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| author | Len Brown <len.brown@intel.com> | 2010-12-02 01:19:32 -0500 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2010-12-02 01:19:32 -0500 |
| commit | 56b9aea3b740be7665be100872a913da9bdc653b (patch) | |
| tree | 3e64253c68590811cde735f257176cfcd51fdc84 /drivers/idle | |
| parent | e8a7e48bb248a1196484d3f8afa53bded2b24e71 (diff) | |
| download | linux-stable-56b9aea3b740be7665be100872a913da9bdc653b.tar.gz linux-stable-56b9aea3b740be7665be100872a913da9bdc653b.tar.bz2 linux-stable-56b9aea3b740be7665be100872a913da9bdc653b.zip | |
intel_idle: recognize ARAT on WSM-EX
We erroneously ignored the Always Running APIC Timer on WSM-EX.
Move the check for ARAT down so that it can apply to any/all models.
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/idle')
| -rw-r--r-- | drivers/idle/intel_idle.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index 41665d2f9f93..c131d58bcb50 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -273,8 +273,6 @@ static int intel_idle_probe(void) pr_debug(PREFIX "MWAIT substates: 0x%x\n", mwait_substates); - if (boot_cpu_has(X86_FEATURE_ARAT)) /* Always Reliable APIC Timer */ - lapic_timer_reliable_states = 0xFFFFFFFF; if (boot_cpu_data.x86 != 6) /* family 6 */ return -ENODEV; @@ -286,8 +284,6 @@ static int intel_idle_probe(void) case 0x1F: /* Core i7 and i5 Processor - Nehalem */ case 0x2E: /* Nehalem-EX Xeon */ case 0x2F: /* Westmere-EX Xeon */ - lapic_timer_reliable_states = (1 << 1); /* C1 */ - case 0x25: /* Westmere */ case 0x2C: /* Westmere */ cpuidle_state_table = nehalem_cstates; @@ -295,7 +291,6 @@ static int intel_idle_probe(void) case 0x1C: /* 28 - Atom Processor */ case 0x26: /* 38 - Lincroft Atom Processor */ - lapic_timer_reliable_states = (1 << 1); /* C1 */ cpuidle_state_table = atom_cstates; break; @@ -303,10 +298,6 @@ static int intel_idle_probe(void) case 0x2D: /* SNB Xeon */ cpuidle_state_table = snb_cstates; break; -#ifdef FUTURE_USE - case 0x17: /* 23 - Core 2 Duo */ - lapic_timer_reliable_states = (1 << 2) | (1 << 1); /* C2, C1 */ -#endif default: pr_debug(PREFIX "does not run on family %d model %d\n", @@ -314,6 +305,9 @@ static int intel_idle_probe(void) return -ENODEV; } + if (boot_cpu_has(X86_FEATURE_ARAT)) /* Always Reliable APIC Timer */ + lapic_timer_reliable_states = 0xFFFFFFFF; + pr_debug(PREFIX "v" INTEL_IDLE_VERSION " model 0x%X\n", boot_cpu_data.x86_model); |