Linux-libre 4.7.1-gnupck-4.7.1-gnu

13 files changed, 155 insertions, 129 deletions

diff --git a/arch/parisc/include/asm/cmpxchg.h b/arch/parisc/include/asm/cmpxchg.h
index 0a90b965c..7ada30900 100644
--- a/arch/parisc/include/asm/cmpxchg.h
+++ b/arch/parisc/include/asm/cmpxchg.h
@@ -52,8 +52,7 @@ extern void __cmpxchg_called_with_bad_pointer(void);
 /* __cmpxchg_u32/u64 defined in arch/parisc/lib/bitops.c */
 extern unsigned long __cmpxchg_u32(volatile unsigned int *m, unsigned int old,
 				   unsigned int new_);
-extern unsigned long __cmpxchg_u64(volatile unsigned long *ptr,
-				   unsigned long old, unsigned long new_);
+extern u64 __cmpxchg_u64(volatile u64 *ptr, u64 old, u64 new_);
 
 /* don't worry...optimizer will get rid of most of this */
 static inline unsigned long
@@ -61,7 +60,7 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new_, int size)
 {
 	switch (size) {
 #ifdef CONFIG_64BIT
-	case 8: return __cmpxchg_u64((unsigned long *)ptr, old, new_);
+	case 8: return __cmpxchg_u64((u64 *)ptr, old, new_);
 #endif
 	case 4: return __cmpxchg_u32((unsigned int *)ptr,
 				     (unsigned int)old, (unsigned int)new_);
@@ -86,7 +85,7 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr,
 {
 	switch (size) {
 #ifdef CONFIG_64BIT
-	case 8:	return __cmpxchg_u64((unsigned long *)ptr, old, new_);
+	case 8:	return __cmpxchg_u64((u64 *)ptr, old, new_);
 #endif
 	case 4:	return __cmpxchg_u32(ptr, old, new_);
 	default:
@@ -111,4 +110,6 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr,
 #define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
 #endif
 
+#define cmpxchg64(ptr, o, n) __cmpxchg_u64(ptr, o, n)
+
 #endif /* _ASM_PARISC_CMPXCHG_H_ */
diff --git a/arch/parisc/include/asm/eisa_eeprom.h b/arch/parisc/include/asm/eisa_eeprom.h
index 8ce8b85ca..5637ac962 100644
--- a/arch/parisc/include/asm/eisa_eeprom.h
+++ b/arch/parisc/include/asm/eisa_eeprom.h
@@ -99,7 +99,7 @@ struct eeprom_eisa_slot_info
 #define HPEE_MEMORY_DECODE_24BITS 0x04
 #define HPEE_MEMORY_DECODE_32BITS 0x08
 /* byte 2 and 3 are a 16bit LE value
- * containging the memory size in kilobytes */
+ * containing the memory size in kilobytes */
 /* byte 4,5,6 are a 24bit LE value
  * containing the memory base address */
 
@@ -135,7 +135,7 @@ struct eeprom_eisa_slot_info
 #define HPEE_PORT_SHARED    0x40
 #define HPEE_PORT_MORE      0x80
 /* byte 1 and 2 is a 16bit LE value
- * conating the start port number */
+ * containing the start port number */
 
 #define HPEE_PORT_INIT_MAX_LEN     60 /* in bytes here */
 /* port init entry byte 0 */
diff --git a/arch/parisc/include/asm/ftrace.h b/arch/parisc/include/asm/ftrace.h
index 24cd81d58..d635c6b02 100644
--- a/arch/parisc/include/asm/ftrace.h
+++ b/arch/parisc/include/asm/ftrace.h
@@ -6,6 +6,8 @@ extern void mcount(void);
 
 #define MCOUNT_INSN_SIZE 4
 
+extern unsigned long sys_call_table[];
+
 extern unsigned long return_address(unsigned int);
 
 #define ftrace_return_address(n) return_address(n)
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 49df14805..ac8bd586a 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -35,70 +35,57 @@ static inline int
 futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 {
 	unsigned long int flags;
-	u32 val;
 	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 = 0, ret;
+	int oldval, ret;
+	u32 tmp;
+
 	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
 		oparg = 1 << oparg;
 
 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(*uaddr)))
 		return -EFAULT;
 
+	_futex_spin_lock_irqsave(uaddr, &flags);
 	pagefault_disable();
 
