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H. Peter Anvinbc83ccc2010-09-17 15:36:40 -07001#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 Browne022e7e2013-02-01 23:37:30 -05007#define MWAIT_HINT2CSTATE(hint) (((hint) >> MWAIT_SUBSTATE_SIZE) & MWAIT_CSTATE_MASK)
8#define MWAIT_HINT2SUBSTATE(hint) ((hint) & MWAIT_CSTATE_MASK)
H. Peter Anvinbc83ccc2010-09-17 15:36:40 -07009
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 */