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Commit eb6d1c28 authored by Rafael J. Wysocki's avatar Rafael J. Wysocki
Browse files

Merge branches 'pm-cpuidle', 'pm-opp' and 'pm-tools' 

* pm-cpuidle:
  intel_idle: Skylake Client Support - updated

* pm-opp:
  PM / OPP: Fix typo modifcation -> modification
  PM / OPP: of_property_count_u32_elems() can return errors

* pm-tools:
  tools/power turbosat: update version number
  tools/power turbostat: SKL: Adjust for TSC difference from base frequency
  tools/power turbostat: KNL workaround for %Busy and Avg_MHz
  tools/power turbostat: IVB Xeon: fix --debug regression
parents 01351eb2 e9a7bed4 e1a2d49c a9062dce

drivers/base/power/opp.c

+12 −5
Original line number Diff line number Diff line
@@ -892,10 +892,17 @@ static int opp_get_microvolt(struct dev_pm_opp *opp, struct device *dev) 
	u32 microvolt[3] = {0};

	int count, ret;



	count = of_property_count_u32_elems(opp->np, "opp-microvolt");

	if (!count)

	/* Missing property isn't a problem, but an invalid entry is */

	if (!of_find_property(opp->np, "opp-microvolt", NULL))

		return 0;



	count = of_property_count_u32_elems(opp->np, "opp-microvolt");

	if (count < 0) {

		dev_err(dev, "%s: Invalid opp-microvolt property (%d)\n",

			__func__, count);

		return count;

	}



	/* There can be one or three elements here */

	if (count != 1 && count != 3) {

		dev_err(dev, "%s: Invalid number of elements in opp-microvolt property (%d)\n",
@@ -1063,7 +1070,7 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_add); 
 * share a common logic which is isolated here.

 *

 * Return: -EINVAL for bad pointers, -ENOMEM if no memory available for the

 * copy operation, returns 0 if no modifcation was done OR modification was

 * copy operation, returns 0 if no modification was done OR modification was

 * successful.

 *

 * Locking: The internal device_opp and opp structures are RCU protected.
@@ -1151,7 +1158,7 @@ static int _opp_set_availability(struct device *dev, unsigned long freq, 
 * mutex locking or synchronize_rcu() blocking calls cannot be used.

 *

 * Return: -EINVAL for bad pointers, -ENOMEM if no memory available for the

 * copy operation, returns 0 if no modifcation was done OR modification was

 * copy operation, returns 0 if no modification was done OR modification was

 * successful.

 */

int dev_pm_opp_enable(struct device *dev, unsigned long freq)
@@ -1177,7 +1184,7 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_enable); 
 * mutex locking or synchronize_rcu() blocking calls cannot be used.

 *

 * Return: -EINVAL for bad pointers, -ENOMEM if no memory available for the

 * copy operation, returns 0 if no modifcation was done OR modification was

 * copy operation, returns 0 if no modification was done OR modification was

 * successful.

 */

int dev_pm_opp_disable(struct device *dev, unsigned long freq)

drivers/idle/intel_idle.c

+10 −2
Original line number Diff line number Diff line
@@ -620,7 +620,7 @@ static struct cpuidle_state skl_cstates[] = { 
		.name = "C6-SKL",

		.desc = "MWAIT 0x20",

		.flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED,

		.exit_latency = 75,

		.exit_latency = 85,

		.target_residency = 200,

		.enter = &intel_idle,

		.enter_freeze = intel_idle_freeze, },
@@ -636,10 +636,18 @@ static struct cpuidle_state skl_cstates[] = { 
		.name = "C8-SKL",

		.desc = "MWAIT 0x40",

		.flags = MWAIT2flg(0x40) | CPUIDLE_FLAG_TLB_FLUSHED,

		.exit_latency = 174,

		.exit_latency = 200,

		.target_residency = 800,

		.enter = &intel_idle,

		.enter_freeze = intel_idle_freeze, },

	{

		.name = "C9-SKL",

		.desc = "MWAIT 0x50",

		.flags = MWAIT2flg(0x50) | CPUIDLE_FLAG_TLB_FLUSHED,

		.exit_latency = 480,

		.target_residency = 5000,

		.enter = &intel_idle,

		.enter_freeze = intel_idle_freeze, },

	{

		.name = "C10-SKL",

		.desc = "MWAIT 0x60",

tools/power/x86/turbostat/turbostat.c

+34 −5
Original line number Diff line number Diff line
@@ -71,8 +71,11 @@ unsigned int extra_msr_offset32; 
unsigned int extra_msr_offset64;