-	_futex_spin_lock_irqsave(uaddr, &flags);
+	ret = -EFAULT;
+	if (unlikely(get_user(oldval, uaddr) != 0))
+		goto out_pagefault_enable;
+
+	ret = 0;
+	tmp = oldval;
 
 	switch (op) {
 	case FUTEX_OP_SET:
-		/* *(int *)UADDR2 = OPARG; */
-		ret = get_user(oldval, uaddr);
-		if (!ret)
-			ret = put_user(oparg, uaddr);
+		tmp = oparg;
 		break;
 	case FUTEX_OP_ADD:
-		/* *(int *)UADDR2 += OPARG; */
-		ret = get_user(oldval, uaddr);
-		if (!ret) {
-			val = oldval + oparg;
-			ret = put_user(val, uaddr);
-		}
+		tmp += oparg;
 		break;
 	case FUTEX_OP_OR:
-		/* *(int *)UADDR2 |= OPARG; */
-		ret = get_user(oldval, uaddr);
-		if (!ret) {
-			val = oldval | oparg;
-			ret = put_user(val, uaddr);
-		}
+		tmp |= oparg;
 		break;
 	case FUTEX_OP_ANDN:
-		/* *(int *)UADDR2 &= ~OPARG; */
-		ret = get_user(oldval, uaddr);
-		if (!ret) {
-			val = oldval & ~oparg;
-			ret = put_user(val, uaddr);
-		}
+		tmp &= ~oparg;
 		break;
 	case FUTEX_OP_XOR:
-		/* *(int *)UADDR2 ^= OPARG; */
-		ret = get_user(oldval, uaddr);
-		if (!ret) {
-			val = oldval ^ oparg;
-			ret = put_user(val, uaddr);
-		}
+		tmp ^= oparg;
 		break;
 	default:
 		ret = -ENOSYS;
 	}
 
-	_futex_spin_unlock_irqrestore(uaddr, &flags);
+	if (ret == 0 && unlikely(put_user(tmp, uaddr) != 0))
+		ret = -EFAULT;
 
+out_pagefault_enable:
 	pagefault_enable();
+	_futex_spin_unlock_irqrestore(uaddr, &flags);
 
-	if (!ret) {
+	if (ret == 0) {
 		switch (cmp) {
 		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
 		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
@@ -112,12 +99,10 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 	return ret;
 }
 
-/* Non-atomic version */
 static inline int
 futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 			      u32 oldval, u32 newval)
 {
-	int ret;
 	u32 val;
 	unsigned long flags;
 
@@ -137,17 +122,20 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 	 */
 
 	_futex_spin_lock_irqsave(uaddr, &flags);
+	if (unlikely(get_user(val, uaddr) != 0)) {
+		_futex_spin_unlock_irqrestore(uaddr, &flags);
+		return -EFAULT;
+	}
 
-	ret = get_user(val, uaddr);
-
-	if (!ret && val == oldval)
-		ret = put_user(newval, uaddr);
+	if (val == oldval && unlikely(put_user(newval, uaddr) != 0)) {
+		_futex_spin_unlock_irqrestore(uaddr, &flags);
+		return -EFAULT;
+	}
 
 	*uval = val;
-
 	_futex_spin_unlock_irqrestore(uaddr, &flags);
 
-	return ret;
+	return 0;
 }
 
 #endif /*__KERNEL__*/
diff --git a/arch/parisc/include/asm/ldcw.h b/arch/parisc/include/asm/ldcw.h
index 8121aa6db..8be707e1b 100644
--- a/arch/parisc/include/asm/ldcw.h
+++ b/arch/parisc/include/asm/ldcw.h
@@ -40,7 +40,7 @@
    memory to indicate to the compiler that the assembly code reads
    or writes to items other than those listed in the input and output
    operands.  This may pessimize the code somewhat but __ldcw is
-   usually used within code blocks surrounded by memory barriors.  */
+   usually used within code blocks surrounded by memory barriers.  */
 #define __ldcw(a) ({						\
 	unsigned __ret;						\
 	__asm__ __volatile__(__LDCW " 0(%1),%0"			\
diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index f2fd327dc..f08dda3f0 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -63,8 +63,7 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
 
