From: Akinobu Mita <akinobu.mita@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Paul Mackerras <paulus@samba.org>, Akinobu Mita <akinobu.mita@gmail.com>
Subject: [PATCH] powerpc: use asm-generic/bitops/le.h
Date: Sun, 4 Nov 2012 21:03:45 +0900 [thread overview]
Message-ID: <1352030625-3471-3-git-send-email-akinobu.mita@gmail.com> (raw)
In-Reply-To: <1352030625-3471-1-git-send-email-akinobu.mita@gmail.com>
The only difference between powerpc and asm-generic le-bitops is
test_bit_le(). Usually all bitops require a long aligned bitmap.
But powerpc test_bit_le() can take an unaligned address.
There is no special callsite of test_bit_le() that needs unaligned
access in powerpc as far as I can see. So convert to use
asm-generic/bitops/le.h for powerpc.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@lists.ozlabs.org
---
arch/powerpc/include/asm/bitops.h | 55 +--------------------------------------
1 file changed, 1 insertion(+), 54 deletions(-)
diff --git a/arch/powerpc/include/asm/bitops.h b/arch/powerpc/include/asm/bitops.h
index 920596f..ef918a2 100644
--- a/arch/powerpc/include/asm/bitops.h
+++ b/arch/powerpc/include/asm/bitops.h
@@ -278,61 +278,8 @@ unsigned long __arch_hweight64(__u64 w);
#include <asm-generic/bitops/find.h>
/* Little-endian versions */
+#include <asm-generic/bitops/le.h>
-static __inline__ int test_bit_le(unsigned long nr,
- __const__ void *addr)
-{
- __const__ unsigned char *tmp = (__const__ unsigned char *) addr;
- return (tmp[nr >> 3] >> (nr & 7)) & 1;
-}
-
-static inline void set_bit_le(int nr, void *addr)
-{
- set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
-}
-
-static inline void clear_bit_le(int nr, void *addr)
-{
- clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
-}
-
-static inline void __set_bit_le(int nr, void *addr)
-{
- __set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
-}
-
-static inline void __clear_bit_le(int nr, void *addr)
-{
- __clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
-}
-
-static inline int test_and_set_bit_le(int nr, void *addr)
-{
- return test_and_set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
-}
-
-static inline int test_and_clear_bit_le(int nr, void *addr)
-{
- return test_and_clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
-}
-
-static inline int __test_and_set_bit_le(int nr, void *addr)
-{
- return __test_and_set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
-}
-
-static inline int __test_and_clear_bit_le(int nr, void *addr)
-{
- return __test_and_clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
-}
-
-#define find_first_zero_bit_le(addr, size) \
- find_next_zero_bit_le((addr), (size), 0)
-unsigned long find_next_zero_bit_le(const void *addr,
- unsigned long size, unsigned long offset);
-
-unsigned long find_next_bit_le(const void *addr,
- unsigned long size, unsigned long offset);
/* Bitmap functions for the ext2 filesystem */
#include <asm-generic/bitops/ext2-atomic-setbit.h>
--
1.7.11.7
prev parent reply other threads:[~2012-11-04 12:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-04 12:03 [PATCH] powerpc: iommu: use bitmap library Akinobu Mita
2012-11-04 12:03 ` [PATCH] powerpc: remove BITOP_MASK and BITOP_WORD from asm/bitops.h Akinobu Mita
2012-11-04 12:03 ` Akinobu Mita [this message]
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