diff options
Diffstat (limited to 'sys/include/arch/amd64/cdefs.h')
| -rw-r--r-- | sys/include/arch/amd64/cdefs.h | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/sys/include/arch/amd64/cdefs.h b/sys/include/arch/amd64/cdefs.h index 98d3f0b..0a20324 100644 --- a/sys/include/arch/amd64/cdefs.h +++ b/sys/include/arch/amd64/cdefs.h @@ -31,7 +31,25 @@ #define _AMD64_CDEFS_H_ #include <sys/cdefs.h> +#include <machine/sync.h> -#define md_pause() __ASMV("rep; nop") +/* + * Please use CLI wisely, it is a good idea to use + * md_sync_all() after using STI to ensure stable + * system operation. + */ +#define md_pause() __ASMV("rep; nop") /* (F3 90) PAUSE */ +#define md_intoff() __ASMV("cli") /* Clear interrupts */ +#define md_inton() __ASMV("sti") /* Enable interrupts */ +#define md_hlt() __ASMV("hlt") /* Halt the processor */ + +/* + * AMD64 specific defines + */ +#define __invlpg(VA) \ + __ASMV("invlpg %0" \ + : \ + : "m" ((VA)) \ + : "memory") #endif /* !_AMD64_CDEFS_H_ */ |