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authorUlrich Drepper <drepper@redhat.com>2007-03-26 20:16:39 +0000
committerUlrich Drepper <drepper@redhat.com>2007-03-26 20:16:39 +0000
commitfa6e3bc38aaf82c80759f5dbdc9ec0d60ce7ee51 (patch)
treeeb6cb888ca49ac0cb0c90745aa57ae7e2e20aa2b /sysdeps/powerpc/bits
parentc7693af7ef36972aa266030da26211db21fc82fb (diff)
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* sysdeps/powerpc/bits/atomic.h
[!MUTEX_HINT_ACQ]: Define MUTEX_HINT_ACQ. [!MUTEX_HINT_REL]: Define MUTEX_HINT_REL. (__arch_compare_and_exchange_val_32_acq): Add MUTEX_HINT_ACQ to lwarx. (__arch_compare_and_exchange_val_32_rel): Add MUTEX_HINT_REL to lwarx. (__arch_atomic_exchange_val_32_acq): Add MUTEX_HINT_ACQ to lwarx. (__arch_atomic_exchange_rel_32_rel): Add MUTEX_HINT_REL to lwarx. * sysdeps/powerpc/powerpc32/bits/atomic.h [_ARCH_PWR6 || _ARCH_PWR6X]: Define MUTEX_HINT_ACQ as ",1" and MUTEX_HINT_REL as ",0". (__arch_compare_and_exchange_bool_32_acq): Add MUTEX_HINT_ACQ to lwarx. (__arch_compare_and_exchange_bool_32_rel): Add MUTEX_HINT_REL to lwarx. * sysdeps/powerpc/powerpc64/bits/atomic.h [_ARCH_PWR6 || _ARCH_PWR6D]: Define MUTEX_HINT_ACQ as ",1" and MUTEX_HINT_REL as ",0". (__arch_compare_and_exchange_bool_32_acq): Add MUTEX_HINT_ACQ to lwarx. (__arch_compare_and_exchange_bool_32_rel): Add MUTEX_HINT_REL to lwarx. (__arch_compare_and_exchange_bool_64_acq): Add MUTEX_HINT_ACQ to lwarx. (__arch_compare_and_exchange_bool_64_rel): Add MUTEX_HINT_REL to lwarx. (__arch_compare_and_exchange_val_64_acq): Add MUTEX_HINT_ACQ to lwarx. (__arch_compare_and_exchange_val_64_rel): Add MUTEX_HINT_REL to lwarx. (__arch_atomic_exchange_val_64_acq): Add MUTEX_HINT_ACQ to lwarx. (__arch_atomic_exchange_rel_64_rel): Add MUTEX_HINT_REL to lwarx. 2007-03-20 Jakub Jelinek <jakub@redhat.com>
Diffstat (limited to 'sysdeps/powerpc/bits')
-rw-r--r--sysdeps/powerpc/bits/atomic.h15
1 files changed, 11 insertions, 4 deletions
diff --git a/sysdeps/powerpc/bits/atomic.h b/sysdeps/powerpc/bits/atomic.h
index 31f27e9..d71f64e 100644
--- a/sysdeps/powerpc/bits/atomic.h
+++ b/sysdeps/powerpc/bits/atomic.h
@@ -70,6 +70,13 @@ typedef uintmax_t uatomic_max_t;
# endif
#endif
+#ifndef MUTEX_HINT_ACQ
+# define MUTEX_HINT_ACQ
+#endif
+#ifndef MUTEX_HINT_REL
+# define MUTEX_HINT_REL
+#endif
+
#define atomic_full_barrier() __asm ("sync" ::: "memory")
#define atomic_write_barrier() __asm ("eieio" ::: "memory")
@@ -78,7 +85,7 @@ typedef uintmax_t uatomic_max_t;
__typeof (*(mem)) __tmp; \
__typeof (mem) __memp = (mem); \
__asm __volatile ( \
- "1: lwarx %0,0,%1\n" \
+ "1: lwarx %0,0,%1" MUTEX_HINT_ACQ "\n" \
" cmpw %0,%2\n" \
" bne 2f\n" \
" stwcx. %3,0,%1\n" \
@@ -95,7 +102,7 @@ typedef uintmax_t uatomic_max_t;
__typeof (*(mem)) __tmp; \
__typeof (mem) __memp = (mem); \
__asm __volatile (__ARCH_REL_INSTR "\n" \
- "1: lwarx %0,0,%1\n" \
+ "1: lwarx %0,0,%1" MUTEX_HINT_REL "\n" \
" cmpw %0,%2\n" \
" bne 2f\n" \
" stwcx. %3,0,%1\n" \
@@ -111,7 +118,7 @@ typedef uintmax_t uatomic_max_t;
({ \
__typeof (*mem) __val; \
__asm __volatile ( \
- "1: lwarx %0,0,%2\n" \
+ "1: lwarx %0,0,%2" MUTEX_HINT_ACQ "\n" \
" stwcx. %3,0,%2\n" \
" bne- 1b\n" \
" " __ARCH_ACQ_INSTR \
@@ -125,7 +132,7 @@ typedef uintmax_t uatomic_max_t;
({ \
__typeof (*mem) __val; \
__asm __volatile (__ARCH_REL_INSTR "\n" \
- "1: lwarx %0,0,%2\n" \
+ "1: lwarx %0,0,%2" MUTEX_HINT_REL "\n" \
" stwcx. %3,0,%2\n" \
" bne- 1b" \
: "=&r" (__val), "=m" (*mem) \