summaryrefslogtreecommitdiffstats
path: root/tools/power/x86/intel-speed-select/isst-config.c
diff options
context:
space:
mode:
Diffstat (limited to 'tools/power/x86/intel-speed-select/isst-config.c')
-rw-r--r--tools/power/x86/intel-speed-select/isst-config.c2802
1 files changed, 2802 insertions, 0 deletions
diff --git a/tools/power/x86/intel-speed-select/isst-config.c b/tools/power/x86/intel-speed-select/isst-config.c
new file mode 100644
index 000000000..ead9e51f7
--- /dev/null
+++ b/tools/power/x86/intel-speed-select/isst-config.c
@@ -0,0 +1,2802 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Intel Speed Select -- Enumerate and control features
+ * Copyright (c) 2019 Intel Corporation.
+ */
+
+#include <linux/isst_if.h>
+
+#include "isst.h"
+
+struct process_cmd_struct {
+ char *feature;
+ char *command;
+ void (*process_fn)(int arg);
+ int arg;
+};
+
+static const char *version_str = "v1.6";
+static const int supported_api_ver = 1;
+static struct isst_if_platform_info isst_platform_info;
+static char *progname;
+static int debug_flag;
+static FILE *outf;
+
+static int cpu_model;
+static int cpu_stepping;
+
+#define MAX_CPUS_IN_ONE_REQ 256
+static short max_target_cpus;
+static unsigned short target_cpus[MAX_CPUS_IN_ONE_REQ];
+
+static int topo_max_cpus;
+static size_t present_cpumask_size;
+static cpu_set_t *present_cpumask;
+static size_t target_cpumask_size;
+static cpu_set_t *target_cpumask;
+static int tdp_level = 0xFF;
+static int fact_bucket = 0xFF;
+static int fact_avx = 0xFF;
+static unsigned long long fact_trl;
+static int out_format_json;
+static int cmd_help;
+static int force_online_offline;
+static int auto_mode;
+static int fact_enable_fail;
+
+static int mbox_delay;
+static int mbox_retries = 3;
+
+/* clos related */
+static int current_clos = -1;
+static int clos_epp = -1;
+static int clos_prop_prio = -1;
+static int clos_min = -1;
+static int clos_max = -1;
+static int clos_desired = -1;
+static int clos_priority_type;
+
+struct _cpu_map {
+ unsigned short core_id;
+ unsigned short pkg_id;
+ unsigned short die_id;
+ unsigned short punit_cpu;
+ unsigned short punit_cpu_core;
+};
+struct _cpu_map *cpu_map;
+
+struct cpu_topology {
+ short cpu;
+ short core_id;
+ short pkg_id;
+ short die_id;
+};
+
+FILE *get_output_file(void)
+{
+ return outf;
+}
+
+void debug_printf(const char *format, ...)
+{
+ va_list args;
+
+ va_start(args, format);
+
+ if (debug_flag)
+ vprintf(format, args);
+
+ va_end(args);
+}
+
+
+int is_clx_n_platform(void)
+{
+ if (cpu_model == 0x55)
+ if (cpu_stepping == 0x6 || cpu_stepping == 0x7)
+ return 1;
+ return 0;
+}
+
+int is_skx_based_platform(void)
+{
+ if (cpu_model == 0x55)
+ return 1;
+
+ return 0;
+}
+
+static int update_cpu_model(void)
+{
+ unsigned int ebx, ecx, edx;
+ unsigned int fms, family;
+
+ __cpuid(1, fms, ebx, ecx, edx);
+ family = (fms >> 8) & 0xf;
+ cpu_model = (fms >> 4) & 0xf;
+ if (family == 6 || family == 0xf)
+ cpu_model += ((fms >> 16) & 0xf) << 4;
+
+ cpu_stepping = fms & 0xf;
+ /* only three CascadeLake-N models are supported */
+ if (is_clx_n_platform()) {
+ FILE *fp;
+ size_t n = 0;
+ char *line = NULL;
+ int ret = 1;
+
+ fp = fopen("/proc/cpuinfo", "r");
+ if (!fp)
+ err(-1, "cannot open /proc/cpuinfo\n");
+
+ while (getline(&line, &n, fp) > 0) {
+ if (strstr(line, "model name")) {
+ if (strstr(line, "6252N") ||
+ strstr(line, "6230N") ||
+ strstr(line, "5218N"))
+ ret = 0;
+ break;
+ }
+ }
+ free(line);
+ fclose(fp);
+ return ret;
+ }
+ return 0;
+}
+
+/* Open a file, and exit on failure */
+static FILE *fopen_or_exit(const char *path, const char *mode)
+{
+ FILE *filep = fopen(path, mode);
+
+ if (!filep)
+ err(1, "%s: open failed", path);
+
+ return filep;
+}
+
+/* Parse a file containing a single int */
+static int parse_int_file(int fatal, const char *fmt, ...)
+{
+ va_list args;
+ char path[PATH_MAX];
+ FILE *filep;
+ int value;
+
+ va_start(args, fmt);
+ vsnprintf(path, sizeof(path), fmt, args);
+ va_end(args);
+ if (fatal) {
+ filep = fopen_or_exit(path, "r");
+ } else {
+ filep = fopen(path, "r");
+ if (!filep)
+ return -1;
+ }
+ if (fscanf(filep, "%d", &value) != 1)
+ err(1, "%s: failed to parse number from file", path);
+ fclose(filep);
+
+ return value;
+}
+
+int cpufreq_sysfs_present(void)
+{
+ DIR *dir;
+
+ dir = opendir("/sys/devices/system/cpu/cpu0/cpufreq");
+ if (dir) {
+ closedir(dir);
+ return 1;
+ }
+
+ return 0;
+}
+
+int out_format_is_json(void)
+{
+ return out_format_json;
+}
+
+static int get_stored_topology_info(int cpu, int *core_id, int *pkg_id, int *die_id)
+{
+ const char *pathname = "/var/run/isst_cpu_topology.dat";
+ struct cpu_topology cpu_top;
+ FILE *fp;
+ int ret;
+
+ fp = fopen(pathname, "rb");
+ if (!fp)
+ return -1;
+
+ ret = fseek(fp, cpu * sizeof(cpu_top), SEEK_SET);
+ if (ret)
+ goto err_ret;
+
+ ret = fread(&cpu_top, sizeof(cpu_top), 1, fp);
+ if (ret != 1) {
+ ret = -1;
+ goto err_ret;
+ }
+
+ *pkg_id = cpu_top.pkg_id;
+ *core_id = cpu_top.core_id;
+ *die_id = cpu_top.die_id;
+ ret = 0;
+
+err_ret:
+ fclose(fp);
+
+ return ret;
+}
+
+static void store_cpu_topology(void)
+{
+ const char *pathname = "/var/run/isst_cpu_topology.dat";
+ FILE *fp;
+ int i;
+
+ fp = fopen(pathname, "rb");
+ if (fp) {
+ /* Mapping already exists */
+ fclose(fp);
+ return;
+ }
+
+ fp = fopen(pathname, "wb");
+ if (!fp) {
+ fprintf(stderr, "Can't create file:%s\n", pathname);
+ return;
+ }
+
+ fprintf(stderr, "Caching topology information\n");
+
+ for (i = 0; i < topo_max_cpus; ++i) {
+ struct cpu_topology cpu_top;
+
+ cpu_top.core_id = parse_int_file(0,
+ "/sys/devices/system/cpu/cpu%d/topology/core_id", i);
+ if (cpu_top.core_id < 0)
+ cpu_top.core_id = -1;
+
+ cpu_top.pkg_id = parse_int_file(0,
+ "/sys/devices/system/cpu/cpu%d/topology/physical_package_id", i);
+ if (cpu_top.pkg_id < 0)
+ cpu_top.pkg_id = -1;
+
+ cpu_top.die_id = parse_int_file(0,
+ "/sys/devices/system/cpu/cpu%d/topology/die_id", i);
+ if (cpu_top.die_id < 0)
+ cpu_top.die_id = -1;
+
+ cpu_top.cpu = i;
+
+ if (fwrite(&cpu_top, sizeof(cpu_top), 1, fp) != 1) {
+ fprintf(stderr, "Can't write to:%s\n", pathname);
+ break;
+ }
+ }
+
+ fclose(fp);
+}
+
+int get_physical_package_id(int cpu)
+{
+ int ret;
+
+ ret = parse_int_file(0,
+ "/sys/devices/system/cpu/cpu%d/topology/physical_package_id",
+ cpu);
+ if (ret < 0) {
+ int core_id, pkg_id, die_id;
+
+ ret = get_stored_topology_info(cpu, &core_id, &pkg_id, &die_id);
+ if (!ret)
+ return pkg_id;
+ }
+
+ return ret;
+}
+
+int get_physical_core_id(int cpu)
+{
+ int ret;
+
+ ret = parse_int_file(0,
+ "/sys/devices/system/cpu/cpu%d/topology/core_id",
+ cpu);
+ if (ret < 0) {
+ int core_id, pkg_id, die_id;
+
+ ret = get_stored_topology_info(cpu, &core_id, &pkg_id, &die_id);
+ if (!ret)
+ return core_id;
+ }
+
+ return ret;
+}
+
+int get_physical_die_id(int cpu)
+{
+ int ret;
+
+ ret = parse_int_file(0,
+ "/sys/devices/system/cpu/cpu%d/topology/die_id",
+ cpu);
+ if (ret < 0) {
+ int core_id, pkg_id, die_id;
+
+ ret = get_stored_topology_info(cpu, &core_id, &pkg_id, &die_id);
+ if (!ret)
+ return die_id;
+ }
+
+ if (ret < 0)
+ ret = 0;
+
+ return ret;
+}
+
+int get_cpufreq_base_freq(int cpu)
+{
+ return parse_int_file(0, "/sys/devices/system/cpu/cpu%d/cpufreq/base_frequency", cpu);
+}
+
+int get_topo_max_cpus(void)
+{
+ return topo_max_cpus;
+}
+
+static void set_cpu_online_offline(int cpu, int state)
+{
+ char buffer[128];
+ int fd, ret;
+
+ snprintf(buffer, sizeof(buffer),
+ "/sys/devices/system/cpu/cpu%d/online", cpu);
+
+ fd = open(buffer, O_WRONLY);
+ if (fd < 0) {
+ if (!cpu && state) {
+ fprintf(stderr, "This system is not configured for CPU 0 online/offline\n");
+ fprintf(stderr, "Ignoring online request for CPU 0 as this is already online\n");
+ return;
+ }
+ err(-1, "%s open failed", buffer);
+ }
+
+ if (state)
+ ret = write(fd, "1\n", 2);
+ else
+ ret = write(fd, "0\n", 2);
+
+ if (ret == -1)
+ perror("Online/Offline: Operation failed\n");
+
+ close(fd);
+}
+
+#define MAX_PACKAGE_COUNT 8
+#define MAX_DIE_PER_PACKAGE 2
+static void for_each_online_package_in_set(void (*callback)(int, void *, void *,
+ void *, void *),
+ void *arg1, void *arg2, void *arg3,
+ void *arg4)
+{
+ int max_packages[MAX_PACKAGE_COUNT * MAX_PACKAGE_COUNT];
+ int pkg_index = 0, i;
+
+ memset(max_packages, 0xff, sizeof(max_packages));
