summaryrefslogtreecommitdiff
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.c244
1 files changed, 223 insertions, 21 deletions
diff --git a/tools/power/x86/intel-speed-select/isst-config.c b/tools/power/x86/intel-speed-select/isst-config.c
index a73346e854b8..558138eea75e 100644
--- a/tools/power/x86/intel-speed-select/isst-config.c
+++ b/tools/power/x86/intel-speed-select/isst-config.c
@@ -4,6 +4,7 @@
* Copyright (c) 2019 Intel Corporation.
*/
+#include <ctype.h>
#include <linux/isst_if.h>
#include "isst.h"
@@ -15,9 +16,9 @@ struct process_cmd_struct {
int arg;
};
-static const char *version_str = "v1.16";
+static const char *version_str = "v1.24";
-static const int supported_api_ver = 2;
+static const int supported_api_ver = 3;
static struct isst_if_platform_info isst_platform_info;
static char *progname;
static int debug_flag;
@@ -25,8 +26,9 @@ static FILE *outf;
static int cpu_model;
static int cpu_stepping;
+static int extended_family;
-#define MAX_CPUS_IN_ONE_REQ 256
+#define MAX_CPUS_IN_ONE_REQ 512
static short max_target_cpus;
static unsigned short target_cpus[MAX_CPUS_IN_ONE_REQ];
@@ -45,6 +47,9 @@ static int force_online_offline;
static int auto_mode;
static int fact_enable_fail;
static int cgroupv2;
+static int max_pkg_id;
+static int max_die_id;
+static int max_die_id_package_0;
/* clos related */
static int current_clos = -1;
@@ -54,6 +59,8 @@ static int clos_min = -1;
static int clos_max = -1;
static int clos_desired = -1;
static int clos_priority_type;
+static int cpu_0_cgroupv2;
+static int cpu_0_workaround(int isolate);
struct _cpu_map {
unsigned short core_id;
@@ -137,6 +144,14 @@ int is_icx_platform(void)
return 0;
}
+static int is_dmr_plus_platform(void)
+{
+ if (extended_family == 0x04)
+ return 1;
+
+ return 0;
+}
+
static int update_cpu_model(void)
{
unsigned int ebx, ecx, edx;
@@ -144,6 +159,7 @@ static int update_cpu_model(void)
__cpuid(1, fms, ebx, ecx, edx);
family = (fms >> 8) & 0xf;
+ extended_family = (fms >> 20) & 0x0f;
cpu_model = (fms >> 4) & 0xf;
if (family == 6 || family == 0xf)
cpu_model += ((fms >> 16) & 0xf) << 4;
@@ -478,14 +494,21 @@ void set_cpu_online_offline(int cpu, int state)
char buffer[128];
int fd, ret;
+ if (cpu_0_cgroupv2 && !cpu) {
+ fprintf(stderr, "Will use cgroup v2 for CPU 0\n");
+ cpu_0_workaround(!state);
+ return;
+ }
+
snprintf(buffer, sizeof(buffer),
"/sys/devices/system/cpu/cpu%d/online", cpu);
fd = open(buffer, O_WRONLY);
if (fd < 0) {
- if (!cpu && state) {
+ if (!cpu) {
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");
+ fprintf(stderr, "Will use cgroup v2\n");
+ cpu_0_workaround(!state);
return;
}
err(-1, "%s open failed", buffer);
@@ -545,6 +568,8 @@ void for_each_online_power_domain_in_set(void (*callback)(struct isst_id *, void
if (id.pkg < 0 || id.die < 0 || id.punit < 0)
continue;
+ id.die = id.die % (max_die_id_package_0 + 1);
+
valid_mask[id.pkg][id.die] = 1;
if (cpus[id.pkg][id.die][id.punit] == -1)
@@ -552,6 +577,18 @@ void for_each_online_power_domain_in_set(void (*callback)(struct isst_id *, void
}
for (i = 0; i < MAX_PACKAGE_COUNT; i++) {
+ if (max_die_id > max_pkg_id) {
+ for (k = 0; k < MAX_PUNIT_PER_DIE && k < MAX_DIE_PER_PACKAGE; k++) {
+ id.cpu = cpus[i][k][k];
