1 files changed, 505 insertions, 0 deletions
diff --git a/tools/power/x86/intel-speed-select/isst-core.c b/tools/power/x86/intel-speed-select/isst-core.c
new file mode 100644
index 000000000000..e05561d00458
--- /dev/null
+++ b/tools/power/x86/intel-speed-select/isst-core.c
@@ -0,0 +1,505 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Intel Speed Select -- Enumerate and control features
+ * Copyright (c) 2019 Intel Corporation.
+ */
+
+#include "isst.h"
+
+static struct isst_platform_ops		*isst_ops;
+
+#define CHECK_CB(_name)	\
+	do {	\
+		if (!isst_ops || !isst_ops->_name) {	\
+			fprintf(stderr, "Invalid ops\n");	\
+			exit(0);	\
+		}	\
+	} while (0)
+
+int isst_set_platform_ops(int api_version)
+{
+	switch (api_version) {
+	case 1:
+		isst_ops = mbox_get_platform_ops();
+		break;
+	case 2:
+	case 3:
+		isst_ops = tpmi_get_platform_ops();
+		break;
+	default:
+		isst_ops = NULL;
+		break;
+	}
+
+	if (!isst_ops)
+		return -1;
+	return 0;
+}
+
+void isst_update_platform_param(enum isst_platform_param param, int value)
+{
+	CHECK_CB(update_platform_param);
+
+	isst_ops->update_platform_param(param, value);
+}
+
+int isst_get_disp_freq_multiplier(void)
+{
+	CHECK_CB(get_disp_freq_multiplier);
+	return isst_ops->get_disp_freq_multiplier();
+}
+
+int isst_get_trl_max_levels(void)
+{
+	CHECK_CB(get_trl_max_levels);
+	return isst_ops->get_trl_max_levels();
+}
+
+char *isst_get_trl_level_name(int level)
+{
+	CHECK_CB(get_trl_level_name);
+	return isst_ops->get_trl_level_name(level);
+}
+
+int isst_is_punit_valid(struct isst_id *id)
+{
+	CHECK_CB(is_punit_valid);
+	return isst_ops->is_punit_valid(id);
+}
+
+int isst_send_msr_command(unsigned int cpu, unsigned int msr, int write,
+			  unsigned long long *req_resp)
+{
+	struct isst_if_msr_cmds msr_cmds;
+	const char *pathname = "/dev/isst_interface";
+	FILE *outf = get_output_file();
+	int fd;
+
+	fd = open(pathname, O_RDWR);
+	if (fd < 0)
+		err(-1, "%s open failed", pathname);
+
+	msr_cmds.cmd_count = 1;
+	msr_cmds.msr_cmd[0].logical_cpu = cpu;
+	msr_cmds.msr_cmd[0].msr = msr;
+	msr_cmds.msr_cmd[0].read_write = write;
+	if (write)
+		msr_cmds.msr_cmd[0].data = *req_resp;
+
+	if (ioctl(fd, ISST_IF_MSR_COMMAND, &msr_cmds) == -1) {
+		perror("ISST_IF_MSR_COMMAND");
+		fprintf(outf, "Error: msr_cmd cpu:%d msr:%x read_write:%d\n",
+			cpu, msr, write);
+	} else {
+		if (!write)
+			*req_resp = msr_cmds.msr_cmd[0].data;
+
+		debug_printf(
+			"msr_cmd response: cpu:%d msr:%x rd_write:%x resp:%llx %llx\n",
+			cpu, msr, write, *req_resp, msr_cmds.msr_cmd[0].data);
+	}
+
+	close(fd);
+
+	return 0;
+}
+
+int isst_read_pm_config(struct isst_id *id, int *cp_state, int *cp_cap)
+{
+	CHECK_CB(read_pm_config);
+	return isst_ops->read_pm_config(id, cp_state, cp_cap);
+}
+
+int isst_get_ctdp_levels(struct isst_id *id, struct isst_pkg_ctdp *pkg_dev)
+{
+	CHECK_CB(get_config_levels);
+	return isst_ops->get_config_levels(id, pkg_dev);
+}
+
+int isst_get_ctdp_control(struct isst_id *id, int config_index,
+			  struct isst_pkg_ctdp_level_info *ctdp_level)
+{
+	CHECK_CB(get_ctdp_control);
+	return isst_ops->get_ctdp_control(id, config_index, ctdp_level);
+}
+
