Merge branch 'linus' into sched/core

Conflicts:
	kernel/Makefile

15 files changed, 119 insertions, 82 deletions

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 59d12788b60..7fa8f615ba6 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -148,6 +148,7 @@ config IA64_GENERIC
 	select ACPI_NUMA
 	select SWIOTLB
 	select PCI_MSI
+	select DMAR
 	help
 	  This selects the system type of your hardware.  A "generic" kernel
 	  will run on any supported IA-64 system.  However, if you configure
@@ -585,7 +586,7 @@ source "fs/Kconfig.binfmt"
 
 endmenu
 
-menu "Power management and ACPI"
+menu "Power management and ACPI options"
 
 source "kernel/power/Kconfig"
 
@@ -641,6 +642,8 @@ source "net/Kconfig"
 
 source "drivers/Kconfig"
 
+source "arch/ia64/hp/sim/Kconfig"
+
 config MSPEC
 	tristate "Memory special operations driver"
 	depends on IA64
@@ -652,6 +655,12 @@ config MSPEC
 
 source "fs/Kconfig"
 
+source "arch/ia64/Kconfig.debug"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
 source "arch/ia64/kvm/Kconfig"
 
 source "lib/Kconfig"
@@ -678,11 +687,3 @@ config IRQ_PER_CPU
 
 config IOMMU_HELPER
 	def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)
-
-source "arch/ia64/hp/sim/Kconfig"
-
-source "arch/ia64/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
diff --git a/arch/ia64/hp/common/hwsw_iommu.c b/arch/ia64/hp/common/hwsw_iommu.c
index 88b6e6f3fd8..2769dbfd03b 100644
--- a/arch/ia64/hp/common/hwsw_iommu.c
+++ b/arch/ia64/hp/common/hwsw_iommu.c
@@ -13,19 +13,12 @@
  */
 
 #include <linux/device.h>
+#include <linux/swiotlb.h>
 
 #include <asm/machvec.h>
 
 /* swiotlb declarations & definitions: */
 extern int swiotlb_late_init_with_default_size (size_t size);
-extern ia64_mv_dma_alloc_coherent	swiotlb_alloc_coherent;
-extern ia64_mv_dma_free_coherent	swiotlb_free_coherent;
-extern ia64_mv_dma_map_single_attrs	swiotlb_map_single_attrs;
-extern ia64_mv_dma_unmap_single_attrs	swiotlb_unmap_single_attrs;
-extern ia64_mv_dma_map_sg_attrs		swiotlb_map_sg_attrs;
-extern ia64_mv_dma_unmap_sg_attrs	swiotlb_unmap_sg_attrs;
-extern ia64_mv_dma_supported		swiotlb_dma_supported;
-extern ia64_mv_dma_mapping_error	swiotlb_dma_mapping_error;
 
 /* hwiommu declarations & definitions: */
 
diff --git a/arch/ia64/include/asm/io.h b/arch/ia64/include/asm/io.h
index 7f257507cd8..0d9d16e2d94 100644
--- a/arch/ia64/include/asm/io.h
+++ b/arch/ia64/include/asm/io.h
@@ -434,28 +434,4 @@ extern void memset_io(volatile void __iomem *s, int c, long n);
 
 # endif /* __KERNEL__ */
 
-/*
- * Enabling BIO_VMERGE_BOUNDARY forces us to turn off I/O MMU bypassing.  It is said that
- * BIO-level virtual merging can give up to 4% performance boost (not verified for ia64).
- * On the other hand, we know that I/O MMU bypassing gives ~8% performance improvement on
- * SPECweb-like workloads on zx1-based machines.  Thus, for now we favor I/O MMU bypassing
- * over BIO-level virtual merging.
- */
-extern unsigned long ia64_max_iommu_merge_mask;
-#if 1
-#define BIO_VMERGE_BOUNDARY	0
-#else
-/*
- * It makes no sense at all to have this BIO_VMERGE_BOUNDARY macro here.  Should be
- * replaced by dma_merge_mask() or something of that sort.  Note: the only way
- * BIO_VMERGE_BOUNDARY is used is to mask off bits.  Effectively, our definition gets
- * expanded into:
- *
- *	addr & ((ia64_max_iommu_merge_mask + 1) - 1) == (addr & ia64_max_iommu_vmerge_mask)
- *
- * which is precisely what we want.
- */
-#define BIO_VMERGE_BOUNDARY	(ia64_max_iommu_merge_mask + 1)
-#endif
-
 #endif /* _ASM_IA64_IO_H */
diff --git a/arch/ia64/include/asm/machvec.h b/arch/ia64/include/asm/machvec.h
index 1ea28bcee33..59c17e44668 100644
--- a/arch/ia64/include/asm/machvec.h
+++ b/arch/ia64/include/asm/machvec.h
@@ -11,6 +11,7 @@
 #define _ASM_IA64_MACHVEC_H
 
