
+	pagefault_enable();
+
+	if (!ret) {
+		switch (cmp) {
+		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
+		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
+		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
+		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
+		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
+		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
+		default: ret = -ENOSYS;
+		}
+	}
+	return ret;
+}
+
+static inline int futex_atomic_cmpxchg_inatomic(int __user *uaddr,
+						int oldval, int newval)
+{
+	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(int)))
+		return -EFAULT;
+
+	return uaccess.futex_atomic_cmpxchg(uaddr, oldval, newval);
+}
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_S390_FUTEX_H */
diff --git a/arch/s390/include/asm/hardirq.h b/arch/s390/include/asm/hardirq.h
new file mode 100644
index 00000000000..89ec7056da2
--- /dev/null
+++ b/arch/s390/include/asm/hardirq.h
@@ -0,0 +1,51 @@
+/*
+ *  include/asm-s390/hardirq.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
+ *               Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
+ *
+ *  Derived from "include/asm-i386/hardirq.h"
+ */
+
+#ifndef __ASM_HARDIRQ_H
+#define __ASM_HARDIRQ_H
+
+#include <linux/threads.h>
+#include <linux/sched.h>
+#include <linux/cache.h>
+#include <linux/interrupt.h>
+#include <asm/lowcore.h>
+
+/* irq_cpustat_t is unused currently, but could be converted
+ * into a percpu variable instead of storing softirq_pending
+ * on the lowcore */
+typedef struct {
+	unsigned int __softirq_pending;
+} irq_cpustat_t;
+
+#define local_softirq_pending() (S390_lowcore.softirq_pending)
+
+#define __ARCH_IRQ_STAT
+#define __ARCH_HAS_DO_SOFTIRQ
+
+#define HARDIRQ_BITS	8
+
+void clock_comparator_work(void);
+
+static inline unsigned long long local_tick_disable(void)
+{
+	unsigned long long old;
+
+	old = S390_lowcore.clock_comparator;
+	S390_lowcore.clock_comparator = -1ULL;
+	return old;
+}
+
+static inline void local_tick_enable(unsigned long long comp)
+{
+	S390_lowcore.clock_comparator = comp;
+}
+
+#endif /* __ASM_HARDIRQ_H */
diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h
new file mode 100644
index 00000000000..670a1d1745d
--- /dev/null
+++ b/arch/s390/include/asm/hugetlb.h
@@ -0,0 +1,184 @@
+/*
+ *  IBM System z Huge TLB Page Support for Kernel.
+ *
+ *    Copyright IBM Corp. 2008
+ *    Author(s): Gerald Schaefer <gerald.schaefer@de.ibm.com>
+ */
+
+#ifndef _ASM_S390_HUGETLB_H
+#define _ASM_S390_HUGETLB_H
+
+#include <asm/page.h>
+#include <asm/pgtable.h>
+
+
+#define is_hugepage_only_range(mm, addr, len)	0
+#define hugetlb_free_pgd_range			free_pgd_range
+
+void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+		     pte_t *ptep, pte_t pte);
+
+/*
+ * If the arch doesn't supply something else, assume that hugepage
+ * size aligned regions are ok without further preparation.
+ */
+static inline int prepare_hugepage_range(struct file *file,
+			unsigned long addr, unsigned long len)
+{
+	if (len & ~HPAGE_MASK)
+		return -EINVAL;
+	if (addr & ~HPAGE_MASK)
+		return -EINVAL;
+	return 0;
+}
+
+#define hugetlb_prefault_arch_hook(mm)		do { } while (0)
+
+int arch_prepare_hugepage(struct page *page);
+void arch_release_hugepage(struct page *page);
+
+static inline pte_t pte_mkhuge(pte_t pte)
+{
+	/*
+	 * PROT_NONE needs to be remapped from the pte type to the ste type.
+	 * The HW invalid bit is also different for pte and ste. The pte
+	 * invalid bit happens to be the same as the ste _SEGMENT_ENTRY_LARGE
+	 * bit, so we don't have to clear it.
+	 */
+	if (pte_val(pte) & _PAGE_INVALID) {
+		if (pte_val(pte) & _PAGE_SWT)
+			pte_val(pte) |= _HPAGE_TYPE_NONE;
+		pte_val(pte) |= _SEGMENT_ENTRY_INV;
+	}
+	/*
+	 * Clear SW pte bits SWT and SWX, there are no SW bits in a segment
+	 * table entry.
+	 */
+	pte_val(pte) &= ~(_PAGE_SWT | _PAGE_SWX);
+	/*
+	 * Also set the change-override bit because we don't need dirty bit
+	 * tracking for hugetlbfs pages.
+	 */
+	pte_val(pte) |= (_SEGMENT_ENTRY_LARGE | _SEGMENT_ENTRY_CO);
+	return pte;
+}
+
+static inline pte_t huge_pte_wrprotect(pte_t pte)
+{
+	pte_val(pte) |= _PAGE_RO;
+	return pte;
+}
+
+static inline int huge_pte_none(pte_t pte)
+{
+	return (pte_val(pte) & _SEGMENT_ENTRY_INV) &&
+		!(pte_val(pte) & _SEGMENT_ENTRY_RO);
+}
+
+static inline pte_t huge_ptep_get(pte_t *ptep)
+{
+	pte_t pte = *ptep;
+	unsigned long mask;
+
+	if (!MACHINE_HAS_HPAGE) {
+		ptep = (pte_t *) (pte_val(pte) & _SEGMENT_ENTRY_ORIGIN);
+		if (ptep) {
+			mask = pte_val(pte) &
+				(_SEGMENT_ENTRY_INV | _SEGMENT_ENTRY_RO);
+			pte = pte_mkhuge(*ptep);
+			pte_val(pte) |= mask;
+		}
+	}
+	return pte;
+}
+
+static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
+					    unsigned long addr, pte_t *ptep)
+{
+	pte_t pte = huge_ptep_get(ptep);
+
+	pmd_clear((pmd_t *) ptep);
+	return pte;
+}
+
+static inline void __pmd_csp(pmd_t *pmdp)
+{
+	register unsigned long reg2 asm("2") = pmd_val(*pmdp);
+	register unsigned long reg3 asm("3") = pmd_val(*pmdp) |
+					       _SEGMENT_ENTRY_INV;
+	register unsigned long reg4 asm("4") = ((unsigned long) pmdp) + 5;
+
+	asm volatile(
+		"	csp %1,%3"
+		: "=m" (*pmdp)
+		: "d" (reg2), "d" (reg3), "d" (reg4), "m" (*pmdp) : "cc");
+	pmd_val(*pmdp) = _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY;
+}
+
+static inline void __pmd_idte(unsigned long address, pmd_t *pmdp)
+{
+	unsigned long sto = (unsigned long) pmdp -
+				pmd_index(address) * sizeof(pmd_t);
+
+	if (!(pmd_val(*pmdp) & _SEGMENT_ENTRY_INV)) {
+		asm volatile(
+			"	.insn	rrf,0xb98e0000,%2,%3,0,0"
+			: "=m" (*pmdp)
+			: "m" (*pmdp), "a" (sto),
+			  "a" ((address & HPAGE_MASK))
+		);
+	}
+	pmd_val(*pmdp) = _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY;
+}
+
+static inline void huge_ptep_invalidate(struct mm_struct *mm,
+					unsigned long address, pte_t *ptep)
+{
+	pmd_t *pmdp = (pmd_t *) ptep;
+
+	if (!MACHINE_HAS_IDTE) {
+		__pmd_csp(pmdp);
+		if (mm->context.noexec) {
+			pmdp = get_shadow_table(pmdp);
+			__pmd_csp(pmdp);
+		}
+		return;
+	}
+
+	__pmd_idte(address, pmdp);
+	if (mm->context.noexec) {
+		pmdp = get_shadow_table(pmdp);
+		__pmd_idte(address, pmdp);
+	}
+	return;
+}
+
+#define huge_ptep_set_access_flags(__vma, __addr, __ptep, __entry, __dirty) \
+({									    \
+	int __changed = !pte_same(huge_ptep_get(__ptep), __entry);	    \
+	if (__changed) {						    \
+		huge_ptep_invalidate((__vma)->vm_mm, __addr, __ptep);	    \
+		set_huge_pte_at((__vma)->vm_mm, __addr, __ptep, __entry);   \
+	}								    \
+	__changed;							    \
+})
+
+#define huge_ptep_set_wrprotect(__mm, __addr, __ptep)			\
+({									\
+	pte_t __pte = huge_ptep_get(__ptep);				\
+	if (pte_write(__pte)) {						\
+		if (atomic_read(&(__mm)->mm_users) > 1 ||		\
+		    (__mm) != current->active_mm)			\
+			huge_ptep_invalidate(__mm, __addr, __ptep);	\
+		set_huge_pte_at(__mm, __addr, __ptep,			\
+				huge_pte_wrprotect(__pte));		\
+	}								\
+})
+
+static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
+					 unsigned long address, pte_t *ptep)
+{
+	huge_ptep_invalidate(vma->vm_mm, address, ptep);
+}
+
+#endif /* _ASM_S390_HUGETLB_H */
diff --git a/arch/s390/include/asm/idals.h b/arch/s390/include/asm/idals.h
new file mode 100644
index 00000000000..e82c10efe65
--- /dev/null
+++ b/arch/s390/include/asm/idals.h
@@ -0,0 +1,256 @@
+/* 
+ * File...........: linux/include/asm-s390x/idals.h
+ * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
+ *		    Martin Schwidefsky <schwidefsky@de.ibm.com>
+ * Bugreports.to..: <Linux390@de.ibm.com>
+ * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 2000a
+ 
+ * History of changes
+ * 07/24/00 new file
+ * 05/04/02 code restructuring.
+ */
+
+#ifndef _S390_IDALS_H
+#define _S390_IDALS_H
+
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <asm/cio.h>
+#include <asm/uaccess.h>
+
+#ifdef __s390x__
+#define IDA_SIZE_LOG 12 /* 11 for 2k , 12 for 4k */
+#else
+#define IDA_SIZE_LOG 11 /* 11 for 2k , 12 for 4k */
+#endif
+#define IDA_BLOCK_SIZE (1L<<IDA_SIZE_LOG)
+
+/*
+ * Test if an address/length pair needs an idal list.
+ */
+static inline int
+idal_is_needed(void *vaddr, unsigned int length)
+{
+#ifdef __s390x__
+	return ((__pa(vaddr) + length - 1) >> 31) != 0;
+#else
+	return 0;
+#endif
+}
+
+
+/*
+ * Return the number of idal words needed for an address/length pair.
+ */
+static inline unsigned int
+idal_nr_words(void *vaddr, unsigned int length)
+{
+#ifdef __s390x__
+	if (idal_is_needed(vaddr, length))
+		return ((__pa(vaddr) & (IDA_BLOCK_SIZE-1)) + length + 
+			(IDA_BLOCK_SIZE-1)) >> IDA_SIZE_LOG;
+#endif
+	return 0;
+}
+
+/*
+ * Create the list of idal words for an address/length pair.
+ */
+static inline unsigned long *
+idal_create_words(unsigned long *idaws, void *vaddr, unsigned int length)
+{
+#ifdef __s390x__
+	unsigned long paddr;
+	unsigned int cidaw;
+
+	paddr = __pa(vaddr);
+	cidaw = ((paddr & (IDA_BLOCK_SIZE-1)) + length + 
+		 (IDA_BLOCK_SIZE-1)) >> IDA_SIZE_LOG;
+	*idaws++ = paddr;
+	paddr &= -IDA_BLOCK_SIZE;
+	while (--cidaw > 0) {
+		paddr += IDA_BLOCK_SIZE;
+		*idaws++ = paddr;
+	}
+#endif
+	return idaws;
+}
+
+/*
+ * Sets the address of the data in CCW.
+ * If necessary it allocates an IDAL and sets the appropriate flags.
+ */
+static inline int
+set_normalized_cda(struct ccw1 * ccw, void *vaddr)
+{
+#ifdef __s390x__
+	unsigned int nridaws;
+	unsigned long *idal;
+
+	if (ccw->flags & CCW_FLAG_IDA)
+		return -EINVAL;
+	nridaws = idal_nr_words(vaddr, ccw->count);
+	if (nridaws > 0) {
+		idal = kmalloc(nridaws * sizeof(unsigned long),
+			       GFP_ATOMIC | GFP_DMA );
+		if (idal == NULL)
+			return -ENOMEM;
+		idal_create_words(idal, vaddr, ccw->count);
+		ccw->flags |= CCW_FLAG_IDA;
+		vaddr = idal;
+	}
+#endif
+	ccw->cda = (__u32)(unsigned long) vaddr;
+	return 0;
+}
+
+/*
+ * Releases any allocated IDAL related to the CCW.
+ */
+static inline void
+clear_normalized_cda(struct ccw1 * ccw)
+{
+#ifdef __s390x__
+	if (ccw->flags & CCW_FLAG_IDA) {
+		kfree((void *)(unsigned long) ccw->cda);
+		ccw->flags &= ~CCW_FLAG_IDA;
+	}
+#endif
+	ccw->cda = 0;
+}
+
+/*
+ * Idal buffer extension
+ */
+struct idal_buffer {
+	size_t size;
+	size_t page_order;
+	void *data[0];
+};
+
+/*
+ * Allocate an idal buffer
+ */
+static inline struct idal_buffer *
+idal_buffer_alloc(size_t size, int page_order)
+{
+	struct idal_buffer *ib;
+	int nr_chunks, nr_ptrs, i;
+
+	nr_ptrs = (size + IDA_BLOCK_SIZE - 1) >> IDA_SIZE_LOG;
+	nr_chunks = (4096 << page_order) >> IDA_SIZE_LOG;
+	ib = kmalloc(sizeof(struct idal_buffer) + nr_ptrs*sizeof(void *),
+		     GFP_DMA | GFP_KERNEL);
+	if (ib == NULL)
+		return ERR_PTR(-ENOMEM);
+	ib->size = size;
+	ib->page_order = page_order;
+	for (i = 0; i < nr_ptrs; i++) {
+		if ((i & (nr_chunks - 1)) != 0) {
+			ib->data[i] = ib->data[i-1] + IDA_BLOCK_SIZE;
+			continue;
+		}
+		ib->data[i] = (void *)
+			__get_free_pages(GFP_KERNEL, page_order);
+		if (ib->data[i] != NULL)
+			continue;
+		// Not enough memory
+		while (i >= nr_chunks) {
+			i -= nr_chunks;
+			free_pages((unsigned long) ib->data[i],
+				   ib->page_order);
+		}
+		kfree(ib);
+		return ERR_PTR(-ENOMEM);
+	}
+	return ib;
+}
+
+/*
+ * Free an idal buffer.
+ */
+static inline void
+idal_buffer_free(struct idal_buffer *ib)
+{
+	int nr_chunks, nr_ptrs, i;
+
+	nr_ptrs = (ib->size + IDA_BLOCK_SIZE - 1) >> IDA_SIZE_LOG;
+	nr_chunks = (4096 << ib->page_order) >> IDA_SIZE_LOG;
+	for (i = 0; i < nr_ptrs; i += nr_chunks)
+		free_pages((unsigned long) ib->data[i], ib->page_order);
+	kfree(ib);
+}
+
+/*
+ * Test if a idal list is really needed.
+ */
+static inline int
+__idal_buffer_is_needed(struct idal_buffer *ib)
+{
+#ifdef __s390x__
+	return ib->size > (4096ul << ib->page_order) ||
+		idal_is_needed(ib->data[0], ib->size);
+#else
+	return ib->size > (4096ul << ib->page_order);
+#endif
+}
+
+/*
+ * Set channel data address to idal buffer.
+ */
+static inline void
+idal_buffer_set_cda(struct idal_buffer *ib, struct ccw1 *ccw)
+{
+	if (__idal_buffer_is_needed(ib)) {
+		// setup idals;
+		ccw->cda = (u32)(addr_t) ib->data;
+		ccw->flags |= CCW_FLAG_IDA;
+	} else
+		// we do not need idals - use direct addressing
+		ccw->cda = (u32)(addr_t) ib->data[0];
+	ccw->count = ib->size;
+}
+
+/*
+ * Copy count bytes from an idal buffer to user memory
+ */
+static inline size_t
+idal_buffer_to_user(struct idal_buffer *ib, void __user *to, size_t count)
+{
+	size_t left;
+	int i;
+
+	BUG_ON(count > ib->size);
+	for (i = 0; count > IDA_BLOCK_SIZE; i++) {
+		left = copy_to_user(to, ib->data[i], IDA_BLOCK_SIZE);
+		if (left)
+			return left + count - IDA_BLOCK_SIZE;
+		to = (void __user *) to + IDA_BLOCK_SIZE;
+		count -= IDA_BLOCK_SIZE;
+	}
+	return copy_to_user(to, ib->data[i], count);
+}
+
+/*
+ * Copy count bytes from user memory to an idal buffer
+ */
+static inline size_t
+idal_buffer_from_user(struct idal_buffer *ib, const void __user *from, size_t count)
+{
+	size_t left;
+	int i;
+
+	BUG_ON(count > ib->size);
+	for (i = 0; count > IDA_BLOCK_SIZE; i++) {
+		left = copy_from_user(ib->data[i], from, IDA_BLOCK_SIZE);
+		if (left)
+			return left + count - IDA_BLOCK_SIZE;
+		from = (void __user *) from + IDA_BLOCK_SIZE;
+		count -= IDA_BLOCK_SIZE;
+	}
+	return copy_from_user(ib->data[i], from, count);
+}
+
+#endif
diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h
new file mode 100644
index 00000000000..b7ff6afc3ca
--- /dev/null
+++ b/arch/s390/include/asm/io.h
@@ -0,0 +1,54 @@
+/*
+ *  include/asm-s390/io.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/io.h"
+ */
+
+#ifndef _S390_IO_H
+#define _S390_IO_H
+
+#ifdef __KERNEL__
+
+#include <asm/page.h>
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+/*
+ * Change virtual addresses to physical addresses and vv.
+ * These are pretty trivial
+ */
+static inline unsigned long virt_to_phys(volatile void * address)
+{
+	unsigned long real_address;
+	asm volatile(
+		 "	lra	%0,0(%1)\n"
+		 "	jz	0f\n"
+		 "	la	%0,0\n"
+                 "0:"
+		 : "=a" (real_address) : "a" (address) : "cc");
+        return real_address;
+}
+
+static inline void * phys_to_virt(unsigned long address)
+{
+	return (void *) address;
+}
+
+/*
+ * Convert a physical pointer to a virtual kernel pointer for /dev/mem
+ * access
+ */
+#define xlate_dev_mem_ptr(p)	__va(p)
+
+/*
+ * Convert a virtual cached pointer to an uncached pointer
+ */
+#define xlate_dev_kmem_ptr(p)	p
+
+#endif /* __KERNEL__ */
+
+#endif
diff --git a/arch/s390/include/asm/ioctl.h b/arch/s390/include/asm/ioctl.h
new file mode 100644
index 00000000000..b279fe06dfe
--- /dev/null
+++ b/arch/s390/include/asm/ioctl.h
@@ -0,0 +1 @@
+#include <asm-generic/ioctl.h>
diff --git a/arch/s390/include/asm/ioctls.h b/arch/s390/include/asm/ioctls.h
new file mode 100644
index 00000000000..40e481b1b46
--- /dev/null
+++ b/arch/s390/include/asm/ioctls.h
@@ -0,0 +1,92 @@
+/*
+ *  include/asm-s390/ioctls.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/ioctls.h"
+ */
+
+#ifndef __ARCH_S390_IOCTLS_H__
+#define __ARCH_S390_IOCTLS_H__
+
+#include <asm/ioctl.h>
+
+/* 0x54 is just a magic number to make these relatively unique ('T') */
+
+#define TCGETS		0x5401
+#define TCSETS		0x5402
+#define TCSETSW		0x5403
+#define TCSETSF		0x5404
+#define TCGETA		0x5405
+#define TCSETA		0x5406
+#define TCSETAW		0x5407
+#define TCSETAF		0x5408
+#define TCSBRK		0x5409
+#define TCXONC		0x540A
+#define TCFLSH		0x540B
+#define TIOCEXCL	0x540C
+#define TIOCNXCL	0x540D
+#define TIOCSCTTY	0x540E
+#define TIOCGPGRP	0x540F
+#define TIOCSPGRP	0x5410
+#define TIOCOUTQ	0x5411
+#define TIOCSTI		0x5412
+#define TIOCGWINSZ	0x5413
+#define TIOCSWINSZ	0x5414
+#define TIOCMGET	0x5415
+#define TIOCMBIS	0x5416
+#define TIOCMBIC	0x5417
+#define TIOCMSET	0x5418
+#define TIOCGSOFTCAR	0x5419
+#define TIOCSSOFTCAR	0x541A
+#define FIONREAD	0x541B
+#define TIOCINQ		FIONREAD
+#define TIOCLINUX	0x541C
+#define TIOCCONS	0x541D
+#define TIOCGSERIAL	0x541E
+#define TIOCSSERIAL	0x541F
+#define TIOCPKT		0x5420
+#define FIONBIO		0x5421
+#define TIOCNOTTY	0x5422
+#define TIOCSETD	0x5423
+#define TIOCGETD	0x5424
+#define TCSBRKP		0x5425	/* Needed for POSIX tcsendbreak() */
+#define TIOCSBRK	0x5427  /* BSD compatibility */
+#define TIOCCBRK	0x5428  /* BSD compatibility */
+#define TIOCGSID	0x5429  /* Return the session ID of FD */
+#define TCGETS2		_IOR('T',0x2A, struct termios2)
+#define TCSETS2		_IOW('T',0x2B, struct termios2)
+#define TCSETSW2	_IOW('T',0x2C, struct termios2)
+#define TCSETSF2	_IOW('T',0x2D, struct termios2)
+#define TIOCGPTN	_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
+#define TIOCSPTLCK	_IOW('T',0x31, int)  /* Lock/unlock Pty */
+
+#define FIONCLEX	0x5450  /* these numbers need to be adjusted. */
+#define FIOCLEX		0x5451
+#define FIOASYNC	0x5452
+#define TIOCSERCONFIG	0x5453
+#define TIOCSERGWILD	0x5454
+#define TIOCSERSWILD	0x5455
+#define TIOCGLCKTRMIOS	0x5456
+#define TIOCSLCKTRMIOS	0x5457
+#define TIOCSERGSTRUCT	0x5458 /* For debugging only */
+#define TIOCSERGETLSR   0x5459 /* Get line status register */
+#define TIOCSERGETMULTI 0x545A /* Get multiport config  */
+#define TIOCSERSETMULTI 0x545B /* Set multiport config */
+
+#define TIOCMIWAIT	0x545C	/* wait for a change on serial input line(s) */
+#define TIOCGICOUNT	0x545D	/* read serial port inline interrupt counts */
+#define FIOQSIZE	0x545E
+
+/* Used for packet mode */
+#define TIOCPKT_DATA		 0
+#define TIOCPKT_FLUSHREAD	 1
+#define TIOCPKT_FLUSHWRITE	 2
+#define TIOCPKT_STOP		 4
+#define TIOCPKT_START		 8
+#define TIOCPKT_NOSTOP		16
+#define TIOCPKT_DOSTOP		32
+
+#define TIOCSER_TEMT    0x01	/* Transmitter physically empty */
+
+#endif
diff --git a/arch/s390/include/asm/ipcbuf.h b/arch/s390/include/asm/ipcbuf.h
new file mode 100644
index 00000000000..37f293d12c8
--- /dev/null
+++ b/arch/s390/include/asm/ipcbuf.h
@@ -0,0 +1,31 @@
+#ifndef __S390_IPCBUF_H__
+#define __S390_IPCBUF_H__
+
+/*
+ * The user_ipc_perm structure for S/390 architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 32-bit mode_t and seq
+ * - 2 miscellaneous 32-bit values
+ */
+
+struct ipc64_perm
+{
+	__kernel_key_t		key;
+	__kernel_uid32_t	uid;
+	__kernel_gid32_t	gid;
+	__kernel_uid32_t	cuid;
+	__kernel_gid32_t	cgid;
+	__kernel_mode_t		mode;
+	unsigned short		__pad1;
+	unsigned short		seq;
+#ifndef __s390x__
+	unsigned short		__pad2;
+#endif /* ! __s390x__ */
+	unsigned long		__unused1;
+	unsigned long		__unused2;
+};
+
+#endif /* __S390_IPCBUF_H__ */
diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h
new file mode 100644
index 00000000000..1171e6d144a
--- /dev/null
+++ b/arch/s390/include/asm/ipl.h
@@ -0,0 +1,168 @@
+/*
+ * s390 (re)ipl support
+ *
+ * Copyright IBM Corp. 2007
+ */
+
+#ifndef _ASM_S390_IPL_H
+#define _ASM_S390_IPL_H
+
+#include <asm/types.h>
+#include <asm/cio.h>
+#include <asm/setup.h>
+
+#define IPL_PARMBLOCK_ORIGIN	0x2000
+
+#define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \
+			      sizeof(struct ipl_block_fcp))
+
+#define IPL_PARM_BLK0_FCP_LEN (sizeof(struct ipl_block_fcp) + 8)
+
+#define IPL_PARM_BLK_CCW_LEN (sizeof(struct ipl_list_hdr) + \
+			      sizeof(struct ipl_block_ccw))
+
+#define IPL_PARM_BLK0_CCW_LEN (sizeof(struct ipl_block_ccw) + 8)
+
+#define IPL_MAX_SUPPORTED_VERSION (0)
+
+#define IPL_PARMBLOCK_START	((struct ipl_parameter_block *) \
+				 IPL_PARMBLOCK_ORIGIN)
+#define IPL_PARMBLOCK_SIZE	(IPL_PARMBLOCK_START->hdr.len)
+
+struct ipl_list_hdr {
+	u32 len;
+	u8  reserved1[3];
+	u8  version;
+	u32 blk0_len;
+	u8  pbt;
+	u8  flags;
+	u16 reserved2;
+} __attribute__((packed));
+
+struct ipl_block_fcp {
+	u8  reserved1[313-1];
+	u8  opt;
+	u8  reserved2[3];
+	u16 reserved3;
+	u16 devno;
+	u8  reserved4[4];
+	u64 wwpn;
+	u64 lun;
+	u32 bootprog;
+	u8  reserved5[12];
+	u64 br_lba;
+	u32 scp_data_len;
+	u8  reserved6[260];
+	u8  scp_data[];
+} __attribute__((packed));
+
+#define DIAG308_VMPARM_SIZE	64
+
+struct ipl_block_ccw {
+	u8  load_parm[8];
+	u8  reserved1[84];
+	u8  reserved2[2];
+	u16 devno;
+	u8  vm_flags;
+	u8  reserved3[3];
+	u32 vm_parm_len;
+	u8  nss_name[8];
+	u8  vm_parm[DIAG308_VMPARM_SIZE];
+	u8  reserved4[8];
+} __attribute__((packed));
+
+struct ipl_parameter_block {
+	struct ipl_list_hdr hdr;
+	union {
+		struct ipl_block_fcp fcp;
+		struct ipl_block_ccw ccw;
+	} ipl_info;
+} __attribute__((packed,aligned(4096)));
+
+/*
+ * IPL validity flags
+ */
+extern u32 ipl_flags;
+extern u32 dump_prefix_page;
+extern unsigned int zfcpdump_prefix_array[];
+
+extern void do_reipl(void);
+extern void do_halt(void);
+extern void do_poff(void);
+extern void ipl_save_parameters(void);
+extern void ipl_update_parameters(void);
+extern void get_ipl_vmparm(char *);
+
+enum {
+	IPL_DEVNO_VALID		= 1,
+	IPL_PARMBLOCK_VALID	= 2,
+	IPL_NSS_VALID		= 4,
+};
+
+enum ipl_type {
+	IPL_TYPE_UNKNOWN	= 1,
+	IPL_TYPE_CCW		= 2,
+	IPL_TYPE_FCP		= 4,
+	IPL_TYPE_FCP_DUMP	= 8,
+	IPL_TYPE_NSS		= 16,
+};
+
+struct ipl_info
+{
+	enum ipl_type type;
+	union {
+		struct {
+			struct ccw_dev_id dev_id;
+		} ccw;
+		struct {
+			struct ccw_dev_id dev_id;
+			u64 wwpn;
+			u64 lun;
+		} fcp;
+		struct {
+			char name[NSS_NAME_SIZE + 1];
+		} nss;
+	} data;
+};
+
+extern struct ipl_info ipl_info;
+extern void setup_ipl(void);
+
+/*
+ * DIAG 308 support
+ */
+enum diag308_subcode  {
+	DIAG308_REL_HSA	= 2,
+	DIAG308_IPL	= 3,
+	DIAG308_DUMP	= 4,
+	DIAG308_SET	= 5,
+	DIAG308_STORE	= 6,
+};
+
+enum diag308_ipl_type {
+	DIAG308_IPL_TYPE_FCP	= 0,
+	DIAG308_IPL_TYPE_CCW	= 2,
+};
+
+enum diag308_opt {
+	DIAG308_IPL_OPT_IPL	= 0x10,
+	DIAG308_IPL_OPT_DUMP	= 0x20,
+};
+
+enum diag308_flags {
+	DIAG308_FLAGS_LP_VALID	= 0x80,
+};
+
+enum diag308_vm_flags {
+	DIAG308_VM_FLAGS_NSS_VALID	= 0x80,
+	DIAG308_VM_FLAGS_VP_VALID	= 0x40,
+};
+
+enum diag308_rc {
+	DIAG308_RC_OK		= 0x0001,
+	DIAG308_RC_NOCONFIG	= 0x0102,
+};
+
+extern int diag308(unsigned long subcode, void *addr);
+
+#endif /* _ASM_S390_IPL_H */
diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h
new file mode 100644
index 00000000000..7da991a858f
--- /dev/null
+++ b/arch/s390/include/asm/irq.h
@@ -0,0 +1,23 @@
+#ifndef _ASM_IRQ_H
+#define _ASM_IRQ_H
+
+#ifdef __KERNEL__
+#include <linux/hardirq.h>
+
+/*
+ * the definition of irqs has changed in 2.5.46:
+ * NR_IRQS is no longer the number of i/o
+ * interrupts (65536), but rather the number
+ * of interrupt classes (2).
+ * Only external and i/o interrupts make much sense here (CH).
+ */
+
+enum interruption_class {
+	EXTERNAL_INTERRUPT,
+	IO_INTERRUPT,
+
+	NR_IRQS,
+};
+
+#endif /* __KERNEL__ */
+#endif
diff --git a/arch/s390/include/asm/irq_regs.h b/arch/s390/include/asm/irq_regs.h
new file mode 100644
index 00000000000..3dd9c0b7027
--- /dev/null
+++ b/arch/s390/include/asm/irq_regs.h
@@ -0,0 +1 @@
+#include <asm-generic/irq_regs.h>
diff --git a/arch/s390/include/asm/irqflags.h b/arch/s390/include/asm/irqflags.h
new file mode 100644
index 00000000000..3f26131120b
--- /dev/null
+++ b/arch/s390/include/asm/irqflags.h
@@ -0,0 +1,106 @@
+/*
+ *  include/asm-s390/irqflags.h
+ *
+ *    Copyright (C) IBM Corp. 2006
+ *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
+ */
+
+#ifndef __ASM_IRQFLAGS_H
+#define __ASM_IRQFLAGS_H
+
+#ifdef __KERNEL__
+
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+
+/* store then or system mask. */
+#define __raw_local_irq_stosm(__or)					\
+({									\
+	unsigned long __mask;						\
+	asm volatile(							\
+		"	stosm	%0,%1"					\
+		: "=Q" (__mask) : "i" (__or) : "memory");		\
+	__mask;								\
+})
+
+/* store then and system mask. */
+#define __raw_local_irq_stnsm(__and)					\
+({									\
+	unsigned long __mask;						\
+	asm volatile(							\
+		"	stnsm	%0,%1"					\
+		: "=Q" (__mask) : "i" (__and) : "memory");		\
+	__mask;								\
+})
+
+/* set system mask. */
+#define __raw_local_irq_ssm(__mask)					\
+({									\
+	asm volatile("ssm   %0" : : "Q" (__mask) : "memory");		\
+})
+
+#else /* __GNUC__ */
+
+/* store then or system mask. */
+#define __raw_local_irq_stosm(__or)					\
+({									\
+	unsigned long __mask;						\
+	asm volatile(							\
+		"	stosm	0(%1),%2"				\
+		: "=m" (__mask)						\
+		: "a" (&__mask), "i" (__or) : "memory");		\
+	__mask;								\
+})
+
+/* store then and system mask. */
+#define __raw_local_irq_stnsm(__and)					\
+({									\
+	unsigned long __mask;						\
+	asm volatile(							\
+		"	stnsm	0(%1),%2"				\
+		: "=m" (__mask)						\
+		: "a" (&__mask), "i" (__and) : "memory");		\
+	__mask;								\
+})
+
+/* set system mask. */
+#define __raw_local_irq_ssm(__mask)					\
+({									\
+	asm volatile(							\
+		"	ssm	0(%0)"					\
+		: : "a" (&__mask), "m" (__mask) : "memory");		\
+})
+
+#endif /* __GNUC__ */
+
+/* interrupt control.. */
+static inline unsigned long raw_local_irq_enable(void)
+{
+	return __raw_local_irq_stosm(0x03);
+}
+
+static inline unsigned long raw_local_irq_disable(void)
+{
+	return __raw_local_irq_stnsm(0xfc);
+}
+
+#define raw_local_save_flags(x)						\
+do {									\
+	typecheck(unsigned long, x);					\
+	(x) = __raw_local_irq_stosm(0x00);				\
+} while (0)
+
+static inline void raw_local_irq_restore(unsigned long flags)
+{
+	__raw_local_irq_ssm(flags);
+}
+
+static inline int raw_irqs_disabled_flags(unsigned long flags)
+{
+	return !(flags & (3UL << (BITS_PER_LONG - 8)));
+}
+
+/* For spinlocks etc */
+#define raw_local_irq_save(x)	((x) = raw_local_irq_disable())
+
+#endif /* __KERNEL__ */
+#endif /* __ASM_IRQFLAGS_H */
diff --git a/arch/s390/include/asm/isc.h b/arch/s390/include/asm/isc.h
new file mode 100644
index 00000000000..34bb8916db4
--- /dev/null
+++ b/arch/s390/include/asm/isc.h
@@ -0,0 +1,25 @@
+#ifndef _ASM_S390_ISC_H
+#define _ASM_S390_ISC_H
+
+#include <linux/types.h>
+
+/*
+ * I/O interruption subclasses used by drivers.
+ * Please add all used iscs here so that it is possible to distribute
+ * isc usage between drivers.
+ * Reminder: 0 is highest priority, 7 lowest.
+ */
+#define MAX_ISC 7
+
+/* Regular I/O interrupts. */
+#define IO_SCH_ISC 3			/* regular I/O subchannels */
+#define CONSOLE_ISC 1			/* console I/O subchannel */
+#define CHSC_SCH_ISC 7			/* CHSC subchannels */
+/* Adapter interrupts. */
+#define QDIO_AIRQ_ISC IO_SCH_ISC	/* I/O subchannel in qdio mode */
+
+/* Functions for registration of I/O interruption subclasses */
+void isc_register(unsigned int isc);
+void isc_unregister(unsigned int isc);
+
+#endif /* _ASM_S390_ISC_H */
diff --git a/arch/s390/include/asm/itcw.h b/arch/s390/include/asm/itcw.h
new file mode 100644
index 00000000000..a9bc5c36b32
--- /dev/null
+++ b/arch/s390/include/asm/itcw.h
@@ -0,0 +1,30 @@
+/*
+ *  Functions for incremental construction of fcx enabled I/O control blocks.
+ *
+ *    Copyright IBM Corp. 2008
+ *    Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
+ */
+
+#ifndef _ASM_S390_ITCW_H
+#define _ASM_S390_ITCW_H _ASM_S390_ITCW_H
+
+#include <linux/types.h>
+#include <asm/fcx.h>
+
+#define ITCW_OP_READ	0
+#define ITCW_OP_WRITE	1
+
+struct itcw;
+
+struct tcw *itcw_get_tcw(struct itcw *itcw);
+size_t itcw_calc_size(int intrg, int max_tidaws, int intrg_max_tidaws);
+struct itcw *itcw_init(void *buffer, size_t size, int op, int intrg,
+		       int max_tidaws, int intrg_max_tidaws);
+struct dcw *itcw_add_dcw(struct itcw *itcw, u8 cmd, u8 flags, void *cd,
+			 u8 cd_count, u32 count);
+struct tidaw *itcw_add_tidaw(struct itcw *itcw, u8 flags, void *addr,
+			     u32 count);
+void itcw_set_data(struct itcw *itcw, void *addr, int use_tidal);
+void itcw_finalize(struct itcw *itcw);
+
+#endif /* _ASM_S390_ITCW_H */
diff --git a/arch/s390/include/asm/kdebug.h b/arch/s390/include/asm/kdebug.h
new file mode 100644
index 00000000000..40db27cd6e6
--- /dev/null
+++ b/arch/s390/include/asm/kdebug.h
@@ -0,0 +1,27 @@
+#ifndef _S390_KDEBUG_H
+#define _S390_KDEBUG_H
+
+/*
+ * Feb 2006 Ported to s390 <grundym@us.ibm.com>
+ */
+
+struct pt_regs;
+
+enum die_val {
+	DIE_OOPS = 1,
+	DIE_BPT,
+	DIE_SSTEP,
+	DIE_PANIC,
+	DIE_NMI,
+	DIE_DIE,
+	DIE_NMIWATCHDOG,
+	DIE_KERNELDEBUG,
+	DIE_TRAP,
+	DIE_GPF,
+	DIE_CALL,
+	DIE_NMI_IPI,
+};
+
+extern void die(const char *, struct pt_regs *, long);
+
+#endif
diff --git a/arch/s390/include/asm/kexec.h b/arch/s390/include/asm/kexec.h
new file mode 100644
index 00000000000..bb729b84a21
--- /dev/null
+++ b/arch/s390/include/asm/kexec.h
@@ -0,0 +1,43 @@
+/*
+ * include/asm-s390/kexec.h
+ *
+ * (C) Copyright IBM Corp. 2005
+ *
+ * Author(s): Rolf Adelsberger <adelsberger@de.ibm.com>
+ *
+ */
+
+#ifndef _S390_KEXEC_H
+#define _S390_KEXEC_H
+
+#ifdef __KERNEL__
+#include <asm/page.h>
+#endif
+#include <asm/processor.h>
+/*
+ * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return.
+ * I.e. Maximum page that is mapped directly into kernel memory,
+ * and kmap is not required.
+ */
+
+/* Maximum physical address we can use pages from */
+#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
+
+/* Maximum address we can reach in physical address mode */
+#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
+
+/* Maximum address we can use for the control pages */
+/* Not more than 2GB */
+#define KEXEC_CONTROL_MEMORY_LIMIT (1UL<<31)
+
+/* Allocate one page for the pdp and the second for the code */
+#define KEXEC_CONTROL_PAGE_SIZE 4096
+
+/* The native architecture */
+#define KEXEC_ARCH KEXEC_ARCH_S390
+
+/* Provide a dummy definition to avoid build failures. */
+static inline void crash_setup_regs(struct pt_regs *newregs,
+					struct pt_regs *oldregs) { }
+
+#endif /*_S390_KEXEC_H */
diff --git a/arch/s390/include/asm/kmap_types.h b/arch/s390/include/asm/kmap_types.h
new file mode 100644
index 00000000000..fd157464822
--- /dev/null
+++ b/arch/s390/include/asm/kmap_types.h
@@ -0,0 +1,23 @@
+#ifdef __KERNEL__
+#ifndef _ASM_KMAP_TYPES_H
+#define _ASM_KMAP_TYPES_H
+
+enum km_type {
+	KM_BOUNCE_READ,
+	KM_SKB_SUNRPC_DATA,
+	KM_SKB_DATA_SOFTIRQ,
+	KM_USER0,
+	KM_USER1,
+	KM_BIO_SRC_IRQ,
+	KM_BIO_DST_IRQ,
+	KM_PTE0,
+	KM_PTE1,
+	KM_IRQ0,
+	KM_IRQ1,
+	KM_SOFTIRQ0,
+	KM_SOFTIRQ1,	
+	KM_TYPE_NR
+};
+
+#endif
+#endif /* __KERNEL__ */
diff --git a/arch/s390/include/asm/kprobes.h b/arch/s390/include/asm/kprobes.h
new file mode 100644
index 00000000000..330f68caffe
--- /dev/null
+++ b/arch/s390/include/asm/kprobes.h
@@ -0,0 +1,103 @@
+#ifndef _ASM_S390_KPROBES_H
+#define _ASM_S390_KPROBES_H
+/*
+ *  Kernel Probes (KProbes)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2002, 2006
+ *
+ * 2002-Oct	Created by Vamsi Krishna S <vamsi_krishna@in.ibm.com> Kernel
+ *		Probes initial implementation ( includes suggestions from
+ *		Rusty Russell).
+ * 2004-Nov	Modified for PPC64 by Ananth N Mavinakayanahalli
+ *		<ananth@in.ibm.com>
+ * 2005-Dec	Used as a template for s390 by Mike Grundy
+ *		<grundym@us.ibm.com>
+ */
+#include <linux/types.h>
+#include <linux/ptrace.h>
+#include <linux/percpu.h>
+
+#define  __ARCH_WANT_KPROBES_INSN_SLOT
+struct pt_regs;
+struct kprobe;
+
+typedef u16 kprobe_opcode_t;
+#define BREAKPOINT_INSTRUCTION	0x0002
+
+/* Maximum instruction size is 3 (16bit) halfwords: */
+#define MAX_INSN_SIZE		0x0003
+#define MAX_STACK_SIZE		64
+#define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \
+	(((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) \
+	? (MAX_STACK_SIZE) \
+	: (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR)))
+
+#define kretprobe_blacklist_size 0
+
+#define KPROBE_SWAP_INST	0x10
+
+#define FIXUP_PSW_NORMAL	0x08
+#define FIXUP_BRANCH_NOT_TAKEN	0x04
+#define FIXUP_RETURN_REGISTER	0x02
+#define FIXUP_NOT_REQUIRED	0x01
+
+/* Architecture specific copy of original instruction */
+struct arch_specific_insn {
+	/* copy of original instruction */
+	kprobe_opcode_t *insn;
+	int fixup;
+	int ilen;
+	int reg;
+};
+
+struct ins_replace_args {
+	kprobe_opcode_t *ptr;
+	kprobe_opcode_t old;
+	kprobe_opcode_t new;
+};
+struct prev_kprobe {
+	struct kprobe *kp;
+	unsigned long status;
+	unsigned long saved_psw;
+	unsigned long kprobe_saved_imask;
+	unsigned long kprobe_saved_ctl[3];
+};
+
+/* per-cpu kprobe control block */
+struct kprobe_ctlblk {
+	unsigned long kprobe_status;
+	unsigned long kprobe_saved_imask;
+	unsigned long kprobe_saved_ctl[3];
+	struct pt_regs jprobe_saved_regs;
+	unsigned long jprobe_saved_r14;
+	unsigned long jprobe_saved_r15;
+	struct prev_kprobe prev_kprobe;
+	kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE];
+};
+
+void arch_remove_kprobe(struct kprobe *p);
+void kretprobe_trampoline(void);
+int  is_prohibited_opcode(kprobe_opcode_t *instruction);
+void get_instruction_type(struct arch_specific_insn *ainsn);
+
+int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
+int kprobe_exceptions_notify(struct notifier_block *self,
+	unsigned long val, void *data);
+
+#define flush_insn_slot(p)	do { } while (0)
+
+#endif	/* _ASM_S390_KPROBES_H */
diff --git a/arch/s390/include/asm/kvm.h b/arch/s390/include/asm/kvm.h
new file mode 100644
index 00000000000..d74002f9579
--- /dev/null
+++ b/arch/s390/include/asm/kvm.h
@@ -0,0 +1,45 @@
+#ifndef __LINUX_KVM_S390_H
+#define __LINUX_KVM_S390_H
+
+/*
+ * asm-s390/kvm.h - KVM s390 specific structures and definitions
+ *
+ * Copyright IBM Corp. 2008
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ *
+ *    Author(s): Carsten Otte <cotte@de.ibm.com>
+ *               Christian Borntraeger <borntraeger@de.ibm.com>
+ */
+#include <asm/types.h>
+
+/* for KVM_GET_IRQCHIP and KVM_SET_IRQCHIP */
+struct kvm_pic_state {
+	/* no PIC for s390 */
+};
+
+struct kvm_ioapic_state {
+	/* no IOAPIC for s390 */
+};
+
+/* for KVM_GET_REGS and KVM_SET_REGS */
+struct kvm_regs {
+	/* general purpose regs for s390 */
+	__u64 gprs[16];
+};
+
+/* for KVM_GET_SREGS and KVM_SET_SREGS */
+struct kvm_sregs {
+	__u32 acrs[16];
+	__u64 crs[16];
+};
+
+/* for KVM_GET_FPU and KVM_SET_FPU */
+struct kvm_fpu {
+	__u32 fpc;
+	__u64 fprs[16];
+};
+
+#endif
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
new file mode 100644
index 00000000000..3c55e4107dc
--- /dev/null
+++ b/arch/s390/include/asm/kvm_host.h
@@ -0,0 +1,235 @@
+/*
+ * asm-s390/kvm_host.h - definition for kernel virtual machines on s390
+ *
+ * Copyright IBM Corp. 2008
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ *
+ *    Author(s): Carsten Otte <cotte@de.ibm.com>
+ */
+
+
+#ifndef ASM_KVM_HOST_H
+#define ASM_KVM_HOST_H
+#include <linux/kvm_host.h>
+#include <asm/debug.h>
+
+#define KVM_MAX_VCPUS 64
+#define KVM_MEMORY_SLOTS 32
+/* memory slots that does not exposed to userspace */
+#define KVM_PRIVATE_MEM_SLOTS 4
+
+struct kvm_guest_debug {
+};
+
+struct sca_entry {
+	atomic_t scn;
+	__u64	reserved;
+	__u64	sda;
+	__u64	reserved2[2];
+} __attribute__((packed));
+
+
+struct sca_block {
+	__u64	ipte_control;
+	__u64	reserved[5];
+	__u64	mcn;
+	__u64	reserved2;
+	struct sca_entry cpu[64];
+} __attribute__((packed));
+
+#define KVM_PAGES_PER_HPAGE 256
+
+#define CPUSTAT_HOST       0x80000000
+#define CPUSTAT_WAIT       0x10000000
+#define CPUSTAT_ECALL_PEND 0x08000000
+#define CPUSTAT_STOP_INT   0x04000000
+#define CPUSTAT_IO_INT     0x02000000
+#define CPUSTAT_EXT_INT    0x01000000
+#define CPUSTAT_RUNNING    0x00800000
+#define CPUSTAT_RETAINED   0x00400000
+#define CPUSTAT_TIMING_SUB 0x00020000
+#define CPUSTAT_SIE_SUB    0x00010000
+#define CPUSTAT_RRF        0x00008000
+#define CPUSTAT_SLSV       0x00004000
+#define CPUSTAT_SLSR       0x00002000
+#define CPUSTAT_ZARCH      0x00000800
+#define CPUSTAT_MCDS       0x00000100
+#define CPUSTAT_SM         0x00000080
+#define CPUSTAT_G          0x00000008
+#define CPUSTAT_J          0x00000002
+#define CPUSTAT_P          0x00000001
+
+struct kvm_s390_sie_block {
+	atomic_t cpuflags;		/* 0x0000 */
+	__u32	prefix;			/* 0x0004 */
+	__u8	reserved8[32];		/* 0x0008 */
+	__u64	cputm;			/* 0x0028 */
+	__u64	ckc;			/* 0x0030 */
+	__u64	epoch;			/* 0x0038 */
+	__u8	reserved40[4];		/* 0x0040 */
+#define LCTL_CR0	0x8000
+	__u16   lctl;			/* 0x0044 */
+	__s16	icpua;			/* 0x0046 */
+	__u32	ictl;			/* 0x0048 */
+	__u32	eca;			/* 0x004c */
+	__u8	icptcode;		/* 0x0050 */
+	__u8	reserved51;		/* 0x0051 */
+	__u16	ihcpu;			/* 0x0052 */
+	__u8	reserved54[2];		/* 0x0054 */
+	__u16	ipa;			/* 0x0056 */
+	__u32	ipb;			/* 0x0058 */
+	__u32	scaoh;			/* 0x005c */
+	__u8	reserved60;		/* 0x0060 */
+	__u8	ecb;			/* 0x0061 */
+	__u8	reserved62[2];		/* 0x0062 */
+	__u32	scaol;			/* 0x0064 */
+	__u8	reserved68[4];		/* 0x0068 */
+	__u32	todpr;			/* 0x006c */
+	__u8	reserved70[16];		/* 0x0070 */
+	__u64	gmsor;			/* 0x0080 */
+	__u64	gmslm;			/* 0x0088 */
+	psw_t	gpsw;			/* 0x0090 */
+	__u64	gg14;			/* 0x00a0 */
+	__u64	gg15;			/* 0x00a8 */
+	__u8	reservedb0[30];		/* 0x00b0 */
+	__u16   iprcc;			/* 0x00ce */
+	__u8	reservedd0[48];		/* 0x00d0 */
+	__u64	gcr[16];		/* 0x0100 */
+	__u64	gbea;			/* 0x0180 */
+	__u8	reserved188[120];	/* 0x0188 */
+} __attribute__((packed));
+
+struct kvm_vcpu_stat {
+	u32 exit_userspace;
+	u32 exit_null;
+	u32 exit_external_request;
+	u32 exit_external_interrupt;
+	u32 exit_stop_request;
+	u32 exit_validity;
+	u32 exit_instruction;
+	u32 instruction_lctl;
+	u32 instruction_lctlg;
+	u32 exit_program_interruption;
+	u32 exit_instr_and_program;
+	u32 deliver_emergency_signal;
+	u32 deliver_service_signal;
+	u32 deliver_virtio_interrupt;
+	u32 deliver_stop_signal;
+	u32 deliver_prefix_signal;
+	u32 deliver_restart_signal;
+	u32 deliver_program_int;
+	u32 exit_wait_state;
+	u32 instruction_stidp;
+	u32 instruction_spx;
+	u32 instruction_stpx;
+	u32 instruction_stap;
+	u32 instruction_storage_key;
+	u32 instruction_stsch;
+	u32 instruction_chsc;
+	u32 instruction_stsi;
+	u32 instruction_stfl;
+	u32 instruction_sigp_sense;
+	u32 instruction_sigp_emergency;
+	u32 instruction_sigp_stop;
+	u32 instruction_sigp_arch;
+	u32 instruction_sigp_prefix;
+	u32 instruction_sigp_restart;
+	u32 diagnose_44;
+};
+
+struct kvm_s390_io_info {
+	__u16        subchannel_id;            /* 0x0b8 */
+	__u16        subchannel_nr;            /* 0x0ba */
+	__u32        io_int_parm;              /* 0x0bc */
+	__u32        io_int_word;              /* 0x0c0 */
+};
+
+struct kvm_s390_ext_info {
+	__u32 ext_params;
+	__u64 ext_params2;
+};
+
+#define PGM_OPERATION            0x01
+#define PGM_PRIVILEGED_OPERATION 0x02
+#define PGM_EXECUTE              0x03
+#define PGM_PROTECTION           0x04
+#define PGM_ADDRESSING           0x05
+#define PGM_SPECIFICATION        0x06
+#define PGM_DATA                 0x07
+
+struct kvm_s390_pgm_info {
+	__u16 code;
+};
+
+struct kvm_s390_prefix_info {
+	__u32 address;
+};
+
+struct kvm_s390_interrupt_info {
+	struct list_head list;
+	u64	type;
+	union {
+		struct kvm_s390_io_info io;
+		struct kvm_s390_ext_info ext;
+		struct kvm_s390_pgm_info pgm;
+		struct kvm_s390_prefix_info prefix;
+	};
+};
+
+/* for local_interrupt.action_flags */
+#define ACTION_STORE_ON_STOP 1
+#define ACTION_STOP_ON_STOP  2
+
+struct kvm_s390_local_interrupt {
+	spinlock_t lock;
+	struct list_head list;
+	atomic_t active;
+	struct kvm_s390_float_interrupt *float_int;
+	int timer_due; /* event indicator for waitqueue below */
+	wait_queue_head_t wq;
+	atomic_t *cpuflags;
+	unsigned int action_bits;
+};
+
+struct kvm_s390_float_interrupt {
+	spinlock_t lock;
+	struct list_head list;
+	atomic_t active;
+	int next_rr_cpu;
+	unsigned long idle_mask [(64 + sizeof(long) - 1) / sizeof(long)];
+	struct kvm_s390_local_interrupt *local_int[64];
+};
+
+
+struct kvm_vcpu_arch {
+	struct kvm_s390_sie_block *sie_block;
+	unsigned long	  guest_gprs[16];
+	s390_fp_regs      host_fpregs;
+	unsigned int      host_acrs[NUM_ACRS];
+	s390_fp_regs      guest_fpregs;
+	unsigned int      guest_acrs[NUM_ACRS];
+	struct kvm_s390_local_interrupt local_int;
+	struct timer_list ckc_timer;
+	union  {
+		cpuid_t	  cpu_id;
+		u64	  stidp_data;
+	};
+};
+
+struct kvm_vm_stat {
+	u32 remote_tlb_flush;
+};
+
+struct kvm_arch{
+	unsigned long guest_origin;
+	unsigned long guest_memsize;
+	struct sca_block *sca;
+	debug_info_t *dbf;
+	struct kvm_s390_float_interrupt float_int;
+};
+
+extern int sie64a(struct kvm_s390_sie_block *, unsigned long *);
+#endif
diff --git a/arch/s390/include/asm/kvm_para.h b/arch/s390/include/asm/kvm_para.h
new file mode 100644
index 00000000000..2c503796b61
--- /dev/null
+++ b/arch/s390/include/asm/kvm_para.h
@@ -0,0 +1,150 @@
+/*
+ * asm-s390/kvm_para.h - definition for paravirtual devices on s390
+ *
+ * Copyright IBM Corp. 2008
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ *
+ *    Author(s): Christian Borntraeger <borntraeger@de.ibm.com>
+ */
+
+#ifndef __S390_KVM_PARA_H
+#define __S390_KVM_PARA_H
+
+/*
+ * Hypercalls for KVM on s390. The calling convention is similar to the
+ * s390 ABI, so we use R2-R6 for parameters 1-5. In addition we use R1
+ * as hypercall number and R7 as parameter 6. The return value is
+ * written to R2. We use the diagnose instruction as hypercall. To avoid
+ * conflicts with existing diagnoses for LPAR and z/VM, we do not use
+ * the instruction encoded number, but specify the number in R1 and
+ * use 0x500 as KVM hypercall
+ *
+ * Copyright IBM Corp. 2007,2008
+ * Author(s): Christian Borntraeger <borntraeger@de.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.
+ */
+
+static inline long kvm_hypercall0(unsigned long nr)
+{
+	register unsigned long __nr asm("1") = nr;
+	register long __rc asm("2");
+
+	asm volatile ("diag 2,4,0x500\n"
+		      : "=d" (__rc) : "d" (__nr): "memory", "cc");
+	return __rc;
+}
+
+static inline long kvm_hypercall1(unsigned long nr, unsigned long p1)
+{
+	register unsigned long __nr asm("1") = nr;
+	register unsigned long __p1 asm("2") = p1;
+	register long __rc asm("2");
+
+	asm volatile ("diag 2,4,0x500\n"
+		      : "=d" (__rc) : "d" (__nr), "0" (__p1) : "memory", "cc");
+	return __rc;
+}
+
+static inline long kvm_hypercall2(unsigned long nr, unsigned long p1,
+			       unsigned long p2)
+{
+	register unsigned long __nr asm("1") = nr;
+	register unsigned long __p1 asm("2") = p1;
+	register unsigned long __p2 asm("3") = p2;
+	register long __rc asm("2");
+
+	asm volatile ("diag 2,4,0x500\n"
+		      : "=d" (__rc) : "d" (__nr), "0" (__p1), "d" (__p2)
+		      : "memory", "cc");
+	return __rc;
+}
+
+static inline long kvm_hypercall3(unsigned long nr, unsigned long p1,
+			       unsigned long p2, unsigned long p3)
+{
+	register unsigned long __nr asm("1") = nr;
+	register unsigned long __p1 asm("2") = p1;
+	register unsigned long __p2 asm("3") = p2;
+	register unsigned long __p3 asm("4") = p3;
+	register long __rc asm("2");
+
+	asm volatile ("diag 2,4,0x500\n"
+		      : "=d" (__rc) : "d" (__nr), "0" (__p1), "d" (__p2),
+			"d" (__p3) : "memory", "cc");
+	return __rc;
+}
+
+
+static inline long kvm_hypercall4(unsigned long nr, unsigned long p1,
+			       unsigned long p2, unsigned long p3,
+			       unsigned long p4)
+{
+	register unsigned long __nr asm("1") = nr;
+	register unsigned long __p1 asm("2") = p1;
+	register unsigned long __p2 asm("3") = p2;
+	register unsigned long __p3 asm("4") = p3;
+	register unsigned long __p4 asm("5") = p4;
+	register long __rc asm("2");
+
+	asm volatile ("diag 2,4,0x500\n"
+		      : "=d" (__rc) : "d" (__nr), "0" (__p1), "d" (__p2),
+			"d" (__p3), "d" (__p4) : "memory", "cc");
+	return __rc;
+}
+
+static inline long kvm_hypercall5(unsigned long nr, unsigned long p1,
+			       unsigned long p2, unsigned long p3,
+			       unsigned long p4, unsigned long p5)
+{
+	register unsigned long __nr asm("1") = nr;
+	register unsigned long __p1 asm("2") = p1;
+	register unsigned long __p2 asm("3") = p2;
+	register unsigned long __p3 asm("4") = p3;
+	register unsigned long __p4 asm("5") = p4;
+	register unsigned long __p5 asm("6") = p5;
+	register long __rc asm("2");
+
+	asm volatile ("diag 2,4,0x500\n"
+		      : "=d" (__rc) : "d" (__nr), "0" (__p1), "d" (__p2),
+			"d" (__p3), "d" (__p4), "d" (__p5)  : "memory", "cc");
+	return __rc;
+}
+
+static inline long kvm_hypercall6(unsigned long nr, unsigned long p1,
+			       unsigned long p2, unsigned long p3,
+			       unsigned long p4, unsigned long p5,
+			       unsigned long p6)
+{
+	register unsigned long __nr asm("1") = nr;
+	register unsigned long __p1 asm("2") = p1;
+	register unsigned long __p2 asm("3") = p2;
+	register unsigned long __p3 asm("4") = p3;
+	register unsigned long __p4 asm("5") = p4;
+	register unsigned long __p5 asm("6") = p5;
+	register unsigned long __p6 asm("7") = p6;
+	register long __rc asm("2");
+
+	asm volatile ("diag 2,4,0x500\n"
+		      : "=d" (__rc) : "d" (__nr), "0" (__p1), "d" (__p2),
+			"d" (__p3), "d" (__p4), "d" (__p5), "d" (__p6)
+		      : "memory", "cc");
+	return __rc;
+}
+
+/* kvm on s390 is always paravirtualization enabled */
+static inline int kvm_para_available(void)
+{
+	return 1;
+}
+
+/* No feature bits are currently assigned for kvm on s390 */
+static inline unsigned int kvm_arch_para_features(void)
+{
+	return 0;
+}
+
+#endif /* __S390_KVM_PARA_H */
diff --git a/arch/s390/include/asm/kvm_virtio.h b/arch/s390/include/asm/kvm_virtio.h
new file mode 100644
index 00000000000..146100224de
--- /dev/null
+++ b/arch/s390/include/asm/kvm_virtio.h
@@ -0,0 +1,63 @@
+/*
+ * kvm_virtio.h - definition for virtio for kvm on s390
+ *
+ * Copyright IBM Corp. 2008
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ *
+ *    Author(s): Christian Borntraeger <borntraeger@de.ibm.com>
+ */
+
+#ifndef __KVM_S390_VIRTIO_H
+#define __KVM_S390_VIRTIO_H
+
+#include <linux/types.h>
+
+struct kvm_device_desc {
+	/* The device type: console, network, disk etc.  Type 0 terminates. */
+	__u8 type;
+	/* The number of virtqueues (first in config array) */
+	__u8 num_vq;
+	/*
+	 * The number of bytes of feature bits.  Multiply by 2: one for host
+	 * features and one for guest acknowledgements.
+	 */
+	__u8 feature_len;
+	/* The number of bytes of the config array after virtqueues. */
+	__u8 config_len;
+	/* A status byte, written by the Guest. */
+	__u8 status;
+	__u8 config[0];
+};
+
+/*
+ * This is how we expect the device configuration field for a virtqueue
+ * to be laid out in config space.
+ */
+struct kvm_vqconfig {
+	/* The token returned with an interrupt. Set by the guest */
+	__u64 token;
+	/* The address of the virtio ring */
+	__u64 address;
+	/* The number of entries in the virtio_ring */
+	__u16 num;
+
+};
+
+#define KVM_S390_VIRTIO_NOTIFY		0
+#define KVM_S390_VIRTIO_RESET		1
+#define KVM_S390_VIRTIO_SET_STATUS	2
+
+#ifdef __KERNEL__
+/* early virtio console setup */
+#ifdef CONFIG_VIRTIO_CONSOLE
+extern void s390_virtio_console_init(void);
+#else
+static inline void s390_virtio_console_init(void)
+{
+}
+#endif /* CONFIG_VIRTIO_CONSOLE */
+#endif /* __KERNEL__ */
+#endif
diff --git a/arch/s390/include/asm/linkage.h b/arch/s390/include/asm/linkage.h
new file mode 100644
index 00000000000..291c2d01c44
--- /dev/null
+++ b/arch/s390/include/asm/linkage.h
@@ -0,0 +1,6 @@
+#ifndef __ASM_LINKAGE_H
+#define __ASM_LINKAGE_H
+
+/* Nothing to see here... */
+
+#endif
diff --git a/arch/s390/include/asm/local.h b/arch/s390/include/asm/local.h
new file mode 100644
index 00000000000..c11c530f74d
--- /dev/null
+++ b/arch/s390/include/asm/local.h
@@ -0,0 +1 @@
+#include <asm-generic/local.h>
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
new file mode 100644
index 00000000000..0bc51d52a89
--- /dev/null
+++ b/arch/s390/include/asm/lowcore.h
@@ -0,0 +1,433 @@
+/*
+ *  include/asm-s390/lowcore.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Hartmut Penner (hp@de.ibm.com),
+ *               Martin Schwidefsky (schwidefsky@de.ibm.com),
+ *               Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
+ */
+
+#ifndef _ASM_S390_LOWCORE_H
+#define _ASM_S390_LOWCORE_H
+
+#ifndef __s390x__
+#define __LC_EXT_OLD_PSW                0x018
+#define __LC_SVC_OLD_PSW                0x020
+#define __LC_PGM_OLD_PSW                0x028
+#define __LC_MCK_OLD_PSW                0x030
+#define __LC_IO_OLD_PSW                 0x038
+#define __LC_EXT_NEW_PSW                0x058
+#define __LC_SVC_NEW_PSW                0x060
+#define __LC_PGM_NEW_PSW                0x068
+#define __LC_MCK_NEW_PSW                0x070
+#define __LC_IO_NEW_PSW                 0x078
+#else /* !__s390x__ */
+#define __LC_EXT_OLD_PSW                0x0130
+#define __LC_SVC_OLD_PSW                0x0140
+#define __LC_PGM_OLD_PSW                0x0150
+#define __LC_MCK_OLD_PSW                0x0160
+#define __LC_IO_OLD_PSW                 0x0170
+#define __LC_EXT_NEW_PSW                0x01b0
+#define __LC_SVC_NEW_PSW                0x01c0
+#define __LC_PGM_NEW_PSW                0x01d0
+#define __LC_MCK_NEW_PSW                0x01e0
+#define __LC_IO_NEW_PSW                 0x01f0
+#endif /* !__s390x__ */
+
+#define __LC_IPL_PARMBLOCK_PTR		0x014
+#define __LC_EXT_PARAMS                 0x080
+#define __LC_CPU_ADDRESS                0x084
+#define __LC_EXT_INT_CODE               0x086
+
+#define __LC_SVC_ILC                    0x088
+#define __LC_SVC_INT_CODE               0x08A
+#define __LC_PGM_ILC                    0x08C
+#define __LC_PGM_INT_CODE               0x08E
+
+#define __LC_PER_ATMID			0x096
+#define __LC_PER_ADDRESS		0x098
+#define __LC_PER_ACCESS_ID		0x0A1
+#define __LC_AR_MODE_ID			0x0A3
+
+#define __LC_SUBCHANNEL_ID              0x0B8
+#define __LC_SUBCHANNEL_NR              0x0BA
+#define __LC_IO_INT_PARM                0x0BC
+#define __LC_IO_INT_WORD                0x0C0
+#define __LC_MCCK_CODE                  0x0E8
+
+#define __LC_LAST_BREAK 		0x110
+
+#define __LC_RETURN_PSW                 0x200
+
+#define __LC_SAVE_AREA                  0xC00
+
+#ifndef __s390x__
+#define __LC_IRB			0x208
+#define __LC_SYNC_ENTER_TIMER		0x248
+#define __LC_ASYNC_ENTER_TIMER		0x250
+#define __LC_EXIT_TIMER			0x258
+#define __LC_LAST_UPDATE_TIMER		0x260
+#define __LC_USER_TIMER			0x268
+#define __LC_SYSTEM_TIMER		0x270
+#define __LC_LAST_UPDATE_CLOCK		0x278
+#define __LC_STEAL_CLOCK		0x280
+#define __LC_RETURN_MCCK_PSW            0x288
+#define __LC_KERNEL_STACK               0xC40
+#define __LC_THREAD_INFO		0xC44
+#define __LC_ASYNC_STACK                0xC48
+#define __LC_KERNEL_ASCE		0xC4C
+#define __LC_USER_ASCE			0xC50
+#define __LC_PANIC_STACK                0xC54
+#define __LC_CPUID                      0xC60
+#define __LC_CPUADDR                    0xC68
+#define __LC_IPLDEV                     0xC7C
+#define __LC_CURRENT			0xC90
+#define __LC_INT_CLOCK			0xC98
+#else /* __s390x__ */
+#define __LC_IRB			0x210
+#define __LC_SYNC_ENTER_TIMER		0x250
+#define __LC_ASYNC_ENTER_TIMER		0x258
+#define __LC_EXIT_TIMER			0x260
+#define __LC_LAST_UPDATE_TIMER		0x268
+#define __LC_USER_TIMER			0x270
+#define __LC_SYSTEM_TIMER		0x278
+#define __LC_LAST_UPDATE_CLOCK		0x280
+#define __LC_STEAL_CLOCK		0x288
+#define __LC_RETURN_MCCK_PSW            0x290
+#define __LC_KERNEL_STACK               0xD40
+#define __LC_THREAD_INFO		0xD48
+#define __LC_ASYNC_STACK                0xD50
+#define __LC_KERNEL_ASCE		0xD58
+#define __LC_USER_ASCE			0xD60
+#define __LC_PANIC_STACK                0xD68
+#define __LC_CPUID			0xD80
+#define __LC_CPUADDR			0xD88
+#define __LC_IPLDEV                     0xDB8
+#define __LC_CURRENT			0xDD8
+#define __LC_INT_CLOCK			0xDE8
+#endif /* __s390x__ */
+
+
+#define __LC_PANIC_MAGIC		0xE00
+#ifndef __s390x__
+#define __LC_PFAULT_INTPARM             0x080
+#define __LC_CPU_TIMER_SAVE_AREA        0x0D8
+#define __LC_CLOCK_COMP_SAVE_AREA	0x0E0
+#define __LC_PSW_SAVE_AREA		0x100
+#define __LC_PREFIX_SAVE_AREA		0x108
+#define __LC_AREGS_SAVE_AREA            0x120
+#define __LC_FPREGS_SAVE_AREA		0x160
+#define __LC_GPREGS_SAVE_AREA           0x180
+#define __LC_CREGS_SAVE_AREA            0x1C0
+#else /* __s390x__ */
+#define __LC_PFAULT_INTPARM             0x11B8
+#define __LC_FPREGS_SAVE_AREA		0x1200
+#define __LC_GPREGS_SAVE_AREA           0x1280
+#define __LC_PSW_SAVE_AREA		0x1300
+#define __LC_PREFIX_SAVE_AREA		0x1318
+#define __LC_FP_CREG_SAVE_AREA		0x131C
+#define __LC_TODREG_SAVE_AREA		0x1324
+#define __LC_CPU_TIMER_SAVE_AREA        0x1328
+#define __LC_CLOCK_COMP_SAVE_AREA	0x1331
+#define __LC_AREGS_SAVE_AREA            0x1340
+#define __LC_CREGS_SAVE_AREA            0x1380
+#endif /* __s390x__ */
+
+#ifndef __ASSEMBLY__
+
+#include <asm/processor.h>
+#include <linux/types.h>
+#include <asm/sigp.h>
+
+void restart_int_handler(void);
+void ext_int_handler(void);
+void system_call(void);
+void pgm_check_handler(void);
+void mcck_int_handler(void);
+void io_int_handler(void);
+
+struct save_area_s390 {
+	u32	ext_save;
+	u64	timer;
+	u64	clk_cmp;
+	u8	pad1[24];
+	u8	psw[8];
+	u32	pref_reg;
+	u8	pad2[20];
+	u32	acc_regs[16];
+	u64	fp_regs[4];
+	u32	gp_regs[16];
+	u32	ctrl_regs[16];
+}  __attribute__((packed));
+
+struct save_area_s390x {
+	u64	fp_regs[16];
+	u64	gp_regs[16];
+	u8	psw[16];
+	u8	pad1[8];
+	u32	pref_reg;
+	u32	fp_ctrl_reg;
+	u8	pad2[4];
+	u32	tod_reg;
+	u64	timer;
+	u64	clk_cmp;
+	u8	pad3[8];
+	u32	acc_regs[16];
+	u64	ctrl_regs[16];
+}  __attribute__((packed));
+
+union save_area {
+	struct save_area_s390	s390;
+	struct save_area_s390x	s390x;
+};
+
+#define SAVE_AREA_BASE_S390	0xd4
+#define SAVE_AREA_BASE_S390X	0x1200
+
+#ifndef __s390x__
+#define SAVE_AREA_SIZE sizeof(struct save_area_s390)
+#define SAVE_AREA_BASE SAVE_AREA_BASE_S390
+#else
+#define SAVE_AREA_SIZE sizeof(struct save_area_s390x)
+#define SAVE_AREA_BASE SAVE_AREA_BASE_S390X
+#endif
+
+struct _lowcore
+{
+#ifndef __s390x__
+        /* prefix area: defined by architecture */
+	psw_t        restart_psw;              /* 0x000 */
+	__u32        ccw2[4];                  /* 0x008 */
+	psw_t        external_old_psw;         /* 0x018 */
+	psw_t        svc_old_psw;              /* 0x020 */
+	psw_t        program_old_psw;          /* 0x028 */
+	psw_t        mcck_old_psw;             /* 0x030 */
+	psw_t        io_old_psw;               /* 0x038 */
+	__u8         pad1[0x58-0x40];          /* 0x040 */
+	psw_t        external_new_psw;         /* 0x058 */
+	psw_t        svc_new_psw;              /* 0x060 */
+	psw_t        program_new_psw;          /* 0x068 */
+	psw_t        mcck_new_psw;             /* 0x070 */
+	psw_t        io_new_psw;               /* 0x078 */
+	__u32        ext_params;               /* 0x080 */
+	__u16        cpu_addr;                 /* 0x084 */
+	__u16        ext_int_code;             /* 0x086 */
+        __u16        svc_ilc;                  /* 0x088 */
+        __u16        svc_code;                 /* 0x08a */
+        __u16        pgm_ilc;                  /* 0x08c */
+        __u16        pgm_code;                 /* 0x08e */
+	__u32        trans_exc_code;           /* 0x090 */
+	__u16        mon_class_num;            /* 0x094 */
+	__u16        per_perc_atmid;           /* 0x096 */
+	__u32        per_address;              /* 0x098 */
+	__u32        monitor_code;             /* 0x09c */
+	__u8         exc_access_id;            /* 0x0a0 */
+	__u8         per_access_id;            /* 0x0a1 */
+	__u8         pad2[0xB8-0xA2];          /* 0x0a2 */
+	__u16        subchannel_id;            /* 0x0b8 */
+	__u16        subchannel_nr;            /* 0x0ba */
+	__u32        io_int_parm;              /* 0x0bc */
+	__u32        io_int_word;              /* 0x0c0 */
+	__u8	     pad3[0xc8-0xc4];	       /* 0x0c4 */
+	__u32	     stfl_fac_list;	       /* 0x0c8 */
+	__u8	     pad4[0xd4-0xcc];	       /* 0x0cc */
+	__u32        extended_save_area_addr;  /* 0x0d4 */
+	__u32        cpu_timer_save_area[2];   /* 0x0d8 */
+	__u32        clock_comp_save_area[2];  /* 0x0e0 */
+	__u32        mcck_interruption_code[2]; /* 0x0e8 */
+	__u8	     pad5[0xf4-0xf0];	       /* 0x0f0 */
+	__u32        external_damage_code;     /* 0x0f4 */
+	__u32        failing_storage_address;  /* 0x0f8 */
+	__u8	     pad6[0x100-0xfc];	       /* 0x0fc */
+	__u32        st_status_fixed_logout[4];/* 0x100 */
+	__u8	     pad7[0x120-0x110];        /* 0x110 */
+	__u32        access_regs_save_area[16];/* 0x120 */
+	__u32        floating_pt_save_area[8]; /* 0x160 */
+	__u32        gpregs_save_area[16];     /* 0x180 */
+	__u32        cregs_save_area[16];      /* 0x1c0 */	
+
+        psw_t        return_psw;               /* 0x200 */
+	__u8	     irb[64];		       /* 0x208 */
+	__u64        sync_enter_timer;         /* 0x248 */
+	__u64        async_enter_timer;        /* 0x250 */
+	__u64        exit_timer;               /* 0x258 */
+	__u64        last_update_timer;        /* 0x260 */
+	__u64        user_timer;               /* 0x268 */
+	__u64        system_timer;             /* 0x270 */
+	__u64        last_update_clock;        /* 0x278 */
+	__u64        steal_clock;              /* 0x280 */
+        psw_t        return_mcck_psw;          /* 0x288 */
+	__u8         pad8[0xc00-0x290];        /* 0x290 */
+
+        /* System info area */
+	__u32        save_area[16];            /* 0xc00 */
+	__u32        kernel_stack;             /* 0xc40 */
+	__u32        thread_info;              /* 0xc44 */
+	__u32        async_stack;              /* 0xc48 */
+	__u32        kernel_asce;              /* 0xc4c */
+	__u32        user_asce;                /* 0xc50 */
+	__u32        panic_stack;              /* 0xc54 */
+	__u32	     user_exec_asce;	       /* 0xc58 */
+	__u8	     pad10[0xc60-0xc5c];       /* 0xc5c */
+	/* entry.S sensitive area start */
+	struct       cpuinfo_S390 cpu_data;    /* 0xc60 */
+	__u32        ipl_device;               /* 0xc7c */
+	/* entry.S sensitive area end */
+
+        /* SMP info area: defined by DJB */
+	__u64	     clock_comparator;	       /* 0xc80 */
+	__u32        ext_call_fast;            /* 0xc88 */
+	__u32        percpu_offset;            /* 0xc8c */
+	__u32        current_task;	       /* 0xc90 */
+	__u32        softirq_pending;	       /* 0xc94 */
+	__u64        int_clock;                /* 0xc98 */
+        __u8         pad11[0xe00-0xca0];       /* 0xca0 */
+
+        /* 0xe00 is used as indicator for dump tools */
+        /* whether the kernel died with panic() or not */
+        __u32        panic_magic;              /* 0xe00 */
+
+        /* Align to the top 1k of prefix area */
+	__u8         pad12[0x1000-0xe04];      /* 0xe04 */
+#else /* !__s390x__ */
+        /* prefix area: defined by architecture */
+	__u32        ccw1[2];                  /* 0x000 */
+	__u32        ccw2[4];                  /* 0x008 */
+	__u8         pad1[0x80-0x18];          /* 0x018 */
+	__u32        ext_params;               /* 0x080 */
+	__u16        cpu_addr;                 /* 0x084 */
+	__u16        ext_int_code;             /* 0x086 */
+        __u16        svc_ilc;                  /* 0x088 */
+        __u16        svc_code;                 /* 0x08a */
+        __u16        pgm_ilc;                  /* 0x08c */
+        __u16        pgm_code;                 /* 0x08e */
+	__u32        data_exc_code;            /* 0x090 */
+	__u16        mon_class_num;            /* 0x094 */
+	__u16        per_perc_atmid;           /* 0x096 */
+	addr_t       per_address;              /* 0x098 */
+	__u8         exc_access_id;            /* 0x0a0 */
+	__u8         per_access_id;            /* 0x0a1 */
+	__u8         op_access_id;             /* 0x0a2 */
+	__u8         ar_access_id;             /* 0x0a3 */
+	__u8         pad2[0xA8-0xA4];          /* 0x0a4 */
+	addr_t       trans_exc_code;           /* 0x0A0 */
+	addr_t       monitor_code;             /* 0x09c */
+	__u16        subchannel_id;            /* 0x0b8 */
+	__u16        subchannel_nr;            /* 0x0ba */
+	__u32        io_int_parm;              /* 0x0bc */
+	__u32        io_int_word;              /* 0x0c0 */
+	__u8         pad3[0xc8-0xc4];          /* 0x0c4 */
+	__u32        stfl_fac_list;            /* 0x0c8 */
+	__u8         pad4[0xe8-0xcc];          /* 0x0cc */
+	__u32        mcck_interruption_code[2]; /* 0x0e8 */
+	__u8         pad5[0xf4-0xf0];          /* 0x0f0 */
+	__u32        external_damage_code;     /* 0x0f4 */
+	addr_t       failing_storage_address;  /* 0x0f8 */
+	__u8         pad6[0x120-0x100];        /* 0x100 */
+	psw_t        restart_old_psw;          /* 0x120 */
+	psw_t        external_old_psw;         /* 0x130 */
+	psw_t        svc_old_psw;              /* 0x140 */
+	psw_t        program_old_psw;          /* 0x150 */
+	psw_t        mcck_old_psw;             /* 0x160 */
+	psw_t        io_old_psw;               /* 0x170 */
+	__u8         pad7[0x1a0-0x180];        /* 0x180 */
+	psw_t        restart_psw;              /* 0x1a0 */
+	psw_t        external_new_psw;         /* 0x1b0 */
+	psw_t        svc_new_psw;              /* 0x1c0 */
+	psw_t        program_new_psw;          /* 0x1d0 */
+	psw_t        mcck_new_psw;             /* 0x1e0 */
+	psw_t        io_new_psw;               /* 0x1f0 */
+        psw_t        return_psw;               /* 0x200 */
+	__u8	     irb[64];		       /* 0x210 */
+	__u64        sync_enter_timer;         /* 0x250 */
+	__u64        async_enter_timer;        /* 0x258 */
+	__u64        exit_timer;               /* 0x260 */
+	__u64        last_update_timer;        /* 0x268 */
+	__u64        user_timer;               /* 0x270 */
+	__u64        system_timer;             /* 0x278 */
+	__u64        last_update_clock;        /* 0x280 */
+	__u64        steal_clock;              /* 0x288 */
+        psw_t        return_mcck_psw;          /* 0x290 */
+        __u8         pad8[0xc00-0x2a0];        /* 0x2a0 */
+        /* System info area */
+	__u64        save_area[16];            /* 0xc00 */
+        __u8         pad9[0xd40-0xc80];        /* 0xc80 */
+ 	__u64        kernel_stack;             /* 0xd40 */
+	__u64        thread_info;              /* 0xd48 */
+	__u64        async_stack;              /* 0xd50 */
+	__u64        kernel_asce;              /* 0xd58 */
+	__u64        user_asce;                /* 0xd60 */
+	__u64        panic_stack;              /* 0xd68 */
+	__u64	     user_exec_asce;	       /* 0xd70 */
+	__u8	     pad10[0xd80-0xd78];       /* 0xd78 */
+	/* entry.S sensitive area start */
+	struct       cpuinfo_S390 cpu_data;    /* 0xd80 */
+	__u32        ipl_device;               /* 0xdb8 */
+	__u32        pad11;                    /* 0xdbc */
+	/* entry.S sensitive area end */
+
+        /* SMP info area: defined by DJB */
+	__u64	     clock_comparator;	       /* 0xdc0 */
+	__u64        ext_call_fast;            /* 0xdc8 */
+	__u64        percpu_offset;            /* 0xdd0 */
+	__u64        current_task;	       /* 0xdd8 */
+	__u32	     softirq_pending;	       /* 0xde0 */
+	__u32	     pad_0x0de4;	       /* 0xde4 */