+int isst_get_tdp_info(struct isst_id *id, int config_index,
+		      struct isst_pkg_ctdp_level_info *ctdp_level)
+{
+	CHECK_CB(get_tdp_info);
+	return isst_ops->get_tdp_info(id, config_index, ctdp_level);
+}
+
+int isst_get_pwr_info(struct isst_id *id, int config_index,
+		      struct isst_pkg_ctdp_level_info *ctdp_level)
+{
+	CHECK_CB(get_pwr_info);
+	return isst_ops->get_pwr_info(id, config_index, ctdp_level);
+}
+
+int isst_get_coremask_info(struct isst_id *id, int config_index,
+			   struct isst_pkg_ctdp_level_info *ctdp_level)
+{
+	CHECK_CB(get_coremask_info);
+	return isst_ops->get_coremask_info(id, config_index, ctdp_level);
+}
+
+int isst_get_get_trl_from_msr(struct isst_id *id, int *trl)
+{
+	unsigned long long msr_trl;
+	int ret;
+
+	ret = isst_send_msr_command(id->cpu, 0x1AD, 0, &msr_trl);
+	if (ret)
+		return ret;
+
+	trl[0] = msr_trl & GENMASK(7, 0);
+	trl[1] = (msr_trl & GENMASK(15, 8)) >> 8;
+	trl[2] = (msr_trl & GENMASK(23, 16)) >> 16;
+	trl[3] = (msr_trl & GENMASK(31, 24)) >> 24;
+	trl[4] = (msr_trl & GENMASK(39, 32)) >> 32;
+	trl[5] = (msr_trl & GENMASK(47, 40)) >> 40;
+	trl[6] = (msr_trl & GENMASK(55, 48)) >> 48;
+	trl[7] = (msr_trl & GENMASK(63, 56)) >> 56;
+
+	return 0;
+}
+
+int isst_get_get_trl(struct isst_id *id, int level, int avx_level, int *trl)
+{
+	CHECK_CB(get_get_trl);
+	return isst_ops->get_get_trl(id, level, avx_level, trl);
+}
+
+int isst_get_get_trls(struct isst_id *id, int level, struct isst_pkg_ctdp_level_info *ctdp_level)
+{
+	CHECK_CB(get_get_trls);
+	return isst_ops->get_get_trls(id, level, ctdp_level);
+}
+
+int isst_get_trl_bucket_info(struct isst_id *id, int level, unsigned long long *buckets_info)
+{
+	CHECK_CB(get_trl_bucket_info);
+	return isst_ops->get_trl_bucket_info(id, level, buckets_info);
+}
+
+int isst_set_tdp_level(struct isst_id *id, int tdp_level)
+{
+	CHECK_CB(set_tdp_level);
+	return isst_ops->set_tdp_level(id, tdp_level);
+}
+
+int isst_get_pbf_info(struct isst_id *id, int level, struct isst_pbf_info *pbf_info)
+{
+	struct isst_pkg_ctdp_level_info ctdp_level;
+	struct isst_pkg_ctdp pkg_dev;
+	int ret;
+
+	ret = isst_get_ctdp_levels(id, &pkg_dev);
+	if (ret) {
+		isst_display_error_info_message(1, "Failed to get number of levels", 0, 0);
+		return ret;
+	}
+
+	if (level > pkg_dev.levels) {
+		isst_display_error_info_message(1, "Invalid level", 1, level);
+		return -1;
+	}
+
+	ret = isst_get_ctdp_control(id, level, &ctdp_level);
+	if (ret)
+		return ret;
+
+	if (!ctdp_level.pbf_support) {
+		isst_display_error_info_message(1, "base-freq feature is not present at this level", 1, level);
+		return -1;
+	}
+
+	pbf_info->core_cpumask_size = alloc_cpu_set(&pbf_info->core_cpumask);
+
+	CHECK_CB(get_pbf_info);
+	return isst_ops->get_pbf_info(id, level, pbf_info);
+}
+
+int isst_set_pbf_fact_status(struct isst_id *id, int pbf, int enable)
+{
+	CHECK_CB(set_pbf_fact_status);
+	return isst_ops->set_pbf_fact_status(id, pbf, enable);
+}
+
+
+
+int isst_get_fact_info(struct isst_id *id, int level, int fact_bucket, struct isst_fact_info *fact_info)
+{
+	struct isst_pkg_ctdp_level_info ctdp_level;
+	struct isst_pkg_ctdp pkg_dev;
+	int ret;
+
+	ret = isst_get_ctdp_levels(id, &pkg_dev);
