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authorDavid S. Miller <davem@davemloft.net>2011-07-29 09:42:07 -0700
committerDavid S. Miller <davem@davemloft.net>2011-08-02 21:28:50 -0700
commitef7c4d4675d2a9206f913f26ca1a5cd41bff9d41 (patch)
tree88839b80e603ba395882df98b8a8c8f8385337b1 /arch/sparc/include
parente95ade083939dcb4b0c51c1a2c8504ea9ef3d6ef (diff)
sparc: Use popc if possible for hweight routines.
Just like powerpc, we code patch at boot time. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/include')
-rw-r--r--arch/sparc/include/asm/bitops_64.h42
1 files changed, 4 insertions, 38 deletions
diff --git a/arch/sparc/include/asm/bitops_64.h b/arch/sparc/include/asm/bitops_64.h
index 325e295d60de..3588807baa6e 100644
--- a/arch/sparc/include/asm/bitops_64.h
+++ b/arch/sparc/include/asm/bitops_64.h
@@ -42,45 +42,11 @@ extern void change_bit(unsigned long nr, volatile unsigned long *addr);
* of bits set) of a N-bit word
*/
-#ifdef ULTRA_HAS_POPULATION_COUNT
+extern unsigned long __arch_hweight64(__u64 w);
+extern unsigned int __arch_hweight32(unsigned int w);
+extern unsigned int __arch_hweight16(unsigned int w);
+extern unsigned int __arch_hweight8(unsigned int w);
-static inline unsigned int __arch_hweight64(unsigned long w)
-{
- unsigned int res;
-
- __asm__ ("popc %1,%0" : "=r" (res) : "r" (w));
- return res;
-}
-
-static inline unsigned int __arch_hweight32(unsigned int w)
-{
- unsigned int res;
-
- __asm__ ("popc %1,%0" : "=r" (res) : "r" (w & 0xffffffff));
- return res;
-}
-
-static inline unsigned int __arch_hweight16(unsigned int w)
-{
- unsigned int res;
-
- __asm__ ("popc %1,%0" : "=r" (res) : "r" (w & 0xffff));
- return res;
-}
-
-static inline unsigned int __arch_hweight8(unsigned int w)
-{
- unsigned int res;
-
- __asm__ ("popc %1,%0" : "=r" (res) : "r" (w & 0xff));
- return res;
-}
-
-#else
-
-#include <asm-generic/bitops/arch_hweight.h>
-
-#endif
#include <asm-generic/bitops/const_hweight.h>
#include <asm-generic/bitops/lock.h>
#endif /* __KERNEL__ */