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authortravis@sgi.com <travis@sgi.com>2008-01-30 23:27:58 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 23:27:58 +0100
commit3afc620229ccc8214ef96fd0e7db26d79f788167 (patch)
tree0e41242b3d13f071f5aec29d2da074a1067efa59 /include/asm-sparc64
parent988c388ad48f790253850e369dd3e6fdf44ef603 (diff)
SPARC64: use generic percpu
Sparc64 has a way of providing the base address for the per cpu area of the currently executing processor in a global register. Sparc64 also provides a way to calculate the address of a per cpu area from a base address instead of performing an array lookup. Cc: David Miller <davem@davemloft.net> Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-sparc64')
-rw-r--r--include/asm-sparc64/percpu.h22
1 files changed, 3 insertions, 19 deletions
diff --git a/include/asm-sparc64/percpu.h b/include/asm-sparc64/percpu.h
index c7e52decba98..bee64593023e 100644
--- a/include/asm-sparc64/percpu.h
+++ b/include/asm-sparc64/percpu.h
@@ -7,7 +7,6 @@ register unsigned long __local_per_cpu_offset asm("g5");
#ifdef CONFIG_SMP
-#define setup_per_cpu_areas() do { } while (0)
extern void real_setup_per_cpu_areas(void);
extern unsigned long __per_cpu_base;
@@ -16,29 +15,14 @@ extern unsigned long __per_cpu_shift;
(__per_cpu_base + ((unsigned long)(__cpu) << __per_cpu_shift))
#define per_cpu_offset(x) (__per_cpu_offset(x))
-/* var is in discarded region: offset to particular copy we want */
-#define per_cpu(var, cpu) (*RELOC_HIDE(&per_cpu__##var, __per_cpu_offset(cpu)))
-#define __get_cpu_var(var) (*RELOC_HIDE(&per_cpu__##var, __local_per_cpu_offset))
-#define __raw_get_cpu_var(var) (*RELOC_HIDE(&per_cpu__##var, __local_per_cpu_offset))
-
-/* A macro to avoid #include hell... */
-#define percpu_modcopy(pcpudst, src, size) \
-do { \
- unsigned int __i; \
- for_each_possible_cpu(__i) \
- memcpy((pcpudst)+__per_cpu_offset(__i), \
- (src), (size)); \
-} while (0)
+#define __my_cpu_offset __local_per_cpu_offset
+
#else /* ! SMP */
#define real_setup_per_cpu_areas() do { } while (0)
-#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
-
#endif /* SMP */
-#define DECLARE_PER_CPU(type, name) extern __typeof__(type) per_cpu__##name
+#include <asm-generic/percpu.h>
#endif /* __ARCH_SPARC64_PERCPU__ */