diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-ia64/local.h |
Linux-2.6.12-rc2v2.6.12-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-ia64/local.h')
-rw-r--r-- | include/asm-ia64/local.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/include/asm-ia64/local.h b/include/asm-ia64/local.h new file mode 100644 index 00000000000..1dbd584ad85 --- /dev/null +++ b/include/asm-ia64/local.h @@ -0,0 +1,50 @@ +#ifndef _ASM_IA64_LOCAL_H +#define _ASM_IA64_LOCAL_H + +/* + * Copyright (C) 2003 Hewlett-Packard Co + * David Mosberger-Tang <davidm@hpl.hp.com> + */ + +#include <linux/percpu.h> + +typedef struct { + atomic64_t val; +} local_t; + +#define LOCAL_INIT(i) ((local_t) { { (i) } }) +#define local_read(l) atomic64_read(&(l)->val) +#define local_set(l, i) atomic64_set(&(l)->val, i) +#define local_inc(l) atomic64_inc(&(l)->val) +#define local_dec(l) atomic64_dec(&(l)->val) +#define local_add(l) atomic64_add(&(l)->val) +#define local_sub(l) atomic64_sub(&(l)->val) + +/* Non-atomic variants, i.e., preemption disabled and won't be touched in interrupt, etc. */ + +#define __local_inc(l) (++(l)->val.counter) +#define __local_dec(l) (--(l)->val.counter) +#define __local_add(i,l) ((l)->val.counter += (i)) +#define __local_sub(i,l) ((l)->val.counter -= (i)) + +/* + * Use these for per-cpu local_t variables. Note they take a variable (eg. mystruct.foo), + * not an address. + */ +#define cpu_local_read(v) local_read(&__ia64_per_cpu_var(v)) +#define cpu_local_set(v, i) local_set(&__ia64_per_cpu_var(v), (i)) +#define cpu_local_inc(v) local_inc(&__ia64_per_cpu_var(v)) +#define cpu_local_dec(v) local_dec(&__ia64_per_cpu_var(v)) +#define cpu_local_add(i, v) local_add((i), &__ia64_per_cpu_var(v)) +#define cpu_local_sub(i, v) local_sub((i), &__ia64_per_cpu_var(v)) + +/* + * Non-atomic increments, i.e., preemption disabled and won't be touched in interrupt, + * etc. + */ +#define __cpu_local_inc(v) __local_inc(&__ia64_per_cpu_var(v)) +#define __cpu_local_dec(v) __local_dec(&__ia64_per_cpu_var(v)) +#define __cpu_local_add(i, v) __local_add((i), &__ia64_per_cpu_var(v)) +#define __cpu_local_sub(i, v) __local_sub((i), &__ia64_per_cpu_var(v)) + +#endif /* _ASM_IA64_LOCAL_H */ |