diff options
Diffstat (limited to 'arch/x86')
-rw-r--r-- | arch/x86/include/asm/mwait.h | 15 | ||||
-rw-r--r-- | arch/x86/kernel/acpi/cstate.c | 11 |
2 files changed, 16 insertions, 10 deletions
diff --git a/arch/x86/include/asm/mwait.h b/arch/x86/include/asm/mwait.h new file mode 100644 index 000000000000..bcdff997668c --- /dev/null +++ b/arch/x86/include/asm/mwait.h | |||
@@ -0,0 +1,15 @@ | |||
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 | ||
7 | #define MWAIT_MAX_NUM_CSTATES 8 | ||
8 | |||
9 | #define CPUID_MWAIT_LEAF 5 | ||
10 | #define CPUID5_ECX_EXTENSIONS_SUPPORTED 0x1 | ||
11 | #define CPUID5_ECX_INTERRUPT_BREAK 0x2 | ||
12 | |||
13 | #define MWAIT_ECX_INTERRUPT_BREAK 0x1 | ||
14 | |||
15 | #endif /* _ASM_X86_MWAIT_H */ | ||
diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c index fb7a5f052e2b..bcc4adda7b9b 100644 --- a/arch/x86/kernel/acpi/cstate.c +++ b/arch/x86/kernel/acpi/cstate.c | |||
@@ -13,6 +13,7 @@ | |||
13 | 13 | ||
14 | #include <acpi/processor.h> | 14 | #include <acpi/processor.h> |
15 | #include <asm/acpi.h> | 15 | #include <asm/acpi.h> |
16 | #include <asm/mwait.h> | ||
16 | 17 | ||
17 | /* | 18 | /* |
18 | * Initialize bm_flags based on the CPU cache properties | 19 | * Initialize bm_flags based on the CPU cache properties |
@@ -65,16 +66,6 @@ static struct cstate_entry *cpu_cstate_entry; /* per CPU ptr */ | |||
65 | 66 | ||
66 | static short mwait_supported[ACPI_PROCESSOR_MAX_POWER]; | 67 | static short mwait_supported[ACPI_PROCESSOR_MAX_POWER]; |
67 | 68 | ||
68 | #define MWAIT_SUBSTATE_MASK (0xf) | ||
69 | #define MWAIT_CSTATE_MASK (0xf) | ||
70 | #define MWAIT_SUBSTATE_SIZE (4) | ||
71 | |||
72 | #define CPUID_MWAIT_LEAF (5) | ||
73 | #define CPUID5_ECX_EXTENSIONS_SUPPORTED (0x1) | ||
74 | #define CPUID5_ECX_INTERRUPT_BREAK (0x2) | ||
75 | |||
76 | #define MWAIT_ECX_INTERRUPT_BREAK (0x1) | ||
77 | |||
78 | #define NATIVE_CSTATE_BEYOND_HALT (2) | 69 | #define NATIVE_CSTATE_BEYOND_HALT (2) |
79 | 70 | ||
80 | static long acpi_processor_ffh_cstate_probe_cpu(void *_cx) | 71 | static long acpi_processor_ffh_cstate_probe_cpu(void *_cx) |