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-rw-r--r--include/asm-s390/compat.h28
-rw-r--r--include/asm-s390/etr.h219
-rw-r--r--include/asm-s390/hardirq.h2
-rw-r--r--include/asm-s390/io.h4
-rw-r--r--include/asm-s390/kdebug.h3
-rw-r--r--include/asm-s390/lowcore.h6
-rw-r--r--include/asm-s390/mmu_context.h50
-rw-r--r--include/asm-s390/pgalloc.h85
-rw-r--r--include/asm-s390/pgtable.h147
-rw-r--r--include/asm-s390/processor.h27
-rw-r--r--include/asm-s390/ptrace.h11
-rw-r--r--include/asm-s390/reset.h3
-rw-r--r--include/asm-s390/sclp.h39
-rw-r--r--include/asm-s390/sections.h2
-rw-r--r--include/asm-s390/setup.h23
-rw-r--r--include/asm-s390/sfp-util.h66
-rw-r--r--include/asm-s390/smp.h6
-rw-r--r--include/asm-s390/system.h4
-rw-r--r--include/asm-s390/tape390.h72
-rw-r--r--include/asm-s390/timer.h3
-rw-r--r--include/asm-s390/timex.h50
-rw-r--r--include/asm-s390/tlbflush.h9
-rw-r--r--include/asm-s390/uaccess.h2
23 files changed, 790 insertions, 71 deletions
diff --git a/include/asm-s390/compat.h b/include/asm-s390/compat.h
index 356a0b18353..296f4f1a20e 100644
--- a/include/asm-s390/compat.h
+++ b/include/asm-s390/compat.h
@@ -6,6 +6,34 @@
#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;
diff --git a/include/asm-s390/etr.h b/include/asm-s390/etr.h
new file mode 100644
index 00000000000..b498f19bb9a
--- /dev/null
+++ b/include/asm-s390/etr.h
@@ -0,0 +1,219 @@
+/*
+ * 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_interruption_parameter {
+ 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 */
+extern void etr_switch_to_local(void);
+extern void etr_sync_check(void);
+
+#endif /* __S390_ETR_H */
diff --git a/include/asm-s390/hardirq.h b/include/asm-s390/hardirq.h
index c2f6a8782d3..31beb18cb3d 100644
--- a/include/asm-s390/hardirq.h
+++ b/include/asm-s390/hardirq.h
@@ -32,6 +32,6 @@ typedef struct {
#define HARDIRQ_BITS 8
-extern void account_ticks(void);
+extern void account_ticks(u64 time);
#endif /* __ASM_HARDIRQ_H */
diff --git a/include/asm-s390/io.h b/include/asm-s390/io.h
index efb7de9c1c6..a4c2d550dad 100644
--- a/include/asm-s390/io.h
+++ b/include/asm-s390/io.h
@@ -28,11 +28,7 @@ static inline unsigned long virt_to_phys(volatile void * address)
{
unsigned long real_address;
asm volatile(
-#ifndef __s390x__
" lra %0,0(%1)\n"
-#else /* __s390x__ */
- " lrag %0,0(%1)\n"
-#endif /* __s390x__ */
" jz 0f\n"
" la %0,0\n"
"0:"
diff --git a/include/asm-s390/kdebug.h b/include/asm-s390/kdebug.h
index 40cc68025e0..1b50f89819a 100644
--- a/include/asm-s390/kdebug.h
+++ b/include/asm-s390/kdebug.h
@@ -26,7 +26,6 @@ extern int register_page_fault_notifier(struct notifier_block *);
extern int unregister_page_fault_notifier(struct notifier_block *);
extern struct atomic_notifier_head s390die_chain;
-
enum die_val {
DIE_OOPS = 1,
DIE_BPT,
@@ -56,4 +55,6 @@ static inline int notify_die(enum die_val val, const char *str,
return atomic_notifier_call_chain(&s390die_chain, val, &args);
}
+extern void die(const char *, struct pt_regs *, long);
+
#endif
diff --git a/include/asm-s390/lowcore.h b/include/asm-s390/lowcore.h
index 74f7389bd3e..4a31d0a7ee8 100644
--- a/include/asm-s390/lowcore.h
+++ b/include/asm-s390/lowcore.h
@@ -220,7 +220,8 @@ struct _lowcore
__u32 kernel_asce; /* 0xc4c */
__u32 user_asce; /* 0xc50 */
__u32 panic_stack; /* 0xc54 */
- __u8 pad10[0xc60-0xc58]; /* 0xc58 */
+ __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 */
@@ -310,7 +311,8 @@ struct _lowcore
__u64 kernel_asce; /* 0xd58 */
__u64 user_asce; /* 0xd60 */
__u64 panic_stack; /* 0xd68 */
- __u8 pad10[0xd80-0xd70]; /* 0xd70 */
+ __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 */
diff --git a/include/asm-s390/mmu_context.h b/include/asm-s390/mmu_context.h
index bcf24a87387..1d21da220d4 100644
--- a/include/asm-s390/mmu_context.h
+++ b/include/asm-s390/mmu_context.h
@@ -9,6 +9,7 @@
#ifndef __S390_MMU_CONTEXT_H
#define __S390_MMU_CONTEXT_H
+#include <asm/pgalloc.h>
/*
* get a new mmu context.. S390 don't know about contexts.