 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
 {
-	pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT,
-					       PMD_ORDER);
+	pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL, PMD_ORDER);
 	if (pmd)
 		memset(pmd, 0, PAGE_SIZE<<PMD_ORDER);
 	return pmd;
@@ -124,7 +123,7 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
 static inline pgtable_t
 pte_alloc_one(struct mm_struct *mm, unsigned long address)
 {
-	struct page *page = alloc_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
+	struct page *page = alloc_page(GFP_KERNEL|__GFP_ZERO);
 	if (!page)
 		return NULL;
 	if (!pgtable_page_ctor(page)) {
@@ -137,7 +136,7 @@ pte_alloc_one(struct mm_struct *mm, unsigned long address)
 static inline pte_t *
 pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
 {
-	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
+	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
 	return pte;
 }
 
diff --git a/arch/parisc/include/asm/syscall.h b/arch/parisc/include/asm/syscall.h
index 637ce8d6f..5e0b4e6bd 100644
--- a/arch/parisc/include/asm/syscall.h
+++ b/arch/parisc/include/asm/syscall.h
@@ -8,6 +8,8 @@
 #include <linux/err.h>
 #include <asm/ptrace.h>
 
+#define NR_syscalls (__NR_Linux_syscalls)
+
 static inline long syscall_get_nr(struct task_struct *tsk,
 				  struct pt_regs *regs)
 {
@@ -33,12 +35,19 @@ static inline void syscall_get_arguments(struct task_struct *tsk,
 		args[1] = regs->gr[25];
 	case 1:
 		args[0] = regs->gr[26];
+	case 0:
 		break;
 	default:
 		BUG();
 	}
 }
 
+static inline long syscall_get_return_value(struct task_struct *task,
+						struct pt_regs *regs)
+{
+	return regs->gr[28];
+}
+
 static inline void syscall_set_return_value(struct task_struct *task,
 					    struct pt_regs *regs,
 					    int error, long val)
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index e96e693fd..7581330ea 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -55,6 +55,7 @@ struct thread_info {
 #define TIF_SINGLESTEP		9	/* single stepping? */
 #define TIF_BLOCKSTEP		10	/* branch stepping? */
 #define TIF_SECCOMP		11	/* secure computing */
+#define TIF_SYSCALL_TRACEPOINT	12	/* syscall tracepoint instrumentation */
 
 #define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING		(1 << TIF_SIGPENDING)
@@ -66,12 +67,13 @@ struct thread_info {
 #define _TIF_SINGLESTEP		(1 << TIF_SINGLESTEP)
 #define _TIF_BLOCKSTEP		(1 << TIF_BLOCKSTEP)
 #define _TIF_SECCOMP		(1 << TIF_SECCOMP)
+#define _TIF_SYSCALL_TRACEPOINT	(1 << TIF_SYSCALL_TRACEPOINT)
 
 #define _TIF_USER_WORK_MASK     (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | \
                                  _TIF_NEED_RESCHED)
 #define _TIF_SYSCALL_TRACE_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP |	\
 				 _TIF_BLOCKSTEP | _TIF_SYSCALL_AUDIT | \
-				 _TIF_SECCOMP)
+				 _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT)
 
 #ifdef CONFIG_64BIT
 # ifdef CONFIG_COMPAT
diff --git a/arch/parisc/include/asm/traps.h b/arch/parisc/include/asm/traps.h
index 4736020ba..5e953ab45 100644
--- a/arch/parisc/include/asm/traps.h
+++ b/arch/parisc/include/asm/traps.h
@@ -8,6 +8,8 @@ struct pt_regs;
 void parisc_terminate(char *msg, struct pt_regs *regs,
 		int code, unsigned long offset) __noreturn __cold;
 
+void die_if_kernel(char *str, struct pt_regs *regs, long err);
+
 /* mm/fault.c */
 void do_page_fault(struct pt_regs *regs, unsigned long code,
 		unsigned long address);
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 7955e43f3..0f59fd9ca 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -40,14 +40,10 @@ static inline long access_ok(int type, const void __user * addr,
 #define get_user __get_user
 
 #if !defined(CONFIG_64BIT)
-#define LDD_KERNEL(ptr)		BUILD_BUG()
-#define LDD_USER(ptr)		BUILD_BUG()
-#define STD_KERNEL(x, ptr)	__put_kernel_asm64(x, ptr)
+#define LDD_USER(ptr)		__get_user_asm64(ptr)
 #define STD_USER(x, ptr)	__put_user_asm64(x, ptr)
 #else
-#define LDD_KERNEL(ptr)		__get_kernel_asm("ldd", ptr)
 #define LDD_USER(ptr)		__get_user_asm("ldd", ptr)
-#define STD_KERNEL(x, ptr)	__put_kernel_asm("std", x, ptr)
 #define STD_USER(x, ptr)	__put_user_asm("std", x, ptr)
 #endif
 