+ for (i = 0; i < topo_max_cpus; ++i) {
+ int j, online, pkg_id, die_id = 0, skip = 0;
+
+ if (!CPU_ISSET_S(i, present_cpumask_size, present_cpumask))
+ continue;
+ if (i)
+ online = parse_int_file(
+ 1, "/sys/devices/system/cpu/cpu%d/online", i);
+ else
+ online =
+ 1; /* online entry for CPU 0 needs some special configs */
+
+ die_id = get_physical_die_id(i);
+ if (die_id < 0)
+ die_id = 0;
+
+ pkg_id = parse_int_file(0,
+ "/sys/devices/system/cpu/cpu%d/topology/physical_package_id", i);
+ if (pkg_id < 0)
+ continue;
+
+ /* Create an unique id for package, die combination to store */
+ pkg_id = (MAX_PACKAGE_COUNT * pkg_id + die_id);
+
+ for (j = 0; j < pkg_index; ++j) {
+ if (max_packages[j] == pkg_id) {
+ skip = 1;
+ break;
+ }
+ }
+
+ if (!skip && online && callback) {
+ callback(i, arg1, arg2, arg3, arg4);
+ max_packages[pkg_index++] = pkg_id;
+ }
+ }
+}
+
+static void for_each_online_target_cpu_in_set(
+ void (*callback)(int, void *, void *, void *, void *), void *arg1,
+ void *arg2, void *arg3, void *arg4)
+{
+ int i, found = 0;
+
+ for (i = 0; i < topo_max_cpus; ++i) {
+ int online;
+
+ if (!CPU_ISSET_S(i, target_cpumask_size, target_cpumask))
+ continue;
+ if (i)
+ online = parse_int_file(
+ 1, "/sys/devices/system/cpu/cpu%d/online", i);
+ else
+ online =
+ 1; /* online entry for CPU 0 needs some special configs */
+
+ if (online && callback) {
+ callback(i, arg1, arg2, arg3, arg4);
+ found = 1;
+ }
+ }
+
+ if (!found)
+ fprintf(stderr, "No valid CPU in the list\n");
+}
+
+#define BITMASK_SIZE 32
+static void set_max_cpu_num(void)
+{
+ FILE *filep;
+ unsigned long dummy;
+ int i;
+
+ topo_max_cpus = 0;
+ for (i = 0; i < 256; ++i) {
+ char path[256];
+
+ snprintf(path, sizeof(path),
+ "/sys/devices/system/cpu/cpu%d/topology/thread_siblings", i);
+ filep = fopen(path, "r");
+ if (filep)
+ break;
+ }
+
+ if (!filep) {
+ fprintf(stderr, "Can't get max cpu number\n");
+ exit(0);
+ }
+
+ while (fscanf(filep, "%lx,", &dummy) == 1)
+ topo_max_cpus += BITMASK_SIZE;
+ fclose(filep);
+
+ debug_printf("max cpus %d\n", topo_max_cpus);
+}
+
+size_t alloc_cpu_set(cpu_set_t **cpu_set)
+{
+ cpu_set_t *_cpu_set;
+ size_t size;
+
+ _cpu_set = CPU_ALLOC((topo_max_cpus + 1));
+ if (_cpu_set == NULL)
+ err(3, "CPU_ALLOC");
+ size = CPU_ALLOC_SIZE((topo_max_cpus + 1));
+ CPU_ZERO_S(size, _cpu_set);
+
+ *cpu_set = _cpu_set;
+ return size;
+}
+
+void free_cpu_set(cpu_set_t *cpu_set)
+{
+ CPU_FREE(cpu_set);
+}
+
+static int cpu_cnt[MAX_PACKAGE_COUNT][MAX_DIE_PER_PACKAGE];
+static long long core_mask[MAX_PACKAGE_COUNT][MAX_DIE_PER_PACKAGE];
+static void set_cpu_present_cpu_mask(void)
+{
+ size_t size;
+ DIR *dir;
+ int i;
+
+ size = alloc_cpu_set(&present_cpumask);
+ present_cpumask_size = size;
+ for (i = 0; i < topo_max_cpus; ++i) {
+ char buffer[256];
+
+ snprintf(buffer, sizeof(buffer),
+ "/sys/devices/system/cpu/cpu%d", i);
+ dir = opendir(buffer);
+ if (dir) {
+ int pkg_id, die_id;
+
+ CPU_SET_S(i, size, present_cpumask);
+ die_id = get_physical_die_id(i);
+ if (die_id < 0)
+ die_id = 0;
+
+ pkg_id = get_physical_package_id(i);
+ if (pkg_id < 0) {
+ fprintf(stderr, "Failed to get package id, CPU %d may be offline\n", i);
+ continue;
+ }
+ if (pkg_id < MAX_PACKAGE_COUNT &&
+ die_id < MAX_DIE_PER_PACKAGE) {
+ int core_id = get_physical_core_id(i);
+
+ cpu_cnt[pkg_id][die_id]++;
+ core_mask[pkg_id][die_id] |= (1ULL << core_id);
+ }
+ }
+ closedir(dir);
+ }
+}
+
+int get_max_punit_core_id(int pkg_id, int die_id)
+{
+ int max_id = 0;
+ int i;
+
+ for (i = 0; i < topo_max_cpus; ++i)
+ {
+ if (!CPU_ISSET_S(i, present_cpumask_size, present_cpumask))
+ continue;
+
+ if (cpu_map[i].pkg_id == pkg_id &&
+ cpu_map[i].die_id == die_id &&
+ cpu_map[i].punit_cpu_core > max_id)
+ max_id = cpu_map[i].punit_cpu_core;
+ }
+
+ return max_id;
+}
+
+int get_cpu_count(int pkg_id, int die_id)
+{
+ if (pkg_id < MAX_PACKAGE_COUNT && die_id < MAX_DIE_PER_PACKAGE)
+ return cpu_cnt[pkg_id][die_id];
+
+ return 0;
+}
+
+static void set_cpu_target_cpu_mask(void)
+{
+ size_t size;
+ int i;
+
+ size = alloc_cpu_set(&target_cpumask);
+ target_cpumask_size = size;
+ for (i = 0; i < max_target_cpus; ++i) {
+ if (!CPU_ISSET_S(target_cpus[i], present_cpumask_size,
+ present_cpumask))
+ continue;
+
+ CPU_SET_S(target_cpus[i], size, target_cpumask);
+ }
+}
+
+static void create_cpu_map(void)
+{
+ const char *pathname = "/dev/isst_interface";
+ int i, fd = 0;
+ struct isst_if_cpu_maps map;
+
+ cpu_map = malloc(sizeof(*cpu_map) * topo_max_cpus);
+ if (!cpu_map)
+ err(3, "cpumap");
+
+ fd = open(pathname, O_RDWR);
+ if (fd < 0)
+ err(-1, "%s open failed", pathname);
+
+ for (i = 0; i < topo_max_cpus; ++i) {
+ if (!CPU_ISSET_S(i, present_cpumask_size, present_cpumask))
+ continue;
+
+ map.cmd_count = 1;
+ map.cpu_map[0].logical_cpu = i;
+
+ debug_printf(" map logical_cpu:%d\n",
+ map.cpu_map[0].logical_cpu);
+ if (ioctl(fd, ISST_IF_GET_PHY_ID, &map) == -1) {
+ perror("ISST_IF_GET_PHY_ID");
+ fprintf(outf, "Error: map logical_cpu:%d\n",
+ map.cpu_map[0].logical_cpu);
+ continue;
+ }
+ cpu_map[i].core_id = get_physical_core_id(i);
+ cpu_map[i].pkg_id = get_physical_package_id(i);
+ cpu_map[i].die_id = get_physical_die_id(i);
+ cpu_map[i].punit_cpu = map.cpu_map[0].physical_cpu;
+ cpu_map[i].punit_cpu_core = (map.cpu_map[0].physical_cpu >>
+ 1); // shift to get core id
+
+ debug_printf(
+ "map logical_cpu:%d core: %d die:%d pkg:%d punit_cpu:%d punit_core:%d\n",
+ i, cpu_map[i].core_id, cpu_map[i].die_id,
+ cpu_map[i].pkg_id, cpu_map[i].punit_cpu,
+ cpu_map[i].punit_cpu_core);
+ }
+
+ if (fd)
+ close(fd);
+}
+
+int find_logical_cpu(int pkg_id, int die_id, int punit_core_id)
+{
+ int i;
+
+ for (i = 0; i < topo_max_cpus; ++i) {
+ if (cpu_map[i].pkg_id == pkg_id &&
+ cpu_map[i].die_id == die_id &&
+ cpu_map[i].punit_cpu_core == punit_core_id)
+ return i;
+ }
+
+ return -EINVAL;
+}
+
+void set_cpu_mask_from_punit_coremask(int cpu, unsigned long long core_mask,
+ size_t core_cpumask_size,
+ cpu_set_t *core_cpumask, int *cpu_cnt)
+{
+ int i, cnt = 0;
+ int die_id, pkg_id;
+
+ *cpu_cnt = 0;
+ die_id = get_physical_die_id(cpu);
+ pkg_id = get_physical_package_id(cpu);
+
+ for (i = 0; i < 64; ++i) {
+ if (core_mask & BIT_ULL(i)) {
+ int j;
+
+ for (j = 0; j < topo_max_cpus; ++j) {
+ if (!CPU_ISSET_S(j, present_cpumask_size, present_cpumask))
+ continue;
+
+ if (cpu_map[j].pkg_id == pkg_id &&
+ cpu_map[j].die_id == die_id &&
+ cpu_map[j].punit_cpu_core == i) {
+ CPU_SET_S(j, core_cpumask_size,
+ core_cpumask);
+ ++cnt;
+ }
+ }
+ }
+ }
+
+ *cpu_cnt = cnt;
+}
+
+int find_phy_core_num(int logical_cpu)
+{
+ if (logical_cpu < topo_max_cpus)
+ return cpu_map[logical_cpu].punit_cpu_core;
+
+ return -EINVAL;
+}
+
+static int isst_send_mmio_command(unsigned int cpu, unsigned int reg, int write,
+ unsigned int *value)
+{
+ struct isst_if_io_regs io_regs;
+ const char *pathname = "/dev/isst_interface";
+ int cmd;
+ int fd;
+
+ debug_printf("mmio_cmd cpu:%d reg:%d write:%d\n", cpu, reg, write);
+
+ fd = open(pathname, O_RDWR);
+ if (fd < 0)
+ err(-1, "%s open failed", pathname);
+
+ io_regs.req_count = 1;
+ io_regs.io_reg[0].logical_cpu = cpu;
+ io_regs.io_reg[0].reg = reg;
+ cmd = ISST_IF_IO_CMD;
+ if (write) {
+ io_regs.io_reg[0].read_write = 1;
+ io_regs.io_reg[0].value = *value;
+ } else {
+ io_regs.io_reg[0].read_write = 0;
+ }
+
+ if (ioctl(fd, cmd, &io_regs) == -1) {
+ if (errno == ENOTTY) {
+ perror("ISST_IF_IO_COMMAND\n");
+ fprintf(stderr, "Check presence of kernel modules: isst_if_mmio\n");
+ exit(0);
+ }
+ fprintf(outf, "Error: mmio_cmd cpu:%d reg:%x read_write:%x\n",
+ cpu, reg, write);
+ } else {
+ if (!write)
+ *value = io_regs.io_reg[0].value;
+
+ debug_printf(
+ "mmio_cmd response: cpu:%d reg:%x rd_write:%x resp:%x\n",
+ cpu, reg, write, *value);
+ }
+
+ close(fd);
+
+ return 0;
+}
+
+int isst_send_mbox_command(unsigned int cpu, unsigned char command,
+ unsigned char sub_command, unsigned int parameter,
+ unsigned int req_data, unsigned int *resp)
+{
+ const char *pathname = "/dev/isst_interface";
+ int fd, retry;
+ struct isst_if_mbox_cmds mbox_cmds = { 0 };
+
+ debug_printf(
+ "mbox_send: cpu:%d command:%x sub_command:%x parameter:%x req_data:%x\n",
+ cpu, command, sub_command, parameter, req_data);
+
+ if (!is_skx_based_platform() && command == CONFIG_CLOS &&
+ sub_command != CLOS_PM_QOS_CONFIG) {