 #include <linux/types.h>
+#include <linux/swiotlb.h>
 
 /* forward declarations: */
 struct device;
@@ -298,27 +299,6 @@ extern void machvec_init_from_cmdline(const char *cmdline);
 # endif /* CONFIG_IA64_GENERIC */
 
 /*
- * Declare default routines which aren't declared anywhere else:
- */
-extern ia64_mv_dma_init			swiotlb_init;
-extern ia64_mv_dma_alloc_coherent	swiotlb_alloc_coherent;
-extern ia64_mv_dma_free_coherent	swiotlb_free_coherent;
-extern ia64_mv_dma_map_single		swiotlb_map_single;
-extern ia64_mv_dma_map_single_attrs	swiotlb_map_single_attrs;
-extern ia64_mv_dma_unmap_single		swiotlb_unmap_single;
-extern ia64_mv_dma_unmap_single_attrs	swiotlb_unmap_single_attrs;
-extern ia64_mv_dma_map_sg		swiotlb_map_sg;
-extern ia64_mv_dma_map_sg_attrs		swiotlb_map_sg_attrs;
-extern ia64_mv_dma_unmap_sg		swiotlb_unmap_sg;
-extern ia64_mv_dma_unmap_sg_attrs	swiotlb_unmap_sg_attrs;
-extern ia64_mv_dma_sync_single_for_cpu	swiotlb_sync_single_for_cpu;
-extern ia64_mv_dma_sync_sg_for_cpu	swiotlb_sync_sg_for_cpu;
-extern ia64_mv_dma_sync_single_for_device swiotlb_sync_single_for_device;
-extern ia64_mv_dma_sync_sg_for_device	swiotlb_sync_sg_for_device;
-extern ia64_mv_dma_mapping_error	swiotlb_dma_mapping_error;
-extern ia64_mv_dma_supported		swiotlb_dma_supported;
-
-/*
  * Define default versions so we can extend machvec for new platforms without having
  * to update the machvec files for all existing platforms.
  */
diff --git a/arch/ia64/include/asm/meminit.h b/arch/ia64/include/asm/meminit.h
index 6bc96ee5432..c0cea375620 100644
--- a/arch/ia64/include/asm/meminit.h
+++ b/arch/ia64/include/asm/meminit.h
@@ -48,7 +48,6 @@ extern int reserve_elfcorehdr(unsigned long *start, unsigned long *end);
  */
 #define GRANULEROUNDDOWN(n)	((n) & ~(IA64_GRANULE_SIZE-1))
 #define GRANULEROUNDUP(n)	(((n)+IA64_GRANULE_SIZE-1) & ~(IA64_GRANULE_SIZE-1))
-#define ORDERROUNDDOWN(n)	((n) & ~((PAGE_SIZE<<MAX_ORDER)-1))
 
 #ifdef CONFIG_NUMA
   extern void call_pernode_memory (unsigned long start, unsigned long len, void *func);
diff --git a/arch/ia64/include/asm/sal.h b/arch/ia64/include/asm/sal.h
index ea310c0812a..966797a97c9 100644
--- a/arch/ia64/include/asm/sal.h
+++ b/arch/ia64/include/asm/sal.h
@@ -337,11 +337,24 @@ typedef struct sal_log_record_header {
 #define sal_log_severity_fatal		1
 #define sal_log_severity_corrected	2
 
+/*
+ * Error Recovery Info (ERI) bit decode.  From SAL Spec section B.2.2 Table B-3
+ * Error Section Error_Recovery_Info Field Definition.
+ */
+#define ERI_NOT_VALID		0x0	/* Error Recovery Field is not valid */
+#define ERI_NOT_ACCESSIBLE	0x30	/* Resource not accessible */
+#define ERI_CONTAINMENT_WARN	0x22	/* Corrupt data propagated */
+#define ERI_UNCORRECTED_ERROR	0x20	/* Uncorrected error */
+#define ERI_COMPONENT_RESET	0x24	/* Component must be reset */
+#define ERI_CORR_ERROR_LOG	0x21	/* Corrected error, needs logging */
+#define ERI_CORR_ERROR_THRESH	0x29	/* Corrected error threshold exceeded */
+
 /* Definition of log section header structures */
 typedef struct sal_log_sec_header {
     efi_guid_t guid;			/* Unique Section ID */
     sal_log_revision_t revision;	/* Major and Minor revision of Section */
-    u16 reserved;
+    u8 error_recovery_info;		/* Platform error recovery status */
+    u8 reserved;
     u32 len;				/* Section length */
 } sal_log_section_hdr_t;
 
diff --git a/arch/ia64/include/asm/sn/sn_sal.h b/arch/ia64/include/asm/sn/sn_sal.h
index 57e649d388b..e310fc0135d 100644
--- a/arch/ia64/include/asm/sn/sn_sal.h
+++ b/arch/ia64/include/asm/sn/sn_sal.h
@@ -90,6 +90,8 @@
 #define  SN_SAL_SET_CPU_NUMBER			   0x02000068
 