@@ -80,70 +76,70 @@ struct exception_data {
 	unsigned long fault_addr;
 };
 
+/*
+ * load_sr2() preloads the space register %%sr2 - based on the value of
+ * get_fs() - with either a value of 0 to access kernel space (KERNEL_DS which
+ * is 0), or with the current value of %%sr3 to access user space (USER_DS)
+ * memory. The following __get_user_asm() and __put_user_asm() functions have
+ * %%sr2 hard-coded to access the requested memory.
+ */
+#define load_sr2() \
+	__asm__(" or,=  %0,%%r0,%%r0\n\t"	\
+		" mfsp %%sr3,%0\n\t"		\
+		" mtsp %0,%%sr2\n\t"		\
+		: : "r"(get_fs()) : )
+
 #define __get_user(x, ptr)                               \
 ({                                                       \
 	register long __gu_err __asm__ ("r8") = 0;       \
 	register long __gu_val __asm__ ("r9") = 0;       \
 							 \
-	if (segment_eq(get_fs(), KERNEL_DS)) {           \
-	    switch (sizeof(*(ptr))) {                    \
-	    case 1: __get_kernel_asm("ldb", ptr); break; \
-	    case 2: __get_kernel_asm("ldh", ptr); break; \
-	    case 4: __get_kernel_asm("ldw", ptr); break; \
-	    case 8: LDD_KERNEL(ptr); break;		 \
-	    default: BUILD_BUG(); break;		 \
-	    }                                            \
-	}                                                \
-	else {                                           \
-	    switch (sizeof(*(ptr))) {                    \
+	load_sr2();					 \
+	switch (sizeof(*(ptr))) {			 \
 	    case 1: __get_user_asm("ldb", ptr); break;   \
 	    case 2: __get_user_asm("ldh", ptr); break;   \
 	    case 4: __get_user_asm("ldw", ptr); break;   \
 	    case 8: LDD_USER(ptr);  break;		 \
 	    default: BUILD_BUG(); break;		 \
-	    }                                            \
 	}                                                \
 							 \
 	(x) = (__force __typeof__(*(ptr))) __gu_val;	 \
 	__gu_err;                                        \
 })
 
-#define __get_kernel_asm(ldx, ptr)                      \
-	__asm__("\n1:\t" ldx "\t0(%2),%0\n\t"		\
+#define __get_user_asm(ldx, ptr)                        \
+	__asm__("\n1:\t" ldx "\t0(%%sr2,%2),%0\n\t"	\
 		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_get_user_skip_1)\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
 		: "r"(ptr), "1"(__gu_err)		\
 		: "r1");
 
-#define __get_user_asm(ldx, ptr)                        \
-	__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n\t"	\
-		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_get_user_skip_1)\
-		: "=r"(__gu_val), "=r"(__gu_err)        \
+#if !defined(CONFIG_64BIT)
+
+#define __get_user_asm64(ptr) 				\
+	__asm__("\n1:\tldw 0(%%sr2,%2),%0"		\
+		"\n2:\tldw 4(%%sr2,%2),%R0\n\t"		\
+		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_get_user_skip_2)\
+		ASM_EXCEPTIONTABLE_ENTRY(2b, fixup_get_user_skip_1)\
+		: "=r"(__gu_val), "=r"(__gu_err)	\
 		: "r"(ptr), "1"(__gu_err)		\
 		: "r1");
 
