diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/include/asm/page.h | 11 |
1 files changed, 1 insertions, 10 deletions
diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h index 7b2ac6e44166..53eacbd4f09b 100644 --- a/arch/s390/include/asm/page.h +++ b/arch/s390/include/asm/page.h | |||
| @@ -37,16 +37,7 @@ static inline void storage_key_init_range(unsigned long start, unsigned long end | |||
| 37 | #endif | 37 | #endif |
| 38 | } | 38 | } |
| 39 | 39 | ||
| 40 | static inline void clear_page(void *page) | 40 | #define clear_page(page) memset((page), 0, PAGE_SIZE) |
| 41 | { | ||
| 42 | register unsigned long reg1 asm ("1") = 0; | ||
| 43 | register void *reg2 asm ("2") = page; | ||
| 44 | register unsigned long reg3 asm ("3") = 4096; | ||
| 45 | asm volatile( | ||
| 46 | " mvcl 2,0" | ||
| 47 | : "+d" (reg2), "+d" (reg3) : "d" (reg1) | ||
| 48 | : "memory", "cc"); | ||
| 49 | } | ||
| 50 | 41 | ||
| 51 | /* | 42 | /* |
| 52 | * copy_page uses the mvcl instruction with 0xb0 padding byte in order to | 43 | * copy_page uses the mvcl instruction with 0xb0 padding byte in order to |