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author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-12-15 17:13:26 -0500 |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-12-15 17:13:26 -0500 |
commit | 7e1548a597ef7e26d5d62f8be3be6da9e101b26c (patch) | |
tree | fe6cbf4d9a3c1afdba04fb276fef0f932403727c /arch/arm/include | |
parent | 1f7f569c0ae6e619504095eabf796edd712d943d (diff) | |
parent | 2619bc327417f549f1c89d5ef9b4a4aa768f41a2 (diff) |
Merge branch 'omap3-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 into devel
Diffstat (limited to 'arch/arm/include')
-rw-r--r-- | arch/arm/include/asm/bitops.h | 16 | ||||
-rw-r--r-- | arch/arm/include/asm/processor.h | 2 |
2 files changed, 11 insertions, 7 deletions
diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h index 9a1db20e032a..63a481fbbed4 100644 --- a/arch/arm/include/asm/bitops.h +++ b/arch/arm/include/asm/bitops.h | |||
@@ -237,6 +237,7 @@ extern int _find_next_bit_be(const unsigned long *p, int size, int offset); | |||
237 | #if __LINUX_ARM_ARCH__ < 5 | 237 | #if __LINUX_ARM_ARCH__ < 5 |
238 | 238 | ||
239 | #include <asm-generic/bitops/ffz.h> | 239 | #include <asm-generic/bitops/ffz.h> |
240 | #include <asm-generic/bitops/__fls.h> | ||
240 | #include <asm-generic/bitops/__ffs.h> | 241 | #include <asm-generic/bitops/__ffs.h> |
241 | #include <asm-generic/bitops/fls.h> | 242 | #include <asm-generic/bitops/fls.h> |
242 | #include <asm-generic/bitops/ffs.h> | 243 | #include <asm-generic/bitops/ffs.h> |
@@ -277,16 +278,19 @@ static inline int constant_fls(int x) | |||
277 | * the clz instruction for much better code efficiency. | 278 | * the clz instruction for much better code efficiency. |
278 | */ | 279 | */ |
279 | 280 | ||
280 | #define __fls(x) \ | ||
281 | ( __builtin_constant_p(x) ? constant_fls(x) : \ | ||
282 | ({ int __r; asm("clz\t%0, %1" : "=r"(__r) : "r"(x) : "cc"); 32-__r; }) ) | ||
283 | |||
284 | /* Implement fls() in C so that 64-bit args are suitably truncated */ | ||
285 | static inline int fls(int x) | 281 | static inline int fls(int x) |
286 | { | 282 | { |
287 | return __fls(x); | 283 | int ret; |
284 | |||
285 | if (__builtin_constant_p(x)) | ||
286 | return constant_fls(x); | ||
287 | |||
288 | asm("clz\t%0, %1" : "=r" (ret) : "r" (x) : "cc"); | ||
289 | ret = 32 - ret; | ||
290 | return ret; | ||
288 | } | 291 | } |
289 | 292 | ||
293 | #define __fls(x) (fls(x) - 1) | ||
290 | #define ffs(x) ({ unsigned long __t = (x); fls(__t & -__t); }) | 294 | #define ffs(x) ({ unsigned long __t = (x); fls(__t & -__t); }) |
291 | #define __ffs(x) (ffs(x) - 1) | 295 | #define __ffs(x) (ffs(x) - 1) |
292 | #define ffz(x) __ffs( ~(x) ) | 296 | #define ffz(x) __ffs( ~(x) ) |
diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h index 2320508443a5..1845892260e7 100644 --- a/arch/arm/include/asm/processor.h +++ b/arch/arm/include/asm/processor.h | |||
@@ -23,7 +23,7 @@ | |||
23 | #include <asm/types.h> | 23 | #include <asm/types.h> |
24 | 24 | ||
25 | #ifdef __KERNEL__ | 25 | #ifdef __KERNEL__ |
26 | #define STACK_TOP ((current->personality == PER_LINUX_32BIT) ? \ | 26 | #define STACK_TOP ((current->personality & ADDR_LIMIT_32BIT) ? \ |
27 | TASK_SIZE : TASK_SIZE_26) | 27 | TASK_SIZE : TASK_SIZE_26) |
28 | #define STACK_TOP_MAX TASK_SIZE | 28 | #define STACK_TOP_MAX TASK_SIZE |
29 | #endif | 29 | #endif |