*/
@@ -16,29 +17,44 @@
#define destroy_context(mm) do { } while (0)
+#ifndef __s390x__
+#define LCTL_OPCODE "lctl"
+#define PGTABLE_BITS (_SEGMENT_TABLE|USER_STD_MASK)
+#else
+#define LCTL_OPCODE "lctlg"
+#define PGTABLE_BITS (_REGION_TABLE|USER_STD_MASK)
+#endif
+
static inline void enter_lazy_tlb(struct mm_struct *mm,
struct task_struct *tsk)
{
}
static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
- struct task_struct *tsk)
+ struct task_struct *tsk)
{
- if (prev != next) {
-#ifndef __s390x__
- S390_lowcore.user_asce = (__pa(next->pgd)&PAGE_MASK) |
- (_SEGMENT_TABLE|USER_STD_MASK);
- /* Load home space page table origin. */
- asm volatile("lctl 13,13,%0"
- : : "m" (S390_lowcore.user_asce) );
-#else /* __s390x__ */
- S390_lowcore.user_asce = (__pa(next->pgd) & PAGE_MASK) |
- (_REGION_TABLE|USER_STD_MASK);
- /* Load home space page table origin. */
- asm volatile("lctlg 13,13,%0"
- : : "m" (S390_lowcore.user_asce) );
-#endif /* __s390x__ */
- }
+ pgd_t *shadow_pgd = get_shadow_pgd(next->pgd);
+
+ if (prev != next) {
+ S390_lowcore.user_asce = (__pa(next->pgd) & PAGE_MASK) |
+ PGTABLE_BITS;
+ if (shadow_pgd) {
+ /* Load primary/secondary space page table origin. */
+ S390_lowcore.user_exec_asce =
+ (__pa(shadow_pgd) & PAGE_MASK) | PGTABLE_BITS;
+ asm volatile(LCTL_OPCODE" 1,1,%0\n"
+ LCTL_OPCODE" 7,7,%1"
+ : : "m" (S390_lowcore.user_exec_asce),
+ "m" (S390_lowcore.user_asce) );
+ } else if (switch_amode) {
+ /* Load primary space page table origin. */
+ asm volatile(LCTL_OPCODE" 1,1,%0"
+ : : "m" (S390_lowcore.user_asce) );
+ } else
+ /* Load home space page table origin. */
+ asm volatile(LCTL_OPCODE" 13,13,%0"
+ : : "m" (S390_lowcore.user_asce) );
+ }
cpu_set(smp_processor_id(), next->cpu_vm_mask);
}
@@ -51,4 +67,4 @@ static inline void activate_mm(struct mm_struct *prev,
set_fs(current->thread.mm_segment);
}
-#endif
+#endif /* __S390_MMU_CONTEXT_H */
diff --git a/include/asm-s390/pgalloc.h b/include/asm-s390/pgalloc.h
index 0707a7e2fc1..56c8a6c80e2 100644
--- a/include/asm-s390/pgalloc.h
+++ b/include/asm-s390/pgalloc.h
@@ -47,6 +47,17 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
if (!pgd)
return NULL;
+ if (s390_noexec) {
+ pgd_t *shadow_pgd = (pgd_t *)
+ __get_free_pages(GFP_KERNEL, PGD_ALLOC_ORDER);
+ struct page *page = virt_to_page(pgd);
+
+ if (!shadow_pgd) {
+ free_pages((unsigned long) pgd, PGD_ALLOC_ORDER);
+ return NULL;
+ }
+ page->lru.next = (void *) shadow_pgd;
+ }
for (i = 0; i < PTRS_PER_PGD; i++)
#ifndef __s390x__
pmd_clear(pmd_offset(pgd + i, i*PGDIR_SIZE));
@@ -58,6 +69,10 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
static inline void pgd_free(pgd_t *pgd)
{
+ pgd_t *shadow_pgd = get_shadow_pgd(pgd);
+
+ if (shadow_pgd)
+ free_pages((unsigned long) shadow_pgd, PGD_ALLOC_ORDER);
free_pages((unsigned long) pgd, PGD_ALLOC_ORDER);
}
@@ -71,6 +86,7 @@ static inline void pgd_free(pgd_t *pgd)
#define pmd_free(x) do { } while (0)
#define __pmd_free_tlb(tlb,x) do { } while (0)
#define pgd_populate(mm, pmd, pte) BUG()
