| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | #ifndef _ASM_X86_STRING_H |
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| 3 | #define _ASM_X86_STRING_H |
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| 4 | |
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| 5 | #ifdef CONFIG_X86_32 |
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| 6 | # include <asm/string_32.h> |
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| 7 | #else |
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| 8 | # include <asm/string_64.h> |
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| 9 | #endif |
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| 10 | |
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| 11 | static __always_inline void *__inline_memcpy(void *to, const void *from, size_t len) |
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| 12 | { |
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| 13 | void *ret = to; |
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| 14 | |
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| 15 | asm volatile("rep movsb" |
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| 16 | : "+D" (to), "+S" (from), "+c" (len) |
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| 17 | : : "memory" ); |
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| 18 | return ret; |
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| 19 | } |
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| 20 | |
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| 21 | static __always_inline void *__inline_memset(void *s, int v, size_t n) |
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| 22 | { |
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| 23 | void *ret = s; |
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| 24 | |
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| 25 | asm volatile("rep stosb" |
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| 26 | : "+D" (s), "+c" (n) |
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| 27 | : "a" ((uint8_t)v) |
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| 28 | : "memory" ); |
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| 29 | return ret; |
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| 30 | } |
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| 31 | |
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| 32 | #endif /* _ASM_X86_STRING_H */ |
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| 33 | |
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