+ unsigned int value;
+ int write = 0;
+ int clos_id, core_id, ret = 0;
+
+ debug_printf("CPU %d\n", cpu);
+
+ if (parameter & BIT(MBOX_CMD_WRITE_BIT)) {
+ value = req_data;
+ write = 1;
+ }
+
+ switch (sub_command) {
+ case CLOS_PQR_ASSOC:
+ core_id = parameter & 0xff;
+ ret = isst_send_mmio_command(
+ cpu, PQR_ASSOC_OFFSET + core_id * 4, write,
+ &value);
+ if (!ret && !write)
+ *resp = value;
+ break;
+ case CLOS_PM_CLOS:
+ clos_id = parameter & 0x03;
+ ret = isst_send_mmio_command(
+ cpu, PM_CLOS_OFFSET + clos_id * 4, write,
+ &value);
+ if (!ret && !write)
+ *resp = value;
+ break;
+ case CLOS_STATUS:
+ break;
+ default:
+ break;
+ }
+ return ret;
+ }
+
+ mbox_cmds.cmd_count = 1;
+ mbox_cmds.mbox_cmd[0].logical_cpu = cpu;
+ mbox_cmds.mbox_cmd[0].command = command;
+ mbox_cmds.mbox_cmd[0].sub_command = sub_command;
+ mbox_cmds.mbox_cmd[0].parameter = parameter;
+ mbox_cmds.mbox_cmd[0].req_data = req_data;
+
+ if (mbox_delay)
+ usleep(mbox_delay * 1000);
+
+ fd = open(pathname, O_RDWR);
+ if (fd < 0)
+ err(-1, "%s open failed", pathname);
+
+ retry = mbox_retries;
+
+ do {
+ if (ioctl(fd, ISST_IF_MBOX_COMMAND, &mbox_cmds) == -1) {
+ if (errno == ENOTTY) {
+ perror("ISST_IF_MBOX_COMMAND\n");
+ fprintf(stderr, "Check presence of kernel modules: isst_if_mbox_pci or isst_if_mbox_msr\n");
+ exit(0);
+ }
+ debug_printf(
+ "Error: mbox_cmd cpu:%d command:%x sub_command:%x parameter:%x req_data:%x errorno:%d\n",
+ cpu, command, sub_command, parameter, req_data, errno);
+ --retry;
+ } else {
+ *resp = mbox_cmds.mbox_cmd[0].resp_data;
+ debug_printf(
+ "mbox_cmd response: cpu:%d command:%x sub_command:%x parameter:%x req_data:%x resp:%x\n",
+ cpu, command, sub_command, parameter, req_data, *resp);
+ break;
+ }
+ } while (retry);
+
+ close(fd);
+
+ if (!retry) {
+ debug_printf("Failed mbox command even after retries\n");
+ return -1;
+
+ }
+ return 0;
+}
+
+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";
+ 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;
+}
+
+static int isst_fill_platform_info(void)
+{
+ const char *pathname = "/dev/isst_interface";
+ int fd;
+
+ fd = open(pathname, O_RDWR);
+ if (fd < 0)
+ err(-1, "%s open failed", pathname);
+
+ if (ioctl(fd, ISST_IF_GET_PLATFORM_INFO, &isst_platform_info) == -1) {
+ perror("ISST_IF_GET_PLATFORM_INFO");
+ close(fd);
+ return -1;
+ }
+
+ close(fd);
+
+ if (isst_platform_info.api_version > supported_api_ver) {
+ printf("Incompatible API versions; Upgrade of tool is required\n");
+ return -1;
+ }
+ return 0;
+}
+
+static void isst_print_extended_platform_info(void)
+{
+ int cp_state, cp_cap, fact_support = 0, pbf_support = 0;
+ struct isst_pkg_ctdp_level_info ctdp_level;
+ struct isst_pkg_ctdp pkg_dev;
+ int ret, i, j;
+ FILE *filep;
+
+ for (i = 0; i < 256; ++i) {
+ char path[256];
+
+ snprintf(path, sizeof(path),
+ "/sys/devices/system/cpu/cpu%d/topology/thread_siblings", i);
+ filep = fopen(path, "r");
+ if (filep)
+ break;
+ }
+
+ if (!filep)
+ return;
+
+ fclose(filep);
+
+ ret = isst_get_ctdp_levels(i, &pkg_dev);
+ if (ret)
+ return;
+
+ if (pkg_dev.enabled) {
+ fprintf(outf, "Intel(R) SST-PP (feature perf-profile) is supported\n");
+ } else {
+ fprintf(outf, "Intel(R) SST-PP (feature perf-profile) is not supported\n");
+ fprintf(outf, "Only performance level 0 (base level) is present\n");
+ }
+
+ if (pkg_dev.locked)
+ fprintf(outf, "TDP level change control is locked\n");
+ else
+ fprintf(outf, "TDP level change control is unlocked, max level: %d \n", pkg_dev.levels);
+
+ for (j = 0; j <= pkg_dev.levels; ++j) {
+ ret = isst_get_ctdp_control(i, j, &ctdp_level);
+ if (ret)
+ continue;
+
+ if (!fact_support && ctdp_level.fact_support)
+ fact_support = 1;
+
+ if (!pbf_support && ctdp_level.pbf_support)
+ pbf_support = 1;
+ }
+
+ if (fact_support)
+ fprintf(outf, "Intel(R) SST-TF (feature turbo-freq) is supported\n");
+ else
+ fprintf(outf, "Intel(R) SST-TF (feature turbo-freq) is not supported\n");
+
+ if (pbf_support)
+ fprintf(outf, "Intel(R) SST-BF (feature base-freq) is supported\n");
+ else
+ fprintf(outf, "Intel(R) SST-BF (feature base-freq) is not supported\n");
+
+ ret = isst_read_pm_config(i, &cp_state, &cp_cap);
+ if (cp_cap)
+ fprintf(outf, "Intel(R) SST-CP (feature core-power) is supported\n");
+ else
+ fprintf(outf, "Intel(R) SST-CP (feature core-power) is not supported\n");
+}
+
+static void isst_print_platform_information(void)
+{
+ struct isst_if_platform_info platform_info;
+ const char *pathname = "/dev/isst_interface";
+ int fd;
+
+ if (is_clx_n_platform()) {
+ fprintf(stderr, "\nThis option in not supported on this platform\n");
+ exit(0);
+ }
+
+ fd = open(pathname, O_RDWR);
+ if (fd < 0)
+ err(-1, "%s open failed", pathname);
+
+ if (ioctl(fd, ISST_IF_GET_PLATFORM_INFO, &platform_info) == -1) {
+ perror("ISST_IF_GET_PLATFORM_INFO");
+ } else {
+ fprintf(outf, "Platform: API version : %d\n",
+ platform_info.api_version);
+ fprintf(outf, "Platform: Driver version : %d\n",
+ platform_info.driver_version);
+ fprintf(outf, "Platform: mbox supported : %d\n",
+ platform_info.mbox_supported);
+ fprintf(outf, "Platform: mmio supported : %d\n",
+ platform_info.mmio_supported);
+ isst_print_extended_platform_info();
+ }
+
+ close(fd);
+
+ exit(0);
+}
+
+static char *local_str0, *local_str1;
+static void exec_on_get_ctdp_cpu(int cpu, void *arg1, void *arg2, void *arg3,
+ void *arg4)
+{
+ int (*fn_ptr)(int cpu, void *arg);
+ int ret;
+
+ fn_ptr = arg1;
+ ret = fn_ptr(cpu, arg2);
+ if (ret)
+ isst_display_error_info_message(1, "get_tdp_* failed", 0, 0);
+ else
+ isst_ctdp_display_core_info(cpu, outf, arg3,
+ *(unsigned int *)arg4,
+ local_str0, local_str1);
+}
+
+#define _get_tdp_level(desc, suffix, object, help, str0, str1) \
+ static void get_tdp_##object(int arg) \
+ { \
+ struct isst_pkg_ctdp ctdp; \
+\
+ if (cmd_help) { \
+ fprintf(stderr, \
+ "Print %s [No command arguments are required]\n", \
+ help); \
+ exit(0); \
+ } \
+ local_str0 = str0; \
+ local_str1 = str1; \
+ isst_ctdp_display_information_start(outf); \
+ if (max_target_cpus) \
+ for_each_online_target_cpu_in_set( \
+ exec_on_get_ctdp_cpu, isst_get_ctdp_##suffix, \
+ &ctdp, desc, &ctdp.object); \
+ else \
+ for_each_online_package_in_set(exec_on_get_ctdp_cpu, \
+ isst_get_ctdp_##suffix, \
+ &ctdp, desc, \
+ &ctdp.object); \
+ isst_ctdp_display_information_end(outf); \
+ }
+
+_get_tdp_level("get-config-levels", levels, levels, "Max TDP level", NULL, NULL);
+_get_tdp_level("get-config-version", levels, version, "TDP version", NULL, NULL);
+_get_tdp_level("get-config-enabled", levels, enabled, "perf-profile enable status", "disabled", "enabled");
+_get_tdp_level("get-config-current_level", levels, current_level,
+ "Current TDP Level", NULL, NULL);
+_get_tdp_level("get-lock-status", levels, locked, "TDP lock status", "unlocked", "locked");
+
+struct isst_pkg_ctdp clx_n_pkg_dev;
+
+static int clx_n_get_base_ratio(void)
+{
+ FILE *fp;
+ char *begin, *end, *line = NULL;
+ char number[5];
+ float value = 0;
+ size_t n = 0;
+
+ fp = fopen("/proc/cpuinfo", "r");
+ if (!fp)
+ err(-1, "cannot open /proc/cpuinfo\n");
+
+ while (getline(&line, &n, fp) > 0) {
+ if (strstr(line, "model name")) {
+ /* this is true for CascadeLake-N */
+ begin = strstr(line, "@ ") + 2;
+ end = strstr(line, "GHz");
+ strncpy(number, begin, end - begin);
+ value = atof(number) * 10;
+ break;
+ }
+ }
+ free(line);
+ fclose(fp);
+
+ return (int)(value);
+}
+
+static int clx_n_config(int cpu)
+{
+ int i, ret, pkg_id, die_id;
+ unsigned long cpu_bf;
+ struct isst_pkg_ctdp_level_info *ctdp_level;
+ struct isst_pbf_info *pbf_info;
+
+ ctdp_level = &clx_n_pkg_dev.ctdp_level[0];
+ pbf_info = &ctdp_level->pbf_info;
+ ctdp_level->core_cpumask_size =
+ alloc_cpu_set(&ctdp_level->core_cpumask);
+
+ /* find the frequency base ratio */
+ ctdp_level->tdp_ratio = clx_n_get_base_ratio();
+ if (ctdp_level->tdp_ratio == 0) {
+ debug_printf("CLX: cn base ratio is zero\n");
+ ret = -1;
+ goto error_ret;
+ }
+
+ /* find the high and low priority frequencies */
+ pbf_info->p1_high = 0;
+ pbf_info->p1_low = ~0;
+
+ pkg_id = get_physical_package_id(cpu);
+ die_id = get_physical_die_id(cpu);
+
+ for (i = 0; i < topo_max_cpus; i++) {
+ if (!CPU_ISSET_S(i, present_cpumask_size, present_cpumask))
+ continue;
+
+ if (pkg_id != get_physical_package_id(i) ||
