]>
Commit | Line | Data |
---|---|---|
7a0268fa AB |
1 | #ifndef _ASM_POWERPC_PERCPU_H_ |
2 | #define _ASM_POWERPC_PERCPU_H_ | |
3 | #ifdef __powerpc64__ | |
4 | #include <linux/compiler.h> | |
5 | ||
6 | /* | |
7 | * Same as asm-generic/percpu.h, except that we store the per cpu offset | |
8 | * in the paca. Based on the x86-64 implementation. | |
9 | */ | |
10 | ||
11 | #ifdef CONFIG_SMP | |
12 | ||
13 | #include <asm/paca.h> | |
14 | ||
15 | #define __per_cpu_offset(cpu) (paca[cpu].data_offset) | |
16 | #define __my_cpu_offset() get_paca()->data_offset | |
a875a69f | 17 | #define per_cpu_offset(x) (__per_cpu_offset(x)) |
7a0268fa | 18 | |
7a0268fa AB |
19 | /* var is in discarded region: offset to particular copy we want */ |
20 | #define per_cpu(var, cpu) (*RELOC_HIDE(&per_cpu__##var, __per_cpu_offset(cpu))) | |
21 | #define __get_cpu_var(var) (*RELOC_HIDE(&per_cpu__##var, __my_cpu_offset())) | |
048c8bc9 | 22 | #define __raw_get_cpu_var(var) (*RELOC_HIDE(&per_cpu__##var, local_paca->data_offset)) |
7a0268fa AB |
23 | |
24 | /* A macro to avoid #include hell... */ | |
25 | #define percpu_modcopy(pcpudst, src, size) \ | |
26 | do { \ | |
27 | unsigned int __i; \ | |
0e551954 | 28 | for_each_possible_cpu(__i) \ |
394e3902 AM |
29 | memcpy((pcpudst)+__per_cpu_offset(__i), \ |
30 | (src), (size)); \ | |
7a0268fa AB |
31 | } while (0) |
32 | ||
33 | extern void setup_per_cpu_areas(void); | |
34 | ||
35 | #else /* ! SMP */ | |
36 | ||
7a0268fa AB |
37 | #define per_cpu(var, cpu) (*((void)(cpu), &per_cpu__##var)) |
38 | #define __get_cpu_var(var) per_cpu__##var | |
bfe5d834 | 39 | #define __raw_get_cpu_var(var) per_cpu__##var |
7a0268fa AB |
40 | |
41 | #endif /* SMP */ | |
42 | ||
43 | #define DECLARE_PER_CPU(type, name) extern __typeof__(type) per_cpu__##name | |
44 | ||
7a0268fa | 45 | #else |
6f9aa727 | 46 | #include <asm-generic/percpu.h> |
7a0268fa AB |
47 | #endif |
48 | ||
49 | #endif /* _ASM_POWERPC_PERCPU_H_ */ |