+#define pgd_populate_kernel(mm, pmd, pte) BUG()
#else /* __s390x__ */
static inline pmd_t * pmd_alloc_one(struct mm_struct *mm, unsigned long vmaddr)
{
@@ -79,6 +95,17 @@ static inline pmd_t * pmd_alloc_one(struct mm_struct *mm, unsigned long vmaddr)
if (!pmd)
return NULL;
+ if (s390_noexec) {
+ pmd_t *shadow_pmd = (pmd_t *)
+ __get_free_pages(GFP_KERNEL, PMD_ALLOC_ORDER);
+ struct page *page = virt_to_page(pmd);
+
+ if (!shadow_pmd) {
+ free_pages((unsigned long) pmd, PMD_ALLOC_ORDER);
+ return NULL;
+ }
+ page->lru.next = (void *) shadow_pmd;
+ }
for (i=0; i < PTRS_PER_PMD; i++)
pmd_clear(pmd + i);
return pmd;
@@ -86,6 +113,10 @@ static inline pmd_t * pmd_alloc_one(struct mm_struct *mm, unsigned long vmaddr)
static inline void pmd_free (pmd_t *pmd)
{
+ pmd_t *shadow_pmd = get_shadow_pmd(pmd);
+
+ if (shadow_pmd)
+ free_pages((unsigned long) shadow_pmd, PMD_ALLOC_ORDER);
free_pages((unsigned long) pmd, PMD_ALLOC_ORDER);
}
@@ -95,11 +126,22 @@ static inline void pmd_free (pmd_t *pmd)
pmd_free(pmd); \
} while (0)
-static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
+static inline void
+pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
{
pgd_val(*pgd) = _PGD_ENTRY | __pa(pmd);
}
+static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
+{
+ pgd_t *shadow_pgd = get_shadow_pgd(pgd);
+ pmd_t *shadow_pmd = get_shadow_pmd(pmd);
+
+ if (shadow_pgd && shadow_pmd)
+ pgd_populate_kernel(mm, shadow_pgd, shadow_pmd);
+ pgd_populate_kernel(mm, pgd, pmd);
+}
+
#endif /* __s390x__ */
static inline void
@@ -119,7 +161,13 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
static inline void
pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *page)
{
- pmd_populate_kernel(mm, pmd, (pte_t *)page_to_phys(page));
+ pte_t *pte = (pte_t *)page_to_phys(page);
+ pmd_t *shadow_pmd = get_shadow_pmd(pmd);
+ pte_t *shadow_pte = get_shadow_pte(pte);
+
+ pmd_populate_kernel(mm, pmd, pte);
+ if (shadow_pmd && shadow_pte)
+ pmd_populate_kernel(mm, shadow_pmd, shadow_pte);
}
/*
@@ -133,6 +181,17 @@ pte_alloc_one_kernel(struct mm_struct *mm, unsigned long vmaddr)
if (!pte)
return NULL;
+ if (s390_noexec) {
+ pte_t *shadow_pte = (pte_t *)
+ __get_free_page(GFP_KERNEL|__GFP_REPEAT);
+ struct page *page = virt_to_page(pte);
+
+ if (!shadow_pte) {
+ free_page((unsigned long) pte);
+ return NULL;
+ }
+ page->lru.next = (void *) shadow_pte;
+ }
for (i=0; i < PTRS_PER_PTE; i++) {
pte_clear(mm, vmaddr, pte + i);
vmaddr += PAGE_SIZE;
@@ -151,14 +210,30 @@ pte_alloc_one(struct mm_struct *mm, unsigned long vmaddr)
static inline void pte_free_kernel(pte_t *pte)
{
- free_page((unsigned long) pte);
+ pte_t *shadow_pte = get_shadow_pte(pte);
+
+ if (shadow_pte)
+ free_page((unsigned long) shadow_pte);
+ free_page((unsigned long) pte);
}
static inline void pte_free(struct page *pte)
{
- __free_page(pte);
+ struct page *shadow_page = get_shadow_page(pte);
+
+ if (shadow_page)
+ __free_page(shadow_page);
+ __free_page(pte);
}