+	__u64        int_clock;                /* 0xde8 */
+        __u8         pad12[0xe00-0xdf0];       /* 0xdf0 */
+
+        /* 0xe00 is used as indicator for dump tools */
+        /* whether the kernel died with panic() or not */
+        __u32        panic_magic;              /* 0xe00 */
+
+	__u8         pad13[0x11b8-0xe04];      /* 0xe04 */
+
+	/* 64 bit extparam used for pfault, diag 250 etc  */
+	__u64        ext_params2;               /* 0x11B8 */
+
+	__u8         pad14[0x1200-0x11C0];      /* 0x11C0 */
+
+        /* System info area */ 
+
+	__u64        floating_pt_save_area[16]; /* 0x1200 */
+	__u64        gpregs_save_area[16];      /* 0x1280 */
+	__u32        st_status_fixed_logout[4]; /* 0x1300 */
+	__u8         pad15[0x1318-0x1310];      /* 0x1310 */
+	__u32        prefixreg_save_area;       /* 0x1318 */
+	__u32        fpt_creg_save_area;        /* 0x131c */
+	__u8         pad16[0x1324-0x1320];      /* 0x1320 */
+	__u32        tod_progreg_save_area;     /* 0x1324 */
+	__u32        cpu_timer_save_area[2];    /* 0x1328 */
+	__u32        clock_comp_save_area[2];   /* 0x1330 */
+	__u8         pad17[0x1340-0x1338];      /* 0x1338 */
+	__u32        access_regs_save_area[16]; /* 0x1340 */ 
+	__u64        cregs_save_area[16];       /* 0x1380 */
+
+	/* align to the top of the prefix area */
+
+	__u8         pad18[0x2000-0x1400];      /* 0x1400 */
+#endif /* !__s390x__ */
+} __attribute__((packed)); /* End structure*/
+
+#define S390_lowcore (*((struct _lowcore *) 0))
+extern struct _lowcore *lowcore_ptr[];
+
+static inline void set_prefix(__u32 address)
+{
+	asm volatile("spx %0" : : "m" (address) : "memory");
+}
+
+static inline __u32 store_prefix(void)
+{
+	__u32 address;
+
+	asm volatile("stpx %0" : "=m" (address));
+	return address;
+}
+
+#define __PANIC_MAGIC           0xDEADC0DE
+
+#endif
+
+#endif
diff --git a/arch/s390/include/asm/mathemu.h b/arch/s390/include/asm/mathemu.h
new file mode 100644
index 00000000000..e8dd1ba8edb
--- /dev/null
+++ b/arch/s390/include/asm/mathemu.h
@@ -0,0 +1,29 @@
+/*
+ *  arch/s390/kernel/mathemu.h
+ *    IEEE floating point emulation.
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ */
+
+#ifndef __MATHEMU__
+#define __MATHEMU__
+
+extern int math_emu_b3(__u8 *, struct pt_regs *);
+extern int math_emu_ed(__u8 *, struct pt_regs *);
+extern int math_emu_ldr(__u8 *);
+extern int math_emu_ler(__u8 *);
+extern int math_emu_std(__u8 *, struct pt_regs *);
+extern int math_emu_ld(__u8 *, struct pt_regs *);
+extern int math_emu_ste(__u8 *, struct pt_regs *);
+extern int math_emu_le(__u8 *, struct pt_regs *);
+extern int math_emu_lfpc(__u8 *, struct pt_regs *);
+extern int math_emu_stfpc(__u8 *, struct pt_regs *);
+extern int math_emu_srnm(__u8 *, struct pt_regs *);
+
+#endif                                 /* __MATHEMU__                      */
+
+
+
+
diff --git a/arch/s390/include/asm/mman.h b/arch/s390/include/asm/mman.h
new file mode 100644
index 00000000000..7839767d837
--- /dev/null
+++ b/arch/s390/include/asm/mman.h
@@ -0,0 +1,25 @@
+/*
+ *  include/asm-s390/mman.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/mman.h"
+ */
+
+#ifndef __S390_MMAN_H__
+#define __S390_MMAN_H__
+
+#include <asm-generic/mman.h>
+
+#define MAP_GROWSDOWN	0x0100		/* stack-like segment */
+#define MAP_DENYWRITE	0x0800		/* ETXTBSY */
+#define MAP_EXECUTABLE	0x1000		/* mark it as an executable */
+#define MAP_LOCKED	0x2000		/* pages are locked */
+#define MAP_NORESERVE	0x4000		/* don't check for reservations */
+#define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
+#define MAP_NONBLOCK	0x10000		/* do not block on IO */
+
+#define MCL_CURRENT	1		/* lock all current mappings */
+#define MCL_FUTURE	2		/* lock all future mappings */
+
+#endif /* __S390_MMAN_H__ */
diff --git a/arch/s390/include/asm/mmu.h b/arch/s390/include/asm/mmu.h
new file mode 100644
index 00000000000..5dd5e7b3476
--- /dev/null
+++ b/arch/s390/include/asm/mmu.h
@@ -0,0 +1,13 @@
+#ifndef __MMU_H
+#define __MMU_H
+
+typedef struct {
+	struct list_head crst_list;
+	struct list_head pgtable_list;
+	unsigned long asce_bits;
+	unsigned long asce_limit;
+	int noexec;
+	int pgstes;
+} mm_context_t;
+
+#endif
diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h
new file mode 100644
index 00000000000..4c2fbf48c9c
--- /dev/null
+++ b/arch/s390/include/asm/mmu_context.h
@@ -0,0 +1,77 @@
+/*
+ *  include/asm-s390/mmu_context.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/mmu_context.h"
+ */
+
+#ifndef __S390_MMU_CONTEXT_H
+#define __S390_MMU_CONTEXT_H
+
+#include <asm/pgalloc.h>
+#include <asm/uaccess.h>
+#include <asm-generic/mm_hooks.h>
+
+static inline int init_new_context(struct task_struct *tsk,
+				   struct mm_struct *mm)
+{
+	mm->context.asce_bits = _ASCE_TABLE_LENGTH | _ASCE_USER_BITS;
+#ifdef CONFIG_64BIT
+	mm->context.asce_bits |= _ASCE_TYPE_REGION3;
+#endif
+	if (current->mm->context.pgstes) {
+		mm->context.noexec = 0;
+		mm->context.pgstes = 1;
+	} else {
+		mm->context.noexec = s390_noexec;
+		mm->context.pgstes = 0;
+	}
+	mm->context.asce_limit = STACK_TOP_MAX;
+	crst_table_init((unsigned long *) mm->pgd, pgd_entry_type(mm));
+	return 0;
+}
+
+#define destroy_context(mm)             do { } while (0)
+
+#ifndef __s390x__
+#define LCTL_OPCODE "lctl"
+#else
+#define LCTL_OPCODE "lctlg"
+#endif
+
+static inline void update_mm(struct mm_struct *mm, struct task_struct *tsk)
+{
+	pgd_t *pgd = mm->pgd;
+
+	S390_lowcore.user_asce = mm->context.asce_bits | __pa(pgd);
+	if (switch_amode) {
+		/* Load primary space page table origin. */
+		pgd = mm->context.noexec ? get_shadow_table(pgd) : pgd;
+		S390_lowcore.user_exec_asce = mm->context.asce_bits | __pa(pgd);
+		asm volatile(LCTL_OPCODE" 1,1,%0\n"
+			     : : "m" (S390_lowcore.user_exec_asce) );
+	} else
+		/* Load home space page table origin. */
+		asm volatile(LCTL_OPCODE" 13,13,%0"
+			     : : "m" (S390_lowcore.user_asce) );
+	set_fs(current->thread.mm_segment);
+}
+
+static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+			     struct task_struct *tsk)
+{
+	cpu_set(smp_processor_id(), next->cpu_vm_mask);
+	update_mm(next, tsk);
+}
+
+#define enter_lazy_tlb(mm,tsk)	do { } while (0)
+#define deactivate_mm(tsk,mm)	do { } while (0)
+
+static inline void activate_mm(struct mm_struct *prev,
+                               struct mm_struct *next)
+{
+        switch_mm(prev, next, current);
+}
+
+#endif /* __S390_MMU_CONTEXT_H */
diff --git a/arch/s390/include/asm/module.h b/arch/s390/include/asm/module.h
new file mode 100644
index 00000000000..1cc1c5af705
--- /dev/null
+++ b/arch/s390/include/asm/module.h
@@ -0,0 +1,46 @@
+#ifndef _ASM_S390_MODULE_H
+#define _ASM_S390_MODULE_H
+/*
+ * This file contains the s390 architecture specific module code.
+ */
+
+struct mod_arch_syminfo
+{
+	unsigned long got_offset;
+	unsigned long plt_offset;
+	int got_initialized;
+	int plt_initialized;
+};
+
+struct mod_arch_specific
+{
+	/* Starting offset of got in the module core memory. */
+	unsigned long got_offset;
+	/* Starting offset of plt in the module core memory. */
+	unsigned long plt_offset;
+	/* Size of the got. */
+	unsigned long got_size;
+	/* Size of the plt. */
+	unsigned long plt_size;
+	/* Number of symbols in syminfo. */
+	int nsyms;
+	/* Additional symbol information (got and plt offsets). */
+	struct mod_arch_syminfo *syminfo;
+};
+
+#ifdef __s390x__
+#define ElfW(x) Elf64_ ## x
+#define ELFW(x) ELF64_ ## x
+#else
+#define ElfW(x) Elf32_ ## x
+#define ELFW(x) ELF32_ ## x
+#endif
+
+#define Elf_Addr ElfW(Addr)
+#define Elf_Rela ElfW(Rela)
+#define Elf_Shdr ElfW(Shdr)
+#define Elf_Sym ElfW(Sym)
+#define Elf_Ehdr ElfW(Ehdr)
+#define ELF_R_SYM ELFW(R_SYM)
+#define ELF_R_TYPE ELFW(R_TYPE)
+#endif /* _ASM_S390_MODULE_H */
diff --git a/arch/s390/include/asm/monwriter.h b/arch/s390/include/asm/monwriter.h
new file mode 100644
index 00000000000..f0cbf96c52e
--- /dev/null
+++ b/arch/s390/include/asm/monwriter.h
@@ -0,0 +1,33 @@
+/*
+ * include/asm-s390/monwriter.h
+ *
+ * Copyright (C) IBM Corp. 2006
+ * Character device driver for writing z/VM APPLDATA monitor records
+ * Version 1.0
+ * Author(s): Melissa Howland <melissah@us.ibm.com>
+ *
+ */
+
+#ifndef _ASM_390_MONWRITER_H
+#define _ASM_390_MONWRITER_H
+
+/* mon_function values */
+#define MONWRITE_START_INTERVAL	0x00 /* start interval recording */
+#define MONWRITE_STOP_INTERVAL	0x01 /* stop interval or config recording */
+#define MONWRITE_GEN_EVENT	0x02 /* generate event record */
+#define MONWRITE_START_CONFIG	0x03 /* start configuration recording */
+
+/* the header the app uses in its write() data */
+struct monwrite_hdr {
+	unsigned char mon_function;
+	unsigned short applid;
+	unsigned char record_num;
+	unsigned short version;
+	unsigned short release;
+	unsigned short mod_level;
+	unsigned short datalen;
+	unsigned char hdrlen;
+
+} __attribute__((packed));
+
+#endif /* _ASM_390_MONWRITER_H */
diff --git a/arch/s390/include/asm/msgbuf.h b/arch/s390/include/asm/msgbuf.h
new file mode 100644
index 00000000000..1bbdee92792
--- /dev/null
+++ b/arch/s390/include/asm/msgbuf.h
@@ -0,0 +1,37 @@
+#ifndef _S390_MSGBUF_H
+#define _S390_MSGBUF_H
+
+/* 
+ * The msqid64_ds structure for S/390 architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 64-bit time_t to solve y2038 problem
+ * - 2 miscellaneous 32-bit values
+ */
+
+struct msqid64_ds {
+	struct ipc64_perm msg_perm;
+	__kernel_time_t msg_stime;	/* last msgsnd time */
+#ifndef __s390x__
+	unsigned long	__unused1;
+#endif /* ! __s390x__ */
+	__kernel_time_t msg_rtime;	/* last msgrcv time */
+#ifndef __s390x__
+	unsigned long	__unused2;
+#endif /* ! __s390x__ */
+	__kernel_time_t msg_ctime;	/* last change time */
+#ifndef __s390x__
+	unsigned long	__unused3;
+#endif /* ! __s390x__ */
+	unsigned long  msg_cbytes;	/* current number of bytes on queue */
+	unsigned long  msg_qnum;	/* number of messages in queue */
+	unsigned long  msg_qbytes;	/* max number of bytes on queue */
+	__kernel_pid_t msg_lspid;	/* pid of last msgsnd */
+	__kernel_pid_t msg_lrpid;	/* last receive pid */
+	unsigned long  __unused4;
+	unsigned long  __unused5;
+};
+
+#endif /* _S390_MSGBUF_H */
diff --git a/arch/s390/include/asm/mutex.h b/arch/s390/include/asm/mutex.h
new file mode 100644
index 00000000000..458c1f7fbc1
--- /dev/null
+++ b/arch/s390/include/asm/mutex.h
@@ -0,0 +1,9 @@
+/*
+ * Pull in the generic implementation for the mutex fastpath.
+ *
+ * TODO: implement optimized primitives instead, or leave the generic
+ * implementation in place, or pick the atomic_xchg() based generic
+ * implementation. (see asm-generic/mutex-xchg.h for details)
+ */
+
+#include <asm-generic/mutex-dec.h>
diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h
new file mode 100644
index 00000000000..991ba939408
--- /dev/null
+++ b/arch/s390/include/asm/page.h
@@ -0,0 +1,155 @@
+/*
+ *  include/asm-s390/page.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Hartmut Penner (hp@de.ibm.com)
+ */
+
+#ifndef _S390_PAGE_H
+#define _S390_PAGE_H
+
+#include <linux/const.h>
+#include <asm/types.h>
+
+/* PAGE_SHIFT determines the page size */
+#define PAGE_SHIFT      12
+#define PAGE_SIZE	(_AC(1,UL) << PAGE_SHIFT)
+#define PAGE_MASK       (~(PAGE_SIZE-1))
+#define PAGE_DEFAULT_ACC	0
+#define PAGE_DEFAULT_KEY	(PAGE_DEFAULT_ACC << 4)
+
+#define HPAGE_SHIFT	20
+#define HPAGE_SIZE	(1UL << HPAGE_SHIFT)
+#define HPAGE_MASK	(~(HPAGE_SIZE - 1))
+#define HUGETLB_PAGE_ORDER	(HPAGE_SHIFT - PAGE_SHIFT)
+
+#define ARCH_HAS_SETCLEAR_HUGE_PTE
+#define ARCH_HAS_HUGE_PTE_TYPE
+#define ARCH_HAS_PREPARE_HUGEPAGE
+#define ARCH_HAS_HUGEPAGE_CLEAR_FLUSH
+
+#include <asm/setup.h>
+#ifndef __ASSEMBLY__
+
+static inline void clear_page(void *page)
+{
+	if (MACHINE_HAS_PFMF) {
+		asm volatile(
+			"	.insn	rre,0xb9af0000,%0,%1"
+			: : "d" (0x10000), "a" (page) : "memory", "cc");
+	} else {
+		register unsigned long reg1 asm ("1") = 0;
+		register void *reg2 asm ("2") = page;
+		register unsigned long reg3 asm ("3") = 4096;
+		asm volatile(
+			"	mvcl	2,0"
+			: "+d" (reg2), "+d" (reg3) : "d" (reg1)
+			: "memory", "cc");
+	}
+}
+
+static inline void copy_page(void *to, void *from)
+{
+	if (MACHINE_HAS_MVPG) {
+		register unsigned long reg0 asm ("0") = 0;
+		asm volatile(
+			"	mvpg	%0,%1"
+			: : "a" (to), "a" (from), "d" (reg0)
+			: "memory", "cc");
+	} else
+		asm volatile(
+			"	mvc	0(256,%0),0(%1)\n"
+			"	mvc	256(256,%0),256(%1)\n"
+			"	mvc	512(256,%0),512(%1)\n"
+			"	mvc	768(256,%0),768(%1)\n"
+			"	mvc	1024(256,%0),1024(%1)\n"
+			"	mvc	1280(256,%0),1280(%1)\n"
+			"	mvc	1536(256,%0),1536(%1)\n"
+			"	mvc	1792(256,%0),1792(%1)\n"
+			"	mvc	2048(256,%0),2048(%1)\n"
+			"	mvc	2304(256,%0),2304(%1)\n"
+			"	mvc	2560(256,%0),2560(%1)\n"
+			"	mvc	2816(256,%0),2816(%1)\n"
+			"	mvc	3072(256,%0),3072(%1)\n"
+			"	mvc	3328(256,%0),3328(%1)\n"
+			"	mvc	3584(256,%0),3584(%1)\n"
+			"	mvc	3840(256,%0),3840(%1)\n"
+			: : "a" (to), "a" (from) : "memory");
+}
+
+#define clear_user_page(page, vaddr, pg)	clear_page(page)
+#define copy_user_page(to, from, vaddr, pg)	copy_page(to, from)
+
+#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
+	alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
+#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
+
+/*
+ * These are used to make use of C type-checking..
+ */
+
+typedef struct { unsigned long pgprot; } pgprot_t;
+typedef struct { unsigned long pte; } pte_t;
+typedef struct { unsigned long pmd; } pmd_t;
+typedef struct { unsigned long pud; } pud_t;
+typedef struct { unsigned long pgd; } pgd_t;
+typedef pte_t *pgtable_t;
+
+#define pgprot_val(x)	((x).pgprot)
+#define pte_val(x)	((x).pte)
+#define pmd_val(x)	((x).pmd)
+#define pud_val(x)	((x).pud)
+#define pgd_val(x)      ((x).pgd)
+
+#define __pte(x)        ((pte_t) { (x) } )
+#define __pmd(x)        ((pmd_t) { (x) } )
+#define __pgd(x)        ((pgd_t) { (x) } )
+#define __pgprot(x)     ((pgprot_t) { (x) } )
+
+/* default storage key used for all pages */
+extern unsigned int default_storage_key;
+
+static inline void
+page_set_storage_key(unsigned long addr, unsigned int skey)
+{
+	asm volatile("sske %0,%1" : : "d" (skey), "a" (addr));
+}
+
+static inline unsigned int
+page_get_storage_key(unsigned long addr)
+{
+	unsigned int skey;
+
+	asm volatile("iske %0,%1" : "=d" (skey) : "a" (addr), "0" (0));
+	return skey;
+}
+
+#ifdef CONFIG_PAGE_STATES
+
+struct page;
+void arch_free_page(struct page *page, int order);
+void arch_alloc_page(struct page *page, int order);
+
+#define HAVE_ARCH_FREE_PAGE
+#define HAVE_ARCH_ALLOC_PAGE
+
+#endif
+
+#endif /* !__ASSEMBLY__ */
+
+#define __PAGE_OFFSET           0x0UL
+#define PAGE_OFFSET             0x0UL
+#define __pa(x)                 (unsigned long)(x)
+#define __va(x)                 (void *)(unsigned long)(x)
+#define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
+#define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
+#define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
+
+#define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | \
+				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+
+#include <asm-generic/memory_model.h>
+#include <asm-generic/page.h>
+
+#endif /* _S390_PAGE_H */
diff --git a/arch/s390/include/asm/param.h b/arch/s390/include/asm/param.h
new file mode 100644
index 00000000000..34aaa460334
--- /dev/null
+++ b/arch/s390/include/asm/param.h
@@ -0,0 +1,30 @@
+/*
+ *  include/asm-s390/param.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/param.h"
+ */
+
+#ifndef _ASMS390_PARAM_H
+#define _ASMS390_PARAM_H
+
+#ifdef __KERNEL__
+# define HZ		CONFIG_HZ	/* Internal kernel timer frequency */
+# define USER_HZ	100		/* .. some user interfaces are in "ticks" */
+# define CLOCKS_PER_SEC	(USER_HZ)	/* like times() */
+#endif
+
+#ifndef HZ
+#define HZ 100
+#endif
+
+#define EXEC_PAGESIZE	4096
+
+#ifndef NOGROUP
+#define NOGROUP		(-1)
+#endif
+
+#define MAXHOSTNAMELEN	64	/* max length of hostname */
+
+#endif
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h
new file mode 100644
index 00000000000..42a145c9ddd
--- /dev/null
+++ b/arch/s390/include/asm/pci.h
@@ -0,0 +1,10 @@
+#ifndef __ASM_S390_PCI_H
+#define __ASM_S390_PCI_H
+
+/* S/390 systems don't have a PCI bus. This file is just here because some stupid .c code
+ * includes it even if CONFIG_PCI is not set.
+ */
+#define PCI_DMA_BUS_IS_PHYS (0)
+
+#endif /* __ASM_S390_PCI_H */
+
diff --git a/arch/s390/include/asm/percpu.h b/arch/s390/include/asm/percpu.h
new file mode 100644
index 00000000000..408d60b4f75
--- /dev/null
+++ b/arch/s390/include/asm/percpu.h
@@ -0,0 +1,37 @@
+#ifndef __ARCH_S390_PERCPU__
+#define __ARCH_S390_PERCPU__
+
+#include <linux/compiler.h>
+#include <asm/lowcore.h>
+
+/*
+ * s390 uses its own implementation for per cpu data, the offset of
+ * the cpu local data area is cached in the cpu's lowcore memory.
+ * For 64 bit module code s390 forces the use of a GOT slot for the
+ * address of the per cpu variable. This is needed because the module
+ * may be more than 4G above the per cpu area.
+ */
+#if defined(__s390x__) && defined(MODULE)
+
+#define SHIFT_PERCPU_PTR(ptr,offset) (({			\
+	extern int simple_identifier_##var(void);	\
+	unsigned long *__ptr;				\
+	asm ( "larl %0, %1@GOTENT"		\
+	    : "=a" (__ptr) : "X" (ptr) );		\
+	(typeof(ptr))((*__ptr) + (offset));	}))
+
+#else
+
+#define SHIFT_PERCPU_PTR(ptr, offset) (({				\
+	extern int simple_identifier_##var(void);		\
+	unsigned long __ptr;					\
+	asm ( "" : "=a" (__ptr) : "0" (ptr) );			\
+	(typeof(ptr)) (__ptr + (offset)); }))
+
+#endif
+
+#define __my_cpu_offset S390_lowcore.percpu_offset
+
+#include <asm-generic/percpu.h>
+
+#endif /* __ARCH_S390_PERCPU__ */
diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h
new file mode 100644
index 00000000000..f5b2bf3d7c1
--- /dev/null
+++ b/arch/s390/include/asm/pgalloc.h
@@ -0,0 +1,174 @@
+/*
+ *  include/asm-s390/pgalloc.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Hartmut Penner (hp@de.ibm.com)
+ *               Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/pgalloc.h"
+ *    Copyright (C) 1994  Linus Torvalds
+ */
+
+#ifndef _S390_PGALLOC_H
+#define _S390_PGALLOC_H
+
+#include <linux/threads.h>
+#include <linux/gfp.h>
+#include <linux/mm.h>
+
+#define check_pgt_cache()	do {} while (0)
+
+unsigned long *crst_table_alloc(struct mm_struct *, int);
+void crst_table_free(struct mm_struct *, unsigned long *);
+
+unsigned long *page_table_alloc(struct mm_struct *);
+void page_table_free(struct mm_struct *, unsigned long *);
+void disable_noexec(struct mm_struct *, struct task_struct *);
+
+static inline void clear_table(unsigned long *s, unsigned long val, size_t n)
+{
+	*s = val;
+	n = (n / 256) - 1;
+	asm volatile(
+#ifdef CONFIG_64BIT
+		"	mvc	8(248,%0),0(%0)\n"
+#else
+		"	mvc	4(252,%0),0(%0)\n"
+#endif
+		"0:	mvc	256(256,%0),0(%0)\n"
+		"	la	%0,256(%0)\n"
+		"	brct	%1,0b\n"
+		: "+a" (s), "+d" (n));
+}
+
+static inline void crst_table_init(unsigned long *crst, unsigned long entry)
+{
+	clear_table(crst, entry, sizeof(unsigned long)*2048);
+	crst = get_shadow_table(crst);
+	if (crst)
+		clear_table(crst, entry, sizeof(unsigned long)*2048);
+}
+
+#ifndef __s390x__
+
+static inline unsigned long pgd_entry_type(struct mm_struct *mm)
+{
+	return _SEGMENT_ENTRY_EMPTY;
+}
+
+#define pud_alloc_one(mm,address)		({ BUG(); ((pud_t *)2); })
+#define pud_free(mm, x)				do { } while (0)
+
+#define pmd_alloc_one(mm,address)		({ BUG(); ((pmd_t *)2); })
+#define pmd_free(mm, x)				do { } while (0)
+
+#define pgd_populate(mm, pgd, pud)		BUG()
+#define pgd_populate_kernel(mm, pgd, pud)	BUG()
+
+#define pud_populate(mm, pud, pmd)		BUG()
+#define pud_populate_kernel(mm, pud, pmd)	BUG()
+
+#else /* __s390x__ */
+
+static inline unsigned long pgd_entry_type(struct mm_struct *mm)
+{
+	if (mm->context.asce_limit <= (1UL << 31))
+		return _SEGMENT_ENTRY_EMPTY;
+	if (mm->context.asce_limit <= (1UL << 42))
+		return _REGION3_ENTRY_EMPTY;
+	return _REGION2_ENTRY_EMPTY;
+}
+
+int crst_table_upgrade(struct mm_struct *, unsigned long limit);
+void crst_table_downgrade(struct mm_struct *, unsigned long limit);
+
+static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+	unsigned long *table = crst_table_alloc(mm, mm->context.noexec);
+	if (table)
+		crst_table_init(table, _REGION3_ENTRY_EMPTY);
+	return (pud_t *) table;
+}
+#define pud_free(mm, pud) crst_table_free(mm, (unsigned long *) pud)
+
+static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long vmaddr)
+{
+	unsigned long *table = crst_table_alloc(mm, mm->context.noexec);
+	if (table)
+		crst_table_init(table, _SEGMENT_ENTRY_EMPTY);
+	return (pmd_t *) table;
+}
+#define pmd_free(mm, pmd) crst_table_free(mm, (unsigned long *) pmd)
+
+static inline void pgd_populate_kernel(struct mm_struct *mm,
+				       pgd_t *pgd, pud_t *pud)
+{
+	pgd_val(*pgd) = _REGION2_ENTRY | __pa(pud);
+}
+
+static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
+{
+	pgd_populate_kernel(mm, pgd, pud);
+	if (mm->context.noexec) {
+		pgd = get_shadow_table(pgd);
+		pud = get_shadow_table(pud);
+		pgd_populate_kernel(mm, pgd, pud);
+	}
+}
+
+static inline void pud_populate_kernel(struct mm_struct *mm,
+				       pud_t *pud, pmd_t *pmd)
+{
+	pud_val(*pud) = _REGION3_ENTRY | __pa(pmd);
+}
+
+static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+{
+	pud_populate_kernel(mm, pud, pmd);
+	if (mm->context.noexec) {
+		pud = get_shadow_table(pud);
+		pmd = get_shadow_table(pmd);
+		pud_populate_kernel(mm, pud, pmd);
+	}
+}
+
+#endif /* __s390x__ */
+
+static inline pgd_t *pgd_alloc(struct mm_struct *mm)
+{
+	INIT_LIST_HEAD(&mm->context.crst_list);
+	INIT_LIST_HEAD(&mm->context.pgtable_list);
+	return (pgd_t *) crst_table_alloc(mm, s390_noexec);
+}
+#define pgd_free(mm, pgd) crst_table_free(mm, (unsigned long *) pgd)
+
+static inline void pmd_populate_kernel(struct mm_struct *mm,
+				       pmd_t *pmd, pte_t *pte)
+{
+	pmd_val(*pmd) = _SEGMENT_ENTRY + __pa(pte);
+}
+
+static inline void pmd_populate(struct mm_struct *mm,
+				pmd_t *pmd, pgtable_t pte)
+{
+	pmd_populate_kernel(mm, pmd, pte);
+	if (mm->context.noexec) {
+		pmd = get_shadow_table(pmd);
+		pmd_populate_kernel(mm, pmd, pte + PTRS_PER_PTE);
+	}
+}
+
+#define pmd_pgtable(pmd) \
+	(pgtable_t)(pmd_val(pmd) & -sizeof(pte_t)*PTRS_PER_PTE)
+
+/*
+ * page table entry allocation/free routines.
+ */
+#define pte_alloc_one_kernel(mm, vmaddr) ((pte_t *) page_table_alloc(mm))
+#define pte_alloc_one(mm, vmaddr) ((pte_t *) page_table_alloc(mm))
+
+#define pte_free_kernel(mm, pte) page_table_free(mm, (unsigned long *) pte)
+#define pte_free(mm, pte) page_table_free(mm, (unsigned long *) pte)
+
+#endif /* _S390_PGALLOC_H */
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
new file mode 100644
index 00000000000..1a928f84afd
--- /dev/null
+++ b/arch/s390/include/asm/pgtable.h
@@ -0,0 +1,1134 @@
+/*
+ *  include/asm-s390/pgtable.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Hartmut Penner (hp@de.ibm.com)
+ *               Ulrich Weigand (weigand@de.ibm.com)
+ *               Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/pgtable.h"
+ */
+
+#ifndef _ASM_S390_PGTABLE_H
+#define _ASM_S390_PGTABLE_H
+
+/*
+ * The Linux memory management assumes a three-level page table setup. For
+ * s390 31 bit we "fold" the mid level into the top-level page table, so
+ * that we physically have the same two-level page table as the s390 mmu
+ * expects in 31 bit mode. For s390 64 bit we use three of the five levels
+ * the hardware provides (region first and region second tables are not
+ * used).
+ *
+ * The "pgd_xxx()" functions are trivial for a folded two-level
+ * setup: the pgd is never bad, and a pmd always exists (as it's folded
+ * into the pgd entry)
+ *
+ * This file contains the functions and defines necessary to modify and use
+ * the S390 page table tree.
+ */
+#ifndef __ASSEMBLY__
+#include <linux/sched.h>
+#include <linux/mm_types.h>
+#include <asm/bitops.h>
+#include <asm/bug.h>
+#include <asm/processor.h>
+
+extern pgd_t swapper_pg_dir[] __attribute__ ((aligned (4096)));
+extern void paging_init(void);
+extern void vmem_map_init(void);
+
+/*
+ * The S390 doesn't have any external MMU info: the kernel page
+ * tables contain all the necessary information.
+ */
+#define update_mmu_cache(vma, address, pte)     do { } while (0)
+
+/*
+ * ZERO_PAGE is a global shared page that is always zero: used
+ * for zero-mapped memory areas etc..
+ */
+extern char empty_zero_page[PAGE_SIZE];
+#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
+#endif /* !__ASSEMBLY__ */
+
+/*
+ * PMD_SHIFT determines the size of the area a second-level page
+ * table can map
+ * PGDIR_SHIFT determines what a third-level page table entry can map
+ */
+#ifndef __s390x__
+# define PMD_SHIFT	20
+# define PUD_SHIFT	20
+# define PGDIR_SHIFT	20
+#else /* __s390x__ */
+# define PMD_SHIFT	20
+# define PUD_SHIFT	31
+# define PGDIR_SHIFT	42
+#endif /* __s390x__ */
+
+#define PMD_SIZE        (1UL << PMD_SHIFT)
+#define PMD_MASK        (~(PMD_SIZE-1))
+#define PUD_SIZE	(1UL << PUD_SHIFT)
+#define PUD_MASK	(~(PUD_SIZE-1))
+#define PGDIR_SIZE	(1UL << PGDIR_SHIFT)
+#define PGDIR_MASK	(~(PGDIR_SIZE-1))
+
+/*
+ * entries per page directory level: the S390 is two-level, so
+ * we don't really have any PMD directory physically.
+ * for S390 segment-table entries are combined to one PGD
+ * that leads to 1024 pte per pgd
+ */
+#define PTRS_PER_PTE	256
+#ifndef __s390x__
+#define PTRS_PER_PMD	1
+#define PTRS_PER_PUD	1
+#else /* __s390x__ */
+#define PTRS_PER_PMD	2048
+#define PTRS_PER_PUD	2048
+#endif /* __s390x__ */
+#define PTRS_PER_PGD	2048
+
+#define FIRST_USER_ADDRESS  0
+
+#define pte_ERROR(e) \
+	printk("%s:%d: bad pte %p.\n", __FILE__, __LINE__, (void *) pte_val(e))
+#define pmd_ERROR(e) \
+	printk("%s:%d: bad pmd %p.\n", __FILE__, __LINE__, (void *) pmd_val(e))
+#define pud_ERROR(e) \
+	printk("%s:%d: bad pud %p.\n", __FILE__, __LINE__, (void *) pud_val(e))
+#define pgd_ERROR(e) \
+	printk("%s:%d: bad pgd %p.\n", __FILE__, __LINE__, (void *) pgd_val(e))
+
+#ifndef __ASSEMBLY__
+/*
+ * The vmalloc area will always be on the topmost area of the kernel
+ * mapping. We reserve 96MB (31bit) / 1GB (64bit) for vmalloc,
+ * which should be enough for any sane case.
+ * By putting vmalloc at the top, we maximise the gap between physical
+ * memory and vmalloc to catch misplaced memory accesses. As a side
+ * effect, this also makes sure that 64 bit module code cannot be used
+ * as system call address.
+ */
+#ifndef __s390x__
+#define VMALLOC_START	0x78000000UL
+#define VMALLOC_END	0x7e000000UL
+#define VMEM_MAP_END	0x80000000UL
+#else /* __s390x__ */
+#define VMALLOC_START	0x3e000000000UL
+#define VMALLOC_END	0x3e040000000UL
+#define VMEM_MAP_END	0x40000000000UL
+#endif /* __s390x__ */
+
+/*
+ * VMEM_MAX_PHYS is the highest physical address that can be added to the 1:1
+ * mapping. This needs to be calculated at compile time since the size of the
+ * VMEM_MAP is static but the size of struct page can change.
+ */
+#define VMEM_MAX_PAGES	((VMEM_MAP_END - VMALLOC_END) / sizeof(struct page))
+#define VMEM_MAX_PFN	min(VMALLOC_START >> PAGE_SHIFT, VMEM_MAX_PAGES)
+#define VMEM_MAX_PHYS	((VMEM_MAX_PFN << PAGE_SHIFT) & ~((16 << 20) - 1))
+#define vmemmap		((struct page *) VMALLOC_END)
+
+/*
+ * A 31 bit pagetable entry of S390 has following format:
+ *  |   PFRA          |    |  OS  |
+ * 0                   0IP0
+ * 00000000001111111111222222222233
+ * 01234567890123456789012345678901
+ *
+ * I Page-Invalid Bit:    Page is not available for address-translation
+ * P Page-Protection Bit: Store access not possible for page
+ *
+ * A 31 bit segmenttable entry of S390 has following format:
+ *  |   P-table origin      |  |PTL
+ * 0                         IC
+ * 00000000001111111111222222222233
+ * 01234567890123456789012345678901
+ *
+ * I Segment-Invalid Bit:    Segment is not available for address-translation
+ * C Common-Segment Bit:     Segment is not private (PoP 3-30)
+ * PTL Page-Table-Length:    Page-table length (PTL+1*16 entries -> up to 256)
+ *
+ * The 31 bit segmenttable origin of S390 has following format:
+ *
+ *  |S-table origin   |     | STL |
+ * X                   **GPS
+ * 00000000001111111111222222222233
+ * 01234567890123456789012345678901
+ *
+ * X Space-Switch event:
+ * G Segment-Invalid Bit:     *
+ * P Private-Space Bit:       Segment is not private (PoP 3-30)
+ * S Storage-Alteration:
+ * STL Segment-Table-Length:  Segment-table length (STL+1*16 entries -> up to 2048)
+ *
+ * A 64 bit pagetable entry of S390 has following format:
+ * |                     PFRA                         |0IP0|  OS  |
+ * 0000000000111111111122222222223333333333444444444455555555556666
+ * 0123456789012345678901234567890123456789012345678901234567890123
+ *
+ * I Page-Invalid Bit:    Page is not available for address-translation
+ * P Page-Protection Bit: Store access not possible for page
+ *
+ * A 64 bit segmenttable entry of S390 has following format:
+ * |        P-table origin                              |      TT
+ * 0000000000111111111122222222223333333333444444444455555555556666
+ * 0123456789012345678901234567890123456789012345678901234567890123
+ *
+ * I Segment-Invalid Bit:    Segment is not available for address-translation
+ * C Common-Segment Bit:     Segment is not private (PoP 3-30)
+ * P Page-Protection Bit: Store access not possible for page
+ * TT Type 00
+ *
+ * A 64 bit region table entry of S390 has following format:
+ * |        S-table origin                             |   TF  TTTL
+ * 0000000000111111111122222222223333333333444444444455555555556666
+ * 0123456789012345678901234567890123456789012345678901234567890123
+ *
+ * I Segment-Invalid Bit:    Segment is not available for address-translation
+ * TT Type 01
+ * TF
+ * TL Table length
+ *
+ * The 64 bit regiontable origin of S390 has following format:
+ * |      region table origon                          |       DTTL
+ * 0000000000111111111122222222223333333333444444444455555555556666
+ * 0123456789012345678901234567890123456789012345678901234567890123
+ *
+ * X Space-Switch event:
+ * G Segment-Invalid Bit:  
+ * P Private-Space Bit:    
+ * S Storage-Alteration:
+ * R Real space
+ * TL Table-Length:
+ *
+ * A storage key has the following format:
+ * | ACC |F|R|C|0|
+ *  0   3 4 5 6 7
+ * ACC: access key
+ * F  : fetch protection bit
+ * R  : referenced bit
+ * C  : changed bit
+ */
+
+/* Hardware bits in the page table entry */
+#define _PAGE_RO	0x200		/* HW read-only bit  */
+#define _PAGE_INVALID	0x400		/* HW invalid bit    */
+
+/* Software bits in the page table entry */
+#define _PAGE_SWT	0x001		/* SW pte type bit t */
+#define _PAGE_SWX	0x002		/* SW pte type bit x */
+#define _PAGE_SPECIAL	0x004		/* SW associated with special page */
+#define __HAVE_ARCH_PTE_SPECIAL
+
+/* Set of bits not changed in pte_modify */
+#define _PAGE_CHG_MASK	(PAGE_MASK | _PAGE_SPECIAL)
+
+/* Six different types of pages. */
+#define _PAGE_TYPE_EMPTY	0x400
+#define _PAGE_TYPE_NONE		0x401
+#define _PAGE_TYPE_SWAP		0x403
+#define _PAGE_TYPE_FILE		0x601	/* bit 0x002 is used for offset !! */
+#define _PAGE_TYPE_RO		0x200
+#define _PAGE_TYPE_RW		0x000
+#define _PAGE_TYPE_EX_RO	0x202
+#define _PAGE_TYPE_EX_RW	0x002
+
+/*
+ * Only four types for huge pages, using the invalid bit and protection bit
+ * of a segment table entry.
+ */
+#define _HPAGE_TYPE_EMPTY	0x020	/* _SEGMENT_ENTRY_INV */
+#define _HPAGE_TYPE_NONE	0x220
+#define _HPAGE_TYPE_RO		0x200	/* _SEGMENT_ENTRY_RO  */
+#define _HPAGE_TYPE_RW		0x000
+
+/*
+ * PTE type bits are rather complicated. handle_pte_fault uses pte_present,
+ * pte_none and pte_file to find out the pte type WITHOUT holding the page
+ * table lock. ptep_clear_flush on the other hand uses ptep_clear_flush to
+ * invalidate a given pte. ipte sets the hw invalid bit and clears all tlbs
+ * for the page. The page table entry is set to _PAGE_TYPE_EMPTY afterwards.
+ * This change is done while holding the lock, but the intermediate step
+ * of a previously valid pte with the hw invalid bit set can be observed by
+ * handle_pte_fault. That makes it necessary that all valid pte types with
+ * the hw invalid bit set must be distinguishable from the four pte types
+ * empty, none, swap and file.
+ *
+ *			irxt  ipte  irxt
+ * _PAGE_TYPE_EMPTY	1000   ->   1000
+ * _PAGE_TYPE_NONE	1001   ->   1001
+ * _PAGE_TYPE_SWAP	1011   ->   1011
+ * _PAGE_TYPE_FILE	11?1   ->   11?1
+ * _PAGE_TYPE_RO	0100   ->   1100
+ * _PAGE_TYPE_RW	0000   ->   1000
+ * _PAGE_TYPE_EX_RO	0110   ->   1110
+ * _PAGE_TYPE_EX_RW	0010   ->   1010
+ *
+ * pte_none is true for bits combinations 1000, 1010, 1100, 1110
+ * pte_present is true for bits combinations 0000, 0010, 0100, 0110, 1001
+ * pte_file is true for bits combinations 1101, 1111
+ * swap pte is 1011 and 0001, 0011, 0101, 0111 are invalid.
+ */
+
+/* Page status table bits for virtualization */
+#define RCP_PCL_BIT	55
+#define RCP_HR_BIT	54
+#define RCP_HC_BIT	53
+#define RCP_GR_BIT	50
+#define RCP_GC_BIT	49
+
+/* User dirty bit for KVM's migration feature */
+#define KVM_UD_BIT	47
+
+#ifndef __s390x__
+
+/* Bits in the segment table address-space-control-element */
+#define _ASCE_SPACE_SWITCH	0x80000000UL	/* space switch event	    */
+#define _ASCE_ORIGIN_MASK	0x7ffff000UL	/* segment table origin	    */
+#define _ASCE_PRIVATE_SPACE	0x100	/* private space control	    */
+#define _ASCE_ALT_EVENT		0x80	/* storage alteration event control */
+#define _ASCE_TABLE_LENGTH	0x7f	/* 128 x 64 entries = 8k	    */
+
+/* Bits in the segment table entry */
+#define _SEGMENT_ENTRY_ORIGIN	0x7fffffc0UL	/* page table origin	    */
+#define _SEGMENT_ENTRY_INV	0x20	/* invalid segment table entry	    */
+#define _SEGMENT_ENTRY_COMMON	0x10	/* common segment bit		    */
+#define _SEGMENT_ENTRY_PTL	0x0f	/* page table length		    */
+
+#define _SEGMENT_ENTRY		(_SEGMENT_ENTRY_PTL)
+#define _SEGMENT_ENTRY_EMPTY	(_SEGMENT_ENTRY_INV)
+
+#else /* __s390x__ */
+
+/* Bits in the segment/region table address-space-control-element */
+#define _ASCE_ORIGIN		~0xfffUL/* segment table origin		    */
+#define _ASCE_PRIVATE_SPACE	0x100	/* private space control	    */
+#define _ASCE_ALT_EVENT		0x80	/* storage alteration event control */
+#define _ASCE_SPACE_SWITCH	0x40	/* space switch event		    */
+#define _ASCE_REAL_SPACE	0x20	/* real space control		    */
+#define _ASCE_TYPE_MASK		0x0c	/* asce table type mask		    */
+#define _ASCE_TYPE_REGION1	0x0c	/* region first table type	    */
+#define _ASCE_TYPE_REGION2	0x08	/* region second table type	    */
+#define _ASCE_TYPE_REGION3	0x04	/* region third table type	    */
+#define _ASCE_TYPE_SEGMENT	0x00	/* segment table type		    */
+#define _ASCE_TABLE_LENGTH	0x03	/* region table length		    */
+
+/* Bits in the region table entry */
+#define _REGION_ENTRY_ORIGIN	~0xfffUL/* region/segment table origin	    */
+#define _REGION_ENTRY_INV	0x20	/* invalid region table entry	    */
+#define _REGION_ENTRY_TYPE_MASK	0x0c	/* region/segment table type mask   */
+#define _REGION_ENTRY_TYPE_R1	0x0c	/* region first table type	    */
+#define _REGION_ENTRY_TYPE_R2	0x08	/* region second table type	    */
+#define _REGION_ENTRY_TYPE_R3	0x04	/* region third table type	    */
+#define _REGION_ENTRY_LENGTH	0x03	/* region third length		    */
+
+#define _REGION1_ENTRY		(_REGION_ENTRY_TYPE_R1 | _REGION_ENTRY_LENGTH)
+#define _REGION1_ENTRY_EMPTY	(_REGION_ENTRY_TYPE_R1 | _REGION_ENTRY_INV)
+#define _REGION2_ENTRY		(_REGION_ENTRY_TYPE_R2 | _REGION_ENTRY_LENGTH)
+#define _REGION2_ENTRY_EMPTY	(_REGION_ENTRY_TYPE_R2 | _REGION_ENTRY_INV)
+#define _REGION3_ENTRY		(_REGION_ENTRY_TYPE_R3 | _REGION_ENTRY_LENGTH)
+#define _REGION3_ENTRY_EMPTY	(_REGION_ENTRY_TYPE_R3 | _REGION_ENTRY_INV)
+
+/* Bits in the segment table entry */
+#define _SEGMENT_ENTRY_ORIGIN	~0x7ffUL/* segment table origin		    */
+#define _SEGMENT_ENTRY_RO	0x200	/* page protection bit		    */
+#define _SEGMENT_ENTRY_INV	0x20	/* invalid segment table entry	    */
+
+#define _SEGMENT_ENTRY		(0)
+#define _SEGMENT_ENTRY_EMPTY	(_SEGMENT_ENTRY_INV)
+
+#define _SEGMENT_ENTRY_LARGE	0x400	/* STE-format control, large page   */
+#define _SEGMENT_ENTRY_CO	0x100	/* change-recording override   */
+
+#endif /* __s390x__ */
+
+/*
+ * A user page table pointer has the space-switch-event bit, the
+ * private-space-control bit and the storage-alteration-event-control
+ * bit set. A kernel page table pointer doesn't need them.
+ */
+#define _ASCE_USER_BITS		(_ASCE_SPACE_SWITCH | _ASCE_PRIVATE_SPACE | \
+				 _ASCE_ALT_EVENT)
+
+/* Bits int the storage key */
+#define _PAGE_CHANGED    0x02          /* HW changed bit                   */
+#define _PAGE_REFERENCED 0x04          /* HW referenced bit                */
+
+/*
+ * Page protection definitions.
+ */
+#define PAGE_NONE	__pgprot(_PAGE_TYPE_NONE)
+#define PAGE_RO		__pgprot(_PAGE_TYPE_RO)
+#define PAGE_RW		__pgprot(_PAGE_TYPE_RW)
+#define PAGE_EX_RO	__pgprot(_PAGE_TYPE_EX_RO)
+#define PAGE_EX_RW	__pgprot(_PAGE_TYPE_EX_RW)
+
+#define PAGE_KERNEL	PAGE_RW
+#define PAGE_COPY	PAGE_RO
+
+/*
+ * Dependent on the EXEC_PROTECT option s390 can do execute protection.
+ * Write permission always implies read permission. In theory with a
+ * primary/secondary page table execute only can be implemented but
+ * it would cost an additional bit in the pte to distinguish all the
+ * different pte types. To avoid that execute permission currently
+ * implies read permission as well.
+ */
+         /*xwr*/
+#define __P000	PAGE_NONE
+#define __P001	PAGE_RO
+#define __P010	PAGE_RO
+#define __P011	PAGE_RO
+#define __P100	PAGE_EX_RO
+#define __P101	PAGE_EX_RO
+#define __P110	PAGE_EX_RO
+#define __P111	PAGE_EX_RO
+
+#define __S000	PAGE_NONE
+#define __S001	PAGE_RO
+#define __S010	PAGE_RW
+#define __S011	PAGE_RW
+#define __S100	PAGE_EX_RO
+#define __S101	PAGE_EX_RO
+#define __S110	PAGE_EX_RW
+#define __S111	PAGE_EX_RW
+
+#ifndef __s390x__
+# define PxD_SHADOW_SHIFT	1
+#else /* __s390x__ */
+# define PxD_SHADOW_SHIFT	2
+#endif /* __s390x__ */
+
+static inline void *get_shadow_table(void *table)
+{
+	unsigned long addr, offset;
+	struct page *page;
+
+	addr = (unsigned long) table;
+	offset = addr & ((PAGE_SIZE << PxD_SHADOW_SHIFT) - 1);
+	page = virt_to_page((void *)(addr ^ offset));
+	return (void *)(addr_t)(page->index ? (page->index | offset) : 0UL);
+}
+
+/*
+ * Certain architectures need to do special things when PTEs
+ * within a page table are directly modified.  Thus, the following
+ * hook is made available.
+ */
+static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
+			      pte_t *ptep, pte_t entry)
+{
+	*ptep = entry;
+	if (mm->context.noexec) {
+		if (!(pte_val(entry) & _PAGE_INVALID) &&
+		    (pte_val(entry) & _PAGE_SWX))
+			pte_val(entry) |= _PAGE_RO;
+		else
+			pte_val(entry) = _PAGE_TYPE_EMPTY;
+		ptep[PTRS_PER_PTE] = entry;
+	}
+}
+
+/*
+ * pgd/pmd/pte query functions
+ */
+#ifndef __s390x__
+
+static inline int pgd_present(pgd_t pgd) { return 1; }
+static inline int pgd_none(pgd_t pgd)    { return 0; }
+static inline int pgd_bad(pgd_t pgd)     { return 0; }
+
+static inline int pud_present(pud_t pud) { return 1; }
+static inline int pud_none(pud_t pud)	 { return 0; }
+static inline int pud_bad(pud_t pud)	 { return 0; }
+
+#else /* __s390x__ */
+
+static inline int pgd_present(pgd_t pgd)
+{
+	if ((pgd_val(pgd) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R2)
+		return 1;
+	return (pgd_val(pgd) & _REGION_ENTRY_ORIGIN) != 0UL;
+}
+
+static inline int pgd_none(pgd_t pgd)
+{
+	if ((pgd_val(pgd) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R2)
+		return 0;
+	return (pgd_val(pgd) & _REGION_ENTRY_INV) != 0UL;
+}
+
+static inline int pgd_bad(pgd_t pgd)
+{
+	/*
+	 * With dynamic page table levels the pgd can be a region table
+	 * entry or a segment table entry. Check for the bit that are
+	 * invalid for either table entry.
+	 */
+	unsigned long mask =
+		~_SEGMENT_ENTRY_ORIGIN & ~_REGION_ENTRY_INV &
+		~_REGION_ENTRY_TYPE_MASK & ~_REGION_ENTRY_LENGTH;
+	return (pgd_val(pgd) & mask) != 0;
+}
+
+static inline int pud_present(pud_t pud)
+{
+	if ((pud_val(pud) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R3)
+		return 1;
+	return (pud_val(pud) & _REGION_ENTRY_ORIGIN) != 0UL;
+}
+
+static inline int pud_none(pud_t pud)
+{
+	if ((pud_val(pud) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R3)
+		return 0;
+	return (pud_val(pud) & _REGION_ENTRY_INV) != 0UL;
+}
+
+static inline int pud_bad(pud_t pud)
+{
+	/*
+	 * With dynamic page table levels the pud can be a region table
+	 * entry or a segment table entry. Check for the bit that are
+	 * invalid for either table entry.
+	 */
+	unsigned long mask =
+		~_SEGMENT_ENTRY_ORIGIN & ~_REGION_ENTRY_INV &
+		~_REGION_ENTRY_TYPE_MASK & ~_REGION_ENTRY_LENGTH;
+	return (pud_val(pud) & mask) != 0;
+}
+
+#endif /* __s390x__ */
+
+static inline int pmd_present(pmd_t pmd)
+{
+	return (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN) != 0UL;
+}
+
+static inline int pmd_none(pmd_t pmd)
+{
+	return (pmd_val(pmd) & _SEGMENT_ENTRY_INV) != 0UL;
+}
+
+static inline int pmd_bad(pmd_t pmd)
+{
+	unsigned long mask = ~_SEGMENT_ENTRY_ORIGIN & ~_SEGMENT_ENTRY_INV;
+	return (pmd_val(pmd) & mask) != _SEGMENT_ENTRY;
+}
+
+static inline int pte_none(pte_t pte)
+{
+	return (pte_val(pte) & _PAGE_INVALID) && !(pte_val(pte) & _PAGE_SWT);
+}
+
+static inline int pte_present(pte_t pte)
+{
+	unsigned long mask = _PAGE_RO | _PAGE_INVALID | _PAGE_SWT | _PAGE_SWX;
+	return (pte_val(pte) & mask) == _PAGE_TYPE_NONE ||
+		(!(pte_val(pte) & _PAGE_INVALID) &&
+		 !(pte_val(pte) & _PAGE_SWT));
+}
+
+static inline int pte_file(pte_t pte)
+{
+	unsigned long mask = _PAGE_RO | _PAGE_INVALID | _PAGE_SWT;
+	return (pte_val(pte) & mask) == _PAGE_TYPE_FILE;
+}
+
+static inline int pte_special(pte_t pte)
+{
+	return (pte_val(pte) & _PAGE_SPECIAL);
+}
+
+#define __HAVE_ARCH_PTE_SAME
+#define pte_same(a,b)  (pte_val(a) == pte_val(b))
+
+static inline void rcp_lock(pte_t *ptep)
+{
+#ifdef CONFIG_PGSTE
+	unsigned long *pgste = (unsigned long *) (ptep + PTRS_PER_PTE);
+	preempt_disable();
+	while (test_and_set_bit(RCP_PCL_BIT, pgste))
+		;
+#endif
+}
+
+static inline void rcp_unlock(pte_t *ptep)
+{
+#ifdef CONFIG_PGSTE
+	unsigned long *pgste = (unsigned long *) (ptep + PTRS_PER_PTE);
+	clear_bit(RCP_PCL_BIT, pgste);
+	preempt_enable();
+#endif
+}
+
+/* forward declaration for SetPageUptodate in page-flags.h*/
+static inline void page_clear_dirty(struct page *page);
+#include <linux/page-flags.h>
+
+static inline void ptep_rcp_copy(pte_t *ptep)
+{
+#ifdef CONFIG_PGSTE
+	struct page *page = virt_to_page(pte_val(*ptep));
+	unsigned int skey;
+	unsigned long *pgste = (unsigned long *) (ptep + PTRS_PER_PTE);
+
+	skey = page_get_storage_key(page_to_phys(page));
+	if (skey & _PAGE_CHANGED) {
+		set_bit_simple(RCP_GC_BIT, pgste);
+		set_bit_simple(KVM_UD_BIT, pgste);
+	}
+	if (skey & _PAGE_REFERENCED)
+		set_bit_simple(RCP_GR_BIT, pgste);
+	if (test_and_clear_bit_simple(RCP_HC_BIT, pgste)) {
+		SetPageDirty(page);
+		set_bit_simple(KVM_UD_BIT, pgste);
+	}
+	if (test_and_clear_bit_simple(RCP_HR_BIT, pgste))
+		SetPageReferenced(page);
+#endif
+}
+
+/*
+ * query functions pte_write/pte_dirty/pte_young only work if
+ * pte_present() is true. Undefined behaviour if not..
+ */
+static inline int pte_write(pte_t pte)
+{
+	return (pte_val(pte) & _PAGE_RO) == 0;
+}
+
+static inline int pte_dirty(pte_t pte)
+{
+	/* A pte is neither clean nor dirty on s/390. The dirty bit
+	 * is in the storage key. See page_test_and_clear_dirty for
+	 * details.
+	 */
+	return 0;
+}
+
+static inline int pte_young(pte_t pte)
+{
+	/* A pte is neither young nor old on s/390. The young bit
+	 * is in the storage key. See page_test_and_clear_young for
+	 * details.
+	 */
+	return 0;
+}
+
+/*
+ * pgd/pmd/pte modification functions
+ */
+
+#ifndef __s390x__
+
+#define pgd_clear(pgd)		do { } while (0)
+#define pud_clear(pud)		do { } while (0)
+
+#else /* __s390x__ */
+
+static inline void pgd_clear_kernel(pgd_t * pgd)
+{
+	if ((pgd_val(*pgd) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R2)
+		pgd_val(*pgd) = _REGION2_ENTRY_EMPTY;
+}
+
+static inline void pgd_clear(pgd_t * pgd)
+{
+	pgd_t *shadow = get_shadow_table(pgd);
+
+	pgd_clear_kernel(pgd);
+	if (shadow)
+		pgd_clear_kernel(shadow);
+}
+
+static inline void pud_clear_kernel(pud_t *pud)
+{
+	if ((pud_val(*pud) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R3)
+		pud_val(*pud) = _REGION3_ENTRY_EMPTY;
+}
+
+static inline void pud_clear(pud_t *pud)
+{
+	pud_t *shadow = get_shadow_table(pud);
+
+	pud_clear_kernel(pud);
+	if (shadow)
+		pud_clear_kernel(shadow);
+}
+
+#endif /* __s390x__ */
+
+static inline void pmd_clear_kernel(pmd_t * pmdp)
+{
+	pmd_val(*pmdp) = _SEGMENT_ENTRY_EMPTY;
+}
+
+static inline void pmd_clear(pmd_t *pmd)
+{
+	pmd_t *shadow = get_shadow_table(pmd);
+
+	pmd_clear_kernel(pmd);
+	if (shadow)
+		pmd_clear_kernel(shadow);
+}
+
+static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+{
+	if (mm->context.pgstes)
+		ptep_rcp_copy(ptep);
+	pte_val(*ptep) = _PAGE_TYPE_EMPTY;
+	if (mm->context.noexec)
+		pte_val(ptep[PTRS_PER_PTE]) = _PAGE_TYPE_EMPTY;
+}
+
+/*
+ * The following pte modification functions only work if
+ * pte_present() is true. Undefined behaviour if not..
+ */
+static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
+{
+	pte_val(pte) &= _PAGE_CHG_MASK;
+	pte_val(pte) |= pgprot_val(newprot);
+	return pte;
+}
+
+static inline pte_t pte_wrprotect(pte_t pte)
+{
+	/* Do not clobber _PAGE_TYPE_NONE pages!  */
+	if (!(pte_val(pte) & _PAGE_INVALID))
+		pte_val(pte) |= _PAGE_RO;
+	return pte;
+}
+
+static inline pte_t pte_mkwrite(pte_t pte)
+{
+	pte_val(pte) &= ~_PAGE_RO;
+	return pte;
+}
+
+static inline pte_t pte_mkclean(pte_t pte)
+{
+	/* The only user of pte_mkclean is the fork() code.
+	   We must *not* clear the *physical* page dirty bit
+	   just because fork() wants to clear the dirty bit in
+	   *one* of the page's mappings.  So we just do nothing. */
+	return pte;
+}
+
+static inline pte_t pte_mkdirty(pte_t pte)
+{
+	/* We do not explicitly set the dirty bit because the
+	 * sske instruction is slow. It is faster to let the
+	 * next instruction set the dirty bit.
+	 */
+	return pte;
+}
+
+static inline pte_t pte_mkold(pte_t pte)
+{
+	/* S/390 doesn't keep its dirty/referenced bit in the pte.
+	 * There is no point in clearing the real referenced bit.
+	 */
+	return pte;
+}
+
+static inline pte_t pte_mkyoung(pte_t pte)
+{
+	/* S/390 doesn't keep its dirty/referenced bit in the pte.
+	 * There is no point in setting the real referenced bit.
+	 */
+	return pte;
+}
+
+static inline pte_t pte_mkspecial(pte_t pte)
+{
+	pte_val(pte) |= _PAGE_SPECIAL;
+	return pte;
+}
+
+#ifdef CONFIG_PGSTE
+/*
+ * Get (and clear) the user dirty bit for a PTE.
+ */
+static inline int kvm_s390_test_and_clear_page_dirty(struct mm_struct *mm,
+						     pte_t *ptep)
+{
+	int dirty;
+	unsigned long *pgste;
+	struct page *page;
+	unsigned int skey;
+
+	if (!mm->context.pgstes)
+		return -EINVAL;
+	rcp_lock(ptep);
+	pgste = (unsigned long *) (ptep + PTRS_PER_PTE);
+	page = virt_to_page(pte_val(*ptep));
+	skey = page_get_storage_key(page_to_phys(page));
+	if (skey & _PAGE_CHANGED) {
+		set_bit_simple(RCP_GC_BIT, pgste);
+		set_bit_simple(KVM_UD_BIT, pgste);
+	}
+	if (test_and_clear_bit_simple(RCP_HC_BIT, pgste)) {
+		SetPageDirty(page);
+		set_bit_simple(KVM_UD_BIT, pgste);
+	}
+	dirty = test_and_clear_bit_simple(KVM_UD_BIT, pgste);
+	if (skey & _PAGE_CHANGED)
+		page_clear_dirty(page);
+	rcp_unlock(ptep);
+	return dirty;
+}
+#endif
+
+#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
+static inline int ptep_test_and_clear_young(struct vm_area_struct *vma,
+					    unsigned long addr, pte_t *ptep)
+{
+#ifdef CONFIG_PGSTE
+	unsigned long physpage;
+	int young;
+	unsigned long *pgste;
+
+	if (!vma->vm_mm->context.pgstes)
+		return 0;
+	physpage = pte_val(*ptep) & PAGE_MASK;
+	pgste = (unsigned long *) (ptep + PTRS_PER_PTE);
+
+	young = ((page_get_storage_key(physpage) & _PAGE_REFERENCED) != 0);
+	rcp_lock(ptep);
+	if (young)
+		set_bit_simple(RCP_GR_BIT, pgste);
+	young |= test_and_clear_bit_simple(RCP_HR_BIT, pgste);
+	rcp_unlock(ptep);
+	return young;
+#endif
+	return 0;
+}
+
+#define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH
+static inline int ptep_clear_flush_young(struct vm_area_struct *vma,
+					 unsigned long address, pte_t *ptep)
+{
+	/* No need to flush TLB
+	 * On s390 reference bits are in storage key and never in TLB
+	 * With virtualization we handle the reference bit, without we
+	 * we can simply return */
+#ifdef CONFIG_PGSTE
+	return ptep_test_and_clear_young(vma, address, ptep);
+#endif
+	return 0;
+}
+
+static inline void __ptep_ipte(unsigned long address, pte_t *ptep)
+{
+	if (!(pte_val(*ptep) & _PAGE_INVALID)) {
+#ifndef __s390x__
+		/* pto must point to the start of the segment table */
+		pte_t *pto = (pte_t *) (((unsigned long) ptep) & 0x7ffffc00);
+#else
+		/* ipte in zarch mode can do the math */
+		pte_t *pto = ptep;
+#endif
+		asm volatile(
+			"	ipte	%2,%3"
+			: "=m" (*ptep) : "m" (*ptep),
+			  "a" (pto), "a" (address));
+	}
+}
+
+static inline void ptep_invalidate(struct mm_struct *mm,
+				   unsigned long address, pte_t *ptep)
+{
+	if (mm->context.pgstes) {
+		rcp_lock(ptep);
+		__ptep_ipte(address, ptep);
+		ptep_rcp_copy(ptep);
+		pte_val(*ptep) = _PAGE_TYPE_EMPTY;
+		rcp_unlock(ptep);
+		return;
+	}
+	__ptep_ipte(address, ptep);
+	pte_val(*ptep) = _PAGE_TYPE_EMPTY;
+	if (mm->context.noexec) {
+		__ptep_ipte(address, ptep + PTRS_PER_PTE);
+		pte_val(*(ptep + PTRS_PER_PTE)) = _PAGE_TYPE_EMPTY;
+	}
+}
+
+/*
+ * This is hard to understand. ptep_get_and_clear and ptep_clear_flush
+ * both clear the TLB for the unmapped pte. The reason is that
+ * ptep_get_and_clear is used in common code (e.g. change_pte_range)
+ * to modify an active pte. The sequence is
+ *   1) ptep_get_and_clear
+ *   2) set_pte_at
+ *   3) flush_tlb_range
+ * On s390 the tlb needs to get flushed with the modification of the pte
+ * if the pte is active. The only way how this can be implemented is to
+ * have ptep_get_and_clear do the tlb flush. In exchange flush_tlb_range
+ * is a nop.
+ */
+#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
+#define ptep_get_and_clear(__mm, __address, __ptep)			\
+({									\
+	pte_t __pte = *(__ptep);					\
+	if (atomic_read(&(__mm)->mm_users) > 1 ||			\
+	    (__mm) != current->active_mm)				\
+		ptep_invalidate(__mm, __address, __ptep);		\
+	else								\
+		pte_clear((__mm), (__address), (__ptep));		\
+	__pte;								\
+})
+
+#define __HAVE_ARCH_PTEP_CLEAR_FLUSH
+static inline pte_t ptep_clear_flush(struct vm_area_struct *vma,
+				     unsigned long address, pte_t *ptep)
+{
+	pte_t pte = *ptep;
+	ptep_invalidate(vma->vm_mm, address, ptep);
+	return pte;
+}
+
+/*
+ * The batched pte unmap code uses ptep_get_and_clear_full to clear the
+ * ptes. Here an optimization is possible. tlb_gather_mmu flushes all
+ * tlbs of an mm if it can guarantee that the ptes of the mm_struct
+ * cannot be accessed while the batched unmap is running. In this case
+ * full==1 and a simple pte_clear is enough. See tlb.h.
+ */
+#define __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL
+static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm,
+					    unsigned long addr,
+					    pte_t *ptep, int full)
+{
+	pte_t pte = *ptep;
+
+	if (full)
+		pte_clear(mm, addr, ptep);
+	else
+		ptep_invalidate(mm, addr, ptep);
+	return pte;
+}
+
+#define __HAVE_ARCH_PTEP_SET_WRPROTECT
+#define ptep_set_wrprotect(__mm, __addr, __ptep)			\
+({									\
+	pte_t __pte = *(__ptep);					\
+	if (pte_write(__pte)) {						\
+		if (atomic_read(&(__mm)->mm_users) > 1 ||		\
+		    (__mm) != current->active_mm)			\
+			ptep_invalidate(__mm, __addr, __ptep);		\
+		set_pte_at(__mm, __addr, __ptep, pte_wrprotect(__pte));	\
+	}								\
+})
+
+#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
+#define ptep_set_access_flags(__vma, __addr, __ptep, __entry, __dirty)	\
+({									\
+	int __changed = !pte_same(*(__ptep), __entry);			\
+	if (__changed) {						\
+		ptep_invalidate((__vma)->vm_mm, __addr, __ptep);	\
+		set_pte_at((__vma)->vm_mm, __addr, __ptep, __entry);	\
+	}								\
+	__changed;							\
+})
+
+/*
+ * Test and clear dirty bit in storage key.
+ * We can't clear the changed bit atomically. This is a potential
+ * race against modification of the referenced bit. This function
+ * should therefore only be called if it is not mapped in any
+ * address space.
+ */
+#define __HAVE_ARCH_PAGE_TEST_DIRTY
+static inline int page_test_dirty(struct page *page)
+{
+	return (page_get_storage_key(page_to_phys(page)) & _PAGE_CHANGED) != 0;
+}
+
+#define __HAVE_ARCH_PAGE_CLEAR_DIRTY
+static inline void page_clear_dirty(struct page *page)
+{
+	page_set_storage_key(page_to_phys(page), PAGE_DEFAULT_KEY);
+}
+
+/*
+ * Test and clear referenced bit in storage key.
+ */
+#define __HAVE_ARCH_PAGE_TEST_AND_CLEAR_YOUNG
+static inline int page_test_and_clear_young(struct page *page)
+{
+	unsigned long physpage = page_to_phys(page);
+	int ccode;
+
+	asm volatile(
+		"	rrbe	0,%1\n"
+		"	ipm	%0\n"
+		"	srl	%0,28\n"
+		: "=d" (ccode) : "a" (physpage) : "cc" );
+	return ccode & 2;
+}
+
+/*
+ * Conversion functions: convert a page and protection to a page entry,
+ * and a page entry and page directory to the page they refer to.
+ */
+static inline pte_t mk_pte_phys(unsigned long physpage, pgprot_t pgprot)
+{
+	pte_t __pte;
+	pte_val(__pte) = physpage + pgprot_val(pgprot);
+	return __pte;
+}
+
+static inline pte_t mk_pte(struct page *page, pgprot_t pgprot)
+{
+	unsigned long physpage = page_to_phys(page);
+
+	return mk_pte_phys(physpage, pgprot);
+}
+
+#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
+#define pud_index(address) (((address) >> PUD_SHIFT) & (PTRS_PER_PUD-1))
+#define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
+#define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE-1))
+
+#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))
+#define pgd_offset_k(address) pgd_offset(&init_mm, address)
+
+#ifndef __s390x__
+
+#define pmd_deref(pmd) (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN)
+#define pud_deref(pmd) ({ BUG(); 0UL; })
+#define pgd_deref(pmd) ({ BUG(); 0UL; })
+
+#define pud_offset(pgd, address) ((pud_t *) pgd)
+#define pmd_offset(pud, address) ((pmd_t *) pud + pmd_index(address))
+
+#else /* __s390x__ */
+
+#define pmd_deref(pmd) (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN)
+#define pud_deref(pud) (pud_val(pud) & _REGION_ENTRY_ORIGIN)
+#define pgd_deref(pgd) (pgd_val(pgd) & _REGION_ENTRY_ORIGIN)
+
+static inline pud_t *pud_offset(pgd_t *pgd, unsigned long address)
+{
+	pud_t *pud = (pud_t *) pgd;
+	if ((pgd_val(*pgd) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R2)
+		pud = (pud_t *) pgd_deref(*pgd);
+	return pud  + pud_index(address);
+}
+
+static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
+{
+	pmd_t *pmd = (pmd_t *) pud;
+	if ((pud_val(*pud) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R3)
+		pmd = (pmd_t *) pud_deref(*pud);
+	return pmd + pmd_index(address);
+}
+
+#endif /* __s390x__ */
+
+#define pfn_pte(pfn,pgprot) mk_pte_phys(__pa((pfn) << PAGE_SHIFT),(pgprot))
+#define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT)
+#define pte_page(x) pfn_to_page(pte_pfn(x))
+
+#define pmd_page(pmd) pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT)
+
+/* Find an entry in the lowest level page table.. */
+#define pte_offset(pmd, addr) ((pte_t *) pmd_deref(*(pmd)) + pte_index(addr))
+#define pte_offset_kernel(pmd, address) pte_offset(pmd,address)
+#define pte_offset_map(pmd, address) pte_offset_kernel(pmd, address)
+#define pte_offset_map_nested(pmd, address) pte_offset_kernel(pmd, address)
+#define pte_unmap(pte) do { } while (0)
+#define pte_unmap_nested(pte) do { } while (0)
+
+/*
+ * 31 bit swap entry format:
+ * A page-table entry has some bits we have to treat in a special way.
+ * Bits 0, 20 and bit 23 have to be zero, otherwise an specification
+ * exception will occur instead of a page translation exception. The
+ * specifiation exception has the bad habit not to store necessary
+ * information in the lowcore.
+ * Bit 21 and bit 22 are the page invalid bit and the page protection
+ * bit. We set both to indicate a swapped page.
+ * Bit 30 and 31 are used to distinguish the different page types. For
+ * a swapped page these bits need to be zero.
+ * This leaves the bits 1-19 and bits 24-29 to store type and offset.
+ * We use the 5 bits from 25-29 for the type and the 20 bits from 1-19
+ * plus 24 for the offset.
+ * 0|     offset        |0110|o|type |00|
+ * 0 0000000001111111111 2222 2 22222 33
+ * 0 1234567890123456789 0123 4 56789 01
+ *
+ * 64 bit swap entry format:
+ * A page-table entry has some bits we have to treat in a special way.
+ * Bits 52 and bit 55 have to be zero, otherwise an specification
+ * exception will occur instead of a page translation exception. The
+ * specifiation exception has the bad habit not to store necessary
+ * information in the lowcore.
+ * Bit 53 and bit 54 are the page invalid bit and the page protection
+ * bit. We set both to indicate a swapped page.
+ * Bit 62 and 63 are used to distinguish the different page types. For
+ * a swapped page these bits need to be zero.
+ * This leaves the bits 0-51 and bits 56-61 to store type and offset.
+ * We use the 5 bits from 57-61 for the type and the 53 bits from 0-51
+ * plus 56 for the offset.
+ * |                      offset                        |0110|o|type |00|
+ *  0000000000111111111122222222223333333333444444444455 5555 5 55566 66
+ *  0123456789012345678901234567890123456789012345678901 2345 6 78901 23
+ */
+#ifndef __s390x__
+#define __SWP_OFFSET_MASK (~0UL >> 12)
+#else
+#define __SWP_OFFSET_MASK (~0UL >> 11)
+#endif
+static inline pte_t mk_swap_pte(unsigned long type, unsigned long offset)
+{
+	pte_t pte;
+	offset &= __SWP_OFFSET_MASK;
+	pte_val(pte) = _PAGE_TYPE_SWAP | ((type & 0x1f) << 2) |
+		((offset & 1UL) << 7) | ((offset & ~1UL) << 11);
+	return pte;
+}
+
+#define __swp_type(entry)	(((entry).val >> 2) & 0x1f)
+#define __swp_offset(entry)	(((entry).val >> 11) | (((entry).val >> 7) & 1))
+#define __swp_entry(type,offset) ((swp_entry_t) { pte_val(mk_swap_pte((type),(offset))) })
+
+#define __pte_to_swp_entry(pte)	((swp_entry_t) { pte_val(pte) })
+#define __swp_entry_to_pte(x)	((pte_t) { (x).val })
+
+#ifndef __s390x__
+# define PTE_FILE_MAX_BITS	26
+#else /* __s390x__ */
+# define PTE_FILE_MAX_BITS	59
+#endif /* __s390x__ */
+
+#define pte_to_pgoff(__pte) \
+	((((__pte).pte >> 12) << 7) + (((__pte).pte >> 1) & 0x7f))
+
+#define pgoff_to_pte(__off) \
+	((pte_t) { ((((__off) & 0x7f) << 1) + (((__off) >> 7) << 12)) \
+		   | _PAGE_TYPE_FILE })
+
+#endif /* !__ASSEMBLY__ */
+
+#define kern_addr_valid(addr)   (1)
+
+extern int vmem_add_mapping(unsigned long start, unsigned long size);
+extern int vmem_remove_mapping(unsigned long start, unsigned long size);
+extern int s390_enable_sie(void);
+
+/*
+ * No page table caches to initialise
+ */
+#define pgtable_cache_init()	do { } while (0)
+
+#include <asm-generic/pgtable.h>
+
+#endif /* _S390_PAGE_H */
diff --git a/arch/s390/include/asm/poll.h b/arch/s390/include/asm/poll.h
new file mode 100644
index 00000000000..c98509d3149
--- /dev/null
+++ b/arch/s390/include/asm/poll.h
@@ -0,0 +1 @@
+#include <asm-generic/poll.h>
diff --git a/arch/s390/include/asm/posix_types.h b/arch/s390/include/asm/posix_types.h
new file mode 100644
index 00000000000..397d93fba3a
--- /dev/null
+++ b/arch/s390/include/asm/posix_types.h
@@ -0,0 +1,111 @@
+/*
+ *  include/asm-s390/posix_types.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/posix_types.h"
+ */
+
+#ifndef __ARCH_S390_POSIX_TYPES_H
+#define __ARCH_S390_POSIX_TYPES_H
+
+/*
+ * This file is generally used by user-level software, so you need to
+ * be a little careful about namespace pollution etc.  Also, we cannot
+ * assume GCC is being used.
+ */
+
+typedef long            __kernel_off_t;
+typedef int             __kernel_pid_t;
+typedef unsigned long   __kernel_size_t;
+typedef long            __kernel_time_t;
+typedef long            __kernel_suseconds_t;
+typedef long            __kernel_clock_t;
+typedef int		__kernel_timer_t;
+typedef int		__kernel_clockid_t;
+typedef int             __kernel_daddr_t;
+typedef char *          __kernel_caddr_t;
+typedef unsigned short	__kernel_uid16_t;
+typedef unsigned short	__kernel_gid16_t;
+
+#ifdef __GNUC__
+typedef long long       __kernel_loff_t;
+#endif
+
+#ifndef __s390x__
+
+typedef unsigned long   __kernel_ino_t;
+typedef unsigned short  __kernel_mode_t;
+typedef unsigned short  __kernel_nlink_t;
+typedef unsigned short  __kernel_ipc_pid_t;
+typedef unsigned short  __kernel_uid_t;
+typedef unsigned short  __kernel_gid_t;
+typedef int             __kernel_ssize_t;
+typedef int             __kernel_ptrdiff_t;
+typedef unsigned int	__kernel_uid32_t;
+typedef unsigned int	__kernel_gid32_t;
+typedef unsigned short	__kernel_old_uid_t;
+typedef unsigned short	__kernel_old_gid_t;
+typedef unsigned short	__kernel_old_dev_t;
+
+#else /* __s390x__ */
+
+typedef unsigned int    __kernel_ino_t;
+typedef unsigned int    __kernel_mode_t;
+typedef unsigned int    __kernel_nlink_t;
+typedef int             __kernel_ipc_pid_t;
+typedef unsigned int    __kernel_uid_t;
+typedef unsigned int    __kernel_gid_t;
+typedef long            __kernel_ssize_t;
+typedef long            __kernel_ptrdiff_t;
+typedef unsigned long   __kernel_sigset_t;      /* at least 32 bits */
+typedef __kernel_uid_t __kernel_old_uid_t;
+typedef __kernel_gid_t __kernel_old_gid_t;
+typedef __kernel_uid_t __kernel_uid32_t;
+typedef __kernel_gid_t __kernel_gid32_t;
+typedef unsigned short __kernel_old_dev_t;
+
+#endif /* __s390x__ */
+
+typedef struct {
+#if defined(__KERNEL__) || defined(__USE_ALL)
+        int     val[2];
+#else                        /* !defined(__KERNEL__) && !defined(__USE_ALL)*/
+        int     __val[2];
+#endif                       /* !defined(__KERNEL__) && !defined(__USE_ALL)*/
+} __kernel_fsid_t;
+
+
+#ifdef __KERNEL__
+
+#undef __FD_SET
+static inline void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp)