+ id.pkg = i;
+ id.die = get_physical_die_id(id.cpu);
+ id.punit = k;
+ if (isst_is_punit_valid(&id))
+ callback(&id, arg1, arg2, arg3, arg4);
+ }
+ continue;
+ }
+
for (j = 0; j < MAX_DIE_PER_PACKAGE; j++) {
/*
* Fix me:
@@ -562,7 +599,10 @@ void for_each_online_power_domain_in_set(void (*callback)(struct isst_id *, void
for (k = 0; k < MAX_PUNIT_PER_DIE; k++) {
id.cpu = cpus[i][j][k];
id.pkg = i;
- id.die = j;
+ if (id.cpu >= 0)
+ id.die = get_physical_die_id(id.cpu);
+ else
+ id.die = id.pkg;
id.punit = k;
if (isst_is_punit_valid(&id))
callback(&id, arg1, arg2, arg3, arg4);
@@ -764,6 +804,8 @@ static void create_cpu_map(void)
cpu_map[i].die_id = die_id;
cpu_map[i].core_id = core_id;
+ if (max_pkg_id < pkg_id)
+ max_pkg_id = pkg_id;
punit_id = 0;
@@ -778,12 +820,19 @@ static void create_cpu_map(void)
map.cpu_map[0].logical_cpu);
} else {
update_punit_cpu_info(map.cpu_map[0].physical_cpu, &cpu_map[i]);
+ punit_id = cpu_map[i].punit_id;
}
}
cpu_map[i].initialized = 1;
cpu_cnt[pkg_id][die_id][punit_id]++;
+ if (max_die_id < die_id)
+ max_die_id = die_id;
+
+ if (!pkg_id && max_die_id_package_0 < die_id)
+ max_die_id_package_0 = die_id;
+
debug_printf(
"map logical_cpu:%d core: %d die:%d pkg:%d punit:%d punit_cpu:%d punit_core:%d\n",
i, cpu_map[i].core_id, cpu_map[i].die_id,
@@ -871,7 +920,7 @@ int enable_cpuset_controller(void)
return 0;
}
-int isolate_cpus(struct isst_id *id, int mask_size, cpu_set_t *cpu_mask, int level)
+int isolate_cpus(struct isst_id *id, int mask_size, cpu_set_t *cpu_mask, int level, int cpu_0_only)
{
int i, first, curr_index, index, ret, fd;
static char str[512], dir_name[64];
@@ -914,6 +963,12 @@ int isolate_cpus(struct isst_id *id, int mask_size, cpu_set_t *cpu_mask, int lev
curr_index = 0;
first = 1;
str[0] = '\0';
+
+ if (cpu_0_only) {
+ snprintf(str, str_len, "0");
+ goto create_partition;
+ }
+
for (i = 0; i < get_topo_max_cpus(); ++i) {
if (!is_cpu_in_power_domain(i, id))
continue;
@@ -936,6 +991,7 @@ int isolate_cpus(struct isst_id *id, int mask_size, cpu_set_t *cpu_mask, int lev
first = 0;
}
+create_partition:
debug_printf("isolated CPUs list: package:%d curr_index:%d [%s]\n", id->pkg, curr_index ,str);
snprintf(cpuset_cpus, sizeof(cpuset_cpus), "%s/cpuset.cpus", dir_name);
@@ -976,6 +1032,74 @@ int isolate_cpus(struct isst_id *id, int mask_size, cpu_set_t *cpu_mask, int lev
return 0;
}
+static int cpu_0_workaround(int isolate)
+{
+ int fd, fd1, len, ret;
+ cpu_set_t cpu_mask;
+ struct isst_id id;
+ char str[2];
+
+ debug_printf("isolate CPU 0 state: %d\n", isolate);
+
+ if (isolate)
+ goto isolate;
+
+ /* First check if CPU 0 was isolated to remove isolation. */
+
+ /* If the cpuset.cpus doesn't exist, that means that none of the CPUs are isolated*/
+ fd = open("/sys/fs/cgroup/0-0-0/cpuset.cpus", O_RDONLY, 0);
+ if (fd < 0)
+ return 0;
+
+ len = read(fd, str, sizeof(str));
+ /* Error check, but unlikely to fail. If fails that means that not isolated */
+ if (len == -1)
+ return 0;
+
+
+ /* Is CPU 0 is in isolate list, the display is sorted so first element will be CPU 0*/
+ if (str[0] != '0') {
+ close(fd);
+ return 0;
+ }
+
+ fd1 = open("/sys/fs/cgroup/0-0-0/cpuset.cpus.partition", O_RDONLY, 0);
+ /* Unlikely that, this attribute is not present, but handle error */
