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| author | travis@sgi.com <travis@sgi.com> | 2008-01-30 23:27:58 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 23:27:58 +0100 |
| commit | 05991bef104051d47e2160ee9499186aff7da5ad (patch) | |
| tree | ff6b00b2d407acd0b743d4272f4577e97e09c823 | |
| parent | 3afc620229ccc8214ef96fd0e7db26d79f788167 (diff) | |
| download | linux-3.10-05991bef104051d47e2160ee9499186aff7da5ad.tar.gz linux-3.10-05991bef104051d47e2160ee9499186aff7da5ad.tar.bz2 linux-3.10-05991bef104051d47e2160ee9499186aff7da5ad.zip | |
ia64: use generic percpu
ia64 has a special processor specific mapping that can be used to locate the
offset for the current per cpu area.
Cc: linux-ia64@vger.kernel.org
Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | include/asm-ia64/percpu.h | 24 | ||||
| -rw-r--r-- | include/linux/percpu.h | 4 |
2 files changed, 7 insertions, 21 deletions
diff --git a/include/asm-ia64/percpu.h b/include/asm-ia64/percpu.h index 7ef684220cf..26404b77f00 100644 --- a/include/asm-ia64/percpu.h +++ b/include/asm-ia64/percpu.h @@ -19,29 +19,14 @@ # define PER_CPU_ATTRIBUTES __attribute__((__model__ (__small__))) #endif -#define DECLARE_PER_CPU(type, name) \ - extern PER_CPU_ATTRIBUTES __typeof__(type) per_cpu__##name - #ifdef CONFIG_SMP -extern unsigned long __per_cpu_offset[NR_CPUS]; -#define per_cpu_offset(x) (__per_cpu_offset[x]) - -/* Equal to __per_cpu_offset[smp_processor_id()], but faster to access: */ -DECLARE_PER_CPU(unsigned long, local_per_cpu_offset); - -#define per_cpu(var, cpu) (*RELOC_HIDE(&per_cpu__##var, __per_cpu_offset[cpu])) -#define __get_cpu_var(var) (*RELOC_HIDE(&per_cpu__##var, __ia64_per_cpu_var(local_per_cpu_offset))) -#define __raw_get_cpu_var(var) (*RELOC_HIDE(&per_cpu__##var, __ia64_per_cpu_var(local_per_cpu_offset))) +#define __my_cpu_offset __ia64_per_cpu_var(local_per_cpu_offset) -extern void setup_per_cpu_areas (void); extern void *per_cpu_init(void); #else /* ! SMP */ -#define per_cpu(var, cpu) (*((void)(cpu), &per_cpu__##var)) -#define __get_cpu_var(var) per_cpu__##var -#define __raw_get_cpu_var(var) per_cpu__##var #define per_cpu_init() (__phys_per_cpu_start) #endif /* SMP */ @@ -52,7 +37,12 @@ extern void *per_cpu_init(void); * On the positive side, using __ia64_per_cpu_var() instead of __get_cpu_var() is slightly * more efficient. */ -#define __ia64_per_cpu_var(var) (per_cpu__##var) +#define __ia64_per_cpu_var(var) per_cpu__##var + +#include <asm-generic/percpu.h> + +/* Equal to __per_cpu_offset[smp_processor_id()], but faster to access: */ +DECLARE_PER_CPU(unsigned long, local_per_cpu_offset); #endif /* !__ASSEMBLY__ */ diff --git a/include/linux/percpu.h b/include/linux/percpu.h index 00412bb494c..50faa0ea28e 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -9,10 +9,6 @@ #include <asm/percpu.h> -#ifndef PER_CPU_ATTRIBUTES -#define PER_CPU_ATTRIBUTES -#endif - #ifdef CONFIG_SMP #define DEFINE_PER_CPU(type, name) \ __attribute__((__section__(".data.percpu"))) \ |