+{
+	unsigned long _tmp = fd / __NFDBITS;
+	unsigned long _rem = fd % __NFDBITS;
+	fdsetp->fds_bits[_tmp] |= (1UL<<_rem);
+}
+
+#undef __FD_CLR
+static inline void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp)
+{
+	unsigned long _tmp = fd / __NFDBITS;
+	unsigned long _rem = fd % __NFDBITS;
+	fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem);
+}
+
+#undef __FD_ISSET
+static inline int __FD_ISSET(unsigned long fd, const __kernel_fd_set *fdsetp)
+{
+	unsigned long _tmp = fd / __NFDBITS;
+	unsigned long _rem = fd % __NFDBITS;
+	return (fdsetp->fds_bits[_tmp] & (1UL<<_rem)) != 0;
+}
+
+#undef  __FD_ZERO
+#define __FD_ZERO(fdsetp) \
+	((void) memset ((void *) (fdsetp), 0, sizeof (__kernel_fd_set)))
+
+#endif     /* __KERNEL__ */
+
+#endif
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
new file mode 100644
index 00000000000..4af80af2a88
--- /dev/null
+++ b/arch/s390/include/asm/processor.h
@@ -0,0 +1,360 @@
+/*
+ *  include/asm-s390/processor.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Hartmut Penner (hp@de.ibm.com),
+ *               Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/processor.h"
+ *    Copyright (C) 1994, Linus Torvalds
+ */
+
+#ifndef __ASM_S390_PROCESSOR_H
+#define __ASM_S390_PROCESSOR_H
+
+#include <asm/ptrace.h>
+
+#ifdef __KERNEL__
+/*
+ * Default implementation of macro that returns current
+ * instruction pointer ("program counter").
+ */
+#define current_text_addr() ({ void *pc; asm("basr %0,0" : "=a" (pc)); pc; })
+
+/*
+ *  CPU type and hardware bug flags. Kept separately for each CPU.
+ *  Members of this structure are referenced in head.S, so think twice
+ *  before touching them. [mj]
+ */
+
+typedef struct
+{
+        unsigned int version :  8;
+        unsigned int ident   : 24;
+        unsigned int machine : 16;
+        unsigned int unused  : 16;
+} __attribute__ ((packed)) cpuid_t;
+
+static inline void get_cpu_id(cpuid_t *ptr)
+{
+	asm volatile("stidp 0(%1)" : "=m" (*ptr) : "a" (ptr));
+}
+
+struct cpuinfo_S390
+{
+        cpuid_t  cpu_id;
+        __u16    cpu_addr;
+        __u16    cpu_nr;
+        unsigned long loops_per_jiffy;
+        unsigned long *pgd_quick;
+#ifdef __s390x__
+        unsigned long *pmd_quick;
+#endif /* __s390x__ */
+        unsigned long *pte_quick;
+        unsigned long pgtable_cache_sz;
+};
+
+extern void s390_adjust_jiffies(void);
+extern void print_cpu_info(struct cpuinfo_S390 *);
+extern int get_cpu_capability(unsigned int *);
+
+/*
+ * User space process size: 2GB for 31 bit, 4TB for 64 bit.
+ */
+#ifndef __s390x__
+
+#define TASK_SIZE		(1UL << 31)
+#define TASK_UNMAPPED_BASE	(1UL << 30)
+
+#else /* __s390x__ */
+
+#define TASK_SIZE_OF(tsk)	(test_tsk_thread_flag(tsk,TIF_31BIT) ? \
+					(1UL << 31) : (1UL << 53))
+#define TASK_UNMAPPED_BASE	(test_thread_flag(TIF_31BIT) ? \
+					(1UL << 30) : (1UL << 41))
+#define TASK_SIZE		TASK_SIZE_OF(current)
+
+#endif /* __s390x__ */
+
+#ifdef __KERNEL__
+
+#ifndef __s390x__
+#define STACK_TOP		(1UL << 31)
+#define STACK_TOP_MAX		(1UL << 31)
+#else /* __s390x__ */
+#define STACK_TOP		(1UL << (test_thread_flag(TIF_31BIT) ? 31:42))
+#define STACK_TOP_MAX		(1UL << 42)
+#endif /* __s390x__ */
+
+
+#endif
+
+#define HAVE_ARCH_PICK_MMAP_LAYOUT
+
+typedef struct {
+        __u32 ar4;
+} mm_segment_t;
+
+/*
+ * Thread structure
+ */
+struct thread_struct {
+	s390_fp_regs fp_regs;
+	unsigned int  acrs[NUM_ACRS];
+        unsigned long ksp;              /* kernel stack pointer             */
+	mm_segment_t mm_segment;
+        unsigned long prot_addr;        /* address of protection-excep.     */
+        unsigned int trap_no;
+        per_struct per_info;
+	/* Used to give failing instruction back to user for ieee exceptions */
+	unsigned long ieee_instruction_pointer; 
+        /* pfault_wait is used to block the process on a pfault event */
+	unsigned long pfault_wait;
+};
+
+typedef struct thread_struct thread_struct;
+
+/*
+ * Stack layout of a C stack frame.
+ */
+#ifndef __PACK_STACK
+struct stack_frame {
+	unsigned long back_chain;
+	unsigned long empty1[5];
+	unsigned long gprs[10];
+	unsigned int  empty2[8];
+};
+#else
+struct stack_frame {
+	unsigned long empty1[5];
+	unsigned int  empty2[8];
+	unsigned long gprs[10];
+	unsigned long back_chain;
+};
+#endif
+
+#define ARCH_MIN_TASKALIGN	8
+
+#define INIT_THREAD {							\
+	.ksp = sizeof(init_stack) + (unsigned long) &init_stack,	\
+}
+
+/*
+ * Do necessary setup to start up a new thread.
+ */
+#define start_thread(regs, new_psw, new_stackp) do {		\
+	set_fs(USER_DS);					\
+	regs->psw.mask	= psw_user_bits;			\
+	regs->psw.addr	= new_psw | PSW_ADDR_AMODE;		\
+	regs->gprs[15]	= new_stackp;				\
+} while (0)
+
+#define start_thread31(regs, new_psw, new_stackp) do {		\
+	set_fs(USER_DS);					\
+	regs->psw.mask	= psw_user32_bits;			\
+	regs->psw.addr	= new_psw | PSW_ADDR_AMODE;		\
+	regs->gprs[15]	= new_stackp;				\
+	crst_table_downgrade(current->mm, 1UL << 31);		\
+} while (0)
+
+/* Forward declaration, a strange C thing */
+struct task_struct;
+struct mm_struct;
+struct seq_file;
+
+/* Free all resources held by a thread. */
+extern void release_thread(struct task_struct *);
+extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
+
+/* Prepare to copy thread state - unlazy all lazy status */
+#define prepare_to_copy(tsk)	do { } while (0)
+
+/*
+ * Return saved PC of a blocked thread.
+ */
+extern unsigned long thread_saved_pc(struct task_struct *t);
+
+/*
+ * Print register of task into buffer. Used in fs/proc/array.c.
+ */
+extern void task_show_regs(struct seq_file *m, struct task_struct *task);
+
+extern void show_code(struct pt_regs *regs);
+
+unsigned long get_wchan(struct task_struct *p);
+#define task_pt_regs(tsk) ((struct pt_regs *) \
+        (task_stack_page(tsk) + THREAD_SIZE) - 1)
+#define KSTK_EIP(tsk)	(task_pt_regs(tsk)->psw.addr)
+#define KSTK_ESP(tsk)	(task_pt_regs(tsk)->gprs[15])
+
+/*
+ * Give up the time slice of the virtual PU.
+ */
+static inline void cpu_relax(void)
+{
+	if (MACHINE_HAS_DIAG44)
+		asm volatile("diag 0,0,68");
+	barrier();
+}
+
+static inline void psw_set_key(unsigned int key)
+{
+	asm volatile("spka 0(%0)" : : "d" (key));
+}
+
+/*
+ * Set PSW to specified value.
+ */
+static inline void __load_psw(psw_t psw)
+{
+#ifndef __s390x__
+	asm volatile("lpsw  0(%0)" : : "a" (&psw), "m" (psw) : "cc");
+#else
+	asm volatile("lpswe 0(%0)" : : "a" (&psw), "m" (psw) : "cc");
+#endif
+}
+
+/*
+ * Set PSW mask to specified value, while leaving the
+ * PSW addr pointing to the next instruction.
+ */
+
+static inline void __load_psw_mask (unsigned long mask)
+{
+	unsigned long addr;
+	psw_t psw;
+
+	psw.mask = mask;
+
+#ifndef __s390x__
+	asm volatile(
+		"	basr	%0,0\n"
+		"0:	ahi	%0,1f-0b\n"
+		"	st	%0,4(%1)\n"
+		"	lpsw	0(%1)\n"
+		"1:"
+		: "=&d" (addr) : "a" (&psw), "m" (psw) : "memory", "cc");
+#else /* __s390x__ */
+	asm volatile(
+		"	larl	%0,1f\n"
+		"	stg	%0,8(%1)\n"
+		"	lpswe	0(%1)\n"
+		"1:"
+		: "=&d" (addr) : "a" (&psw), "m" (psw) : "memory", "cc");
+#endif /* __s390x__ */
+}
+ 
+/*
+ * Function to stop a processor until an interruption occurred
+ */
+static inline void enabled_wait(void)
+{
+	__load_psw_mask(PSW_BASE_BITS | PSW_MASK_IO | PSW_MASK_EXT |
+			PSW_MASK_MCHECK | PSW_MASK_WAIT | PSW_DEFAULT_KEY);
+}
+
+/*
+ * Function to drop a processor into disabled wait state
+ */
+
+static inline void disabled_wait(unsigned long code)
+{
+        unsigned long ctl_buf;
+        psw_t dw_psw;
+
+        dw_psw.mask = PSW_BASE_BITS | PSW_MASK_WAIT;
+        dw_psw.addr = code;
+        /* 
+         * Store status and then load disabled wait psw,
+         * the processor is dead afterwards
+         */
+#ifndef __s390x__
+	asm volatile(
+		"	stctl	0,0,0(%2)\n"
+		"	ni	0(%2),0xef\n"	/* switch off protection */
+		"	lctl	0,0,0(%2)\n"
+		"	stpt	0xd8\n"		/* store timer */
+		"	stckc	0xe0\n"		/* store clock comparator */
+		"	stpx	0x108\n"	/* store prefix register */
+		"	stam	0,15,0x120\n"	/* store access registers */
+		"	std	0,0x160\n"	/* store f0 */
+		"	std	2,0x168\n"	/* store f2 */
+		"	std	4,0x170\n"	/* store f4 */
+		"	std	6,0x178\n"	/* store f6 */
+		"	stm	0,15,0x180\n"	/* store general registers */
+		"	stctl	0,15,0x1c0\n"	/* store control registers */
+		"	oi	0x1c0,0x10\n"	/* fake protection bit */
+		"	lpsw	0(%1)"
+		: "=m" (ctl_buf)
+		: "a" (&dw_psw), "a" (&ctl_buf), "m" (dw_psw) : "cc");
+#else /* __s390x__ */
+	asm volatile(
+		"	stctg	0,0,0(%2)\n"
+		"	ni	4(%2),0xef\n"	/* switch off protection */
+		"	lctlg	0,0,0(%2)\n"
+		"	lghi	1,0x1000\n"
+		"	stpt	0x328(1)\n"	/* store timer */
+		"	stckc	0x330(1)\n"	/* store clock comparator */
+		"	stpx	0x318(1)\n"	/* store prefix register */
+		"	stam	0,15,0x340(1)\n"/* store access registers */
+		"	stfpc	0x31c(1)\n"	/* store fpu control */
+		"	std	0,0x200(1)\n"	/* store f0 */
+		"	std	1,0x208(1)\n"	/* store f1 */
+		"	std	2,0x210(1)\n"	/* store f2 */
+		"	std	3,0x218(1)\n"	/* store f3 */
+		"	std	4,0x220(1)\n"	/* store f4 */
+		"	std	5,0x228(1)\n"	/* store f5 */
+		"	std	6,0x230(1)\n"	/* store f6 */
+		"	std	7,0x238(1)\n"	/* store f7 */
+		"	std	8,0x240(1)\n"	/* store f8 */
+		"	std	9,0x248(1)\n"	/* store f9 */
+		"	std	10,0x250(1)\n"	/* store f10 */
+		"	std	11,0x258(1)\n"	/* store f11 */
+		"	std	12,0x260(1)\n"	/* store f12 */
+		"	std	13,0x268(1)\n"	/* store f13 */
+		"	std	14,0x270(1)\n"	/* store f14 */
+		"	std	15,0x278(1)\n"	/* store f15 */
+		"	stmg	0,15,0x280(1)\n"/* store general registers */
+		"	stctg	0,15,0x380(1)\n"/* store control registers */
+		"	oi	0x384(1),0x10\n"/* fake protection bit */
+		"	lpswe	0(%1)"
+		: "=m" (ctl_buf)
+		: "a" (&dw_psw), "a" (&ctl_buf), "m" (dw_psw) : "cc", "0");
+#endif /* __s390x__ */
+}
+
+/*
+ * Basic Machine Check/Program Check Handler.
+ */
+
+extern void s390_base_mcck_handler(void);
+extern void s390_base_pgm_handler(void);
+extern void s390_base_ext_handler(void);
+
+extern void (*s390_base_mcck_handler_fn)(void);
+extern void (*s390_base_pgm_handler_fn)(void);
+extern void (*s390_base_ext_handler_fn)(void);
+
+#define ARCH_LOW_ADDRESS_LIMIT	0x7fffffffUL
+
+#endif
+
+/*
+ * Helper macro for exception table entries
+ */
+#ifndef __s390x__
+#define EX_TABLE(_fault,_target)			\
+	".section __ex_table,\"a\"\n"			\
+	"	.align 4\n"				\
+	"	.long  " #_fault "," #_target "\n"	\
+	".previous\n"
+#else
+#define EX_TABLE(_fault,_target)			\
+	".section __ex_table,\"a\"\n"			\
+	"	.align 8\n"				\
+	"	.quad  " #_fault "," #_target "\n"	\
+	".previous\n"
+#endif
+
+#endif                                 /* __ASM_S390_PROCESSOR_H           */
diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h
new file mode 100644
index 00000000000..a7226f8143f
--- /dev/null
+++ b/arch/s390/include/asm/ptrace.h
@@ -0,0 +1,500 @@
+/*
+ *  include/asm-s390/ptrace.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
+ */
+
+#ifndef _S390_PTRACE_H
+#define _S390_PTRACE_H
+
+/*
+ * Offsets in the user_regs_struct. They are used for the ptrace
+ * system call and in entry.S
+ */
+#ifndef __s390x__
+
+#define PT_PSWMASK  0x00
+#define PT_PSWADDR  0x04
+#define PT_GPR0     0x08
+#define PT_GPR1     0x0C
+#define PT_GPR2     0x10
+#define PT_GPR3     0x14
+#define PT_GPR4     0x18
+#define PT_GPR5     0x1C
+#define PT_GPR6     0x20
+#define PT_GPR7     0x24
+#define PT_GPR8     0x28
+#define PT_GPR9     0x2C
+#define PT_GPR10    0x30
+#define PT_GPR11    0x34
+#define PT_GPR12    0x38
+#define PT_GPR13    0x3C
+#define PT_GPR14    0x40
+#define PT_GPR15    0x44
+#define PT_ACR0     0x48
+#define PT_ACR1     0x4C
+#define PT_ACR2     0x50
+#define PT_ACR3     0x54
+#define PT_ACR4	    0x58
+#define PT_ACR5	    0x5C
+#define PT_ACR6	    0x60
+#define PT_ACR7	    0x64
+#define PT_ACR8	    0x68
+#define PT_ACR9	    0x6C
+#define PT_ACR10    0x70
+#define PT_ACR11    0x74
+#define PT_ACR12    0x78
+#define PT_ACR13    0x7C
+#define PT_ACR14    0x80
+#define PT_ACR15    0x84
+#define PT_ORIGGPR2 0x88
+#define PT_FPC	    0x90
+/*
+ * A nasty fact of life that the ptrace api
+ * only supports passing of longs.
+ */
+#define PT_FPR0_HI  0x98
+#define PT_FPR0_LO  0x9C
+#define PT_FPR1_HI  0xA0
+#define PT_FPR1_LO  0xA4
+#define PT_FPR2_HI  0xA8
+#define PT_FPR2_LO  0xAC
+#define PT_FPR3_HI  0xB0
+#define PT_FPR3_LO  0xB4
+#define PT_FPR4_HI  0xB8
+#define PT_FPR4_LO  0xBC
+#define PT_FPR5_HI  0xC0
+#define PT_FPR5_LO  0xC4
+#define PT_FPR6_HI  0xC8
+#define PT_FPR6_LO  0xCC
+#define PT_FPR7_HI  0xD0
+#define PT_FPR7_LO  0xD4
+#define PT_FPR8_HI  0xD8
+#define PT_FPR8_LO  0XDC
+#define PT_FPR9_HI  0xE0
+#define PT_FPR9_LO  0xE4
+#define PT_FPR10_HI 0xE8
+#define PT_FPR10_LO 0xEC
+#define PT_FPR11_HI 0xF0
+#define PT_FPR11_LO 0xF4
+#define PT_FPR12_HI 0xF8
+#define PT_FPR12_LO 0xFC
+#define PT_FPR13_HI 0x100
+#define PT_FPR13_LO 0x104
+#define PT_FPR14_HI 0x108
+#define PT_FPR14_LO 0x10C
+#define PT_FPR15_HI 0x110
+#define PT_FPR15_LO 0x114
+#define PT_CR_9	    0x118
+#define PT_CR_10    0x11C
+#define PT_CR_11    0x120
+#define PT_IEEE_IP  0x13C
+#define PT_LASTOFF  PT_IEEE_IP
+#define PT_ENDREGS  0x140-1
+
+#define GPR_SIZE	4
+#define CR_SIZE		4
+
+#define STACK_FRAME_OVERHEAD	96	/* size of minimum stack frame */
+
+#else /* __s390x__ */
+
+#define PT_PSWMASK  0x00
+#define PT_PSWADDR  0x08
+#define PT_GPR0     0x10
+#define PT_GPR1     0x18
+#define PT_GPR2     0x20
+#define PT_GPR3     0x28
+#define PT_GPR4     0x30
+#define PT_GPR5     0x38
+#define PT_GPR6     0x40
+#define PT_GPR7     0x48
+#define PT_GPR8     0x50
+#define PT_GPR9     0x58
+#define PT_GPR10    0x60
+#define PT_GPR11    0x68
+#define PT_GPR12    0x70
+#define PT_GPR13    0x78
+#define PT_GPR14    0x80
+#define PT_GPR15    0x88
+#define PT_ACR0     0x90
+#define PT_ACR1     0x94
+#define PT_ACR2     0x98
+#define PT_ACR3     0x9C
+#define PT_ACR4	    0xA0
+#define PT_ACR5	    0xA4
+#define PT_ACR6	    0xA8
+#define PT_ACR7	    0xAC
+#define PT_ACR8	    0xB0
+#define PT_ACR9	    0xB4
+#define PT_ACR10    0xB8
+#define PT_ACR11    0xBC
+#define PT_ACR12    0xC0
+#define PT_ACR13    0xC4
+#define PT_ACR14    0xC8
+#define PT_ACR15    0xCC
+#define PT_ORIGGPR2 0xD0
+#define PT_FPC	    0xD8
+#define PT_FPR0     0xE0
+#define PT_FPR1     0xE8
+#define PT_FPR2     0xF0
+#define PT_FPR3     0xF8
+#define PT_FPR4     0x100
+#define PT_FPR5     0x108
+#define PT_FPR6     0x110
+#define PT_FPR7     0x118
+#define PT_FPR8     0x120
+#define PT_FPR9     0x128
+#define PT_FPR10    0x130
+#define PT_FPR11    0x138
+#define PT_FPR12    0x140
+#define PT_FPR13    0x148
+#define PT_FPR14    0x150
+#define PT_FPR15    0x158
+#define PT_CR_9     0x160
+#define PT_CR_10    0x168
+#define PT_CR_11    0x170
+#define PT_IEEE_IP  0x1A8
+#define PT_LASTOFF  PT_IEEE_IP
+#define PT_ENDREGS  0x1B0-1
+
+#define GPR_SIZE	8
+#define CR_SIZE		8
+
+#define STACK_FRAME_OVERHEAD    160      /* size of minimum stack frame */
+
+#endif /* __s390x__ */
+
+#define NUM_GPRS	16
+#define NUM_FPRS	16
+#define NUM_CRS		16
+#define NUM_ACRS	16
+
+#define FPR_SIZE	8
+#define FPC_SIZE	4
+#define FPC_PAD_SIZE	4 /* gcc insists on aligning the fpregs */
+#define ACR_SIZE	4
+
+
+#define PTRACE_OLDSETOPTIONS         21
+
+#ifndef __ASSEMBLY__
+#include <linux/stddef.h>
+#include <linux/types.h>
+
+typedef union
+{
+	float   f;
+	double  d;
+        __u64   ui;
+	struct
+	{
+		__u32 hi;
+		__u32 lo;
+	} fp;
+} freg_t;
+
+typedef struct
+{
+	__u32   fpc;
+	freg_t  fprs[NUM_FPRS];              
+} s390_fp_regs;
+
+#define FPC_EXCEPTION_MASK      0xF8000000
+#define FPC_FLAGS_MASK          0x00F80000
+#define FPC_DXC_MASK            0x0000FF00
+#define FPC_RM_MASK             0x00000003
+#define FPC_VALID_MASK          0xF8F8FF03
+
+/* this typedef defines how a Program Status Word looks like */
+typedef struct 
+{
+        unsigned long mask;
+        unsigned long addr;
+} __attribute__ ((aligned(8))) psw_t;
+
+typedef struct
+{
+	__u32	mask;
+	__u32	addr;
+} __attribute__ ((aligned(8))) psw_compat_t;
+
+#ifndef __s390x__
+
+#define PSW_MASK_PER		0x40000000UL
+#define PSW_MASK_DAT		0x04000000UL
+#define PSW_MASK_IO		0x02000000UL
+#define PSW_MASK_EXT		0x01000000UL
+#define PSW_MASK_KEY		0x00F00000UL
+#define PSW_MASK_MCHECK		0x00040000UL
+#define PSW_MASK_WAIT		0x00020000UL
+#define PSW_MASK_PSTATE		0x00010000UL
+#define PSW_MASK_ASC		0x0000C000UL
+#define PSW_MASK_CC		0x00003000UL
+#define PSW_MASK_PM		0x00000F00UL
+
+#define PSW_ADDR_AMODE		0x80000000UL
+#define PSW_ADDR_INSN		0x7FFFFFFFUL
+
+#define PSW_BASE_BITS		0x00080000UL
+#define PSW_DEFAULT_KEY		(((unsigned long) PAGE_DEFAULT_ACC) << 20)
+
+#define PSW_ASC_PRIMARY		0x00000000UL
+#define PSW_ASC_ACCREG		0x00004000UL
+#define PSW_ASC_SECONDARY	0x00008000UL
+#define PSW_ASC_HOME		0x0000C000UL
+
+#else /* __s390x__ */
+
+#define PSW_MASK_PER		0x4000000000000000UL
+#define PSW_MASK_DAT		0x0400000000000000UL
+#define PSW_MASK_IO		0x0200000000000000UL
+#define PSW_MASK_EXT		0x0100000000000000UL
+#define PSW_MASK_KEY		0x00F0000000000000UL
+#define PSW_MASK_MCHECK		0x0004000000000000UL
+#define PSW_MASK_WAIT		0x0002000000000000UL
+#define PSW_MASK_PSTATE		0x0001000000000000UL
+#define PSW_MASK_ASC		0x0000C00000000000UL
+#define PSW_MASK_CC		0x0000300000000000UL
+#define PSW_MASK_PM		0x00000F0000000000UL
+
+#define PSW_ADDR_AMODE		0x0000000000000000UL
+#define PSW_ADDR_INSN		0xFFFFFFFFFFFFFFFFUL
+
+#define PSW_BASE_BITS		0x0000000180000000UL
+#define PSW_BASE32_BITS		0x0000000080000000UL
+#define PSW_DEFAULT_KEY		(((unsigned long) PAGE_DEFAULT_ACC) << 52)
+
+#define PSW_ASC_PRIMARY		0x0000000000000000UL
+#define PSW_ASC_ACCREG		0x0000400000000000UL
+#define PSW_ASC_SECONDARY	0x0000800000000000UL
+#define PSW_ASC_HOME		0x0000C00000000000UL
+
+extern long psw_user32_bits;
+
+#endif /* __s390x__ */
+
+extern long psw_kernel_bits;
+extern long psw_user_bits;
+
+/* This macro merges a NEW PSW mask specified by the user into
+   the currently active PSW mask CURRENT, modifying only those
+   bits in CURRENT that the user may be allowed to change: this
+   is the condition code and the program mask bits.  */
+#define PSW_MASK_MERGE(CURRENT,NEW) \
+	(((CURRENT) & ~(PSW_MASK_CC|PSW_MASK_PM)) | \
+	 ((NEW) & (PSW_MASK_CC|PSW_MASK_PM)))
+
+/*
+ * The s390_regs structure is used to define the elf_gregset_t.
+ */
+typedef struct
+{
+	psw_t psw;
+	unsigned long gprs[NUM_GPRS];
+	unsigned int  acrs[NUM_ACRS];
+	unsigned long orig_gpr2;
+} s390_regs;
+
+typedef struct
+{
+	psw_compat_t	psw;
+	__u32		gprs[NUM_GPRS];
+	__u32		acrs[NUM_ACRS];
+	__u32		orig_gpr2;
+} s390_compat_regs;
+
+
+#ifdef __KERNEL__
+#include <asm/setup.h>
+#include <asm/page.h>
+
+/*
+ * The pt_regs struct defines the way the registers are stored on
+ * the stack during a system call.
+ */
+struct pt_regs 
+{
+	unsigned long args[1];
+	psw_t psw;
+	unsigned long gprs[NUM_GPRS];
+	unsigned long orig_gpr2;
+	unsigned short ilc;
+	unsigned short trap;
+};
+#endif
+
+/*
+ * Now for the program event recording (trace) definitions.
+ */
+typedef struct
+{
+	unsigned long cr[3];
+} per_cr_words;
+
+#define PER_EM_MASK 0xE8000000UL
+
+typedef	struct
+{
+#ifdef __s390x__
+	unsigned                       : 32;
+#endif /* __s390x__ */
+	unsigned em_branching          : 1;
+	unsigned em_instruction_fetch  : 1;
+	/*
+	 * Switching on storage alteration automatically fixes
+	 * the storage alteration event bit in the users std.
+	 */
+	unsigned em_storage_alteration : 1;
+	unsigned em_gpr_alt_unused     : 1;
+	unsigned em_store_real_address : 1;
+	unsigned                       : 3;
+	unsigned branch_addr_ctl       : 1;
+	unsigned                       : 1;
+	unsigned storage_alt_space_ctl : 1;
+	unsigned                       : 21;
+	unsigned long starting_addr;
+	unsigned long ending_addr;
+} per_cr_bits;
+
+typedef struct
+{
+	unsigned short perc_atmid;
+	unsigned long address;
+	unsigned char access_id;
+} per_lowcore_words;
+
+typedef struct
+{
+	unsigned perc_branching          : 1;
+	unsigned perc_instruction_fetch  : 1;
+	unsigned perc_storage_alteration : 1;
+	unsigned perc_gpr_alt_unused     : 1;
+	unsigned perc_store_real_address : 1;
+	unsigned                         : 3;
+	unsigned atmid_psw_bit_31        : 1;
+	unsigned atmid_validity_bit      : 1;
+	unsigned atmid_psw_bit_32        : 1;
+	unsigned atmid_psw_bit_5         : 1;
+	unsigned atmid_psw_bit_16        : 1;
+	unsigned atmid_psw_bit_17        : 1;
+	unsigned si                      : 2;
+	unsigned long address;
+	unsigned                         : 4;
+	unsigned access_id               : 4;
+} per_lowcore_bits;
+
+typedef struct
+{
+	union {
+		per_cr_words   words;
+		per_cr_bits    bits;
+	} control_regs;
+	/*
+	 * Use these flags instead of setting em_instruction_fetch
+	 * directly they are used so that single stepping can be
+	 * switched on & off while not affecting other tracing
+	 */
+	unsigned  single_step       : 1;
+	unsigned  instruction_fetch : 1;
+	unsigned                    : 30;
+	/*
+	 * These addresses are copied into cr10 & cr11 if single
+	 * stepping is switched off
+	 */
+	unsigned long starting_addr;
+	unsigned long ending_addr;
+	union {
+		per_lowcore_words words;
+		per_lowcore_bits  bits;
+	} lowcore; 
+} per_struct;
+
+typedef struct
+{
+	unsigned int  len;
+	unsigned long kernel_addr;
+	unsigned long process_addr;
+} ptrace_area;
+
+/*
+ * S/390 specific non posix ptrace requests. I chose unusual values so
+ * they are unlikely to clash with future ptrace definitions.
+ */
+#define PTRACE_PEEKUSR_AREA           0x5000
+#define PTRACE_POKEUSR_AREA           0x5001
+#define PTRACE_PEEKTEXT_AREA	      0x5002
+#define PTRACE_PEEKDATA_AREA	      0x5003
+#define PTRACE_POKETEXT_AREA	      0x5004
+#define PTRACE_POKEDATA_AREA 	      0x5005
+
+/*
+ * PT_PROT definition is loosely based on hppa bsd definition in
+ * gdb/hppab-nat.c
+ */
+#define PTRACE_PROT                       21
+
+typedef enum
+{
+	ptprot_set_access_watchpoint,
+	ptprot_set_write_watchpoint,
+	ptprot_disable_watchpoint
+} ptprot_flags;
+
+typedef struct
+{
+	unsigned long lowaddr;
+	unsigned long hiaddr;
+	ptprot_flags prot;
+} ptprot_area;                     
+
+/* Sequence of bytes for breakpoint illegal instruction.  */
+#define S390_BREAKPOINT     {0x0,0x1}
+#define S390_BREAKPOINT_U16 ((__u16)0x0001)
+#define S390_SYSCALL_OPCODE ((__u16)0x0a00)
+#define S390_SYSCALL_SIZE   2
+
+/*
+ * The user_regs_struct defines the way the user registers are
+ * store on the stack for signal handling.
+ */
+struct user_regs_struct
+{
+	psw_t psw;
+	unsigned long gprs[NUM_GPRS];
+	unsigned int  acrs[NUM_ACRS];
+	unsigned long orig_gpr2;
+	s390_fp_regs fp_regs;
+	/*
+	 * These per registers are in here so that gdb can modify them
+	 * itself as there is no "official" ptrace interface for hardware
+	 * watchpoints. This is the way intel does it.
+	 */
+	per_struct per_info;
+	unsigned long ieee_instruction_pointer; 
+	/* Used to give failing instruction back to user for ieee exceptions */
+};
+
+#ifdef __KERNEL__
+/*
+ * These are defined as per linux/ptrace.h, which see.
+ */
+#define arch_has_single_step()	(1)
+struct task_struct;
+extern void user_enable_single_step(struct task_struct *);
+extern void user_disable_single_step(struct task_struct *);
+
+#define __ARCH_WANT_COMPAT_SYS_PTRACE
+
+#define user_mode(regs) (((regs)->psw.mask & PSW_MASK_PSTATE) != 0)
+#define instruction_pointer(regs) ((regs)->psw.addr & PSW_ADDR_INSN)
+#define user_stack_pointer(regs)((regs)->gprs[15])
+#define regs_return_value(regs)((regs)->gprs[2])
+#define profile_pc(regs) instruction_pointer(regs)
+extern void show_regs(struct pt_regs * regs);
+#endif /* __KERNEL__ */
+#endif /* __ASSEMBLY__ */
+
+#endif /* _S390_PTRACE_H */
diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h
new file mode 100644
index 00000000000..4734c3f0535
--- /dev/null
+++ b/arch/s390/include/asm/qdio.h
@@ -0,0 +1,388 @@
+/*
+ * linux/include/asm-s390/qdio.h
+ *
+ * Copyright 2000,2008 IBM Corp.
+ * Author(s): Utz Bacher <utz.bacher@de.ibm.com>
+ *	      Jan Glauber <jang@linux.vnet.ibm.com>
+ *
+ */
+#ifndef __QDIO_H__
+#define __QDIO_H__
+
+#include <linux/interrupt.h>
+#include <asm/cio.h>
+#include <asm/ccwdev.h>
+
+#define QDIO_MAX_QUEUES_PER_IRQ		32
+#define QDIO_MAX_BUFFERS_PER_Q		128
+#define QDIO_MAX_BUFFERS_MASK		(QDIO_MAX_BUFFERS_PER_Q - 1)
+#define QDIO_MAX_ELEMENTS_PER_BUFFER	16
+#define QDIO_SBAL_SIZE			256
+
+#define QDIO_QETH_QFMT			0
+#define QDIO_ZFCP_QFMT			1
+#define QDIO_IQDIO_QFMT			2
+
+/**
+ * struct qdesfmt0 - queue descriptor, format 0
+ * @sliba: storage list information block address
+ * @sla: storage list address
+ * @slsba: storage list state block address
+ * @akey: access key for DLIB
+ * @bkey: access key for SL
+ * @ckey: access key for SBALs
+ * @dkey: access key for SLSB
+ */
+struct qdesfmt0 {
+	u64 sliba;
+	u64 sla;
+	u64 slsba;
+	u32	 : 32;
+	u32 akey : 4;
+	u32 bkey : 4;
+	u32 ckey : 4;
+	u32 dkey : 4;
+	u32	 : 16;
+} __attribute__ ((packed));
+
+/**
+ * struct qdr - queue description record (QDR)
+ * @qfmt: queue format
+ * @pfmt: implementation dependent parameter format
+ * @ac: adapter characteristics
+ * @iqdcnt: input queue descriptor count
+ * @oqdcnt: output queue descriptor count
+ * @iqdsz: inpout queue descriptor size
+ * @oqdsz: output queue descriptor size
+ * @qiba: queue information block address
+ * @qkey: queue information block key
+ * @qdf0: queue descriptions
+ */
+struct qdr {
+	u32 qfmt   : 8;
+	u32 pfmt   : 8;
+	u32	   : 8;
+	u32 ac	   : 8;
+	u32	   : 8;
+	u32 iqdcnt : 8;
+	u32	   : 8;
+	u32 oqdcnt : 8;
+	u32	   : 8;
+	u32 iqdsz  : 8;
+	u32	   : 8;
+	u32 oqdsz  : 8;
+	/* private: */
+	u32 res[9];
+	/* public: */
+	u64 qiba;
+	u32	   : 32;
+	u32 qkey   : 4;
+	u32	   : 28;
+	struct qdesfmt0 qdf0[126];
+} __attribute__ ((packed, aligned(4096)));
+
+#define QIB_AC_OUTBOUND_PCI_SUPPORTED	0x40
+#define QIB_RFLAGS_ENABLE_QEBSM		0x80
+
+/**
+ * struct qib - queue information block (QIB)
+ * @qfmt: queue format
+ * @pfmt: implementation dependent parameter format
+ * @rflags: QEBSM
+ * @ac: adapter characteristics
+ * @isliba: absolute address of first input SLIB
+ * @osliba: absolute address of first output SLIB
+ * @ebcnam: adapter identifier in EBCDIC
+ * @parm: implementation dependent parameters
+ */
+struct qib {
+	u32 qfmt   : 8;
+	u32 pfmt   : 8;
+	u32 rflags : 8;
+	u32 ac	   : 8;
+	u32	   : 32;
+	u64 isliba;
+	u64 osliba;
+	u32	   : 32;
+	u32	   : 32;
+	u8 ebcnam[8];
+	/* private: */
+	u8 res[88];
+	/* public: */
+	u8 parm[QDIO_MAX_BUFFERS_PER_Q];
+} __attribute__ ((packed, aligned(256)));
+
+/**
+ * struct slibe - storage list information block element (SLIBE)
+ * @parms: implementation dependent parameters
+ */
+struct slibe {
+	u64 parms;
+};
+
+/**
+ * struct slib - storage list information block (SLIB)
+ * @nsliba: next SLIB address (if any)
+ * @sla: SL address
+ * @slsba: SLSB address
+ * @slibe: SLIB elements
+ */
+struct slib {
+	u64 nsliba;
+	u64 sla;
+	u64 slsba;
+	/* private: */
+	u8 res[1000];
+	/* public: */
+	struct slibe slibe[QDIO_MAX_BUFFERS_PER_Q];
+} __attribute__ ((packed, aligned(2048)));
+
+/**
+ * struct sbal_flags - storage block address list flags
+ * @last: last entry
+ * @cont: contiguous storage
+ * @frag: fragmentation
+ */
+struct sbal_flags {
+	u8	: 1;
+	u8 last : 1;
+	u8 cont : 1;
+	u8	: 1;
+	u8 frag : 2;
+	u8	: 2;
+} __attribute__ ((packed));
+
+#define SBAL_FLAGS_FIRST_FRAG		0x04000000UL
+#define SBAL_FLAGS_MIDDLE_FRAG		0x08000000UL
+#define SBAL_FLAGS_LAST_FRAG		0x0c000000UL
+#define SBAL_FLAGS_LAST_ENTRY		0x40000000UL
+#define SBAL_FLAGS_CONTIGUOUS		0x20000000UL
+
+#define SBAL_FLAGS0_DATA_CONTINUATION	0x20UL
+
+/* Awesome OpenFCP extensions */
+#define SBAL_FLAGS0_TYPE_STATUS		0x00UL
+#define SBAL_FLAGS0_TYPE_WRITE		0x08UL
+#define SBAL_FLAGS0_TYPE_READ		0x10UL
+#define SBAL_FLAGS0_TYPE_WRITE_READ	0x18UL
+#define SBAL_FLAGS0_MORE_SBALS		0x04UL
+#define SBAL_FLAGS0_COMMAND		0x02UL
+#define SBAL_FLAGS0_LAST_SBAL		0x00UL
+#define SBAL_FLAGS0_ONLY_SBAL		SBAL_FLAGS0_COMMAND
+#define SBAL_FLAGS0_MIDDLE_SBAL		SBAL_FLAGS0_MORE_SBALS
+#define SBAL_FLAGS0_FIRST_SBAL SBAL_FLAGS0_MORE_SBALS | SBAL_FLAGS0_COMMAND
+#define SBAL_FLAGS0_PCI			0x40
+
+/**
+ * struct sbal_sbalf_0 - sbal flags for sbale 0
+ * @pci: PCI indicator
+ * @cont: data continuation
+ * @sbtype: storage-block type (FCP)
+ */
+struct sbal_sbalf_0 {
+	u8	  : 1;
+	u8 pci	  : 1;
+	u8 cont   : 1;
+	u8 sbtype : 2;
+	u8	  : 3;
+} __attribute__ ((packed));
+
+/**
+ * struct sbal_sbalf_1 - sbal flags for sbale 1
+ * @key: storage key
+ */
+struct sbal_sbalf_1 {
+	u8     : 4;
+	u8 key : 4;
+} __attribute__ ((packed));
+
+/**
+ * struct sbal_sbalf_14 - sbal flags for sbale 14
+ * @erridx: error index
+ */
+struct sbal_sbalf_14 {
+	u8	  : 4;
+	u8 erridx : 4;
+} __attribute__ ((packed));
+
+/**
+ * struct sbal_sbalf_15 - sbal flags for sbale 15
+ * @reason: reason for error state
+ */
+struct sbal_sbalf_15 {
+	u8 reason;
+} __attribute__ ((packed));
+
+/**
+ * union sbal_sbalf - storage block address list flags
+ * @i0: sbalf0
+ * @i1: sbalf1
+ * @i14: sbalf14
+ * @i15: sblaf15
+ * @value: raw value
+ */
+union sbal_sbalf {
+	struct sbal_sbalf_0  i0;
+	struct sbal_sbalf_1  i1;
+	struct sbal_sbalf_14 i14;
+	struct sbal_sbalf_15 i15;
+	u8 value;
+};
+
+/**
+ * struct qdio_buffer_element - SBAL entry
+ * @flags: flags
+ * @length: length
+ * @addr: address
+*/
+struct qdio_buffer_element {
+	u32 flags;
+	u32 length;
+#ifdef CONFIG_32BIT
+	/* private: */
+	void *reserved;
+	/* public: */
+#endif
+	void *addr;
+} __attribute__ ((packed, aligned(16)));
+
+/**
+ * struct qdio_buffer - storage block address list (SBAL)
+ * @element: SBAL entries
+ */
+struct qdio_buffer {
+	struct qdio_buffer_element element[QDIO_MAX_ELEMENTS_PER_BUFFER];
+} __attribute__ ((packed, aligned(256)));
+
+/**
+ * struct sl_element - storage list entry
+ * @sbal: absolute SBAL address
+ */
+struct sl_element {
+#ifdef CONFIG_32BIT
+	/* private: */
+	unsigned long reserved;
+	/* public: */
+#endif
+	unsigned long sbal;
+} __attribute__ ((packed));
+
+/**
+ * struct sl - storage list (SL)
+ * @element: SL entries
+ */
+struct sl {
+	struct sl_element element[QDIO_MAX_BUFFERS_PER_Q];
+} __attribute__ ((packed, aligned(1024)));
+
+/**
+ * struct slsb - storage list state block (SLSB)
+ * @val: state per buffer
+ */
+struct slsb {
+	u8 val[QDIO_MAX_BUFFERS_PER_Q];
+} __attribute__ ((packed, aligned(256)));
+
+struct qdio_ssqd_desc {
+	u8 flags;
+	u8:8;
+	u16 sch;
+	u8 qfmt;
+	u8 parm;
+	u8 qdioac1;
+	u8 sch_class;
+	u8 pcnt;
+	u8 icnt;
+	u8:8;
+	u8 ocnt;
+	u8:8;
+	u8 mbccnt;
+	u16 qdioac2;
+	u64 sch_token;
+	u8 mro;
+	u8 mri;
+	u8:8;
+	u8 sbalic;
+	u16:16;
+	u8:8;
+	u8 mmwc;
+} __attribute__ ((packed));
+
+/* params are: ccw_device, qdio_error, queue_number,
+   first element processed, number of elements processed, int_parm */
+typedef void qdio_handler_t(struct ccw_device *, unsigned int, int,
+			    int, int, unsigned long);
+
+/* qdio errors reported to the upper-layer program */
+#define QDIO_ERROR_SIGA_ACCESS_EXCEPTION	0x10
+#define QDIO_ERROR_SIGA_BUSY			0x20
+#define QDIO_ERROR_ACTIVATE_CHECK_CONDITION	0x40
+#define QDIO_ERROR_SLSB_STATE			0x80
+
+/* for qdio_initialize */
+#define QDIO_INBOUND_0COPY_SBALS		0x01
+#define QDIO_OUTBOUND_0COPY_SBALS		0x02
+#define QDIO_USE_OUTBOUND_PCIS			0x04
+
+/* for qdio_cleanup */
+#define QDIO_FLAG_CLEANUP_USING_CLEAR		0x01
+#define QDIO_FLAG_CLEANUP_USING_HALT		0x02
+
+/**
+ * struct qdio_initialize - qdio initalization data
+ * @cdev: associated ccw device
+ * @q_format: queue format
+ * @adapter_name: name for the adapter
+ * @qib_param_field_format: format for qib_parm_field
+ * @qib_param_field: pointer to 128 bytes or NULL, if no param field
+ * @input_slib_elements: pointer to no_input_qs * 128 words of data or NULL
+ * @output_slib_elements: pointer to no_output_qs * 128 words of data or NULL
+ * @no_input_qs: number of input queues
+ * @no_output_qs: number of output queues
+ * @input_handler: handler to be called for input queues
+ * @output_handler: handler to be called for output queues
+ * @int_parm: interruption parameter
+ * @flags: initialization flags
+ * @input_sbal_addr_array:  address of no_input_qs * 128 pointers
+ * @output_sbal_addr_array: address of no_output_qs * 128 pointers
+ */
+struct qdio_initialize {
+	struct ccw_device *cdev;
+	unsigned char q_format;
+	unsigned char adapter_name[8];
+	unsigned int qib_param_field_format;
+	unsigned char *qib_param_field;
+	unsigned long *input_slib_elements;
+	unsigned long *output_slib_elements;
+	unsigned int no_input_qs;
+	unsigned int no_output_qs;
+	qdio_handler_t *input_handler;
+	qdio_handler_t *output_handler;
+	unsigned long int_parm;
+	unsigned long flags;
+	void **input_sbal_addr_array;
+	void **output_sbal_addr_array;
+};
+
+#define QDIO_STATE_INACTIVE		0x00000002 /* after qdio_cleanup */
+#define QDIO_STATE_ESTABLISHED		0x00000004 /* after qdio_establish */
+#define QDIO_STATE_ACTIVE		0x00000008 /* after qdio_activate */
+#define QDIO_STATE_STOPPED		0x00000010 /* after queues went down */
+
+#define QDIO_FLAG_SYNC_INPUT		0x01
+#define QDIO_FLAG_SYNC_OUTPUT		0x02
+#define QDIO_FLAG_PCI_OUT		0x10
+
+extern int qdio_initialize(struct qdio_initialize *init_data);
+extern int qdio_allocate(struct qdio_initialize *init_data);
+extern int qdio_establish(struct qdio_initialize *init_data);
+extern int qdio_activate(struct ccw_device *);
+
+extern int do_QDIO(struct ccw_device*, unsigned int flags,
+		   int q_nr, int qidx, int count);
+extern int qdio_cleanup(struct ccw_device*, int how);
+extern int qdio_shutdown(struct ccw_device*, int how);
+extern int qdio_free(struct ccw_device *);
+extern struct qdio_ssqd_desc *qdio_get_ssqd_desc(struct ccw_device *cdev);
+
+#endif /* __QDIO_H__ */
diff --git a/arch/s390/include/asm/qeth.h b/arch/s390/include/asm/qeth.h
new file mode 100644
index 00000000000..930d378ef75
--- /dev/null
+++ b/arch/s390/include/asm/qeth.h
@@ -0,0 +1,78 @@
+/*
+ * include/asm-s390/qeth.h
+ *
+ * ioctl definitions for qeth driver
+ *
+ * Copyright (C) 2004 IBM Corporation
+ *
+ * Author(s):	Thomas Spatzier <tspat@de.ibm.com>
+ *
+ */
+#ifndef __ASM_S390_QETH_IOCTL_H__
+#define __ASM_S390_QETH_IOCTL_H__
+#include <linux/ioctl.h>
+
+#define SIOC_QETH_ARP_SET_NO_ENTRIES    (SIOCDEVPRIVATE)
+#define SIOC_QETH_ARP_QUERY_INFO        (SIOCDEVPRIVATE + 1)
+#define SIOC_QETH_ARP_ADD_ENTRY         (SIOCDEVPRIVATE + 2)
+#define SIOC_QETH_ARP_REMOVE_ENTRY      (SIOCDEVPRIVATE + 3)
+#define SIOC_QETH_ARP_FLUSH_CACHE       (SIOCDEVPRIVATE + 4)
+#define SIOC_QETH_ADP_SET_SNMP_CONTROL  (SIOCDEVPRIVATE + 5)
+#define SIOC_QETH_GET_CARD_TYPE         (SIOCDEVPRIVATE + 6)
+
+struct qeth_arp_cache_entry {
+	__u8  macaddr[6];
+	__u8  reserved1[2];
+	__u8  ipaddr[16]; /* for both  IPv4 and IPv6 */
+	__u8  reserved2[32];
+} __attribute__ ((packed));
+
+struct qeth_arp_qi_entry7 {
+	__u8 media_specific[32];
+	__u8 macaddr_type;
+	__u8 ipaddr_type;
+	__u8 macaddr[6];
+	__u8 ipaddr[4];
+} __attribute__((packed));
+
+struct qeth_arp_qi_entry7_short {
+	__u8 macaddr_type;
+	__u8 ipaddr_type;
+	__u8 macaddr[6];
+	__u8 ipaddr[4];
+} __attribute__((packed));
+
+struct qeth_arp_qi_entry5 {
+	__u8 media_specific[32];
+	__u8 macaddr_type;
+	__u8 ipaddr_type;
+	__u8 ipaddr[4];
+} __attribute__((packed));
+
+struct qeth_arp_qi_entry5_short {
+	__u8 macaddr_type;
+	__u8 ipaddr_type;
+	__u8 ipaddr[4];
+} __attribute__((packed));
+
+/*
+ * can be set by user if no "media specific information" is wanted
+ * -> saves a lot of space in user space buffer
+ */
+#define QETH_QARP_STRIP_ENTRIES  0x8000
+#define QETH_QARP_REQUEST_MASK   0x00ff
+
+/* data sent to user space as result of query arp ioctl */
+#define QETH_QARP_USER_DATA_SIZE 20000
+#define QETH_QARP_MASK_OFFSET    4
+#define QETH_QARP_ENTRIES_OFFSET 6
+struct qeth_arp_query_user_data {
+	union {
+		__u32 data_len;		/* set by user space program */
+		__u32 no_entries;	/* set by kernel */
+	} u;
+	__u16 mask_bits;
+	char *entries;
+} __attribute__((packed));
+
+#endif /* __ASM_S390_QETH_IOCTL_H__ */
diff --git a/arch/s390/include/asm/reset.h b/arch/s390/include/asm/reset.h
new file mode 100644
index 00000000000..f584f4a5258
--- /dev/null
+++ b/arch/s390/include/asm/reset.h
@@ -0,0 +1,21 @@
+/*
+ *  include/asm-s390/reset.h
+ *
+ *    Copyright IBM Corp. 2006
+ *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
+ */
+
+#ifndef _ASM_S390_RESET_H
+#define _ASM_S390_RESET_H
+
+#include <linux/list.h>
+
+struct reset_call {
+	struct list_head list;
+	void (*fn)(void);
+};
+
+extern void register_reset_call(struct reset_call *reset);
+extern void unregister_reset_call(struct reset_call *reset);
+extern void s390_reset_system(void);
+#endif /* _ASM_S390_RESET_H */
diff --git a/arch/s390/include/asm/resource.h b/arch/s390/include/asm/resource.h
new file mode 100644
index 00000000000..366c01de04f
--- /dev/null
+++ b/arch/s390/include/asm/resource.h
@@ -0,0 +1,15 @@
+/*
+ *  include/asm-s390/resource.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/resources.h"
+ */
+
+#ifndef _S390_RESOURCE_H
+#define _S390_RESOURCE_H
+
+#include <asm-generic/resource.h>
+
+#endif
+
diff --git a/arch/s390/include/asm/rwsem.h b/arch/s390/include/asm/rwsem.h
new file mode 100644
index 00000000000..9d2a1797180
--- /dev/null
+++ b/arch/s390/include/asm/rwsem.h
@@ -0,0 +1,387 @@
+#ifndef _S390_RWSEM_H
+#define _S390_RWSEM_H
+
+/*
+ *  include/asm-s390/rwsem.h
+ *
+ *  S390 version
+ *    Copyright (C) 2002 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Based on asm-alpha/semaphore.h and asm-i386/rwsem.h
+ */
+
+/*
+ *
+ * The MSW of the count is the negated number of active writers and waiting
+ * lockers, and the LSW is the total number of active locks
+ *
+ * The lock count is initialized to 0 (no active and no waiting lockers).
+ *
+ * When a writer subtracts WRITE_BIAS, it'll get 0xffff0001 for the case of an
+ * uncontended lock. This can be determined because XADD returns the old value.
+ * Readers increment by 1 and see a positive value when uncontended, negative
+ * if there are writers (and maybe) readers waiting (in which case it goes to
+ * sleep).
+ *
+ * The value of WAITING_BIAS supports up to 32766 waiting processes. This can
+ * be extended to 65534 by manually checking the whole MSW rather than relying
+ * on the S flag.
+ *
+ * The value of ACTIVE_BIAS supports up to 65535 active processes.
+ *
+ * This should be totally fair - if anything is waiting, a process that wants a
+ * lock will go to the back of the queue. When the currently active lock is
+ * released, if there's a writer at the front of the queue, then that and only
+ * that will be woken up; if there's a bunch of consequtive readers at the
+ * front, then they'll all be woken up, but no other readers will be.
+ */
+
+#ifndef _LINUX_RWSEM_H
+#error "please don't include asm/rwsem.h directly, use linux/rwsem.h instead"
+#endif
+
+#ifdef __KERNEL__
+
+#include <linux/list.h>
+#include <linux/spinlock.h>
+
+struct rwsem_waiter;
+
+extern struct rw_semaphore *rwsem_down_read_failed(struct rw_semaphore *);
+extern struct rw_semaphore *rwsem_down_write_failed(struct rw_semaphore *);
+extern struct rw_semaphore *rwsem_wake(struct rw_semaphore *);
+extern struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *);
+extern struct rw_semaphore *rwsem_downgrade_write(struct rw_semaphore *);
+
+/*
+ * the semaphore definition
+ */
+struct rw_semaphore {
+	signed long		count;
+	spinlock_t		wait_lock;
+	struct list_head	wait_list;
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+	struct lockdep_map	dep_map;
+#endif
+};
+
+#ifndef __s390x__
+#define RWSEM_UNLOCKED_VALUE	0x00000000
+#define RWSEM_ACTIVE_BIAS	0x00000001
+#define RWSEM_ACTIVE_MASK	0x0000ffff
+#define RWSEM_WAITING_BIAS	(-0x00010000)
+#else /* __s390x__ */
+#define RWSEM_UNLOCKED_VALUE	0x0000000000000000L
+#define RWSEM_ACTIVE_BIAS	0x0000000000000001L
+#define RWSEM_ACTIVE_MASK	0x00000000ffffffffL
+#define RWSEM_WAITING_BIAS	(-0x0000000100000000L)
+#endif /* __s390x__ */
+#define RWSEM_ACTIVE_READ_BIAS	RWSEM_ACTIVE_BIAS
+#define RWSEM_ACTIVE_WRITE_BIAS	(RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)
+
+/*
+ * initialisation
+ */
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+# define __RWSEM_DEP_MAP_INIT(lockname) , .dep_map = { .name = #lockname }
+#else
+# define __RWSEM_DEP_MAP_INIT(lockname)
+#endif
+
+#define __RWSEM_INITIALIZER(name) \
+ { RWSEM_UNLOCKED_VALUE, __SPIN_LOCK_UNLOCKED((name).wait.lock), \
+   LIST_HEAD_INIT((name).wait_list) __RWSEM_DEP_MAP_INIT(name) }
+
+#define DECLARE_RWSEM(name) \
+	struct rw_semaphore name = __RWSEM_INITIALIZER(name)
+
+static inline void init_rwsem(struct rw_semaphore *sem)
+{
+	sem->count = RWSEM_UNLOCKED_VALUE;
+	spin_lock_init(&sem->wait_lock);
+	INIT_LIST_HEAD(&sem->wait_list);
+}
+
+extern void __init_rwsem(struct rw_semaphore *sem, const char *name,
+			 struct lock_class_key *key);
+
+#define init_rwsem(sem)				\
+do {						\
+	static struct lock_class_key __key;	\
+						\
+	__init_rwsem((sem), #sem, &__key);	\
+} while (0)
+
+
+/*
+ * lock for reading
+ */
+static inline void __down_read(struct rw_semaphore *sem)
+{
+	signed long old, new;
+
+	asm volatile(
+#ifndef __s390x__
+		"	l	%0,0(%3)\n"
+		"0:	lr	%1,%0\n"
+		"	ahi	%1,%5\n"
+		"	cs	%0,%1,0(%3)\n"
+		"	jl	0b"
+#else /* __s390x__ */
+		"	lg	%0,0(%3)\n"
+		"0:	lgr	%1,%0\n"
+		"	aghi	%1,%5\n"
+		"	csg	%0,%1,0(%3)\n"
+		"	jl	0b"
+#endif /* __s390x__ */
+		: "=&d" (old), "=&d" (new), "=m" (sem->count)
+		: "a" (&sem->count), "m" (sem->count),
+		  "i" (RWSEM_ACTIVE_READ_BIAS) : "cc", "memory");
+	if (old < 0)
+		rwsem_down_read_failed(sem);
+}
+
+/*
+ * trylock for reading -- returns 1 if successful, 0 if contention
+ */
+static inline int __down_read_trylock(struct rw_semaphore *sem)
+{
+	signed long old, new;
+
+	asm volatile(
+#ifndef __s390x__
+		"	l	%0,0(%3)\n"
+		"0:	ltr	%1,%0\n"
+		"	jm	1f\n"
+		"	ahi	%1,%5\n"
+		"	cs	%0,%1,0(%3)\n"
+		"	jl	0b\n"
+		"1:"
+#else /* __s390x__ */
+		"	lg	%0,0(%3)\n"
+		"0:	ltgr	%1,%0\n"
+		"	jm	1f\n"
+		"	aghi	%1,%5\n"
+		"	csg	%0,%1,0(%3)\n"
+		"	jl	0b\n"
+		"1:"
+#endif /* __s390x__ */
+		: "=&d" (old), "=&d" (new), "=m" (sem->count)
+		: "a" (&sem->count), "m" (sem->count),
+		  "i" (RWSEM_ACTIVE_READ_BIAS) : "cc", "memory");
+	return old >= 0 ? 1 : 0;
+}
+
+/*
+ * lock for writing
+ */
+static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
+{
+	signed long old, new, tmp;
+
+	tmp = RWSEM_ACTIVE_WRITE_BIAS;
+	asm volatile(
+#ifndef __s390x__
+		"	l	%0,0(%3)\n"
+		"0:	lr	%1,%0\n"
+		"	a	%1,%5\n"
+		"	cs	%0,%1,0(%3)\n"
+		"	jl	0b"
+#else /* __s390x__ */
+		"	lg	%0,0(%3)\n"
+		"0:	lgr	%1,%0\n"
+		"	ag	%1,%5\n"
+		"	csg	%0,%1,0(%3)\n"
+		"	jl	0b"
+#endif /* __s390x__ */
+		: "=&d" (old), "=&d" (new), "=m" (sem->count)
+		: "a" (&sem->count), "m" (sem->count), "m" (tmp)
+		: "cc", "memory");
+	if (old != 0)
+		rwsem_down_write_failed(sem);
+}
+
+static inline void __down_write(struct rw_semaphore *sem)
+{
+	__down_write_nested(sem, 0);
+}
+
+/*
+ * trylock for writing -- returns 1 if successful, 0 if contention
+ */
+static inline int __down_write_trylock(struct rw_semaphore *sem)
+{
+	signed long old;
+
+	asm volatile(
+#ifndef __s390x__
+		"	l	%0,0(%2)\n"
+		"0:	ltr	%0,%0\n"
+		"	jnz	1f\n"
+		"	cs	%0,%4,0(%2)\n"
+		"	jl	0b\n"
+#else /* __s390x__ */
+		"	lg	%0,0(%2)\n"
+		"0:	ltgr	%0,%0\n"
+		"	jnz	1f\n"
+		"	csg	%0,%4,0(%2)\n"
+		"	jl	0b\n"
+#endif /* __s390x__ */
+		"1:"
+		: "=&d" (old), "=m" (sem->count)
+		: "a" (&sem->count), "m" (sem->count),
+		  "d" (RWSEM_ACTIVE_WRITE_BIAS) : "cc", "memory");
+	return (old == RWSEM_UNLOCKED_VALUE) ? 1 : 0;
+}
+
+/*
+ * unlock after reading
+ */
+static inline void __up_read(struct rw_semaphore *sem)
+{
+	signed long old, new;
+
+	asm volatile(
+#ifndef __s390x__
+		"	l	%0,0(%3)\n"
+		"0:	lr	%1,%0\n"
+		"	ahi	%1,%5\n"
+		"	cs	%0,%1,0(%3)\n"
+		"	jl	0b"
+#else /* __s390x__ */
+		"	lg	%0,0(%3)\n"
+		"0:	lgr	%1,%0\n"
+		"	aghi	%1,%5\n"
+		"	csg	%0,%1,0(%3)\n"
+		"	jl	0b"
+#endif /* __s390x__ */
+		: "=&d" (old), "=&d" (new), "=m" (sem->count)
+		: "a" (&sem->count), "m" (sem->count),
+		  "i" (-RWSEM_ACTIVE_READ_BIAS)
+		: "cc", "memory");
+	if (new < 0)
+		if ((new & RWSEM_ACTIVE_MASK) == 0)
+			rwsem_wake(sem);
+}
+
+/*
+ * unlock after writing
+ */
+static inline void __up_write(struct rw_semaphore *sem)
+{
+	signed long old, new, tmp;
+
+	tmp = -RWSEM_ACTIVE_WRITE_BIAS;
+	asm volatile(
+#ifndef __s390x__
+		"	l	%0,0(%3)\n"
+		"0:	lr	%1,%0\n"
+		"	a	%1,%5\n"
+		"	cs	%0,%1,0(%3)\n"
+		"	jl	0b"
+#else /* __s390x__ */
+		"	lg	%0,0(%3)\n"
+		"0:	lgr	%1,%0\n"
+		"	ag	%1,%5\n"
+		"	csg	%0,%1,0(%3)\n"
+		"	jl	0b"
+#endif /* __s390x__ */
+		: "=&d" (old), "=&d" (new), "=m" (sem->count)
+		: "a" (&sem->count), "m" (sem->count), "m" (tmp)
+		: "cc", "memory");
+	if (new < 0)
+		if ((new & RWSEM_ACTIVE_MASK) == 0)
+			rwsem_wake(sem);
+}
+
+/*
+ * downgrade write lock to read lock
+ */
+static inline void __downgrade_write(struct rw_semaphore *sem)
+{
+	signed long old, new, tmp;
+
+	tmp = -RWSEM_WAITING_BIAS;
+	asm volatile(
+#ifndef __s390x__
+		"	l	%0,0(%3)\n"
+		"0:	lr	%1,%0\n"
+		"	a	%1,%5\n"
+		"	cs	%0,%1,0(%3)\n"
+		"	jl	0b"
+#else /* __s390x__ */
+		"	lg	%0,0(%3)\n"
+		"0:	lgr	%1,%0\n"
+		"	ag	%1,%5\n"
+		"	csg	%0,%1,0(%3)\n"
+		"	jl	0b"
+#endif /* __s390x__ */
+		: "=&d" (old), "=&d" (new), "=m" (sem->count)
+		: "a" (&sem->count), "m" (sem->count), "m" (tmp)
+		: "cc", "memory");
+	if (new > 1)
+		rwsem_downgrade_wake(sem);
+}
+
+/*
+ * implement atomic add functionality
+ */
+static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
+{
+	signed long old, new;
+
+	asm volatile(
+#ifndef __s390x__
+		"	l	%0,0(%3)\n"
+		"0:	lr	%1,%0\n"
+		"	ar	%1,%5\n"
+		"	cs	%0,%1,0(%3)\n"
+		"	jl	0b"
+#else /* __s390x__ */
+		"	lg	%0,0(%3)\n"
+		"0:	lgr	%1,%0\n"
+		"	agr	%1,%5\n"
+		"	csg	%0,%1,0(%3)\n"
+		"	jl	0b"
+#endif /* __s390x__ */
+		: "=&d" (old), "=&d" (new), "=m" (sem->count)
+		: "a" (&sem->count), "m" (sem->count), "d" (delta)
+		: "cc", "memory");
+}
+
+/*
+ * implement exchange and add functionality
+ */
+static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
+{
+	signed long old, new;
+
+	asm volatile(
+#ifndef __s390x__
+		"	l	%0,0(%3)\n"
+		"0:	lr	%1,%0\n"
+		"	ar	%1,%5\n"
+		"	cs	%0,%1,0(%3)\n"
+		"	jl	0b"
+#else /* __s390x__ */
+		"	lg	%0,0(%3)\n"
+		"0:	lgr	%1,%0\n"
+		"	agr	%1,%5\n"
+		"	csg	%0,%1,0(%3)\n"
+		"	jl	0b"
+#endif /* __s390x__ */
+		: "=&d" (old), "=&d" (new), "=m" (sem->count)
+		: "a" (&sem->count), "m" (sem->count), "d" (delta)
+		: "cc", "memory");
+	return new;
+}
+
+static inline int rwsem_is_locked(struct rw_semaphore *sem)
+{
+	return (sem->count != 0);
+}
+
+#endif /* __KERNEL__ */
+#endif /* _S390_RWSEM_H */
diff --git a/arch/s390/include/asm/s390_ext.h b/arch/s390/include/asm/s390_ext.h
new file mode 100644
index 00000000000..2afc060266a
--- /dev/null
+++ b/arch/s390/include/asm/s390_ext.h
@@ -0,0 +1,32 @@
+#ifndef _S390_EXTINT_H
+#define _S390_EXTINT_H
+
+/*
+ *  include/asm-s390/s390_ext.h
+ *
+ *  S390 version
+ *    Copyright IBM Corp. 1999,2007
+ *    Author(s): Holger Smolinski (Holger.Smolinski@de.ibm.com),
+ *               Martin Schwidefsky (schwidefsky@de.ibm.com)
+ */
+
+#include <linux/types.h>
+
+typedef void (*ext_int_handler_t)(__u16 code);
+
+typedef struct ext_int_info_t {
+	struct ext_int_info_t *next;
+	ext_int_handler_t handler;
+	__u16 code;
+} ext_int_info_t;
+
+extern ext_int_info_t *ext_int_hash[];
+
+int register_external_interrupt(__u16 code, ext_int_handler_t handler);
+int register_early_external_interrupt(__u16 code, ext_int_handler_t handler,
+				      ext_int_info_t *info);
+int unregister_external_interrupt(__u16 code, ext_int_handler_t handler);
+int unregister_early_external_interrupt(__u16 code, ext_int_handler_t handler,
+					ext_int_info_t *info);
+
+#endif
diff --git a/arch/s390/include/asm/s390_rdev.h b/arch/s390/include/asm/s390_rdev.h
new file mode 100644
index 00000000000..6fa20442a48
--- /dev/null
+++ b/arch/s390/include/asm/s390_rdev.h
@@ -0,0 +1,15 @@
+/*
+ *  include/asm-s390/ccwdev.h
+ *
+ *    Copyright (C) 2002,2005 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
+ *               Carsten Otte  <cotte@de.ibm.com>
+ *
+ *  Interface for s390 root device
+ */
+
+#ifndef _S390_RDEV_H_
+#define _S390_RDEV_H_
+extern struct device *s390_root_dev_register(const char *);
+extern void s390_root_dev_unregister(struct device *);
+#endif /* _S390_RDEV_H_ */
diff --git a/arch/s390/include/asm/scatterlist.h b/arch/s390/include/asm/scatterlist.h
new file mode 100644
index 00000000000..29ec8e28c8d
--- /dev/null
+++ b/arch/s390/include/asm/scatterlist.h
@@ -0,0 +1,19 @@
+#ifndef _ASMS390_SCATTERLIST_H
+#define _ASMS390_SCATTERLIST_H
+
+struct scatterlist {
+#ifdef CONFIG_DEBUG_SG
+    unsigned long sg_magic;
+#endif
+    unsigned long page_link;
+    unsigned int offset;
+    unsigned int length;
+};
+
+#ifdef __s390x__
+#define ISA_DMA_THRESHOLD (0xffffffffffffffffUL)
+#else
+#define ISA_DMA_THRESHOLD (0xffffffffUL)
+#endif
+
+#endif /* _ASMS390X_SCATTERLIST_H */
diff --git a/arch/s390/include/asm/schid.h b/arch/s390/include/asm/schid.h
new file mode 100644
index 00000000000..825503cf3dc
--- /dev/null
+++ b/arch/s390/include/asm/schid.h
@@ -0,0 +1,32 @@
+#ifndef ASM_SCHID_H
+#define ASM_SCHID_H
+
+struct subchannel_id {
+	__u32 cssid : 8;
+	__u32 : 4;
+	__u32 m : 1;
+	__u32 ssid : 2;
+	__u32 one : 1;
+	__u32 sch_no : 16;
+} __attribute__ ((packed, aligned(4)));
+
+#ifdef __KERNEL__
+#include <linux/string.h>
+
+/* Helper function for sane state of pre-allocated subchannel_id. */
+static inline void
+init_subchannel_id(struct subchannel_id *schid)
+{
+	memset(schid, 0, sizeof(struct subchannel_id));
+	schid->one = 1;
+}
+
+static inline int
+schid_equal(struct subchannel_id *schid1, struct subchannel_id *schid2)
+{
+	return !memcmp(schid1, schid2, sizeof(struct subchannel_id));
+}
+
+#endif /* __KERNEL__ */
+
+#endif /* ASM_SCHID_H */
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
new file mode 100644
index 00000000000..fed7bee650a
--- /dev/null
+++ b/arch/s390/include/asm/sclp.h
@@ -0,0 +1,58 @@
+/*
+ *  include/asm-s390/sclp.h
+ *
+ *    Copyright IBM Corp. 2007
+ *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
+ */
+
+#ifndef _ASM_S390_SCLP_H
+#define _ASM_S390_SCLP_H
+
+#include <linux/types.h>
+#include <asm/chpid.h>
+
+#define SCLP_CHP_INFO_MASK_SIZE		32
+
+struct sclp_chp_info {
+	u8 recognized[SCLP_CHP_INFO_MASK_SIZE];
+	u8 standby[SCLP_CHP_INFO_MASK_SIZE];
+	u8 configured[SCLP_CHP_INFO_MASK_SIZE];
+};
+
+#define LOADPARM_LEN 8
+
+struct sclp_ipl_info {
+	int is_valid;
+	int has_dump;
+	char loadparm[LOADPARM_LEN];
+};
+
+struct sclp_cpu_entry {
+	u8 address;
+	u8 reserved0[13];
+	u8 type;
+	u8 reserved1;
+} __attribute__((packed));
+
+struct sclp_cpu_info {
+	unsigned int configured;
+	unsigned int standby;
+	unsigned int combined;
+	int has_cpu_type;
+	struct sclp_cpu_entry cpu[255];
+};
+
+int sclp_get_cpu_info(struct sclp_cpu_info *info);
+int sclp_cpu_configure(u8 cpu);
+int sclp_cpu_deconfigure(u8 cpu);
+void sclp_facilities_detect(void);
+unsigned long long sclp_get_rnmax(void);
+unsigned long long sclp_get_rzm(void);
+int sclp_sdias_blk_count(void);
+int sclp_sdias_copy(void *dest, int blk_num, int nr_blks);
+int sclp_chp_configure(struct chp_id chpid);
+int sclp_chp_deconfigure(struct chp_id chpid);
+int sclp_chp_read_info(struct sclp_chp_info *info);
+void sclp_get_ipl_info(struct sclp_ipl_info *info);
+
+#endif /* _ASM_S390_SCLP_H */
diff --git a/arch/s390/include/asm/sections.h b/arch/s390/include/asm/sections.h
new file mode 100644
index 00000000000..fbd9116eb17
--- /dev/null
+++ b/arch/s390/include/asm/sections.h
@@ -0,0 +1,8 @@
+#ifndef _S390_SECTIONS_H
+#define _S390_SECTIONS_H
+
+#include <asm-generic/sections.h>
+
+extern char _eshared[], _ehead[];
+
+#endif
diff --git a/arch/s390/include/asm/segment.h b/arch/s390/include/asm/segment.h
new file mode 100644
index 00000000000..8bfce3475b1
--- /dev/null
+++ b/arch/s390/include/asm/segment.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_SEGMENT_H
+#define _ASM_SEGMENT_H
+
+#endif
diff --git a/arch/s390/include/asm/sembuf.h b/arch/s390/include/asm/sembuf.h
new file mode 100644
index 00000000000..32626b0cac4
--- /dev/null
+++ b/arch/s390/include/asm/sembuf.h
@@ -0,0 +1,29 @@
+#ifndef _S390_SEMBUF_H
+#define _S390_SEMBUF_H
+
+/* 
+ * The semid64_ds structure for S/390 architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 64-bit time_t to solve y2038 problem (for !__s390x__)
+ * - 2 miscellaneous 32-bit values
+ */
+
+struct semid64_ds {
+	struct ipc64_perm sem_perm;		/* permissions .. see ipc.h */
+	__kernel_time_t	sem_otime;		/* last semop time */
+#ifndef __s390x__
+	unsigned long	__unused1;
+#endif /* ! __s390x__ */
+	__kernel_time_t	sem_ctime;		/* last change time */
+#ifndef __s390x__
+	unsigned long	__unused2;
+#endif /* ! __s390x__ */
+	unsigned long	sem_nsems;		/* no. of semaphores in array */
+	unsigned long	__unused3;
+	unsigned long	__unused4;
+};
+
+#endif /* _S390_SEMBUF_H */
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
new file mode 100644
index 00000000000..2bd9faeb391
--- /dev/null
+++ b/arch/s390/include/asm/setup.h
@@ -0,0 +1,140 @@
+/*
+ *  include/asm-s390/setup.h
+ *
+ *  S390 version
+ *    Copyright IBM Corp. 1999,2006
+ */
+
+#ifndef _ASM_S390_SETUP_H
+#define _ASM_S390_SETUP_H
+
+#define COMMAND_LINE_SIZE	1024
+
+#define ARCH_COMMAND_LINE_SIZE	896
+
+#ifdef __KERNEL__
+
+#include <asm/types.h>
+
+#define PARMAREA		0x10400
+#define MEMORY_CHUNKS		256
+
+#ifndef __ASSEMBLY__
+
+#ifndef __s390x__
+#define IPL_DEVICE        (*(unsigned long *)  (0x10404))
+#define INITRD_START      (*(unsigned long *)  (0x1040C))
+#define INITRD_SIZE       (*(unsigned long *)  (0x10414))
+#else /* __s390x__ */
+#define IPL_DEVICE        (*(unsigned long *)  (0x10400))
+#define INITRD_START      (*(unsigned long *)  (0x10408))
+#define INITRD_SIZE       (*(unsigned long *)  (0x10410))
+#endif /* __s390x__ */
+#define COMMAND_LINE      ((char *)            (0x10480))
+
+#define CHUNK_READ_WRITE 0
+#define CHUNK_READ_ONLY  1
+
+struct mem_chunk {
+	unsigned long addr;
+	unsigned long size;
+	int type;
+};
+
+extern struct mem_chunk memory_chunk[];
+extern unsigned long real_memory_size;
+
+void detect_memory_layout(struct mem_chunk chunk[]);
+
+#ifdef CONFIG_S390_SWITCH_AMODE
+extern unsigned int switch_amode;
+#else
+#define switch_amode	(0)
+#endif
+
+#ifdef CONFIG_S390_EXEC_PROTECT
+extern unsigned int s390_noexec;
+#else
+#define s390_noexec	(0)
+#endif
+
+/*
+ * Machine features detected in head.S
+ */
+extern unsigned long machine_flags;
+
+#define MACHINE_FLAG_VM		(1UL << 0)
+#define MACHINE_FLAG_IEEE	(1UL << 1)
+#define MACHINE_FLAG_CSP	(1UL << 3)
+#define MACHINE_FLAG_MVPG	(1UL << 4)
+#define MACHINE_FLAG_DIAG44	(1UL << 5)
+#define MACHINE_FLAG_IDTE	(1UL << 6)
+#define MACHINE_FLAG_DIAG9C	(1UL << 7)
+#define MACHINE_FLAG_MVCOS	(1UL << 8)
+#define MACHINE_FLAG_KVM	(1UL << 9)
+#define MACHINE_FLAG_HPAGE	(1UL << 10)
+#define MACHINE_FLAG_PFMF	(1UL << 11)
+
+#define MACHINE_IS_VM		(machine_flags & MACHINE_FLAG_VM)
+#define MACHINE_IS_KVM		(machine_flags & MACHINE_FLAG_KVM)
+#define MACHINE_HAS_DIAG9C	(machine_flags & MACHINE_FLAG_DIAG9C)
+
+#ifndef __s390x__
+#define MACHINE_HAS_IEEE	(machine_flags & MACHINE_FLAG_IEEE)
+#define MACHINE_HAS_CSP		(machine_flags & MACHINE_FLAG_CSP)
+#define MACHINE_HAS_IDTE	(0)
+#define MACHINE_HAS_DIAG44	(1)
+#define MACHINE_HAS_MVPG	(machine_flags & MACHINE_FLAG_MVPG)
+#define MACHINE_HAS_MVCOS	(0)
+#define MACHINE_HAS_HPAGE	(0)
+#define MACHINE_HAS_PFMF	(0)
+#else /* __s390x__ */
+#define MACHINE_HAS_IEEE	(1)
+#define MACHINE_HAS_CSP		(1)
+#define MACHINE_HAS_IDTE	(machine_flags & MACHINE_FLAG_IDTE)
+#define MACHINE_HAS_DIAG44	(machine_flags & MACHINE_FLAG_DIAG44)
+#define MACHINE_HAS_MVPG	(1)
+#define MACHINE_HAS_MVCOS	(machine_flags & MACHINE_FLAG_MVCOS)
+#define MACHINE_HAS_HPAGE	(machine_flags & MACHINE_FLAG_HPAGE)
+#define MACHINE_HAS_PFMF	(machine_flags & MACHINE_FLAG_PFMF)
+#endif /* __s390x__ */
+
+#define ZFCPDUMP_HSA_SIZE	(32UL<<20)
+
+/*
+ * Console mode. Override with conmode=
+ */
+extern unsigned int console_mode;
+extern unsigned int console_devno;
+extern unsigned int console_irq;
+
+extern char vmhalt_cmd[];
+extern char vmpoff_cmd[];
+
+#define CONSOLE_IS_UNDEFINED	(console_mode == 0)
+#define CONSOLE_IS_SCLP		(console_mode == 1)
+#define CONSOLE_IS_3215		(console_mode == 2)
+#define CONSOLE_IS_3270		(console_mode == 3)
+#define SET_CONSOLE_SCLP	do { console_mode = 1; } while (0)
+#define SET_CONSOLE_3215	do { console_mode = 2; } while (0)
+#define SET_CONSOLE_3270	do { console_mode = 3; } while (0)
+
+#define NSS_NAME_SIZE	8
+extern char kernel_nss_name[];
+
+#else /* __ASSEMBLY__ */
+
+#ifndef __s390x__
+#define IPL_DEVICE        0x10404
+#define INITRD_START      0x1040C
+#define INITRD_SIZE       0x10414
+#else /* __s390x__ */
+#define IPL_DEVICE        0x10400
+#define INITRD_START      0x10408
+#define INITRD_SIZE       0x10410
+#endif /* __s390x__ */
+#define COMMAND_LINE      0x10480
+
+#endif /* __ASSEMBLY__ */
+#endif /* __KERNEL__ */
+#endif /* _ASM_S390_SETUP_H */
diff --git a/arch/s390/include/asm/sfp-machine.h b/arch/s390/include/asm/sfp-machine.h
new file mode 100644
index 00000000000..4e16aede4b0
--- /dev/null
+++ b/arch/s390/include/asm/sfp-machine.h
@@ -0,0 +1,142 @@
+/* Machine-dependent software floating-point definitions.
+   S/390 kernel version.
+   Copyright (C) 1997,1998,1999 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com),
+		  Jakub Jelinek (jj@ultra.linux.cz),
+		  David S. Miller (davem@redhat.com) and
+		  Peter Maydell (pmaydell@chiark.greenend.org.uk).
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If
+   not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef _SFP_MACHINE_H
+#define _SFP_MACHINE_H
+   
+
+#define _FP_W_TYPE_SIZE		32
+#define _FP_W_TYPE		unsigned int
+#define _FP_WS_TYPE		signed int
+#define _FP_I_TYPE		int
+
+#define _FP_MUL_MEAT_S(R,X,Y)					\
+  _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_D(R,X,Y)					\
+  _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_Q(R,X,Y)					\
+  _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
+
+#define _FP_DIV_MEAT_S(R,X,Y)	_FP_DIV_MEAT_1_udiv(S,R,X,Y)
+#define _FP_DIV_MEAT_D(R,X,Y)	_FP_DIV_MEAT_2_udiv(D,R,X,Y)
+#define _FP_DIV_MEAT_Q(R,X,Y)	_FP_DIV_MEAT_4_udiv(Q,R,X,Y)
+
+#define _FP_NANFRAC_S		((_FP_QNANBIT_S << 1) - 1)
+#define _FP_NANFRAC_D		((_FP_QNANBIT_D << 1) - 1), -1
+#define _FP_NANFRAC_Q		((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
+#define _FP_NANSIGN_S		0
+#define _FP_NANSIGN_D		0
+#define _FP_NANSIGN_Q		0
+
+#define _FP_KEEPNANFRACP 1
+
+/*
+ * If one NaN is signaling and the other is not,
+ * we choose that one, otherwise we choose X.
+ */
+#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)                      \
+  do {                                                          \
+    if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)          \
+        && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs))     \
+      {                                                         \
+        R##_s = Y##_s;                                          \
+        _FP_FRAC_COPY_##wc(R,Y);                                \
+      }                                                         \
+    else                                                        \
+      {                                                         \
+        R##_s = X##_s;                                          \
+        _FP_FRAC_COPY_##wc(R,X);                                \
+      }                                                         \
+    R##_c = FP_CLS_NAN;                                         \
+  } while (0)
+
+/* Some assembly to speed things up. */
+#define __FP_FRAC_ADD_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) ({		\
+	unsigned int __r2 = (x2) + (y2);			\
+	unsigned int __r1 = (x1);				\
+	unsigned int __r0 = (x0);				\
+	asm volatile(						\
+		"	alr	%2,%3\n"			\
+		"	brc	12,0f\n"			\
+		"	lhi	0,1\n"				\
+		"	alr	%1,0\n"				\
+		"	brc	12,0f\n"			\
+		"	alr	%0,0\n"				\
+		"0:"						\
+		: "+&d" (__r2), "+&d" (__r1), "+&d" (__r0)	\
+		: "d" (y0), "i" (1) : "cc", "0" );		\
+	asm volatile(						\
+		"	alr	%1,%2\n"			\
+		"	brc	12,0f\n"			\
+		"	ahi	%0,1\n"				\
+		"0:"						\
+		: "+&d" (__r2), "+&d" (__r1)			\
+		: "d" (y1) : "cc");				\
+	(r2) = __r2;						\
+	(r1) = __r1;						\
+	(r0) = __r0;						\
+})
+
+#define __FP_FRAC_SUB_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) ({		\
+	unsigned int __r2 = (x2) - (y2);			\
+	unsigned int __r1 = (x1);				\
+	unsigned int __r0 = (x0);				\
+	asm volatile(						\
+		"	slr   %2,%3\n"				\
+		"	brc	3,0f\n"				\
+		"	lhi	0,1\n"				\
+		"	slr	%1,0\n"				\
+		"	brc	3,0f\n"				\
+		"	slr	%0,0\n"				\
+		"0:"						\
+		: "+&d" (__r2), "+&d" (__r1), "+&d" (__r0)	\
+		: "d" (y0) : "cc", "0");			\
+	asm volatile(						\
+		"	slr	%1,%2\n"			\
+		"	brc	3,0f\n"				\
+		"	ahi	%0,-1\n"			\
+		"0:"						\
+		: "+&d" (__r2), "+&d" (__r1)			\
+		: "d" (y1) : "cc");				\
+	(r2) = __r2;						\
+	(r1) = __r1;						\
+	(r0) = __r0;						\
+})
+
+#define __FP_FRAC_DEC_3(x2,x1,x0,y2,y1,y0) __FP_FRAC_SUB_3(x2,x1,x0,x2,x1,x0,y2,y1,y0)
+
+/* Obtain the current rounding mode. */
+#define FP_ROUNDMODE	mode
+
+/* Exception flags. */
+#define FP_EX_INVALID		0x800000
+#define FP_EX_DIVZERO		0x400000
+#define FP_EX_OVERFLOW		0x200000
+#define FP_EX_UNDERFLOW		0x100000
+#define FP_EX_INEXACT		0x080000
+
+/* We write the results always */
+#define FP_INHIBIT_RESULTS 0
+
+#endif
diff --git a/arch/s390/include/asm/sfp-util.h b/arch/s390/include/asm/sfp-util.h
new file mode 100644
index 00000000000..0addc6466d9
--- /dev/null
+++ b/arch/s390/include/asm/sfp-util.h
@@ -0,0 +1,77 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <asm/byteorder.h>
+
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) ({		\
+	unsigned int __sh = (ah);			\
+	unsigned int __sl = (al);			\
+	asm volatile(					\
+		"	alr	%1,%3\n"		\
+		"	brc	12,0f\n"		\
+		"	ahi	%0,1\n"			\
+		"0:	alr  %0,%2"			\