-#define __pte_free_tlb(tlb,pte) tlb_remove_page(tlb,pte)
+#define __pte_free_tlb(tlb, pte) \
+({ \
+ struct mmu_gather *__tlb = (tlb); \
+ struct page *__pte = (pte); \
+ struct page *shadow_page = get_shadow_page(__pte); \
+ if (shadow_page) \
+ tlb_remove_page(__tlb, shadow_page); \
+ tlb_remove_page(__tlb, __pte); \
+})
#endif /* _S390_PGALLOC_H */
diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h
index ae61aca5d48..13c16546eff 100644
--- a/include/asm-s390/pgtable.h
+++ b/include/asm-s390/pgtable.h
@@ -40,6 +40,7 @@ struct mm_struct;
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
@@ -223,6 +224,8 @@ extern unsigned long vmalloc_end;
#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
/*
* PTE type bits are rather complicated. handle_pte_fault uses pte_present,
@@ -243,11 +246,13 @@ extern unsigned long vmalloc_end;
* _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, 1100
+ * 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, 1010 and 1110 are invalid.
+ * swap pte is 1011 and 0001, 0011, 0101, 0111 are invalid.
*/
#ifndef __s390x__
@@ -312,33 +317,100 @@ extern unsigned long vmalloc_end;
#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
/*
- * The S390 can't do page protection for execute, and considers that the
- * same are read. Also, write permissions imply read permissions. This is
- * the closest we can get..
+ * 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_RO
-#define __P101 PAGE_RO
-#define __P110 PAGE_RO
-#define __P111 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_RO
-#define __S101 PAGE_RO
-#define __S110 PAGE_RW
-#define __S111 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 PMD_SHADOW_SHIFT 1
+# define PGD_SHADOW_SHIFT 1
+#else /* __s390x__ */
+# define PMD_SHADOW_SHIFT 2
+# define PGD_SHADOW_SHIFT 2
+#endif /* __s390x__ */
+
+static inline struct page *get_shadow_page(struct page *page)
+{
+ if (s390_noexec && !list_empty(&page->lru))
+ return virt_to_page(page->lru.next);
+ return NULL;
+}
+
+static inline pte_t *get_shadow_pte(pte_t *ptep)
+{
+ unsigned long pteptr = (unsigned long) (ptep);
+
+ if (s390_noexec) {
+ unsigned long offset = pteptr & (PAGE_SIZE - 1);
+ void *addr = (void *) (pteptr ^ offset);
+ struct page *page = virt_to_page(addr);
+ if (!list_empty(&page->lru))
+ return (pte_t *) ((unsigned long) page->lru.next |
+ offset);
+ }
+ return NULL;
+}
+
+static inline pmd_t *get_shadow_pmd(pmd_t *pmdp)
+{
+ unsigned long pmdptr = (unsigned long) (pmdp);
+
+ if (s390_noexec) {
+ unsigned long offset = pmdptr &
+ ((PAGE_SIZE << PMD_SHADOW_SHIFT) - 1);
+ void *addr = (void *) (pmdptr ^ offset);
+ struct page *page = virt_to_page(addr);
+ if (!list_empty(&page->lru))
+ return (pmd_t *) ((unsigned long) page->lru.next |
+ offset);
+ }
+ return NULL;
+}
+
+static inline pgd_t *get_shadow_pgd(pgd_t *pgdp)
+{
+ unsigned long pgdptr = (unsigned long) (pgdp);
+
+ if (s390_noexec) {
+ unsigned long offset = pgdptr &
+ ((PAGE_SIZE << PGD_SHADOW_SHIFT) - 1);
+ void *addr = (void *) (pgdptr ^ offset);
