#ifndef __ARCH_SPARC64_PERCPU__ #define __ARCH_SPARC64_PERCPU__ #include <linux/compiler.h> #ifdef CONFIG_SMP 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)) /* 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)) /* A macro to avoid #include hell... */ #define percpu_modcopy(pcpudst, src, size) \ do { \ unsigned int __i; \ for (__i = 0; __i < NR_CPUS; __i++) \ if (cpu_possible(__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 #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__ */