+ die_id != get_physical_die_id(i))
+ continue;
+
+ CPU_SET_S(i, ctdp_level->core_cpumask_size,
+ ctdp_level->core_cpumask);
+
+ cpu_bf = parse_int_file(1,
+ "/sys/devices/system/cpu/cpu%d/cpufreq/base_frequency",
+ i);
+ if (cpu_bf > pbf_info->p1_high)
+ pbf_info->p1_high = cpu_bf;
+ if (cpu_bf < pbf_info->p1_low)
+ pbf_info->p1_low = cpu_bf;
+ }
+
+ if (pbf_info->p1_high == ~0UL) {
+ debug_printf("CLX: maximum base frequency not set\n");
+ ret = -1;
+ goto error_ret;
+ }
+
+ if (pbf_info->p1_low == 0) {
+ debug_printf("CLX: minimum base frequency not set\n");
+ ret = -1;
+ goto error_ret;
+ }
+
+ /* convert frequencies back to ratios */
+ pbf_info->p1_high = pbf_info->p1_high / 100000;
+ pbf_info->p1_low = pbf_info->p1_low / 100000;
+
+ /* create high priority cpu mask */
+ pbf_info->core_cpumask_size = alloc_cpu_set(&pbf_info->core_cpumask);
+ for (i = 0; i < topo_max_cpus; i++) {
+ if (!CPU_ISSET_S(i, present_cpumask_size, present_cpumask))
+ continue;
+
+ if (pkg_id != get_physical_package_id(i) ||
+ die_id != get_physical_die_id(i))
+ continue;
+
+ cpu_bf = parse_int_file(1,
+ "/sys/devices/system/cpu/cpu%d/cpufreq/base_frequency",
+ i);
+ cpu_bf = cpu_bf / 100000;
+ if (cpu_bf == pbf_info->p1_high)
+ CPU_SET_S(i, pbf_info->core_cpumask_size,
+ pbf_info->core_cpumask);
+ }
+
+ /* extra ctdp & pbf struct parameters */
+ ctdp_level->processed = 1;
+ ctdp_level->pbf_support = 1; /* PBF is always supported and enabled */
+ ctdp_level->pbf_enabled = 1;
+ ctdp_level->fact_support = 0; /* FACT is never supported */
+ ctdp_level->fact_enabled = 0;
+
+ return 0;
+
+error_ret:
+ free_cpu_set(ctdp_level->core_cpumask);
+ return ret;
+}
+
+static void dump_clx_n_config_for_cpu(int cpu, void *arg1, void *arg2,
+ void *arg3, void *arg4)
+{
+ int ret;
+
+ if (tdp_level != 0xff && tdp_level != 0) {
+ isst_display_error_info_message(1, "Invalid level", 1, tdp_level);
+ exit(0);
+ }
+
+ ret = clx_n_config(cpu);
+ if (ret) {
+ debug_printf("clx_n_config failed");
+ } else {
+ struct isst_pkg_ctdp_level_info *ctdp_level;
+ struct isst_pbf_info *pbf_info;
+
+ ctdp_level = &clx_n_pkg_dev.ctdp_level[0];
+ pbf_info = &ctdp_level->pbf_info;
+ clx_n_pkg_dev.processed = 1;
+ isst_ctdp_display_information(cpu, outf, tdp_level, &clx_n_pkg_dev);
+ free_cpu_set(ctdp_level->core_cpumask);
+ free_cpu_set(pbf_info->core_cpumask);
+ }
+}
+
+static void dump_isst_config_for_cpu(int cpu, void *arg1, void *arg2,
+ void *arg3, void *arg4)
+{
+ struct isst_pkg_ctdp pkg_dev;
+ int ret;
+
+ memset(&pkg_dev, 0, sizeof(pkg_dev));
+ ret = isst_get_process_ctdp(cpu, tdp_level, &pkg_dev);
+ if (ret) {
+ isst_display_error_info_message(1, "Failed to get perf-profile info on cpu", 1, cpu);
+ isst_ctdp_display_information_end(outf);
+ exit(1);
+ } else {
+ isst_ctdp_display_information(cpu, outf, tdp_level, &pkg_dev);
+ isst_get_process_ctdp_complete(cpu, &pkg_dev);
+ }
+}
+
+static void dump_isst_config(int arg)
+{
+ void *fn;
+
+ if (cmd_help) {
+ fprintf(stderr,
+ "Print Intel(R) Speed Select Technology Performance profile configuration\n");
+ fprintf(stderr,
+ "including base frequency and turbo frequency configurations\n");
+ fprintf(stderr, "Optional: -l|--level : Specify tdp level\n");
+ fprintf(stderr,
+ "\tIf no arguments, dump information for all TDP levels\n");
+ exit(0);
+ }
+
+ if (!is_clx_n_platform())
+ fn = dump_isst_config_for_cpu;
+ else
+ fn = dump_clx_n_config_for_cpu;
+
+ isst_ctdp_display_information_start(outf);
+
+ if (max_target_cpus)
+ for_each_online_target_cpu_in_set(fn, NULL, NULL, NULL, NULL);
+ else
+ for_each_online_package_in_set(fn, NULL, NULL, NULL, NULL);
+
+ isst_ctdp_display_information_end(outf);
+}
+
+static void adjust_scaling_max_from_base_freq(int cpu);
+
+static void set_tdp_level_for_cpu(int cpu, void *arg1, void *arg2, void *arg3,
+ void *arg4)
+{
+ int ret;
+
+ ret = isst_set_tdp_level(cpu, tdp_level);
+ if (ret) {
+ isst_display_error_info_message(1, "Set TDP level failed", 0, 0);
+ isst_ctdp_display_information_end(outf);
+ exit(1);
+ } else {
+ isst_display_result(cpu, outf, "perf-profile", "set_tdp_level",
+ ret);
+ if (force_online_offline) {
+ struct isst_pkg_ctdp_level_info ctdp_level;
+ int pkg_id = get_physical_package_id(cpu);
+ int die_id = get_physical_die_id(cpu);
+
+ /* Wait for updated base frequencies */
+ usleep(2000);
+
+ fprintf(stderr, "Option is set to online/offline\n");
+ ctdp_level.core_cpumask_size =
+ alloc_cpu_set(&ctdp_level.core_cpumask);
+ ret = isst_get_coremask_info(cpu, tdp_level, &ctdp_level);
+ if (ret) {
+ isst_display_error_info_message(1, "Can't get coremask, online/offline option is ignored", 0, 0);
+ return;
+ }
+ if (ctdp_level.cpu_count) {
+ int i, max_cpus = get_topo_max_cpus();
+ for (i = 0; i < max_cpus; ++i) {
+ if (pkg_id != get_physical_package_id(i) || die_id != get_physical_die_id(i))
+ continue;
+ if (CPU_ISSET_S(i, ctdp_level.core_cpumask_size, ctdp_level.core_cpumask)) {
+ fprintf(stderr, "online cpu %d\n", i);
+ set_cpu_online_offline(i, 1);
+ adjust_scaling_max_from_base_freq(i);
+ } else {
+ fprintf(stderr, "offline cpu %d\n", i);
+ set_cpu_online_offline(i, 0);
+ }
+ }
+ }
+ }
+ }
+}
+
+static void set_tdp_level(int arg)
+{
+ if (cmd_help) {
+ fprintf(stderr, "Set Config TDP level\n");
+ fprintf(stderr,
+ "\t Arguments: -l|--level : Specify tdp level\n");
+ fprintf(stderr,
+ "\t Optional Arguments: -o | online : online/offline for the tdp level\n");
+ fprintf(stderr,
+ "\t online/offline operation has limitations, refer to Linux hotplug documentation\n");
+ exit(0);
+ }
+
+ if (tdp_level == 0xff) {
+ isst_display_error_info_message(1, "Invalid command: specify tdp_level", 0, 0);
+ exit(1);
+ }
+ isst_ctdp_display_information_start(outf);
+ if (max_target_cpus)
+ for_each_online_target_cpu_in_set(set_tdp_level_for_cpu, NULL,
+ NULL, NULL, NULL);
+ else
+ for_each_online_package_in_set(set_tdp_level_for_cpu, NULL,
+ NULL, NULL, NULL);
+ isst_ctdp_display_information_end(outf);
+}
+
+static void clx_n_dump_pbf_config_for_cpu(int cpu, void *arg1, void *arg2,
+ void *arg3, void *arg4)
+{
+ int ret;
+
+ ret = clx_n_config(cpu);
+ if (ret) {
+ isst_display_error_info_message(1, "clx_n_config failed", 0, 0);
+ } else {
+ struct isst_pkg_ctdp_level_info *ctdp_level;
+ struct isst_pbf_info *pbf_info;
+
+ ctdp_level = &clx_n_pkg_dev.ctdp_level[0];
+ pbf_info = &ctdp_level->pbf_info;
+ isst_pbf_display_information(cpu, outf, tdp_level, pbf_info);
+ free_cpu_set(ctdp_level->core_cpumask);
+ free_cpu_set(pbf_info->core_cpumask);
+ }
+}
+
+static void dump_pbf_config_for_cpu(int cpu, void *arg1, void *arg2, void *arg3,
+ void *arg4)
+{
+ struct isst_pbf_info pbf_info;
+ int ret;
+
+ ret = isst_get_pbf_info(cpu, tdp_level, &pbf_info);
+ if (ret) {
+ isst_display_error_info_message(1, "Failed to get base-freq info at this level", 1, tdp_level);
+ isst_ctdp_display_information_end(outf);
+ exit(1);
+ } else {
+ isst_pbf_display_information(cpu, outf, tdp_level, &pbf_info);
+ isst_get_pbf_info_complete(&pbf_info);
+ }
+}
+
+static void dump_pbf_config(int arg)
+{
+ void *fn;
+
+ if (cmd_help) {
+ fprintf(stderr,
+ "Print Intel(R) Speed Select Technology base frequency configuration for a TDP level\n");
+ fprintf(stderr,
+ "\tArguments: -l|--level : Specify tdp level\n");
+ exit(0);
+ }
+
+ if (tdp_level == 0xff) {
+ isst_display_error_info_message(1, "Invalid command: specify tdp_level", 0, 0);
+ exit(1);
+ }
+
+ if (!is_clx_n_platform())
+ fn = dump_pbf_config_for_cpu;
+ else
+ fn = clx_n_dump_pbf_config_for_cpu;
+
+ isst_ctdp_display_information_start(outf);
+
+ if (max_target_cpus)
+ for_each_online_target_cpu_in_set(fn, NULL, NULL, NULL, NULL);
+ else
+ for_each_online_package_in_set(fn, NULL, NULL, NULL, NULL);
+
+ isst_ctdp_display_information_end(outf);
+}
+
+static int set_clos_param(int cpu, int clos, int epp, int wt, int min, int max)
+{
+ struct isst_clos_config clos_config;
+ int ret;
+
+ ret = isst_pm_get_clos(cpu, clos, &clos_config);
+ if (ret) {
+ isst_display_error_info_message(1, "isst_pm_get_clos failed", 0, 0);
+ return ret;
+ }
+ clos_config.clos_min = min;
+ clos_config.clos_max = max;
+ clos_config.epp = epp;
+ clos_config.clos_prop_prio = wt;
+ ret = isst_set_clos(cpu, clos, &clos_config);
+ if (ret) {