 #define  SN_SAL_KERNEL_LAUNCH_EVENT		   0x02000069
+#define  SN_SAL_WATCHLIST_ALLOC			   0x02000070
+#define  SN_SAL_WATCHLIST_FREE			   0x02000071
 
 /*
  * Service-specific constants
@@ -1185,4 +1187,47 @@ ia64_sn_kernel_launch_event(void)
 	SAL_CALL_NOLOCK(rv, SN_SAL_KERNEL_LAUNCH_EVENT, 0, 0, 0, 0, 0, 0, 0);
 	return rv.status;
 }
+
+union sn_watchlist_u {
+	u64     val;
+	struct {
+		u64	blade	: 16,
+			size	: 32,
+			filler	: 16;
+	};
+};
+
+static inline int
+sn_mq_watchlist_alloc(int blade, void *mq, unsigned int mq_size,
+				unsigned long *intr_mmr_offset)
+{
+	struct ia64_sal_retval rv;
+	unsigned long addr;
+	union sn_watchlist_u size_blade;
+	int watchlist;
+
+	addr = (unsigned long)mq;
+	size_blade.size = mq_size;
+	size_blade.blade = blade;
+
+	/*
+	 * bios returns watchlist number or negative error number.
+	 */
+	ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_ALLOC, addr,
+			size_blade.val, (u64)intr_mmr_offset,
+			(u64)&watchlist, 0, 0, 0);
+	if (rv.status < 0)
+		return rv.status;
+
+	return watchlist;
+}
+
+static inline int
+sn_mq_watchlist_free(int blade, int watchlist_num)
+{
+	struct ia64_sal_retval rv;
+	ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_FREE, blade,
+			watchlist_num, 0, 0, 0, 0, 0);
+	return rv.status;
+}
 #endif /* _ASM_IA64_SN_SN_SAL_H */
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 0635015d0aa..bd7acc71e8a 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -678,6 +678,30 @@ static int __init acpi_parse_fadt(struct acpi_table_header *table)
 	return 0;
 }
 
+int __init early_acpi_boot_init(void)
+{
+	int ret;
+
+	/*
+	 * do a partial walk of MADT to determine how many CPUs
+	 * we have including offline CPUs
+	 */
+	if (acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) {
+		printk(KERN_ERR PREFIX "Can't find MADT\n");
+		return 0;
+	}
+
+	ret = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC,
+		acpi_parse_lsapic, NR_CPUS);
+	if (ret < 1)
+		printk(KERN_ERR PREFIX
+		       "Error parsing MADT - no LAPIC entries\n");
+
+	return 0;
+}
+
+
+
 int __init acpi_boot_init(void)
 {
 
@@ -701,11 +725,6 @@ int __init acpi_boot_init(void)
 		printk(KERN_ERR PREFIX
 		       "Error parsing LAPIC address override entry\n");
 
-	if (acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC, acpi_parse_lsapic, NR_CPUS)
-	    < 1)
-		printk(KERN_ERR PREFIX
-		       "Error parsing MADT - no LAPIC entries\n");
-
 	if (acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_NMI, acpi_parse_lapic_nmi, 0)
 	    < 0)
 		printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n");
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index 031abbf9c87..dbdb778efa0 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -12,13 +12,11 @@
 #include <asm/machvec.h>
 #include <linux/dma-mapping.h>
 
-#include <asm/machvec.h>
 #include <asm/system.h>
 
 #ifdef CONFIG_DMAR
 
 #include <linux/kernel.h>
-#include <linux/string.h>
 
 #include <asm/page.h>
 #include <asm/iommu.h>
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index ae7911702bf..865af27c773 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -359,7 +359,7 @@ reserve_memory (void)
 	}
 #endif
 
-#ifdef CONFIG_CRASH_KERNEL
+#ifdef CONFIG_CRASH_DUMP
 	if (reserve_elfcorehdr(&rsvd_region[n].start,
 			       &rsvd_region[n].end) == 0)
 		n++;
@@ -561,8 +561,12 @@ setup_arch (char **cmdline_p)
 #ifdef CONFIG_ACPI
 	/* Initialize the ACPI boot-time table parser */
 	acpi_table_init();
+	early_acpi_boot_init();
 # ifdef CONFIG_ACPI_NUMA
 	acpi_numa_init();
+#ifdef CONFIG_ACPI_HOTPLUG_CPU
+	prefill_possible_map();
+#endif
 	per_cpu_scan_finalize((cpus_weight(early_cpu_possible_map) == 0 ?
 		32 : cpus_weight(early_cpu_possible_map)),
 		additional_cpus > 0 ? additional_cpus : 0);
@@ -853,9 +857,6 @@ void __init
 setup_per_cpu_areas (void)
 {
 	/* start_kernel() requires this... */
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
-	prefill_possible_map();
-#endif
 }
 
