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| author | David S. Miller <davem@davemloft.net> | 2009-04-01 12:47:10 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-06-16 15:56:11 +0400 |
| commit | 5a5488d3bb9a23d9884572e5d85dfeefe8749d3d (patch) | |
| tree | afa8db75cdf771257cd5541ed80a606df60f9cf8 /arch/sparc/include/asm/percpu_64.h | |
| parent | 19f0fa3fb3499d8c5fb861933959f546d05fc202 (diff) | |
| download | linux-5a5488d3bb9a23d9884572e5d85dfeefe8749d3d.tar.xz | |
sparc64: Store per-cpu offset in trap_block[]
Surprisingly this actually makes LOAD_PER_CPU_BASE() a little
more efficient.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/include/asm/percpu_64.h')
| -rw-r--r-- | arch/sparc/include/asm/percpu_64.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/sparc/include/asm/percpu_64.h b/arch/sparc/include/asm/percpu_64.h index bee64593023e..c0ab102d11f6 100644 --- a/arch/sparc/include/asm/percpu_64.h +++ b/arch/sparc/include/asm/percpu_64.h @@ -7,12 +7,12 @@ register unsigned long __local_per_cpu_offset asm("g5"); #ifdef CONFIG_SMP +#include <asm/trap_block.h> + extern void real_setup_per_cpu_areas(void); -extern unsigned long __per_cpu_base; -extern unsigned long __per_cpu_shift; #define __per_cpu_offset(__cpu) \ - (__per_cpu_base + ((unsigned long)(__cpu) << __per_cpu_shift)) + (trap_block[(__cpu)].__per_cpu_base) #define per_cpu_offset(x) (__per_cpu_offset(x)) #define __my_cpu_offset __local_per_cpu_offset |