+ struct page *page = virt_to_page(addr);
+ if (!list_empty(&page->lru))
+ return (pgd_t *) ((unsigned long) page->lru.next |
+ offset);
+ }
+ return NULL;
+}
/*
* Certain architectures need to do special things when PTEs
@@ -347,7 +419,16 @@ extern unsigned long vmalloc_end;
*/
static inline void set_pte(pte_t *pteptr, pte_t pteval)
{
+ pte_t *shadow_pte = get_shadow_pte(pteptr);
+
*pteptr = pteval;
+ if (shadow_pte) {
+ if (!(pte_val(pteval) & _PAGE_INVALID) &&
+ (pte_val(pteval) & _PAGE_SWX))
+ pte_val(*shadow_pte) = pte_val(pteval) | _PAGE_RO;
+ else
+ pte_val(*shadow_pte) = _PAGE_TYPE_EMPTY;
+ }
}
#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
@@ -465,7 +546,7 @@ static inline int pte_read(pte_t pte)
static inline void pgd_clear(pgd_t * pgdp) { }
-static inline void pmd_clear(pmd_t * pmdp)
+static inline void pmd_clear_kernel(pmd_t * pmdp)
{
pmd_val(pmdp[0]) = _PAGE_TABLE_INV;
pmd_val(pmdp[1]) = _PAGE_TABLE_INV;
@@ -473,24 +554,55 @@ static inline void pmd_clear(pmd_t * pmdp)
pmd_val(pmdp[3]) = _PAGE_TABLE_INV;
}
+static inline void pmd_clear(pmd_t * pmdp)
+{
+ pmd_t *shadow_pmd = get_shadow_pmd(pmdp);
+
+ pmd_clear_kernel(pmdp);
+ if (shadow_pmd)
+ pmd_clear_kernel(shadow_pmd);
+}
+
#else /* __s390x__ */
-static inline void pgd_clear(pgd_t * pgdp)
+static inline void pgd_clear_kernel(pgd_t * pgdp)
{
pgd_val(*pgdp) = _PGD_ENTRY_INV | _PGD_ENTRY;
}
-static inline void pmd_clear(pmd_t * pmdp)
+static inline void pgd_clear(pgd_t * pgdp)
+{
+ pgd_t *shadow_pgd = get_shadow_pgd(pgdp);
+
+ pgd_clear_kernel(pgdp);
+ if (shadow_pgd)
+ pgd_clear_kernel(shadow_pgd);
+}
+
+static inline void pmd_clear_kernel(pmd_t * pmdp)
{
pmd_val(*pmdp) = _PMD_ENTRY_INV | _PMD_ENTRY;
pmd_val1(*pmdp) = _PMD_ENTRY_INV | _PMD_ENTRY;
}
+static inline void pmd_clear(pmd_t * pmdp)
+{
+ pmd_t *shadow_pmd = get_shadow_pmd(pmdp);
+
+ pmd_clear_kernel(pmdp);
+ if (shadow_pmd)
+ pmd_clear_kernel(shadow_pmd);
+}
+
#endif /* __s390x__ */
static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
{
+ pte_t *shadow_pte = get_shadow_pte(ptep);
+
pte_val(*ptep) = _PAGE_TYPE_EMPTY;
+ if (shadow_pte)
+ pte_val(*shadow_pte) = _PAGE_TYPE_EMPTY;
}
/*
@@ -608,8 +720,11 @@ ptep_clear_flush(struct vm_area_struct *vma,
unsigned long address, pte_t *ptep)
{
pte_t pte = *ptep;
+ pte_t *shadow_pte = get_shadow_pte(ptep);
__ptep_ipte(address, ptep);
+ if (shadow_pte)
+ __ptep_ipte(address, shadow_pte);
return pte;
}
diff --git a/include/asm-s390/processor.h b/include/asm-s390/processor.h
index cbbedc63ba2..4c1b7394035 100644
--- a/include/asm-s390/processor.h
+++ b/include/asm-s390/processor.h
@@ -50,6 +50,7 @@ struct cpuinfo_S390
unsigned long pgtable_cache_sz;
};
+extern void s390_adjust_jiffies(void);
extern void print_cpu_info(struct cpuinfo_S390 *);
/* Lazy FPU handling on uni-processor */
@@ -144,7 +145,8 @@ struct stack_frame {
#ifndef __s390x__
#define start_thread(regs, new_psw, new_stackp) do { \
- regs->psw.mask = PSW_USER_BITS; \