+ isst_display_error_info_message(1, "isst_set_clos failed", 0, 0);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int set_cpufreq_scaling_min_max(int cpu, int max, int freq)
+{
+ char buffer[128], freq_str[16];
+ int fd, ret, len;
+
+ if (max)
+ snprintf(buffer, sizeof(buffer),
+ "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_max_freq", cpu);
+ else
+ snprintf(buffer, sizeof(buffer),
+ "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_min_freq", cpu);
+
+ fd = open(buffer, O_WRONLY);
+ if (fd < 0)
+ return fd;
+
+ snprintf(freq_str, sizeof(freq_str), "%d", freq);
+ len = strlen(freq_str);
+ ret = write(fd, freq_str, len);
+ if (ret == -1) {
+ close(fd);
+ return ret;
+ }
+ close(fd);
+
+ return 0;
+}
+
+static int no_turbo(void)
+{
+ return parse_int_file(0, "/sys/devices/system/cpu/intel_pstate/no_turbo");
+}
+
+static void adjust_scaling_max_from_base_freq(int cpu)
+{
+ int base_freq, scaling_max_freq;
+
+ scaling_max_freq = parse_int_file(0, "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_max_freq", cpu);
+ base_freq = get_cpufreq_base_freq(cpu);
+ if (scaling_max_freq < base_freq || no_turbo())
+ set_cpufreq_scaling_min_max(cpu, 1, base_freq);
+}
+
+static void adjust_scaling_min_from_base_freq(int cpu)
+{
+ int base_freq, scaling_min_freq;
+
+ scaling_min_freq = parse_int_file(0, "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_min_freq", cpu);
+ base_freq = get_cpufreq_base_freq(cpu);
+ if (scaling_min_freq < base_freq)
+ set_cpufreq_scaling_min_max(cpu, 0, base_freq);
+}
+
+static int set_clx_pbf_cpufreq_scaling_min_max(int cpu)
+{
+ struct isst_pkg_ctdp_level_info *ctdp_level;
+ struct isst_pbf_info *pbf_info;
+ int i, pkg_id, die_id, freq, freq_high, freq_low;
+ int ret;
+
+ ret = clx_n_config(cpu);
+ if (ret) {
+ debug_printf("cpufreq_scaling_min_max failed for CLX");
+ return ret;
+ }
+
+ ctdp_level = &clx_n_pkg_dev.ctdp_level[0];
+ pbf_info = &ctdp_level->pbf_info;
+ freq_high = pbf_info->p1_high * 100000;
+ freq_low = pbf_info->p1_low * 100000;
+
+ pkg_id = get_physical_package_id(cpu);
+ die_id = get_physical_die_id(cpu);
+ for (i = 0; i < get_topo_max_cpus(); ++i) {
+ if (pkg_id != get_physical_package_id(i) ||
+ die_id != get_physical_die_id(i))
+ continue;
+
+ if (CPU_ISSET_S(i, pbf_info->core_cpumask_size,
+ pbf_info->core_cpumask))
+ freq = freq_high;
+ else
+ freq = freq_low;
+
+ set_cpufreq_scaling_min_max(i, 1, freq);
+ set_cpufreq_scaling_min_max(i, 0, freq);
+ }
+
+ return 0;
+}
+
+static int set_cpufreq_scaling_min_max_from_cpuinfo(int cpu, int cpuinfo_max, int scaling_max)
+{
+ char buffer[128], min_freq[16];
+ int fd, ret, len;
+
+ if (!CPU_ISSET_S(cpu, present_cpumask_size, present_cpumask))
+ return -1;
+
+ if (cpuinfo_max)
+ snprintf(buffer, sizeof(buffer),
+ "/sys/devices/system/cpu/cpu%d/cpufreq/cpuinfo_max_freq", cpu);
+ else
+ snprintf(buffer, sizeof(buffer),
+ "/sys/devices/system/cpu/cpu%d/cpufreq/cpuinfo_min_freq", cpu);
+
+ fd = open(buffer, O_RDONLY);
+ if (fd < 0)
+ return fd;
+
+ len = read(fd, min_freq, sizeof(min_freq));
+ close(fd);
+
+ if (len < 0)
+ return len;
+
+ if (scaling_max)
+ snprintf(buffer, sizeof(buffer),
+ "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_max_freq", cpu);
+ else
+ snprintf(buffer, sizeof(buffer),
+ "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_min_freq", cpu);
+
+ fd = open(buffer, O_WRONLY);
+ if (fd < 0)
+ return fd;
+
+ len = strlen(min_freq);
+ ret = write(fd, min_freq, len);
+ if (ret == -1) {
+ close(fd);
+ return ret;
+ }
+ close(fd);
+
+ return 0;
+}
+
+static void set_scaling_min_to_cpuinfo_max(int cpu)
+{
+ int i, pkg_id, die_id;
+
+ pkg_id = get_physical_package_id(cpu);
+ die_id = get_physical_die_id(cpu);
+ for (i = 0; i < get_topo_max_cpus(); ++i) {
+ if (pkg_id != get_physical_package_id(i) ||
+ die_id != get_physical_die_id(i))
+ continue;
+
+ set_cpufreq_scaling_min_max_from_cpuinfo(i, 1, 0);
+ adjust_scaling_min_from_base_freq(i);
+ }
+}
+
+static void set_scaling_min_to_cpuinfo_min(int cpu)
+{
+ int i, pkg_id, die_id;
+
+ pkg_id = get_physical_package_id(cpu);
+ die_id = get_physical_die_id(cpu);
+ for (i = 0; i < get_topo_max_cpus(); ++i) {
+ if (pkg_id != get_physical_package_id(i) ||
+ die_id != get_physical_die_id(i))
+ continue;
+
+ set_cpufreq_scaling_min_max_from_cpuinfo(i, 0, 0);
+ }
+}
+
+static void set_scaling_max_to_cpuinfo_max(int cpu)
+{
+ int i, pkg_id, die_id;
+
+ pkg_id = get_physical_package_id(cpu);
+ die_id = get_physical_die_id(cpu);
+ for (i = 0; i < get_topo_max_cpus(); ++i) {
+ if (pkg_id != get_physical_package_id(i) ||
+ die_id != get_physical_die_id(i))
+ continue;
+
+ set_cpufreq_scaling_min_max_from_cpuinfo(i, 1, 1);
+ }
+}
+
+static int set_core_priority_and_min(int cpu, int mask_size,
+ cpu_set_t *cpu_mask, int min_high,
+ int min_low)
+{
+ int pkg_id, die_id, ret, i;
+
+ if (!CPU_COUNT_S(mask_size, cpu_mask))
+ return -1;
+
+ ret = set_clos_param(cpu, 0, 0, 0, min_high, 0xff);
+ if (ret)
+ return ret;
+
+ ret = set_clos_param(cpu, 1, 15, 15, min_low, 0xff);
+ if (ret)
+ return ret;
+
+ ret = set_clos_param(cpu, 2, 15, 15, min_low, 0xff);
+ if (ret)
+ return ret;
+
+ ret = set_clos_param(cpu, 3, 15, 15, min_low, 0xff);
+ if (ret)
+ return ret;
+
+ pkg_id = get_physical_package_id(cpu);
+ die_id = get_physical_die_id(cpu);
+ for (i = 0; i < get_topo_max_cpus(); ++i) {
+ int clos;
+
+ if (pkg_id != get_physical_package_id(i) ||
+ die_id != get_physical_die_id(i))
+ continue;
+
+ if (CPU_ISSET_S(i, mask_size, cpu_mask))
+ clos = 0;
+ else
+ clos = 3;
+
+ debug_printf("Associate cpu: %d clos: %d\n", i, clos);
+ ret = isst_clos_associate(i, clos);
+ if (ret) {
+ isst_display_error_info_message(1, "isst_clos_associate failed", 0, 0);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int set_pbf_core_power(int cpu)
+{
+ struct isst_pbf_info pbf_info;
+ struct isst_pkg_ctdp pkg_dev;
+ int ret;
+
+ ret = isst_get_ctdp_levels(cpu, &pkg_dev);
+ if (ret) {
+ debug_printf("isst_get_ctdp_levels failed");
+ return ret;
+ }
+ debug_printf("Current_level: %d\n", pkg_dev.current_level);
+
+ ret = isst_get_pbf_info(cpu, pkg_dev.current_level, &pbf_info);
+ if (ret) {
+ debug_printf("isst_get_pbf_info failed");
+ return ret;
+ }
+ debug_printf("p1_high: %d p1_low: %d\n", pbf_info.p1_high,
+ pbf_info.p1_low);
+
+ ret = set_core_priority_and_min(cpu, pbf_info.core_cpumask_size,
+ pbf_info.core_cpumask,
+ pbf_info.p1_high, pbf_info.p1_low);
+ if (ret) {
+ debug_printf("set_core_priority_and_min failed");
+ return ret;
+ }
+
+ ret = isst_pm_qos_config(cpu, 1, 1);
+ if (ret) {
+ debug_printf("isst_pm_qos_config failed");
+ return ret;
+ }
+
+ return 0;
+}
+
+static void set_pbf_for_cpu(int cpu, void *arg1, void *arg2, void *arg3,
+ void *arg4)
+{
+ struct isst_pkg_ctdp_level_info ctdp_level;
+ struct isst_pkg_ctdp pkg_dev;
+ int ret;
+ int status = *(int *)arg4;
+
+ if (is_clx_n_platform()) {
+ ret = 0;
+ if (status) {
+ set_clx_pbf_cpufreq_scaling_min_max(cpu);
+
+ } else {
+ set_scaling_max_to_cpuinfo_max(cpu);
+ set_scaling_min_to_cpuinfo_min(cpu);
+ }
+ goto disp_result;
+ }
+
+ ret = isst_get_ctdp_levels(cpu, &pkg_dev);
+ if (ret) {
+ isst_display_error_info_message(1, "Failed to get number of levels", 0, 0);
+ goto disp_result;
+ }
+
+ ret = isst_get_ctdp_control(cpu, pkg_dev.current_level, &ctdp_level);
+ if (ret) {
+ isst_display_error_info_message(1, "Failed to get current level", 0, 0);
+ goto disp_result;
+ }
+
+ if (!ctdp_level.pbf_support) {
+ isst_display_error_info_message(1, "base-freq feature is not present at this level", 1, pkg_dev.current_level);
+ ret = -1;
+ goto disp_result;
+ }
+
+ if (auto_mode && status) {
+ ret = set_pbf_core_power(cpu);
+ if (ret)
+ goto disp_result;
+ }
+
+ ret = isst_set_pbf_fact_status(cpu, 1, status);
+ if (ret) {
+ debug_printf("isst_set_pbf_fact_status failed");
+ if (auto_mode)
+ isst_pm_qos_config(cpu, 0, 0);
+ } else {
+ if (auto_mode) {
+ if (status)
+ set_scaling_min_to_cpuinfo_max(cpu);
+ else
+ set_scaling_min_to_cpuinfo_min(cpu);
+ }
+ }
+
+ if (auto_mode && !status)
+ isst_pm_qos_config(cpu, 0, 1);
+
+disp_result:
+ if (status)
+ isst_display_result(cpu, outf, "base-freq", "enable",
+ ret);
+ else
+ isst_display_result(cpu, outf, "base-freq", "disable",
+ ret);
+}
+
+static void set_pbf_enable(int arg)
+{
+ int enable = arg;
+
+ if (cmd_help) {
+ if (enable) {
+ fprintf(stderr,
