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Diffstat (limited to 'include/asm-parisc/uaccess.h')
-rw-r--r--include/asm-parisc/uaccess.h244
1 files changed, 0 insertions, 244 deletions
diff --git a/include/asm-parisc/uaccess.h b/include/asm-parisc/uaccess.h
deleted file mode 100644
index 4878b9501f2..00000000000
--- a/include/asm-parisc/uaccess.h
+++ /dev/null
@@ -1,244 +0,0 @@
-#ifndef __PARISC_UACCESS_H
-#define __PARISC_UACCESS_H
-
-/*
- * User space memory access functions
- */
-#include <asm/page.h>
-#include <asm/system.h>
-#include <asm/cache.h>
-#include <asm-generic/uaccess.h>
-
-#define VERIFY_READ 0
-#define VERIFY_WRITE 1
-
-#define KERNEL_DS ((mm_segment_t){0})
-#define USER_DS ((mm_segment_t){1})
-
-#define segment_eq(a,b) ((a).seg == (b).seg)
-
-#define get_ds() (KERNEL_DS)
-#define get_fs() (current_thread_info()->addr_limit)
-#define set_fs(x) (current_thread_info()->addr_limit = (x))
-
-/*
- * Note that since kernel addresses are in a separate address space on
- * parisc, we don't need to do anything for access_ok().
- * We just let the page fault handler do the right thing. This also means
- * that put_user is the same as __put_user, etc.
- */
-
-extern int __get_kernel_bad(void);
-extern int __get_user_bad(void);
-extern int __put_kernel_bad(void);
-extern int __put_user_bad(void);
-
-static inline long access_ok(int type, const void __user * addr,
- unsigned long size)
-{
- return 1;
-}
-
-#define put_user __put_user
-#define get_user __get_user
-
-#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 ASM_WORD_INSN ".dword\t"
-#endif
-
-/*
- * The exception table contains two values: the first is an address
- * for an instruction that is allowed to fault, and the second is
- * the address to the fixup routine.
- */
-
-struct exception_table_entry {
- unsigned long insn; /* address of insn that is allowed to fault. */
- 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.
- */
-struct exception_data {
- unsigned long fault_ip;
- unsigned long fault_space;
- unsigned long fault_addr;
-};
-
-#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: __get_kernel_bad(); break; \
- } \
- } \
- else { \
- 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: __get_user_bad(); break; \
- } \
- } \
- \
- (x) = (__typeof__(*(ptr))) __gu_val; \
- __gu_err; \
-})
-
-#define __get_kernel_asm(ldx,ptr) \
- __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" \
- ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_get_user_skip_1)\
- : "=r"(__gu_val), "=r"(__gu_err) \
- : "r"(ptr), "1"(__gu_err) \
- : "r1");
-
-#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: __put_kernel_bad(); break; \
- } \
- } \
- else { \
- 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: __put_user_bad(); break; \
- } \
- } \
- \
- __pu_err; \
-})
-
-/*
- * The "__put_user/kernel_asm()" macros tell gcc they read from memory
- * instead of writing. This is because they do not write to any memory
- * gcc knows about, so there are no aliasing issues. These macros must
- * also be aware that "fixup_put_user_skip_[12]" are executed in the
- * context of the fault, and any registers used there must be listed
- * as clobbers. In this case only "r1" is used by the current routines.
- * 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" \
- ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_1)\
- : "=r"(__pu_err) \
- : "r"(ptr), "r"(x), "0"(__pu_err) \
- : "r1")
-
-
-#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)" \
- "\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; \
- __asm__ __volatile__ ( \
- "\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 /* !defined(CONFIG_64BIT) */
-
-
-/*
- * Complex access routines -- external declarations
- */
-
-extern unsigned long lcopy_to_user(void __user *, const void *, unsigned long);
-extern unsigned long lcopy_from_user(void *, const void __user *, unsigned long);
-extern unsigned long lcopy_in_user(void __user *, const void __user *, unsigned long);
-extern long lstrncpy_from_user(char *, const char __user *, long);
-extern unsigned lclear_user(void __user *,unsigned long);
-extern long lstrnlen_user(const char __user *,long);
-
-/*
- * Complex access routines -- macros
- */
-
-#define strncpy_from_user lstrncpy_from_user
-#define strnlen_user lstrnlen_user
-#define strlen_user(str) lstrnlen_user(str, 0x7fffffffL)
-#define clear_user lclear_user
-#define __clear_user lclear_user
-
-unsigned long copy_to_user(void __user *dst, const void *src, unsigned long len);
-#define __copy_to_user copy_to_user
-unsigned long copy_from_user(void *dst, const void __user *src, unsigned long len);
-#define __copy_from_user copy_from_user
-unsigned long copy_in_user(void __user *dst, const void __user *src, unsigned long len);
-#define __copy_in_user copy_in_user
-#define __copy_to_user_inatomic __copy_to_user
-#define __copy_from_user_inatomic __copy_from_user
-
-#endif /* __PARISC_UACCESS_H */
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