+ 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)
@@ -152,13 +154,15 @@ struct stack_frame {
#else /* __s390x__ */
#define start_thread(regs, new_psw, new_stackp) do { \
- regs->psw.mask = PSW_USER_BITS; \
+ set_fs(USER_DS); \
+ regs->psw.mask = psw_user_bits; \
regs->psw.addr = new_psw; \
regs->gprs[15] = new_stackp; \
} while (0)
#define start_thread31(regs, new_psw, new_stackp) do { \
- regs->psw.mask = PSW_USER32_BITS; \
+ set_fs(USER_DS); \
+ regs->psw.mask = psw_user32_bits; \
regs->psw.addr = new_psw; \
regs->gprs[15] = new_stackp; \
} while (0)
@@ -201,9 +205,8 @@ unsigned long get_wchan(struct task_struct *p);
static inline void cpu_relax(void)
{
if (MACHINE_HAS_DIAG44)
- asm volatile("diag 0,0,68" : : : "memory");
- else
- barrier();
+ asm volatile("diag 0,0,68");
+ barrier();
}
/*
@@ -328,6 +331,18 @@ static inline void disabled_wait(unsigned long code)
}
/*
+ * 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);
+
+/*
* CPU idle notifier chain.
*/
#define CPU_IDLE 0
diff --git a/include/asm-s390/ptrace.h b/include/asm-s390/ptrace.h
index 7b768c5c68a..fa6ca87080e 100644
--- a/include/asm-s390/ptrace.h
+++ b/include/asm-s390/ptrace.h
@@ -266,17 +266,12 @@ typedef struct
#define PSW_ASC_SECONDARY 0x0000800000000000UL
#define PSW_ASC_HOME 0x0000C00000000000UL
-#define PSW_USER32_BITS (PSW_BASE32_BITS | PSW_MASK_DAT | PSW_ASC_HOME | \
- PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK | \
- PSW_MASK_PSTATE | PSW_DEFAULT_KEY)
+extern long psw_user32_bits;
#endif /* __s390x__ */
-#define PSW_KERNEL_BITS (PSW_BASE_BITS | PSW_MASK_DAT | PSW_ASC_PRIMARY | \
- PSW_MASK_MCHECK | PSW_DEFAULT_KEY)
-#define PSW_USER_BITS (PSW_BASE_BITS | PSW_MASK_DAT | PSW_ASC_HOME | \
- PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK | \
- PSW_MASK_PSTATE | PSW_DEFAULT_KEY)
+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
diff --git a/include/asm-s390/reset.h b/include/asm-s390/reset.h
index 532e65a2aaf..f584f4a5258 100644
--- a/include/asm-s390/reset.h
+++ b/include/asm-s390/reset.h
@@ -18,7 +18,4 @@ struct reset_call {
extern void register_reset_call(struct reset_call *reset);
extern void unregister_reset_call(struct reset_call *reset);
extern void s390_reset_system(void);
-extern void (*s390_reset_mcck_handler)(void);
-extern void (*s390_reset_pgm_handler)(void);
-
#endif /* _ASM_S390_RESET_H */
diff --git a/include/asm-s390/sclp.h b/include/asm-s390/sclp.h
new file mode 100644
index 00000000000..468b9701840
--- /dev/null
+++ b/include/asm-s390/sclp.h
@@ -0,0 +1,39 @@
+/*
+ * 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>
+
+struct sccb_header {
+ u16 length;
+ u8 function_code;
+ u8 control_mask[3];
+ u16 response_code;
+} __attribute__((packed));
+
+#define LOADPARM_LEN 8
+
+struct sclp_readinfo_sccb {
+ struct sccb_header header; /* 0-7 */
+ u16 rnmax; /* 8-9 */
+ u8 rnsize; /* 10 */
+ u8 _reserved0[24 - 11]; /* 11-23 */
+ u8 loadparm[LOADPARM_LEN]; /* 24-31 */
+ u8 _reserved1[91 - 32]; /* 32-90 */
+ u8 flags; /* 91 */