+		: "+&d" (__sh), "+d" (__sl)		\
+		: "d" (bh), "d" (bl) : "cc");		\
+	(sh) = __sh;					\
+	(sl) = __sl;					\
+})
+
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) ({		\
+	unsigned int __sh = (ah);			\
+	unsigned int __sl = (al);			\
+	asm volatile(					\
+		"	slr	%1,%3\n"		\
+		"	brc	3,0f\n"			\
+		"	ahi	%0,-1\n"		\
+		"0:	slr	%0,%2"			\
+		: "+&d" (__sh), "+d" (__sl)		\
+		: "d" (bh), "d" (bl) : "cc");		\
+	(sh) = __sh;					\
+	(sl) = __sl;					\
+})
+
+/* a umul b = a mul b + (a>=2<<31) ? b<<32:0 + (b>=2<<31) ? a<<32:0 */
+#define umul_ppmm(wh, wl, u, v) ({			\
+	unsigned int __wh = u;				\
+	unsigned int __wl = v;				\
+	asm volatile(					\
+		"	ltr	1,%0\n"			\
+		"	mr	0,%1\n"			\
+		"	jnm	0f\n"				\
+		"	alr	0,%1\n"			\
+		"0:	ltr	%1,%1\n"			\
+		"	jnm	1f\n"				\
+		"	alr	0,%0\n"			\
+		"1:	lr	%0,0\n"			\
+		"	lr	%1,1\n"			\
+		: "+d" (__wh), "+d" (__wl)		\
+		: : "0", "1", "cc");			\
+	wh = __wh;					\
+	wl = __wl;					\
+})
+
+#ifdef __s390x__
+#define udiv_qrnnd(q, r, n1, n0, d)			\
+  do { unsigned long __n;				\
+       unsigned int __r, __d;				\
+    __n = ((unsigned long)(n1) << 32) + n0;		\
+    __d = (d);						\
+    (q) = __n / __d;					\
+    (r) = __n % __d;					\
+  } while (0)
+#else
+#define udiv_qrnnd(q, r, n1, n0, d)			\
+  do { unsigned int __r;				\
+    (q) = __udiv_qrnnd (&__r, (n1), (n0), (d));		\
+    (r) = __r;						\
+  } while (0)
+extern unsigned long __udiv_qrnnd (unsigned int *, unsigned int,
+				   unsigned int , unsigned int);
+#endif
+
+#define UDIV_NEEDS_NORMALIZATION 0
+
+#define abort() return 0
+
+#define __BYTE_ORDER __BIG_ENDIAN
diff --git a/arch/s390/include/asm/shmbuf.h b/arch/s390/include/asm/shmbuf.h
new file mode 100644
index 00000000000..eed2e280ce3
--- /dev/null
+++ b/arch/s390/include/asm/shmbuf.h
@@ -0,0 +1,48 @@
+#ifndef _S390_SHMBUF_H
+#define _S390_SHMBUF_H
+
+/* 
+ * The shmid64_ds structure for S/390 architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 64-bit time_t to solve y2038 problem (for !__s390x__)
+ * - 2 miscellaneous 32-bit values
+ */
+
+struct shmid64_ds {
+	struct ipc64_perm	shm_perm;	/* operation perms */
+	size_t			shm_segsz;	/* size of segment (bytes) */
+	__kernel_time_t		shm_atime;	/* last attach time */
+#ifndef __s390x__
+	unsigned long		__unused1;
+#endif /* ! __s390x__ */
+	__kernel_time_t		shm_dtime;	/* last detach time */
+#ifndef __s390x__
+	unsigned long		__unused2;
+#endif /* ! __s390x__ */
+	__kernel_time_t		shm_ctime;	/* last change time */
+#ifndef __s390x__
+	unsigned long		__unused3;
+#endif /* ! __s390x__ */
+	__kernel_pid_t		shm_cpid;	/* pid of creator */
+	__kernel_pid_t		shm_lpid;	/* pid of last operator */
+	unsigned long		shm_nattch;	/* no. of current attaches */
+	unsigned long		__unused4;
+	unsigned long		__unused5;
+};
+
+struct shminfo64 {
+	unsigned long	shmmax;
+	unsigned long	shmmin;
+	unsigned long	shmmni;
+	unsigned long	shmseg;
+	unsigned long	shmall;
+	unsigned long	__unused1;
+	unsigned long	__unused2;
+	unsigned long	__unused3;
+	unsigned long	__unused4;
+};
+
+#endif /* _S390_SHMBUF_H */
diff --git a/arch/s390/include/asm/shmparam.h b/arch/s390/include/asm/shmparam.h
new file mode 100644
index 00000000000..c2e0c0508e7
--- /dev/null
+++ b/arch/s390/include/asm/shmparam.h
@@ -0,0 +1,13 @@
+/*
+ *  include/asm-s390/shmparam.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/shmparam.h"
+ */
+#ifndef _ASM_S390_SHMPARAM_H
+#define _ASM_S390_SHMPARAM_H
+
+#define SHMLBA PAGE_SIZE                 /* attach addr a multiple of this */
+
+#endif /* _ASM_S390_SHMPARAM_H */
diff --git a/arch/s390/include/asm/sigcontext.h b/arch/s390/include/asm/sigcontext.h
new file mode 100644
index 00000000000..aeb6e0b1332
--- /dev/null
+++ b/arch/s390/include/asm/sigcontext.h
@@ -0,0 +1,71 @@
+/*
+ *  include/asm-s390/sigcontext.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ */
+
+#ifndef _ASM_S390_SIGCONTEXT_H
+#define _ASM_S390_SIGCONTEXT_H
+
+#include <linux/compiler.h>
+
+#define __NUM_GPRS 16
+#define __NUM_FPRS 16
+#define __NUM_ACRS 16
+
+#ifndef __s390x__
+
+/* Has to be at least _NSIG_WORDS from asm/signal.h */
+#define _SIGCONTEXT_NSIG	64
+#define _SIGCONTEXT_NSIG_BPW	32
+/* Size of stack frame allocated when calling signal handler. */
+#define __SIGNAL_FRAMESIZE	96
+
+#else /* __s390x__ */
+
+/* Has to be at least _NSIG_WORDS from asm/signal.h */
+#define _SIGCONTEXT_NSIG	64
+#define _SIGCONTEXT_NSIG_BPW	64 
+/* Size of stack frame allocated when calling signal handler. */
+#define __SIGNAL_FRAMESIZE	160
+
+#endif /* __s390x__ */
+
+#define _SIGCONTEXT_NSIG_WORDS	(_SIGCONTEXT_NSIG / _SIGCONTEXT_NSIG_BPW)
+#define _SIGMASK_COPY_SIZE	(sizeof(unsigned long)*_SIGCONTEXT_NSIG_WORDS)
+
+typedef struct 
+{
+        unsigned long mask;
+        unsigned long addr;
+} __attribute__ ((aligned(8))) _psw_t;
+
+typedef struct
+{
+	_psw_t psw;
+	unsigned long gprs[__NUM_GPRS];
+	unsigned int  acrs[__NUM_ACRS];
+} _s390_regs_common;
+
+typedef struct
+{
+	unsigned int fpc;
+	double   fprs[__NUM_FPRS];
+} _s390_fp_regs;
+
+typedef struct
+{
+	_s390_regs_common regs;
+	_s390_fp_regs     fpregs;
+} _sigregs;
+
+struct sigcontext
+{
+	unsigned long	oldmask[_SIGCONTEXT_NSIG_WORDS];
+	_sigregs        __user *sregs;
+};
+
+
+#endif
+
diff --git a/arch/s390/include/asm/siginfo.h b/arch/s390/include/asm/siginfo.h
new file mode 100644
index 00000000000..e0ff1ab054b
--- /dev/null
+++ b/arch/s390/include/asm/siginfo.h
@@ -0,0 +1,18 @@
+/*
+ *  include/asm-s390/siginfo.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/siginfo.h"
+ */
+
+#ifndef _S390_SIGINFO_H
+#define _S390_SIGINFO_H
+
+#ifdef __s390x__
+#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
+#endif
+
+#include <asm-generic/siginfo.h>
+
+#endif
diff --git a/arch/s390/include/asm/signal.h b/arch/s390/include/asm/signal.h
new file mode 100644
index 00000000000..f6cfddb278c
--- /dev/null
+++ b/arch/s390/include/asm/signal.h
@@ -0,0 +1,172 @@
+/*
+ *  include/asm-s390/signal.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/signal.h"
+ */
+
+#ifndef _ASMS390_SIGNAL_H
+#define _ASMS390_SIGNAL_H
+
+#include <linux/types.h>
+#include <linux/time.h>
+
+/* Avoid too many header ordering problems.  */
+struct siginfo;
+struct pt_regs;
+
+#ifdef __KERNEL__
+/* Most things should be clean enough to redefine this at will, if care
+   is taken to make libc match.  */
+#include <asm/sigcontext.h>
+#define _NSIG           _SIGCONTEXT_NSIG
+#define _NSIG_BPW       _SIGCONTEXT_NSIG_BPW
+#define _NSIG_WORDS     _SIGCONTEXT_NSIG_WORDS
+
+typedef unsigned long old_sigset_t;             /* at least 32 bits */
+
+typedef struct {
+        unsigned long sig[_NSIG_WORDS];
+} sigset_t;
+
+#else
+/* Here we must cater to libcs that poke about in kernel headers.  */
+
+#define NSIG            32
+typedef unsigned long sigset_t;
+
+#endif /* __KERNEL__ */
+
+#define SIGHUP           1
+#define SIGINT           2
+#define SIGQUIT          3
+#define SIGILL           4
+#define SIGTRAP          5
+#define SIGABRT          6
+#define SIGIOT           6
+#define SIGBUS           7
+#define SIGFPE           8
+#define SIGKILL          9
+#define SIGUSR1         10
+#define SIGSEGV         11
+#define SIGUSR2         12
+#define SIGPIPE         13
+#define SIGALRM         14
+#define SIGTERM         15
+#define SIGSTKFLT       16
+#define SIGCHLD         17
+#define SIGCONT         18
+#define SIGSTOP         19
+#define SIGTSTP         20
+#define SIGTTIN         21
+#define SIGTTOU         22
+#define SIGURG          23
+#define SIGXCPU         24
+#define SIGXFSZ         25
+#define SIGVTALRM       26
+#define SIGPROF         27
+#define SIGWINCH        28
+#define SIGIO           29
+#define SIGPOLL         SIGIO
+/*
+#define SIGLOST         29
+*/
+#define SIGPWR          30
+#define SIGSYS		31
+#define SIGUNUSED       31
+
+/* These should not be considered constants from userland.  */
+#define SIGRTMIN        32
+#define SIGRTMAX        _NSIG
+
+/*
+ * SA_FLAGS values:
+ *
+ * SA_ONSTACK indicates that a registered stack_t will be used.
+ * SA_RESTART flag to get restarting signals (which were the default long ago)
+ * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
+ * SA_RESETHAND clears the handler when the signal is delivered.
+ * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
+ * SA_NODEFER prevents the current signal from being masked in the handler.
+ *
+ * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
+ * Unix names RESETHAND and NODEFER respectively.
+ */
+#define SA_NOCLDSTOP    0x00000001
+#define SA_NOCLDWAIT    0x00000002
+#define SA_SIGINFO      0x00000004
+#define SA_ONSTACK      0x08000000
+#define SA_RESTART      0x10000000
+#define SA_NODEFER      0x40000000
+#define SA_RESETHAND    0x80000000
+
+#define SA_NOMASK       SA_NODEFER
+#define SA_ONESHOT      SA_RESETHAND
+
+#define SA_RESTORER     0x04000000
+
+/*
+ * sigaltstack controls
+ */
+#define SS_ONSTACK      1
+#define SS_DISABLE      2
+
+#define MINSIGSTKSZ     2048
+#define SIGSTKSZ        8192
+
+#include <asm-generic/signal.h>
+
+#ifdef __KERNEL__
+struct old_sigaction {
+        __sighandler_t sa_handler;
+        old_sigset_t sa_mask;
+        unsigned long sa_flags;
+        void (*sa_restorer)(void);
+};
+
+struct sigaction {
+        __sighandler_t sa_handler;
+        unsigned long sa_flags;
+        void (*sa_restorer)(void);
+        sigset_t sa_mask;               /* mask last for extensibility */
+};
+
+struct k_sigaction {
+        struct sigaction sa;
+};
+
+#define ptrace_signal_deliver(regs, cookie) do { } while (0)
+
+#else
+/* Here we must cater to libcs that poke about in kernel headers.  */
+
+struct sigaction {
+        union {
+          __sighandler_t _sa_handler;
+          void (*_sa_sigaction)(int, struct siginfo *, void *);
+        } _u;
+#ifndef __s390x__ /* lovely */
+        sigset_t sa_mask;
+        unsigned long sa_flags;
+        void (*sa_restorer)(void);
+#else  /* __s390x__ */
+        unsigned long sa_flags;
+        void (*sa_restorer)(void);
+	sigset_t sa_mask;
+#endif /* __s390x__ */
+};
+
+#define sa_handler      _u._sa_handler
+#define sa_sigaction    _u._sa_sigaction
+
+#endif /* __KERNEL__ */
+
+typedef struct sigaltstack {
+        void __user *ss_sp;
+        int ss_flags;
+        size_t ss_size;
+} stack_t;
+
+
+#endif
diff --git a/arch/s390/include/asm/sigp.h b/arch/s390/include/asm/sigp.h
new file mode 100644
index 00000000000..e16d56f8dfe
--- /dev/null
+++ b/arch/s390/include/asm/sigp.h
@@ -0,0 +1,126 @@
+/*
+ *  include/asm-s390/sigp.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com),
+ *               Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *               Heiko Carstens (heiko.carstens@de.ibm.com)
+ *
+ *  sigp.h by D.J. Barrow (c) IBM 1999
+ *  contains routines / structures for signalling other S/390 processors in an
+ *  SMP configuration.
+ */
+
+#ifndef __SIGP__
+#define __SIGP__
+
+#include <asm/ptrace.h>
+#include <asm/atomic.h>
+
+/* get real cpu address from logical cpu number */
+extern volatile int __cpu_logical_map[];
+
+typedef enum
+{
+	sigp_unassigned=0x0,
+	sigp_sense,
+	sigp_external_call,
+	sigp_emergency_signal,
+	sigp_start,
+	sigp_stop,
+	sigp_restart,
+	sigp_unassigned1,
+	sigp_unassigned2,
+	sigp_stop_and_store_status,
+	sigp_unassigned3,
+	sigp_initial_cpu_reset,
+	sigp_cpu_reset,
+	sigp_set_prefix,
+	sigp_store_status_at_address,
+	sigp_store_extended_status_at_address
+} sigp_order_code;
+
+typedef __u32 sigp_status_word;
+
+typedef enum
+{
+        sigp_order_code_accepted=0,
+	sigp_status_stored,
+	sigp_busy,
+	sigp_not_operational
+} sigp_ccode;
+
+
+/*
+ * Definitions for the external call
+ */
+
+/* 'Bit' signals, asynchronous */
+typedef enum
+{
+	ec_schedule=0,
+	ec_call_function,
+	ec_bit_last
+} ec_bit_sig;
+
+/*
+ * Signal processor
+ */
+static inline sigp_ccode
+signal_processor(__u16 cpu_addr, sigp_order_code order_code)
+{
+	register unsigned long reg1 asm ("1") = 0;
+	sigp_ccode ccode;
+
+	asm volatile(
+		"	sigp	%1,%2,0(%3)\n"
+		"	ipm	%0\n"
+		"	srl	%0,28\n"
+		:	"=d"	(ccode)
+		: "d" (reg1), "d" (__cpu_logical_map[cpu_addr]),
+		  "a" (order_code) : "cc" , "memory");
+	return ccode;
+}
+
+/*
+ * Signal processor with parameter
+ */
+static inline sigp_ccode
+signal_processor_p(__u32 parameter, __u16 cpu_addr, sigp_order_code order_code)
+{
+	register unsigned int reg1 asm ("1") = parameter;
+	sigp_ccode ccode;
+
+	asm volatile(
+		"	sigp	%1,%2,0(%3)\n"
+		"	ipm	%0\n"
+		"	srl	%0,28\n"
+		: "=d" (ccode)
+		: "d" (reg1), "d" (__cpu_logical_map[cpu_addr]),
+		  "a" (order_code) : "cc" , "memory");
+	return ccode;
+}
+
+/*
+ * Signal processor with parameter and return status
+ */
+static inline sigp_ccode
+signal_processor_ps(__u32 *statusptr, __u32 parameter, __u16 cpu_addr,
+		    sigp_order_code order_code)
+{
+	register unsigned int reg1 asm ("1") = parameter;
+	sigp_ccode ccode;
+
+	asm volatile(
+		"	sigp	%1,%2,0(%3)\n"
+		"	ipm	%0\n"
+		"	srl	%0,28\n"
+		: "=d" (ccode), "+d" (reg1)
+		: "d" (__cpu_logical_map[cpu_addr]), "a" (order_code)
+		: "cc" , "memory");
+	*statusptr = reg1;
+	return ccode;
+}
+
+#endif /* __SIGP__ */
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h
new file mode 100644
index 00000000000..ae89cf2478f
--- /dev/null
+++ b/arch/s390/include/asm/smp.h
@@ -0,0 +1,116 @@
+/*
+ *  include/asm-s390/smp.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com),
+ *               Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *               Heiko Carstens (heiko.carstens@de.ibm.com)
+ */
+#ifndef __ASM_SMP_H
+#define __ASM_SMP_H
+
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <linux/bitops.h>
+
+#if defined(__KERNEL__) && defined(CONFIG_SMP) && !defined(__ASSEMBLY__)
+
+#include <asm/lowcore.h>
+#include <asm/sigp.h>
+#include <asm/ptrace.h>
+#include <asm/system.h>
+
+/*
+  s390 specific smp.c headers
+ */
+typedef struct
+{
+	int        intresting;
+	sigp_ccode ccode; 
+	__u32      status;
+	__u16      cpu;
+} sigp_info;
+
+extern void machine_restart_smp(char *);
+extern void machine_halt_smp(void);
+extern void machine_power_off_smp(void);
+
+#define NO_PROC_ID		0xFF		/* No processor magic marker */
+
+/*
+ *	This magic constant controls our willingness to transfer
+ *	a process across CPUs. Such a transfer incurs misses on the L1
+ *	cache, and on a P6 or P5 with multiple L2 caches L2 hits. My
+ *	gut feeling is this will vary by board in value. For a board
+ *	with separate L2 cache it probably depends also on the RSS, and
+ *	for a board with shared L2 cache it ought to decay fast as other
+ *	processes are run.
+ */
+ 
+#define PROC_CHANGE_PENALTY	20		/* Schedule penalty */
+
+#define raw_smp_processor_id()	(S390_lowcore.cpu_data.cpu_nr)
+
+static inline __u16 hard_smp_processor_id(void)
+{
+	return stap();
+}
+
+/*
+ * returns 1 if cpu is in stopped/check stopped state or not operational
+ * returns 0 otherwise
+ */
+static inline int
+smp_cpu_not_running(int cpu)
+{
+	__u32 status;
+
+	switch (signal_processor_ps(&status, 0, cpu, sigp_sense)) {
+	case sigp_order_code_accepted:
+	case sigp_status_stored:
+		/* Check for stopped and check stop state */
+		if (status & 0x50)
+			return 1;
+		break;
+	case sigp_not_operational:
+		return 1;
+	default:
+		break;
+	}
+	return 0;
+}
+
+#define cpu_logical_map(cpu) (cpu)
+
+extern int __cpu_disable (void);
+extern void __cpu_die (unsigned int cpu);
+extern void cpu_die (void) __attribute__ ((noreturn));
+extern int __cpu_up (unsigned int cpu);
+
+extern struct mutex smp_cpu_state_mutex;
+extern int smp_cpu_polarization[];
+
+extern int smp_call_function_mask(cpumask_t mask, void (*func)(void *),
+	void *info, int wait);
+#endif
+
+#ifndef CONFIG_SMP
+static inline void smp_send_stop(void)
+{
+	/* Disable all interrupts/machine checks */
+	__load_psw_mask(psw_kernel_bits & ~PSW_MASK_MCHECK);
+}
+
+#define hard_smp_processor_id()		0
+#define smp_cpu_not_running(cpu)	1
+#endif
+
+#ifdef CONFIG_HOTPLUG_CPU
+extern int smp_rescan_cpus(void);
+#else
+static inline int smp_rescan_cpus(void) { return 0; }
+#endif
+
+extern union save_area *zfcpdump_save_areas[NR_CPUS + 1];
+#endif
diff --git a/arch/s390/include/asm/socket.h b/arch/s390/include/asm/socket.h
new file mode 100644
index 00000000000..c786ab623b2
--- /dev/null
+++ b/arch/s390/include/asm/socket.h
@@ -0,0 +1,65 @@
+/*
+ *  include/asm-s390/socket.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/socket.h"
+ */
+
+#ifndef _ASM_SOCKET_H
+#define _ASM_SOCKET_H
+
+#include <asm/sockios.h>
+
+/* For setsockopt(2) */
+#define SOL_SOCKET	1
+
+#define SO_DEBUG	1
+#define SO_REUSEADDR	2
+#define SO_TYPE		3
+#define SO_ERROR	4
+#define SO_DONTROUTE	5
+#define SO_BROADCAST	6
+#define SO_SNDBUF	7
+#define SO_RCVBUF	8
+#define SO_SNDBUFFORCE	32
+#define SO_RCVBUFFORCE	33
+#define SO_KEEPALIVE	9
+#define SO_OOBINLINE	10
+#define SO_NO_CHECK	11
+#define SO_PRIORITY	12
+#define SO_LINGER	13
+#define SO_BSDCOMPAT	14
+/* To add :#define SO_REUSEPORT 15 */
+#define SO_PASSCRED	16
+#define SO_PEERCRED	17
+#define SO_RCVLOWAT	18
+#define SO_SNDLOWAT	19
+#define SO_RCVTIMEO	20
+#define SO_SNDTIMEO	21
+
+/* Security levels - as per NRL IPv6 - don't actually do anything */
+#define SO_SECURITY_AUTHENTICATION		22
+#define SO_SECURITY_ENCRYPTION_TRANSPORT	23
+#define SO_SECURITY_ENCRYPTION_NETWORK		24
+
+#define SO_BINDTODEVICE	25
+
+/* Socket filtering */
+#define SO_ATTACH_FILTER        26
+#define SO_DETACH_FILTER        27
+
+#define SO_PEERNAME		28
+#define SO_TIMESTAMP		29
+#define SCM_TIMESTAMP		SO_TIMESTAMP
+
+#define SO_ACCEPTCONN		30
+
+#define SO_PEERSEC		31
+#define SO_PASSSEC		34
+#define SO_TIMESTAMPNS		35
+#define SCM_TIMESTAMPNS		SO_TIMESTAMPNS
+
+#define SO_MARK			36
+
+#endif /* _ASM_SOCKET_H */
diff --git a/arch/s390/include/asm/sockios.h b/arch/s390/include/asm/sockios.h
new file mode 100644
index 00000000000..f4fc16c7da5
--- /dev/null
+++ b/arch/s390/include/asm/sockios.h
@@ -0,0 +1,21 @@
+/*
+ *  include/asm-s390/sockios.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/sockios.h"
+ */
+
+#ifndef __ARCH_S390_SOCKIOS__
+#define __ARCH_S390_SOCKIOS__
+
+/* Socket-level I/O control calls. */
+#define FIOSETOWN 	0x8901
+#define SIOCSPGRP	0x8902
+#define FIOGETOWN	0x8903
+#define SIOCGPGRP	0x8904
+#define SIOCATMARK	0x8905
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
+
+#endif
diff --git a/arch/s390/include/asm/sparsemem.h b/arch/s390/include/asm/sparsemem.h
new file mode 100644
index 00000000000..545d219e6a2
--- /dev/null
+++ b/arch/s390/include/asm/sparsemem.h
@@ -0,0 +1,18 @@
+#ifndef _ASM_S390_SPARSEMEM_H
+#define _ASM_S390_SPARSEMEM_H
+
+#ifdef CONFIG_64BIT
+
+#define SECTION_SIZE_BITS	28
+#define MAX_PHYSADDR_BITS	42
+#define MAX_PHYSMEM_BITS	42
+
+#else
+
+#define SECTION_SIZE_BITS	25
+#define MAX_PHYSADDR_BITS	31
+#define MAX_PHYSMEM_BITS	31
+
+#endif /* CONFIG_64BIT */
+
+#endif /* _ASM_S390_SPARSEMEM_H */
diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h
new file mode 100644
index 00000000000..df84ae96915
--- /dev/null
+++ b/arch/s390/include/asm/spinlock.h
@@ -0,0 +1,178 @@
+/*
+ *  include/asm-s390/spinlock.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/spinlock.h"
+ */
+
+#ifndef __ASM_SPINLOCK_H
+#define __ASM_SPINLOCK_H
+
+#include <linux/smp.h>
+
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+
+static inline int
+_raw_compare_and_swap(volatile unsigned int *lock,
+		      unsigned int old, unsigned int new)
+{
+	asm volatile(
+		"	cs	%0,%3,%1"
+		: "=d" (old), "=Q" (*lock)
+		: "0" (old), "d" (new), "Q" (*lock)
+		: "cc", "memory" );
+	return old;
+}
+
+#else /* __GNUC__ */
+
+static inline int
+_raw_compare_and_swap(volatile unsigned int *lock,
+		      unsigned int old, unsigned int new)
+{
+	asm volatile(
+		"	cs	%0,%3,0(%4)"
+		: "=d" (old), "=m" (*lock)
+		: "0" (old), "d" (new), "a" (lock), "m" (*lock)
+		: "cc", "memory" );
+	return old;
+}
+
+#endif /* __GNUC__ */
+
+/*
+ * Simple spin lock operations.  There are two variants, one clears IRQ's
+ * on the local processor, one does not.
+ *
+ * We make no fairness assumptions. They have a cost.
+ *
+ * (the type definitions are in asm/spinlock_types.h)
+ */
+
+#define __raw_spin_is_locked(x) ((x)->owner_cpu != 0)
+#define __raw_spin_unlock_wait(lock) \
+	do { while (__raw_spin_is_locked(lock)) \
+		 _raw_spin_relax(lock); } while (0)
+
+extern void _raw_spin_lock_wait(raw_spinlock_t *);
+extern void _raw_spin_lock_wait_flags(raw_spinlock_t *, unsigned long flags);
+extern int _raw_spin_trylock_retry(raw_spinlock_t *);
+extern void _raw_spin_relax(raw_spinlock_t *lock);
+
+static inline void __raw_spin_lock(raw_spinlock_t *lp)
+{
+	int old;
+
+	old = _raw_compare_and_swap(&lp->owner_cpu, 0, ~smp_processor_id());
+	if (likely(old == 0))
+		return;
+	_raw_spin_lock_wait(lp);
+}
+
+static inline void __raw_spin_lock_flags(raw_spinlock_t *lp,
+					 unsigned long flags)
+{
+	int old;
+
+	old = _raw_compare_and_swap(&lp->owner_cpu, 0, ~smp_processor_id());
+	if (likely(old == 0))
+		return;
+	_raw_spin_lock_wait_flags(lp, flags);
+}
+
+static inline int __raw_spin_trylock(raw_spinlock_t *lp)
+{
+	int old;
+
+	old = _raw_compare_and_swap(&lp->owner_cpu, 0, ~smp_processor_id());
+	if (likely(old == 0))
+		return 1;
+	return _raw_spin_trylock_retry(lp);
+}
+
+static inline void __raw_spin_unlock(raw_spinlock_t *lp)
+{
+	_raw_compare_and_swap(&lp->owner_cpu, lp->owner_cpu, 0);
+}
+		
+/*
+ * Read-write spinlocks, allowing multiple readers
+ * but only one writer.
+ *
+ * NOTE! it is quite common to have readers in interrupts
+ * but no interrupt writers. For those circumstances we
+ * can "mix" irq-safe locks - any writer needs to get a
+ * irq-safe write-lock, but readers can get non-irqsafe
+ * read-locks.
+ */
+
+/**
+ * read_can_lock - would read_trylock() succeed?
+ * @lock: the rwlock in question.
+ */
+#define __raw_read_can_lock(x) ((int)(x)->lock >= 0)
+
+/**
+ * write_can_lock - would write_trylock() succeed?
+ * @lock: the rwlock in question.
+ */
+#define __raw_write_can_lock(x) ((x)->lock == 0)
+
+extern void _raw_read_lock_wait(raw_rwlock_t *lp);
+extern int _raw_read_trylock_retry(raw_rwlock_t *lp);
+extern void _raw_write_lock_wait(raw_rwlock_t *lp);
+extern int _raw_write_trylock_retry(raw_rwlock_t *lp);
+
+static inline void __raw_read_lock(raw_rwlock_t *rw)
+{
+	unsigned int old;
+	old = rw->lock & 0x7fffffffU;
+	if (_raw_compare_and_swap(&rw->lock, old, old + 1) != old)
+		_raw_read_lock_wait(rw);
+}
+
+static inline void __raw_read_unlock(raw_rwlock_t *rw)
+{
+	unsigned int old, cmp;
+
+	old = rw->lock;
+	do {
+		cmp = old;
+		old = _raw_compare_and_swap(&rw->lock, old, old - 1);
+	} while (cmp != old);
+}
+
+static inline void __raw_write_lock(raw_rwlock_t *rw)
+{
+	if (unlikely(_raw_compare_and_swap(&rw->lock, 0, 0x80000000) != 0))
+		_raw_write_lock_wait(rw);
+}
+
+static inline void __raw_write_unlock(raw_rwlock_t *rw)
+{
+	_raw_compare_and_swap(&rw->lock, 0x80000000, 0);
+}
+
+static inline int __raw_read_trylock(raw_rwlock_t *rw)
+{
+	unsigned int old;
+	old = rw->lock & 0x7fffffffU;
+	if (likely(_raw_compare_and_swap(&rw->lock, old, old + 1) == old))
+		return 1;
+	return _raw_read_trylock_retry(rw);
+}
+
+static inline int __raw_write_trylock(raw_rwlock_t *rw)
+{
+	if (likely(_raw_compare_and_swap(&rw->lock, 0, 0x80000000) == 0))
+		return 1;
+	return _raw_write_trylock_retry(rw);
+}
+
+#define _raw_read_relax(lock)	cpu_relax()
+#define _raw_write_relax(lock)	cpu_relax()
+
+#endif /* __ASM_SPINLOCK_H */
diff --git a/arch/s390/include/asm/spinlock_types.h b/arch/s390/include/asm/spinlock_types.h
new file mode 100644
index 00000000000..654abc40de0
--- /dev/null
+++ b/arch/s390/include/asm/spinlock_types.h
@@ -0,0 +1,20 @@
+#ifndef __ASM_SPINLOCK_TYPES_H
+#define __ASM_SPINLOCK_TYPES_H
+
+#ifndef __LINUX_SPINLOCK_TYPES_H
+# error "please don't include this file directly"
+#endif
+
+typedef struct {
+	volatile unsigned int owner_cpu;
+} __attribute__ ((aligned (4))) raw_spinlock_t;
+
+#define __RAW_SPIN_LOCK_UNLOCKED	{ 0 }
+
+typedef struct {
+	volatile unsigned int lock;
+} raw_rwlock_t;
+
+#define __RAW_RW_LOCK_UNLOCKED		{ 0 }
+
+#endif
diff --git a/arch/s390/include/asm/stat.h b/arch/s390/include/asm/stat.h
new file mode 100644
index 00000000000..d92959eebb6
--- /dev/null
+++ b/arch/s390/include/asm/stat.h
@@ -0,0 +1,105 @@
+/*
+ *  include/asm-s390/stat.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/stat.h"
+ */
+
+#ifndef _S390_STAT_H
+#define _S390_STAT_H
+
+#ifndef __s390x__
+struct __old_kernel_stat {
+        unsigned short st_dev;
+        unsigned short st_ino;
+        unsigned short st_mode;
+        unsigned short st_nlink;
+        unsigned short st_uid;
+        unsigned short st_gid;
+        unsigned short st_rdev;
+        unsigned long  st_size;
+        unsigned long  st_atime;
+        unsigned long  st_mtime;
+        unsigned long  st_ctime;
+};
+
+struct stat {
+        unsigned short st_dev;
+        unsigned short __pad1;
+        unsigned long  st_ino;
+        unsigned short st_mode;
+        unsigned short st_nlink;
+        unsigned short st_uid;
+        unsigned short st_gid;
+        unsigned short st_rdev;
+        unsigned short __pad2;
+        unsigned long  st_size;
+        unsigned long  st_blksize;
+        unsigned long  st_blocks;
+        unsigned long  st_atime;
+        unsigned long  st_atime_nsec;
+        unsigned long  st_mtime;
+        unsigned long  st_mtime_nsec;
+        unsigned long  st_ctime;
+        unsigned long  st_ctime_nsec;
+        unsigned long  __unused4;
+        unsigned long  __unused5;
+};
+
+/* This matches struct stat64 in glibc2.1, hence the absolutely
+ * insane amounts of padding around dev_t's.
+ */
+struct stat64 {
+        unsigned long long	st_dev;
+        unsigned int    __pad1;
+#define STAT64_HAS_BROKEN_ST_INO        1
+        unsigned long   __st_ino;
+        unsigned int    st_mode;
+        unsigned int    st_nlink;
+        unsigned long   st_uid;
+        unsigned long   st_gid;
+        unsigned long long	st_rdev;
+        unsigned int    __pad3;
+        long long	st_size;
+        unsigned long   st_blksize;
+        unsigned char   __pad4[4];
+        unsigned long   __pad5;     /* future possible st_blocks high bits */
+        unsigned long   st_blocks;  /* Number 512-byte blocks allocated. */
+        unsigned long   st_atime;
+        unsigned long   st_atime_nsec;
+        unsigned long   st_mtime;
+        unsigned long   st_mtime_nsec;
+        unsigned long   st_ctime;
+        unsigned long   st_ctime_nsec;  /* will be high 32 bits of ctime someday */
+        unsigned long long	st_ino;
+};
+
+#else /* __s390x__ */
+
+struct stat {
+        unsigned long  st_dev;
+        unsigned long  st_ino;
+        unsigned long  st_nlink;
+        unsigned int   st_mode;
+        unsigned int   st_uid;
+        unsigned int   st_gid;
+        unsigned int   __pad1;
+        unsigned long  st_rdev;
+        unsigned long  st_size;
+        unsigned long  st_atime;
+	unsigned long  st_atime_nsec;
+        unsigned long  st_mtime;
+	unsigned long  st_mtime_nsec;
+        unsigned long  st_ctime;
+	unsigned long  st_ctime_nsec;
+        unsigned long  st_blksize;
+        long           st_blocks;
+        unsigned long  __unused[3];
+};
+
+#endif /* __s390x__ */
+
+#define STAT_HAVE_NSEC 1
+
+#endif
diff --git a/arch/s390/include/asm/statfs.h b/arch/s390/include/asm/statfs.h
new file mode 100644
index 00000000000..06cc70307ec
--- /dev/null
+++ b/arch/s390/include/asm/statfs.h
@@ -0,0 +1,68 @@
+/*
+ *  include/asm-s390/statfs.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/statfs.h"
+ */
+
+#ifndef _S390_STATFS_H
+#define _S390_STATFS_H
+
+#ifndef __s390x__
+#include <asm-generic/statfs.h>
+#else
+/*
+ * We can't use <asm-generic/statfs.h> because in 64-bit mode
+ * we mix ints of different sizes in our struct statfs.
+ */
+
+#ifndef __KERNEL_STRICT_NAMES
+#include <linux/types.h>
+typedef __kernel_fsid_t	fsid_t;
+#endif
+
+struct statfs {
+	int  f_type;
+	int  f_bsize;
+	long f_blocks;
+	long f_bfree;
+	long f_bavail;
+	long f_files;
+	long f_ffree;
+	__kernel_fsid_t f_fsid;
+	int  f_namelen;
+	int  f_frsize;
+	int  f_spare[5];
+};
+
+struct statfs64 {
+	int  f_type;
+	int  f_bsize;
+	long f_blocks;
+	long f_bfree;
+	long f_bavail;
+	long f_files;
+	long f_ffree;
+	__kernel_fsid_t f_fsid;
+	int  f_namelen;
+	int  f_frsize;
+	int  f_spare[5];
+};
+
+struct compat_statfs64 {
+	__u32 f_type;
+	__u32 f_bsize;
+	__u64 f_blocks;
+	__u64 f_bfree;
+	__u64 f_bavail;
+	__u64 f_files;
+	__u64 f_ffree;
+	__kernel_fsid_t f_fsid;
+	__u32 f_namelen;
+	__u32 f_frsize;
+	__u32 f_spare[5];
+};
+
+#endif /* __s390x__ */
+#endif
diff --git a/arch/s390/include/asm/string.h b/arch/s390/include/asm/string.h
new file mode 100644
index 00000000000..d074673a6d9
--- /dev/null
+++ b/arch/s390/include/asm/string.h
@@ -0,0 +1,143 @@
+/*
+ *  include/asm-s390/string.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
+ */
+
+#ifndef _S390_STRING_H_
+#define _S390_STRING_H_
+
+#ifdef __KERNEL__
+
+#ifndef _LINUX_TYPES_H
+#include <linux/types.h>
+#endif
+
+#define __HAVE_ARCH_MEMCHR	/* inline & arch function */
+#define __HAVE_ARCH_MEMCMP	/* arch function */
+#define __HAVE_ARCH_MEMCPY	/* gcc builtin & arch function */
+#define __HAVE_ARCH_MEMSCAN	/* inline & arch function */
+#define __HAVE_ARCH_MEMSET	/* gcc builtin & arch function */
+#define __HAVE_ARCH_STRCAT	/* inline & arch function */
+#define __HAVE_ARCH_STRCMP	/* arch function */
+#define __HAVE_ARCH_STRCPY	/* inline & arch function */
+#define __HAVE_ARCH_STRLCAT	/* arch function */
+#define __HAVE_ARCH_STRLCPY	/* arch function */
+#define __HAVE_ARCH_STRLEN	/* inline & arch function */
+#define __HAVE_ARCH_STRNCAT	/* arch function */
+#define __HAVE_ARCH_STRNCPY	/* arch function */
+#define __HAVE_ARCH_STRNLEN	/* inline & arch function */
+#define __HAVE_ARCH_STRRCHR	/* arch function */
+#define __HAVE_ARCH_STRSTR	/* arch function */
+
+/* Prototypes for non-inlined arch strings functions. */
+extern int memcmp(const void *, const void *, size_t);
+extern void *memcpy(void *, const void *, size_t);
+extern void *memset(void *, int, size_t);
+extern int strcmp(const char *,const char *);
+extern size_t strlcat(char *, const char *, size_t);
+extern size_t strlcpy(char *, const char *, size_t);
+extern char *strncat(char *, const char *, size_t);
+extern char *strncpy(char *, const char *, size_t);
+extern char *strrchr(const char *, int);
+extern char *strstr(const char *, const char *);
+
+#undef __HAVE_ARCH_MEMMOVE
+#undef __HAVE_ARCH_STRCHR
+#undef __HAVE_ARCH_STRNCHR
+#undef __HAVE_ARCH_STRNCMP
+#undef __HAVE_ARCH_STRNICMP
+#undef __HAVE_ARCH_STRPBRK
+#undef __HAVE_ARCH_STRSEP
+#undef __HAVE_ARCH_STRSPN
+
+#if !defined(IN_ARCH_STRING_C)
+
+static inline void *memchr(const void * s, int c, size_t n)
+{
+	register int r0 asm("0") = (char) c;
+	const void *ret = s + n;
+
+	asm volatile(
+		"0:	srst	%0,%1\n"
+		"	jo	0b\n"
+		"	jl	1f\n"
+		"	la	%0,0\n"
+		"1:"
+		: "+a" (ret), "+&a" (s) : "d" (r0) : "cc");
+	return (void *) ret;
+}
+
+static inline void *memscan(void *s, int c, size_t n)
+{
+	register int r0 asm("0") = (char) c;
+	const void *ret = s + n;
+
+	asm volatile(
+		"0:	srst	%0,%1\n"
+		"	jo	0b\n"
+		: "+a" (ret), "+&a" (s) : "d" (r0) : "cc");
+	return (void *) ret;
+}
+
+static inline char *strcat(char *dst, const char *src)
+{
+	register int r0 asm("0") = 0;
+	unsigned long dummy;
+	char *ret = dst;
+
+	asm volatile(
+		"0:	srst	%0,%1\n"
+		"	jo	0b\n"
+		"1:	mvst	%0,%2\n"
+		"	jo	1b"
+		: "=&a" (dummy), "+a" (dst), "+a" (src)
+		: "d" (r0), "0" (0) : "cc", "memory" );
+	return ret;
+}
+
+static inline char *strcpy(char *dst, const char *src)
+{
+	register int r0 asm("0") = 0;
+	char *ret = dst;
+
+	asm volatile(
+		"0:	mvst	%0,%1\n"
+		"	jo	0b"
+		: "+&a" (dst), "+&a" (src) : "d" (r0)
+		: "cc", "memory");
+	return ret;
+}
+
+static inline size_t strlen(const char *s)
+{
+	register unsigned long r0 asm("0") = 0;
+	const char *tmp = s;
+
+	asm volatile(
+		"0:	srst	%0,%1\n"
+		"	jo	0b"
+		: "+d" (r0), "+a" (tmp) :  : "cc");
+	return r0 - (unsigned long) s;
+}
+
+static inline size_t strnlen(const char * s, size_t n)
+{
+	register int r0 asm("0") = 0;
+	const char *tmp = s;
+	const char *end = s + n;
+
+	asm volatile(
+		"0:	srst	%0,%1\n"
+		"	jo	0b"
+		: "+a" (end), "+a" (tmp) : "d" (r0)  : "cc");
+	return end - s;
+}
+
+#endif /* !IN_ARCH_STRING_C */
+
+#endif /* __KERNEL__ */
+
+#endif /* __S390_STRING_H_ */
diff --git a/arch/s390/include/asm/suspend.h b/arch/s390/include/asm/suspend.h
new file mode 100644
index 00000000000..1f34580e67a
--- /dev/null
+++ b/arch/s390/include/asm/suspend.h
@@ -0,0 +1,5 @@
+#ifndef __ASM_S390_SUSPEND_H
+#define __ASM_S390_SUSPEND_H
+
+#endif
+
diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h
new file mode 100644
index 00000000000..6e623971fbb
--- /dev/null
+++ b/arch/s390/include/asm/syscall.h
@@ -0,0 +1,80 @@
+/*
+ * Access to user system call parameters and results
+ *
+ *  Copyright IBM Corp. 2008
+ *  Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ */
+
+#ifndef _ASM_SYSCALL_H
+#define _ASM_SYSCALL_H	1
+
+#include <asm/ptrace.h>
+
+static inline long syscall_get_nr(struct task_struct *task,
+				  struct pt_regs *regs)
+{
+	if (regs->trap != __LC_SVC_OLD_PSW)
+		return -1;
+	return regs->gprs[2];
+}
+
+static inline void syscall_rollback(struct task_struct *task,
+				    struct pt_regs *regs)
+{
+	regs->gprs[2] = regs->orig_gpr2;
+}
+
+static inline long syscall_get_error(struct task_struct *task,
+				     struct pt_regs *regs)
+{
+	return (regs->gprs[2] >= -4096UL) ? -regs->gprs[2] : 0;
+}
+
+static inline long syscall_get_return_value(struct task_struct *task,
+					    struct pt_regs *regs)
+{
+	return regs->gprs[2];
+}
+
+static inline void syscall_set_return_value(struct task_struct *task,
+					    struct pt_regs *regs,
+					    int error, long val)
+{
+	regs->gprs[2] = error ? -error : val;
+}
+
+static inline void syscall_get_arguments(struct task_struct *task,
+					 struct pt_regs *regs,
+					 unsigned int i, unsigned int n,
+					 unsigned long *args)
+{
+	BUG_ON(i + n > 6);
+#ifdef CONFIG_COMPAT
+	if (test_tsk_thread_flag(task, TIF_31BIT)) {
+		if (i + n == 6)
+			args[--n] = (u32) regs->args[0];
+		while (n-- > 0)
+			args[n] = (u32) regs->gprs[2 + i + n];
+	}
+#endif
+	if (i + n == 6)
+		args[--n] = regs->args[0];
+	memcpy(args, &regs->gprs[2 + i], n * sizeof(args[0]));
+}
+
+static inline void syscall_set_arguments(struct task_struct *task,
+					 struct pt_regs *regs,
+					 unsigned int i, unsigned int n,
+					 const unsigned long *args)
+{
+	BUG_ON(i + n > 6);
+	if (i + n == 6)
+		regs->args[0] = args[--n];
+	memcpy(&regs->gprs[2 + i], args, n * sizeof(args[0]));
+}
+
+#endif	/* _ASM_SYSCALL_H */
diff --git a/arch/s390/include/asm/sysinfo.h b/arch/s390/include/asm/sysinfo.h
new file mode 100644
index 00000000000..79d01343f8b
--- /dev/null
+++ b/arch/s390/include/asm/sysinfo.h
@@ -0,0 +1,121 @@
+/*
+ * definition for store system information stsi
+ *
+ * Copyright IBM Corp. 2001,2008
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ *
+ *    Author(s): Ulrich Weigand <weigand@de.ibm.com>
+ *		 Christian Borntraeger <borntraeger@de.ibm.com>
+ */
+
+#ifndef __ASM_S390_SYSINFO_H
+#define __ASM_S390_SYSINFO_H
+
+struct sysinfo_1_1_1 {
+	char reserved_0[32];
+	char manufacturer[16];
+	char type[4];
+	char reserved_1[12];
+	char model_capacity[16];
+	char sequence[16];
+	char plant[4];
+	char model[16];
+	char model_perm_cap[16];
+	char model_temp_cap[16];
+	char model_cap_rating[4];
+	char model_perm_cap_rating[4];
+	char model_temp_cap_rating[4];
+};
+
+struct sysinfo_1_2_1 {
+	char reserved_0[80];
+	char sequence[16];
+	char plant[4];
+	char reserved_1[2];
+	unsigned short cpu_address;
+};
+
+struct sysinfo_1_2_2 {
+	char format;
+	char reserved_0[1];
+	unsigned short acc_offset;
+	char reserved_1[24];
+	unsigned int secondary_capability;
+	unsigned int capability;
+	unsigned short cpus_total;
+	unsigned short cpus_configured;
+	unsigned short cpus_standby;
+	unsigned short cpus_reserved;
+	unsigned short adjustment[0];
+};
+
+struct sysinfo_1_2_2_extension {
+	unsigned int alt_capability;
+	unsigned short alt_adjustment[0];
+};
+
+struct sysinfo_2_2_1 {
+	char reserved_0[80];
+	char sequence[16];
+	char plant[4];
+	unsigned short cpu_id;
+	unsigned short cpu_address;
+};
+
+struct sysinfo_2_2_2 {
+	char reserved_0[32];
+	unsigned short lpar_number;
+	char reserved_1;
+	unsigned char characteristics;
+	unsigned short cpus_total;
+	unsigned short cpus_configured;
+	unsigned short cpus_standby;
+	unsigned short cpus_reserved;
+	char name[8];
+	unsigned int caf;
+	char reserved_2[16];
+	unsigned short cpus_dedicated;
+	unsigned short cpus_shared;
+};
+
+#define LPAR_CHAR_DEDICATED	(1 << 7)
+#define LPAR_CHAR_SHARED	(1 << 6)
+#define LPAR_CHAR_LIMITED	(1 << 5)
+
+struct sysinfo_3_2_2 {
+	char reserved_0[31];
+	unsigned char count;
+	struct {
+		char reserved_0[4];
+		unsigned short cpus_total;
+		unsigned short cpus_configured;
+		unsigned short cpus_standby;
+		unsigned short cpus_reserved;
+		char name[8];
+		unsigned int caf;
+		char cpi[16];
+		char reserved_1[24];
+
+	} vm[8];
+};
+
+static inline int stsi(void *sysinfo, int fc, int sel1, int sel2)
+{
+	register int r0 asm("0") = (fc << 28) | sel1;
+	register int r1 asm("1") = sel2;
+
+	asm volatile(
+		"   stsi 0(%2)\n"
+		"0: jz   2f\n"
+		"1: lhi  %0,%3\n"
+		"2:\n"
+		EX_TABLE(0b, 1b)
+		: "+d" (r0) : "d" (r1), "a" (sysinfo), "K" (-ENOSYS)
+		: "cc", "memory");
+	return r0;
+}
+
+#endif /* __ASM_S390_SYSINFO_H */
diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h
new file mode 100644
index 00000000000..819e7d99ca0
--- /dev/null
+++ b/arch/s390/include/asm/system.h
@@ -0,0 +1,462 @@
+/*
+ *  include/asm-s390/system.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
+ *
+ *  Derived from "include/asm-i386/system.h"
+ */
+
+#ifndef __ASM_SYSTEM_H
+#define __ASM_SYSTEM_H
+
+#include <linux/kernel.h>
+#include <asm/types.h>
+#include <asm/ptrace.h>
+#include <asm/setup.h>
+#include <asm/processor.h>
+#include <asm/lowcore.h>
+
+#ifdef __KERNEL__
+
+struct task_struct;
+
+extern struct task_struct *__switch_to(void *, void *);
+
+static inline void save_fp_regs(s390_fp_regs *fpregs)
+{
+	asm volatile(
+		"	std	0,8(%1)\n"
+		"	std	2,24(%1)\n"
+		"	std	4,40(%1)\n"
+		"	std	6,56(%1)"
+		: "=m" (*fpregs) : "a" (fpregs), "m" (*fpregs) : "memory");
+	if (!MACHINE_HAS_IEEE)
+		return;
+	asm volatile(
+		"	stfpc	0(%1)\n"
+		"	std	1,16(%1)\n"
+		"	std	3,32(%1)\n"
+		"	std	5,48(%1)\n"
+		"	std	7,64(%1)\n"
+		"	std	8,72(%1)\n"
+		"	std	9,80(%1)\n"
+		"	std	10,88(%1)\n"
+		"	std	11,96(%1)\n"
+		"	std	12,104(%1)\n"
+		"	std	13,112(%1)\n"
+		"	std	14,120(%1)\n"
+		"	std	15,128(%1)\n"
+		: "=m" (*fpregs) : "a" (fpregs), "m" (*fpregs) : "memory");
+}
+
+static inline void restore_fp_regs(s390_fp_regs *fpregs)
+{
+	asm volatile(
+		"	ld	0,8(%0)\n"
+		"	ld	2,24(%0)\n"
+		"	ld	4,40(%0)\n"
+		"	ld	6,56(%0)"
+		: : "a" (fpregs), "m" (*fpregs));
+	if (!MACHINE_HAS_IEEE)
+		return;
+	asm volatile(
+		"	lfpc	0(%0)\n"
+		"	ld	1,16(%0)\n"
+		"	ld	3,32(%0)\n"
+		"	ld	5,48(%0)\n"
+		"	ld	7,64(%0)\n"
+		"	ld	8,72(%0)\n"
+		"	ld	9,80(%0)\n"
+		"	ld	10,88(%0)\n"
+		"	ld	11,96(%0)\n"
+		"	ld	12,104(%0)\n"
+		"	ld	13,112(%0)\n"
+		"	ld	14,120(%0)\n"
+		"	ld	15,128(%0)\n"
+		: : "a" (fpregs), "m" (*fpregs));
+}
+
+static inline void save_access_regs(unsigned int *acrs)
+{
+	asm volatile("stam 0,15,0(%0)" : : "a" (acrs) : "memory");
+}
+
+static inline void restore_access_regs(unsigned int *acrs)
+{
+	asm volatile("lam 0,15,0(%0)" : : "a" (acrs));
+}
+
+#define switch_to(prev,next,last) do {					     \
+	if (prev == next)						     \
+		break;							     \
+	save_fp_regs(&prev->thread.fp_regs);				     \
+	restore_fp_regs(&next->thread.fp_regs);				     \
+	save_access_regs(&prev->thread.acrs[0]);			     \
+	restore_access_regs(&next->thread.acrs[0]);			     \
+	prev = __switch_to(prev,next);					     \
+} while (0)
+
+#ifdef CONFIG_VIRT_CPU_ACCOUNTING
+extern void account_vtime(struct task_struct *);
+extern void account_tick_vtime(struct task_struct *);
+extern void account_system_vtime(struct task_struct *);
+#else
+#define account_vtime(x) do { /* empty */ } while (0)
+#endif
+
+#ifdef CONFIG_PFAULT
+extern void pfault_irq_init(void);
+extern int pfault_init(void);
+extern void pfault_fini(void);
+#else /* CONFIG_PFAULT */
+#define pfault_irq_init()	do { } while (0)
+#define pfault_init()		({-1;})
+#define pfault_fini()		do { } while (0)
+#endif /* CONFIG_PFAULT */
+
+#ifdef CONFIG_PAGE_STATES
+extern void cmma_init(void);
+#else
+static inline void cmma_init(void) { }
+#endif
+
+#define finish_arch_switch(prev) do {					     \
+	set_fs(current->thread.mm_segment);				     \
+	account_vtime(prev);						     \
+} while (0)
+
+#define nop() asm volatile("nop")
+
+#define xchg(ptr,x)							  \
+({									  \
+	__typeof__(*(ptr)) __ret;					  \
+	__ret = (__typeof__(*(ptr)))					  \
+		__xchg((unsigned long)(x), (void *)(ptr),sizeof(*(ptr))); \
+	__ret;								  \
+})
+
+extern void __xchg_called_with_bad_pointer(void);
+
+static inline unsigned long __xchg(unsigned long x, void * ptr, int size)
+{
+	unsigned long addr, old;
+	int shift;
+
+        switch (size) {
+	case 1:
+		addr = (unsigned long) ptr;
+		shift = (3 ^ (addr & 3)) << 3;
+		addr ^= addr & 3;
+		asm volatile(
+			"	l	%0,0(%4)\n"
+			"0:	lr	0,%0\n"
+			"	nr	0,%3\n"
+			"	or	0,%2\n"
+			"	cs	%0,0,0(%4)\n"
+			"	jl	0b\n"
+			: "=&d" (old), "=m" (*(int *) addr)
+			: "d" (x << shift), "d" (~(255 << shift)), "a" (addr),
+			  "m" (*(int *) addr) : "memory", "cc", "0");
+		return old >> shift;
+	case 2:
+		addr = (unsigned long) ptr;
+		shift = (2 ^ (addr & 2)) << 3;
+		addr ^= addr & 2;
+		asm volatile(
+			"	l	%0,0(%4)\n"
+			"0:	lr	0,%0\n"
+			"	nr	0,%3\n"
+			"	or	0,%2\n"
+			"	cs	%0,0,0(%4)\n"
+			"	jl	0b\n"
+			: "=&d" (old), "=m" (*(int *) addr)
+			: "d" (x << shift), "d" (~(65535 << shift)), "a" (addr),
+			  "m" (*(int *) addr) : "memory", "cc", "0");
+		return old >> shift;
+	case 4:
+		asm volatile(
+			"	l	%0,0(%3)\n"
+			"0:	cs	%0,%2,0(%3)\n"
+			"	jl	0b\n"
+			: "=&d" (old), "=m" (*(int *) ptr)
+			: "d" (x), "a" (ptr), "m" (*(int *) ptr)
+			: "memory", "cc");
+		return old;
+#ifdef __s390x__
+	case 8:
+		asm volatile(
+			"	lg	%0,0(%3)\n"
+			"0:	csg	%0,%2,0(%3)\n"
+			"	jl	0b\n"
+			: "=&d" (old), "=m" (*(long *) ptr)
+			: "d" (x), "a" (ptr), "m" (*(long *) ptr)
+			: "memory", "cc");
+		return old;
+#endif /* __s390x__ */
+	}
+	__xchg_called_with_bad_pointer();
+	return x;
+}
+
+/*
+ * Atomic compare and exchange.  Compare OLD with MEM, if identical,
+ * store NEW in MEM.  Return the initial value in MEM.  Success is
+ * indicated by comparing RETURN with OLD.
+ */
+
+#define __HAVE_ARCH_CMPXCHG 1
+
+#define cmpxchg(ptr, o, n)						\
+	((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o),	\
+					(unsigned long)(n), sizeof(*(ptr))))
+
+extern void __cmpxchg_called_with_bad_pointer(void);
+
+static inline unsigned long
+__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
+{
+	unsigned long addr, prev, tmp;
+	int shift;
+
+        switch (size) {
+	case 1:
+		addr = (unsigned long) ptr;
+		shift = (3 ^ (addr & 3)) << 3;
+		addr ^= addr & 3;
+		asm volatile(
+			"	l	%0,0(%4)\n"
+			"0:	nr	%0,%5\n"
+			"	lr	%1,%0\n"
+			"	or	%0,%2\n"
+			"	or	%1,%3\n"
+			"	cs	%0,%1,0(%4)\n"
+			"	jnl	1f\n"
+			"	xr	%1,%0\n"
+			"	nr	%1,%5\n"
+			"	jnz	0b\n"
+			"1:"
+			: "=&d" (prev), "=&d" (tmp)
+			: "d" (old << shift), "d" (new << shift), "a" (ptr),
+			  "d" (~(255 << shift))
+			: "memory", "cc");
+		return prev >> shift;
+	case 2:
+		addr = (unsigned long) ptr;
+		shift = (2 ^ (addr & 2)) << 3;
+		addr ^= addr & 2;
+		asm volatile(
+			"	l	%0,0(%4)\n"
+			"0:	nr	%0,%5\n"
+			"	lr	%1,%0\n"
+			"	or	%0,%2\n"
+			"	or	%1,%3\n"
+			"	cs	%0,%1,0(%4)\n"
+			"	jnl	1f\n"
+			"	xr	%1,%0\n"
+			"	nr	%1,%5\n"
+			"	jnz	0b\n"
+			"1:"
+			: "=&d" (prev), "=&d" (tmp)
+			: "d" (old << shift), "d" (new << shift), "a" (ptr),
+			  "d" (~(65535 << shift))
+			: "memory", "cc");
+		return prev >> shift;
+	case 4:
+		asm volatile(
+			"	cs	%0,%2,0(%3)\n"
+			: "=&d" (prev) : "0" (old), "d" (new), "a" (ptr)
+			: "memory", "cc");
+		return prev;
+#ifdef __s390x__
+	case 8:
+		asm volatile(
+			"	csg	%0,%2,0(%3)\n"
+			: "=&d" (prev) : "0" (old), "d" (new), "a" (ptr)
+			: "memory", "cc");
+		return prev;
+#endif /* __s390x__ */
+        }
+	__cmpxchg_called_with_bad_pointer();
+	return old;
+}
+
+/*
+ * Force strict CPU ordering.
+ * And yes, this is required on UP too when we're talking
+ * to devices.
+ *
+ * This is very similar to the ppc eieio/sync instruction in that is
+ * does a checkpoint syncronisation & makes sure that 
+ * all memory ops have completed wrt other CPU's ( see 7-15 POP  DJB ).
+ */
+
+#define eieio()	asm volatile("bcr 15,0" : : : "memory")
+#define SYNC_OTHER_CORES(x)   eieio()
+#define mb()    eieio()
+#define rmb()   eieio()
+#define wmb()   eieio()
+#define read_barrier_depends() do { } while(0)
+#define smp_mb()       mb()
+#define smp_rmb()      rmb()
+#define smp_wmb()      wmb()
+#define smp_read_barrier_depends()    read_barrier_depends()
+#define smp_mb__before_clear_bit()     smp_mb()
+#define smp_mb__after_clear_bit()      smp_mb()
+
+
+#define set_mb(var, value)      do { var = value; mb(); } while (0)
+
+#ifdef __s390x__
+
+#define __ctl_load(array, low, high) ({				\
+	typedef struct { char _[sizeof(array)]; } addrtype;	\
+	asm volatile(						\
+		"	lctlg	%1,%2,0(%0)\n"			\
+		: : "a" (&array), "i" (low), "i" (high),	\
+		    "m" (*(addrtype *)(&array)));		\
+	})
+
+#define __ctl_store(array, low, high) ({			\
+	typedef struct { char _[sizeof(array)]; } addrtype;	\
+	asm volatile(						\
+		"	stctg	%2,%3,0(%1)\n"			\
+		: "=m" (*(addrtype *)(&array))			\
+		: "a" (&array), "i" (low), "i" (high));		\
+	})
+
+#else /* __s390x__ */
+
+#define __ctl_load(array, low, high) ({				\
+	typedef struct { char _[sizeof(array)]; } addrtype;	\
+	asm volatile(						\
+		"	lctl	%1,%2,0(%0)\n"			\
+		: : "a" (&array), "i" (low), "i" (high),	\
+		    "m" (*(addrtype *)(&array)));		\
+})
+
+#define __ctl_store(array, low, high) ({			\
+	typedef struct { char _[sizeof(array)]; } addrtype;	\
+	asm volatile(						\
+		"	stctl	%2,%3,0(%1)\n"			\
+		: "=m" (*(addrtype *)(&array))			\
+		: "a" (&array), "i" (low), "i" (high));		\
+	})
+
+#endif /* __s390x__ */
+
+#define __ctl_set_bit(cr, bit) ({	\
+	unsigned long __dummy;		\
+	__ctl_store(__dummy, cr, cr);	\
+	__dummy |= 1UL << (bit);	\
+	__ctl_load(__dummy, cr, cr);	\
+})
+
+#define __ctl_clear_bit(cr, bit) ({	\
+	unsigned long __dummy;		\
+	__ctl_store(__dummy, cr, cr);	\
+	__dummy &= ~(1UL << (bit));	\
+	__ctl_load(__dummy, cr, cr);	\
+})
+
+#include <linux/irqflags.h>
+
+#include <asm-generic/cmpxchg-local.h>
+
+static inline unsigned long __cmpxchg_local(volatile void *ptr,
+				      unsigned long old,
+				      unsigned long new, int size)
+{
+	switch (size) {
+	case 1:
+	case 2:
+	case 4:
+#ifdef __s390x__
+	case 8:
+#endif
+		return __cmpxchg(ptr, old, new, size);
+	default:
+		return __cmpxchg_local_generic(ptr, old, new, size);
+	}
+
+	return old;
+}
+
+/*
+ * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
+ * them available.
+ */
+#define cmpxchg_local(ptr, o, n)					\
+	((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o),	\
+			(unsigned long)(n), sizeof(*(ptr))))
+#ifdef __s390x__
+#define cmpxchg64_local(ptr, o, n)					\
+  ({									\
+	BUILD_BUG_ON(sizeof(*(ptr)) != 8);				\
+	cmpxchg_local((ptr), (o), (n));					\
+  })
+#else
+#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+#endif
+
+/*
+ * Use to set psw mask except for the first byte which
+ * won't be changed by this function.
+ */
+static inline void
+__set_psw_mask(unsigned long mask)
+{
+	__load_psw_mask(mask | (__raw_local_irq_stosm(0x00) & ~(-1UL >> 8)));
+}
+
+#define local_mcck_enable()  __set_psw_mask(psw_kernel_bits)
+#define local_mcck_disable() __set_psw_mask(psw_kernel_bits & ~PSW_MASK_MCHECK)
+
+int stfle(unsigned long long *list, int doublewords);
+
+#ifdef CONFIG_SMP
+
+extern void smp_ctl_set_bit(int cr, int bit);
+extern void smp_ctl_clear_bit(int cr, int bit);
+#define ctl_set_bit(cr, bit) smp_ctl_set_bit(cr, bit)
+#define ctl_clear_bit(cr, bit) smp_ctl_clear_bit(cr, bit)
+
+#else
+
+#define ctl_set_bit(cr, bit) __ctl_set_bit(cr, bit)
+#define ctl_clear_bit(cr, bit) __ctl_clear_bit(cr, bit)
+
+#endif /* CONFIG_SMP */
+
+static inline unsigned int stfl(void)
+{
+	asm volatile(
+		"	.insn	s,0xb2b10000,0(0)\n" /* stfl */
+		"0:\n"
+		EX_TABLE(0b,0b));
+	return S390_lowcore.stfl_fac_list;
+}
+
+static inline unsigned short stap(void)
+{
+	unsigned short cpu_address;
+
+	asm volatile("stap %0" : "=m" (cpu_address));
+	return cpu_address;
+}
+
+extern void (*_machine_restart)(char *command);
+extern void (*_machine_halt)(void);
+extern void (*_machine_power_off)(void);
+
+#define arch_align_stack(x) (x)
+
+#ifdef CONFIG_TRACE_IRQFLAGS
+extern psw_t sysc_restore_trace_psw;
+extern psw_t io_restore_trace_psw;
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif
diff --git a/arch/s390/include/asm/tape390.h b/arch/s390/include/asm/tape390.h
new file mode 100644
index 00000000000..884fba48f1f
--- /dev/null
+++ b/arch/s390/include/asm/tape390.h
@@ -0,0 +1,103 @@
+/*************************************************************************
+ *
+ * tape390.h
+ *	   enables user programs to display messages and control encryption
+ *	   on s390 tape devices
+ *
+ *	   Copyright IBM Corp. 2001,2006
+ *	   Author(s): Michael Holzheu <holzheu@de.ibm.com>
+ *
+ *************************************************************************/
+
+#ifndef _TAPE390_H
+#define _TAPE390_H
+
+#define TAPE390_DISPLAY _IOW('d', 1, struct display_struct)
+
+/*
+ * The TAPE390_DISPLAY ioctl calls the Load Display command
+ * which transfers 17 bytes of data from the channel to the subsystem:
+ *     - 1 format control byte, and
+ *     - two 8-byte messages
+ *
+ * Format control byte:
+ *   0-2: New Message Overlay
+ *     3: Alternate Messages
+ *     4: Blink Message
+ *     5: Display Low/High Message
+ *     6: Reserved
+ *     7: Automatic Load Request
+ *
+ */
+
+typedef struct display_struct {
+        char cntrl;
+        char message1[8];
+        char message2[8];
+} display_struct;
+
+/*
+ * Tape encryption support
+ */
+
+struct tape390_crypt_info {
+	char capability;
+	char status;
+	char medium_status;
+} __attribute__ ((packed));
+
+
+/* Macros for "capable" field */
+#define TAPE390_CRYPT_SUPPORTED_MASK 0x01
+#define TAPE390_CRYPT_SUPPORTED(x) \
+	((x.capability & TAPE390_CRYPT_SUPPORTED_MASK))
+
+/* Macros for "status" field */
+#define TAPE390_CRYPT_ON_MASK 0x01
+#define TAPE390_CRYPT_ON(x) (((x.status) & TAPE390_CRYPT_ON_MASK))
+
+/* Macros for "medium status" field */
+#define TAPE390_MEDIUM_LOADED_MASK 0x01
+#define TAPE390_MEDIUM_ENCRYPTED_MASK 0x02
+#define TAPE390_MEDIUM_ENCRYPTED(x) \
+	(((x.medium_status) & TAPE390_MEDIUM_ENCRYPTED_MASK))
+#define TAPE390_MEDIUM_LOADED(x) \
+	(((x.medium_status) & TAPE390_MEDIUM_LOADED_MASK))
+
+/*
+ * The TAPE390_CRYPT_SET ioctl is used to switch on/off encryption.
+ * The "encryption_capable" and "tape_status" fields are ignored for this ioctl!
+ */
+#define TAPE390_CRYPT_SET _IOW('d', 2, struct tape390_crypt_info)
+
+/*
+ * The TAPE390_CRYPT_QUERY ioctl is used to query the encryption state.
+ */
+#define TAPE390_CRYPT_QUERY _IOR('d', 3, struct tape390_crypt_info)
+
+/* Values for "kekl1/2_type" and "kekl1/2_type_on_tape" fields */
+#define TAPE390_KEKL_TYPE_NONE 0
+#define TAPE390_KEKL_TYPE_LABEL 1
+#define TAPE390_KEKL_TYPE_HASH 2
+
+struct tape390_kekl {
+	unsigned char type;
+	unsigned char type_on_tape;
+	char label[65];
+} __attribute__ ((packed));
+
+struct tape390_kekl_pair {
+	struct tape390_kekl kekl[2];
+} __attribute__ ((packed));
+
+/*
+ * The TAPE390_KEKL_SET ioctl is used to set Key Encrypting Key labels.
+ */
+#define TAPE390_KEKL_SET _IOW('d', 4, struct tape390_kekl_pair)
+
+/*
+ * The TAPE390_KEKL_QUERY ioctl is used to query Key Encrypting Key labels.
+ */
+#define TAPE390_KEKL_QUERY _IOR('d', 5, struct tape390_kekl_pair)
+
+#endif 
diff --git a/arch/s390/include/asm/termbits.h b/arch/s390/include/asm/termbits.h
new file mode 100644
index 00000000000..58731853d52
--- /dev/null
+++ b/arch/s390/include/asm/termbits.h
@@ -0,0 +1,206 @@
+/*
+ *  include/asm-s390/termbits.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/termbits.h"
+ */
+
+#ifndef __ARCH_S390_TERMBITS_H__
+#define __ARCH_S390_TERMBITS_H__
+
+#include <linux/posix_types.h>
+
+typedef unsigned char	cc_t;
+typedef unsigned int	speed_t;
+typedef unsigned int	tcflag_t;
+
+#define NCCS 19
+struct termios {
+	tcflag_t c_iflag;		/* input mode flags */
+	tcflag_t c_oflag;		/* output mode flags */
+	tcflag_t c_cflag;		/* control mode flags */
+	tcflag_t c_lflag;		/* local mode flags */
+	cc_t c_line;			/* line discipline */
+	cc_t c_cc[NCCS];		/* control characters */
+};
+
+struct termios2 {
+	tcflag_t c_iflag;		/* input mode flags */
+	tcflag_t c_oflag;		/* output mode flags */
+	tcflag_t c_cflag;		/* control mode flags */
+	tcflag_t c_lflag;		/* local mode flags */
+	cc_t c_line;			/* line discipline */
+	cc_t c_cc[NCCS];		/* control characters */
+	speed_t c_ispeed;		/* input speed */
+	speed_t c_ospeed;		/* output speed */
+};
+
+struct ktermios {
+	tcflag_t c_iflag;		/* input mode flags */
+	tcflag_t c_oflag;		/* output mode flags */
+	tcflag_t c_cflag;		/* control mode flags */
+	tcflag_t c_lflag;		/* local mode flags */
+	cc_t c_line;			/* line discipline */
+	cc_t c_cc[NCCS];		/* control characters */
+	speed_t c_ispeed;		/* input speed */
+	speed_t c_ospeed;		/* output speed */
+};
+
+/* c_cc characters */
+#define VINTR 0
+#define VQUIT 1
+#define VERASE 2
+#define VKILL 3
+#define VEOF 4
+#define VTIME 5
+#define VMIN 6
+#define VSWTC 7
+#define VSTART 8
+#define VSTOP 9
+#define VSUSP 10
+#define VEOL 11
+#define VREPRINT 12
+#define VDISCARD 13
+#define VWERASE 14
+#define VLNEXT 15
+#define VEOL2 16
+
+/* c_iflag bits */
+#define IGNBRK	0000001
+#define BRKINT	0000002
+#define IGNPAR	0000004
+#define PARMRK	0000010
+#define INPCK	0000020
+#define ISTRIP	0000040
+#define INLCR	0000100
+#define IGNCR	0000200
+#define ICRNL	0000400
+#define IUCLC	0001000
+#define IXON	0002000
+#define IXANY	0004000
+#define IXOFF	0010000
+#define IMAXBEL	0020000
+#define IUTF8	0040000
+
+/* c_oflag bits */
+#define OPOST	0000001
+#define OLCUC	0000002
+#define ONLCR	0000004
+#define OCRNL	0000010
+#define ONOCR	0000020
+#define ONLRET	0000040
+#define OFILL	0000100
+#define OFDEL	0000200
+#define NLDLY	0000400
+#define   NL0	0000000
+#define   NL1	0000400
+#define CRDLY	0003000
+#define   CR0	0000000
+#define   CR1	0001000
+#define   CR2	0002000
+#define   CR3	0003000
+#define TABDLY	0014000
+#define   TAB0	0000000
+#define   TAB1	0004000
+#define   TAB2	0010000
+#define   TAB3	0014000
+#define   XTABS	0014000
+#define BSDLY	0020000
+#define   BS0	0000000
+#define   BS1	0020000
+#define VTDLY	0040000
+#define   VT0	0000000
+#define   VT1	0040000
+#define FFDLY	0100000
+#define   FF0	0000000
+#define   FF1	0100000
+
+/* c_cflag bit meaning */
+#define CBAUD	0010017
+#define  B0	0000000		/* hang up */
+#define  B50	0000001
+#define  B75	0000002
+#define  B110	0000003
+#define  B134	0000004
+#define  B150	0000005
+#define  B200	0000006
+#define  B300	0000007
+#define  B600	0000010
+#define  B1200	0000011
+#define  B1800	0000012
+#define  B2400	0000013
+#define  B4800	0000014
+#define  B9600	0000015
+#define  B19200	0000016
+#define  B38400	0000017
+#define EXTA B19200
+#define EXTB B38400
+#define CSIZE	0000060
+#define   CS5	0000000
+#define   CS6	0000020
+#define   CS7	0000040
+#define   CS8	0000060
+#define CSTOPB	0000100
+#define CREAD	0000200
+#define PARENB	0000400
+#define PARODD	0001000
+#define HUPCL	0002000
+#define CLOCAL	0004000
+#define CBAUDEX 0010000
+#define  BOTHER  0010000
+#define  B57600  0010001
+#define  B115200 0010002
+#define  B230400 0010003
+#define  B460800 0010004
+#define   B500000 0010005
+#define   B576000 0010006
+#define   B921600 0010007
+#define  B1000000 0010010
+#define  B1152000 0010011
+#define  B1500000 0010012
+#define  B2000000 0010013
+#define  B2500000 0010014
+#define  B3000000 0010015
+#define  B3500000 0010016
+#define  B4000000 0010017
+#define CIBAUD	  002003600000	/* input baud rate */
+#define CMSPAR	  010000000000		/* mark or space (stick) parity */
+#define CRTSCTS	  020000000000		/* flow control */
+
+#define IBSHIFT	  16		/* Shift from CBAUD to CIBAUD */
+
+/* c_lflag bits */
+#define ISIG	0000001
+#define ICANON	0000002
+#define XCASE	0000004
+#define ECHO	0000010
+#define ECHOE	0000020
+#define ECHOK	0000040
+#define ECHONL	0000100
+#define NOFLSH	0000200
+#define TOSTOP	0000400
+#define ECHOCTL	0001000
+#define ECHOPRT	0002000
+#define ECHOKE	0004000
+#define FLUSHO	0010000
+#define PENDIN	0040000
+#define IEXTEN	0100000
+
+/* tcflow() and TCXONC use these */
+#define	TCOOFF		0
+#define	TCOON		1
+#define	TCIOFF		2
+#define	TCION		3
+
+/* tcflush() and TCFLSH use these */
+#define	TCIFLUSH	0
+#define	TCOFLUSH	1
+#define	TCIOFLUSH	2
+
+/* tcsetattr uses these */
+#define	TCSANOW		0
+#define	TCSADRAIN	1
+#define	TCSAFLUSH	2
+
+#endif
diff --git a/arch/s390/include/asm/termios.h b/arch/s390/include/asm/termios.h
new file mode 100644
index 00000000000..67f66278f53
--- /dev/null
+++ b/arch/s390/include/asm/termios.h
@@ -0,0 +1,67 @@
+/*
+ *  include/asm-s390/termios.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/termios.h"
+ */
+
+#ifndef _S390_TERMIOS_H
+#define _S390_TERMIOS_H
+
+#include <asm/termbits.h>
+#include <asm/ioctls.h>
+
+struct winsize {
+	unsigned short ws_row;
+	unsigned short ws_col;
+	unsigned short ws_xpixel;
+	unsigned short ws_ypixel;
+};
+
+#define NCC 8
+struct termio {
+	unsigned short c_iflag;		/* input mode flags */
+	unsigned short c_oflag;		/* output mode flags */
+	unsigned short c_cflag;		/* control mode flags */
+	unsigned short c_lflag;		/* local mode flags */
+	unsigned char c_line;		/* line discipline */
+	unsigned char c_cc[NCC];	/* control characters */
+};
+
+/* modem lines */
+#define TIOCM_LE	0x001
+#define TIOCM_DTR	0x002
+#define TIOCM_RTS	0x004
+#define TIOCM_ST	0x008
+#define TIOCM_SR	0x010
+#define TIOCM_CTS	0x020
+#define TIOCM_CAR	0x040
+#define TIOCM_RNG	0x080
+#define TIOCM_DSR	0x100
+#define TIOCM_CD	TIOCM_CAR
+#define TIOCM_RI	TIOCM_RNG
+#define TIOCM_OUT1	0x2000
+#define TIOCM_OUT2	0x4000
+#define TIOCM_LOOP	0x8000
+
+/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
+
+#ifdef __KERNEL__
+
+/*	intr=^C		quit=^\		erase=del	kill=^U
+	eof=^D		vtime=\0	vmin=\1		sxtc=\0
+	start=^Q	stop=^S		susp=^Z		eol=\0
+	reprint=^R	discard=^U	werase=^W	lnext=^V
+	eol2=\0
+*/
+#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
+
+#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios2))
+#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios2))
+
+#include <asm-generic/termios.h>
+
+#endif	/* __KERNEL__ */
+
+#endif	/* _S390_TERMIOS_H */
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
new file mode 100644
index 00000000000..de3fad60c68
--- /dev/null
+++ b/arch/s390/include/asm/thread_info.h
@@ -0,0 +1,122 @@
+/*
+ *  include/asm-s390/thread_info.h
+ *
+ *  S390 version
+ *    Copyright (C) IBM Corp. 2002,2006
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ */
+
+#ifndef _ASM_THREAD_INFO_H
+#define _ASM_THREAD_INFO_H
+
+#ifdef __KERNEL__
+
+/*
+ * Size of kernel stack for each process
+ */
+#ifndef __s390x__
+#ifndef __SMALL_STACK
+#define THREAD_ORDER 1
+#define ASYNC_ORDER  1
+#else
+#define THREAD_ORDER 0
+#define ASYNC_ORDER  0
+#endif
+#else /* __s390x__ */
+#ifndef __SMALL_STACK
+#define THREAD_ORDER 2
+#define ASYNC_ORDER  2
+#else
+#define THREAD_ORDER 1
+#define ASYNC_ORDER  1
+#endif
+#endif /* __s390x__ */
+
+#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER)
+#define ASYNC_SIZE  (PAGE_SIZE << ASYNC_ORDER)
+
+#ifndef __ASSEMBLY__
+#include <asm/processor.h>
+#include <asm/lowcore.h>
+
+/*
+ * low level task data that entry.S needs immediate access to
+ * - this struct should fit entirely inside of one cache line
+ * - this struct shares the supervisor stack pages
+ * - if the contents of this structure are changed, the assembly constants must also be changed
+ */
+struct thread_info {
+	struct task_struct	*task;		/* main task structure */
+	struct exec_domain	*exec_domain;	/* execution domain */
+	unsigned long		flags;		/* low level flags */
+	unsigned int		cpu;		/* current CPU */
+	int			preempt_count;	/* 0 => preemptable, <0 => BUG */
+	struct restart_block	restart_block;
+};
+
+/*
+ * macros/functions for gaining access to the thread information structure
+ */
+#define INIT_THREAD_INFO(tsk)			\
+{						\
+	.task		= &tsk,			\
+	.exec_domain	= &default_exec_domain,	\
+	.flags		= 0,			\
+	.cpu		= 0,			\
+	.preempt_count	= 1,			\
+	.restart_block	= {			\
+		.fn = do_no_restart_syscall,	\
+	},					\
+}
+
+#define init_thread_info	(init_thread_union.thread_info)
+#define init_stack		(init_thread_union.stack)
+
+/* how to get the thread information struct from C */
+static inline struct thread_info *current_thread_info(void)
+{
+	return (struct thread_info *)((*(unsigned long *) __LC_KERNEL_STACK)-THREAD_SIZE);
+}
+
+#define THREAD_SIZE_ORDER THREAD_ORDER
+
+#endif
+
+/*
+ * thread information flags bit numbers
+ */
+#define TIF_SYSCALL_TRACE	0	/* syscall trace active */
+#define TIF_NOTIFY_RESUME	1	/* callback before returning to user */
+#define TIF_SIGPENDING		2	/* signal pending */
+#define TIF_NEED_RESCHED	3	/* rescheduling necessary */
+#define TIF_RESTART_SVC		4	/* restart svc with new svc number */
+#define TIF_SYSCALL_AUDIT	5	/* syscall auditing active */
+#define TIF_SINGLE_STEP		6	/* deliver sigtrap on return to user */
+#define TIF_MCCK_PENDING	7	/* machine check handling is pending */
+#define TIF_USEDFPU		16	/* FPU was used by this task this quantum (SMP) */
+#define TIF_POLLING_NRFLAG	17	/* true if poll_idle() is polling 
