#ifndef _ASM_PPC64_MEMORY_H_ #define _ASM_PPC64_MEMORY_H_ /* * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #include <linux/config.h> /* * Arguably the bitops and *xchg operations don't imply any memory barrier * or SMP ordering, but in fact a lot of drivers expect them to imply * both, since they do on x86 cpus. */ #ifdef CONFIG_SMP #define EIEIO_ON_SMP "eieio\n" #define ISYNC_ON_SMP "\n\tisync" #else #define EIEIO_ON_SMP #define ISYNC_ON_SMP #endif static inline void eieio(void) { __asm__ __volatile__ ("eieio" : : : "memory"); } static inline void isync(void) { __asm__ __volatile__ ("isync" : : : "memory"); } #ifdef CONFIG_SMP #define eieio_on_smp() eieio() #define isync_on_smp() isync() #else #define eieio_on_smp() __asm__ __volatile__("": : :"memory") #define isync_on_smp() __asm__ __volatile__("": : :"memory") #endif /* Macros for adjusting thread priority (hardware multi-threading) */ #define HMT_very_low() asm volatile("or 31,31,31 # very low priority") #define HMT_low() asm volatile("or 1,1,1 # low priority") #define HMT_medium_low() asm volatile("or 6,6,6 # medium low priority") #define HMT_medium() asm volatile("or 2,2,2 # medium priority") #define HMT_medium_high() asm volatile("or 5,5,5 # medium high priority") #define HMT_high() asm volatile("or 3,3,3 # high priority") #define HMT_VERY_LOW "\tor 31,31,31 # very low priority\n" #define HMT_LOW "\tor 1,1,1 # low priority\n" #define HMT_MEDIUM_LOW "\tor 6,6,6 # medium low priority\n" #define HMT_MEDIUM "\tor 2,2,2 # medium priority\n" #define HMT_MEDIUM_HIGH "\tor 5,5,5 # medium high priority\n" #define HMT_HIGH "\tor 3,3,3 # high priority\n" #endif