diff options
author | Takashi Iwai <tiwai@suse.de> | 2015-10-23 06:57:50 +0200 |
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committer | Takashi Iwai <tiwai@suse.de> | 2015-10-23 06:57:50 +0200 |
commit | 274035751e25ee15a064e43cde7b4e7a9b75d921 (patch) | |
tree | bf5f3f18f14855043324ef02a116532d866e3dac /arch/tile/include/asm | |
parent | 53e597b1d194910bef53ed0632da329fef497904 (diff) | |
parent | a5be88f63eaff1c03774aecd7388015cb87f6b2c (diff) |
Merge branch 'topic/hw-constraint-single' into for-next
Diffstat (limited to 'arch/tile/include/asm')
-rw-r--r-- | arch/tile/include/asm/Kbuild | 1 | ||||
-rw-r--r-- | arch/tile/include/asm/word-at-a-time.h | 8 |
2 files changed, 7 insertions, 2 deletions
diff --git a/arch/tile/include/asm/Kbuild b/arch/tile/include/asm/Kbuild index 0b6cacaad933..ba35c41c71ff 100644 --- a/arch/tile/include/asm/Kbuild +++ b/arch/tile/include/asm/Kbuild @@ -40,5 +40,4 @@ generic-y += termbits.h generic-y += termios.h generic-y += trace_clock.h generic-y += types.h -generic-y += word-at-a-time.h generic-y += xor.h diff --git a/arch/tile/include/asm/word-at-a-time.h b/arch/tile/include/asm/word-at-a-time.h index 9e5ce0d7b292..b66a693c2c34 100644 --- a/arch/tile/include/asm/word-at-a-time.h +++ b/arch/tile/include/asm/word-at-a-time.h @@ -6,7 +6,7 @@ struct word_at_a_time { /* unused */ }; #define WORD_AT_A_TIME_CONSTANTS {} -/* Generate 0x01 byte values for non-zero bytes using a SIMD instruction. */ +/* Generate 0x01 byte values for zero bytes using a SIMD instruction. */ static inline unsigned long has_zero(unsigned long val, unsigned long *data, const struct word_at_a_time *c) { @@ -33,4 +33,10 @@ static inline long find_zero(unsigned long mask) #endif } +#ifdef __BIG_ENDIAN +#define zero_bytemask(mask) (~1ul << (63 - __builtin_clzl(mask))) +#else +#define zero_bytemask(mask) ((2ul << __builtin_ctzl(mask)) - 1) +#endif + #endif /* _ASM_WORD_AT_A_TIME_H */ |