+#endif /* !defined(CONFIG_64BIT) */
+
+
 #define __put_user(x, ptr)                                      \
 ({								\
 	register long __pu_err __asm__ ("r8") = 0;      	\
         __typeof__(*(ptr)) __x = (__typeof__(*(ptr)))(x);	\
 								\
-	if (segment_eq(get_fs(), KERNEL_DS)) {                  \
-	    switch (sizeof(*(ptr))) {                           \
-	    case 1: __put_kernel_asm("stb", __x, ptr); break;   \
-	    case 2: __put_kernel_asm("sth", __x, ptr); break;   \
-	    case 4: __put_kernel_asm("stw", __x, ptr); break;   \
-	    case 8: STD_KERNEL(__x, ptr); break;		\
-	    default: BUILD_BUG(); break;			\
-	    }                                                   \
-	}                                                       \
-	else {                                                  \
-	    switch (sizeof(*(ptr))) {                           \
+	load_sr2();						\
+	switch (sizeof(*(ptr))) {				\
 	    case 1: __put_user_asm("stb", __x, ptr); break;     \
 	    case 2: __put_user_asm("sth", __x, ptr); break;     \
 	    case 4: __put_user_asm("stw", __x, ptr); break;     \
 	    case 8: STD_USER(__x, ptr); break;			\
 	    default: BUILD_BUG(); break;			\
-	    }                                                   \
 	}                                                       \
 								\
 	__pu_err;						\
@@ -159,17 +155,9 @@ struct exception_data {
  * r8/r9 are already listed as err/val.
  */
 
-#define __put_kernel_asm(stx, x, ptr)                       \
-	__asm__ __volatile__ (                              \
-		"\n1:\t" stx "\t%2,0(%1)\n\t"		    \
-		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_put_user_skip_1)\
-		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
-	    	: "r1")
-
 #define __put_user_asm(stx, x, ptr)                         \
 	__asm__ __volatile__ (                              \
-		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n\t"	    \
+		"\n1:\t" stx "\t%2,0(%%sr2,%1)\n\t"	    \
 		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_put_user_skip_1)\
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
@@ -178,21 +166,10 @@ struct exception_data {
 
 #if !defined(CONFIG_64BIT)
 
-#define __put_kernel_asm64(__val, ptr) do {		    \
-	__asm__ __volatile__ (				    \
-		"\n1:\tstw %2,0(%1)"			    \
-		"\n2:\tstw %R2,4(%1)\n\t"		    \
-		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_put_user_skip_2)\
-		ASM_EXCEPTIONTABLE_ENTRY(2b, fixup_put_user_skip_1)\
-		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(__val), "0"(__pu_err) \
-		: "r1");				    \
-} while (0)
-
 #define __put_user_asm64(__val, ptr) do {	    	    \
 	__asm__ __volatile__ (				    \
-		"\n1:\tstw %2,0(%%sr3,%1)"		    \
-		"\n2:\tstw %R2,4(%%sr3,%1)\n\t"		    \
+		"\n1:\tstw %2,0(%%sr2,%1)"		    \
+		"\n2:\tstw %R2,4(%%sr2,%1)\n\t"		    \
 		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_put_user_skip_2)\
 		ASM_EXCEPTIONTABLE_ENTRY(2b, fixup_put_user_skip_1)\
 		: "=r"(__pu_err)                            \
diff --git a/arch/parisc/include/uapi/asm/pdc.h b/arch/parisc/include/uapi/asm/pdc.h
index 702498f77..0609ff117 100644
--- a/arch/parisc/include/uapi/asm/pdc.h
+++ b/arch/parisc/include/uapi/asm/pdc.h
@@ -59,7 +59,7 @@
 #define PDC_MODEL_GET_BOOT__OP	8	/* returns boot test options	*/
 #define PDC_MODEL_SET_BOOT__OP	9	/* set boot test options	*/
 
-#define PA89_INSTRUCTION_SET	0x4	/* capatibilies returned	*/
+#define PA89_INSTRUCTION_SET	0x4	/* capabilities returned	*/
 #define PA90_INSTRUCTION_SET	0x8
 
 #define PDC_CACHE	5		/* return/set cache (& TLB) info*/
diff --git a/arch/parisc/include/uapi/asm/ptrace.h b/arch/parisc/include/uapi/asm/ptrace.h
index c4fa6c8b9..02ce2eb99 100644
--- a/arch/parisc/include/uapi/asm/ptrace.h
+++ b/arch/parisc/include/uapi/asm/ptrace.h
@@ -13,6 +13,11 @@
  * N.B. gdb/strace care about the size and offsets within this
  * structure. If you change things, you may break object compatibility
  * for those applications.
+ *
+ * Please do NOT use this structure for future programs, but use
+ * user_regs_struct (see below) instead.
+ *
+ * It can be accessed through PTRACE_PEEKUSR/PTRACE_POKEUSR only.
  */
 
 struct pt_regs {
@@ -33,6 +38,45 @@ struct pt_regs {
 	unsigned long ipsw;	/* CR22 */
 };
 
