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/* * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Macros for 32/64-bit neutral inline assembler */ #ifndef __ASM_LLSC_H #define __ASM_LLSC_H #include <asm/isa-rev.h> #if _MIPS_SZLONG == 32 #define __LL "ll " #define __SC "sc " #define __INS "ins " #define __EXT "ext " #elif _MIPS_SZLONG == 64 #define __LL "lld " #define __SC "scd " #define __INS "dins " #define __EXT "dext " #endif /* * Using a branch-likely instruction to check the result of an sc instruction * works around a bug present in R10000 CPUs prior to revision 3.0 that could * cause ll-sc sequences to execute non-atomically. */ #ifdef CONFIG_WAR_R10000_LLSC # define __SC_BEQZ "beqzl " #elif MIPS_ISA_REV >= 6 # define __SC_BEQZ "beqzc " #else # define __SC_BEQZ "beqz " #endif #endif /* __ASM_LLSC_H */