+ if (fd1 < 0) {
+ close(fd);
+ return 0;
+ }
+
+ /* Is CPU 0 already changed partition to "member" */
+ len = read(fd1, str, sizeof(str));
+ if (len != -1 && str[0] == 'm') {
+ close(fd1);
+ close(fd);
+ return 0;
+ }
+
+ close(fd1);
+ close(fd);
+
+ debug_printf("CPU 0 was isolated before, so remove isolation\n");
+
+isolate:
+ ret = enable_cpuset_controller();
+ if (ret)
+ goto isolate_fail;
+
+ CPU_ZERO(&cpu_mask);
+ memset(&id, 0, sizeof(struct isst_id));
+ CPU_SET(0, &cpu_mask);
+
+ ret = isolate_cpus(&id, sizeof(cpu_mask), &cpu_mask, isolate, 1);
+isolate_fail:
+ if (ret)
+ fprintf(stderr, "Can't isolate CPU 0\n");
+
+ return ret;
+}
+
static int isst_fill_platform_info(void)
{
const char *pathname = "/dev/isst_interface";
@@ -1403,7 +1527,8 @@ display_result:
usleep(2000);
/* Adjusting uncore freq */
- isst_adjust_uncore_freq(id, tdp_level, &ctdp_level);
+ if (!is_dmr_plus_platform())
+ isst_adjust_uncore_freq(id, tdp_level, &ctdp_level);
fprintf(stderr, "Option is set to online/offline\n");
ctdp_level.core_cpumask_size =
@@ -1422,7 +1547,8 @@ display_result:
if (ret)
goto use_offline;
- ret = isolate_cpus(id, ctdp_level.core_cpumask_size, ctdp_level.core_cpumask, tdp_level);
+ ret = isolate_cpus(id, ctdp_level.core_cpumask_size,
+ ctdp_level.core_cpumask, tdp_level, 0);
if (ret)
goto use_offline;
@@ -1967,6 +2093,7 @@ static void dump_fact_config_for_cpu(struct isst_id *id, void *arg1, void *arg2,
struct isst_fact_info fact_info;
int ret;
+ memset(&fact_info, 0, sizeof(fact_info));
ret = isst_get_fact_info(id, 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);
@@ -2090,7 +2217,7 @@ static void set_fact_enable(int arg)
fprintf(stderr,
"Enable Intel Speed Select Technology Turbo frequency feature\n");
fprintf(stderr,
- "Optional: -t|--trl : Specify turbo ratio limit\n");
+ "Optional: -t|--trl : Specify turbo ratio limit in hex starting with 0x\n");
fprintf(stderr,
"\tOptional Arguments: -a|--auto : Designate specified target CPUs with");
fprintf(stderr,
@@ -2099,7 +2226,7 @@ static void set_fact_enable(int arg)
fprintf(stderr,
"Disable Intel Speed Select Technology turbo frequency feature\n");
fprintf(stderr,
- "Optional: -t|--trl : Specify turbo ratio limit\n");
+ "Optional: -t|--trl : Specify turbo ratio limit in hex starting with 0x\n");
fprintf(stderr,
"\tOptional Arguments: -a|--auto : Also disable core-power associations\n");
}
@@ -2206,6 +2333,14 @@ static void enable_clos_qos_config(struct isst_id *id, void *arg1, void *arg2, v
{
int ret;
int status = *(int *)arg4;
+ int cp_state, cp_cap;
+
+ if (!isst_read_pm_config(id, &cp_state, &cp_cap)) {
+ if (!cp_cap) {
+ isst_display_error_info_message(1, "core-power not supported", 0, 0);
+ return;
+ }
+ }
if (is_skx_based_platform())
clos_priority_type = 1;
@@ -2491,22 +2626,22 @@ static void set_turbo_mode_for_cpu(struct isst_id *id, int status)
}
if (status) {
- isst_display_result(id, outf, "turbo-mode", "enable", 0);
- } else {
isst_display_result(id, outf, "turbo-mode", "disable", 0);
+ } else {
+ isst_display_result(id, outf, "turbo-mode", "enable", 0);
}
}
static void set_turbo_mode(int arg)
{
- int i, enable = arg;
+ int i, disable = arg;
struct isst_id id;
