x86, um: ... and asm-x86 move

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 0 insertions, 326 deletions

diff --git a/include/asm-x86/string_32.h b/include/asm-x86/string_32.h
deleted file mode 100644
index 487843ed245a..000000000000
--- a/include/asm-x86/string_32.h
+++ /dev/null
@@ -1,326 +0,0 @@
-#ifndef ASM_X86__STRING_32_H
-#define ASM_X86__STRING_32_H
-
-#ifdef __KERNEL__
-
-/* Let gcc decide whether to inline or use the out of line functions */
-
-#define __HAVE_ARCH_STRCPY
-extern char *strcpy(char *dest, const char *src);
-
-#define __HAVE_ARCH_STRNCPY
-extern char *strncpy(char *dest, const char *src, size_t count);
-
-#define __HAVE_ARCH_STRCAT
-extern char *strcat(char *dest, const char *src);
-
-#define __HAVE_ARCH_STRNCAT
-extern char *strncat(char *dest, const char *src, size_t count);
-
-#define __HAVE_ARCH_STRCMP
-extern int strcmp(const char *cs, const char *ct);
-
-#define __HAVE_ARCH_STRNCMP
-extern int strncmp(const char *cs, const char *ct, size_t count);
-
-#define __HAVE_ARCH_STRCHR
-extern char *strchr(const char *s, int c);
-
-#define __HAVE_ARCH_STRLEN
-extern size_t strlen(const char *s);
-
-static __always_inline void *__memcpy(void *to, const void *from, size_t n)
-{
-	int d0, d1, d2;
-	asm volatile("rep ; movsl\n\t"
-		     "movl %4,%%ecx\n\t"
-		     "andl $3,%%ecx\n\t"
-		     "jz 1f\n\t"
-		     "rep ; movsb\n\t"
-		     "1:"
-		     : "=&c" (d0), "=&D" (d1), "=&S" (d2)
-		     : "0" (n / 4), "g" (n), "1" ((long)to), "2" ((long)from)
-		     : "memory");
-	return to;
-}
-
-/*
- * This looks ugly, but the compiler can optimize it totally,
- * as the count is constant.
- */
-static __always_inline void *__constant_memcpy(void *to, const void *from,
-					       size_t n)
-{
-	long esi, edi;
-	if (!n)
-		return to;
-
-	switch (n) {
-	case 1:
-		*(char *)to = *(char *)from;
-		return to;
-	case 2:
-		*(short *)to = *(short *)from;
-		return to;
-	case 4:
-		*(int *)to = *(int *)from;
-		return to;
-
-	case 3:
-		*(short *)to = *(short *)from;
-		*((char *)to + 2) = *((char *)from + 2);
-		return to;
-	case 5:
-		*(int *)to = *(int *)from;
-		*((char *)to + 4) = *((char *)from + 4);
-		return to;
-	case 6:
-		*(int *)to = *(int *)from;
-		*((short *)to + 2) = *((short *)from + 2);
-		return to;
-	case 8:
-		*(int *)to = *(int *)from;
-		*((int *)to + 1) = *((int *)from + 1);
-		return to;
-	}
-
-	esi = (long)from;
-	edi = (long)to;
-	if (n >= 5 * 4) {
-		/* large block: use rep prefix */
-		int ecx;
-		asm volatile("rep ; movsl"
-			     : "=&c" (ecx), "=&D" (edi), "=&S" (esi)
-			     : "0" (n / 4), "1" (edi), "2" (esi)
-			     : "memory"
-		);
-	} else {
-		/* small block: don't clobber ecx + smaller code */
-		if (n >= 4 * 4)
-			asm volatile("movsl"
-				     : "=&D"(edi), "=&S"(esi)
-				     : "0"(edi), "1"(esi)
-				     : "memory");
-		if (n >= 3 * 4)
-			asm volatile("movsl"
-				     : "=&D"(edi), "=&S"(esi)
-				     : "0"(edi), "1"(esi)
-				     : "memory");
-		if (n >= 2 * 4)
-			asm volatile("movsl"
-				     : "=&D"(edi), "=&S"(esi)
-				     : "0"(edi), "1"(esi)
-				     : "memory");
-		if (n >= 1 * 4)
-			asm volatile("movsl"
-				     : "=&D"(edi), "=&S"(esi)
-				     : "0"(edi), "1"(esi)
-				     : "memory");
-	}
-	switch (n % 4) {
-		/* tail */
-	case 0:
-		return to;
-	case 1:
-		asm volatile("movsb"
-			     : "=&D"(edi), "=&S"(esi)
-			     : "0"(edi), "1"(esi)
-			     : "memory");
-		return to;
-	case 2:
-		asm volatile("movsw"
-			     : "=&D"(edi), "=&S"(esi)
-			     : "0"(edi), "1"(esi)
-			     : "memory");
-		return to;
-	default:
-		asm volatile("movsw\n\tmovsb"
-			     : "=&D"(edi), "=&S"(esi)
-			     : "0"(edi), "1"(esi)
-			     : "memory");
-		return to;
-	}
-}
-
-#define __HAVE_ARCH_MEMCPY
-
-#ifdef CONFIG_X86_USE_3DNOW
-
-#include <asm/mmx.h>
-
-/*
- *	This CPU favours 3DNow strongly (eg AMD Athlon)
- */
-
-static inline void *__constant_memcpy3d(void *to, const void *from, size_t len)
-{
-	if (len < 512)
-		return __constant_memcpy(to, from, len);
-	return _mmx_memcpy(to, from, len);
-}
-
-static inline void *__memcpy3d(void *to, const void *from, size_t len)
-{
-	if (len < 512)
-		return __memcpy(to, from, len);
-	return _mmx_memcpy(to, from, len);
-}
-
-#define memcpy(t, f, n)				\
-	(__builtin_constant_p((n))		\
-	 ? __constant_memcpy3d((t), (f), (n))	\
-	 : __memcpy3d((t), (f), (n)))
-
-#else
-
-/*
- *	No 3D Now!