+					   TIF_NEED_RESCHED */
+#define TIF_31BIT		18	/* 32bit process */ 
+#define TIF_MEMDIE		19
+#define TIF_RESTORE_SIGMASK	20	/* restore signal mask in do_signal() */
+#define TIF_FREEZE		21	/* thread is freezing for suspend */
+
+#define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
+#define _TIF_NOTIFY_RESUME	(1<<TIF_NOTIFY_RESUME)
+#define _TIF_RESTORE_SIGMASK	(1<<TIF_RESTORE_SIGMASK)
+#define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)
+#define _TIF_NEED_RESCHED	(1<<TIF_NEED_RESCHED)
+#define _TIF_RESTART_SVC	(1<<TIF_RESTART_SVC)
+#define _TIF_SYSCALL_AUDIT	(1<<TIF_SYSCALL_AUDIT)
+#define _TIF_SINGLE_STEP	(1<<TIF_SINGLE_STEP)
+#define _TIF_MCCK_PENDING	(1<<TIF_MCCK_PENDING)
+#define _TIF_USEDFPU		(1<<TIF_USEDFPU)
+#define _TIF_POLLING_NRFLAG	(1<<TIF_POLLING_NRFLAG)
+#define _TIF_31BIT		(1<<TIF_31BIT)
+#define _TIF_FREEZE		(1<<TIF_FREEZE)
+
+#endif /* __KERNEL__ */
+
+#define PREEMPT_ACTIVE		0x4000000
+
+#endif /* _ASM_THREAD_INFO_H */
diff --git a/arch/s390/include/asm/timer.h b/arch/s390/include/asm/timer.h
new file mode 100644
index 00000000000..d98d79e35cd
--- /dev/null
+++ b/arch/s390/include/asm/timer.h
@@ -0,0 +1,65 @@
+/*
+ *  include/asm-s390/timer.h
+ *
+ *  (C) Copyright IBM Corp. 2003,2006
+ *  Virtual CPU timer
+ *
+ *  Author: Jan Glauber (jang@de.ibm.com)
+ */
+
+#ifndef _ASM_S390_TIMER_H
+#define _ASM_S390_TIMER_H
+
+#ifdef __KERNEL__
+
+#include <linux/timer.h>
+
+#define VTIMER_MAX_SLICE (0x7ffffffffffff000LL)
+
+struct vtimer_list {
+	struct list_head entry;
+
+	int cpu;
+	__u64 expires;
+	__u64 interval;
+
+	spinlock_t lock;
+	unsigned long magic;
+
+	void (*function)(unsigned long);
+	unsigned long data;
+};
+
+/* the offset value will wrap after ca. 71 years */
+struct vtimer_queue {
+	struct list_head list;
+	spinlock_t lock;
+	__u64 to_expire;	  /* current event expire time */
+	__u64 offset;		  /* list offset to zero */
+	__u64 idle;		  /* temp var for idle */
+};
+
+extern void init_virt_timer(struct vtimer_list *timer);
+extern void add_virt_timer(void *new);
+extern void add_virt_timer_periodic(void *new);
+extern int mod_virt_timer(struct vtimer_list *timer, __u64 expires);
+extern int del_virt_timer(struct vtimer_list *timer);
+
+extern void init_cpu_vtimer(void);
+extern void vtime_init(void);
+
+#ifdef CONFIG_VIRT_TIMER
+
+extern void vtime_start_cpu_timer(void);
+extern void vtime_stop_cpu_timer(void);
+
+#else
+
+static inline void vtime_start_cpu_timer(void) { }
+static inline void vtime_stop_cpu_timer(void) { }
+
+#endif /* CONFIG_VIRT_TIMER */
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_S390_TIMER_H */
diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h
new file mode 100644
index 00000000000..d744c3d62de
--- /dev/null
+++ b/arch/s390/include/asm/timex.h
@@ -0,0 +1,88 @@
+/*
+ *  include/asm-s390/timex.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *
+ *  Derived from "include/asm-i386/timex.h"
+ *    Copyright (C) 1992, Linus Torvalds
+ */
+
+#ifndef _ASM_S390_TIMEX_H
+#define _ASM_S390_TIMEX_H
+
+/* Inline functions for clock register access. */
+static inline int set_clock(__u64 time)
+{
+	int cc;
+
+	asm volatile(
+		"   sck   0(%2)\n"
+		"   ipm   %0\n"
+		"   srl   %0,28\n"
+		: "=d" (cc) : "m" (time), "a" (&time) : "cc");
+	return cc;
+}
+
+static inline int store_clock(__u64 *time)
+{
+	int cc;
+
+	asm volatile(
+		"   stck  0(%2)\n"
+		"   ipm   %0\n"
+		"   srl   %0,28\n"
+		: "=d" (cc), "=m" (*time) : "a" (time) : "cc");
+	return cc;
+}
+
+static inline void set_clock_comparator(__u64 time)
+{
+	asm volatile("sckc 0(%1)" : : "m" (time), "a" (&time));
+}
+
+static inline void store_clock_comparator(__u64 *time)
+{
+	asm volatile("stckc 0(%1)" : "=m" (*time) : "a" (time));
+}
+
+#define CLOCK_TICK_RATE	1193180 /* Underlying HZ */
+
+typedef unsigned long long cycles_t;
+
+static inline unsigned long long get_clock (void)
+{
+	unsigned long long clk;
+
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+	asm volatile("stck %0" : "=Q" (clk) : : "cc");
+#else /* __GNUC__ */
+	asm volatile("stck 0(%1)" : "=m" (clk) : "a" (&clk) : "cc");
+#endif /* __GNUC__ */
+	return clk;
+}
+
+static inline unsigned long long get_clock_xt(void)
+{
+	unsigned char clk[16];
+
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+	asm volatile("stcke %0" : "=Q" (clk) : : "cc");
+#else /* __GNUC__ */
+	asm volatile("stcke 0(%1)" : "=m" (clk)
+				   : "a" (clk) : "cc");
+#endif /* __GNUC__ */
+
+	return *((unsigned long long *)&clk[1]);
+}
+
+static inline cycles_t get_cycles(void)
+{
+	return (cycles_t) get_clock() >> 2;
+}
+
+int get_sync_clock(unsigned long long *clock);
+void init_cpu_timer(void);
+unsigned long long monotonic_clock(void);
+
+#endif
diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h
new file mode 100644
index 00000000000..3d8a96d39d9
--- /dev/null
+++ b/arch/s390/include/asm/tlb.h
@@ -0,0 +1,156 @@
+#ifndef _S390_TLB_H
+#define _S390_TLB_H
+
+/*
+ * TLB flushing on s390 is complicated. The following requirement
+ * from the principles of operation is the most arduous:
+ *
+ * "A valid table entry must not be changed while it is attached
+ * to any CPU and may be used for translation by that CPU except to
+ * (1) invalidate the entry by using INVALIDATE PAGE TABLE ENTRY,
+ * or INVALIDATE DAT TABLE ENTRY, (2) alter bits 56-63 of a page
+ * table entry, or (3) make a change by means of a COMPARE AND SWAP
+ * AND PURGE instruction that purges the TLB."
+ *
+ * The modification of a pte of an active mm struct therefore is
+ * a two step process: i) invalidate the pte, ii) store the new pte.
+ * This is true for the page protection bit as well.
+ * The only possible optimization is to flush at the beginning of
+ * a tlb_gather_mmu cycle if the mm_struct is currently not in use.
+ *
+ * Pages used for the page tables is a different story. FIXME: more
+ */
+
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <asm/processor.h>
+#include <asm/pgalloc.h>
+#include <asm/smp.h>
+#include <asm/tlbflush.h>
+
+#ifndef CONFIG_SMP
+#define TLB_NR_PTRS	1
+#else
+#define TLB_NR_PTRS	508
+#endif
+
+struct mmu_gather {
+	struct mm_struct *mm;
+	unsigned int fullmm;
+	unsigned int nr_ptes;
+	unsigned int nr_pxds;
+	void *array[TLB_NR_PTRS];
+};
+
+DECLARE_PER_CPU(struct mmu_gather, mmu_gathers);
+
+static inline struct mmu_gather *tlb_gather_mmu(struct mm_struct *mm,
+						unsigned int full_mm_flush)
+{
+	struct mmu_gather *tlb = &get_cpu_var(mmu_gathers);
+
+	tlb->mm = mm;
+	tlb->fullmm = full_mm_flush || (num_online_cpus() == 1) ||
+		(atomic_read(&mm->mm_users) <= 1 && mm == current->active_mm);
+	tlb->nr_ptes = 0;
+	tlb->nr_pxds = TLB_NR_PTRS;
+	if (tlb->fullmm)
+		__tlb_flush_mm(mm);
+	return tlb;
+}
+
+static inline void tlb_flush_mmu(struct mmu_gather *tlb,
+				 unsigned long start, unsigned long end)
+{
+	if (!tlb->fullmm && (tlb->nr_ptes > 0 || tlb->nr_pxds < TLB_NR_PTRS))
+		__tlb_flush_mm(tlb->mm);
+	while (tlb->nr_ptes > 0)
+		pte_free(tlb->mm, tlb->array[--tlb->nr_ptes]);
+	while (tlb->nr_pxds < TLB_NR_PTRS)
+		/* pgd_free frees the pointer as region or segment table */
+		pgd_free(tlb->mm, tlb->array[tlb->nr_pxds++]);
+}
+
+static inline void tlb_finish_mmu(struct mmu_gather *tlb,
+				  unsigned long start, unsigned long end)
+{
+	tlb_flush_mmu(tlb, start, end);
+
+	/* keep the page table cache within bounds */
+	check_pgt_cache();
+
+	put_cpu_var(mmu_gathers);
+}
+
+/*
+ * Release the page cache reference for a pte removed by
+ * tlb_ptep_clear_flush. In both flush modes the tlb fo a page cache page
+ * has already been freed, so just do free_page_and_swap_cache.
+ */
+static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page)
+{
+	free_page_and_swap_cache(page);
+}
+
+/*
+ * pte_free_tlb frees a pte table and clears the CRSTE for the
+ * page table from the tlb.
+ */
+static inline void pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte)
+{
+	if (!tlb->fullmm) {
+		tlb->array[tlb->nr_ptes++] = pte;
+		if (tlb->nr_ptes >= tlb->nr_pxds)
+			tlb_flush_mmu(tlb, 0, 0);
+	} else
+		pte_free(tlb->mm, pte);
+}
+
+/*
+ * pmd_free_tlb frees a pmd table and clears the CRSTE for the
+ * segment table entry from the tlb.
+ * If the mm uses a two level page table the single pmd is freed
+ * as the pgd. pmd_free_tlb checks the asce_limit against 2GB
+ * to avoid the double free of the pmd in this case.
+ */
+static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
+{
+#ifdef __s390x__
+	if (tlb->mm->context.asce_limit <= (1UL << 31))
+		return;
+	if (!tlb->fullmm) {
+		tlb->array[--tlb->nr_pxds] = pmd;
+		if (tlb->nr_ptes >= tlb->nr_pxds)
+			tlb_flush_mmu(tlb, 0, 0);
+	} else
+		pmd_free(tlb->mm, pmd);
+#endif
+}
+
+/*
+ * pud_free_tlb frees a pud table and clears the CRSTE for the
+ * region third table entry from the tlb.
+ * If the mm uses a three level page table the single pud is freed
+ * as the pgd. pud_free_tlb checks the asce_limit against 4TB
+ * to avoid the double free of the pud in this case.
+ */
+static inline void pud_free_tlb(struct mmu_gather *tlb, pud_t *pud)
+{
+#ifdef __s390x__
+	if (tlb->mm->context.asce_limit <= (1UL << 42))
+		return;
+	if (!tlb->fullmm) {
+		tlb->array[--tlb->nr_pxds] = pud;
+		if (tlb->nr_ptes >= tlb->nr_pxds)
+			tlb_flush_mmu(tlb, 0, 0);
+	} else
+		pud_free(tlb->mm, pud);
+#endif
+}
+
+#define tlb_start_vma(tlb, vma)			do { } while (0)
+#define tlb_end_vma(tlb, vma)			do { } while (0)
+#define tlb_remove_tlb_entry(tlb, ptep, addr)	do { } while (0)
+#define tlb_migrate_finish(mm)			do { } while (0)
+
+#endif /* _S390_TLB_H */
diff --git a/arch/s390/include/asm/tlbflush.h b/arch/s390/include/asm/tlbflush.h
new file mode 100644
index 00000000000..d60394b9745
--- /dev/null
+++ b/arch/s390/include/asm/tlbflush.h
@@ -0,0 +1,140 @@
+#ifndef _S390_TLBFLUSH_H
+#define _S390_TLBFLUSH_H
+
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <asm/processor.h>
+#include <asm/pgalloc.h>
+
+/*
+ * Flush all tlb entries on the local cpu.
+ */
+static inline void __tlb_flush_local(void)
+{
+	asm volatile("ptlb" : : : "memory");
+}
+
+#ifdef CONFIG_SMP
+/*
+ * Flush all tlb entries on all cpus.
+ */
+void smp_ptlb_all(void);
+
+static inline void __tlb_flush_global(void)
+{
+	register unsigned long reg2 asm("2");
+	register unsigned long reg3 asm("3");
+	register unsigned long reg4 asm("4");
+	long dummy;
+
+#ifndef __s390x__
+	if (!MACHINE_HAS_CSP) {
+		smp_ptlb_all();
+		return;
+	}
+#endif /* __s390x__ */
+
+	dummy = 0;
+	reg2 = reg3 = 0;
+	reg4 = ((unsigned long) &dummy) + 1;
+	asm volatile(
+		"	csp	%0,%2"
+		: : "d" (reg2), "d" (reg3), "d" (reg4), "m" (dummy) : "cc" );
+}
+
+static inline void __tlb_flush_full(struct mm_struct *mm)
+{
+	cpumask_t local_cpumask;
+
+	preempt_disable();
+	/*
+	 * If the process only ran on the local cpu, do a local flush.
+	 */
+	local_cpumask = cpumask_of_cpu(smp_processor_id());
+	if (cpus_equal(mm->cpu_vm_mask, local_cpumask))
+		__tlb_flush_local();
+	else
+		__tlb_flush_global();
+	preempt_enable();
+}
+#else
+#define __tlb_flush_full(mm)	__tlb_flush_local()
+#endif
+
+/*
+ * Flush all tlb entries of a page table on all cpus.
+ */
+static inline void __tlb_flush_idte(unsigned long asce)
+{
+	asm volatile(
+		"	.insn	rrf,0xb98e0000,0,%0,%1,0"
+		: : "a" (2048), "a" (asce) : "cc" );
+}
+
+static inline void __tlb_flush_mm(struct mm_struct * mm)
+{
+	if (unlikely(cpus_empty(mm->cpu_vm_mask)))
+		return;
+	/*
+	 * If the machine has IDTE we prefer to do a per mm flush
+	 * on all cpus instead of doing a local flush if the mm
+	 * only ran on the local cpu.
+	 */
+	if (MACHINE_HAS_IDTE) {
+		if (mm->context.noexec)
+			__tlb_flush_idte((unsigned long)
+					 get_shadow_table(mm->pgd) |
+					 mm->context.asce_bits);
+		__tlb_flush_idte((unsigned long) mm->pgd |
+				 mm->context.asce_bits);
+		return;
+	}
+	__tlb_flush_full(mm);
+}
+
+static inline void __tlb_flush_mm_cond(struct mm_struct * mm)
+{
+	if (atomic_read(&mm->mm_users) <= 1 && mm == current->active_mm)
+		__tlb_flush_mm(mm);
+}
+
+/*
+ * TLB flushing:
+ *  flush_tlb() - flushes the current mm struct TLBs
+ *  flush_tlb_all() - flushes all processes TLBs
+ *  flush_tlb_mm(mm) - flushes the specified mm context TLB's
+ *  flush_tlb_page(vma, vmaddr) - flushes one page
+ *  flush_tlb_range(vma, start, end) - flushes a range of pages
+ *  flush_tlb_kernel_range(start, end) - flushes a range of kernel pages
+ */
+
+/*
+ * flush_tlb_mm goes together with ptep_set_wrprotect for the
+ * copy_page_range operation and flush_tlb_range is related to
+ * ptep_get_and_clear for change_protection. ptep_set_wrprotect and
+ * ptep_get_and_clear do not flush the TLBs directly if the mm has
+ * only one user. At the end of the update the flush_tlb_mm and
+ * flush_tlb_range functions need to do the flush.
+ */
+#define flush_tlb()				do { } while (0)
+#define flush_tlb_all()				do { } while (0)
+#define flush_tlb_page(vma, addr)		do { } while (0)
+
+static inline void flush_tlb_mm(struct mm_struct *mm)
+{
+	__tlb_flush_mm_cond(mm);
+}
+
+static inline void flush_tlb_range(struct vm_area_struct *vma,
+				   unsigned long start, unsigned long end)
+{
+	__tlb_flush_mm_cond(vma->vm_mm);
+}
+
+static inline void flush_tlb_kernel_range(unsigned long start,
+					  unsigned long end)
+{
+	__tlb_flush_mm(&init_mm);
+}
+
+#endif /* _S390_TLBFLUSH_H */
diff --git a/arch/s390/include/asm/todclk.h b/arch/s390/include/asm/todclk.h
new file mode 100644
index 00000000000..c7f62055488
--- /dev/null
+++ b/arch/s390/include/asm/todclk.h
@@ -0,0 +1,23 @@
+/*
+ * File...........: linux/include/asm/todclk.h
+ * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
+ * Bugreports.to..: <Linux390@de.ibm.com>
+ * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
+ *
+ * History of changes (starts July 2000)
+ */
+
+#ifndef __ASM_TODCLK_H
+#define __ASM_TODCLK_H
+
+#ifdef __KERNEL__
+
+#define TOD_uSEC (0x1000ULL)
+#define TOD_mSEC (1000 * TOD_uSEC)
+#define TOD_SEC (1000 * TOD_mSEC)
+#define TOD_MIN (60 * TOD_SEC)
+#define TOD_HOUR (60 * TOD_MIN)
+
+#endif
+
+#endif
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h
new file mode 100644
index 00000000000..d96c9164345
--- /dev/null
+++ b/arch/s390/include/asm/topology.h
@@ -0,0 +1,33 @@
+#ifndef _ASM_S390_TOPOLOGY_H
+#define _ASM_S390_TOPOLOGY_H
+
+#include <linux/cpumask.h>
+
+#define mc_capable()	(1)
+
+cpumask_t cpu_coregroup_map(unsigned int cpu);
+
+extern cpumask_t cpu_core_map[NR_CPUS];
+
+#define topology_core_siblings(cpu)	(cpu_core_map[cpu])
+
+int topology_set_cpu_management(int fc);
+void topology_schedule_update(void);
+
+#define POLARIZATION_UNKNWN	(-1)
+#define POLARIZATION_HRZ	(0)
+#define POLARIZATION_VL		(1)
+#define POLARIZATION_VM		(2)
+#define POLARIZATION_VH		(3)
+
+#ifdef CONFIG_SMP
+void s390_init_cpu_topology(void);
+#else
+static inline void s390_init_cpu_topology(void)
+{
+};
+#endif
+
+#include <asm-generic/topology.h>
+
+#endif /* _ASM_S390_TOPOLOGY_H */
diff --git a/arch/s390/include/asm/types.h b/arch/s390/include/asm/types.h
new file mode 100644
index 00000000000..41c54765613
--- /dev/null
+++ b/arch/s390/include/asm/types.h
@@ -0,0 +1,63 @@
+/*
+ *  include/asm-s390/types.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/types.h"
+ */
+
+#ifndef _S390_TYPES_H
+#define _S390_TYPES_H
+
+#ifndef __s390x__
+# include <asm-generic/int-ll64.h>
+#else
+# include <asm-generic/int-l64.h>
+#endif
+
+#ifndef __ASSEMBLY__
+
+typedef unsigned short umode_t;
+
+/* A address type so that arithmetic can be done on it & it can be upgraded to
+   64 bit when necessary 
+*/
+typedef unsigned long addr_t; 
+typedef __signed__ long saddr_t;
+
+#endif /* __ASSEMBLY__ */
+
+/*
+ * These aren't exported outside the kernel to avoid name space clashes
+ */
+#ifdef __KERNEL__
+
+#ifndef __s390x__
+#define BITS_PER_LONG 32
+#else
+#define BITS_PER_LONG 64
+#endif
+
+#ifndef __ASSEMBLY__
+
+typedef u64 dma64_addr_t;
+#ifdef __s390x__
+/* DMA addresses come in 32-bit and 64-bit flavours. */
+typedef u64 dma_addr_t;
+#else
+typedef u32 dma_addr_t;
+#endif
+
+#ifndef __s390x__
+typedef union {
+	unsigned long long pair;
+	struct {
+		unsigned long even;
+		unsigned long odd;
+	} subreg;
+} register_pair;
+
+#endif /* ! __s390x__   */
+#endif /* __ASSEMBLY__  */
+#endif /* __KERNEL__    */
+#endif /* _S390_TYPES_H */
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
new file mode 100644
index 00000000000..0235970278f
--- /dev/null
+++ b/arch/s390/include/asm/uaccess.h
@@ -0,0 +1,363 @@
+/*
+ *  include/asm-s390/uaccess.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Hartmut Penner (hp@de.ibm.com),
+ *               Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/uaccess.h"
+ */
+#ifndef __S390_UACCESS_H
+#define __S390_UACCESS_H
+
+/*
+ * User space memory access functions
+ */
+#include <linux/sched.h>
+#include <linux/errno.h>
+
+#define VERIFY_READ     0
+#define VERIFY_WRITE    1
+
+
+/*
+ * The fs value determines whether argument validity checking should be
+ * performed or not.  If get_fs() == USER_DS, checking is performed, with
+ * get_fs() == KERNEL_DS, checking is bypassed.
+ *
+ * For historical reasons, these macros are grossly misnamed.
+ */
+
+#define MAKE_MM_SEG(a)  ((mm_segment_t) { (a) })
+
+
+#define KERNEL_DS       MAKE_MM_SEG(0)
+#define USER_DS         MAKE_MM_SEG(1)
+
+#define get_ds()        (KERNEL_DS)
+#define get_fs()        (current->thread.mm_segment)
+
+#define set_fs(x) \
+({									\
+	unsigned long __pto;						\
+	current->thread.mm_segment = (x);				\
+	__pto = current->thread.mm_segment.ar4 ?			\
+		S390_lowcore.user_asce : S390_lowcore.kernel_asce;	\
+	__ctl_load(__pto, 7, 7);					\
+})
+
+#define segment_eq(a,b) ((a).ar4 == (b).ar4)
+
+
+static inline int __access_ok(const void __user *addr, unsigned long size)
+{
+	return 1;
+}
+#define access_ok(type,addr,size) __access_ok(addr,size)
+
+/*
+ * The exception table consists of pairs of addresses: the first is the
+ * address of an instruction that is allowed to fault, and the second is
+ * the address at which the program should continue.  No registers are
+ * modified, so it is entirely up to the continuation code to figure out
+ * what to do.
+ *
+ * All the routines below use bits of fixup code that are out of line
+ * with the main instruction path.  This means when everything is well,
+ * we don't even have to jump over them.  Further, they do not intrude
+ * on our cache or tlb entries.
+ */
+
+struct exception_table_entry
+{
+        unsigned long insn, fixup;
+};
+
+struct uaccess_ops {
+	size_t (*copy_from_user)(size_t, const void __user *, void *);
+	size_t (*copy_from_user_small)(size_t, const void __user *, void *);
+	size_t (*copy_to_user)(size_t, void __user *, const void *);
+	size_t (*copy_to_user_small)(size_t, void __user *, const void *);
+	size_t (*copy_in_user)(size_t, void __user *, const void __user *);
+	size_t (*clear_user)(size_t, void __user *);
+	size_t (*strnlen_user)(size_t, const char __user *);
+	size_t (*strncpy_from_user)(size_t, const char __user *, char *);
+	int (*futex_atomic_op)(int op, int __user *, int oparg, int *old);
+	int (*futex_atomic_cmpxchg)(int __user *, int old, int new);
+};
+
+extern struct uaccess_ops uaccess;
+extern struct uaccess_ops uaccess_std;
+extern struct uaccess_ops uaccess_mvcos;
+extern struct uaccess_ops uaccess_mvcos_switch;
+extern struct uaccess_ops uaccess_pt;
+
+static inline int __put_user_fn(size_t size, void __user *ptr, void *x)
+{
+	size = uaccess.copy_to_user_small(size, ptr, x);
+	return size ? -EFAULT : size;
+}
+
+static inline int __get_user_fn(size_t size, const void __user *ptr, void *x)
+{
+	size = uaccess.copy_from_user_small(size, ptr, x);
+	return size ? -EFAULT : size;
+}
+
+/*
+ * These are the main single-value transfer routines.  They automatically
+ * use the right size if we just have the right pointer type.
+ */
+#define __put_user(x, ptr) \
+({								\
+	__typeof__(*(ptr)) __x = (x);				\
+	int __pu_err = -EFAULT;					\
+        __chk_user_ptr(ptr);                                    \
+	switch (sizeof (*(ptr))) {				\
+	case 1:							\
+	case 2:							\
+	case 4:							\
+	case 8:							\
+		__pu_err = __put_user_fn(sizeof (*(ptr)),	\
+					 ptr, &__x);		\
+		break;						\
+	default:						\
+		__put_user_bad();				\
+		break;						\
+	 }							\
+	__pu_err;						\
+})
+
+#define put_user(x, ptr)					\
+({								\
+	might_sleep();						\
+	__put_user(x, ptr);					\
+})
+
+
+extern int __put_user_bad(void) __attribute__((noreturn));
+
+#define __get_user(x, ptr)					\
+({								\
+	int __gu_err = -EFAULT;					\
+	__chk_user_ptr(ptr);					\
+	switch (sizeof(*(ptr))) {				\
+	case 1: {						\
+		unsigned char __x;				\
+		__gu_err = __get_user_fn(sizeof (*(ptr)),	\
+					 ptr, &__x);		\
+		(x) = *(__force __typeof__(*(ptr)) *) &__x;	\
+		break;						\
+	};							\
+	case 2: {						\
+		unsigned short __x;				\
+		__gu_err = __get_user_fn(sizeof (*(ptr)),	\
+					 ptr, &__x);		\
+		(x) = *(__force __typeof__(*(ptr)) *) &__x;	\
+		break;						\
+	};							\
+	case 4: {						\
+		unsigned int __x;				\
+		__gu_err = __get_user_fn(sizeof (*(ptr)),	\
+					 ptr, &__x);		\
+		(x) = *(__force __typeof__(*(ptr)) *) &__x;	\
+		break;						\
+	};							\
+	case 8: {						\
+		unsigned long long __x;				\
+		__gu_err = __get_user_fn(sizeof (*(ptr)),	\
+					 ptr, &__x);		\
+		(x) = *(__force __typeof__(*(ptr)) *) &__x;	\
+		break;						\
+	};							\
+	default:						\
+		__get_user_bad();				\
+		break;						\
+	}							\
+	__gu_err;						\
+})
+
+#define get_user(x, ptr)					\
+({								\
+	might_sleep();						\
+	__get_user(x, ptr);					\
+})
+
+extern int __get_user_bad(void) __attribute__((noreturn));
+
+#define __put_user_unaligned __put_user
+#define __get_user_unaligned __get_user
+
+/**
+ * __copy_to_user: - Copy a block of data into user space, with less checking.
+ * @to:   Destination address, in user space.
+ * @from: Source address, in kernel space.
+ * @n:    Number of bytes to copy.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Copy data from kernel space to user space.  Caller must check
+ * the specified block with access_ok() before calling this function.
+ *
+ * Returns number of bytes that could not be copied.
+ * On success, this will be zero.
+ */
+static inline unsigned long __must_check
+__copy_to_user(void __user *to, const void *from, unsigned long n)
+{
+	if (__builtin_constant_p(n) && (n <= 256))
+		return uaccess.copy_to_user_small(n, to, from);
+	else
+		return uaccess.copy_to_user(n, to, from);
+}
+
+#define __copy_to_user_inatomic __copy_to_user
+#define __copy_from_user_inatomic __copy_from_user
+
+/**
+ * copy_to_user: - Copy a block of data into user space.
+ * @to:   Destination address, in user space.
+ * @from: Source address, in kernel space.
+ * @n:    Number of bytes to copy.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Copy data from kernel space to user space.
+ *
+ * Returns number of bytes that could not be copied.
+ * On success, this will be zero.
+ */
+static inline unsigned long __must_check
+copy_to_user(void __user *to, const void *from, unsigned long n)
+{
+	might_sleep();
+	if (access_ok(VERIFY_WRITE, to, n))
+		n = __copy_to_user(to, from, n);
+	return n;
+}
+
+/**
+ * __copy_from_user: - Copy a block of data from user space, with less checking.
+ * @to:   Destination address, in kernel space.
+ * @from: Source address, in user space.
+ * @n:    Number of bytes to copy.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Copy data from user space to kernel space.  Caller must check
+ * the specified block with access_ok() before calling this function.
+ *
+ * Returns number of bytes that could not be copied.
+ * On success, this will be zero.
+ *
+ * If some data could not be copied, this function will pad the copied
+ * data to the requested size using zero bytes.
+ */
+static inline unsigned long __must_check
+__copy_from_user(void *to, const void __user *from, unsigned long n)
+{
+	if (__builtin_constant_p(n) && (n <= 256))
+		return uaccess.copy_from_user_small(n, from, to);
+	else
+		return uaccess.copy_from_user(n, from, to);
+}
+
+/**
+ * copy_from_user: - Copy a block of data from user space.
+ * @to:   Destination address, in kernel space.
+ * @from: Source address, in user space.
+ * @n:    Number of bytes to copy.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Copy data from user space to kernel space.
+ *
+ * Returns number of bytes that could not be copied.
+ * On success, this will be zero.
+ *
+ * If some data could not be copied, this function will pad the copied
+ * data to the requested size using zero bytes.
+ */
+static inline unsigned long __must_check
+copy_from_user(void *to, const void __user *from, unsigned long n)
+{
+	might_sleep();
+	if (access_ok(VERIFY_READ, from, n))
+		n = __copy_from_user(to, from, n);
+	else
+		memset(to, 0, n);
+	return n;
+}
+
+static inline unsigned long __must_check
+__copy_in_user(void __user *to, const void __user *from, unsigned long n)
+{
+	return uaccess.copy_in_user(n, to, from);
+}
+
+static inline unsigned long __must_check
+copy_in_user(void __user *to, const void __user *from, unsigned long n)
+{
+	might_sleep();
+	if (__access_ok(from,n) && __access_ok(to,n))
+		n = __copy_in_user(to, from, n);
+	return n;
+}
+
+/*
+ * Copy a null terminated string from userspace.
+ */
+static inline long __must_check
+strncpy_from_user(char *dst, const char __user *src, long count)
+{
+        long res = -EFAULT;
+        might_sleep();
+        if (access_ok(VERIFY_READ, src, 1))
+		res = uaccess.strncpy_from_user(count, src, dst);
+        return res;
+}
+
+static inline unsigned long
+strnlen_user(const char __user * src, unsigned long n)
+{
+	might_sleep();
+	return uaccess.strnlen_user(n, src);
+}
+
+/**
+ * strlen_user: - Get the size of a string in user space.
+ * @str: The string to measure.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Get the size of a NUL-terminated string in user space.
+ *
+ * Returns the size of the string INCLUDING the terminating NUL.
+ * On exception, returns 0.
+ *
+ * If there is a limit on the length of a valid string, you may wish to
+ * consider using strnlen_user() instead.
+ */
+#define strlen_user(str) strnlen_user(str, ~0UL)
+
+/*
+ * Zero Userspace
+ */
+
+static inline unsigned long __must_check
+__clear_user(void __user *to, unsigned long n)
+{
+	return uaccess.clear_user(n, to);
+}
+
+static inline unsigned long __must_check
+clear_user(void __user *to, unsigned long n)
+{
+	might_sleep();
+	if (access_ok(VERIFY_WRITE, to, n))
+		n = uaccess.clear_user(n, to);
+	return n;
+}
+
+#endif /* __S390_UACCESS_H */
diff --git a/arch/s390/include/asm/ucontext.h b/arch/s390/include/asm/ucontext.h
new file mode 100644
index 00000000000..d69bec0b03f
--- /dev/null
+++ b/arch/s390/include/asm/ucontext.h
@@ -0,0 +1,20 @@
+/*
+ *  include/asm-s390/ucontext.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/ucontext.h"
+ */
+
+#ifndef _ASM_S390_UCONTEXT_H
+#define _ASM_S390_UCONTEXT_H
+
+struct ucontext {
+	unsigned long	  uc_flags;
+	struct ucontext  *uc_link;
+	stack_t		  uc_stack;
+	_sigregs          uc_mcontext;
+	sigset_t	  uc_sigmask;	/* mask last for extensibility */
+};
+
+#endif /* !_ASM_S390_UCONTEXT_H */
diff --git a/arch/s390/include/asm/unaligned.h b/arch/s390/include/asm/unaligned.h
new file mode 100644
index 00000000000..da9627afe5d
--- /dev/null
+++ b/arch/s390/include/asm/unaligned.h
@@ -0,0 +1,13 @@
+#ifndef _ASM_S390_UNALIGNED_H
+#define _ASM_S390_UNALIGNED_H
+
+/*
+ * The S390 can do unaligned accesses itself. 
+ */
+#include <linux/unaligned/access_ok.h>
+#include <linux/unaligned/generic.h>
+
+#define get_unaligned	__get_unaligned_be
+#define put_unaligned	__put_unaligned_be
+
+#endif /* _ASM_S390_UNALIGNED_H */
diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h
new file mode 100644
index 00000000000..c8ad350d144
--- /dev/null
+++ b/arch/s390/include/asm/unistd.h
@@ -0,0 +1,411 @@
+/*
+ *  include/asm-s390/unistd.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/unistd.h"
+ */
+
+#ifndef _ASM_S390_UNISTD_H_
+#define _ASM_S390_UNISTD_H_
+
+/*
+ * This file contains the system call numbers.
+ */
+
+#define __NR_exit                 1
+#define __NR_fork                 2
+#define __NR_read                 3
+#define __NR_write                4
+#define __NR_open                 5
+#define __NR_close                6
+#define __NR_restart_syscall	  7
+#define __NR_creat                8
+#define __NR_link                 9
+#define __NR_unlink              10
+#define __NR_execve              11
+#define __NR_chdir               12
+#define __NR_mknod               14
+#define __NR_chmod               15
+#define __NR_lseek               19
+#define __NR_getpid              20
+#define __NR_mount               21
+#define __NR_umount              22
+#define __NR_ptrace              26
+#define __NR_alarm               27
+#define __NR_pause               29
+#define __NR_utime               30
+#define __NR_access              33
+#define __NR_nice                34
+#define __NR_sync                36
+#define __NR_kill                37
+#define __NR_rename              38
+#define __NR_mkdir               39
+#define __NR_rmdir               40
+#define __NR_dup                 41
+#define __NR_pipe                42
+#define __NR_times               43
+#define __NR_brk                 45
+#define __NR_signal              48
+#define __NR_acct                51
+#define __NR_umount2             52
+#define __NR_ioctl               54
+#define __NR_fcntl               55
+#define __NR_setpgid             57
+#define __NR_umask               60
+#define __NR_chroot              61
+#define __NR_ustat               62
+#define __NR_dup2                63
+#define __NR_getppid             64
+#define __NR_getpgrp             65
+#define __NR_setsid              66
+#define __NR_sigaction           67
+#define __NR_sigsuspend          72
+#define __NR_sigpending          73
+#define __NR_sethostname         74
+#define __NR_setrlimit           75
+#define __NR_getrusage           77
+#define __NR_gettimeofday        78
+#define __NR_settimeofday        79
+#define __NR_symlink             83
+#define __NR_readlink            85
+#define __NR_uselib              86
+#define __NR_swapon              87
+#define __NR_reboot              88
+#define __NR_readdir             89
+#define __NR_mmap                90
+#define __NR_munmap              91
+#define __NR_truncate            92
+#define __NR_ftruncate           93
+#define __NR_fchmod              94
+#define __NR_getpriority         96
+#define __NR_setpriority         97
+#define __NR_statfs              99
+#define __NR_fstatfs            100
+#define __NR_socketcall         102
+#define __NR_syslog             103
+#define __NR_setitimer          104
+#define __NR_getitimer          105
+#define __NR_stat               106
+#define __NR_lstat              107
+#define __NR_fstat              108
+#define __NR_lookup_dcookie     110
+#define __NR_vhangup            111
+#define __NR_idle               112
+#define __NR_wait4              114
+#define __NR_swapoff            115
+#define __NR_sysinfo            116
+#define __NR_ipc                117
+#define __NR_fsync              118
+#define __NR_sigreturn          119
+#define __NR_clone              120
+#define __NR_setdomainname      121
+#define __NR_uname              122
+#define __NR_adjtimex           124
+#define __NR_mprotect           125
+#define __NR_sigprocmask        126
+#define __NR_create_module      127
+#define __NR_init_module        128
+#define __NR_delete_module      129
+#define __NR_get_kernel_syms    130
+#define __NR_quotactl           131
+#define __NR_getpgid            132
+#define __NR_fchdir             133
+#define __NR_bdflush            134
+#define __NR_sysfs              135
+#define __NR_personality        136
+#define __NR_afs_syscall        137 /* Syscall for Andrew File System */
+#define __NR_getdents           141
+#define __NR_flock              143
+#define __NR_msync              144
+#define __NR_readv              145
+#define __NR_writev             146
+#define __NR_getsid             147
+#define __NR_fdatasync          148
+#define __NR__sysctl            149
+#define __NR_mlock              150
+#define __NR_munlock            151
+#define __NR_mlockall           152
+#define __NR_munlockall         153
+#define __NR_sched_setparam             154
+#define __NR_sched_getparam             155
+#define __NR_sched_setscheduler         156
+#define __NR_sched_getscheduler         157
+#define __NR_sched_yield                158
+#define __NR_sched_get_priority_max     159
+#define __NR_sched_get_priority_min     160
+#define __NR_sched_rr_get_interval      161
+#define __NR_nanosleep          162
+#define __NR_mremap             163
+#define __NR_query_module       167
+#define __NR_poll               168
+#define __NR_nfsservctl         169
+#define __NR_prctl              172
+#define __NR_rt_sigreturn       173
+#define __NR_rt_sigaction       174
+#define __NR_rt_sigprocmask     175
+#define __NR_rt_sigpending      176
+#define __NR_rt_sigtimedwait    177
+#define __NR_rt_sigqueueinfo    178
+#define __NR_rt_sigsuspend      179
+#define __NR_pread64            180
+#define __NR_pwrite64           181
+#define __NR_getcwd             183
+#define __NR_capget             184
+#define __NR_capset             185
+#define __NR_sigaltstack        186
+#define __NR_sendfile           187
+#define __NR_getpmsg		188
+#define __NR_putpmsg		189
+#define __NR_vfork		190
+#define __NR_pivot_root         217
+#define __NR_mincore            218
+#define __NR_madvise            219
+#define __NR_getdents64		220
+#define __NR_readahead		222
+#define __NR_setxattr		224
+#define __NR_lsetxattr		225
+#define __NR_fsetxattr		226
+#define __NR_getxattr		227
+#define __NR_lgetxattr		228
+#define __NR_fgetxattr		229
+#define __NR_listxattr		230
+#define __NR_llistxattr		231
+#define __NR_flistxattr		232
+#define __NR_removexattr	233
+#define __NR_lremovexattr	234
+#define __NR_fremovexattr	235
+#define __NR_gettid		236
+#define __NR_tkill		237
+#define __NR_futex		238
+#define __NR_sched_setaffinity	239
+#define __NR_sched_getaffinity	240
+#define __NR_tgkill		241
+/* Number 242 is reserved for tux */
+#define __NR_io_setup		243
+#define __NR_io_destroy		244
+#define __NR_io_getevents	245
+#define __NR_io_submit		246
+#define __NR_io_cancel		247
+#define __NR_exit_group		248
+#define __NR_epoll_create	249
+#define __NR_epoll_ctl		250
+#define __NR_epoll_wait		251
+#define __NR_set_tid_address	252
+#define __NR_fadvise64		253
+#define __NR_timer_create	254
+#define __NR_timer_settime	(__NR_timer_create+1)
+#define __NR_timer_gettime	(__NR_timer_create+2)
+#define __NR_timer_getoverrun	(__NR_timer_create+3)
+#define __NR_timer_delete	(__NR_timer_create+4)
+#define __NR_clock_settime	(__NR_timer_create+5)
+#define __NR_clock_gettime	(__NR_timer_create+6)
+#define __NR_clock_getres	(__NR_timer_create+7)
+#define __NR_clock_nanosleep	(__NR_timer_create+8)
+/* Number 263 is reserved for vserver */
+#define __NR_statfs64		265
+#define __NR_fstatfs64		266
+#define __NR_remap_file_pages	267
+/* Number 268 is reserved for new sys_mbind */
+/* Number 269 is reserved for new sys_get_mempolicy */
+/* Number 270 is reserved for new sys_set_mempolicy */
+#define __NR_mq_open		271
+#define __NR_mq_unlink		272
+#define __NR_mq_timedsend	273
+#define __NR_mq_timedreceive	274
+#define __NR_mq_notify		275
+#define __NR_mq_getsetattr	276
+#define __NR_kexec_load		277
+#define __NR_add_key		278
+#define __NR_request_key	279
+#define __NR_keyctl		280
+#define __NR_waitid		281
+#define __NR_ioprio_set		282
+#define __NR_ioprio_get		283
+#define __NR_inotify_init	284
+#define __NR_inotify_add_watch	285
+#define __NR_inotify_rm_watch	286
+/* Number 287 is reserved for new sys_migrate_pages */
+#define __NR_openat		288
+#define __NR_mkdirat		289
+#define __NR_mknodat		290
+#define __NR_fchownat		291
+#define __NR_futimesat		292
+#define __NR_unlinkat		294
+#define __NR_renameat		295
+#define __NR_linkat		296
+#define __NR_symlinkat		297
+#define __NR_readlinkat		298
+#define __NR_fchmodat		299
+#define __NR_faccessat		300
+#define __NR_pselect6		301
+#define __NR_ppoll		302
+#define __NR_unshare		303
+#define __NR_set_robust_list	304
+#define __NR_get_robust_list	305
+#define __NR_splice		306
+#define __NR_sync_file_range	307
+#define __NR_tee		308
+#define __NR_vmsplice		309
+/* Number 310 is reserved for new sys_move_pages */
+#define __NR_getcpu		311
+#define __NR_epoll_pwait	312
+#define __NR_utimes		313
+#define __NR_fallocate		314
+#define __NR_utimensat		315
+#define __NR_signalfd		316
+#define __NR_timerfd		317
+#define __NR_eventfd		318
+#define __NR_timerfd_create	319
+#define __NR_timerfd_settime	320
+#define __NR_timerfd_gettime	321
+#define __NR_signalfd4		322
+#define __NR_eventfd2		323
+#define __NR_inotify_init1	324
+#define __NR_pipe2		325
+#define __NR_dup3		326
+#define __NR_epoll_create1	327
+#define NR_syscalls 328
+
+/* 
+ * There are some system calls that are not present on 64 bit, some
+ * have a different name although they do the same (e.g. __NR_chown32
+ * is __NR_chown on 64 bit).
+ */
+#ifndef __s390x__
+
+#define __NR_time		 13
+#define __NR_lchown		 16
+#define __NR_setuid		 23
+#define __NR_getuid		 24
+#define __NR_stime		 25
+#define __NR_setgid		 46
+#define __NR_getgid		 47
+#define __NR_geteuid		 49
+#define __NR_getegid		 50
+#define __NR_setreuid		 70
+#define __NR_setregid		 71
+#define __NR_getrlimit		 76
+#define __NR_getgroups		 80
+#define __NR_setgroups		 81
+#define __NR_fchown		 95
+#define __NR_ioperm		101
+#define __NR_setfsuid		138
+#define __NR_setfsgid		139
+#define __NR__llseek		140
+#define __NR__newselect 	142
+#define __NR_setresuid		164
+#define __NR_getresuid		165
+#define __NR_setresgid		170
+#define __NR_getresgid		171
+#define __NR_chown		182
+#define __NR_ugetrlimit		191	/* SuS compliant getrlimit */
+#define __NR_mmap2		192
+#define __NR_truncate64		193
+#define __NR_ftruncate64	194
+#define __NR_stat64		195
+#define __NR_lstat64		196
+#define __NR_fstat64		197
+#define __NR_lchown32		198
+#define __NR_getuid32		199
+#define __NR_getgid32		200
+#define __NR_geteuid32		201
+#define __NR_getegid32		202
+#define __NR_setreuid32		203
+#define __NR_setregid32		204
+#define __NR_getgroups32	205
+#define __NR_setgroups32	206
+#define __NR_fchown32		207
+#define __NR_setresuid32	208
+#define __NR_getresuid32	209
+#define __NR_setresgid32	210
+#define __NR_getresgid32	211
+#define __NR_chown32		212
+#define __NR_setuid32		213
+#define __NR_setgid32		214
+#define __NR_setfsuid32		215
+#define __NR_setfsgid32		216
+#define __NR_fcntl64		221
+#define __NR_sendfile64		223
+#define __NR_fadvise64_64	264
+#define __NR_fstatat64		293
+
+#else
+
+#define __NR_select		142
+#define __NR_getrlimit		191	/* SuS compliant getrlimit */
+#define __NR_lchown  		198
+#define __NR_getuid  		199
+#define __NR_getgid  		200
+#define __NR_geteuid  		201
+#define __NR_getegid  		202
+#define __NR_setreuid  		203
+#define __NR_setregid  		204
+#define __NR_getgroups  	205
+#define __NR_setgroups  	206
+#define __NR_fchown  		207
+#define __NR_setresuid  	208
+#define __NR_getresuid  	209
+#define __NR_setresgid  	210
+#define __NR_getresgid  	211
+#define __NR_chown  		212
+#define __NR_setuid  		213
+#define __NR_setgid  		214
+#define __NR_setfsuid  		215
+#define __NR_setfsgid  		216
+#define __NR_newfstatat		293
+
+#endif
+
+#ifdef __KERNEL__
+
+#ifndef CONFIG_64BIT
+#define __IGNORE_select
+#else
+#define __IGNORE_time
+#endif
+
+/* Ignore NUMA system calls. Not wired up on s390. */
+#define __IGNORE_mbind
+#define __IGNORE_get_mempolicy
+#define __IGNORE_set_mempolicy
+#define __IGNORE_migrate_pages
+#define __IGNORE_move_pages
+
+#define __ARCH_WANT_IPC_PARSE_VERSION
+#define __ARCH_WANT_OLD_READDIR
+#define __ARCH_WANT_SYS_ALARM
+#define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_PAUSE
+#define __ARCH_WANT_SYS_SIGNAL
+#define __ARCH_WANT_SYS_UTIME
+#define __ARCH_WANT_SYS_SOCKETCALL
+#define __ARCH_WANT_SYS_FADVISE64
+#define __ARCH_WANT_SYS_GETPGRP
+#define __ARCH_WANT_SYS_LLSEEK
+#define __ARCH_WANT_SYS_NICE
+#define __ARCH_WANT_SYS_OLD_GETRLIMIT
+#define __ARCH_WANT_SYS_OLDUMOUNT
+#define __ARCH_WANT_SYS_SIGPENDING
+#define __ARCH_WANT_SYS_SIGPROCMASK
+#define __ARCH_WANT_SYS_RT_SIGACTION
+#define __ARCH_WANT_SYS_RT_SIGSUSPEND
+# ifndef CONFIG_64BIT
+#   define __ARCH_WANT_STAT64
+#   define __ARCH_WANT_SYS_TIME
+# endif
+# ifdef CONFIG_COMPAT
+#   define __ARCH_WANT_COMPAT_SYS_TIME
+#   define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
+# endif
+
+/*
+ * "Conditional" syscalls
+ *
+ * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
+ * but it doesn't work on all toolchains, so we just do it by hand
+ */
+#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_S390_UNISTD_H_ */
diff --git a/arch/s390/include/asm/user.h b/arch/s390/include/asm/user.h
new file mode 100644
index 00000000000..1b050e35fdc
--- /dev/null
+++ b/arch/s390/include/asm/user.h
@@ -0,0 +1,76 @@
+/*
+ *  include/asm-s390/user.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/usr.h"
+ */
+
+#ifndef _S390_USER_H
+#define _S390_USER_H
+
+#include <asm/page.h>
+#include <asm/ptrace.h>
+/* Core file format: The core file is written in such a way that gdb
+   can understand it and provide useful information to the user (under
+   linux we use the 'trad-core' bfd).  There are quite a number of
+   obstacles to being able to view the contents of the floating point
+   registers, and until these are solved you will not be able to view the
+   contents of them.  Actually, you can read in the core file and look at
+   the contents of the user struct to find out what the floating point
+   registers contain.
+   The actual file contents are as follows:
+   UPAGE: 1 page consisting of a user struct that tells gdb what is present
+   in the file.  Directly after this is a copy of the task_struct, which
+   is currently not used by gdb, but it may come in useful at some point.
+   All of the registers are stored as part of the upage.  The upage should
+   always be only one page.
+   DATA: The data area is stored.  We use current->end_text to
+   current->brk to pick up all of the user variables, plus any memory
+   that may have been malloced.  No attempt is made to determine if a page
+   is demand-zero or if a page is totally unused, we just cover the entire
+   range.  All of the addresses are rounded in such a way that an integral
+   number of pages is written.
+   STACK: We need the stack information in order to get a meaningful
+   backtrace.  We need to write the data from (esp) to
+   current->start_stack, so we round each of these off in order to be able
+   to write an integer number of pages.
+   The minimum core file size is 3 pages, or 12288 bytes.
+*/
+
+
+/*
+ * This is the old layout of "struct pt_regs", and
+ * is still the layout used by user mode (the new
+ * pt_regs doesn't have all registers as the kernel
+ * doesn't use the extra segment registers)
+ */
+
+/* When the kernel dumps core, it starts by dumping the user struct -
+   this will be used by gdb to figure out where the data and stack segments
+   are within the file, and what virtual addresses to use. */
+struct user {
+/* We start with the registers, to mimic the way that "memory" is returned
+   from the ptrace(3,...) function.  */
+  struct user_regs_struct regs;		/* Where the registers are actually stored */
+/* The rest of this junk is to help gdb figure out what goes where */
+  unsigned long int u_tsize;	/* Text segment size (pages). */
+  unsigned long int u_dsize;	/* Data segment size (pages). */
+  unsigned long int u_ssize;	/* Stack segment size (pages). */
+  unsigned long start_code;     /* Starting virtual address of text. */
+  unsigned long start_stack;	/* Starting virtual address of stack area.
+				   This is actually the bottom of the stack,
+				   the top of the stack is always found in the
+				   esp register.  */
+  long int signal;     		/* Signal that caused the core dump. */
+  unsigned long u_ar0;		/* Used by gdb to help find the values for */
+				/* the registers. */
+  unsigned long magic;		/* To uniquely identify a core file */
+  char u_comm[32];		/* User command that was responsible */
+};
+#define NBPG PAGE_SIZE
+#define UPAGES 1
+#define HOST_TEXT_START_ADDR (u.start_code)
+#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
+
+#endif /* _S390_USER_H */
diff --git a/arch/s390/include/asm/vtoc.h b/arch/s390/include/asm/vtoc.h
new file mode 100644
index 00000000000..3a5267d90d2
--- /dev/null
+++ b/arch/s390/include/asm/vtoc.h
@@ -0,0 +1,203 @@
+/*
+ * include/asm-s390/vtoc.h
+ *
+ * This file contains volume label definitions for DASD devices.
+ *
+ * (C) Copyright IBM Corp. 2005
+ *
+ * Author(s): Volker Sameske <sameske@de.ibm.com>
+ *
+ */
+
+#ifndef _ASM_S390_VTOC_H
+#define _ASM_S390_VTOC_H
+
+#include <linux/types.h>
+
+struct vtoc_ttr
+{
+	__u16 tt;
+	__u8 r;
+} __attribute__ ((packed));
+
+struct vtoc_cchhb
+{
+	__u16 cc;
+	__u16 hh;
+	__u8 b;
+} __attribute__ ((packed));
+
+struct vtoc_cchh
+{
+	__u16 cc;
+	__u16 hh;
+} __attribute__ ((packed));
+
+struct vtoc_labeldate
+{
+	__u8 year;
+	__u16 day;
+} __attribute__ ((packed));
+
+struct vtoc_volume_label
+{
+	char volkey[4];		/* volume key = volume label */
+	char vollbl[4];		/* volume label */
+	char volid[6];		/* volume identifier */
+	__u8 security;		/* security byte */
+	struct vtoc_cchhb vtoc;	/* VTOC address */
+	char res1[5];		/* reserved */
+	char cisize[4];		/* CI-size for FBA,... */
+				/* ...blanks for CKD */
+	char blkperci[4];	/* no of blocks per CI (FBA), blanks for CKD */
+	char labperci[4];	/* no of labels per CI (FBA), blanks for CKD */
+	char res2[4];		/* reserved */
+	char lvtoc[14];		/* owner code for LVTOC */
+	char res3[29];		/* reserved */
+} __attribute__ ((packed));
+
+struct vtoc_extent
+{
+	__u8 typeind;			/* extent type indicator */
+	__u8 seqno;			/* extent sequence number */
+	struct vtoc_cchh llimit;	/* starting point of this extent */
+	struct vtoc_cchh ulimit;	/* ending point of this extent */
+} __attribute__ ((packed));
+
+struct vtoc_dev_const
+{
+	__u16 DS4DSCYL;	/* number of logical cyls */
+	__u16 DS4DSTRK;	/* number of tracks in a logical cylinder */
+	__u16 DS4DEVTK;	/* device track length */
+	__u8 DS4DEVI;	/* non-last keyed record overhead */
+	__u8 DS4DEVL;	/* last keyed record overhead */
+	__u8 DS4DEVK;	/* non-keyed record overhead differential */
+	__u8 DS4DEVFG;	/* flag byte */
+	__u16 DS4DEVTL;	/* device tolerance */
+	__u8 DS4DEVDT;	/* number of DSCB's per track */
+	__u8 DS4DEVDB;	/* number of directory blocks per track */
+} __attribute__ ((packed));
+
+struct vtoc_format1_label
+{
+	char DS1DSNAM[44];	/* data set name */
+	__u8 DS1FMTID;		/* format identifier */
+	char DS1DSSN[6];	/* data set serial number */
+	__u16 DS1VOLSQ;		/* volume sequence number */
+	struct vtoc_labeldate DS1CREDT; /* creation date: ydd */
+	struct vtoc_labeldate DS1EXPDT; /* expiration date */
+	__u8 DS1NOEPV;		/* number of extents on volume */
+	__u8 DS1NOBDB;		/* no. of bytes used in last direction blk */
+	__u8 DS1FLAG1;		/* flag 1 */
+	char DS1SYSCD[13];	/* system code */
+	struct vtoc_labeldate DS1REFD; /* date last referenced	*/
+	__u8 DS1SMSFG;		/* system managed storage indicators */
+	__u8 DS1SCXTF;		/* sec. space extension flag byte */
+	__u16 DS1SCXTV;		/* secondary space extension value */
+	__u8 DS1DSRG1;		/* data set organisation byte 1 */
+	__u8 DS1DSRG2;		/* data set organisation byte 2 */
+	__u8 DS1RECFM;		/* record format */
+	__u8 DS1OPTCD;		/* option code */
+	__u16 DS1BLKL;		/* block length */
+	__u16 DS1LRECL;		/* record length */
+	__u8 DS1KEYL;		/* key length */
+	__u16 DS1RKP;		/* relative key position */
+	__u8 DS1DSIND;		/* data set indicators */
+	__u8 DS1SCAL1;		/* secondary allocation flag byte */
+	char DS1SCAL3[3];	/* secondary allocation quantity */
+	struct vtoc_ttr DS1LSTAR; /* last used track and block on track */
+	__u16 DS1TRBAL;		/* space remaining on last used track */
+	__u16 res1;		/* reserved */
+	struct vtoc_extent DS1EXT1; /* first extent description */
+	struct vtoc_extent DS1EXT2; /* second extent description */
+	struct vtoc_extent DS1EXT3; /* third extent description */
+	struct vtoc_cchhb DS1PTRDS; /* possible pointer to f2 or f3 DSCB */
+} __attribute__ ((packed));
+
+struct vtoc_format4_label
+{
+	char DS4KEYCD[44];	/* key code for VTOC labels: 44 times 0x04 */
+	__u8 DS4IDFMT;		/* format identifier */
+	struct vtoc_cchhb DS4HPCHR; /* highest address of a format 1 DSCB */
+	__u16 DS4DSREC;		/* number of available DSCB's */
+	struct vtoc_cchh DS4HCCHH; /* CCHH of next available alternate track */
+	__u16 DS4NOATK;		/* number of remaining alternate tracks */
+	__u8 DS4VTOCI;		/* VTOC indicators */
+	__u8 DS4NOEXT;		/* number of extents in VTOC */
+	__u8 DS4SMSFG;		/* system managed storage indicators */
+	__u8 DS4DEVAC;		/* number of alternate cylinders.
+				 * Subtract from first two bytes of
+				 * DS4DEVSZ to get number of usable
+				 * cylinders. can be zero. valid
+				 * only if DS4DEVAV on. */
+	struct vtoc_dev_const DS4DEVCT;	/* device constants */
+	char DS4AMTIM[8];	/* VSAM time stamp */
+	char DS4AMCAT[3];	/* VSAM catalog indicator */
+	char DS4R2TIM[8];	/* VSAM volume/catalog match time stamp */
+	char res1[5];		/* reserved */
+	char DS4F6PTR[5];	/* pointer to first format 6 DSCB */
+	struct vtoc_extent DS4VTOCE; /* VTOC extent description */
+	char res2[10];		/* reserved */
+	__u8 DS4EFLVL;		/* extended free-space management level */
+	struct vtoc_cchhb DS4EFPTR; /* pointer to extended free-space info */
+	char res3[9];		/* reserved */
+} __attribute__ ((packed));
+
+struct vtoc_ds5ext
+{
+	__u16 t;	/* RTA of the first track of free extent */
+	__u16 fc;	/* number of whole cylinders in free ext. */
+	__u8 ft;	/* number of remaining free tracks */
+} __attribute__ ((packed));
+
+struct vtoc_format5_label
+{
+	char DS5KEYID[4];	/* key identifier */
+	struct vtoc_ds5ext DS5AVEXT; /* first available (free-space) extent. */
+	struct vtoc_ds5ext DS5EXTAV[7]; /* seven available extents */
+	__u8 DS5FMTID;		/* format identifier */
+	struct vtoc_ds5ext DS5MAVET[18]; /* eighteen available extents */
+	struct vtoc_cchhb DS5PTRDS; /* pointer to next format5 DSCB */
+} __attribute__ ((packed));
+
+struct vtoc_ds7ext
+{
+	__u32 a; /* starting RTA value */
+	__u32 b; /* ending RTA value + 1 */
+} __attribute__ ((packed));
+
+struct vtoc_format7_label
+{
+	char DS7KEYID[4];	/* key identifier */
+	struct vtoc_ds7ext DS7EXTNT[5]; /* space for 5 extent descriptions */
+	__u8 DS7FMTID;		/* format identifier */
+	struct vtoc_ds7ext DS7ADEXT[11]; /* space for 11 extent descriptions */
+	char res1[2];		/* reserved */
+	struct vtoc_cchhb DS7PTRDS; /* pointer to next FMT7 DSCB */
+} __attribute__ ((packed));
+
+struct vtoc_cms_label {
+	__u8 label_id[4];		/* Label identifier */
+	__u8 vol_id[6];		/* Volid */
+	__u16 version_id;		/* Version identifier */
+	__u32 block_size;		/* Disk block size */
+	__u32 origin_ptr;		/* Disk origin pointer */
+	__u32 usable_count;	/* Number of usable cylinders/blocks */
+	__u32 formatted_count;	/* Maximum number of formatted cylinders/
+				 * blocks */
+	__u32 block_count;	/* Disk size in CMS blocks */
+	__u32 used_count;		/* Number of CMS blocks in use */
+	__u32 fst_size;		/* File Status Table (FST) size */
+	__u32 fst_count;		/* Number of FSTs per CMS block */
+	__u8 format_date[6];	/* Disk FORMAT date */
+	__u8 reserved1[2];
+	__u32 disk_offset;	/* Disk offset when reserved*/
+	__u32 map_block;		/* Allocation Map Block with next hole */
+	__u32 hblk_disp;		/* Displacement into HBLK data of next hole */
+	__u32 user_disp;		/* Displacement into user part of Allocation
+				 * map */
+	__u8 reserved2[4];
+	__u8 segment_name[8];	/* Name of shared segment */
+} __attribute__ ((packed));
+
+#endif /* _ASM_S390_VTOC_H */
diff --git a/arch/s390/include/asm/xor.h b/arch/s390/include/asm/xor.h
new file mode 100644
index 00000000000..c82eb12a5b1
--- /dev/null
+++ b/arch/s390/include/asm/xor.h
@@ -0,0 +1 @@
+#include <asm-generic/xor.h>
diff --git a/arch/s390/include/asm/zcrypt.h b/arch/s390/include/asm/zcrypt.h
new file mode 100644
index 00000000000..00d3bbd4411
--- /dev/null
+++ b/arch/s390/include/asm/zcrypt.h
@@ -0,0 +1,276 @@
+/*
+ *  include/asm-s390/zcrypt.h
+ *
+ *  zcrypt 2.1.0 (user-visible header)
+ *
+ *  Copyright (C)  2001, 2006 IBM Corporation
+ *  Author(s): Robert Burroughs
+ *	       Eric Rossman (edrossma@us.ibm.com)
+ *
+ *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __ASM_S390_ZCRYPT_H
+#define __ASM_S390_ZCRYPT_H
+
+#define ZCRYPT_VERSION 2
+#define ZCRYPT_RELEASE 1
+#define ZCRYPT_VARIANT 1
+
+#include <linux/ioctl.h>
+#include <linux/compiler.h>
+
+/**
+ * struct ica_rsa_modexpo
+ *
+ * Requirements:
+ * - outputdatalength is at least as large as inputdatalength.
+ * - All key parts are right justified in their fields, padded on
+ *   the left with zeroes.
+ * - length(b_key) = inputdatalength
+ * - length(n_modulus) = inputdatalength
+ */
+struct ica_rsa_modexpo {
+	char __user *	inputdata;
+	unsigned int	inputdatalength;
+	char __user *	outputdata;
+	unsigned int	outputdatalength;
+	char __user *	b_key;
+	char __user *	n_modulus;
+};
+
+/**
+ * struct ica_rsa_modexpo_crt
+ *
+ * Requirements:
+ * - inputdatalength is even.
+ * - outputdatalength is at least as large as inputdatalength.
+ * - All key parts are right justified in their fields, padded on
+ *   the left with zeroes.
+ * - length(bp_key)	= inputdatalength/2 + 8
+ * - length(bq_key)	= inputdatalength/2
+ * - length(np_key)	= inputdatalength/2 + 8
+ * - length(nq_key)	= inputdatalength/2
+ * - length(u_mult_inv) = inputdatalength/2 + 8
+ */
+struct ica_rsa_modexpo_crt {
+	char __user *	inputdata;
+	unsigned int	inputdatalength;
+	char __user *	outputdata;
+	unsigned int	outputdatalength;
+	char __user *	bp_key;
+	char __user *	bq_key;
+	char __user *	np_prime;
+	char __user *	nq_prime;
+	char __user *	u_mult_inv;
+};
+
+/**
+ * CPRBX
+ *	  Note that all shorts and ints are big-endian.
+ *	  All pointer fields are 16 bytes long, and mean nothing.
+ *
+ *	  A request CPRB is followed by a request_parameter_block.
+ *
+ *	  The request (or reply) parameter block is organized thus:
+ *	    function code
+ *	    VUD block
+ *	    key block
+ */
+struct CPRBX {
+	unsigned short	cprb_len;	/* CPRB length	      220	 */
+	unsigned char	cprb_ver_id;	/* CPRB version id.   0x02	 */
+	unsigned char	pad_000[3];	/* Alignment pad bytes		 */
+	unsigned char	func_id[2];	/* function id	      0x5432	 */
+	unsigned char	cprb_flags[4];	/* Flags			 */
+	unsigned int	req_parml;	/* request parameter buffer len	 */
+	unsigned int	req_datal;	/* request data buffer		 */
+	unsigned int	rpl_msgbl;	/* reply  message block length	 */
+	unsigned int	rpld_parml;	/* replied parameter block len	 */
+	unsigned int	rpl_datal;	/* reply data block len		 */
+	unsigned int	rpld_datal;	/* replied data block len	 */
+	unsigned int	req_extbl;	/* request extension block len	 */
+	unsigned char	pad_001[4];	/* reserved			 */
+	unsigned int	rpld_extbl;	/* replied extension block len	 */
+	unsigned char	padx000[16 - sizeof (char *)];
+	unsigned char *	req_parmb;	/* request parm block 'address'	 */
+	unsigned char	padx001[16 - sizeof (char *)];
+	unsigned char *	req_datab;	/* request data block 'address'	 */
+	unsigned char	padx002[16 - sizeof (char *)];
+	unsigned char *	rpl_parmb;	/* reply parm block 'address'	 */
+	unsigned char	padx003[16 - sizeof (char *)];
+	unsigned char *	rpl_datab;	/* reply data block 'address'	 */
+	unsigned char	padx004[16 - sizeof (char *)];
+	unsigned char *	req_extb;	/* request extension block 'addr'*/
+	unsigned char	padx005[16 - sizeof (char *)];
+	unsigned char *	rpl_extb;	/* reply extension block 'address'*/
+	unsigned short	ccp_rtcode;	/* server return code		 */
+	unsigned short	ccp_rscode;	/* server reason code		 */
+	unsigned int	mac_data_len;	/* Mac Data Length		 */
+	unsigned char	logon_id[8];	/* Logon Identifier		 */
+	unsigned char	mac_value[8];	/* Mac Value			 */
+	unsigned char	mac_content_flgs;/* Mac content flag byte	 */
+	unsigned char	pad_002;	/* Alignment			 */
+	unsigned short	domain;		/* Domain			 */
+	unsigned char	usage_domain[4];/* Usage domain			 */
+	unsigned char	cntrl_domain[4];/* Control domain		 */
+	unsigned char	S390enf_mask[4];/* S/390 enforcement mask	 */
+	unsigned char	pad_004[36];	/* reserved			 */
+} __attribute__((packed));
+
+/**
+ * xcRB
+ */
+struct ica_xcRB {
+	unsigned short	agent_ID;
+	unsigned int	user_defined;
+	unsigned short	request_ID;
+	unsigned int	request_control_blk_length;
+	unsigned char	padding1[16 - sizeof (char *)];
+	char __user *	request_control_blk_addr;
+	unsigned int	request_data_length;
+	char		padding2[16 - sizeof (char *)];
+	char __user *	request_data_address;
+	unsigned int	reply_control_blk_length;
+	char		padding3[16 - sizeof (char *)];
+	char __user *	reply_control_blk_addr;
+	unsigned int	reply_data_length;
+	char		padding4[16 - sizeof (char *)];
+	char __user *	reply_data_addr;
+	unsigned short	priority_window;
+	unsigned int	status;
+} __attribute__((packed));
+#define AUTOSELECT ((unsigned int)0xFFFFFFFF)
+
+#define ZCRYPT_IOCTL_MAGIC 'z'
+
+/**
+ * Interface notes:
+ *
+ * The ioctl()s which are implemented (along with relevant details)
+ * are:
+ *
+ *   ICARSAMODEXPO
+ *     Perform an RSA operation using a Modulus-Exponent pair
+ *     This takes an ica_rsa_modexpo struct as its arg.
+ *
+ *     NOTE: please refer to the comments preceding this structure
+ *	     for the implementation details for the contents of the
+ *	     block
+ *
+ *   ICARSACRT
+ *     Perform an RSA operation using a Chinese-Remainder Theorem key
+ *     This takes an ica_rsa_modexpo_crt struct as its arg.
+ *
+ *     NOTE: please refer to the comments preceding this structure
+ *	     for the implementation details for the contents of the
+ *	     block
+ *
+ *   ZSECSENDCPRB
+ *     Send an arbitrary CPRB to a crypto card.
+ *
+ *   Z90STAT_STATUS_MASK
+ *     Return an 64 element array of unsigned chars for the status of
+ *     all devices.
+ *	 0x01: PCICA
+ *	 0x02: PCICC
+ *	 0x03: PCIXCC_MCL2
+ *	 0x04: PCIXCC_MCL3
+ *	 0x05: CEX2C
+ *	 0x06: CEX2A
+ *	 0x0d: device is disabled via the proc filesystem
+ *
+ *   Z90STAT_QDEPTH_MASK
+ *     Return an 64 element array of unsigned chars for the queue
+ *     depth of all devices.
+ *
+ *   Z90STAT_PERDEV_REQCNT
+ *     Return an 64 element array of unsigned integers for the number
+ *     of successfully completed requests per device since the device
+ *     was detected and made available.
+ *
+ *   Z90STAT_REQUESTQ_COUNT
+ *     Return an integer count of the number of entries waiting to be
+ *     sent to a device.
+ *
+ *   Z90STAT_PENDINGQ_COUNT
+ *     Return an integer count of the number of entries sent to all
+ *     devices awaiting the reply.
+ *
+ *   Z90STAT_TOTALOPEN_COUNT
+ *     Return an integer count of the number of open file handles.
+ *
+ *   Z90STAT_DOMAIN_INDEX
+ *     Return the integer value of the Cryptographic Domain.
+ *
+ *   The following ioctls are deprecated and should be no longer used:
+ *
+ *   Z90STAT_TOTALCOUNT
+ *     Return an integer count of all device types together.
+ *
+ *   Z90STAT_PCICACOUNT
+ *     Return an integer count of all PCICAs.
+ *
+ *   Z90STAT_PCICCCOUNT
+ *     Return an integer count of all PCICCs.
+ *
+ *   Z90STAT_PCIXCCMCL2COUNT
+ *     Return an integer count of all MCL2 PCIXCCs.
+ *
+ *   Z90STAT_PCIXCCMCL3COUNT
+ *     Return an integer count of all MCL3 PCIXCCs.
+ *
+ *   Z90STAT_CEX2CCOUNT
+ *     Return an integer count of all CEX2Cs.
+ *
+ *   Z90STAT_CEX2ACOUNT
+ *     Return an integer count of all CEX2As.
+ *
+ *   ICAZ90STATUS
+ *     Return some device driver status in a ica_z90_status struct
+ *     This takes an ica_z90_status struct as its arg.
+ *
+ *   Z90STAT_PCIXCCCOUNT
+ *     Return an integer count of all PCIXCCs (MCL2 + MCL3).
+ *     This is DEPRECATED now that MCL3 PCIXCCs are treated differently from
+ *     MCL2 PCIXCCs.
+ */
+
+/**
+ * Supported ioctl calls
+ */
+#define ICARSAMODEXPO	_IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x05, 0)
+#define ICARSACRT	_IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x06, 0)
+#define ZSECSENDCPRB	_IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x81, 0)
+
+/* New status calls */
+#define Z90STAT_TOTALCOUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x40, int)
+#define Z90STAT_PCICACOUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x41, int)
+#define Z90STAT_PCICCCOUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x42, int)
+#define Z90STAT_PCIXCCMCL2COUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x4b, int)
+#define Z90STAT_PCIXCCMCL3COUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x4c, int)
+#define Z90STAT_CEX2CCOUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x4d, int)
+#define Z90STAT_CEX2ACOUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x4e, int)
+#define Z90STAT_REQUESTQ_COUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x44, int)
+#define Z90STAT_PENDINGQ_COUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x45, int)
+#define Z90STAT_TOTALOPEN_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x46, int)
+#define Z90STAT_DOMAIN_INDEX	_IOR(ZCRYPT_IOCTL_MAGIC, 0x47, int)
+#define Z90STAT_STATUS_MASK	_IOR(ZCRYPT_IOCTL_MAGIC, 0x48, char[64])
+#define Z90STAT_QDEPTH_MASK	_IOR(ZCRYPT_IOCTL_MAGIC, 0x49, char[64])
+#define Z90STAT_PERDEV_REQCNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x4a, int[64])
+
+#endif /* __ASM_S390_ZCRYPT_H */
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index d7f22226fc4..4646382af34 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -279,22 +279,6 @@ asmlinkage long sys32_getegid16(void)
 	return high2lowgid(current->egid);
 }
 