+	if (ret) {
+		isst_display_error_info_message(1, "Failed to get number of levels", 0, 0);
+		return ret;
+	}
+
+	if (level > pkg_dev.levels) {
+		isst_display_error_info_message(1, "Invalid level", 1, level);
+		return -1;
+	}
+
+	ret = isst_get_ctdp_control(id, level, &ctdp_level);
+	if (ret)
+		return ret;
+
+	if (!ctdp_level.fact_support) {
+		isst_display_error_info_message(1, "turbo-freq feature is not present at this level", 1, level);
+		return -1;
+	}
+	CHECK_CB(get_fact_info);
+	return isst_ops->get_fact_info(id, level, fact_bucket, fact_info);
+}
+
+int isst_get_trl(struct isst_id *id, unsigned long long *trl)
+{
+	int ret;
+
+	ret = isst_send_msr_command(id->cpu, 0x1AD, 0, trl);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+int isst_set_trl(struct isst_id *id, unsigned long long trl)
+{
+	int ret;
+
+	if (!trl)
+		trl = 0xFFFFFFFFFFFFFFFFULL;
+
+	ret = isst_send_msr_command(id->cpu, 0x1AD, 1, &trl);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+#define MSR_TRL_FREQ_MULTIPLIER		100
+
+int isst_set_trl_from_current_tdp(struct isst_id *id, unsigned long long trl)
+{
+	unsigned long long msr_trl;
+	int ret;
+
+	if (id->cpu < 0)
+		return 0;
+
+	if (trl) {
+		msr_trl = trl;
+	} else {
+		struct isst_pkg_ctdp pkg_dev;
+		int trl[8];
+		int i;
+
+		ret = isst_get_ctdp_levels(id, &pkg_dev);
+		if (ret)
+			return ret;
+
+		ret = isst_get_get_trl(id, pkg_dev.current_level, 0, trl);
+		if (ret)
+			return ret;
+
+		msr_trl = 0;
+		for (i = 0; i < 8; ++i) {
+			unsigned long long _trl = trl[i];
+
+			/* MSR is always in 100 MHz unit */
+			if (isst_get_disp_freq_multiplier() == 1)
+				_trl /= MSR_TRL_FREQ_MULTIPLIER;
+
+			msr_trl |= (_trl << (i * 8));
+		}
+	}
+	ret = isst_send_msr_command(id->cpu, 0x1AD, 1, &msr_trl);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+/* Return 1 if locked */
+int isst_get_config_tdp_lock_status(struct isst_id *id)
+{
+	unsigned long long tdp_control = 0;
+	int ret;
+
+	ret = isst_send_msr_command(id->cpu, 0x64b, 0, &tdp_control);
+	if (ret)
+		return ret;
+
+	ret = !!(tdp_control & BIT(31));
+
+	return ret;
+}
+
+void isst_get_process_ctdp_complete(struct isst_id *id, struct isst_pkg_ctdp *pkg_dev)
+{
+	int i;
+
+	if (!pkg_dev->processed)
+		return;
+
+	for (i = 0; i < pkg_dev->levels; ++i) {
+		struct isst_pkg_ctdp_level_info *ctdp_level;
+
+		ctdp_level = &pkg_dev->ctdp_level[i];
+		if (ctdp_level->pbf_support)
+			free_cpu_set(ctdp_level->pbf_info.core_cpumask);
+		free_cpu_set(ctdp_level->core_cpumask);
+	}
+}
+
+void isst_adjust_uncore_freq(struct isst_id *id, int config_index,
+				struct isst_pkg_ctdp_level_info *ctdp_level)
+{
+	CHECK_CB(adjust_uncore_freq);
+	return isst_ops->adjust_uncore_freq(id, config_index, ctdp_level);
+}
+
+int isst_get_process_ctdp(struct isst_id *id, int tdp_level, struct isst_pkg_ctdp *pkg_dev)
+{
+	int i, ret, valid = 0;
+
+	if (pkg_dev->processed)
+		return 0;
+
+	ret = isst_get_ctdp_levels(id, pkg_dev);
+	if (ret)
+		return ret;
+
+	debug_printf("cpu: %d ctdp enable:%d current level: %d levels:%d\n",
+		     id->cpu, pkg_dev->enabled, pkg_dev->current_level,
+		     pkg_dev->levels);
+
