diff options
author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-04-30 22:31:12 (GMT) |
---|---|---|
committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-05-02 15:00:44 (GMT) |
commit | fb72014d98afd51e85aab9c061344ef32d615606 (patch) | |
tree | 18713d4d1084870c604b512396b893944a2bbdab /tools/perf/util/include/linux | |
parent | bc4b473f1aa2ef785ccfd890a24a1de5a6660f98 (diff) | |
download | linux-fsl-qoriq-fb72014d98afd51e85aab9c061344ef32d615606.tar.xz |
perf tools: Don't use code surrounded by __KERNEL__
We need to refactor code to be explicitely shared by the kernel and at
least the tools/ userspace programs, so, till we do that, copy the bare
minimum bitmap/bitops code needed by tools/perf.
Reported-by: "H. Peter Anvin" <hpa@zytor.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/include/linux')
-rw-r--r-- | tools/perf/util/include/linux/bitmap.h | 38 | ||||
-rw-r--r-- | tools/perf/util/include/linux/bitops.h | 20 |
2 files changed, 44 insertions, 14 deletions
diff --git a/tools/perf/util/include/linux/bitmap.h b/tools/perf/util/include/linux/bitmap.h index 9450763..eda4416 100644 --- a/tools/perf/util/include/linux/bitmap.h +++ b/tools/perf/util/include/linux/bitmap.h @@ -1,3 +1,35 @@ -#include "../../../../include/linux/bitmap.h" -#include "../../../../include/asm-generic/bitops/find.h" -#include <linux/errno.h> +#ifndef _PERF_BITOPS_H +#define _PERF_BITOPS_H + +#include <string.h> +#include <linux/bitops.h> + +int __bitmap_weight(const unsigned long *bitmap, int bits); + +#define BITMAP_LAST_WORD_MASK(nbits) \ +( \ + ((nbits) % BITS_PER_LONG) ? \ + (1UL<<((nbits) % BITS_PER_LONG))-1 : ~0UL \ +) + +#define small_const_nbits(nbits) \ + (__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG) + +static inline void bitmap_zero(unsigned long *dst, int nbits) +{ + if (small_const_nbits(nbits)) + *dst = 0UL; + else { + int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long); + memset(dst, 0, len); + } +} + +static inline int bitmap_weight(const unsigned long *src, int nbits) +{ + if (small_const_nbits(nbits)) + return hweight_long(*src & BITMAP_LAST_WORD_MASK(nbits)); + return __bitmap_weight(src, nbits); +} + +#endif /* _PERF_BITOPS_H */ diff --git a/tools/perf/util/include/linux/bitops.h b/tools/perf/util/include/linux/bitops.h index 8d63116..bb4ac2e 100644 --- a/tools/perf/util/include/linux/bitops.h +++ b/tools/perf/util/include/linux/bitops.h @@ -1,13 +1,12 @@ #ifndef _PERF_LINUX_BITOPS_H_ #define _PERF_LINUX_BITOPS_H_ -#define __KERNEL__ +#include <linux/kernel.h> +#include <asm/hweight.h> -#define CONFIG_GENERIC_FIND_NEXT_BIT -#define CONFIG_GENERIC_FIND_FIRST_BIT -#include "../../../../include/linux/bitops.h" - -#undef __KERNEL__ +#define BITS_PER_LONG __WORDSIZE +#define BITS_PER_BYTE 8 +#define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long)) static inline void set_bit(int nr, unsigned long *addr) { @@ -20,10 +19,9 @@ static __always_inline int test_bit(unsigned int nr, const unsigned long *addr) (((unsigned long *)addr)[nr / BITS_PER_LONG])) != 0; } -unsigned long generic_find_next_zero_le_bit(const unsigned long *addr, unsigned - long size, unsigned long offset); - -unsigned long generic_find_next_le_bit(const unsigned long *addr, unsigned - long size, unsigned long offset); +static inline unsigned long hweight_long(unsigned long w) +{ + return sizeof(w) == 4 ? hweight32(w) : hweight64(w); +} #endif |