-/* 32-bit timeval and related flotsam.  */
-
-static inline long get_tv32(struct timeval *o, struct compat_timeval __user *i)
-{
-	return (!access_ok(VERIFY_READ, o, sizeof(*o)) ||
-		(__get_user(o->tv_sec, &i->tv_sec) ||
-		 __get_user(o->tv_usec, &i->tv_usec)));
-}
-
-static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i)
-{
-	return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
-		(__put_user(i->tv_sec, &o->tv_sec) ||
-		 __put_user(i->tv_usec, &o->tv_usec)));
-}
-
 /*
  * sys32_ipc() is the de-multiplexer for the SysV IPC calls in 32bit emulation.
  *
@@ -362,41 +346,6 @@ asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned
 		return sys_ftruncate(fd, (high << 32) | low);
 }
 
-int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
-{
-	compat_ino_t ino;
-	int err;
-
-	if (!old_valid_dev(stat->dev) || !old_valid_dev(stat->rdev))
-		return -EOVERFLOW;
-
-	ino = stat->ino;
-	if (sizeof(ino) < sizeof(stat->ino) && ino != stat->ino)
-		return -EOVERFLOW;
-
-	err = put_user(old_encode_dev(stat->dev), &statbuf->st_dev);
-	err |= put_user(stat->ino, &statbuf->st_ino);
-	err |= put_user(stat->mode, &statbuf->st_mode);
-	err |= put_user(stat->nlink, &statbuf->st_nlink);
-	err |= put_user(high2lowuid(stat->uid), &statbuf->st_uid);
-	err |= put_user(high2lowgid(stat->gid), &statbuf->st_gid);
-	err |= put_user(old_encode_dev(stat->rdev), &statbuf->st_rdev);
-	err |= put_user(stat->size, &statbuf->st_size);
-	err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
-	err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
-	err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
-	err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
-	err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
-	err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
-	err |= put_user(stat->blksize, &statbuf->st_blksize);
-	err |= put_user(stat->blocks, &statbuf->st_blocks);
-/* fixme
-	err |= put_user(0, &statbuf->__unused4[0]);
-	err |= put_user(0, &statbuf->__unused4[1]);
-*/
-	return err;
-}
-
 asmlinkage long sys32_sched_rr_get_interval(compat_pid_t pid,
 				struct compat_timespec __user *interval)
 {
@@ -557,65 +506,6 @@ sys32_delete_module(const char __user *name_user, unsigned int flags)
 
