aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-sh/uaccess_32.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-sh/uaccess_32.h')
-rw-r--r--include/asm-sh/uaccess_32.h249
1 files changed, 0 insertions, 249 deletions
diff --git a/include/asm-sh/uaccess_32.h b/include/asm-sh/uaccess_32.h
deleted file mode 100644
index 892fd6dea9db..000000000000
--- a/include/asm-sh/uaccess_32.h
+++ /dev/null
@@ -1,249 +0,0 @@
-/*
- * User space memory access functions
- *
- * Copyright (C) 1999, 2002 Niibe Yutaka
- * Copyright (C) 2003 - 2008 Paul Mundt
- *
- * Based on:
- * MIPS implementation version 1.15 by
- * Copyright (C) 1996, 1997, 1998 by Ralf Baechle
- * and i386 version.
- */
-#ifndef __ASM_SH_UACCESS_32_H
-#define __ASM_SH_UACCESS_32_H
-
-#define __get_user_size(x,ptr,size,retval) \
-do { \
- retval = 0; \
- switch (size) { \
- case 1: \
- __get_user_asm(x, ptr, retval, "b"); \
- break; \
- case 2: \
- __get_user_asm(x, ptr, retval, "w"); \
- break; \
- case 4: \
- __get_user_asm(x, ptr, retval, "l"); \
- break; \
- default: \
- __get_user_unknown(); \
- break; \
- } \
-} while (0)
-
-#ifdef CONFIG_MMU
-#define __get_user_asm(x, addr, err, insn) \
-({ \
-__asm__ __volatile__( \
- "1:\n\t" \
- "mov." insn " %2, %1\n\t" \
- "2:\n" \
- ".section .fixup,\"ax\"\n" \
- "3:\n\t" \
- "mov #0, %1\n\t" \
- "mov.l 4f, %0\n\t" \
- "jmp @%0\n\t" \
- " mov %3, %0\n\t" \
- ".balign 4\n" \
- "4: .long 2b\n\t" \
- ".previous\n" \
- ".section __ex_table,\"a\"\n\t" \
- ".long 1b, 3b\n\t" \
- ".previous" \
- :"=&r" (err), "=&r" (x) \
- :"m" (__m(addr)), "i" (-EFAULT), "0" (err)); })
-#else
-#define __get_user_asm(x, addr, err, insn) \
-do { \
- __asm__ __volatile__ ( \
- "mov." insn " %1, %0\n\t" \
- : "=&r" (x) \
- : "m" (__m(addr)) \
- ); \
-} while (0)
-#endif /* CONFIG_MMU */
-
-extern void __get_user_unknown(void);
-
-#define __put_user_size(x,ptr,size,retval) \
-do { \
- retval = 0; \
- switch (size) { \
- case 1: \
- __put_user_asm(x, ptr, retval, "b"); \
- break; \
- case 2: \
- __put_user_asm(x, ptr, retval, "w"); \
- break; \
- case 4: \
- __put_user_asm((u32)x, ptr, \
- retval, "l"); \
- break; \
- case 8: \
- __put_user_u64(x, ptr, retval); \
- break; \
- default: \
- __put_user_unknown(); \
- } \
-} while (0)
-
-#ifdef CONFIG_MMU
-#define __put_user_asm(x, addr, err, insn) \
-do { \
- __asm__ __volatile__ ( \
- "1:\n\t" \
- "mov." insn " %1, %2\n\t" \
- "2:\n" \
- ".section .fixup,\"ax\"\n" \
- "3:\n\t" \
- "mov.l 4f, %0\n\t" \
- "jmp @%0\n\t" \
- " mov %3, %0\n\t" \
- ".balign 4\n" \
- "4: .long 2b\n\t" \
- ".previous\n" \
- ".section __ex_table,\"a\"\n\t" \
- ".long 1b, 3b\n\t" \
- ".previous" \
- : "=&r" (err) \
- : "r" (x), "m" (__m(addr)), "i" (-EFAULT), \
- "0" (err) \
- : "memory" \
- ); \
-} while (0)
-#else
-#define __put_user_asm(x, addr, err, insn) \
-do { \