- */
-
-#define memcpy(t, f, n)				\
-	(__builtin_constant_p((n))		\
-	 ? __constant_memcpy((t), (f), (n))	\
-	 : __memcpy((t), (f), (n)))
-
-#endif
-
-#define __HAVE_ARCH_MEMMOVE
-void *memmove(void *dest, const void *src, size_t n);
-
-#define memcmp __builtin_memcmp
-
-#define __HAVE_ARCH_MEMCHR
-extern void *memchr(const void *cs, int c, size_t count);
-
-static inline void *__memset_generic(void *s, char c, size_t count)
-{
-	int d0, d1;
-	asm volatile("rep\n\t"
-		     "stosb"
-		     : "=&c" (d0), "=&D" (d1)
-		     : "a" (c), "1" (s), "0" (count)
-		     : "memory");
-	return s;
-}
-
-/* we might want to write optimized versions of these later */
-#define __constant_count_memset(s, c, count) __memset_generic((s), (c), (count))
-
-/*
- * memset(x, 0, y) is a reasonably common thing to do, so we want to fill
- * things 32 bits at a time even when we don't know the size of the
- * area at compile-time..
- */
-static __always_inline
-void *__constant_c_memset(void *s, unsigned long c, size_t count)
-{
-	int d0, d1;
-	asm volatile("rep ; stosl\n\t"
-		     "testb $2,%b3\n\t"
-		     "je 1f\n\t"
-		     "stosw\n"
-		     "1:\ttestb $1,%b3\n\t"
-		     "je 2f\n\t"
-		     "stosb\n"
-		     "2:"
-		     : "=&c" (d0), "=&D" (d1)
-		     : "a" (c), "q" (count), "0" (count/4), "1" ((long)s)
-		     : "memory");
-	return s;
-}
-
-/* Added by Gertjan van Wingerde to make minix and sysv module work */
-#define __HAVE_ARCH_STRNLEN
-extern size_t strnlen(const char *s, size_t count);
-/* end of additional stuff */
-
-#define __HAVE_ARCH_STRSTR
-extern char *strstr(const char *cs, const char *ct);
-
-/*
- * This looks horribly ugly, but the compiler can optimize it totally,
- * as we by now know that both pattern and count is constant..
- */
-static __always_inline
-void *__constant_c_and_count_memset(void *s, unsigned long pattern,
-				    size_t count)
-{
-	switch (count) {
-	case 0:
-		return s;
-	case 1:
-		*(unsigned char *)s = pattern & 0xff;
-		return s;
-	case 2:
-		*(unsigned short *)s = pattern & 0xffff;
-		return s;
-	case 3:
-		*(unsigned short *)s = pattern & 0xffff;
-		*((unsigned char *)s + 2) = pattern & 0xff;
-		return s;
-	case 4:
-		*(unsigned long *)s = pattern;
-		return s;
-	}
-
-#define COMMON(x)							\
-	asm volatile("rep ; stosl"					\
-		     x							\
-		     : "=&c" (d0), "=&D" (d1)				\
-		     : "a" (eax), "0" (count/4), "1" ((long)s)	\
-		     : "memory")
-
-	{
-		int d0, d1;
-#if __GNUC__ == 4 && __GNUC_MINOR__ == 0
-		/* Workaround for broken gcc 4.0 */
-		register unsigned long eax asm("%eax") = pattern;
-#else
-		unsigned long eax = pattern;
-#endif
-
-		switch (count % 4) {
-		case 0:
-			COMMON("");
-			return s;
-		case 1:
-			COMMON("\n\tstosb");
-			return s;
-		case 2:
-			COMMON("\n\tstosw");
-			return s;
-		default:
-			COMMON("\n\tstosw\n\tstosb");
-			return s;
-		}
-	}
-
-#undef COMMON
-}
-
-#define __constant_c_x_memset(s, c, count)			\
-	(__builtin_constant_p(count)				\
-	 ? __constant_c_and_count_memset((s), (c), (count))	\
-	 : __constant_c_memset((s), (c), (count)))
-
-#define __memset(s, c, count)				\
-	(__builtin_constant_p(count)			\
-	 ? __constant_count_memset((s), (c), (count))	\
-	 : __memset_generic((s), (c), (count)))
-
-#define __HAVE_ARCH_MEMSET
-#define memset(s, c, count)						\
-	(__builtin_constant_p(c)					\
-	 ? __constant_c_x_memset((s), (0x01010101UL * (unsigned char)(c)), \
-				 (count))				\
-	 : __memset((s), (c), (count)))
-
-/*
- * find the first occurrence of byte 'c', or 1 past the area if none
- */
-#define __HAVE_ARCH_MEMSCAN
-extern void *memscan(void *addr, int c, size_t size);
-
-#endif /* __KERNEL__ */
-
-#endif /* ASM_X86__STRING_32_H */