diff options
| author | David Howells <dhowells@redhat.com> | 2012-03-28 18:30:03 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2012-03-28 18:30:03 +0100 |
| commit | d550bbd40c0e10aefa05103dadbe0ae42e683707 (patch) | |
| tree | c1f32662f605f2b87c73901fbf66d12b2ca69b04 /arch/sparc/include/asm/barrier_32.h | |
| parent | e839ca528718e68cad32a307dc9aabf01ef3eb05 (diff) | |
Disintegrate asm/system.h for Sparc
Disintegrate asm/system.h for Sparc.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: sparclinux@vger.kernel.org
Diffstat (limited to 'arch/sparc/include/asm/barrier_32.h')
| -rw-r--r-- | arch/sparc/include/asm/barrier_32.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/barrier_32.h b/arch/sparc/include/asm/barrier_32.h new file mode 100644 index 000000000000..c1b76654ee76 --- /dev/null +++ b/arch/sparc/include/asm/barrier_32.h @@ -0,0 +1,15 @@ +#ifndef __SPARC_BARRIER_H +#define __SPARC_BARRIER_H + +/* XXX Change this if we ever use a PSO mode kernel. */ +#define mb() __asm__ __volatile__ ("" : : : "memory") +#define rmb() mb() +#define wmb() mb() +#define read_barrier_depends() do { } while(0) +#define set_mb(__var, __value) do { __var = __value; mb(); } while(0) +#define smp_mb() __asm__ __volatile__("":::"memory") +#define smp_rmb() __asm__ __volatile__("":::"memory") +#define smp_wmb() __asm__ __volatile__("":::"memory") +#define smp_read_barrier_depends() do { } while(0) + +#endif /* !(__SPARC_BARRIER_H) */ |