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authorLinus Torvalds <torvalds@linux-foundation.org>2011-08-05 06:42:36 -1000
committerLinus Torvalds <torvalds@linux-foundation.org>2011-08-05 06:42:36 -1000
commit8cd290a07d095f3b354e3448bcd7757393c29cd5 (patch)
treeaf33cb7677646bc506f1fae34676834dc45584a4 /arch/sparc/include/asm/bitops_64.h
parent07d952dc669bb70a9716a81e140e89b7d4969f09 (diff)
parent961f65fc41cdc1f9099a6075258816c0db98e390 (diff)
downloadblackbird-op-linux-8cd290a07d095f3b354e3448bcd7757393c29cd5.tar.gz
blackbird-op-linux-8cd290a07d095f3b354e3448bcd7757393c29cd5.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc: Size mondo queues more sanely. sparc: Access kernel TSB using physical addressing when possible. sparc: Fix __atomic_add_unless() return value. sparc: use kbuild-generic support for true asm-generic header files sparc: Use popc when possible for ffs/__ffs/ffz. sparc: Set reboot-cmd using reboot data hypervisor call if available. sparc: Add some missing hypervisor API groups. sparc: Use hweight64() in popc emulation. sparc: Use popc if possible for hweight routines. sparc: Minor tweaks to Niagara page copy/clear. sparc: Sanitize cpu feature detection and reporting.
Diffstat (limited to 'arch/sparc/include/asm/bitops_64.h')
-rw-r--r--arch/sparc/include/asm/bitops_64.h49
1 files changed, 8 insertions, 41 deletions
diff --git a/arch/sparc/include/asm/bitops_64.h b/arch/sparc/include/asm/bitops_64.h
index 325e295d60de..29011cc0e4be 100644
--- a/arch/sparc/include/asm/bitops_64.h
+++ b/arch/sparc/include/asm/bitops_64.h
@@ -26,61 +26,28 @@ extern void change_bit(unsigned long nr, volatile unsigned long *addr);
#define smp_mb__before_clear_bit() barrier()
#define smp_mb__after_clear_bit() barrier()
-#include <asm-generic/bitops/ffz.h>
-#include <asm-generic/bitops/__ffs.h>
#include <asm-generic/bitops/fls.h>
#include <asm-generic/bitops/__fls.h>
#include <asm-generic/bitops/fls64.h>
#ifdef __KERNEL__
+extern int ffs(int x);
+extern unsigned long __ffs(unsigned long);
+
+#include <asm-generic/bitops/ffz.h>
#include <asm-generic/bitops/sched.h>
-#include <asm-generic/bitops/ffs.h>
/*
* hweightN: returns the hamming weight (i.e. the number
* of bits set) of a N-bit word
*/
-#ifdef ULTRA_HAS_POPULATION_COUNT
-
-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;
-}
+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_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__ */
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