diff options
| author | Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> | 2017-03-28 01:07:40 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-08-17 23:04:35 +1000 |
| commit | 694fc88ce271fd48f7939c032c1247fef81db57f (patch) | |
| tree | 13473e23faddb19b97ef49d8a89cee65a584e8f1 /arch/powerpc/include/asm/string.h | |
| parent | 00e7c259e9c44f414ead5fc9bb3c459d8235045c (diff) | |
powerpc/string: Implement optimized memset variants
Based on Matthew Wilcox's patches for other architectures.
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/string.h')
| -rw-r--r-- | arch/powerpc/include/asm/string.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/string.h b/arch/powerpc/include/asm/string.h index da3cdffca440..b0e82466d4e8 100644 --- a/arch/powerpc/include/asm/string.h +++ b/arch/powerpc/include/asm/string.h @@ -23,6 +23,30 @@ extern void * memmove(void *,const void *,__kernel_size_t); extern int memcmp(const void *,const void *,__kernel_size_t); extern void * memchr(const void *,int,__kernel_size_t); +#ifdef CONFIG_PPC64 +#define __HAVE_ARCH_MEMSET16 +#define __HAVE_ARCH_MEMSET32 +#define __HAVE_ARCH_MEMSET64 + +extern void *__memset16(uint16_t *, uint16_t v, __kernel_size_t); +extern void *__memset32(uint32_t *, uint32_t v, __kernel_size_t); +extern void *__memset64(uint64_t *, uint64_t v, __kernel_size_t); + +static inline void *memset16(uint16_t *p, uint16_t v, __kernel_size_t n) +{ + return __memset16(p, v, n * 2); +} + +static inline void *memset32(uint32_t *p, uint32_t v, __kernel_size_t n) +{ + return __memset32(p, v, n * 4); +} + +static inline void *memset64(uint64_t *p, uint64_t v, __kernel_size_t n) +{ + return __memset64(p, v, n * 8); +} +#endif #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_STRING_H */ |