diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/x86/hle.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86/hle.h | 70 |
1 files changed, 3 insertions, 67 deletions
diff --git a/sysdeps/unix/sysv/linux/x86/hle.h b/sysdeps/unix/sysv/linux/x86/hle.h index 4a7b9e3bf7..0449026839 100644 --- a/sysdeps/unix/sysv/linux/x86/hle.h +++ b/sysdeps/unix/sysv/linux/x86/hle.h @@ -1,75 +1,11 @@ -/* Shared RTM header. Emulate TSX intrinsics for compilers and assemblers - that do not support the intrinsics and instructions yet. */ +/* Shared RTM header. */ #ifndef _HLE_H #define _HLE_H 1 -#ifdef __ASSEMBLER__ +#include <x86intrin.h> -.macro XBEGIN target - .byte 0xc7,0xf8 - .long \target-1f -1: -.endm - -.macro XEND - .byte 0x0f,0x01,0xd5 -.endm - -.macro XABORT code - .byte 0xc6,0xf8,\code -.endm - -.macro XTEST - .byte 0x0f,0x01,0xd6 -.endm - -#endif - -/* Official RTM intrinsics interface matching gcc/icc, but works - on older gcc compatible compilers and binutils. - We should somehow detect if the compiler supports it, because - it may be able to generate slightly better code. */ - -#define _XBEGIN_STARTED (~0u) -#define _XABORT_EXPLICIT (1 << 0) -#define _XABORT_RETRY (1 << 1) -#define _XABORT_CONFLICT (1 << 2) -#define _XABORT_CAPACITY (1 << 3) -#define _XABORT_DEBUG (1 << 4) -#define _XABORT_NESTED (1 << 5) -#define _XABORT_CODE(x) (((x) >> 24) & 0xff) - -#define _ABORT_LOCK_BUSY 0xff +#define _ABORT_LOCK_BUSY 0xff #define _ABORT_LOCK_IS_LOCKED 0xfe #define _ABORT_NESTED_TRYLOCK 0xfd -#ifndef __ASSEMBLER__ - -#define __force_inline __attribute__((__always_inline__)) inline - -static __force_inline int _xbegin(void) -{ - int ret = _XBEGIN_STARTED; - asm volatile (".byte 0xc7,0xf8 ; .long 0" : "+a" (ret) :: "memory"); - return ret; -} - -static __force_inline void _xend(void) -{ - asm volatile (".byte 0x0f,0x01,0xd5" ::: "memory"); -} - -static __force_inline void _xabort(const unsigned int status) -{ - asm volatile (".byte 0xc6,0xf8,%P0" :: "i" (status) : "memory"); -} - -static __force_inline int _xtest(void) -{ - unsigned char out; - asm volatile (".byte 0x0f,0x01,0xd6 ; setnz %0" : "=r" (out) :: "memory"); - return out; -} - -#endif #endif |