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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>
This commit is contained in:
Len Brown 2010-12-02 01:19:32 -05:00
parent e8a7e48bb2
commit 56b9aea3b7
1 changed files with 3 additions and 9 deletions
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12
drivers/idle/intel_idle.c
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@ -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);