X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=include%2Fasm-s390%2Fpercpu.h;h=408d60b4f75bc779a5bf356d13c1624ba209ce25;hb=e1f9a464026011b3f7d0f7b6dfab3e562e870a46;hp=28b3517e787cd141d8c778e37cff68f143b6bf53;hpb=9b4f2e9576658c4e52d95dc8d309f51b2e2db096;p=mv-sheeva.git diff --git a/include/asm-s390/percpu.h b/include/asm-s390/percpu.h index 28b3517e787..408d60b4f75 100644 --- a/include/asm-s390/percpu.h +++ b/include/asm-s390/percpu.h @@ -4,8 +4,6 @@ #include #include -#define __GENERIC_PER_CPU - /* * s390 uses its own implementation for per cpu data, the offset of * the cpu local data area is cached in the cpu's lowcore memory. @@ -15,58 +13,25 @@ */ #if defined(__s390x__) && defined(MODULE) -#define __reloc_hide(var,offset) \ - (*({ unsigned long *__ptr; \ - asm ( "larl %0,per_cpu__"#var"@GOTENT" \ - : "=a" (__ptr) : "X" (per_cpu__##var) ); \ - (typeof(&per_cpu__##var))((*__ptr) + (offset)); })) +#define SHIFT_PERCPU_PTR(ptr,offset) (({ \ + extern int simple_identifier_##var(void); \ + unsigned long *__ptr; \ + asm ( "larl %0, %1@GOTENT" \ + : "=a" (__ptr) : "X" (ptr) ); \ + (typeof(ptr))((*__ptr) + (offset)); })) #else -#define __reloc_hide(var, offset) \ - (*({ unsigned long __ptr; \ - asm ( "" : "=a" (__ptr) : "0" (&per_cpu__##var) ); \ - (typeof(&per_cpu__##var)) (__ptr + (offset)); })) +#define SHIFT_PERCPU_PTR(ptr, offset) (({ \ + extern int simple_identifier_##var(void); \ + unsigned long __ptr; \ + asm ( "" : "=a" (__ptr) : "0" (ptr) ); \ + (typeof(ptr)) (__ptr + (offset)); })) #endif -#ifdef CONFIG_SMP - -extern unsigned long __per_cpu_offset[NR_CPUS]; - -/* 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 __get_cpu_var(var) __reloc_hide(var,S390_lowcore.percpu_offset) -#define __raw_get_cpu_var(var) __reloc_hide(var,S390_lowcore.percpu_offset) -#define per_cpu(var,cpu) __reloc_hide(var,__per_cpu_offset[cpu]) -#define per_cpu_offset(x) (__per_cpu_offset[x]) - -/* 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 __get_cpu_var(var) __reloc_hide(var,0) -#define __raw_get_cpu_var(var) __reloc_hide(var,0) -#define per_cpu(var,cpu) __reloc_hide(var,0) - -#endif /* SMP */ - -#define DECLARE_PER_CPU(type, name) extern __typeof__(type) per_cpu__##name +#define __my_cpu_offset S390_lowcore.percpu_offset -#define EXPORT_PER_CPU_SYMBOL(var) EXPORT_SYMBOL(per_cpu__##var) -#define EXPORT_PER_CPU_SYMBOL_GPL(var) EXPORT_SYMBOL_GPL(per_cpu__##var) +#include #endif /* __ARCH_S390_PERCPU__ */