+ u8 _reserved2[100 - 92]; /* 92-99 */
+ u32 rnsize2; /* 100-103 */
+ u64 rnmax2; /* 104-111 */
+ u8 _reserved3[4096 - 112]; /* 112-4095 */
+} __attribute__((packed, aligned(4096)));
+
+extern struct sclp_readinfo_sccb s390_readinfo_sccb;
+extern void sclp_readinfo_early(void);
+
+#endif /* _ASM_S390_SCLP_H */
diff --git a/include/asm-s390/sections.h b/include/asm-s390/sections.h
index 3a0b8ffeab7..1c5a2c4ccda 100644
--- a/include/asm-s390/sections.h
+++ b/include/asm-s390/sections.h
@@ -3,4 +3,6 @@
#include <asm-generic/sections.h>
+extern char _eshared[];
+
#endif
diff --git a/include/asm-s390/setup.h b/include/asm-s390/setup.h
index 9574fe80a04..3388bb52597 100644
--- a/include/asm-s390/setup.h
+++ b/include/asm-s390/setup.h
@@ -42,6 +42,18 @@ struct mem_chunk {
extern struct mem_chunk memory_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
*/
@@ -74,6 +86,9 @@ 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)
@@ -141,13 +156,19 @@ struct ipl_parameter_block {
extern u32 ipl_flags;
extern u16 ipl_devno;
-void do_reipl(void);
+extern void do_reipl(void);
+extern void ipl_save_parameters(void);
enum {
IPL_DEVNO_VALID = 1,
IPL_PARMBLOCK_VALID = 2,
+ IPL_NSS_VALID = 4,
};
+#define NSS_NAME_SIZE 8
+
+extern char kernel_nss_name[];
+
#define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \
IPL_PARMBLOCK_ORIGIN)
#define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.len)
diff --git a/include/asm-s390/sfp-util.h b/include/asm-s390/sfp-util.h
new file mode 100644
index 00000000000..8cabcd23d97
--- /dev/null
+++ b/include/asm-s390/sfp-util.h
@@ -0,0 +1,66 @@
+#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; \
+})
+
+#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);
+
+#define UDIV_NEEDS_NORMALIZATION 0
+
+#define abort() return 0
+
+#define __BYTE_ORDER __BIG_ENDIAN
diff --git a/include/asm-s390/smp.h b/include/asm-s390/smp.h
index 7097c96ed02..b957e4cda46 100644
--- a/include/asm-s390/smp.h
+++ b/include/asm-s390/smp.h
@@ -31,6 +31,10 @@ typedef struct
__u16 cpu;
} sigp_info;
+extern void machine_restart_smp(char *);
+extern void machine_halt_smp(void);
+extern void machine_power_off_smp(void);
+
extern void smp_setup_cpu_possible_map(void);
extern int smp_call_function_on(void (*func) (void *info), void *info,
int nonatomic, int wait, int cpu);
@@ -106,7 +110,7 @@ smp_call_function_on(void (*func) (void *info), void *info,
static inline void smp_send_stop(void)
{
/* Disable all interrupts/machine checks */
- __load_psw_mask(PSW_KERNEL_BITS & ~PSW_MASK_MCHECK);
+ __load_psw_mask(psw_kernel_bits & ~PSW_MASK_MCHECK);
}
#define smp_cpu_not_running(cpu) 1
diff --git a/include/asm-s390/system.h b/include/asm-s390/system.h
index bd0b05ae87d..bbe137c3ed6 100644
--- a/include/asm-s390/system.h
+++ b/include/asm-s390/system.h
@@ -373,8 +373,8 @@ __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)
+#define local_mcck_enable() __set_psw_mask(psw_kernel_bits)
+#define local_mcck_disable() __set_psw_mask(psw_kernel_bits & ~PSW_MASK_MCHECK)
