Attachment #280787 for bug #200759

Lines 63-68 module_param(ignore_ppc, int, 0644); Link Here

(-)a/drivers/acpi/processor_perflib.c (-2 / +14 lines)
63	MODULE_PARM_DESC(ignore_ppc, "If the frequency of your machine gets wrongly" \	63	MODULE_PARM_DESC(ignore_ppc, "If the frequency of your machine gets wrongly" \
64	"limited by BIOS, this should help");	64	"limited by BIOS, this should help");
65		65
		66	static int broadcast_ppc;
		67	module_param(broadcast_ppc, int, 0644);
		68	MODULE_PARM_DESC(broadcast_ppc, "Broadcast the ppc to all online CPUs");
		69
66	#define PPC_REGISTERED 1	70	#define PPC_REGISTERED 1
67	#define PPC_IN_USE 2	71	#define PPC_IN_USE 2
68		72
Lines 180-187 void acpi_processor_ppc_has_changed(struct acpi_processor *pr, int event_flag) Link Here
180	else	184	else
181	acpi_processor_ppc_ost(pr->handle, 0);	185	acpi_processor_ppc_ost(pr->handle, 0);
182	}	186	}
183	if (ret >= 0)	187	if (ret >= 0) {
184	cpufreq_update_policy(pr->id);	188	if (broadcast_ppc) {
		189	int cpu;
		190
		191	for_each_possible_cpu(cpu)
		192	cpufreq_update_policy(cpu);
		193	} else {
		194	cpufreq_update_policy(pr->id);
		195	}
		196	}
185	}	197	}
186		198
187	int acpi_processor_get_bios_limit(int cpu, unsigned int *limit)	199	int acpi_processor_get_bios_limit(int cpu, unsigned int *limit)

Lines 2241-2246 static int cpufreq_set_policy(struct cpufreq_policy *policy, Link Here

(-)a/drivers/cpufreq/cpufreq.c (+2 lines)
2241		2241
2242	policy->min = new_policy->min;	2242	policy->min = new_policy->min;
2243	policy->max = new_policy->max;	2243	policy->max = new_policy->max;
		2244	policy->cpuinfo.max_freq = new_policy->cpuinfo.max_freq;
		2245	policy->cpuinfo.min_freq = new_policy->cpuinfo.min_freq;
2244	trace_cpu_frequency_limits(policy);	2246	trace_cpu_frequency_limits(policy);
2245		2247
2246	policy->cached_target_freq = UINT_MAX;	2248	policy->cached_target_freq = UINT_MAX;





static int intel_pstate_verify_policy(struct cpufreq_policy *policy)
{
	int max_freq;
	struct cpudata *cpu = all_cpu_data[policy->cpu];

	update_turbo_state();
	max_freq = intel_pstate_get_max_freq(cpu);

	if (acpi_ppc && policy->max == policy->cpuinfo.max_freq &&
	    max_freq != policy->cpuinfo.max_freq) {
		/*
		 * System was not running under any constraints, but the
		 * current max possible frequency is changed. So reset
		 * policy limits.
		 */
		policy->cpuinfo.max_freq = policy->max = max_freq;
	}

	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
				     max_freq);

	if (policy->policy != CPUFREQ_POLICY_POWERSAVE &&
	    policy->policy != CPUFREQ_POLICY_PERFORMANCE)

Return to bug 200759

Lines 2088-2098 static void intel_pstate_adjust_policy_max(struct cpufreq_policy *policy, Link Here

(-)a/drivers/cpufreq/intel_pstate.c (-1 / +14 lines)
2088		2088
2089	static int intel_pstate_verify_policy(struct cpufreq_policy *policy)	2089	static int intel_pstate_verify_policy(struct cpufreq_policy *policy)
2090	{	2090	{
		2091	int max_freq;
2091	struct cpudata *cpu = all_cpu_data[policy->cpu];	2092	struct cpudata *cpu = all_cpu_data[policy->cpu];
2092		2093
2093	update_turbo_state();	2094	update_turbo_state();
		2095	max_freq = intel_pstate_get_max_freq(cpu);
		2096
		2097	if (acpi_ppc && policy->max == policy->cpuinfo.max_freq &&
		2098	max_freq != policy->cpuinfo.max_freq) {
		2099	/*
		2100	* System was not running under any constraints, but the
		2101	* current max possible frequency is changed. So reset
		2102	* policy limits.
		2103	*/
		2104	policy->cpuinfo.max_freq = policy->max = max_freq;
		2105	}
		2106
2094	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,	2107	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
2095	intel_pstate_get_max_freq(cpu));	2108	max_freq);
2096		2109
2097	if (policy->policy != CPUFREQ_POLICY_POWERSAVE &&	2110	if (policy->policy != CPUFREQ_POLICY_POWERSAVE &&
2098	policy->policy != CPUFREQ_POLICY_PERFORMANCE)	2111	policy->policy != CPUFREQ_POLICY_PERFORMANCE)