+/**
+ * struct user_regs_struct - User general purpose registers
+ *
+ * This is the user-visible general purpose register state structure
+ * which is used to define the elf_gregset_t.
+ *
+ * It can be accessed through PTRACE_GETREGSET with NT_PRSTATUS
+ * and through PTRACE_GETREGS.
+ */
+struct user_regs_struct {
+	unsigned long gr[32];	/* PSW is in gr[0] */
+	unsigned long sr[8];
+	unsigned long iaoq[2];
+	unsigned long iasq[2];
+	unsigned long sar;	/* CR11 */
+	unsigned long iir;	/* CR19 */
+	unsigned long isr;	/* CR20 */
+	unsigned long ior;	/* CR21 */
+	unsigned long ipsw;	/* CR22 */
+	unsigned long cr0;
+	unsigned long cr24, cr25, cr26, cr27, cr28, cr29, cr30, cr31;
+	unsigned long cr8, cr9, cr12, cr13, cr10, cr15;
+	unsigned long _pad[80-64];	/* pad to ELF_NGREG (80) */
+};
+
+/**
+ * struct user_fp_struct - User floating point registers
+ *
+ * This is the user-visible floating point register state structure.
+ * It uses the same layout and size as elf_fpregset_t.
+ *
+ * It can be accessed through PTRACE_GETREGSET with NT_PRFPREG
+ * and through PTRACE_GETFPREGS.
+ */
+struct user_fp_struct {
+	__u64 fr[32];
+};
+
+
 /*
  * The numbers chosen here are somewhat arbitrary but absolutely MUST
  * not overlap with any of the number assigned in <linux/ptrace.h>.
@@ -43,5 +87,9 @@ struct pt_regs {
  */
 #define PTRACE_SINGLEBLOCK	12	/* resume execution until next branch */
 
+#define PTRACE_GETREGS		18
+#define PTRACE_SETREGS		19
+#define PTRACE_GETFPREGS	14
+#define PTRACE_SETFPREGS	15
 