- __asm__ __volatile__ ( \
- "mov." insn " %0, %1\n\t" \
- : /* no outputs */ \
- : "r" (x), "m" (__m(addr)) \
- : "memory" \
- ); \
-} while (0)
-#endif /* CONFIG_MMU */
-
-#if defined(CONFIG_CPU_LITTLE_ENDIAN)
-#define __put_user_u64(val,addr,retval) \
-({ \
-__asm__ __volatile__( \
- "1:\n\t" \
- "mov.l %R1,%2\n\t" \
- "mov.l %S1,%T2\n\t" \
- "2:\n" \
- ".section .fixup,\"ax\"\n" \
- "3:\n\t" \
- "mov.l 4f,%0\n\t" \
- "jmp @%0\n\t" \
- " mov %3,%0\n\t" \
- ".balign 4\n" \
- "4: .long 2b\n\t" \
- ".previous\n" \
- ".section __ex_table,\"a\"\n\t" \
- ".long 1b, 3b\n\t" \
- ".previous" \
- : "=r" (retval) \
- : "r" (val), "m" (__m(addr)), "i" (-EFAULT), "0" (retval) \
- : "memory"); })
-#else
-#define __put_user_u64(val,addr,retval) \
-({ \
-__asm__ __volatile__( \
- "1:\n\t" \
- "mov.l %S1,%2\n\t" \
- "mov.l %R1,%T2\n\t" \
- "2:\n" \
- ".section .fixup,\"ax\"\n" \
- "3:\n\t" \
- "mov.l 4f,%0\n\t" \
- "jmp @%0\n\t" \
- " mov %3,%0\n\t" \
- ".balign 4\n" \
- "4: .long 2b\n\t" \
- ".previous\n" \
- ".section __ex_table,\"a\"\n\t" \
- ".long 1b, 3b\n\t" \
- ".previous" \
- : "=r" (retval) \
- : "r" (val), "m" (__m(addr)), "i" (-EFAULT), "0" (retval) \
- : "memory"); })
-#endif
-
-extern void __put_user_unknown(void);
-
-static inline int
-__strncpy_from_user(unsigned long __dest, unsigned long __user __src, int __count)
-{
- __kernel_size_t res;
- unsigned long __dummy, _d, _s, _c;
-
- __asm__ __volatile__(
- "9:\n"
- "mov.b @%2+, %1\n\t"
- "cmp/eq #0, %1\n\t"
- "bt/s 2f\n"
- "1:\n"
- "mov.b %1, @%3\n\t"
- "dt %4\n\t"
- "bf/s 9b\n\t"
- " add #1, %3\n\t"
- "2:\n\t"
- "sub %4, %0\n"
- "3:\n"
- ".section .fixup,\"ax\"\n"
- "4:\n\t"
- "mov.l 5f, %1\n\t"
- "jmp @%1\n\t"
- " mov %9, %0\n\t"
- ".balign 4\n"
- "5: .long 3b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .balign 4\n"
- " .long 9b,4b\n"
- ".previous"
- : "=r" (res), "=&z" (__dummy), "=r" (_s), "=r" (_d), "=r"(_c)
- : "0" (__count), "2" (__src), "3" (__dest), "4" (__count),
- "i" (-EFAULT)
- : "memory", "t");
-
- return res;
-}
-
-/*
- * Return the size of a string (including the ending 0 even when we have
- * exceeded the maximum string length).
- */
-static inline long __strnlen_user(const char __user *__s, long __n)
-{
- unsigned long res;
- unsigned long __dummy;
-
- __asm__ __volatile__(
- "1:\t"
- "mov.b @(%0,%3), %1\n\t"
- "cmp/eq %4, %0\n\t"
- "bt/s 2f\n\t"
- " add #1, %0\n\t"
- "tst %1, %1\n\t"
- "bf 1b\n\t"
- "2:\n"
- ".section .fixup,\"ax\"\n"
- "3:\n\t"
- "mov.l 4f, %1\n\t"
- "jmp @%1\n\t"
- " mov #0, %0\n"
- ".balign 4\n"
- "4: .long 2b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .balign 4\n"
- " .long 1b,3b\n"
- ".previous"
- : "=z" (res), "=&r" (__dummy)
- : "0" (0), "r" (__s), "r" (__n)
- : "t");
- return res;
-}
-
-#endif /* __ASM_SH_UACCESS_32_H */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.