#ifdef CONFIG_SMP
diff --git a/include/asm-s390/tape390.h b/include/asm-s390/tape390.h
index f1d66ba0dee..884fba48f1f 100644
--- a/include/asm-s390/tape390.h
+++ b/include/asm-s390/tape390.h
@@ -1,11 +1,11 @@
/*************************************************************************
*
* tape390.h
- * enables user programs to display messages on the tape device
+ * enables user programs to display messages and control encryption
+ * on s390 tape devices
*
- * S390 and zSeries version
- * Copyright (C) 2001 IBM Corporation
- * Author(s): Despina Papadopoulou <despina_p@de.ibm.com>
+ * Copyright IBM Corp. 2001,2006
+ * Author(s): Michael Holzheu <holzheu@de.ibm.com>
*
*************************************************************************/
@@ -36,4 +36,68 @@ typedef struct display_struct {
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/include/asm-s390/timer.h b/include/asm-s390/timer.h
index 30e5cbe570f..adb34860a54 100644
--- a/include/asm-s390/timer.h
+++ b/include/asm-s390/timer.h
@@ -45,6 +45,9 @@ 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);
+
#endif /* __KERNEL__ */
#endif /* _ASM_S390_TIMER_H */
diff --git a/include/asm-s390/timex.h b/include/asm-s390/timex.h
index 4df4a41029a..98229db2431 100644
--- a/include/asm-s390/timex.h
+++ b/include/asm-s390/timex.h
@@ -11,6 +11,41 @@
#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;
@@ -27,9 +62,24 @@ static inline unsigned long long get_clock (void)
return clk;
}
+static inline void get_clock_extended(void *dest)
+{
+ typedef struct { unsigned long long clk[2]; } __clock_t;
+
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+ asm volatile("stcke %0" : "=Q" (*((__clock_t *)dest)) : : "cc");
+#else /* __GNUC__ */
+ asm volatile("stcke 0(%1)" : "=m" (*((__clock_t *)dest))
+ : "a" ((__clock_t *)dest) : "cc");
+#endif /* __GNUC__ */
+}
+
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);
+
#endif
diff --git a/include/asm-s390/tlbflush.h b/include/asm-s390/tlbflush.h
index fa4dc916a9b..66793f55c8b 100644
--- a/include/asm-s390/tlbflush.h
+++ b/include/asm-s390/tlbflush.h
@@ -3,6 +3,7 @@
#include <linux/mm.h>
#include <asm/processor.h>
+#include <asm/pgalloc.h>
/*
* TLB flushing:
@@ -102,6 +103,14 @@ static inline void __flush_tlb_mm(struct mm_struct * mm)
if (unlikely(cpus_empty(mm->cpu_vm_mask)))
return;
if (MACHINE_HAS_IDTE) {
+ pgd_t *shadow_pgd = get_shadow_pgd(mm->pgd);
+
+ if (shadow_pgd) {
+ asm volatile(
+ " .insn rrf,0xb98e0000,0,%0,%1,0"
+ : : "a" (2048),
+ "a" (__pa(shadow_pgd) & PAGE_MASK) : "cc" );
+ }
asm volatile(
" .insn rrf,0xb98e0000,0,%0,%1,0"
: : "a" (2048), "a" (__pa(mm->pgd)&PAGE_MASK) : "cc");
diff --git a/include/asm-s390/uaccess.h b/include/asm-s390/uaccess.h
index 73ac4e82217..0235970278f 100644
--- a/include/asm-s390/uaccess.h
+++ b/include/asm-s390/uaccess.h
@@ -90,6 +90,8 @@ struct uaccess_ops {
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)
{
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 13:13:19 +0000