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path: root/drivers/idle/intel_idle.c
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Diffstat (limited to 'drivers/idle/intel_idle.c')
-rw-r--r--drivers/idle/intel_idle.c12
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)
273 273
274 pr_debug(PREFIX "MWAIT substates: 0x%x\n", mwait_substates); 274 pr_debug(PREFIX "MWAIT substates: 0x%x\n", mwait_substates);
275 275
276 if (boot_cpu_has(X86_FEATURE_ARAT)) /* Always Reliable APIC Timer */
277 lapic_timer_reliable_states = 0xFFFFFFFF;
278 276
279 if (boot_cpu_data.x86 != 6) /* family 6 */ 277 if (boot_cpu_data.x86 != 6) /* family 6 */
280 return -ENODEV; 278 return -ENODEV;
@@ -286,8 +284,6 @@ static int intel_idle_probe(void)
286 case 0x1F: /* Core i7 and i5 Processor - Nehalem */ 284 case 0x1F: /* Core i7 and i5 Processor - Nehalem */
287 case 0x2E: /* Nehalem-EX Xeon */ 285 case 0x2E: /* Nehalem-EX Xeon */
288 case 0x2F: /* Westmere-EX Xeon */ 286 case 0x2F: /* Westmere-EX Xeon */
289 lapic_timer_reliable_states = (1 << 1); /* C1 */
290
291 case 0x25: /* Westmere */ 287 case 0x25: /* Westmere */
292 case 0x2C: /* Westmere */ 288 case 0x2C: /* Westmere */
293 cpuidle_state_table = nehalem_cstates; 289 cpuidle_state_table = nehalem_cstates;
@@ -295,7 +291,6 @@ static int intel_idle_probe(void)
295 291
296 case 0x1C: /* 28 - Atom Processor */ 292 case 0x1C: /* 28 - Atom Processor */
297 case 0x26: /* 38 - Lincroft Atom Processor */ 293 case 0x26: /* 38 - Lincroft Atom Processor */
298 lapic_timer_reliable_states = (1 << 1); /* C1 */
299 cpuidle_state_table = atom_cstates; 294 cpuidle_state_table = atom_cstates;
300 break; 295 break;
301 296
@@ -303,10 +298,6 @@ static int intel_idle_probe(void)
303 case 0x2D: /* SNB Xeon */ 298 case 0x2D: /* SNB Xeon */
304 cpuidle_state_table = snb_cstates; 299 cpuidle_state_table = snb_cstates;
305 break; 300 break;
306#ifdef FUTURE_USE
307 case 0x17: /* 23 - Core 2 Duo */
308 lapic_timer_reliable_states = (1 << 2) | (1 << 1); /* C2, C1 */
309#endif
310 301
311 default: 302 default:
312 pr_debug(PREFIX "does not run on family %d model %d\n", 303 pr_debug(PREFIX "does not run on family %d model %d\n",
@@ -314,6 +305,9 @@ static int intel_idle_probe(void)
314 return -ENODEV; 305 return -ENODEV;
315 } 306 }
316 307
308 if (boot_cpu_has(X86_FEATURE_ARAT)) /* Always Reliable APIC Timer */
309 lapic_timer_reliable_states = 0xFFFFFFFF;
310
317 pr_debug(PREFIX "v" INTEL_IDLE_VERSION 311 pr_debug(PREFIX "v" INTEL_IDLE_VERSION
318 " model 0x%X\n", boot_cpu_data.x86_model); 312 " model 0x%X\n", boot_cpu_data.x86_model);
319 313