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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-s390/local.h | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-s390/local.h')
-rw-r--r-- | include/asm-s390/local.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/include/asm-s390/local.h b/include/asm-s390/local.h new file mode 100644 index 000000000000..cf8189009c30 --- /dev/null +++ b/include/asm-s390/local.h @@ -0,0 +1,59 @@ +#ifndef _ASM_LOCAL_H +#define _ASM_LOCAL_H + +#include <linux/config.h> +#include <linux/percpu.h> +#include <asm/atomic.h> + +#ifndef __s390x__ + +typedef atomic_t local_t; + +#define LOCAL_INIT(i) ATOMIC_INIT(i) +#define local_read(v) atomic_read(v) +#define local_set(v,i) atomic_set(v,i) + +#define local_inc(v) atomic_inc(v) +#define local_dec(v) atomic_dec(v) +#define local_add(i, v) atomic_add(i, v) +#define local_sub(i, v) atomic_sub(i, v) + +#else + +typedef atomic64_t local_t; + +#define LOCAL_INIT(i) ATOMIC64_INIT(i) +#define local_read(v) atomic64_read(v) +#define local_set(v,i) atomic64_set(v,i) + +#define local_inc(v) atomic64_inc(v) +#define local_dec(v) atomic64_dec(v) +#define local_add(i, v) atomic64_add(i, v) +#define local_sub(i, v) atomic64_sub(i, v) + +#endif + +#define __local_inc(v) ((v)->counter++) +#define __local_dec(v) ((v)->counter--) +#define __local_add(i,v) ((v)->counter+=(i)) +#define __local_sub(i,v) ((v)->counter-=(i)) + +/* + * Use these for per-cpu local_t variables: on some archs they are + * much more efficient than these naive implementations. Note they take + * a variable, not an address. + */ +#define cpu_local_read(v) local_read(&__get_cpu_var(v)) +#define cpu_local_set(v, i) local_set(&__get_cpu_var(v), (i)) + +#define cpu_local_inc(v) local_inc(&__get_cpu_var(v)) +#define cpu_local_dec(v) local_dec(&__get_cpu_var(v)) +#define cpu_local_add(i, v) local_add((i), &__get_cpu_var(v)) +#define cpu_local_sub(i, v) local_sub((i), &__get_cpu_var(v)) + +#define __cpu_local_inc(v) __local_inc(&__get_cpu_var(v)) +#define __cpu_local_dec(v) __local_dec(&__get_cpu_var(v)) +#define __cpu_local_add(i, v) __local_add((i), &__get_cpu_var(v)) +#define __cpu_local_sub(i, v) __local_sub((i), &__get_cpu_var(v)) + +#endif /* _ASM_LOCAL_H */ |