X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=ltt-usertrace%2Fltt%2Fltt-usertrace-ppc.h;h=002142e40a47d912363964094234ea89d106fe58;hb=60009e261013c6bcbdbaa624eaa4c5225d366aef;hp=417eca016fdaf698897ebfd69a3f0061e9c709d5;hpb=10212e41b398373b2fc12b007854ca514fd15f29;p=lttv.git diff --git a/ltt-usertrace/ltt/ltt-usertrace-ppc.h b/ltt-usertrace/ltt/ltt-usertrace-ppc.h index 417eca01..002142e4 100644 --- a/ltt-usertrace/ltt/ltt-usertrace-ppc.h +++ b/ltt-usertrace/ltt/ltt-usertrace-ppc.h @@ -6,109 +6,13 @@ #ifdef __powerpc64__ #include "ltt/atomic-ppc64.h" +#include "ltt/system-ppc64.h" #else +#include "ltt/ppc_asm-ppc.h" #include "ltt/atomic-ppc.h" +#include "ltt/system-ppc.h" #endif -static __inline__ unsigned long -xchg_u32(volatile void *p, unsigned long val) -{ - unsigned long prev; - - __asm__ __volatile__ ("\n\ -1: lwarx %0,0,%2 \n" -" stwcx. %3,0,%2 \n\ - bne- 1b" - : "=&r" (prev), "=m" (*(volatile unsigned long *)p) - : "r" (p), "r" (val), "m" (*(volatile unsigned long *)p) - : "cc", "memory"); - - return prev; -} - -/* - * This function doesn't exist, so you'll get a linker error - * if something tries to do an invalid xchg(). - */ -extern void __xchg_called_with_bad_pointer(void); - -#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) -#define tas(ptr) (xchg((ptr),1)) - -static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size) -{ - switch (size) { - case 4: - return (unsigned long) xchg_u32(ptr, x); -#if 0 /* xchg_u64 doesn't exist on 32-bit PPC */ - case 8: - return (unsigned long) xchg_u64(ptr, x); -#endif /* 0 */ - } - __xchg_called_with_bad_pointer(); - return x; - - -} - -extern inline void * xchg_ptr(void * m, void * val) -{ - return (void *) xchg_u32(m, (unsigned long) val); -} - - -#define __HAVE_ARCH_CMPXCHG 1 - -static __inline__ unsigned long -__cmpxchg_u32(volatile unsigned int *p, unsigned int old, unsigned int new) -{ - unsigned int prev; - - __asm__ __volatile__ ("\n\ -1: lwarx %0,0,%2 \n\ - cmpw 0,%0,%3 \n\ - bne 2f \n" -" stwcx. %4,0,%2 \n\ - bne- 1b\n" -#ifdef CONFIG_SMP -" sync\n" -#endif /* CONFIG_SMP */ -"2:" - : "=&r" (prev), "=m" (*p) - : "r" (p), "r" (old), "r" (new), "m" (*p) - : "cc", "memory"); - - return prev; -} - -/* This function doesn't exist, so you'll get a linker error - if something tries to do an invalid cmpxchg(). */ -extern void __cmpxchg_called_with_bad_pointer(void); - -static __inline__ unsigned long -__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size) -{ - switch (size) { - case 4: - return __cmpxchg_u32(ptr, old, new); -#if 0 /* we don't have __cmpxchg_u64 on 32-bit PPC */ - case 8: - return __cmpxchg_u64(ptr, old, new); -#endif /* 0 */ - } - __cmpxchg_called_with_bad_pointer(); - return old; -} - -#define cmpxchg(ptr,o,n) \ - ({ \ - __typeof__(*(ptr)) _o_ = (o); \ - __typeof__(*(ptr)) _n_ = (n); \ - (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \ - (unsigned long)_n_, sizeof(*(ptr))); \ - }) - - #define CPU_FTR_601 0x00000100 #define CLOCK_TICK_RATE 1193180 /* Underlying HZ */