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3064. [bug] powerpc: add sync instructions to the end of atomic

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operations. [RT #23469]
This commit is contained in:
Mark Andrews 2011-03-07 00:17:08 +00:00
parent 2b43274572
commit fea04b0ffe
2 changed files with 10 additions and 4 deletions
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3
CHANGES
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@ -1,3 +1,6 @@
3064. [bug] powerpc: add sync instructions to the end of atomic
operations. [RT #23469]
3063. [contrib] More verbose error reporting from DLZ LDAP. [RT #23402]
3062. [func] Made several changes to enhance human readability

11
lib/isc/powerpc/include/isc/atomic.h
View File

@ -14,7 +14,7 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: atomic.h,v 1.8 2009/10/14 23:47:51 tbox Exp $ */
/* $Id: atomic.h,v 1.9 2011/03/07 00:17:08 marka Exp $ */
#ifndef ISC_ATOMIC_H
#define ISC_ATOMIC_H 1
@ -117,7 +117,8 @@ isc_atomic_xadd(isc_int32_t *p, isc_int32_t val) {
"mr %0, 6\n"
"add 6, 6, %2\n"
"stwcx. 6, 0, %1\n"
"bne- 1b"
"bne- 1b\n"
"sync"
#endif
: "=&r"(orig)
: "r"(p), "r"(val)
@ -141,7 +142,8 @@ isc_atomic_store(void *p, isc_int32_t val) {
"lwarx 6, 0, %0\n"
"lwz 6, %1\n"
"stwcx. 6, 0, %0\n"
"bne- 1b"
"bne- 1b\n"
"sync"
#endif
:
: "r"(p), "m"(val)
@ -173,7 +175,8 @@ isc_atomic_cmpxchg(isc_int32_t *p, isc_int32_t cmpval, isc_int32_t val) {
"mr 6, %3\n"
"stwcx. 6, 0, %1\n"
"bne- 1b\n"
"2:"
"2:\n"
"sync"
#endif
: "=&r" (orig)
: "r"(p), "r"(cmpval), "r"(val)