 #endif /* _UAPI_PARISC_PTRACE_H */
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index cc0ce92c9..a9b9407f3 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -102,7 +102,7 @@
 #define __NR_uselib              (__NR_Linux + 86)
 #define __NR_swapon              (__NR_Linux + 87)
 #define __NR_reboot              (__NR_Linux + 88)
-#define __NR_mmap2             (__NR_Linux + 89)
+#define __NR_mmap2               (__NR_Linux + 89)
 #define __NR_mmap                (__NR_Linux + 90)
 #define __NR_munmap              (__NR_Linux + 91)
 #define __NR_truncate            (__NR_Linux + 92)
@@ -114,7 +114,7 @@
 #define __NR_recv                (__NR_Linux + 98)
 #define __NR_statfs              (__NR_Linux + 99)
 #define __NR_fstatfs            (__NR_Linux + 100)
-#define __NR_stat64           (__NR_Linux + 101)
+#define __NR_stat64             (__NR_Linux + 101)
 /* #define __NR_socketcall         (__NR_Linux + 102) */
 #define __NR_syslog             (__NR_Linux + 103)
 #define __NR_setitimer          (__NR_Linux + 104)
@@ -140,17 +140,17 @@
 #define __NR_adjtimex           (__NR_Linux + 124)
 #define __NR_mprotect           (__NR_Linux + 125)
 #define __NR_sigprocmask        (__NR_Linux + 126)
-#define __NR_create_module      (__NR_Linux + 127)
+#define __NR_create_module      (__NR_Linux + 127) /* not used */
 #define __NR_init_module        (__NR_Linux + 128)
 #define __NR_delete_module      (__NR_Linux + 129)
-#define __NR_get_kernel_syms    (__NR_Linux + 130)
+#define __NR_get_kernel_syms    (__NR_Linux + 130) /* not used */
 #define __NR_quotactl           (__NR_Linux + 131)
 #define __NR_getpgid            (__NR_Linux + 132)
 #define __NR_fchdir             (__NR_Linux + 133)
 #define __NR_bdflush            (__NR_Linux + 134)
 #define __NR_sysfs              (__NR_Linux + 135)
 #define __NR_personality        (__NR_Linux + 136)
-#define __NR_afs_syscall        (__NR_Linux + 137) /* Syscall for Andrew File System */
+#define __NR_afs_syscall        (__NR_Linux + 137) /* not used */
 #define __NR_setfsuid           (__NR_Linux + 138)
 #define __NR_setfsgid           (__NR_Linux + 139)
 #define __NR__llseek            (__NR_Linux + 140)
@@ -180,9 +180,9 @@
 #define __NR_setresuid          (__NR_Linux + 164)
 #define __NR_getresuid          (__NR_Linux + 165)
 #define __NR_sigaltstack        (__NR_Linux + 166)
-#define __NR_query_module       (__NR_Linux + 167)
+#define __NR_query_module       (__NR_Linux + 167) /* not used */
 #define __NR_poll               (__NR_Linux + 168)
-#define __NR_nfsservctl         (__NR_Linux + 169)
+#define __NR_nfsservctl         (__NR_Linux + 169) /* not used */
 #define __NR_setresgid          (__NR_Linux + 170)
 #define __NR_getresgid          (__NR_Linux + 171)
 #define __NR_prctl              (__NR_Linux + 172)
@@ -209,18 +209,16 @@
 #define __NR_shmdt              (__NR_Linux + 193)
 #define __NR_shmget             (__NR_Linux + 194)
 #define __NR_shmctl             (__NR_Linux + 195)
-
-#define __NR_getpmsg		(__NR_Linux + 196) /* Somebody *wants* streams? */
-#define __NR_putpmsg		(__NR_Linux + 197)
-
+#define __NR_getpmsg            (__NR_Linux + 196) /* not used */
+#define __NR_putpmsg            (__NR_Linux + 197) /* not used */
 #define __NR_lstat64            (__NR_Linux + 198)
 #define __NR_truncate64         (__NR_Linux + 199)
 #define __NR_ftruncate64        (__NR_Linux + 200)
 #define __NR_getdents64         (__NR_Linux + 201)
 #define __NR_fcntl64            (__NR_Linux + 202)
-#define __NR_attrctl            (__NR_Linux + 203)
-#define __NR_acl_get            (__NR_Linux + 204)
-#define __NR_acl_set            (__NR_Linux + 205)
+#define __NR_attrctl            (__NR_Linux + 203) /* not used */
+#define __NR_acl_get            (__NR_Linux + 204) /* not used */
+#define __NR_acl_set            (__NR_Linux + 205) /* not used */
 #define __NR_gettid             (__NR_Linux + 206)
 #define __NR_readahead          (__NR_Linux + 207)
 #define __NR_tkill              (__NR_Linux + 208)
@@ -228,8 +226,8 @@
 #define __NR_futex              (__NR_Linux + 210)
 #define __NR_sched_setaffinity  (__NR_Linux + 211)
 #define __NR_sched_getaffinity  (__NR_Linux + 212)
-#define __NR_set_thread_area    (__NR_Linux + 213)
-#define __NR_get_thread_area    (__NR_Linux + 214)
+#define __NR_set_thread_area    (__NR_Linux + 213) /* not used */
+#define __NR_get_thread_area    (__NR_Linux + 214) /* not used */
 #define __NR_io_setup           (__NR_Linux + 215)
 #define __NR_io_destroy         (__NR_Linux + 216)
 #define __NR_io_getevents       (__NR_Linux + 217)
@@ -278,7 +276,7 @@
 #define __NR_mbind		(__NR_Linux + 260)
 #define __NR_get_mempolicy	(__NR_Linux + 261)
 #define __NR_set_mempolicy	(__NR_Linux + 262)
-#define __NR_vserver		(__NR_Linux + 263)
+#define __NR_vserver		(__NR_Linux + 263) /* not used */
 #define __NR_add_key		(__NR_Linux + 264)
 #define __NR_request_key	(__NR_Linux + 265)
 #define __NR_keyctl		(__NR_Linux + 266)
@@ -318,7 +316,7 @@
 #define __NR_kexec_load		(__NR_Linux + 300)
 #define __NR_utimensat		(__NR_Linux + 301)
 #define __NR_signalfd		(__NR_Linux + 302)
-#define __NR_timerfd		(__NR_Linux + 303)
+#define __NR_timerfd		(__NR_Linux + 303) /* not used */
 #define __NR_eventfd		(__NR_Linux + 304)
 #define __NR_fallocate		(__NR_Linux + 305)
 #define __NR_timerfd_create	(__NR_Linux + 306)