+ "Enable Intel Speed Select Technology base frequency feature\n");
+ if (is_clx_n_platform()) {
+ fprintf(stderr,
+ "\tOn this platform this command doesn't enable feature in the hardware.\n");
+ fprintf(stderr,
+ "\tIt updates the cpufreq scaling_min_freq to match cpufreq base_frequency.\n");
+ exit(0);
+
+ }
+ fprintf(stderr,
+ "\tOptional Arguments: -a|--auto : Use priority of cores to set core-power associations\n");
+ } else {
+
+ if (is_clx_n_platform()) {
+ fprintf(stderr,
+ "\tOn this platform this command doesn't disable feature in the hardware.\n");
+ fprintf(stderr,
+ "\tIt updates the cpufreq scaling_min_freq to match cpuinfo_min_freq\n");
+ exit(0);
+ }
+ fprintf(stderr,
+ "Disable Intel Speed Select Technology base frequency feature\n");
+ fprintf(stderr,
+ "\tOptional Arguments: -a|--auto : Also disable core-power associations\n");
+ }
+ exit(0);
+ }
+
+ isst_ctdp_display_information_start(outf);
+ if (max_target_cpus)
+ for_each_online_target_cpu_in_set(set_pbf_for_cpu, NULL, NULL,
+ NULL, &enable);
+ else
+ for_each_online_package_in_set(set_pbf_for_cpu, NULL, NULL,
+ NULL, &enable);
+ isst_ctdp_display_information_end(outf);
+}
+
+static void dump_fact_config_for_cpu(int cpu, void *arg1, void *arg2,
+ void *arg3, void *arg4)
+{
+ struct isst_fact_info fact_info;
+ int ret;
+
+ ret = isst_get_fact_info(cpu, tdp_level, fact_bucket, &fact_info);
+ if (ret) {
+ isst_display_error_info_message(1, "Failed to get turbo-freq info at this level", 1, tdp_level);
+ isst_ctdp_display_information_end(outf);
+ exit(1);
+ } else {
+ isst_fact_display_information(cpu, outf, tdp_level, fact_bucket,
+ fact_avx, &fact_info);
+ }
+}
+
+static void dump_fact_config(int arg)
+{
+ if (cmd_help) {
+ fprintf(stderr,
+ "Print complete Intel Speed Select Technology turbo frequency configuration for a TDP level. Other arguments are optional.\n");
+ fprintf(stderr,
+ "\tArguments: -l|--level : Specify tdp level\n");
+ fprintf(stderr,
+ "\tArguments: -b|--bucket : Bucket index to dump\n");
+ fprintf(stderr,
+ "\tArguments: -r|--trl-type : Specify trl type: sse|avx2|avx512\n");
+ exit(0);
+ }
+
+ if (tdp_level == 0xff) {
+ isst_display_error_info_message(1, "Invalid command: specify tdp_level\n", 0, 0);
+ exit(1);
+ }
+
+ isst_ctdp_display_information_start(outf);
+ if (max_target_cpus)
+ for_each_online_target_cpu_in_set(dump_fact_config_for_cpu,
+ NULL, NULL, NULL, NULL);
+ else
+ for_each_online_package_in_set(dump_fact_config_for_cpu, NULL,
+ NULL, NULL, NULL);
+ isst_ctdp_display_information_end(outf);
+}
+
+static void set_fact_for_cpu(int cpu, void *arg1, void *arg2, void *arg3,
+ void *arg4)
+{
+ struct isst_pkg_ctdp_level_info ctdp_level;
+ struct isst_pkg_ctdp pkg_dev;
+ int ret;
+ int status = *(int *)arg4;
+
+ ret = isst_get_ctdp_levels(cpu, &pkg_dev);
+ if (ret) {
+ isst_display_error_info_message(1, "Failed to get number of levels", 0, 0);
+ goto disp_results;
+ }
+
+ ret = isst_get_ctdp_control(cpu, pkg_dev.current_level, &ctdp_level);
+ if (ret) {
+ isst_display_error_info_message(1, "Failed to get current level", 0, 0);
+ goto disp_results;
+ }
+
+ if (!ctdp_level.fact_support) {
+ isst_display_error_info_message(1, "turbo-freq feature is not present at this level", 1, pkg_dev.current_level);
+ ret = -1;
+ goto disp_results;
+ }
+
+ if (status) {
+ ret = isst_pm_qos_config(cpu, 1, 1);
+ if (ret)
+ goto disp_results;
+ }
+
+ ret = isst_set_pbf_fact_status(cpu, 0, status);
+ if (ret) {
+ debug_printf("isst_set_pbf_fact_status failed");
+ if (auto_mode)
+ isst_pm_qos_config(cpu, 0, 0);
+
+ goto disp_results;
+ }
+
+ /* Set TRL */
+ if (status) {
+ struct isst_pkg_ctdp pkg_dev;
+
+ ret = isst_get_ctdp_levels(cpu, &pkg_dev);
+ if (!ret)
+ ret = isst_set_trl(cpu, fact_trl);
+ if (ret && auto_mode)
+ isst_pm_qos_config(cpu, 0, 0);
+ } else {
+ if (auto_mode)
+ isst_pm_qos_config(cpu, 0, 0);
+ }
+
+disp_results:
+ if (status) {
+ isst_display_result(cpu, outf, "turbo-freq", "enable", ret);
+ if (ret)
+ fact_enable_fail = ret;
+ } else {
+ /* Since we modified TRL during Fact enable, restore it */
+ isst_set_trl_from_current_tdp(cpu, fact_trl);
+ isst_display_result(cpu, outf, "turbo-freq", "disable", ret);
+ }
+}
+
+static void set_fact_enable(int arg)
+{
+ int i, ret, enable = arg;
+
+ if (cmd_help) {
+ if (enable) {
+ fprintf(stderr,
+ "Enable Intel Speed Select Technology Turbo frequency feature\n");
+ fprintf(stderr,
+ "Optional: -t|--trl : Specify turbo ratio limit\n");
+ fprintf(stderr,
+ "\tOptional Arguments: -a|--auto : Designate specified target CPUs with");
+ fprintf(stderr,
+ "-C|--cpu option as as high priority using core-power feature\n");
+ } else {
+ fprintf(stderr,
+ "Disable Intel Speed Select Technology turbo frequency feature\n");
+ fprintf(stderr,
+ "Optional: -t|--trl : Specify turbo ratio limit\n");
+ fprintf(stderr,
+ "\tOptional Arguments: -a|--auto : Also disable core-power associations\n");
+ }
+ exit(0);
+ }
+
+ isst_ctdp_display_information_start(outf);
+ if (max_target_cpus)
+ for_each_online_target_cpu_in_set(set_fact_for_cpu, NULL, NULL,
+ NULL, &enable);
+ else
+ for_each_online_package_in_set(set_fact_for_cpu, NULL, NULL,
+ NULL, &enable);
+ isst_ctdp_display_information_end(outf);
+
+ if (!fact_enable_fail && enable && auto_mode) {
+ /*
+ * When we adjust CLOS param, we have to set for siblings also.
+ * So for the each user specified CPU, also add the sibling
+ * in the present_cpu_mask.
+ */
+ for (i = 0; i < get_topo_max_cpus(); ++i) {
+ char buffer[128], sibling_list[128], *cpu_str;
+ int fd, len;
+
+ if (!CPU_ISSET_S(i, target_cpumask_size, target_cpumask))
+ continue;
+
+ snprintf(buffer, sizeof(buffer),
+ "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", i);
+
+ fd = open(buffer, O_RDONLY);
+ if (fd < 0)
+ continue;
+
+ len = read(fd, sibling_list, sizeof(sibling_list));
+ close(fd);
+
+ if (len < 0)
+ continue;
+
+ cpu_str = strtok(sibling_list, ",");
+ while (cpu_str != NULL) {
+ int cpu;
+
+ sscanf(cpu_str, "%d", &cpu);
+ CPU_SET_S(cpu, target_cpumask_size, target_cpumask);
+ cpu_str = strtok(NULL, ",");
+ }
+ }
+
+ for (i = 0; i < get_topo_max_cpus(); ++i) {
+ int clos;
+
+ if (!CPU_ISSET_S(i, present_cpumask_size, present_cpumask))
+ continue;
+
+ ret = set_clos_param(i, 0, 0, 0, 0, 0xff);
+ if (ret)
+ goto error_disp;
+
+ ret = set_clos_param(i, 1, 15, 15, 0, 0xff);
+ if (ret)
+ goto error_disp;
+
+ ret = set_clos_param(i, 2, 15, 15, 0, 0xff);
+ if (ret)
+ goto error_disp;
+
+ ret = set_clos_param(i, 3, 15, 15, 0, 0xff);
+ if (ret)
+ goto error_disp;
+
+ if (CPU_ISSET_S(i, target_cpumask_size, target_cpumask))
+ clos = 0;
+ else
+ clos = 3;
+
+ debug_printf("Associate cpu: %d clos: %d\n", i, clos);
+ ret = isst_clos_associate(i, clos);
+ if (ret)
+ goto error_disp;
+ }
+ isst_display_result(-1, outf, "turbo-freq --auto", "enable", 0);
+ }
+
+ return;
+
+error_disp:
+ isst_display_result(i, outf, "turbo-freq --auto", "enable", ret);
+
+}
+
+static void enable_clos_qos_config(int cpu, void *arg1, void *arg2, void *arg3,
+ void *arg4)
+{
+ int ret;
+ int status = *(int *)arg4;
+
+ if (is_skx_based_platform())
+ clos_priority_type = 1;
+
+ ret = isst_pm_qos_config(cpu, status, clos_priority_type);
+ if (ret)
+ isst_display_error_info_message(1, "isst_pm_qos_config failed", 0, 0);
+
+ if (status)
+ isst_display_result(cpu, outf, "core-power", "enable",
+ ret);
+ else
+ isst_display_result(cpu, outf, "core-power", "disable",
+ ret);
+}
+
+static void set_clos_enable(int arg)
+{
+ int enable = arg;
+
+ if (cmd_help) {
+ if (enable) {
+ fprintf(stderr,
+ "Enable core-power for a package/die\n");
+ if (!is_skx_based_platform()) {
+ fprintf(stderr,
+ "\tClos Enable: Specify priority type with [--priority|-p]\n");
+ fprintf(stderr, "\t\t 0: Proportional, 1: Ordered\n");
+ }
+ } else {
+ fprintf(stderr,
+ "Disable core-power: [No command arguments are required]\n");
+ }
+ exit(0);
+ }
+
+ if (enable && cpufreq_sysfs_present()) {
+ fprintf(stderr,
+ "cpufreq subsystem and core-power enable will interfere with each other!\n");
+ }
+
+ isst_ctdp_display_information_start(outf);
+ if (max_target_cpus)
+ for_each_online_target_cpu_in_set(enable_clos_qos_config, NULL,
+ NULL, NULL, &enable);
+ else
+ for_each_online_package_in_set(enable_clos_qos_config, NULL,
+ NULL, NULL, &enable);
+ isst_ctdp_display_information_end(outf);
+}
