| /* |
| * 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. |
| */ |
| #if R10000_LLSC_WAR |
| # define __SC_BEQZ "beqzl " |
| #elif MIPS_ISA_REV >= 6 |
| # define __SC_BEQZ "beqzc " |
| #else |
| # define __SC_BEQZ "beqz " |
| #endif |
| |
| #endif /* __ASM_LLSC_H */ |
