* [patch 05/28] Add cmpxchg64 and cmpxchg64_local to powerpc [not found] <20071031223710.099558229@polymtl.ca> @ 2007-10-31 22:37 ` Mathieu Desnoyers 0 siblings, 0 replies; 2+ messages in thread From: Mathieu Desnoyers @ 2007-10-31 22:37 UTC (permalink / raw) To: akpm, linux-kernel; +Cc: Paul Mackerras, Mathieu Desnoyers, linuxppc-dev Make sure that at least cmpxchg64_local is available on all architectures to use for unsigned long long values. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: Paul Mackerras <paulus@samba.org> CC: linuxppc-dev@ozlabs.org --- include/asm-powerpc/system.h | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) Index: linux-2.6-lttng/include/asm-powerpc/system.h =================================================================== --- linux-2.6-lttng.orig/include/asm-powerpc/system.h 2007-10-31 17:32:44.000000000 -0400 +++ linux-2.6-lttng/include/asm-powerpc/system.h 2007-10-31 17:56:25.000000000 -0400 @@ -461,7 +461,7 @@ __cmpxchg_local(volatile void *ptr, unsi return old; } -#define cmpxchg(ptr,o,n) \ +#define cmpxchg(ptr, o, n) \ ({ \ __typeof__(*(ptr)) _o_ = (o); \ __typeof__(*(ptr)) _n_ = (n); \ @@ -470,7 +470,7 @@ __cmpxchg_local(volatile void *ptr, unsi }) -#define cmpxchg_local(ptr,o,n) \ +#define cmpxchg_local(ptr, o, n) \ ({ \ __typeof__(*(ptr)) _o_ = (o); \ __typeof__(*(ptr)) _n_ = (n); \ @@ -490,6 +490,20 @@ __cmpxchg_local(volatile void *ptr, unsi */ #define NET_IP_ALIGN 0 #define NET_SKB_PAD L1_CACHE_BYTES + +#define cmpxchg64(ptr, o, n) \ + ({ \ + BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ + cmpxchg((ptr), (o), (n)); \ + }) +#define cmpxchg64_local(ptr, o, n) \ + ({ \ + BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ + cmpxchg_local((ptr), (o), (n)); \ + }) +#else +#include <asm-generic/cmpxchg-local.h> +#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) #endif #define arch_align_stack(x) (x) -- Mathieu Desnoyers Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68 ^ permalink raw reply [flat|nested] 2+ messages in thread
[parent not found: <20071030191557.947156623@polymtl.ca>]
* [patch 05/28] Add cmpxchg64 and cmpxchg64_local to powerpc [not found] <20071030191557.947156623@polymtl.ca> @ 2007-10-30 19:16 ` Mathieu Desnoyers 0 siblings, 0 replies; 2+ messages in thread From: Mathieu Desnoyers @ 2007-10-30 19:16 UTC (permalink / raw) To: akpm, linux-kernel, matthew, linux-arch, penberg, linux-mm, Christoph Lameter Cc: Paul Mackerras, Mathieu Desnoyers, linuxppc-dev Make sure that at least cmpxchg64_local is available on all architectures to use for unsigned long long values. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: Paul Mackerras <paulus@samba.org> CC: linuxppc-dev@ozlabs.org --- include/asm-powerpc/system.h | 6 ++++++ 1 file changed, 6 insertions(+) Index: linux-2.6-lttng/include/asm-powerpc/system.h =================================================================== --- linux-2.6-lttng.orig/include/asm-powerpc/system.h 2007-09-24 10:50:11.000000000 -0400 +++ linux-2.6-lttng/include/asm-powerpc/system.h 2007-09-24 11:01:04.000000000 -0400 @@ -488,6 +488,12 @@ __cmpxchg_local(volatile void *ptr, unsi */ #define NET_IP_ALIGN 0 #define NET_SKB_PAD L1_CACHE_BYTES + +#define cmpxchg64 cmpxchg +#define cmpxchg64_local cmpxchg_local +#else +#include <asm-generic/cmpxchg-local.h> +#define cmpxchg64_local(ptr,o,n) __cmpxchg64_local_generic((ptr), (o), (n)) #endif #define arch_align_stack(x) (x) -- Mathieu Desnoyers Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68 ^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2007-10-31 22:42 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
[not found] <20071031223710.099558229@polymtl.ca>
2007-10-31 22:37 ` [patch 05/28] Add cmpxchg64 and cmpxchg64_local to powerpc Mathieu Desnoyers
[not found] <20071030191557.947156623@polymtl.ca>
2007-10-30 19:16 ` Mathieu Desnoyers
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for NNTP newsgroup(s).