tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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intel_idle: delete substates DEBUG modparam

it isn't useful anymore

Signed-off-by: Len Brown <len.brown@intel.com>

Len Brown c4236282 26717172

+7 -13
unified split
+7 -13
drivers/idle/intel_idle.c
··· 79 static int max_cstate = MWAIT_MAX_NUM_CSTATES - 1; 80 static int power_policy = 7; /* 0 = max perf; 15 = max powersave */ 81 82 - static unsigned int substates; 83 static int (*choose_substate)(int); 84 85 /* Reliable LAPIC Timer States, bit 1 for C1 etc. */ ··· 184 power_policy &= 0xF; /* valid range: 0-15 */ 185 cstate &= 7; /* valid range: 0-7 */ 186 187 - num_substates = (substates >> ((cstate) * 4)) & MWAIT_SUBSTATE_MASK; 188 189 if (num_substates <= 1) 190 return 0; ··· 260 */ 261 static int intel_idle_probe(void) 262 { 263 - unsigned int eax, ebx, ecx, edx; 264 265 if (max_cstate == 0) { 266 pr_debug(PREFIX "disabled\n"); ··· 276 if (boot_cpu_data.cpuid_level < CPUID_MWAIT_LEAF) 277 return -ENODEV; 278 279 - cpuid(CPUID_MWAIT_LEAF, &eax, &ebx, &ecx, &edx); 280 281 if (!(ecx & CPUID5_ECX_EXTENSIONS_SUPPORTED) || 282 !(ecx & CPUID5_ECX_INTERRUPT_BREAK)) 283 return -ENODEV; 284 - #ifdef DEBUG 285 - if (substates == 0) /* can over-ride via modparam */ 286 - #endif 287 - substates = edx; 288 289 - pr_debug(PREFIX "MWAIT substates: 0x%x\n", substates); 290 291 if (boot_cpu_has(X86_FEATURE_ARAT)) /* Always Reliable APIC Timer */ 292 lapic_timer_reliable_states = 0xFFFFFFFF; ··· 373 } 374 375 /* does the state exist in CPUID.MWAIT? */ 376 - num_substates = (substates >> ((cstate) * 4)) 377 & MWAIT_SUBSTATE_MASK; 378 if (num_substates == 0) 379 continue; ··· 449 450 module_param(power_policy, int, 0644); 451 module_param(max_cstate, int, 0444); 452 - #ifdef DEBUG 453 - module_param(substates, int, 0444); 454 - #endif 455 456 MODULE_AUTHOR("Len Brown <len.brown@intel.com>"); 457 MODULE_DESCRIPTION("Cpuidle driver for Intel Hardware v" INTEL_IDLE_VERSION);
··· 79 static int max_cstate = MWAIT_MAX_NUM_CSTATES - 1; 80 static int power_policy = 7; /* 0 = max perf; 15 = max powersave */ 81 82 + static unsigned int mwait_substates; 83 static int (*choose_substate)(int); 84 85 /* Reliable LAPIC Timer States, bit 1 for C1 etc. */ ··· 184 power_policy &= 0xF; /* valid range: 0-15 */ 185 cstate &= 7; /* valid range: 0-7 */ 186 187 + num_substates = (mwait_substates >> ((cstate) * 4)) 188 + & MWAIT_SUBSTATE_MASK; 189 190 if (num_substates <= 1) 191 return 0; ··· 259 */ 260 static int intel_idle_probe(void) 261 { 262 + unsigned int eax, ebx, ecx; 263 264 if (max_cstate == 0) { 265 pr_debug(PREFIX "disabled\n"); ··· 275 if (boot_cpu_data.cpuid_level < CPUID_MWAIT_LEAF) 276 return -ENODEV; 277 278 + cpuid(CPUID_MWAIT_LEAF, &eax, &ebx, &ecx, &mwait_substates); 279 280 if (!(ecx & CPUID5_ECX_EXTENSIONS_SUPPORTED) || 281 !(ecx & CPUID5_ECX_INTERRUPT_BREAK)) 282 return -ENODEV; 283 284 + pr_debug(PREFIX "MWAIT substates: 0x%x\n", mwait_substates); 285 286 if (boot_cpu_has(X86_FEATURE_ARAT)) /* Always Reliable APIC Timer */ 287 lapic_timer_reliable_states = 0xFFFFFFFF; ··· 376 } 377 378 /* does the state exist in CPUID.MWAIT? */ 379 + num_substates = (mwait_substates >> ((cstate) * 4)) 380 & MWAIT_SUBSTATE_MASK; 381 if (num_substates == 0) 382 continue; ··· 452 453 module_param(power_policy, int, 0644); 454 module_param(max_cstate, int, 0444); 455 456 MODULE_AUTHOR("Len Brown <len.brown@intel.com>"); 457 MODULE_DESCRIPTION("Cpuidle driver for Intel Hardware v" INTEL_IDLE_VERSION);