+
+static void dump_clos_config_for_cpu(int cpu, void *arg1, void *arg2,
+ void *arg3, void *arg4)
+{
+ struct isst_clos_config clos_config;
+ int ret;
+
+ ret = isst_pm_get_clos(cpu, current_clos, &clos_config);
+ if (ret)
+ isst_display_error_info_message(1, "isst_pm_get_clos failed", 0, 0);
+ else
+ isst_clos_display_information(cpu, outf, current_clos,
+ &clos_config);
+}
+
+static void dump_clos_config(int arg)
+{
+ if (cmd_help) {
+ fprintf(stderr,
+ "Print Intel Speed Select Technology core power configuration\n");
+ fprintf(stderr,
+ "\tArguments: [-c | --clos]: Specify clos id\n");
+ exit(0);
+ }
+ if (current_clos < 0 || current_clos > 3) {
+ isst_display_error_info_message(1, "Invalid clos id\n", 0, 0);
+ isst_ctdp_display_information_end(outf);
+ exit(0);
+ }
+
+ isst_ctdp_display_information_start(outf);
+ if (max_target_cpus)
+ for_each_online_target_cpu_in_set(dump_clos_config_for_cpu,
+ NULL, NULL, NULL, NULL);
+ else
+ for_each_online_package_in_set(dump_clos_config_for_cpu, NULL,
+ NULL, NULL, NULL);
+ isst_ctdp_display_information_end(outf);
+}
+
+static void get_clos_info_for_cpu(int cpu, void *arg1, void *arg2, void *arg3,
+ void *arg4)
+{
+ int enable, ret, prio_type;
+
+ ret = isst_clos_get_clos_information(cpu, &enable, &prio_type);
+ if (ret)
+ isst_display_error_info_message(1, "isst_clos_get_info failed", 0, 0);
+ else {
+ int cp_state, cp_cap;
+
+ isst_read_pm_config(cpu, &cp_state, &cp_cap);
+ isst_clos_display_clos_information(cpu, outf, enable, prio_type,
+ cp_state, cp_cap);
+ }
+}
+
+static void dump_clos_info(int arg)
+{
+ if (cmd_help) {
+ fprintf(stderr,
+ "Print Intel Speed Select Technology core power information\n");
+ fprintf(stderr, "\t Optionally specify targeted cpu id with [--cpu|-c]\n");
+ exit(0);
+ }
+
+ isst_ctdp_display_information_start(outf);
+ if (max_target_cpus)
+ for_each_online_target_cpu_in_set(get_clos_info_for_cpu, NULL,
+ NULL, NULL, NULL);
+ else
+ for_each_online_package_in_set(get_clos_info_for_cpu, NULL,
+ NULL, NULL, NULL);
+ isst_ctdp_display_information_end(outf);
+
+}
+
+static void set_clos_config_for_cpu(int cpu, void *arg1, void *arg2, void *arg3,
+ void *arg4)
+{
+ struct isst_clos_config clos_config;
+ int ret;
+
+ clos_config.pkg_id = get_physical_package_id(cpu);
+ clos_config.die_id = get_physical_die_id(cpu);
+
+ clos_config.epp = clos_epp;
+ clos_config.clos_prop_prio = clos_prop_prio;
+ clos_config.clos_min = clos_min;
+ clos_config.clos_max = clos_max;
+ clos_config.clos_desired = clos_desired;
+ ret = isst_set_clos(cpu, current_clos, &clos_config);
+ if (ret)
+ isst_display_error_info_message(1, "isst_set_clos failed", 0, 0);
+ else
+ isst_display_result(cpu, outf, "core-power", "config", ret);
+}
+
+static void set_clos_config(int arg)
+{
+ if (cmd_help) {
+ fprintf(stderr,
+ "Set core-power configuration for one of the four clos ids\n");
+ fprintf(stderr,
+ "\tSpecify targeted clos id with [--clos|-c]\n");
+ if (!is_skx_based_platform()) {
+ fprintf(stderr, "\tSpecify clos EPP with [--epp|-e]\n");
+ fprintf(stderr,
+ "\tSpecify clos Proportional Priority [--weight|-w]\n");
+ }
+ fprintf(stderr, "\tSpecify clos min in MHz with [--min|-n]\n");
+ fprintf(stderr, "\tSpecify clos max in MHz with [--max|-m]\n");
+ exit(0);
+ }
+
+ if (current_clos < 0 || current_clos > 3) {
+ isst_display_error_info_message(1, "Invalid clos id\n", 0, 0);
+ exit(0);
+ }
+ if (!is_skx_based_platform() && (clos_epp < 0 || clos_epp > 0x0F)) {
+ fprintf(stderr, "clos epp is not specified or invalid, default: 0\n");
+ clos_epp = 0;
+ }
+ if (!is_skx_based_platform() && (clos_prop_prio < 0 || clos_prop_prio > 0x0F)) {
+ fprintf(stderr,
+ "clos frequency weight is not specified or invalid, default: 0\n");
+ clos_prop_prio = 0;
+ }
+ if (clos_min < 0) {
+ fprintf(stderr, "clos min is not specified, default: 0\n");
+ clos_min = 0;
+ }
+ if (clos_max < 0) {
+ fprintf(stderr, "clos max is not specified, default: Max frequency (ratio 0xff)\n");
+ clos_max = 0xff;
+ }
+ if (clos_desired) {
+ fprintf(stderr, "clos desired is not supported on this platform\n");
+ clos_desired = 0x00;
+ }
+
+ isst_ctdp_display_information_start(outf);
+ if (max_target_cpus)
+ for_each_online_target_cpu_in_set(set_clos_config_for_cpu, NULL,
+ NULL, NULL, NULL);
+ else
+ for_each_online_package_in_set(set_clos_config_for_cpu, NULL,
+ NULL, NULL, NULL);
+ isst_ctdp_display_information_end(outf);
+}
+
+static void set_clos_assoc_for_cpu(int cpu, void *arg1, void *arg2, void *arg3,
+ void *arg4)
+{
+ int ret;
+
+ ret = isst_clos_associate(cpu, current_clos);
+ if (ret)
+ debug_printf("isst_clos_associate failed");
+ else
+ isst_display_result(cpu, outf, "core-power", "assoc", ret);
+}
+
+static void set_clos_assoc(int arg)
+{
+ if (cmd_help) {
+ fprintf(stderr, "Associate a clos id to a CPU\n");
+ fprintf(stderr,
+ "\tSpecify targeted clos id with [--clos|-c]\n");
+ fprintf(stderr,
+ "\tFor example to associate clos 1 to CPU 0: issue\n");
+ fprintf(stderr,
+ "\tintel-speed-select --cpu 0 core-power assoc --clos 1\n");
+ exit(0);
+ }
+
+ if (current_clos < 0 || current_clos > 3) {
+ isst_display_error_info_message(1, "Invalid clos id\n", 0, 0);
+ exit(0);
+ }
+ if (max_target_cpus)
+ for_each_online_target_cpu_in_set(set_clos_assoc_for_cpu, NULL,
+ NULL, NULL, NULL);
+ else {
+ isst_display_error_info_message(1, "Invalid target cpu. Specify with [-c|--cpu]", 0, 0);
+ }
+}
+
+static void get_clos_assoc_for_cpu(int cpu, void *arg1, void *arg2, void *arg3,
+ void *arg4)
+{
+ int clos, ret;
+
+ ret = isst_clos_get_assoc_status(cpu, &clos);
+ if (ret)
+ isst_display_error_info_message(1, "isst_clos_get_assoc_status failed", 0, 0);
+ else
+ isst_clos_display_assoc_information(cpu, outf, clos);
+}
+
+static void get_clos_assoc(int arg)
+{
+ if (cmd_help) {
+ fprintf(stderr, "Get associate clos id to a CPU\n");
+ fprintf(stderr, "\tSpecify targeted cpu id with [--cpu|-c]\n");
+ exit(0);
+ }
+
+ if (!max_target_cpus) {
+ isst_display_error_info_message(1, "Invalid target cpu. Specify with [-c|--cpu]", 0, 0);
+ exit(0);
+ }
+
+ isst_ctdp_display_information_start(outf);
+ for_each_online_target_cpu_in_set(get_clos_assoc_for_cpu, NULL,
+ NULL, NULL, NULL);
+ isst_ctdp_display_information_end(outf);
+}
+
+static struct process_cmd_struct clx_n_cmds[] = {
+ { "perf-profile", "info", dump_isst_config, 0 },
+ { "base-freq", "info", dump_pbf_config, 0 },
+ { "base-freq", "enable", set_pbf_enable, 1 },
+ { "base-freq", "disable", set_pbf_enable, 0 },
+ { NULL, NULL, NULL, 0 }
+};
+
+static struct process_cmd_struct isst_cmds[] = {
+ { "perf-profile", "get-lock-status", get_tdp_locked, 0 },
+ { "perf-profile", "get-config-levels", get_tdp_levels, 0 },
+ { "perf-profile", "get-config-version", get_tdp_version, 0 },
+ { "perf-profile", "get-config-enabled", get_tdp_enabled, 0 },
+ { "perf-profile", "get-config-current-level", get_tdp_current_level,
+ 0 },
+ { "perf-profile", "set-config-level", set_tdp_level, 0 },
+ { "perf-profile", "info", dump_isst_config, 0 },
+ { "base-freq", "info", dump_pbf_config, 0 },
+ { "base-freq", "enable", set_pbf_enable, 1 },
+ { "base-freq", "disable", set_pbf_enable, 0 },
+ { "turbo-freq", "info", dump_fact_config, 0 },
+ { "turbo-freq", "enable", set_fact_enable, 1 },
+ { "turbo-freq", "disable", set_fact_enable, 0 },
+ { "core-power", "info", dump_clos_info, 0 },
+ { "core-power", "enable", set_clos_enable, 1 },
+ { "core-power", "disable", set_clos_enable, 0 },
+ { "core-power", "config", set_clos_config, 0 },
+ { "core-power", "get-config", dump_clos_config, 0 },
+ { "core-power", "assoc", set_clos_assoc, 0 },
+ { "core-power", "get-assoc", get_clos_assoc, 0 },
+ { NULL, NULL, NULL }
+};
+
+/*
+ * parse cpuset with following syntax
+ * 1,2,4..6,8-10 and set bits in cpu_subset
+ */
+void parse_cpu_command(char *optarg)
+{
+ unsigned int start, end;
+ char *next;
+
+ next = optarg;
+
+ while (next && *next) {
+ if (*next == '-') /* no negative cpu numbers */
+ goto error;
+
+ start = strtoul(next, &next, 10);
+
+ if (max_target_cpus < MAX_CPUS_IN_ONE_REQ)
+ target_cpus[max_target_cpus++] = start;
+
+ if (*next == '\0')
+ break;
+
+ if (*next == ',') {
+ next += 1;
+ continue;
+ }
+
+ if (*next == '-') {
+ next += 1; /* start range */
+ } else if (*next == '.') {
+ next += 1;
+ if (*next == '.')