 /*
diff --git a/arch/ia64/kvm/Kconfig b/arch/ia64/kvm/Kconfig
index 8e99fed6b3f..f833a0b4188 100644
--- a/arch/ia64/kvm/Kconfig
+++ b/arch/ia64/kvm/Kconfig
@@ -20,6 +20,8 @@ if VIRTUALIZATION
 config KVM
 	tristate "Kernel-based Virtual Machine (KVM) support"
 	depends on HAVE_KVM && EXPERIMENTAL
+	# for device assignment:
+	depends on PCI
 	select PREEMPT_NOTIFIERS
 	select ANON_INODES
 	---help---
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 3caac477de9..af1464f7a6a 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -673,16 +673,16 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 
 	vcpu_load(vcpu);
 
+	if (vcpu->sigset_active)
+		sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);
+
 	if (unlikely(vcpu->arch.mp_state == KVM_MP_STATE_UNINITIALIZED)) {
 		kvm_vcpu_block(vcpu);
 		clear_bit(KVM_REQ_UNHALT, &vcpu->requests);
-		vcpu_put(vcpu);
-		return -EAGAIN;
+		r = -EAGAIN;
+		goto out;
 	}
 
-	if (vcpu->sigset_active)
-		sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);
-
 	if (vcpu->mmio_needed) {
 		memcpy(vcpu->mmio_data, kvm_run->mmio.data, 8);
 		kvm_set_mmio_data(vcpu);
@@ -690,7 +690,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 		vcpu->mmio_needed = 0;
 	}
 	r = __vcpu_run(vcpu, kvm_run);
-
+out:
 	if (vcpu->sigset_active)
 		sigprocmask(SIG_SETMASK, &sigsaved, NULL);
 
diff --git a/arch/ia64/kvm/vcpu.h b/arch/ia64/kvm/vcpu.h
index 341e3fee280..e9b2a4e121c 100644
--- a/arch/ia64/kvm/vcpu.h
+++ b/arch/ia64/kvm/vcpu.h
@@ -384,6 +384,10 @@ static inline u64 __gpfn_is_io(u64 gpfn)
 #define MODE_IND(psr)	\
 	(((psr).it << 2) + ((psr).dt << 1) + (psr).rt)
 
+#ifndef CONFIG_SMP
+#define _vmm_raw_spin_lock(x)	 do {}while(0)
+#define _vmm_raw_spin_unlock(x) do {}while(0)
+#else
 #define _vmm_raw_spin_lock(x)						\
 	do {								\
 		__u32 *ia64_spinlock_ptr = (__u32 *) (x);		\
@@ -403,6 +407,7 @@ static inline u64 __gpfn_is_io(u64 gpfn)
 	do { barrier();				\
 		((spinlock_t *)x)->raw_lock.lock = 0; } \
 while (0)
+#endif
 
 void vmm_spin_lock(spinlock_t *lock);
 void vmm_spin_unlock(spinlock_t *lock);
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index d8c5fcd89e5..d85ba98d900 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -635,7 +635,6 @@ static __init int count_node_pages(unsigned long start, unsigned long len, int n
 			(min(end, __pa(MAX_DMA_ADDRESS)) - start) >>PAGE_SHIFT;
 #endif
 	start = GRANULEROUNDDOWN(start);
-	start = ORDERROUNDDOWN(start);
 	end = GRANULEROUNDUP(end);
 	mem_data[node].max_pfn = max(mem_data[node].max_pfn,
 				     end >> PAGE_SHIFT);
diff --git a/arch/ia64/uv/kernel/setup.c b/arch/ia64/uv/kernel/setup.c
index cf5f28ae96c..7a5ae633198 100644
--- a/arch/ia64/uv/kernel/setup.c
+++ b/arch/ia64/uv/kernel/setup.c
@@ -19,6 +19,12 @@ EXPORT_PER_CPU_SYMBOL_GPL(__uv_hub_info);
 
 #ifdef CONFIG_IA64_SGI_UV
 int sn_prom_type;
+long sn_partition_id;
+EXPORT_SYMBOL(sn_partition_id);
+long sn_coherency_id;
+EXPORT_SYMBOL_GPL(sn_coherency_id);
+long sn_region_size;
+EXPORT_SYMBOL(sn_region_size);
 #endif
 
 struct redir_addr {