diff options
Diffstat (limited to 'include/asm-x86_64/percpu.h')
-rw-r--r-- | include/asm-x86_64/percpu.h | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/include/asm-x86_64/percpu.h b/include/asm-x86_64/percpu.h deleted file mode 100644 index 5abd48270101..000000000000 --- a/include/asm-x86_64/percpu.h +++ /dev/null @@ -1,68 +0,0 @@ -#ifndef _ASM_X8664_PERCPU_H_ -#define _ASM_X8664_PERCPU_H_ -#include <linux/compiler.h> - -/* Same as asm-generic/percpu.h, except that we store the per cpu offset - in the PDA. Longer term the PDA and every per cpu variable - should be just put into a single section and referenced directly - from %gs */ - -#ifdef CONFIG_SMP - -#include <asm/pda.h> - -#define __per_cpu_offset(cpu) (cpu_pda(cpu)->data_offset) -#define __my_cpu_offset() read_pda(data_offset) - -#define per_cpu_offset(x) (__per_cpu_offset(x)) - -/* Separate out the type, so (int[3], foo) works. */ -#define DEFINE_PER_CPU(type, name) \ - __attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name - -#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ - __attribute__((__section__(".data.percpu.shared_aligned"))) \ - __typeof__(type) per_cpu__##name \ - ____cacheline_internodealigned_in_smp - -/* var is in discarded region: offset to particular copy we want */ -#define per_cpu(var, cpu) (*({ \ - extern int simple_identifier_##var(void); \ - RELOC_HIDE(&per_cpu__##var, __per_cpu_offset(cpu)); })) -#define __get_cpu_var(var) (*({ \ - extern int simple_identifier_##var(void); \ - RELOC_HIDE(&per_cpu__##var, __my_cpu_offset()); })) -#define __raw_get_cpu_var(var) (*({ \ - extern int simple_identifier_##var(void); \ - RELOC_HIDE(&per_cpu__##var, __my_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) - -extern void setup_per_cpu_areas(void); - -#else /* ! SMP */ - -#define DEFINE_PER_CPU(type, name) \ - __typeof__(type) per_cpu__##name -#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ - DEFINE_PER_CPU(type, name) - -#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 - -#define EXPORT_PER_CPU_SYMBOL(var) EXPORT_SYMBOL(per_cpu__##var) -#define EXPORT_PER_CPU_SYMBOL_GPL(var) EXPORT_SYMBOL_GPL(per_cpu__##var) - -#endif /* _ASM_X8664_PERCPU_H_ */ |