unsigned int extra_delta_offset32;

unsigned int extra_delta_offset64;

unsigned int aperf_mperf_multiplier = 1;

int do_smi;

double bclk;

double base_hz;

double tsc_tweak = 1.0;

unsigned int show_pkg;

unsigned int show_core;

unsigned int show_cpu;
@@ -502,7 +505,7 @@ int format_counters(struct thread_data *t, struct core_data *c, 
	/* %Busy */

	if (has_aperf) {

		if (!skip_c0)

			outp += sprintf(outp, "%8.2f", 100.0 * t->mperf/t->tsc);

			outp += sprintf(outp, "%8.2f", 100.0 * t->mperf/t->tsc/tsc_tweak);

		else

			outp += sprintf(outp, "********");

	}
@@ -510,7 +513,7 @@ int format_counters(struct thread_data *t, struct core_data *c, 
	/* Bzy_MHz */

	if (has_aperf)

		outp += sprintf(outp, "%8.0f",

			1.0 * t->tsc / units * t->aperf / t->mperf / interval_float);

			1.0 * t->tsc * tsc_tweak / units * t->aperf / t->mperf / interval_float);



	/* TSC_MHz */

	outp += sprintf(outp, "%8.0f", 1.0 * t->tsc/units/interval_float);
@@ -984,6 +987,8 @@ int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) 
			return -3;

		if (get_msr(cpu, MSR_IA32_MPERF, &t->mperf))

			return -4;

		t->aperf = t->aperf * aperf_mperf_multiplier;

		t->mperf = t->mperf * aperf_mperf_multiplier;

	}



	if (do_smi) {
@@ -1149,6 +1154,19 @@ int slv_pkg_cstate_limits[16] = {PCL__0, PCL__1, PCLRSV, PCLRSV, PCL__4, PCLRSV, 
int amt_pkg_cstate_limits[16] = {PCL__0, PCL__1, PCL__2, PCLRSV, PCLRSV, PCLRSV, PCL__6, PCL__7, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV};

int phi_pkg_cstate_limits[16] = {PCL__0, PCL__2, PCL_6N, PCL_6R, PCLRSV, PCLRSV, PCLRSV, PCLUNL, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV};





static void

calculate_tsc_tweak()

{

	unsigned long long msr;

	unsigned int base_ratio;



	get_msr(base_cpu, MSR_NHM_PLATFORM_INFO, &msr);

	base_ratio = (msr >> 8) & 0xFF;

	base_hz = base_ratio * bclk * 1000000;

	tsc_tweak = base_hz / tsc_hz;

}



static void

dump_nhm_platform_info(void)

{
@@ -1926,8 +1944,6 @@ int has_config_tdp(unsigned int family, unsigned int model) 


	switch (model) {

	case 0x3A:	/* IVB */

	case 0x3E:	/* IVB Xeon */



	case 0x3C:	/* HSW */

	case 0x3F:	/* HSX */

	case 0x45:	/* HSW */
@@ -2543,6 +2559,13 @@ int is_knl(unsigned int family, unsigned int model) 
	return 0;

}



unsigned int get_aperf_mperf_multiplier(unsigned int family, unsigned int model)

{

	if (is_knl(family, model))

		return 1024;

	return 1;

}



#define SLM_BCLK_FREQS 5

double slm_freq_table[SLM_BCLK_FREQS] = { 83.3, 100.0, 133.3, 116.7, 80.0};
@@ -2744,6 +2767,9 @@ void process_cpuid() 
		}

	}



	if (has_aperf)

		aperf_mperf_multiplier = get_aperf_mperf_multiplier(family, model);



	do_nhm_platform_info = do_nhm_cstates = do_smi = probe_nhm_msrs(family, model);

	do_snb_cstates = has_snb_msrs(family, model);

	do_pc2 = do_snb_cstates && (pkg_cstate_limit >= PCL__2);
@@ -2762,6 +2788,9 @@ void process_cpuid() 
	if (debug)

		dump_cstate_pstate_config_info();



	if (has_skl_msrs(family, model))

		calculate_tsc_tweak();



	return;

}
@@ -3090,7 +3119,7 @@ int get_and_dump_counters(void) 
}



void print_version() {

	fprintf(stderr, "turbostat version 4.7 17-June, 2015"

	fprintf(stderr, "turbostat version 4.8 26-Sep, 2015"

		" - Len Brown <lenb@kernel.org>\n");

}