+ next += 1; /* start range */
+ else
+ goto error;
+ }
+
+ end = strtoul(next, &next, 10);
+ if (end <= start)
+ goto error;
+
+ while (++start <= end) {
+ if (max_target_cpus < MAX_CPUS_IN_ONE_REQ)
+ target_cpus[max_target_cpus++] = start;
+ }
+
+ if (*next == ',')
+ next += 1;
+ else if (*next != '\0')
+ goto error;
+ }
+
+#ifdef DEBUG
+ {
+ int i;
+
+ for (i = 0; i < max_target_cpus; ++i)
+ printf("cpu [%d] in arg\n", target_cpus[i]);
+ }
+#endif
+ return;
+
+error:
+ fprintf(stderr, "\"--cpu %s\" malformed\n", optarg);
+ exit(-1);
+}
+
+static void parse_cmd_args(int argc, int start, char **argv)
+{
+ int opt;
+ int option_index;
+
+ static struct option long_options[] = {
+ { "bucket", required_argument, 0, 'b' },
+ { "level", required_argument, 0, 'l' },
+ { "online", required_argument, 0, 'o' },
+ { "trl-type", required_argument, 0, 'r' },
+ { "trl", required_argument, 0, 't' },
+ { "help", no_argument, 0, 'h' },
+ { "clos", required_argument, 0, 'c' },
+ { "desired", required_argument, 0, 'd' },
+ { "epp", required_argument, 0, 'e' },
+ { "min", required_argument, 0, 'n' },
+ { "max", required_argument, 0, 'm' },
+ { "priority", required_argument, 0, 'p' },
+ { "weight", required_argument, 0, 'w' },
+ { "auto", no_argument, 0, 'a' },
+ { 0, 0, 0, 0 }
+ };
+
+ option_index = start;
+
+ optind = start + 1;
+ while ((opt = getopt_long(argc, argv, "b:l:t:c:d:e:n:m:p:w:r:hoa",
+ long_options, &option_index)) != -1) {
+ switch (opt) {
+ case 'a':
+ auto_mode = 1;
+ break;
+ case 'b':
+ fact_bucket = atoi(optarg);
+ break;
+ case 'h':
+ cmd_help = 1;
+ break;
+ case 'l':
+ tdp_level = atoi(optarg);
+ break;
+ case 'o':
+ force_online_offline = 1;
+ break;
+ case 't':
+ sscanf(optarg, "0x%llx", &fact_trl);
+ break;
+ case 'r':
+ if (!strncmp(optarg, "sse", 3)) {
+ fact_avx = 0x01;
+ } else if (!strncmp(optarg, "avx2", 4)) {
+ fact_avx = 0x02;
+ } else if (!strncmp(optarg, "avx512", 6)) {
+ fact_avx = 0x04;
+ } else {
+ fprintf(outf, "Invalid sse,avx options\n");
+ exit(1);
+ }
+ break;
+ /* CLOS related */
+ case 'c':
+ current_clos = atoi(optarg);
+ break;
+ case 'd':
+ clos_desired = atoi(optarg);
+ clos_desired /= DISP_FREQ_MULTIPLIER;
+ break;
+ case 'e':
+ clos_epp = atoi(optarg);
+ if (is_skx_based_platform()) {
+ isst_display_error_info_message(1, "epp can't be specified on this platform", 0, 0);
+ exit(0);
+ }
+ break;
+ case 'n':
+ clos_min = atoi(optarg);
+ clos_min /= DISP_FREQ_MULTIPLIER;
+ break;
+ case 'm':
+ clos_max = atoi(optarg);
+ clos_max /= DISP_FREQ_MULTIPLIER;
+ break;
+ case 'p':
+ clos_priority_type = atoi(optarg);
+ if (is_skx_based_platform() && !clos_priority_type) {
+ isst_display_error_info_message(1, "Invalid clos priority type: proportional for this platform", 0, 0);
+ exit(0);
+ }
+ break;
+ case 'w':
+ clos_prop_prio = atoi(optarg);
+ if (is_skx_based_platform()) {
+ isst_display_error_info_message(1, "weight can't be specified on this platform", 0, 0);
+ exit(0);
+ }
+ break;
+ default:
+ printf("Unknown option: ignore\n");
+ }
+ }
+
+ if (argv[optind])
+ printf("Garbage at the end of command: ignore\n");
+}
+
+static void isst_help(void)
+{
+ printf("perf-profile:\tAn architectural mechanism that allows multiple optimized \n\
+ performance profiles per system via static and/or dynamic\n\
+ adjustment of core count, workload, Tjmax, and\n\
+ TDP, etc.\n");
+ printf("\nCommands : For feature=perf-profile\n");
+ printf("\tinfo\n");
+
+ if (!is_clx_n_platform()) {
+ printf("\tget-lock-status\n");
+ printf("\tget-config-levels\n");
+ printf("\tget-config-version\n");
+ printf("\tget-config-enabled\n");
+ printf("\tget-config-current-level\n");
+ printf("\tset-config-level\n");
+ }
+}
+
+static void pbf_help(void)
+{
+ printf("base-freq:\tEnables users to increase guaranteed base frequency\n\
+ on certain cores (high priority cores) in exchange for lower\n\
+ base frequency on remaining cores (low priority cores).\n");
+ printf("\tcommand : info\n");
+ printf("\tcommand : enable\n");
+ printf("\tcommand : disable\n");
+}
+
+static void fact_help(void)
+{
+ printf("turbo-freq:\tEnables the ability to set different turbo ratio\n\
+ limits to cores based on priority.\n");
+ printf("\nCommand: For feature=turbo-freq\n");
+ printf("\tcommand : info\n");
+ printf("\tcommand : enable\n");
+ printf("\tcommand : disable\n");
+}
+
+static void core_power_help(void)
+{
+ printf("core-power:\tInterface that allows user to define per core/tile\n\
+ priority.\n");
+ printf("\nCommands : For feature=core-power\n");
+ printf("\tinfo\n");
+ printf("\tenable\n");
+ printf("\tdisable\n");
+ printf("\tconfig\n");
+ printf("\tget-config\n");
+ printf("\tassoc\n");
+ printf("\tget-assoc\n");
+}
+
+struct process_cmd_help_struct {
+ char *feature;
+ void (*process_fn)(void);
+};
+
+static struct process_cmd_help_struct isst_help_cmds[] = {
+ { "perf-profile", isst_help },
+ { "base-freq", pbf_help },
+ { "turbo-freq", fact_help },
+ { "core-power", core_power_help },
+ { NULL, NULL }
+};
+
+static struct process_cmd_help_struct clx_n_help_cmds[] = {
+ { "perf-profile", isst_help },
+ { "base-freq", pbf_help },
+ { NULL, NULL }
+};
+
+void process_command(int argc, char **argv,
+ struct process_cmd_help_struct *help_cmds,
+ struct process_cmd_struct *cmds)
+{
+ int i = 0, matched = 0;
+ char *feature = argv[optind];
+ char *cmd = argv[optind + 1];
+
+ if (!feature || !cmd)
+ return;
+
+ debug_printf("feature name [%s] command [%s]\n", feature, cmd);
+ if (!strcmp(cmd, "-h") || !strcmp(cmd, "--help")) {
+ while (help_cmds[i].feature) {
+ if (!strcmp(help_cmds[i].feature, feature)) {
+ help_cmds[i].process_fn();
+ exit(0);
+ }
+ ++i;
+ }
+ }
+
+ if (!is_clx_n_platform())
+ create_cpu_map();
+
+ i = 0;
+ while (cmds[i].feature) {
+ if (!strcmp(cmds[i].feature, feature) &&
+ !strcmp(cmds[i].command, cmd)) {
+ parse_cmd_args(argc, optind + 1, argv);
+ cmds[i].process_fn(cmds[i].arg);
+ matched = 1;
+ break;
+ }
+ ++i;
+ }
+
+ if (!matched)
+ fprintf(stderr, "Invalid command\n");
+}
+
+static void usage(void)
+{
+ if (is_clx_n_platform()) {
+ fprintf(stderr, "\nThere is limited support of Intel Speed Select features on this platform.\n");
+ fprintf(stderr, "Everything is pre-configured using BIOS options, this tool can't enable any feature in the hardware.\n\n");
+ }
+
+ printf("\nUsage:\n");
+ printf("intel-speed-select [OPTIONS] FEATURE COMMAND COMMAND_ARGUMENTS\n");
+ printf("\nUse this tool to enumerate and control the Intel Speed Select Technology features:\n");
+ if (is_clx_n_platform())
+ printf("\nFEATURE : [perf-profile|base-freq]\n");
+ else
+ printf("\nFEATURE : [perf-profile|base-freq|turbo-freq|core-power]\n");
+ printf("\nFor help on each feature, use -h|--help\n");
+ printf("\tFor example: intel-speed-select perf-profile -h\n");
+
+ printf("\nFor additional help on each command for a feature, use --h|--help\n");
+ printf("\tFor example: intel-speed-select perf-profile get-lock-status -h\n");
+ printf("\t\t This will print help for the command \"get-lock-status\" for the feature \"perf-profile\"\n");
+
+ printf("\nOPTIONS\n");
+ printf("\t[-c|--cpu] : logical cpu number\n");
+ printf("\t\tDefault: Die scoped for all dies in the system with multiple dies/package\n");
+ printf("\t\t\t Or Package scoped for all Packages when each package contains one die\n");
+ printf("\t[-d|--debug] : Debug mode\n");
+ printf("\t[-f|--format] : output format [json|text]. Default: text\n");
+ printf("\t[-h|--help] : Print help\n");
+ printf("\t[-i|--info] : Print platform information\n");
+ printf("\t[-o|--out] : Output file\n");
+ printf("\t\t\tDefault : stderr\n");
+ printf("\t[-p|--pause] : Delay between two mail box commands in milliseconds\n");
+ printf("\t[-r|--retry] : Retry count for mail box commands on failure, default 3\n");
+ printf("\t[-v|--version] : Print version\n");
+
+ printf("\nResult format\n");
+ printf("\tResult display uses a common format for each command:\n");
+ printf("\tResults are formatted in text/JSON with\n");
+ printf("\t\tPackage, Die, CPU, and command specific results.\n");
+
+ printf("\nExamples\n");
+ printf("\tTo get platform information:\n");
+ printf("\t\tintel-speed-select --info\n");
+ printf("\tTo get full perf-profile information dump:\n");
+ printf("\t\tintel-speed-select perf-profile info\n");
+ printf("\tTo get full base-freq information dump:\n");
+ printf("\t\tintel-speed-select base-freq info -l 0\n");
+ if (!is_clx_n_platform()) {
+ printf("\tTo get full turbo-freq information dump:\n");
+ printf("\t\tintel-speed-select turbo-freq info -l 0\n");
+ }
+ exit(1);
+}
+
+static void print_version(void)
+{
+ fprintf(outf, "Version %s\n", version_str);
+ fprintf(outf, "Build date %s time %s\n", __DATE__, __TIME__);
+ exit(0);
+}
+
+static void cmdline(int argc, char **argv)
+{
+ const char *pathname = "/dev/isst_interface";
+ char *ptr;
+ FILE *fp;
+ int opt;
+ int option_index = 0;
+ int ret;
+
+ static struct option long_options[] = {
+ { "cpu", required_argument, 0, 'c' },
+ { "debug", no_argument, 0, 'd' },
+ { "format", required_argument, 0, 'f' },
+ { "help", no_argument, 0, 'h' },
+ { "info", no_argument, 0, 'i' },
+ { "pause", required_argument, 0, 'p' },
+ { "out", required_argument, 0, 'o' },
+ { "retry", required_argument, 0, 'r' },
+ { "version", no_argument, 0, 'v' },
+ { 0, 0, 0, 0 }
+ };
+
+ if (geteuid() != 0) {
+ fprintf(stderr, "Must run as root\n");
+ exit(0);
+ }
+
+ ret = update_cpu_model();
+ if (ret)
+ err(-1, "Invalid CPU model (%d)\n", cpu_model);
+ printf("Intel(R) Speed Select Technology\n");
+ printf("Executing on CPU model:%d[0x%x]\n", cpu_model, cpu_model);
+
+ if (!is_clx_n_platform()) {
+ fp = fopen(pathname, "rb");
+ if (!fp) {
+ fprintf(stderr, "Intel speed select drivers are not loaded on this system.\n");
+ fprintf(stderr, "Verify that kernel config includes CONFIG_INTEL_SPEED_SELECT_INTERFACE.\n");
+ fprintf(stderr, "If the config is included then this is not a supported platform.\n");
+ exit(0);
+ }
+ fclose(fp);
+ }
+
+ progname = argv[0];
+ while ((opt = getopt_long_only(argc, argv, "+c:df:hio:v", long_options,
+ &option_index)) != -1) {
+ switch (opt) {
+ case 'c':
+ parse_cpu_command(optarg);
+ break;
+ case 'd':
+ debug_flag = 1;
+ printf("Debug Mode ON\n");
+ break;
+ case 'f':
+ if (!strncmp(optarg, "json", 4))
+ out_format_json = 1;
+ break;
+ case 'h':
+ usage();
+ break;
+ case 'i':
+ isst_print_platform_information();
+ break;
+ case 'o':
+ if (outf)
+ fclose(outf);
+ outf = fopen_or_exit(optarg, "w");
+ break;
+ case 'p':
+ ret = strtol(optarg, &ptr, 10);
+ if (!ret)
+ fprintf(stderr, "Invalid pause interval, ignore\n");
+ else
+ mbox_delay = ret;
+ break;
+ case 'r':
+ ret = strtol(optarg, &ptr, 10);
+ if (!ret)
+ fprintf(stderr, "Invalid retry count, ignore\n");
+ else
+ mbox_retries = ret;
+ break;
+ case 'v':
+ print_version();
+ break;
+ default:
+ usage();
+ }
+ }
+
+ if (optind > (argc - 2)) {
+ usage();
+ exit(0);
+ }
+ set_max_cpu_num();
+ store_cpu_topology();
+ set_cpu_present_cpu_mask();
+ set_cpu_target_cpu_mask();
+
+ if (!is_clx_n_platform()) {
+ ret = isst_fill_platform_info();
+ if (ret)
+ goto out;
+ process_command(argc, argv, isst_help_cmds, isst_cmds);
+ } else {
+ process_command(argc, argv, clx_n_help_cmds, clx_n_cmds);
+ }
+out:
+ free_cpu_set(present_cpumask);
+ free_cpu_set(target_cpumask);
+}
+
+int main(int argc, char **argv)
+{
+ outf = stderr;
+ cmdline(argc, argv);
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 22:03:33 +0000