+	if (tdp_level != 0xff && tdp_level > pkg_dev->levels) {
+		isst_display_error_info_message(1, "Invalid level", 0, 0);
+		return -1;
+	}
+
+	if (!pkg_dev->enabled)
+		isst_display_error_info_message(0, "perf-profile feature is not supported, just base-config level 0 is valid", 0, 0);
+
+	for (i = 0; i <= pkg_dev->levels; ++i) {
+		struct isst_pkg_ctdp_level_info *ctdp_level;
+
+		if (tdp_level != 0xff && i != tdp_level)
+			continue;
+
+		debug_printf("cpu:%d Get Information for TDP level:%d\n", id->cpu,
+			     i);
+		ctdp_level = &pkg_dev->ctdp_level[i];
+
+		ctdp_level->level = i;
+		ctdp_level->control_cpu = id->cpu;
+		ctdp_level->pkg_id = id->pkg;
+		ctdp_level->die_id = id->die;
+
+		ret = isst_get_ctdp_control(id, i, ctdp_level);
+		if (ret)
+			continue;
+
+		valid = 1;
+		pkg_dev->processed = 1;
+		ctdp_level->processed = 1;
+
+		if (ctdp_level->pbf_support) {
+			ret = isst_get_pbf_info(id, i, &ctdp_level->pbf_info);
+			if (!ret)
+				ctdp_level->pbf_found = 1;
+		}
+
+		if (ctdp_level->fact_support) {
+			ret = isst_get_fact_info(id, i, 0xff,
+						 &ctdp_level->fact_info);
+			if (ret)
+				return ret;
+		}
+
+		if (!pkg_dev->enabled && is_skx_based_platform()) {
+			int freq;
+
+			freq = get_cpufreq_base_freq(id->cpu);
+			if (freq > 0) {
+				ctdp_level->sse_p1 = freq / 100000;
+				ctdp_level->tdp_ratio = ctdp_level->sse_p1;
+			}
+
+			isst_get_get_trl_from_msr(id, ctdp_level->trl_ratios[0]);
+			isst_get_trl_bucket_info(id, i, &ctdp_level->trl_cores);
+			continue;
+		}
+
+		ret = isst_get_tdp_info(id, i, ctdp_level);
+		if (ret)
+			return ret;
+
+		ret = isst_get_pwr_info(id, i, ctdp_level);
+		if (ret)
+			return ret;
+
+		ctdp_level->core_cpumask_size =
+			alloc_cpu_set(&ctdp_level->core_cpumask);
+		ret = isst_get_coremask_info(id, i, ctdp_level);
+		if (ret)
+			return ret;
+
+		ret = isst_get_trl_bucket_info(id, i, &ctdp_level->trl_cores);
+		if (ret)
+			return ret;
+
+		ret = isst_get_get_trls(id, i, ctdp_level);
+		if (ret)
+			return ret;
+	}
+
+	if (!valid)
+		isst_display_error_info_message(0, "Invalid level, Can't get TDP control information at specified levels on cpu", 1, id->cpu);
+
+	return 0;
+}
+
+int isst_clos_get_clos_information(struct isst_id *id, int *enable, int *type)
+{
+	CHECK_CB(get_clos_information);
+	return isst_ops->get_clos_information(id, enable, type);
+}
+
+int isst_pm_qos_config(struct isst_id *id, int enable_clos, int priority_type)
+{
+	CHECK_CB(pm_qos_config);
+	return isst_ops->pm_qos_config(id, enable_clos, priority_type);
+}
+
+int isst_pm_get_clos(struct isst_id *id, int clos, struct isst_clos_config *clos_config)
+{
+	CHECK_CB(pm_get_clos);
+	return isst_ops->pm_get_clos(id, clos, clos_config);
+}
+
+int isst_set_clos(struct isst_id *id, int clos, struct isst_clos_config *clos_config)
+{
+	CHECK_CB(set_clos);
+	return isst_ops->set_clos(id, clos, clos_config);
+}
+
+int isst_clos_get_assoc_status(struct isst_id *id, int *clos_id)
+{
+	CHECK_CB(clos_get_assoc_status);
+	return isst_ops->clos_get_assoc_status(id, clos_id);
+}
+
+int isst_clos_associate(struct isst_id *id, int clos_id)
+{
+	CHECK_CB(clos_associate);
+	return isst_ops->clos_associate(id, clos_id);
+
+}