 #endif  /* CONFIG_MODULES */
 
-/* Translations due to time_t size differences.  Which affects all
-   sorts of things, like timeval and itimerval.  */
-
-extern struct timezone sys_tz;
-
-asmlinkage long sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
-{
-	if (tv) {
-		struct timeval ktv;
-		do_gettimeofday(&ktv);
-		if (put_tv32(tv, &ktv))
-			return -EFAULT;
-	}
-	if (tz) {
-		if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
-			return -EFAULT;
-	}
-	return 0;
-}
-
-static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
-{
-	long usec;
-
-	if (!access_ok(VERIFY_READ, i, sizeof(*i)))
-		return -EFAULT;
-	if (__get_user(o->tv_sec, &i->tv_sec))
-		return -EFAULT;
-	if (__get_user(usec, &i->tv_usec))
-		return -EFAULT;
-	o->tv_nsec = usec * 1000;
-	return 0;
-}
-
-asmlinkage long sys32_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
-{
-	struct timespec kts;
-	struct timezone ktz;
-
- 	if (tv) {
-		if (get_ts32(&kts, tv))
-			return -EFAULT;
-	}
-	if (tz) {
-		if (copy_from_user(&ktz, tz, sizeof(ktz)))
-			return -EFAULT;
-	}
-
-	return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
-}
-
-/* These are here just in case some old sparc32 binary calls it. */
-asmlinkage long sys32_pause(void)
-{
-	current->state = TASK_INTERRUPTIBLE;
-	schedule();
-	return -ERESTARTNOHAND;
-}
-
 asmlinkage long sys32_pread64(unsigned int fd, char __user *ubuf,
 				size_t count, u32 poshi, u32 poslo)
 {
diff --git a/arch/s390/kernel/compat_linux.h b/arch/s390/kernel/compat_linux.h
index 20723a06201..836a2884290 100644
--- a/arch/s390/kernel/compat_linux.h
+++ b/arch/s390/kernel/compat_linux.h
@@ -202,11 +202,6 @@ long sys32_execve(void);
 long sys32_init_module(void __user *umod, unsigned long len,
 		       const char __user *uargs);
 long sys32_delete_module(const char __user *name_user, unsigned int flags);
-long sys32_gettimeofday(struct compat_timeval __user *tv,
-			struct timezone __user *tz);
-long sys32_settimeofday(struct compat_timeval __user *tv,
-			struct timezone __user *tz);
-long sys32_pause(void);
 long sys32_pread64(unsigned int fd, char __user *ubuf, size_t count,
 		   u32 poshi, u32 poslo);
 long sys32_pwrite64(unsigned int fd, const char __user *ubuf,
diff --git a/arch/s390/kernel/compat_ptrace.h b/arch/s390/kernel/compat_ptrace.h
index cde81fa64f8..a2be3a978d5 100644
--- a/arch/s390/kernel/compat_ptrace.h
+++ b/arch/s390/kernel/compat_ptrace.h
@@ -42,6 +42,7 @@ struct user_regs_struct32
 	u32 gprs[NUM_GPRS];
 	u32 acrs[NUM_ACRS];
 	u32 orig_gpr2;
+	/* nb: there's a 4-byte hole here */
 	s390_fp_regs fp_regs;
 	/*
 	 * These per registers are in here so that gdb can modify them
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index d003a6e16af..fc2c97197a5 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -128,8 +128,6 @@ sys32_alarm_wrapper:
 	llgfr	%r2,%r2			# unsigned int
 	jg	sys_alarm		# branch to system call
 
-#sys32_pause_wrapper			# void
-
 	.globl	compat_sys_utime_wrapper
 compat_sys_utime_wrapper:
 	llgtr	%r2,%r2			# char *
@@ -334,17 +332,17 @@ compat_sys_getrusage_wrapper:
 	llgtr	%r3,%r3			# struct rusage_emu31 *
 	jg	compat_sys_getrusage	# branch to system call
 
-	.globl	sys32_gettimeofday_wrapper
-sys32_gettimeofday_wrapper:
+	.globl	compat_sys_gettimeofday_wrapper
+compat_sys_gettimeofday_wrapper:
 	llgtr	%r2,%r2			# struct timeval_emu31 *
 	llgtr	%r3,%r3			# struct timezone *
-	jg	sys32_gettimeofday	# branch to system call
+	jg	compat_sys_gettimeofday	# branch to system call
 
-	.globl	sys32_settimeofday_wrapper
-sys32_settimeofday_wrapper:
+	.globl	compat_sys_settimeofday_wrapper
+compat_sys_settimeofday_wrapper:
 	llgtr	%r2,%r2			# struct timeval_emu31 *
 	llgtr	%r3,%r3			# struct timezone *
-	jg	sys32_settimeofday	# branch to system call
+	jg	compat_sys_settimeofday	# branch to system call
 
 	.globl	sys32_getgroups16_wrapper
 sys32_getgroups16_wrapper:
@@ -1732,3 +1730,40 @@ compat_sys_timerfd_gettime_wrapper:
 	lgfr	%r2,%r2			# int
 	llgtr	%r3,%r3			# struct compat_itimerspec *
 	jg	compat_sys_timerfd_gettime
+
+	.globl compat_sys_signalfd4_wrapper
+compat_sys_signalfd4_wrapper:
+	lgfr	%r2,%r2			# int
+	llgtr	%r3,%r3			# compat_sigset_t *
+	llgfr	%r4,%r4			# compat_size_t
+	lgfr	%r5,%r5			# int
+	jg	compat_sys_signalfd4
+
+	.globl sys_eventfd2_wrapper
+sys_eventfd2_wrapper:
+	llgfr	%r2,%r2			# unsigned int
+	lgfr	%r3,%r3			# int
+	jg	sys_eventfd2
+
+	.globl	sys_inotify_init1_wrapper
+sys_inotify_init1_wrapper:
+	lgfr	%r2,%r2			# int
+	jg	sys_inotify_init1
+
+	.globl	sys_pipe2_wrapper
+sys_pipe2_wrapper:
+	llgtr	%r2,%r2			# u32 *
+	lgfr	%r3,%r3			# int
+	jg	sys_pipe2		# branch to system call
+
+	.globl	sys_dup3_wrapper
+sys_dup3_wrapper:
+	llgfr	%r2,%r2			# unsigned int
+	llgfr	%r3,%r3			# unsigned int
+	lgfr	%r4,%r4			# int
+	jg	sys_dup3		# branch to system call
+
+	.globl	sys_epoll_create1_wrapper
+sys_epoll_create1_wrapper:
+	lgfr	%r2,%r2			# int
+	jg	sys_epoll_create1	# branch to system call
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 708cf9cf9a3..ed500ef799b 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -49,9 +49,9 @@ SP_ILC	     =	STACK_FRAME_OVERHEAD + __PT_ILC
 SP_TRAP      =	STACK_FRAME_OVERHEAD + __PT_TRAP
 SP_SIZE      =	STACK_FRAME_OVERHEAD + __PT_SIZE
 
-_TIF_WORK_SVC = (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
+_TIF_WORK_SVC = (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_NEED_RESCHED | \
 		 _TIF_MCCK_PENDING | _TIF_RESTART_SVC | _TIF_SINGLE_STEP )
-_TIF_WORK_INT = (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
+_TIF_WORK_INT = (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_NEED_RESCHED | \
 		 _TIF_MCCK_PENDING)
 
 STACK_SHIFT = PAGE_SHIFT + THREAD_ORDER
@@ -318,6 +318,8 @@ sysc_work:
 	bo	BASED(sysc_reschedule)
 	tm	__TI_flags+3(%r9),_TIF_SIGPENDING
 	bnz	BASED(sysc_sigpending)
+	tm	__TI_flags+3(%r9),_TIF_NOTIFY_RESUME
+	bnz	BASED(sysc_notify_resume)
 	tm	__TI_flags+3(%r9),_TIF_RESTART_SVC
 	bo	BASED(sysc_restart)
 	tm	__TI_flags+3(%r9),_TIF_SINGLE_STEP
@@ -356,6 +358,16 @@ sysc_sigpending:
 	b	BASED(sysc_work_loop)
 
 #
+# _TIF_NOTIFY_RESUME is set, call do_notify_resume
+#
+sysc_notify_resume:
+	la	%r2,SP_PTREGS(%r15)	# load pt_regs
+	l	%r1,BASED(.Ldo_notify_resume)
+	la	%r14,BASED(sysc_work_loop)
+	br	%r1			# call do_notify_resume
+
+
+#
 # _TIF_RESTART_SVC is set, set up registers and restart svc
 #
 sysc_restart:
@@ -378,20 +390,21 @@ sysc_singlestep:
 	br	%r1			# branch to do_single_step
 
 #
-# call trace before and after sys_call
+# call tracehook_report_syscall_entry/tracehook_report_syscall_exit before
+# and after the system call
 #
 sysc_tracesys:
-	l	%r1,BASED(.Ltrace)
+	l	%r1,BASED(.Ltrace_entry)
 	la	%r2,SP_PTREGS(%r15)	# load pt_regs
 	la	%r3,0
 	srl	%r7,2
 	st	%r7,SP_R2(%r15)
 	basr	%r14,%r1
-	clc	SP_R2(4,%r15),BASED(.Lnr_syscalls)
+	cl	%r2,BASED(.Lnr_syscalls)
 	bnl	BASED(sysc_tracenogo)
 	l	%r8,BASED(.Lsysc_table)
-	l	%r7,SP_R2(%r15) 	# strace might have changed the
-	sll	%r7,2			#  system call
+	lr	%r7,%r2
+	sll	%r7,2			# *4
 	l	%r8,0(%r7,%r8)
 sysc_tracego:
 	lm	%r3,%r6,SP_R3(%r15)
@@ -401,9 +414,8 @@ sysc_tracego:
 sysc_tracenogo:
 	tm	__TI_flags+3(%r9),(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT)
 	bz	BASED(sysc_return)
-	l	%r1,BASED(.Ltrace)
+	l	%r1,BASED(.Ltrace_exit)
 	la	%r2,SP_PTREGS(%r15)	# load pt_regs
-	la	%r3,1
 	la	%r14,BASED(sysc_return)
 	br	%r1
 
@@ -666,6 +678,8 @@ io_work_loop:
 	bo	BASED(io_reschedule)
 	tm	__TI_flags+3(%r9),_TIF_SIGPENDING
 	bnz	BASED(io_sigpending)
+	tm	__TI_flags+3(%r9),_TIF_NOTIFY_RESUME
+	bnz	BASED(io_notify_resume)
 	b	BASED(io_restore)
 io_work_done:
 
@@ -704,6 +718,19 @@ io_sigpending:
 	TRACE_IRQS_OFF
 	b	BASED(io_work_loop)
 
+#
+# _TIF_SIGPENDING is set, call do_signal
+#
+io_notify_resume:
+	TRACE_IRQS_ON
+	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts
+	la	%r2,SP_PTREGS(%r15)	# load pt_regs
+	l	%r1,BASED(.Ldo_notify_resume)
+	basr	%r14,%r1		# call do_signal
+	stnsm	__SF_EMPTY(%r15),0xfc	# disable I/O and ext. interrupts
+	TRACE_IRQS_OFF
+	b	BASED(io_work_loop)
+
 /*
  * External interrupt handler routine
  */
@@ -1070,6 +1097,8 @@ cleanup_io_leave_insn:
 .Ldo_IRQ:	.long	do_IRQ
 .Ldo_extint:	.long	do_extint
 .Ldo_signal:	.long	do_signal
+.Ldo_notify_resume:
+		.long	do_notify_resume
 .Lhandle_per:	.long	do_single_step
 .Ldo_execve:	.long	do_execve
 .Lexecve_tail:	.long	execve_tail
@@ -1079,7 +1108,8 @@ cleanup_io_leave_insn:
 .Lpreempt_schedule_irq:
 		.long	preempt_schedule_irq
 #endif
-.Ltrace:	.long	syscall_trace
+.Ltrace_entry:	.long	do_syscall_trace_enter
+.Ltrace_exit:	.long	do_syscall_trace_exit
 .Lschedtail:	.long	schedule_tail
 .Lsysc_table:	.long	sys_call_table
 #ifdef CONFIG_TRACE_IRQFLAGS
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index fee10177dbf..d7ce150453f 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -52,9 +52,9 @@ SP_SIZE      =	STACK_FRAME_OVERHEAD + __PT_SIZE
 STACK_SHIFT = PAGE_SHIFT + THREAD_ORDER
 STACK_SIZE  = 1 << STACK_SHIFT
 
-_TIF_WORK_SVC = (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
+_TIF_WORK_SVC = (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_NEED_RESCHED | \
 		 _TIF_MCCK_PENDING | _TIF_RESTART_SVC | _TIF_SINGLE_STEP )
-_TIF_WORK_INT = (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
+_TIF_WORK_INT = (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_NEED_RESCHED | \
 		 _TIF_MCCK_PENDING)
 
 #define BASED(name) name-system_call(%r13)
@@ -310,6 +310,8 @@ sysc_work:
 	jo	sysc_reschedule
 	tm	__TI_flags+7(%r9),_TIF_SIGPENDING
 	jnz	sysc_sigpending
+	tm	__TI_flags+7(%r9),_TIF_NOTIFY_RESUME
+	jnz	sysc_notify_resume
 	tm	__TI_flags+7(%r9),_TIF_RESTART_SVC
 	jo	sysc_restart
 	tm	__TI_flags+7(%r9),_TIF_SINGLE_STEP
@@ -345,6 +347,14 @@ sysc_sigpending:
 	j	sysc_work_loop
 
 #
+# _TIF_NOTIFY_RESUME is set, call do_notify_resume
+#
+sysc_notify_resume:
+	la	%r2,SP_PTREGS(%r15)	# load pt_regs
+	larl	%r14,sysc_work_loop
+	jg	do_notify_resume	# call do_notify_resume
+
+#
 # _TIF_RESTART_SVC is set, set up registers and restart svc
 #
 sysc_restart:
@@ -367,20 +377,19 @@ sysc_singlestep:
 	jg	do_single_step		# branch to do_sigtrap
 
 #
-# call syscall_trace before and after system call
-# special linkage: %r12 contains the return address for trace_svc
+# call tracehook_report_syscall_entry/tracehook_report_syscall_exit before
+# and after the system call
 #
 sysc_tracesys:
 	la	%r2,SP_PTREGS(%r15)	# load pt_regs
 	la	%r3,0
 	srl	%r7,2
 	stg	%r7,SP_R2(%r15)
-	brasl	%r14,syscall_trace
+	brasl	%r14,do_syscall_trace_enter
 	lghi	%r0,NR_syscalls
-	clg	%r0,SP_R2(%r15)
+	clgr	%r0,%r2
 	jnh	sysc_tracenogo
-	lg	%r7,SP_R2(%r15)		# strace might have changed the
-	sll	%r7,2			# system call
+	slag	%r7,%r2,2		# *4
 	lgf	%r8,0(%r7,%r10)
 sysc_tracego:
 	lmg	%r3,%r6,SP_R3(%r15)
@@ -391,9 +400,8 @@ sysc_tracenogo:
 	tm	__TI_flags+7(%r9),(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT)
 	jz	sysc_return
 	la	%r2,SP_PTREGS(%r15)	# load pt_regs
-	la	%r3,1
 	larl	%r14,sysc_return	# return point is sysc_return
-	jg	syscall_trace
+	jg	do_syscall_trace_exit
 
 #
 # a new process exits the kernel with ret_from_fork
@@ -672,6 +680,8 @@ io_work_loop:
 	jo	io_reschedule
 	tm	__TI_flags+7(%r9),_TIF_SIGPENDING
 	jnz	io_sigpending
+	tm	__TI_flags+7(%r9),_TIF_NOTIFY_RESUME
+	jnz	io_notify_resume
 	j	io_restore
 io_work_done:
 
@@ -712,6 +722,18 @@ io_sigpending:
 	TRACE_IRQS_OFF
 	j	io_work_loop
 
+#
+# _TIF_NOTIFY_RESUME or is set, call do_notify_resume
+#
+io_notify_resume:
+	TRACE_IRQS_ON
+	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts
+	la	%r2,SP_PTREGS(%r15)	# load pt_regs
+	brasl	%r14,do_notify_resume	# call do_notify_resume
+	stnsm	__SF_EMPTY(%r15),0xfc	# disable I/O and ext. interrupts
+	TRACE_IRQS_OFF
+	j	io_work_loop
+
 /*
  * External interrupt handler routine
  */
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 54b2779b5e2..2dcf590faba 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -1705,7 +1705,10 @@ void __init setup_ipl(void)
 
 void __init ipl_update_parameters(void)
 {
-	if (diag308(DIAG308_STORE, &ipl_block) == DIAG308_RC_OK)
+	int rc;
+
+	rc = diag308(DIAG308_STORE, &ipl_block);
+	if ((rc == DIAG308_RC_OK) || (rc == DIAG308_RC_NOCONFIG))
 		diag308_set_works = 1;
 }
 
diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c
index 288ad490a6d..569079ec4ff 100644
--- a/arch/s390/kernel/kprobes.c
+++ b/arch/s390/kernel/kprobes.c
@@ -197,7 +197,7 @@ void __kprobes arch_arm_kprobe(struct kprobe *p)
 	args.new = BREAKPOINT_INSTRUCTION;
 
 	kcb->kprobe_status = KPROBE_SWAP_INST;
-	stop_machine_run(swap_instruction, &args, NR_CPUS);
+	stop_machine(swap_instruction, &args, NULL);
 	kcb->kprobe_status = status;
 }
 
@@ -212,7 +212,7 @@ void __kprobes arch_disarm_kprobe(struct kprobe *p)
 	args.new = p->opcode;
 
 	kcb->kprobe_status = KPROBE_SWAP_INST;
-	stop_machine_run(swap_instruction, &args, NR_CPUS);
+	stop_machine(swap_instruction, &args, NULL);
 	kcb->kprobe_status = status;
 }
 
@@ -270,7 +270,6 @@ static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
 	__ctl_store(kcb->kprobe_saved_ctl, 9, 11);
 }
 
-/* Called with kretprobe_lock held */
 void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
 					struct pt_regs *regs)
 {
@@ -332,7 +331,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 		 * No kprobe at this address. The fault has not been
 		 * caused by a kprobe breakpoint. The race of breakpoint
 		 * vs. kprobe remove does not exist because on s390 we
-		 * use stop_machine_run to arm/disarm the breakpoints.
+		 * use stop_machine to arm/disarm the breakpoints.
 		 */
 		goto no_kprobe;
 
@@ -377,8 +376,7 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p,
 	unsigned long trampoline_address = (unsigned long)&kretprobe_trampoline;
 
 	INIT_HLIST_HEAD(&empty_rp);
-	spin_lock_irqsave(&kretprobe_lock, flags);
-	head = kretprobe_inst_table_head(current);
+	kretprobe_hash_lock(current, &head, &flags);
 
 	/*
 	 * It is possible to have multiple instances associated with a given
@@ -417,7 +415,7 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p,
 	regs->psw.addr = orig_ret_address | PSW_ADDR_AMODE;
 
 	reset_current_kprobe();
-	spin_unlock_irqrestore(&kretprobe_lock, flags);
+	kretprobe_hash_unlock(current, &flags);
 	preempt_enable_no_resched();
 
 	hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
diff --git a/arch/s390/kernel/mem_detect.c b/arch/s390/kernel/mem_detect.c
index 18ed7abe16c..9872999c66d 100644
--- a/arch/s390/kernel/mem_detect.c
+++ b/arch/s390/kernel/mem_detect.c
@@ -9,27 +9,6 @@
 #include <asm/sclp.h>
 #include <asm/setup.h>
 
-static int memory_fast_detect(struct mem_chunk *chunk)
-{
-	unsigned long val0 = 0;
-	unsigned long val1 = 0xc;
-	int rc = -EOPNOTSUPP;
-
-	if (ipl_flags & IPL_NSS_VALID)
-		return -EOPNOTSUPP;
-	asm volatile(
-		"	diag	%1,%2,0x260\n"
-		"0:	lhi	%0,0\n"
-		"1:\n"
-		EX_TABLE(0b,1b)
-		: "+d" (rc), "+d" (val0), "+d" (val1) : : "cc");
-
-	if (rc || val0 != val1)
-		return -EOPNOTSUPP;
-	chunk->size = val0 + 1;
-	return 0;
-}
-
 static inline int tprot(unsigned long addr)
 {
 	int rc = -EFAULT;
@@ -84,8 +63,6 @@ void detect_memory_layout(struct mem_chunk chunk[])
 	unsigned long flags, cr0;
 
 	memset(chunk, 0, MEMORY_CHUNKS * sizeof(struct mem_chunk));
-	if (memory_fast_detect(&chunk[0]) == 0)
-		return;
 	/* Disable IRQs, DAT and low address protection so tprot does the
 	 * right thing and we don't get scheduled away with low address
 	 * protection disabled.
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 85defd01d29..3e2c05cb6a8 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -75,7 +75,9 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
 	return sf->gprs[8];
 }
 
-DEFINE_PER_CPU(struct s390_idle_data, s390_idle);
+DEFINE_PER_CPU(struct s390_idle_data, s390_idle) = {
+	.lock = __SPIN_LOCK_UNLOCKED(s390_idle.lock)
+};
 
 static int s390_idle_enter(void)
 {
@@ -142,7 +144,7 @@ static void default_idle(void)
 void cpu_idle(void)
 {
 	for (;;) {
-		tick_nohz_stop_sched_tick();
+		tick_nohz_stop_sched_tick(1);
 		while (!need_resched())
 			default_idle();
 		tick_nohz_restart_sched_tick();
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 2815bfe348a..1f31be1ecc4 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -35,6 +35,7 @@
 #include <linux/signal.h>
 #include <linux/elf.h>
 #include <linux/regset.h>
+#include <linux/tracehook.h>
 
 #include <asm/segment.h>
 #include <asm/page.h>
@@ -170,6 +171,13 @@ static unsigned long __peek_user(struct task_struct *child, addr_t addr)
 		 */
 		tmp = (addr_t) task_pt_regs(child)->orig_gpr2;
 
+	} else if (addr < (addr_t) &dummy->regs.fp_regs) {
+		/*
+		 * prevent reads of padding hole between
+		 * orig_gpr2 and fp_regs on s390.
+		 */
+		tmp = 0;
+
 	} else if (addr < (addr_t) (&dummy->regs.fp_regs + 1)) {
 		/* 
 		 * floating point regs. are stored in the thread structure
@@ -270,6 +278,13 @@ static int __poke_user(struct task_struct *child, addr_t addr, addr_t data)
 		 */
 		task_pt_regs(child)->orig_gpr2 = data;
 
+	} else if (addr < (addr_t) &dummy->regs.fp_regs) {
+		/*
+		 * prevent writes of padding hole between
+		 * orig_gpr2 and fp_regs on s390.
+		 */
+		return 0;
+
 	} else if (addr < (addr_t) (&dummy->regs.fp_regs + 1)) {
 		/*
 		 * floating point regs. are stored in the thread structure
@@ -428,6 +443,13 @@ static u32 __peek_user_compat(struct task_struct *child, addr_t addr)
 		 */
 		tmp = *(__u32*)((addr_t) &task_pt_regs(child)->orig_gpr2 + 4);
 
+	} else if (addr < (addr_t) &dummy32->regs.fp_regs) {
+		/*
+		 * prevent reads of padding hole between
+		 * orig_gpr2 and fp_regs on s390.
+		 */
+		tmp = 0;
+
 	} else if (addr < (addr_t) (&dummy32->regs.fp_regs + 1)) {
 		/*
 		 * floating point regs. are stored in the thread structure 
@@ -514,6 +536,13 @@ static int __poke_user_compat(struct task_struct *child,
 		 */
 		*(__u32*)((addr_t) &task_pt_regs(child)->orig_gpr2 + 4) = tmp;
 
+	} else if (addr < (addr_t) &dummy32->regs.fp_regs) {
+		/*
+		 * prevent writess of padding hole between
+		 * orig_gpr2 and fp_regs on s390.
+		 */
+		return 0;
+
 	} else if (addr < (addr_t) (&dummy32->regs.fp_regs + 1)) {
 		/*
 		 * floating point regs. are stored in the thread structure 
@@ -611,40 +640,44 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 }
 #endif
 
-asmlinkage void
-syscall_trace(struct pt_regs *regs, int entryexit)
+asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 {
-	if (unlikely(current->audit_context) && entryexit)
-		audit_syscall_exit(AUDITSC_RESULT(regs->gprs[2]), regs->gprs[2]);
-
-	if (!test_thread_flag(TIF_SYSCALL_TRACE))
-		goto out;
-	if (!(current->ptrace & PT_PTRACED))
-		goto out;
-	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
-				 ? 0x80 : 0));
+	long ret;
 
 	/*
-	 * If the debuffer has set an invalid system call number,
-	 * we prepare to skip the system call restart handling.
+	 * The sysc_tracesys code in entry.S stored the system
+	 * call number to gprs[2].
 	 */
-	if (!entryexit && regs->gprs[2] >= NR_syscalls)
+	ret = regs->gprs[2];
+	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
+	    (tracehook_report_syscall_entry(regs) ||
+	     regs->gprs[2] >= NR_syscalls)) {
+		/*
+		 * Tracing decided this syscall should not happen or the
+		 * debugger stored an invalid system call number. Skip
+		 * the system call and the system call restart handling.
+		 */
 		regs->trap = -1;
-
-	/*
-	 * this isn't the same as continuing with a signal, but it will do
-	 * for normal use.  strace only continues with a signal if the
-	 * stopping signal is not SIGTRAP.  -brl
-	 */
-	if (current->exit_code) {
-		send_sig(current->exit_code, current, 1);
-		current->exit_code = 0;
+		ret = -1;
 	}
- out:
-	if (unlikely(current->audit_context) && !entryexit)
-		audit_syscall_entry(test_thread_flag(TIF_31BIT)?AUDIT_ARCH_S390:AUDIT_ARCH_S390X,
-				    regs->gprs[2], regs->orig_gpr2, regs->gprs[3],
-				    regs->gprs[4], regs->gprs[5]);
+
+	if (unlikely(current->audit_context))
+		audit_syscall_entry(test_thread_flag(TIF_31BIT) ?
+					AUDIT_ARCH_S390 : AUDIT_ARCH_S390X,
+				    regs->gprs[2], regs->orig_gpr2,
+				    regs->gprs[3], regs->gprs[4],
+				    regs->gprs[5]);
+	return ret;
+}
+
+asmlinkage void do_syscall_trace_exit(struct pt_regs *regs)
+{
+	if (unlikely(current->audit_context))
+		audit_syscall_exit(AUDITSC_RESULT(regs->gprs[2]),
+				   regs->gprs[2]);
+
+	if (test_thread_flag(TIF_SYSCALL_TRACE))
+		tracehook_report_syscall_exit(regs, 0);
 }
 
