tools/power/x86/intel-speed-select: Add support for core-power discovery (645feeb2) · Commits · 戴 / test

tools/power/x86/intel-speed-select/isst-core.c

+55 −0

Original line number	Diff line number	Diff line
		@@ -6,6 +6,44 @@

		#include "isst.h"

		int isst_write_pm_config(int cpu, int cp_state)
		{
		unsigned int req, resp;
		int ret;

		if (cp_state)
		req = BIT(16);
		else
		req = 0;

		ret = isst_send_mbox_command(cpu, WRITE_PM_CONFIG, PM_FEATURE, 0, req,
		&resp);
		if (ret)
		return ret;

		debug_printf("cpu:%d WRITE_PM_CONFIG resp:%x\n", cpu, resp);

		return 0;
		}

		int isst_read_pm_config(int cpu, int cp_state, int cp_cap)
		{
		unsigned int resp;
		int ret;

		ret = isst_send_mbox_command(cpu, READ_PM_CONFIG, PM_FEATURE, 0, 0,
		&resp);
		if (ret)
		return ret;

		debug_printf("cpu:%d READ_PM_CONFIG resp:%x\n", cpu, resp);

		*cp_state = resp & BIT(16);
		*cp_cap = resp & BIT(0) ? 1 : 0;

		return 0;
		}

		int isst_get_ctdp_levels(int cpu, struct isst_pkg_ctdp *pkg_dev)
		{
		unsigned int resp;
		@@ -36,6 +74,7 @@ int isst_get_ctdp_levels(int cpu, struct isst_pkg_ctdp *pkg_dev)
		int isst_get_ctdp_control(int cpu, int config_index,
		struct isst_pkg_ctdp_level_info *ctdp_level)
		{
		int cp_state, cp_cap;
		unsigned int resp;
		int ret;

		@@ -50,6 +89,15 @@ int isst_get_ctdp_control(int cpu, int config_index,
		ctdp_level->fact_enabled = !!(resp & BIT(16));
		ctdp_level->pbf_enabled = !!(resp & BIT(17));

		ret = isst_read_pm_config(cpu, &cp_state, &cp_cap);
		if (ret) {
		debug_printf("cpu:%d pm_config is not supported \n", cpu);
		} else {
		debug_printf("cpu:%d pm_config SST-CP state:%d cap:%d \n", cpu, cp_state, cp_cap);
		ctdp_level->sst_cp_support = cp_cap;
		ctdp_level->sst_cp_enabled = cp_state;
		}

		debug_printf(
		"cpu:%d CONFIG_TDP_GET_TDP_CONTROL resp:%x fact_support:%d pbf_support: %d fact_enabled:%d pbf_enabled:%d\n",
		cpu, resp, ctdp_level->fact_support, ctdp_level->pbf_support,
		@@ -779,6 +827,13 @@ int isst_pm_qos_config(int cpu, int enable_clos, int priority_type)
		debug_printf("Turbo-freq feature must be disabled first\n");
		return -EINVAL;
		}
		ret = isst_write_pm_config(cpu, 0);
		if (ret)
		perror("isst_write_pm_config\n");
		} else {
		ret = isst_write_pm_config(cpu, 1);
		if (ret)
		perror("isst_write_pm_config\n");
		}

		ret = isst_send_mbox_command(cpu, CONFIG_CLOS, CLOS_PM_QOS_CONFIG, 0, 0,

tools/power/x86/intel-speed-select/isst-display.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -418,6 +418,17 @@ void isst_ctdp_display_information(int cpu, FILE *outf, int tdp_level,
		snprintf(value, sizeof(value), "unsupported");
		format_and_print(outf, base_level + 4, header, value);

		snprintf(header, sizeof(header),
		"speed-select-core-power");
		if (ctdp_level->sst_cp_support) {
		if (ctdp_level->sst_cp_enabled)
		snprintf(value, sizeof(value), "enabled");
		else
		snprintf(value, sizeof(value), "disabled");
		} else
		snprintf(value, sizeof(value), "unsupported");
		format_and_print(outf, base_level + 4, header, value);

		if (is_clx_n_platform()) {
		if (ctdp_level->pbf_support)
		_isst_pbf_display_information(cpu, outf,

tools/power/x86/intel-speed-select/isst.h

+6 −0

Original line number	Diff line number	Diff line
		@@ -69,6 +69,10 @@
		#define PM_CLOS_OFFSET 0x08
		#define PQR_ASSOC_OFFSET 0x20

		#define READ_PM_CONFIG 0x94
		#define WRITE_PM_CONFIG 0x95
		#define PM_FEATURE 0x03

		#define DISP_FREQ_MULTIPLIER 100

		struct isst_clos_config {
		@@ -119,6 +123,8 @@ struct isst_pkg_ctdp_level_info {
		int pbf_support;
		int fact_enabled;
		int pbf_enabled;
		int sst_cp_support;
		int sst_cp_enabled;
		int tdp_ratio;
		int active;
		int tdp_control;

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