62 lines
1.9 KiB
C
62 lines
1.9 KiB
C
#ifndef __ARCH_SPARC64_PERCPU__
|
|
#define __ARCH_SPARC64_PERCPU__
|
|
|
|
#include <linux/compiler.h>
|
|
|
|
#ifdef CONFIG_SMP
|
|
|
|
#ifdef CONFIG_MODULES
|
|
# define PERCPU_MODULE_RESERVE 8192
|
|
#else
|
|
# define PERCPU_MODULE_RESERVE 0
|
|
#endif
|
|
|
|
#define PERCPU_ENOUGH_ROOM \
|
|
(ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES) + \
|
|
PERCPU_MODULE_RESERVE)
|
|
|
|
extern void 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))
|
|
#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
|
|
|
|
register unsigned long __local_per_cpu_offset asm("g5");
|
|
|
|
/* 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)
|
|
#else /* ! SMP */
|
|
|
|
#define DEFINE_PER_CPU(type, name) \
|
|
__typeof__(type) per_cpu__##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 /* __ARCH_SPARC64_PERCPU__ */
|