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-rw-r--r--include/asm-parisc/uaccess.h122
1 files changed, 39 insertions, 83 deletions
diff --git a/include/asm-parisc/uaccess.h b/include/asm-parisc/uaccess.h
index d973e8b3466..4878b9501f2 100644
--- a/include/asm-parisc/uaccess.h
+++ b/include/asm-parisc/uaccess.h
@@ -4,7 +4,6 @@
/*
* User space memory access functions
*/
-#include <linux/sched.h>
#include <asm/page.h>
#include <asm/system.h>
#include <asm/cache.h>
@@ -43,16 +42,18 @@ static inline long access_ok(int type, const void __user * addr,
#define put_user __put_user
#define get_user __get_user
-#if BITS_PER_LONG == 32
+#if !defined(CONFIG_64BIT)
#define LDD_KERNEL(ptr) __get_kernel_bad();
#define LDD_USER(ptr) __get_user_bad();
#define STD_KERNEL(x, ptr) __put_kernel_asm64(x,ptr)
#define STD_USER(x, ptr) __put_user_asm64(x,ptr)
+#define ASM_WORD_INSN ".word\t"
#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)
+#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)
+#define ASM_WORD_INSN ".dword\t"
#endif
/*
@@ -66,6 +67,11 @@ struct exception_table_entry {
long fixup; /* fixup routine */
};
+#define ASM_EXCEPTIONTABLE_ENTRY( fault_addr, except_addr )\
+ ".section __ex_table,\"aw\"\n" \
+ ASM_WORD_INSN #fault_addr ", " #except_addr "\n\t" \
+ ".previous\n"
+
/*
* The page fault handler stores, in a per-cpu area, the following information
* if a fixup routine is available.
@@ -104,43 +110,19 @@ struct exception_data {
__gu_err; \
})
-#ifdef __LP64__
-#define __get_kernel_asm(ldx,ptr) \
- __asm__("\n1:\t" ldx "\t0(%2),%0\n" \
- "\t.section __ex_table,\"aw\"\n" \
- "\t.dword\t1b,fixup_get_user_skip_1\n" \
- "\t.previous" \
- : "=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.section __ex_table,\"aw\"\n" \
- "\t.dword\t1b,fixup_get_user_skip_1\n" \
- "\t.previous" \
- : "=r"(__gu_val), "=r"(__gu_err) \
- : "r"(ptr), "1"(__gu_err) \
- : "r1");
-#else
#define __get_kernel_asm(ldx,ptr) \
- __asm__("\n1:\t" ldx "\t0(%2),%0\n" \
- "\t.section __ex_table,\"aw\"\n" \
- "\t.word\t1b,fixup_get_user_skip_1\n" \
- "\t.previous" \
+ __asm__("\n1:\t" ldx "\t0(%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.section __ex_table,\"aw\"\n" \
- "\t.word\t1b,fixup_get_user_skip_1\n" \
- "\t.previous" \
+ __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) \
: "r"(ptr), "1"(__gu_err) \
: "r1");
-#endif /* !__LP64__ */
#define __put_user(x,ptr) \
({ \
@@ -179,80 +161,54 @@ struct exception_data {
* r8/r9 are already listed as err/val.
*/
-#ifdef __LP64__
#define __put_kernel_asm(stx,x,ptr) \
__asm__ __volatile__ ( \
- "\n1:\t" stx "\t%2,0(%1)\n" \
- "\t.section __ex_table,\"aw\"\n" \
- "\t.dword\t1b,fixup_put_user_skip_1\n" \
- "\t.previous" \
+ "\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.section __ex_table,\"aw\"\n" \
- "\t.dword\t1b,fixup_put_user_skip_1\n" \
- "\t.previous" \
- : "=r"(__pu_err) \
- : "r"(ptr), "r"(x), "0"(__pu_err) \
- : "r1")
-#else
-#define __put_kernel_asm(stx,x,ptr) \
- __asm__ __volatile__ ( \
- "\n1:\t" stx "\t%2,0(%1)\n" \
- "\t.section __ex_table,\"aw\"\n" \
- "\t.word\t1b,fixup_put_user_skip_1\n" \
- "\t.previous" \
+ "\n1:\t" stx "\t%2,0(%%sr3,%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.section __ex_table,\"aw\"\n" \
- "\t.word\t1b,fixup_put_user_skip_1\n" \
- "\t.previous" \
- : "=r"(__pu_err) \
- : "r"(ptr), "r"(x), "0"(__pu_err) \
- : "r1")
-#define __put_kernel_asm64(__val,ptr) do { \
- u64 __val64 = (u64)(__val); \
- u32 hi = (__val64) >> 32; \
- u32 lo = (__val64) & 0xffffffff; \
+#if !defined(CONFIG_64BIT)
+
+#define __put_kernel_asm64(__val,ptr) do { \
+ u64 __val64 = (u64)(__val); \
+ u32 hi = (__val64) >> 32; \
+ u32 lo = (__val64) & 0xffffffff; \
__asm__ __volatile__ ( \
- "\n1:\tstw %2,0(%1)\n" \
- "\n2:\tstw %3,4(%1)\n" \
- "\t.section __ex_table,\"aw\"\n" \
- "\t.word\t1b,fixup_put_user_skip_2\n" \
- "\t.word\t2b,fixup_put_user_skip_1\n" \
- "\t.previous" \
+ "\n1:\tstw %2,0(%1)" \
+ "\n2:\tstw %3,4(%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"(hi), "r"(lo), "0"(__pu_err) \
: "r1"); \
} while (0)
-#define __put_user_asm64(__val,ptr) do { \
- u64 __val64 = (u64)__val; \
- u32 hi = (__val64) >> 32; \
- u32 lo = (__val64) & 0xffffffff; \
+#define __put_user_asm64(__val,ptr) do { \
+ u64 __val64 = (u64)(__val); \
+ u32 hi = (__val64) >> 32; \
+ u32 lo = (__val64) & 0xffffffff; \
__asm__ __volatile__ ( \
- "\n1:\tstw %2,0(%%sr3,%1)\n" \
- "\n2:\tstw %3,4(%%sr3,%1)\n" \
- "\t.section __ex_table,\"aw\"\n" \
- "\t.word\t1b,fixup_get_user_skip_2\n" \
- "\t.word\t2b,fixup_get_user_skip_1\n" \
- "\t.previous" \
+ "\n1:\tstw %2,0(%%sr3,%1)" \
+ "\n2:\tstw %3,4(%%sr3,%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"(hi), "r"(lo), "0"(__pu_err) \
: "r1"); \
} while (0)
-#endif /* !__LP64__ */
+#endif /* !defined(CONFIG_64BIT) */
/*
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