 /*
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index b358e18273b..62122bad1e3 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -54,6 +54,7 @@
 #include <asm/sections.h>
 #include <asm/ebcdic.h>
 #include <asm/compat.h>
+#include <asm/kvm_virtio.h>
 
 long psw_kernel_bits	= (PSW_BASE_BITS | PSW_MASK_DAT | PSW_ASC_PRIMARY |
 			   PSW_MASK_MCHECK | PSW_DEFAULT_KEY);
@@ -766,7 +767,8 @@ setup_arch(char **cmdline_p)
 		printk("We are running under VM (64 bit mode)\n");
 	else if (MACHINE_IS_KVM) {
 		printk("We are running under KVM (64 bit mode)\n");
-		add_preferred_console("ttyS", 1, NULL);
+		add_preferred_console("hvc", 0, NULL);
+		s390_virtio_console_init();
 	} else
 		printk("We are running native (64 bit mode)\n");
 #endif /* CONFIG_64BIT */
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index b9768204021..4f7fc3059a8 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -24,6 +24,7 @@
 #include <linux/tty.h>
 #include <linux/personality.h>
 #include <linux/binfmts.h>
+#include <linux/tracehook.h>
 #include <asm/ucontext.h>
 #include <asm/uaccess.h>
 #include <asm/lowcore.h>
@@ -507,6 +508,12 @@ void do_signal(struct pt_regs *regs)
 			 */
 			if (current->thread.per_info.single_step)
 				set_thread_flag(TIF_SINGLE_STEP);
+
+			/*
+			 * Let tracing know that we've done the handler setup.
+			 */
+			tracehook_signal_handler(signr, &info, &ka, regs,
+					 test_thread_flag(TIF_SINGLE_STEP));
 		}
 		return;
 	}
@@ -526,3 +533,9 @@ void do_signal(struct pt_regs *regs)
 		set_thread_flag(TIF_RESTART_SVC);
 	}
 }
+
+void do_notify_resume(struct pt_regs *regs)
+{
+	clear_thread_flag(TIF_NOTIFY_RESUME);
+	tracehook_notify_resume(regs);
+}
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index b6781030cfb..9e8b1f9b8f4 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -585,6 +585,8 @@ int __cpuinit start_secondary(void *cpuvoid)
 	/* Enable pfault pseudo page faults on this cpu. */
 	pfault_init();
 
+	/* call cpu notifiers */
+	notify_cpu_starting(smp_processor_id());
 	/* Mark this cpu as online */
 	spin_lock(&call_lock);
 	cpu_set(smp_processor_id(), cpu_online_map);
@@ -610,7 +612,6 @@ static void __init smp_create_idle(unsigned int cpu)
 	if (IS_ERR(p))
 		panic("failed fork for CPU %u: %li", cpu, PTR_ERR(p));
 	current_set[cpu] = p;
-	spin_lock_init(&(&per_cpu(s390_idle, cpu))->lock);
 }
 
 static int __cpuinit smp_alloc_lowcore(int cpu)
@@ -845,7 +846,6 @@ void __init smp_prepare_boot_cpu(void)
 	current_set[0] = current;
 	smp_cpu_state[0] = CPU_STATE_CONFIGURED;
 	smp_cpu_polarization[0] = POLARIZATION_UNKNWN;
-	spin_lock_init(&(&__get_cpu_var(s390_idle))->lock);
 }
 
 void __init smp_cpus_done(unsigned int max_cpus)
@@ -864,7 +864,8 @@ int setup_profiling_timer(unsigned int multiplier)
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
-static ssize_t cpu_configure_show(struct sys_device *dev, char *buf)
+static ssize_t cpu_configure_show(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	ssize_t count;
 
@@ -874,8 +875,9 @@ static ssize_t cpu_configure_show(struct sys_device *dev, char *buf)
 	return count;
 }
 
-static ssize_t cpu_configure_store(struct sys_device *dev, const char *buf,
-				   size_t count)
+static ssize_t cpu_configure_store(struct sys_device *dev,
+				  struct sysdev_attribute *attr,
+				  const char *buf, size_t count)
 {
 	int cpu = dev->id;
 	int val, rc;
@@ -922,7 +924,8 @@ out:
 static SYSDEV_ATTR(configure, 0644, cpu_configure_show, cpu_configure_store);
 #endif /* CONFIG_HOTPLUG_CPU */
 
-static ssize_t cpu_polarization_show(struct sys_device *dev, char *buf)
+static ssize_t cpu_polarization_show(struct sys_device *dev,
+				     struct sysdev_attribute *attr, char *buf)
 {
 	int cpu = dev->id;
 	ssize_t count;
@@ -950,7 +953,8 @@ static ssize_t cpu_polarization_show(struct sys_device *dev, char *buf)
 }
 static SYSDEV_ATTR(polarization, 0444, cpu_polarization_show, NULL);
 
-static ssize_t show_cpu_address(struct sys_device *dev, char *buf)
+static ssize_t show_cpu_address(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	return sprintf(buf, "%d\n", __cpu_logical_map[dev->id]);
 }
@@ -970,7 +974,8 @@ static struct attribute_group cpu_common_attr_group = {
 	.attrs = cpu_common_attrs,
 };
 
-static ssize_t show_capability(struct sys_device *dev, char *buf)
+static ssize_t show_capability(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	unsigned int capability;
 	int rc;
@@ -982,7 +987,8 @@ static ssize_t show_capability(struct sys_device *dev, char *buf)
 }
 static SYSDEV_ATTR(capability, 0444, show_capability, NULL);
 
-static ssize_t show_idle_count(struct sys_device *dev, char *buf)
+static ssize_t show_idle_count(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	struct s390_idle_data *idle;
 	unsigned long long idle_count;
@@ -995,7 +1001,8 @@ static ssize_t show_idle_count(struct sys_device *dev, char *buf)
 }
 static SYSDEV_ATTR(idle_count, 0444, show_idle_count, NULL);
 
-static ssize_t show_idle_time(struct sys_device *dev, char *buf)
+static ssize_t show_idle_time(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	struct s390_idle_data *idle;
 	unsigned long long new_time;
@@ -1112,7 +1119,9 @@ out:
 	return rc;
 }
 
-static ssize_t __ref rescan_store(struct sys_device *dev, const char *buf,
+static ssize_t __ref rescan_store(struct sys_device *dev,
+				  struct sysdev_attribute *attr,
+				  const char *buf,
 				  size_t count)
 {
 	int rc;
@@ -1123,7 +1132,9 @@ static ssize_t __ref rescan_store(struct sys_device *dev, const char *buf,
 static SYSDEV_ATTR(rescan, 0200, NULL, rescan_store);
 #endif /* CONFIG_HOTPLUG_CPU */
 
-static ssize_t dispatching_show(struct sys_device *dev, char *buf)
+static ssize_t dispatching_show(struct sys_device *dev,
+				struct sysdev_attribute *attr,
+				char *buf)
 {
 	ssize_t count;
 
@@ -1133,8 +1144,9 @@ static ssize_t dispatching_show(struct sys_device *dev, char *buf)
 	return count;
 }
 
-static ssize_t dispatching_store(struct sys_device *dev, const char *buf,
-				 size_t count)
+static ssize_t dispatching_store(struct sys_device *dev,
+				 struct sysdev_attribute *attr,
+				 const char *buf, size_t count)
 {
 	int val, rc;
 	char delim;
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index c87ec687d4c..2d61787949d 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -37,7 +37,7 @@ SYSCALL(sys_stime,sys_ni_syscall,sys32_stime_wrapper)		/* 25 old stime syscall *
 SYSCALL(sys_ptrace,sys_ptrace,sys32_ptrace_wrapper)
 SYSCALL(sys_alarm,sys_alarm,sys32_alarm_wrapper)
 NI_SYSCALL							/* old fstat syscall */
-SYSCALL(sys_pause,sys_pause,sys32_pause)
+SYSCALL(sys_pause,sys_pause,sys_pause)
 SYSCALL(sys_utime,sys_utime,compat_sys_utime_wrapper)		/* 30 */
 NI_SYSCALL							/* old stty syscall */
 NI_SYSCALL							/* old gtty syscall */
@@ -86,8 +86,8 @@ SYSCALL(sys_sethostname,sys_sethostname,sys32_sethostname_wrapper)
 SYSCALL(sys_setrlimit,sys_setrlimit,compat_sys_setrlimit_wrapper)	/* 75 */
 SYSCALL(sys_old_getrlimit,sys_getrlimit,compat_sys_old_getrlimit_wrapper)
 SYSCALL(sys_getrusage,sys_getrusage,compat_sys_getrusage_wrapper)
-SYSCALL(sys_gettimeofday,sys_gettimeofday,sys32_gettimeofday_wrapper)
-SYSCALL(sys_settimeofday,sys_settimeofday,sys32_settimeofday_wrapper)
+SYSCALL(sys_gettimeofday,sys_gettimeofday,compat_sys_gettimeofday_wrapper)
+SYSCALL(sys_settimeofday,sys_settimeofday,compat_sys_settimeofday_wrapper)
 SYSCALL(sys_getgroups16,sys_ni_syscall,sys32_getgroups16_wrapper)	/* 80 old getgroups16 syscall */
 SYSCALL(sys_setgroups16,sys_ni_syscall,sys32_setgroups16_wrapper)	/* old setgroups16 syscall */
 NI_SYSCALL							/* old select syscall */
@@ -330,3 +330,9 @@ SYSCALL(sys_eventfd,sys_eventfd,sys_eventfd_wrapper)
 SYSCALL(sys_timerfd_create,sys_timerfd_create,sys_timerfd_create_wrapper)
 SYSCALL(sys_timerfd_settime,sys_timerfd_settime,compat_sys_timerfd_settime_wrapper) /* 320 */
 SYSCALL(sys_timerfd_gettime,sys_timerfd_gettime,compat_sys_timerfd_gettime_wrapper)
+SYSCALL(sys_signalfd4,sys_signalfd4,compat_sys_signalfd4_wrapper)
+SYSCALL(sys_eventfd2,sys_eventfd2,sys_eventfd2_wrapper)
+SYSCALL(sys_inotify_init1,sys_inotify_init1,sys_inotify_init1_wrapper)
+SYSCALL(sys_pipe2,sys_pipe2,sys_pipe2_wrapper) /* 325 */
+SYSCALL(sys_dup3,sys_dup3,sys_dup3_wrapper)
+SYSCALL(sys_epoll_create1,sys_epoll_create1,sys_epoll_create1_wrapper)
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index f2cede3947b..b94e9e3b694 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -169,6 +169,8 @@ void init_cpu_timer(void)
 
 static void clock_comparator_interrupt(__u16 code)
 {
+	if (S390_lowcore.clock_comparator == -1ULL)
+		set_clock_comparator(S390_lowcore.clock_comparator);
 }
 
 static void etr_timing_alert(struct etr_irq_parm *);
@@ -1100,7 +1102,9 @@ static inline struct etr_aib *etr_aib_from_dev(struct sys_device *dev)
 		return etr_port1_online ? &etr_port1 : NULL;
 }
 
-static ssize_t etr_online_show(struct sys_device *dev, char *buf)
+static ssize_t etr_online_show(struct sys_device *dev,
+				struct sysdev_attribute *attr,
+				char *buf)
 {
 	unsigned int online;
 
@@ -1109,7 +1113,8 @@ static ssize_t etr_online_show(struct sys_device *dev, char *buf)
 }
 
 static ssize_t etr_online_store(struct sys_device *dev,
-			      const char *buf, size_t count)
+				struct sysdev_attribute *attr,
+				const char *buf, size_t count)
 {
 	unsigned int value;
 
@@ -1136,7 +1141,9 @@ static ssize_t etr_online_store(struct sys_device *dev,
 
 static SYSDEV_ATTR(online, 0600, etr_online_show, etr_online_store);
 
-static ssize_t etr_stepping_control_show(struct sys_device *dev, char *buf)
+static ssize_t etr_stepping_control_show(struct sys_device *dev,
+					struct sysdev_attribute *attr,
+					char *buf)
 {
 	return sprintf(buf, "%i\n", (dev == &etr_port0_dev) ?
 		       etr_eacr.e0 : etr_eacr.e1);
@@ -1144,7 +1151,8 @@ static ssize_t etr_stepping_control_show(struct sys_device *dev, char *buf)
 
 static SYSDEV_ATTR(stepping_control, 0400, etr_stepping_control_show, NULL);
 
-static ssize_t etr_mode_code_show(struct sys_device *dev, char *buf)
+static ssize_t etr_mode_code_show(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	if (!etr_port0_online && !etr_port1_online)
 		/* Status word is not uptodate if both ports are offline. */
@@ -1155,7 +1163,8 @@ static ssize_t etr_mode_code_show(struct sys_device *dev, char *buf)
 
 static SYSDEV_ATTR(state_code, 0400, etr_mode_code_show, NULL);
 
-static ssize_t etr_untuned_show(struct sys_device *dev, char *buf)
+static ssize_t etr_untuned_show(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	struct etr_aib *aib = etr_aib_from_dev(dev);
 
@@ -1166,7 +1175,8 @@ static ssize_t etr_untuned_show(struct sys_device *dev, char *buf)
 
 static SYSDEV_ATTR(untuned, 0400, etr_untuned_show, NULL);
 
-static ssize_t etr_network_id_show(struct sys_device *dev, char *buf)
+static ssize_t etr_network_id_show(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	struct etr_aib *aib = etr_aib_from_dev(dev);
 
@@ -1177,7 +1187,8 @@ static ssize_t etr_network_id_show(struct sys_device *dev, char *buf)
 
 static SYSDEV_ATTR(network, 0400, etr_network_id_show, NULL);
 
-static ssize_t etr_id_show(struct sys_device *dev, char *buf)
+static ssize_t etr_id_show(struct sys_device *dev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	struct etr_aib *aib = etr_aib_from_dev(dev);
 
@@ -1188,7 +1199,8 @@ static ssize_t etr_id_show(struct sys_device *dev, char *buf)
 
 static SYSDEV_ATTR(id, 0400, etr_id_show, NULL);
 
-static ssize_t etr_port_number_show(struct sys_device *dev, char *buf)
+static ssize_t etr_port_number_show(struct sys_device *dev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	struct etr_aib *aib = etr_aib_from_dev(dev);
 
@@ -1199,7 +1211,8 @@ static ssize_t etr_port_number_show(struct sys_device *dev, char *buf)
 
 static SYSDEV_ATTR(port, 0400, etr_port_number_show, NULL);
 
-static ssize_t etr_coupled_show(struct sys_device *dev, char *buf)
+static ssize_t etr_coupled_show(struct sys_device *dev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	struct etr_aib *aib = etr_aib_from_dev(dev);
 
@@ -1210,7 +1223,8 @@ static ssize_t etr_coupled_show(struct sys_device *dev, char *buf)
 
 static SYSDEV_ATTR(coupled, 0400, etr_coupled_show, NULL);
 
-static ssize_t etr_local_time_show(struct sys_device *dev, char *buf)
+static ssize_t etr_local_time_show(struct sys_device *dev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	struct etr_aib *aib = etr_aib_from_dev(dev);
 
@@ -1221,7 +1235,8 @@ static ssize_t etr_local_time_show(struct sys_device *dev, char *buf)
 
 static SYSDEV_ATTR(local_time, 0400, etr_local_time_show, NULL);
 
-static ssize_t etr_utc_offset_show(struct sys_device *dev, char *buf)
+static ssize_t etr_utc_offset_show(struct sys_device *dev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	struct etr_aib *aib = etr_aib_from_dev(dev);
 
@@ -1335,13 +1350,13 @@ early_param("stp", early_parse_stp);
 /*
  * Reset STP attachment.
  */
-static void stp_reset(void)
+static void __init stp_reset(void)
 {
 	int rc;
 
 	stp_page = alloc_bootmem_pages(PAGE_SIZE);
 	rc = chsc_sstpc(stp_page, STP_OP_CTRL, 0x0000);
-	if (rc == 1)
+	if (rc == 0)
 		set_bit(CLOCK_SYNC_HAS_STP, &clock_sync_flags);
 	else if (stp_online) {
 		printk(KERN_WARNING "Running on non STP capable machine.\n");
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 212d618b009..632b13e1005 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -9,7 +9,6 @@
 #include <linux/device.h>
 #include <linux/bootmem.h>
 #include <linux/sched.h>
-#include <linux/kthread.h>
 #include <linux/workqueue.h>
 #include <linux/cpu.h>
 #include <linux/smp.h>
@@ -230,20 +229,9 @@ void arch_update_cpu_topology(void)
 	}
 }
 
-static int topology_kthread(void *data)
-{
-	arch_reinit_sched_domains();
-	return 0;
-}
-
 static void topology_work_fn(struct work_struct *work)
 {
-	/* We can't call arch_reinit_sched_domains() from a multi-threaded
-	 * workqueue context since it may deadlock in case of cpu hotplug.
-	 * So we have to create a kernel thread in order to call
-	 * arch_reinit_sched_domains().
-	 */
-	kthread_run(topology_kthread, NULL, "topology_update");
+	arch_reinit_sched_domains();
 }
 
 void topology_schedule_update(void)
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index 76c1e60c92f..607bd67a18c 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -55,7 +55,7 @@ SECTIONS
 		__start___ex_table = .;
 		*(__ex_table)
 		__stop___ex_table = .;
-	}
+	} :data
 
 	.data : {		/* Data */
 		DATA_DATA
diff --git a/arch/s390/kvm/gaccess.h b/arch/s390/kvm/gaccess.h
index 4e0633c413f..ed60f3a74a8 100644
--- a/arch/s390/kvm/gaccess.h
+++ b/arch/s390/kvm/gaccess.h
@@ -18,11 +18,11 @@
 #include <asm/uaccess.h>
 
 static inline void __user *__guestaddr_to_user(struct kvm_vcpu *vcpu,
-					       u64 guestaddr)
+					       unsigned long guestaddr)
 {
-	u64 prefix  = vcpu->arch.sie_block->prefix;
-	u64 origin  = vcpu->kvm->arch.guest_origin;
-	u64 memsize = vcpu->kvm->arch.guest_memsize;
+	unsigned long prefix  = vcpu->arch.sie_block->prefix;
+	unsigned long origin  = vcpu->kvm->arch.guest_origin;
+	unsigned long memsize = vcpu->kvm->arch.guest_memsize;
 
 	if (guestaddr < 2 * PAGE_SIZE)
 		guestaddr += prefix;
@@ -37,7 +37,7 @@ static inline void __user *__guestaddr_to_user(struct kvm_vcpu *vcpu,
 	return (void __user *) guestaddr;
 }
 
-static inline int get_guest_u64(struct kvm_vcpu *vcpu, u64 guestaddr,
+static inline int get_guest_u64(struct kvm_vcpu *vcpu, unsigned long guestaddr,
 				u64 *result)
 {
 	void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
@@ -47,10 +47,10 @@ static inline int get_guest_u64(struct kvm_vcpu *vcpu, u64 guestaddr,
 	if (IS_ERR((void __force *) uptr))
 		return PTR_ERR((void __force *) uptr);
 
-	return get_user(*result, (u64 __user *) uptr);
+	return get_user(*result, (unsigned long __user *) uptr);
 }
 
-static inline int get_guest_u32(struct kvm_vcpu *vcpu, u64 guestaddr,
+static inline int get_guest_u32(struct kvm_vcpu *vcpu, unsigned long guestaddr,
 				u32 *result)
 {
 	void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
@@ -63,7 +63,7 @@ static inline int get_guest_u32(struct kvm_vcpu *vcpu, u64 guestaddr,
 	return get_user(*result, (u32 __user *) uptr);
 }
 
-static inline int get_guest_u16(struct kvm_vcpu *vcpu, u64 guestaddr,
+static inline int get_guest_u16(struct kvm_vcpu *vcpu, unsigned long guestaddr,
 				u16 *result)
 {
 	void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
@@ -76,7 +76,7 @@ static inline int get_guest_u16(struct kvm_vcpu *vcpu, u64 guestaddr,
 	return get_user(*result, (u16 __user *) uptr);
 }
 
-static inline int get_guest_u8(struct kvm_vcpu *vcpu, u64 guestaddr,
+static inline int get_guest_u8(struct kvm_vcpu *vcpu, unsigned long guestaddr,
 			       u8 *result)
 {
 	void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
@@ -87,7 +87,7 @@ static inline int get_guest_u8(struct kvm_vcpu *vcpu, u64 guestaddr,
 	return get_user(*result, (u8 __user *) uptr);
 }
 
-static inline int put_guest_u64(struct kvm_vcpu *vcpu, u64 guestaddr,
+static inline int put_guest_u64(struct kvm_vcpu *vcpu, unsigned long guestaddr,
 				u64 value)
 {
 	void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
@@ -100,7 +100,7 @@ static inline int put_guest_u64(struct kvm_vcpu *vcpu, u64 guestaddr,
 	return put_user(value, (u64 __user *) uptr);
 }
 
-static inline int put_guest_u32(struct kvm_vcpu *vcpu, u64 guestaddr,
+static inline int put_guest_u32(struct kvm_vcpu *vcpu, unsigned long guestaddr,
 				u32 value)
 {
 	void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
@@ -113,7 +113,7 @@ static inline int put_guest_u32(struct kvm_vcpu *vcpu, u64 guestaddr,
 	return put_user(value, (u32 __user *) uptr);
 }
 
-static inline int put_guest_u16(struct kvm_vcpu *vcpu, u64 guestaddr,
+static inline int put_guest_u16(struct kvm_vcpu *vcpu, unsigned long guestaddr,
 				u16 value)
 {
 	void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
@@ -126,7 +126,7 @@ static inline int put_guest_u16(struct kvm_vcpu *vcpu, u64 guestaddr,
 	return put_user(value, (u16 __user *) uptr);
 }
 
-static inline int put_guest_u8(struct kvm_vcpu *vcpu, u64 guestaddr,
+static inline int put_guest_u8(struct kvm_vcpu *vcpu, unsigned long guestaddr,
 			       u8 value)
 {
 	void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
@@ -138,7 +138,8 @@ static inline int put_guest_u8(struct kvm_vcpu *vcpu, u64 guestaddr,
 }
 
 
-static inline int __copy_to_guest_slow(struct kvm_vcpu *vcpu, u64 guestdest,
+static inline int __copy_to_guest_slow(struct kvm_vcpu *vcpu,
+				       unsigned long guestdest,
 				       const void *from, unsigned long n)
 {
 	int rc;
@@ -153,12 +154,12 @@ static inline int __copy_to_guest_slow(struct kvm_vcpu *vcpu, u64 guestdest,
 	return 0;
 }
 
-static inline int copy_to_guest(struct kvm_vcpu *vcpu, u64 guestdest,
+static inline int copy_to_guest(struct kvm_vcpu *vcpu, unsigned long guestdest,
 				const void *from, unsigned long n)
 {
-	u64 prefix  = vcpu->arch.sie_block->prefix;
-	u64 origin  = vcpu->kvm->arch.guest_origin;
-	u64 memsize = vcpu->kvm->arch.guest_memsize;
+	unsigned long prefix  = vcpu->arch.sie_block->prefix;
+	unsigned long origin  = vcpu->kvm->arch.guest_origin;
+	unsigned long memsize = vcpu->kvm->arch.guest_memsize;
 
 	if ((guestdest < 2 * PAGE_SIZE) && (guestdest + n > 2 * PAGE_SIZE))
 		goto slowpath;
@@ -189,7 +190,8 @@ slowpath:
 }
 
 static inline int __copy_from_guest_slow(struct kvm_vcpu *vcpu, void *to,
-					 u64 guestsrc, unsigned long n)
+					 unsigned long guestsrc,
+					 unsigned long n)
 {
 	int rc;
 	unsigned long i;
@@ -204,11 +206,11 @@ static inline int __copy_from_guest_slow(struct kvm_vcpu *vcpu, void *to,
 }
 
 static inline int copy_from_guest(struct kvm_vcpu *vcpu, void *to,
-				  u64 guestsrc, unsigned long n)
+				  unsigned long guestsrc, unsigned long n)
 {
-	u64 prefix  = vcpu->arch.sie_block->prefix;
-	u64 origin  = vcpu->kvm->arch.guest_origin;
-	u64 memsize = vcpu->kvm->arch.guest_memsize;
+	unsigned long prefix  = vcpu->arch.sie_block->prefix;
+	unsigned long origin  = vcpu->kvm->arch.guest_origin;
+	unsigned long memsize = vcpu->kvm->arch.guest_memsize;
 
 	if ((guestsrc < 2 * PAGE_SIZE) && (guestsrc + n > 2 * PAGE_SIZE))
 		goto slowpath;
@@ -238,11 +240,12 @@ slowpath:
 	return __copy_from_guest_slow(vcpu, to, guestsrc, n);
 }
 
-static inline int copy_to_guest_absolute(struct kvm_vcpu *vcpu, u64 guestdest,
+static inline int copy_to_guest_absolute(struct kvm_vcpu *vcpu,
+					 unsigned long guestdest,
 					 const void *from, unsigned long n)
 {
-	u64 origin  = vcpu->kvm->arch.guest_origin;
-	u64 memsize = vcpu->kvm->arch.guest_memsize;
+	unsigned long origin  = vcpu->kvm->arch.guest_origin;
+	unsigned long memsize = vcpu->kvm->arch.guest_memsize;
 
 	if (guestdest + n > memsize)
 		return -EFAULT;
@@ -256,10 +259,11 @@ static inline int copy_to_guest_absolute(struct kvm_vcpu *vcpu, u64 guestdest,
 }
 
 static inline int copy_from_guest_absolute(struct kvm_vcpu *vcpu, void *to,
-					   u64 guestsrc, unsigned long n)
+					   unsigned long guestsrc,
+					   unsigned long n)
 {
-	u64 origin  = vcpu->kvm->arch.guest_origin;
-	u64 memsize = vcpu->kvm->arch.guest_memsize;
+	unsigned long origin  = vcpu->kvm->arch.guest_origin;
+	unsigned long memsize = vcpu->kvm->arch.guest_memsize;
 
 	if (guestsrc + n > memsize)
 		return -EFAULT;
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index 47a0b642174..61236102203 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -20,7 +20,7 @@
 #include "kvm-s390.h"
 #include "gaccess.h"
 
-static int handle_lctg(struct kvm_vcpu *vcpu)
+static int handle_lctlg(struct kvm_vcpu *vcpu)
 {
 	int reg1 = (vcpu->arch.sie_block->ipa & 0x00f0) >> 4;
 	int reg3 = vcpu->arch.sie_block->ipa & 0x000f;
@@ -30,7 +30,7 @@ static int handle_lctg(struct kvm_vcpu *vcpu)
 	u64 useraddr;
 	int reg, rc;
 
-	vcpu->stat.instruction_lctg++;
+	vcpu->stat.instruction_lctlg++;
 	if ((vcpu->arch.sie_block->ipb & 0xff) != 0x2f)
 		return -ENOTSUPP;
 
@@ -38,9 +38,12 @@ static int handle_lctg(struct kvm_vcpu *vcpu)
 	if (base2)
 		useraddr += vcpu->arch.guest_gprs[base2];
 
+	if (useraddr & 7)
+		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
+
 	reg = reg1;
 
-	VCPU_EVENT(vcpu, 5, "lctg r1:%x, r3:%x,b2:%x,d2:%x", reg1, reg3, base2,
+	VCPU_EVENT(vcpu, 5, "lctlg r1:%x, r3:%x,b2:%x,d2:%x", reg1, reg3, base2,
 		   disp2);
 
 	do {
@@ -74,6 +77,9 @@ static int handle_lctl(struct kvm_vcpu *vcpu)
 	if (base2)
 		useraddr += vcpu->arch.guest_gprs[base2];
 
+	if (useraddr & 3)
+		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
+
 	VCPU_EVENT(vcpu, 5, "lctl r1:%x, r3:%x,b2:%x,d2:%x", reg1, reg3, base2,
 		   disp2);
 
@@ -99,7 +105,7 @@ static intercept_handler_t instruction_handlers[256] = {
 	[0xae] = kvm_s390_handle_sigp,
 	[0xb2] = kvm_s390_handle_priv,
 	[0xb7] = handle_lctl,
-	[0xeb] = handle_lctg,
+	[0xeb] = handle_lctlg,
 };
 
 static int handle_noop(struct kvm_vcpu *vcpu)
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 84a7fed4cd4..2960702b482 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -13,6 +13,7 @@
 #include <asm/lowcore.h>
 #include <asm/uaccess.h>
 #include <linux/kvm_host.h>
+#include <linux/signal.h>
 #include "kvm-s390.h"
 #include "gaccess.h"
 
@@ -31,7 +32,7 @@ static int psw_interrupts_disabled(struct kvm_vcpu *vcpu)
 }
 
 static int __interrupt_is_deliverable(struct kvm_vcpu *vcpu,
-				      struct interrupt_info *inti)
+				      struct kvm_s390_interrupt_info *inti)
 {
 	switch (inti->type) {
 	case KVM_S390_INT_EMERGENCY:
@@ -91,7 +92,7 @@ static void __set_cpuflag(struct kvm_vcpu *vcpu, u32 flag)
 }
 
 static void __set_intercept_indicator(struct kvm_vcpu *vcpu,
-				      struct interrupt_info *inti)
+				      struct kvm_s390_interrupt_info *inti)
 {
 	switch (inti->type) {
 	case KVM_S390_INT_EMERGENCY:
@@ -111,7 +112,7 @@ static void __set_intercept_indicator(struct kvm_vcpu *vcpu,
 }
 
 static void __do_deliver_interrupt(struct kvm_vcpu *vcpu,
-				   struct interrupt_info *inti)
+				   struct kvm_s390_interrupt_info *inti)
 {
 	const unsigned short table[] = { 2, 4, 4, 6 };
 	int rc, exception = 0;
@@ -246,15 +247,10 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu,
 	default:
 		BUG();
 	}
-
 	if (exception) {
-		VCPU_EVENT(vcpu, 1, "%s", "program exception while delivering"
-			   " interrupt");
-		kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
-		if (inti->type == KVM_S390_PROGRAM_INT) {
-			printk(KERN_WARNING "kvm: recursive program check\n");
-			BUG();
-		}
+		printk("kvm: The guest lowcore is not mapped during interrupt "
+			"delivery, killing userspace\n");
+		do_exit(SIGKILL);
 	}
 }
 
@@ -277,22 +273,19 @@ static int __try_deliver_ckc_interrupt(struct kvm_vcpu *vcpu)
 		__LC_EXT_NEW_PSW, sizeof(psw_t));
 	if (rc == -EFAULT)
 		exception = 1;
-
 	if (exception) {
-		VCPU_EVENT(vcpu, 1, "%s", "program exception while delivering" \
-			   " ckc interrupt");
-		kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
-		return 0;
+		printk("kvm: The guest lowcore is not mapped during interrupt "
+			"delivery, killing userspace\n");
+		do_exit(SIGKILL);
 	}
-
 	return 1;
 }
 
 int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu)
 {
-	struct local_interrupt *li = &vcpu->arch.local_int;
-	struct float_interrupt *fi = vcpu->arch.local_int.float_int;
-	struct interrupt_info  *inti;
+	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+	struct kvm_s390_float_interrupt *fi = vcpu->arch.local_int.float_int;
+	struct kvm_s390_interrupt_info  *inti;
 	int rc = 0;
 
 	if (atomic_read(&li->active)) {
@@ -408,9 +401,9 @@ void kvm_s390_idle_wakeup(unsigned long data)
 
 void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu)
 {
-	struct local_interrupt *li = &vcpu->arch.local_int;
-	struct float_interrupt *fi = vcpu->arch.local_int.float_int;
-	struct interrupt_info  *n, *inti = NULL;
+	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+	struct kvm_s390_float_interrupt *fi = vcpu->arch.local_int.float_int;
+	struct kvm_s390_interrupt_info  *n, *inti = NULL;
 	int deliver;
 
 	__reset_intercept_indicators(vcpu);
@@ -465,8 +458,8 @@ void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu)
 
 int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code)
 {
-	struct local_interrupt *li = &vcpu->arch.local_int;
-	struct interrupt_info *inti;
+	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+	struct kvm_s390_interrupt_info *inti;
 
 	inti = kzalloc(sizeof(*inti), GFP_KERNEL);
 	if (!inti)
@@ -487,9 +480,9 @@ int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code)
 int kvm_s390_inject_vm(struct kvm *kvm,
 		       struct kvm_s390_interrupt *s390int)
 {
-	struct local_interrupt *li;
-	struct float_interrupt *fi;
-	struct interrupt_info *inti;
+	struct kvm_s390_local_interrupt *li;
+	struct kvm_s390_float_interrupt *fi;
+	struct kvm_s390_interrupt_info *inti;
 	int sigcpu;
 
 	inti = kzalloc(sizeof(*inti), GFP_KERNEL);
@@ -544,8 +537,8 @@ int kvm_s390_inject_vm(struct kvm *kvm,
 int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu,
 			 struct kvm_s390_interrupt *s390int)
 {
-	struct local_interrupt *li;
-	struct interrupt_info *inti;
+	struct kvm_s390_local_interrupt *li;
+	struct kvm_s390_interrupt_info *inti;
 
 	inti = kzalloc(sizeof(*inti), GFP_KERNEL);
 	if (!inti)
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 6558b09ff57..8b00eb2ddf5 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -39,7 +39,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
 	{ "exit_instruction", VCPU_STAT(exit_instruction) },
 	{ "exit_program_interruption", VCPU_STAT(exit_program_interruption) },
 	{ "exit_instr_and_program_int", VCPU_STAT(exit_instr_and_program) },
-	{ "instruction_lctg", VCPU_STAT(instruction_lctg) },
+	{ "instruction_lctlg", VCPU_STAT(instruction_lctlg) },
 	{ "instruction_lctl", VCPU_STAT(instruction_lctl) },
 	{ "deliver_emergency_signal", VCPU_STAT(deliver_emergency_signal) },
 	{ "deliver_service_signal", VCPU_STAT(deliver_service_signal) },
@@ -79,10 +79,6 @@ void kvm_arch_hardware_disable(void *garbage)
 {
 }
 
-void decache_vcpus_on_cpu(int cpu)
-{
-}
-
 int kvm_arch_hardware_setup(void)
 {
 	return 0;
@@ -116,7 +112,12 @@ long kvm_arch_dev_ioctl(struct file *filp,
 
 int kvm_dev_ioctl_check_extension(long ext)
 {
-	return 0;
+	switch (ext) {
+	case KVM_CAP_USER_MEMORY:
+		return 1;
+	default:
+		return 0;
+	}
 }
 
 /* Section: vm related */
@@ -198,6 +199,7 @@ out_nokvm:
 void kvm_arch_destroy_vm(struct kvm *kvm)
 {
 	debug_unregister(kvm->arch.dbf);
+	kvm_free_physmem(kvm);
 	free_page((unsigned long)(kvm->arch.sca));
 	kfree(kvm);
 	module_put(THIS_MODULE);
@@ -250,11 +252,16 @@ static void kvm_s390_vcpu_initial_reset(struct kvm_vcpu *vcpu)
 	vcpu->arch.sie_block->gbea = 1;
 }
 
+/* The current code can have up to 256 pages for virtio */
+#define VIRTIODESCSPACE (256ul * 4096ul)
+
 int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
 {
 	atomic_set(&vcpu->arch.sie_block->cpuflags, CPUSTAT_ZARCH);
-	vcpu->arch.sie_block->gmslm = 0xffffffffffUL;
-	vcpu->arch.sie_block->gmsor = 0x000000000000;
+	vcpu->arch.sie_block->gmslm = vcpu->kvm->arch.guest_memsize +
+				      vcpu->kvm->arch.guest_origin +
+				      VIRTIODESCSPACE - 1ul;
+	vcpu->arch.sie_block->gmsor = vcpu->kvm->arch.guest_origin;
 	vcpu->arch.sie_block->ecb   = 2;
 	vcpu->arch.sie_block->eca   = 0xC1002001U;
 	setup_timer(&vcpu->arch.ckc_timer, kvm_s390_idle_wakeup,
@@ -273,7 +280,8 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm,
 	if (!vcpu)
 		goto out_nomem;
 
-	vcpu->arch.sie_block = (struct sie_block *) get_zeroed_page(GFP_KERNEL);
+	vcpu->arch.sie_block = (struct kvm_s390_sie_block *)
+					get_zeroed_page(GFP_KERNEL);
 
 	if (!vcpu->arch.sie_block)
 		goto out_free_cpu;
@@ -672,6 +680,10 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
 	return 0;
 }
 
+void kvm_arch_flush_shadow(struct kvm *kvm)
+{
+}
+
 gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn)
 {
 	return gfn;
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index c02286c6a93..cce40ff2913 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -157,7 +157,8 @@ static int handle_stfl(struct kvm_vcpu *vcpu)
 	int rc;
 
 	vcpu->stat.instruction_stfl++;
-	facility_list &= ~(1UL<<24); /* no stfle */
+	/* only pass the facility bits, which we can handle */
+	facility_list &= 0xfe00fff3;
 
 	rc = copy_to_guest(vcpu, offsetof(struct _lowcore, stfl_fac_list),
 			   &facility_list, sizeof(facility_list));
@@ -199,7 +200,7 @@ out:
 
 static void handle_stsi_3_2_2(struct kvm_vcpu *vcpu, struct sysinfo_3_2_2 *mem)
 {
-	struct float_interrupt *fi = &vcpu->kvm->arch.float_int;
+	struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int;
 	int cpus = 0;
 	int n;
 
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 0a236acfb5f..170392687ce 100644
--- a/arch/s390/kvm/sigp.c
+++ b/arch/s390/kvm/sigp.c
@@ -43,9 +43,10 @@
 #define SIGP_STAT_RECEIVER_CHECK    0x00000001UL
 
 
-static int __sigp_sense(struct kvm_vcpu *vcpu, u16 cpu_addr, u64 *reg)
+static int __sigp_sense(struct kvm_vcpu *vcpu, u16 cpu_addr,
+			unsigned long *reg)
 {
-	struct float_interrupt *fi = &vcpu->kvm->arch.float_int;
+	struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int;
 	int rc;
 
 	if (cpu_addr >= KVM_MAX_VCPUS)
@@ -71,9 +72,9 @@ static int __sigp_sense(struct kvm_vcpu *vcpu, u16 cpu_addr, u64 *reg)
 
 static int __sigp_emergency(struct kvm_vcpu *vcpu, u16 cpu_addr)
 {
-	struct float_interrupt *fi = &vcpu->kvm->arch.float_int;
-	struct local_interrupt *li;
-	struct interrupt_info *inti;
+	struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int;
+	struct kvm_s390_local_interrupt *li;
+	struct kvm_s390_interrupt_info *inti;
 	int rc;
 
 	if (cpu_addr >= KVM_MAX_VCPUS)
@@ -108,9 +109,9 @@ unlock:
 
 static int __sigp_stop(struct kvm_vcpu *vcpu, u16 cpu_addr, int store)
 {
-	struct float_interrupt *fi = &vcpu->kvm->arch.float_int;
-	struct local_interrupt *li;
-	struct interrupt_info *inti;
+	struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int;
+	struct kvm_s390_local_interrupt *li;
+	struct kvm_s390_interrupt_info *inti;
 	int rc;
 
 	if (cpu_addr >= KVM_MAX_VCPUS)
@@ -167,11 +168,11 @@ static int __sigp_set_arch(struct kvm_vcpu *vcpu, u32 parameter)
 }
 
 static int __sigp_set_prefix(struct kvm_vcpu *vcpu, u16 cpu_addr, u32 address,
-			     u64 *reg)
+			     unsigned long *reg)
 {
-	struct float_interrupt *fi = &vcpu->kvm->arch.float_int;
-	struct local_interrupt *li;
-	struct interrupt_info *inti;
+	struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int;
+	struct kvm_s390_local_interrupt *li;
+	struct kvm_s390_interrupt_info *inti;
 	int rc;
 	u8 tmp;
 
diff --git a/arch/s390/lib/delay.c b/arch/s390/lib/delay.c
index eae21a8ac72..6ccb9fab055 100644
--- a/arch/s390/lib/delay.c
+++ b/arch/s390/lib/delay.c
@@ -1,14 +1,9 @@
 /*
- *  arch/s390/lib/delay.c
  *    Precise Delay Loops for S390
  *
- *  S390 version
- *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
- *
- *  Derived from "arch/i386/lib/delay.c"
- *    Copyright (C) 1993 Linus Torvalds
- *    Copyright (C) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
+ *    Copyright IBM Corp. 1999,2008
+ *    Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ *		 Heiko Carstens <heiko.carstens@de.ibm.com>,
  */
 
 #include <linux/sched.h>
@@ -29,30 +24,31 @@ void __delay(unsigned long loops)
 	asm volatile("0: brct %0,0b" : : "d" ((loops/2) + 1));
 }
 
-/*
- * Waits for 'usecs' microseconds using the TOD clock comparator.
- */
-void __udelay(unsigned long usecs)
+static void __udelay_disabled(unsigned long usecs)
 {
-	u64 end, time, old_cc = 0;
-	unsigned long flags, cr0, mask, dummy;
-	int irq_context;
+	unsigned long mask, cr0, cr0_saved;
+	u64 clock_saved;
 
-	irq_context = in_interrupt();
-	if (!irq_context)
-		local_bh_disable();
-	local_irq_save(flags);
-	if (raw_irqs_disabled_flags(flags)) {
-		old_cc = S390_lowcore.clock_comparator;
-		S390_lowcore.clock_comparator = -1ULL;
-		__ctl_store(cr0, 0, 0);
-		dummy = (cr0 & 0xffff00e0) | 0x00000800;
-		__ctl_load(dummy , 0, 0);
-		mask = psw_kernel_bits | PSW_MASK_WAIT | PSW_MASK_EXT;
-	} else
-		mask = psw_kernel_bits | PSW_MASK_WAIT |
-			PSW_MASK_EXT | PSW_MASK_IO;
+	clock_saved = local_tick_disable();
+	set_clock_comparator(get_clock() + ((u64) usecs << 12));
+	__ctl_store(cr0_saved, 0, 0);
+	cr0 = (cr0_saved & 0xffff00e0) | 0x00000800;
+	__ctl_load(cr0 , 0, 0);
+	mask = psw_kernel_bits | PSW_MASK_WAIT | PSW_MASK_EXT;
+	trace_hardirqs_on();
+	__load_psw_mask(mask);
+	local_irq_disable();
+	__ctl_load(cr0_saved, 0, 0);
+	local_tick_enable(clock_saved);
+	set_clock_comparator(S390_lowcore.clock_comparator);
+}
+
+static void __udelay_enabled(unsigned long usecs)
+{
+	unsigned long mask;
+	u64 end, time;
 
+	mask = psw_kernel_bits | PSW_MASK_WAIT | PSW_MASK_EXT | PSW_MASK_IO;
 	end = get_clock() + ((u64) usecs << 12);
 	do {
 		time = end < S390_lowcore.clock_comparator ?
@@ -62,13 +58,50 @@ void __udelay(unsigned long usecs)
 		__load_psw_mask(mask);
 		local_irq_disable();
 	} while (get_clock() < end);
+	set_clock_comparator(S390_lowcore.clock_comparator);
+}
 
-	if (raw_irqs_disabled_flags(flags)) {
-		__ctl_load(cr0, 0, 0);
-		S390_lowcore.clock_comparator = old_cc;
+/*
+ * Waits for 'usecs' microseconds using the TOD clock comparator.
+ */
+void __udelay(unsigned long usecs)
+{
+	unsigned long flags;
+
+	preempt_disable();
+	local_irq_save(flags);
+	if (in_irq()) {
+		__udelay_disabled(usecs);
+		goto out;
 	}
-	if (!irq_context)
+	if (in_softirq()) {
+		if (raw_irqs_disabled_flags(flags))
+			__udelay_disabled(usecs);
+		else
+			__udelay_enabled(usecs);
+		goto out;
+	}
+	if (raw_irqs_disabled_flags(flags)) {
+		local_bh_disable();
+		__udelay_disabled(usecs);
 		_local_bh_enable();
-	set_clock_comparator(S390_lowcore.clock_comparator);
+		goto out;
+	}
+	__udelay_enabled(usecs);
+out:
 	local_irq_restore(flags);
+	preempt_enable();
+}
+
+/*
+ * Simple udelay variant. To be used on startup and reboot
+ * when the interrupt handler isn't working.
+ */
+void udelay_simple(unsigned long usecs)
+{
+	u64 end;
+
+	end = get_clock() + ((u64) usecs << 12);
+	while (get_clock() < end)
+		cpu_relax();
 }
diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c
index f231f5ec74b..580fc64cc73 100644
--- a/arch/s390/mm/extmem.c
+++ b/arch/s390/mm/extmem.c
@@ -43,20 +43,40 @@
 #define DCSS_FINDSEG    0x0c
 #define DCSS_LOADNOLY   0x10
 #define DCSS_SEGEXT     0x18
+#define DCSS_LOADSHRX	0x20
+#define DCSS_LOADNSRX	0x24
+#define DCSS_FINDSEGX	0x2c
+#define DCSS_SEGEXTX	0x38
 #define DCSS_FINDSEGA   0x0c
 
 struct qrange {
-	unsigned int  start; // 3byte start address, 1 byte type
-	unsigned int  end;   // 3byte end address, 1 byte reserved
+	unsigned long  start; /* last byte type */
+	unsigned long  end;   /* last byte reserved */
 };
 
 struct qout64 {
+	unsigned long segstart;
+	unsigned long segend;
+	int segcnt;
+	int segrcnt;
+	struct qrange range[6];
+};
+
+#ifdef CONFIG_64BIT
+struct qrange_old {
+	unsigned int start; /* last byte type */
+	unsigned int end;   /* last byte reserved */
+};
+
+/* output area format for the Diag x'64' old subcode x'18' */
+struct qout64_old {
 	int segstart;
 	int segend;
 	int segcnt;
 	int segrcnt;
-	struct qrange range[6];
+	struct qrange_old range[6];
 };
+#endif
 
 struct qin64 {
 	char qopcode;
@@ -86,6 +106,55 @@ static DEFINE_MUTEX(dcss_lock);
 static LIST_HEAD(dcss_list);
 static char *segtype_string[] = { "SW", "EW", "SR", "ER", "SN", "EN", "SC",
 					"EW/EN-MIXED" };
+static int loadshr_scode, loadnsr_scode, findseg_scode;
+static int segext_scode, purgeseg_scode;
+static int scode_set;
+
+/* set correct Diag x'64' subcodes. */
+static int
+dcss_set_subcodes(void)
+{
+#ifdef CONFIG_64BIT
+	char *name = kmalloc(8 * sizeof(char), GFP_DMA);
+	unsigned long rx, ry;
+	int rc;
+
+	if (name == NULL)
+		return -ENOMEM;
+
+	rx = (unsigned long) name;
+	ry = DCSS_FINDSEGX;
+
+	strcpy(name, "dummy");
+	asm volatile(
+		"	diag	%0,%1,0x64\n"
+		"0:	ipm	%2\n"
+		"	srl	%2,28\n"
+		"	j	2f\n"
+		"1:	la	%2,3\n"
+		"2:\n"
+		EX_TABLE(0b, 1b)
+		: "+d" (rx), "+d" (ry), "=d" (rc) : : "cc");
+
+	kfree(name);
+	/* Diag x'64' new subcodes are supported, set to new subcodes */
+	if (rc != 3) {
+		loadshr_scode = DCSS_LOADSHRX;
+		loadnsr_scode = DCSS_LOADNSRX;
+		purgeseg_scode = DCSS_PURGESEG;
+		findseg_scode = DCSS_FINDSEGX;
+		segext_scode = DCSS_SEGEXTX;
+		return 0;
+	}
+#endif
+	/* Diag x'64' new subcodes are not supported, set to old subcodes */
+	loadshr_scode = DCSS_LOADNOLY;
+	loadnsr_scode = DCSS_LOADNSR;
+	purgeseg_scode = DCSS_PURGESEG;
+	findseg_scode = DCSS_FINDSEG;
+	segext_scode = DCSS_SEGEXT;
+	return 0;
+}
 
 /*
  * Create the 8 bytes, ebcdic VM segment name from
@@ -135,25 +204,45 @@ segment_by_name (char *name)
  * Perform a function on a dcss segment.
  */
 static inline int
-dcss_diag (__u8 func, void *parameter,
+dcss_diag(int *func, void *parameter,
            unsigned long *ret1, unsigned long *ret2)
 {
 	unsigned long rx, ry;
 	int rc;
 
+	if (scode_set == 0) {
+		rc = dcss_set_subcodes();
+		if (rc < 0)
+			return rc;
+		scode_set = 1;
+	}
 	rx = (unsigned long) parameter;
-	ry = (unsigned long) func;
-	asm volatile(
+	ry = (unsigned long) *func;
+
 #ifdef CONFIG_64BIT
-		"	sam31\n"
-		"	diag	%0,%1,0x64\n"
-		"	sam64\n"
+	/* 64-bit Diag x'64' new subcode, keep in 64-bit addressing mode */
+	if (*func > DCSS_SEGEXT)
+		asm volatile(
+			"	diag	%0,%1,0x64\n"
+			"	ipm	%2\n"
+			"	srl	%2,28\n"
+			: "+d" (rx), "+d" (ry), "=d" (rc) : : "cc");
+	/* 31-bit Diag x'64' old subcode, switch to 31-bit addressing mode */
+	else
+		asm volatile(
+			"	sam31\n"
+			"	diag	%0,%1,0x64\n"
+			"	sam64\n"
+			"	ipm	%2\n"
+			"	srl	%2,28\n"
+			: "+d" (rx), "+d" (ry), "=d" (rc) : : "cc");
 #else
+	asm volatile(
 		"	diag	%0,%1,0x64\n"
-#endif
 		"	ipm	%2\n"
 		"	srl	%2,28\n"
 		: "+d" (rx), "+d" (ry), "=d" (rc) : : "cc");
+#endif
 	*ret1 = rx;
 	*ret2 = ry;
 	return rc;
@@ -190,14 +279,45 @@ query_segment_type (struct dcss_segment *seg)
 	qin->qoutlen = sizeof(struct qout64);
 	memcpy (qin->qname, seg->dcss_name, 8);
 
-	diag_cc = dcss_diag (DCSS_SEGEXT, qin, &dummy, &vmrc);
+	diag_cc = dcss_diag(&segext_scode, qin, &dummy, &vmrc);
 
+	if (diag_cc < 0) {
+		rc = diag_cc;
+		goto out_free;
+	}
 	if (diag_cc > 1) {
 		PRINT_WARN ("segment_type: diag returned error %ld\n", vmrc);
 		rc = dcss_diag_translate_rc (vmrc);
 		goto out_free;
 	}
 
+#ifdef CONFIG_64BIT
+	/* Only old format of output area of Diagnose x'64' is supported,
+	   copy data for the new format. */
+	if (segext_scode == DCSS_SEGEXT) {
+		struct qout64_old *qout_old;
+		qout_old = kzalloc(sizeof(struct qout64_old), GFP_DMA);
+		if (qout_old == NULL) {
+			rc = -ENOMEM;
+			goto out_free;
+		}
+		memcpy(qout_old, qout, sizeof(struct qout64_old));
+		qout->segstart = (unsigned long) qout_old->segstart;
+		qout->segend = (unsigned long) qout_old->segend;
+		qout->segcnt = qout_old->segcnt;
+		qout->segrcnt = qout_old->segrcnt;
+
+		if (qout->segcnt > 6)
+			qout->segrcnt = 6;
+		for (i = 0; i < qout->segrcnt; i++) {
+			qout->range[i].start =
+				(unsigned long) qout_old->range[i].start;
+			qout->range[i].end =
+				(unsigned long) qout_old->range[i].end;
+		}
+		kfree(qout_old);
+	}
+#endif
 	if (qout->segcnt > 6) {
 		rc = -ENOTSUPP;
 		goto out_free;
@@ -269,6 +389,30 @@ segment_type (char* name)
 }
 
 /*
+ * check if segment collides with other segments that are currently loaded
+ * returns 1 if this is the case, 0 if no collision was found
+ */
+static int
+segment_overlaps_others (struct dcss_segment *seg)
+{
+	struct list_head *l;
+	struct dcss_segment *tmp;
+
+	BUG_ON(!mutex_is_locked(&dcss_lock));
+	list_for_each(l, &dcss_list) {
+		tmp = list_entry(l, struct dcss_segment, list);
+		if ((tmp->start_addr >> 20) > (seg->end >> 20))
+			continue;
+		if ((tmp->end >> 20) < (seg->start_addr >> 20))
+			continue;
+		if (seg == tmp)
+			continue;
+		return 1;
+	}
+	return 0;
+}
+
+/*
  * real segment loading function, called from segment_load
  */
 static int
@@ -276,7 +420,8 @@ __segment_load (char *name, int do_nonshared, unsigned long *addr, unsigned long
 {
 	struct dcss_segment *seg = kmalloc(sizeof(struct dcss_segment),
 			GFP_DMA);
-	int dcss_command, rc, diag_cc;
+	int rc, diag_cc;
+	unsigned long start_addr, end_addr, dummy;
 
 	if (seg == NULL) {
 		rc = -ENOMEM;
@@ -287,6 +432,13 @@ __segment_load (char *name, int do_nonshared, unsigned long *addr, unsigned long
 	if (rc < 0)
 		goto out_free;
 
+	if (loadshr_scode == DCSS_LOADSHRX) {
+		if (segment_overlaps_others(seg)) {
+			rc = -EBUSY;
+			goto out_free;
+		}
+	}
+
 	rc = vmem_add_mapping(seg->start_addr, seg->end - seg->start_addr + 1);
 
 	if (rc)
@@ -316,20 +468,28 @@ __segment_load (char *name, int do_nonshared, unsigned long *addr, unsigned long
 	}
 
 	if (do_nonshared)
-		dcss_command = DCSS_LOADNSR;
+		diag_cc = dcss_diag(&loadnsr_scode, seg->dcss_name,
+				&start_addr, &end_addr);
 	else
-		dcss_command = DCSS_LOADNOLY;
-
-	diag_cc = dcss_diag(dcss_command, seg->dcss_name,
-			&seg->start_addr, &seg->end);
+		diag_cc = dcss_diag(&loadshr_scode, seg->dcss_name,
+				&start_addr, &end_addr);
+	if (diag_cc < 0) {
+		dcss_diag(&purgeseg_scode, seg->dcss_name,
+				&dummy, &dummy);
+		rc = diag_cc;
+		goto out_resource;
+	}
 	if (diag_cc > 1) {
 		PRINT_WARN ("segment_load: could not load segment %s - "
-				"diag returned error (%ld)\n",name,seg->end);
-		rc = dcss_diag_translate_rc (seg->end);
-		dcss_diag(DCSS_PURGESEG, seg->dcss_name,
-				&seg->start_addr, &seg->end);
+				"diag returned error (%ld)\n",
+				name, end_addr);
+		rc = dcss_diag_translate_rc(end_addr);
+		dcss_diag(&purgeseg_scode, seg->dcss_name,
+				&dummy, &dummy);
 		goto out_resource;
 	}
+	seg->start_addr = start_addr;
+	seg->end = end_addr;
 	seg->do_nonshared = do_nonshared;
 	atomic_set(&seg->ref_count, 1);
 	list_add(&seg->list, &dcss_list);
@@ -423,8 +583,8 @@ int
 segment_modify_shared (char *name, int do_nonshared)
 {
 	struct dcss_segment *seg;
-	unsigned long dummy;
-	int dcss_command, rc, diag_cc;
+	unsigned long start_addr, end_addr, dummy;
+	int rc, diag_cc;
 
 	mutex_lock(&dcss_lock);
 	seg = segment_by_name (name);
@@ -445,38 +605,51 @@ segment_modify_shared (char *name, int do_nonshared)
 		goto out_unlock;
 	}
 	release_resource(seg->res);
-	if (do_nonshared) {
-		dcss_command = DCSS_LOADNSR;
+	if (do_nonshared)
 		seg->res->flags &= ~IORESOURCE_READONLY;
-	} else {
-		dcss_command = DCSS_LOADNOLY;
+	else
 		if (seg->vm_segtype == SEG_TYPE_SR ||
 		    seg->vm_segtype == SEG_TYPE_ER)
 			seg->res->flags |= IORESOURCE_READONLY;
-	}
+
 	if (request_resource(&iomem_resource, seg->res)) {
 		PRINT_WARN("segment_modify_shared: could not reload segment %s"
 			   " - overlapping resources\n", name);
 		rc = -EBUSY;
 		kfree(seg->res);
-		goto out_del;
+		goto out_del_mem;
+	}
+
+	dcss_diag(&purgeseg_scode, seg->dcss_name, &dummy, &dummy);
+	if (do_nonshared)
+		diag_cc = dcss_diag(&loadnsr_scode, seg->dcss_name,
+				&start_addr, &end_addr);
+	else
+		diag_cc = dcss_diag(&loadshr_scode, seg->dcss_name,
+				&start_addr, &end_addr);
+	if (diag_cc < 0) {
+		rc = diag_cc;
+		goto out_del_res;
 	}
-	dcss_diag(DCSS_PURGESEG, seg->dcss_name, &dummy, &dummy);
-	diag_cc = dcss_diag(dcss_command, seg->dcss_name,
-			&seg->start_addr, &seg->end);
 	if (diag_cc > 1) {
 		PRINT_WARN ("segment_modify_shared: could not reload segment %s"
-				" - diag returned error (%ld)\n",name,seg->end);
-		rc = dcss_diag_translate_rc (seg->end);
-		goto out_del;
+				" - diag returned error (%ld)\n",
+				name, end_addr);
+		rc = dcss_diag_translate_rc(end_addr);
+		goto out_del_res;
 	}
+	seg->start_addr = start_addr;
+	seg->end = end_addr;
 	seg->do_nonshared = do_nonshared;
 	rc = 0;
 	goto out_unlock;
- out_del:
+ out_del_res:
+	release_resource(seg->res);
+	kfree(seg->res);
+ out_del_mem:
 	vmem_remove_mapping(seg->start_addr, seg->end - seg->start_addr + 1);
 	list_del(&seg->list);
-	dcss_diag(DCSS_PURGESEG, seg->dcss_name, &dummy, &dummy);
+	dcss_diag(&purgeseg_scode, seg->dcss_name, &dummy, &dummy);
 	kfree(seg);
  out_unlock:
 	mutex_unlock(&dcss_lock);
@@ -510,7 +683,7 @@ segment_unload(char *name)
 	kfree(seg->res);
 	vmem_remove_mapping(seg->start_addr, seg->end - seg->start_addr + 1);
 	list_del(&seg->list);
-	dcss_diag(DCSS_PURGESEG, seg->dcss_name, &dummy, &dummy);
+	dcss_diag(&purgeseg_scode, seg->dcss_name, &dummy, &dummy);
 	kfree(seg);
 out_unlock:
 	mutex_unlock(&dcss_lock);
@@ -545,7 +718,7 @@ segment_save(char *name)
 	endpfn = (seg->end) >> PAGE_SHIFT;
 	sprintf(cmd1, "DEFSEG %s", name);
 	for (i=0; i<seg->segcnt; i++) {
-		sprintf(cmd1+strlen(cmd1), " %X-%X %s",
+		sprintf(cmd1+strlen(cmd1), " %lX-%lX %s",
 			seg->range[i].start >> PAGE_SHIFT,
 			seg->range[i].end >> PAGE_SHIFT,
 			segtype_string[seg->range[i].start & 0xff]);
diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c
index f4b6124fdb7..f28c43d2f61 100644
--- a/arch/s390/mm/hugetlbpage.c
+++ b/arch/s390/mm/hugetlbpage.c
@@ -72,7 +72,8 @@ void arch_release_hugepage(struct page *page)
 	page[1].index = 0;
 }
 
-pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr)
+pte_t *huge_pte_alloc(struct mm_struct *mm,
+			unsigned long addr, unsigned long sz)
 {
 	pgd_t *pgdp;
 	pud_t *pudp;
@@ -119,6 +120,11 @@ int pmd_huge(pmd_t pmd)
 	return !!(pmd_val(pmd) & _SEGMENT_ENTRY_LARGE);
 }
 
+int pud_huge(pud_t pud)
+{
+	return 0;
+}
+
 struct page *follow_huge_pmd(struct mm_struct *mm, unsigned long address,
 			     pmd_t *pmdp, int write)
 {
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index 388cc742005..158b0d6d704 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -42,38 +42,6 @@ DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
 pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__((__aligned__(PAGE_SIZE)));
 char  empty_zero_page[PAGE_SIZE] __attribute__((__aligned__(PAGE_SIZE)));
 
-void show_mem(void)
-{
-	unsigned long i, total = 0, reserved = 0;
-	unsigned long shared = 0, cached = 0;
-	unsigned long flags;
-	struct page *page;
-	pg_data_t *pgdat;
-
-	printk("Mem-info:\n");
-	show_free_areas();
-	for_each_online_pgdat(pgdat) {
-		pgdat_resize_lock(pgdat, &flags);
-		for (i = 0; i < pgdat->node_spanned_pages; i++) {
-			if (!pfn_valid(pgdat->node_start_pfn + i))
-				continue;
-			page = pfn_to_page(pgdat->node_start_pfn + i);
-			total++;
-			if (PageReserved(page))
-				reserved++;
-			else if (PageSwapCache(page))
-				cached++;
-			else if (page_count(page))
-				shared += page_count(page) - 1;
-		}
-		pgdat_resize_unlock(pgdat, &flags);
-	}
-	printk("%ld pages of RAM\n", total);
-	printk("%ld reserved pages\n", reserved);
-	printk("%ld pages shared\n", shared);
-	printk("%ld pages swap cached\n", cached);
-}
-
 /*
  * paging_init() sets up the page tables
  */
@@ -211,7 +179,7 @@ int arch_add_memory(int nid, u64 start, u64 size)
 	int rc;
 
 	pgdat = NODE_DATA(nid);
-	zone = pgdat->node_zones + ZONE_NORMAL;
+	zone = pgdat->node_zones + ZONE_MOVABLE;
 	rc = vmem_add_mapping(start, size);
 	if (rc)
 		return rc;