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 @@ | |||
1 | #ifndef _ASM_X8664_PERCPU_H_ | ||
2 | #define _ASM_X8664_PERCPU_H_ | ||
3 | #include <linux/compiler.h> | ||
4 | |||
5 | /* Same as asm-generic/percpu.h, except that we store the per cpu offset | ||
6 | in the PDA. Longer term the PDA and every per cpu variable | ||
7 | should be just put into a single section and referenced directly | ||
8 | from %gs */ | ||
9 | |||
10 | #ifdef CONFIG_SMP | ||
11 | |||
12 | #include <asm/pda.h> | ||
13 | |||
14 | #define __per_cpu_offset(cpu) (cpu_pda(cpu)->data_offset) | ||
15 | #define __my_cpu_offset() read_pda(data_offset) | ||
16 | |||
17 | #define per_cpu_offset(x) (__per_cpu_offset(x)) | ||
18 | |||
19 | /* Separate out the type, so (int[3], foo) works. */ | ||
20 | #define DEFINE_PER_CPU(type, name) \ | ||
21 | __attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name | ||
22 | |||
23 | #define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ | ||
24 | __attribute__((__section__(".data.percpu.shared_aligned"))) \ | ||
25 | __typeof__(type) per_cpu__##name \ | ||
26 | ____cacheline_internodealigned_in_smp | ||
27 | |||
28 | /* var is in discarded region: offset to particular copy we want */ | ||
29 | #define per_cpu(var, cpu) (*({ \ | ||
30 | extern int simple_identifier_##var(void); \ | ||
31 | RELOC_HIDE(&per_cpu__##var, __per_cpu_offset(cpu)); })) | ||
32 | #define __get_cpu_var(var) (*({ \ | ||
33 | extern int simple_identifier_##var(void); \ | ||
34 | RELOC_HIDE(&per_cpu__##var, __my_cpu_offset()); })) | ||
35 | #define __raw_get_cpu_var(var) (*({ \ | ||
36 | extern int simple_identifier_##var(void); \ | ||
37 | RELOC_HIDE(&per_cpu__##var, __my_cpu_offset()); })) | ||
38 | |||
39 | /* A macro to avoid #include hell... */ | ||
40 | #define percpu_modcopy(pcpudst, src, size) \ | ||
41 | do { \ | ||
42 | unsigned int __i; \ | ||
43 | for_each_possible_cpu(__i) \ | ||
44 | memcpy((pcpudst)+__per_cpu_offset(__i), \ | ||
45 | (src), (size)); \ | ||
46 | } while (0) | ||
47 | |||
48 | extern void setup_per_cpu_areas(void); | ||
49 | |||
50 | #else /* ! SMP */ | ||
51 | |||
52 | #define DEFINE_PER_CPU(type, name) \ | ||
53 | __typeof__(type) per_cpu__##name | ||
54 | #define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ | ||
55 | DEFINE_PER_CPU(type, name) | ||
56 | |||
57 | #define per_cpu(var, cpu) (*((void)(cpu), &per_cpu__##var)) | ||
58 | #define __get_cpu_var(var) per_cpu__##var | ||
59 | #define __raw_get_cpu_var(var) per_cpu__##var | ||
60 | |||
61 | #endif /* SMP */ | ||
62 | |||
63 | #define DECLARE_PER_CPU(type, name) extern __typeof__(type) per_cpu__##name | ||
64 | |||
65 | #define EXPORT_PER_CPU_SYMBOL(var) EXPORT_SYMBOL(per_cpu__##var) | ||
66 | #define EXPORT_PER_CPU_SYMBOL_GPL(var) EXPORT_SYMBOL_GPL(per_cpu__##var) | ||
67 | |||
68 | #endif /* _ASM_X8664_PERCPU_H_ */ | ||