H. Peter Anvin | bc83ccc | 2010-09-17 15:36:40 -0700 | [diff] [blame] | 1 | #ifndef _ASM_X86_MWAIT_H |
| 2 | #define _ASM_X86_MWAIT_H |
| 3 | |
| 4 | #define MWAIT_SUBSTATE_MASK 0xf |
| 5 | #define MWAIT_CSTATE_MASK 0xf |
| 6 | #define MWAIT_SUBSTATE_SIZE 4 |
Len Brown | e022e7e | 2013-02-01 23:37:30 -0500 | [diff] [blame] | 7 | #define MWAIT_HINT2CSTATE(hint) (((hint) >> MWAIT_SUBSTATE_SIZE) & MWAIT_CSTATE_MASK) |
| 8 | #define MWAIT_HINT2SUBSTATE(hint) ((hint) & MWAIT_CSTATE_MASK) |
H. Peter Anvin | bc83ccc | 2010-09-17 15:36:40 -0700 | [diff] [blame] | 9 | |
| 10 | #define CPUID_MWAIT_LEAF 5 |
| 11 | #define CPUID5_ECX_EXTENSIONS_SUPPORTED 0x1 |
| 12 | #define CPUID5_ECX_INTERRUPT_BREAK 0x2 |
| 13 | |
| 14 | #define MWAIT_ECX_INTERRUPT_BREAK 0x1 |
| 15 | |
| 16 | #endif /* _ASM_X86_MWAIT_H */ |