if (cmd_help) {
- if (enable)
- fprintf(stderr, "Set turbo mode enable\n");
- else
+ if (disable)
fprintf(stderr, "Set turbo mode disable\n");
+ else
+ fprintf(stderr, "Set turbo mode enable\n");
exit(0);
}
@@ -2524,7 +2659,7 @@ static void set_turbo_mode(int arg)
if (online) {
set_isst_id(&id, i);
- set_turbo_mode_for_cpu(&id, enable);
+ set_turbo_mode_for_cpu(&id, disable);
}
}
@@ -2538,6 +2673,9 @@ static void get_set_trl(struct isst_id *id, void *arg1, void *arg2, void *arg3,
int set = *(int *)arg4;
int ret;
+ if (id->cpu < 0)
+ return;
+
if (set && !fact_trl) {
isst_display_error_info_message(1, "Invalid TRL. Specify with [-t|--trl]", 0, 0);
exit(0);
@@ -2561,7 +2699,7 @@ static void process_trl(int arg)
if (cmd_help) {
if (arg) {
fprintf(stderr, "Set TRL (turbo ratio limits)\n");
- fprintf(stderr, "\t t|--trl: Specify turbo ratio limit for setting TRL\n");
+ fprintf(stderr, "\t t|--trl: Specify turbo ratio limit for setting TRL in hex starting with 0x\n");
} else {
fprintf(stderr, "Get TRL (turbo ratio limits)\n");
}
@@ -2621,10 +2759,11 @@ static struct process_cmd_struct isst_cmds[] = {
*/
void parse_cpu_command(char *optarg)
{
- unsigned int start, end;
+ unsigned int start, end, invalid_count;
char *next;
next = optarg;
+ invalid_count = 0;
while (next && *next) {
if (*next == '-') /* no negative cpu numbers */
@@ -2634,6 +2773,8 @@ void parse_cpu_command(char *optarg)
if (max_target_cpus < MAX_CPUS_IN_ONE_REQ)
target_cpus[max_target_cpus++] = start;
+ else
+ invalid_count = 1;
if (*next == '\0')
break;
@@ -2660,6 +2801,8 @@ void parse_cpu_command(char *optarg)
while (++start <= end) {
if (max_target_cpus < MAX_CPUS_IN_ONE_REQ)
target_cpus[max_target_cpus++] = start;
+ else
+ invalid_count = 1;
}
if (*next == ',')
@@ -2668,6 +2811,13 @@ void parse_cpu_command(char *optarg)
goto error;
}
+ if (invalid_count) {
+ isst_ctdp_display_information_start(outf);
+ isst_display_error_info_message(1, "Too many CPUs in one request: max is", 1, MAX_CPUS_IN_ONE_REQ - 1);
+ isst_ctdp_display_information_end(outf);
+ exit(-1);
+ }
+
#ifdef DEBUG
{
int i;
@@ -2683,6 +2833,43 @@ error:
exit(-1);
}
+static void check_optarg(char *option, int hex)
+{
+ if (optarg) {
+ char *start = optarg;
+ int i;
+
+ if (hex && strlen(optarg) < 3) {
+ /* At least 0x plus one character must be present */
+ fprintf(stderr, "malformed arguments for:%s [%s]\n", option, optarg);
+ exit(0);
+ }
+
+ if (hex) {
+ if (optarg[0] != '0' || tolower(optarg[1]) != 'x') {
+ fprintf(stderr, "malformed arguments for:%s [%s]\n",
+ option, optarg);
+ exit(0);
+ }
+ start = &optarg[2];
+ }
+
+ for (i = 0; i < strlen(start); ++i) {
+ if (hex) {
+ if (!isxdigit(start[i])) {
+ fprintf(stderr, "malformed arguments for:%s [%s]\n",
+ option, optarg);
+ exit(0);
+ }
+ } else if (!isdigit(start[i])) {
+ fprintf(stderr, "malformed arguments for:%s [%s]\n",
+ option, optarg);
+ exit(0);
+ }
+ }
+ }
+}
+
static void parse_cmd_args(int argc, int start, char **argv)
{
int opt;
@@ -2716,18 +2903,21 @@ static void parse_cmd_args(int argc, int start, char **argv)
auto_mode = 1;
break;
case 'b':
+ check_optarg("bucket", 0);
fact_bucket = atoi(optarg);
break;
case 'h':
cmd_help = 1;
break;
case 'l':
+ check_optarg("level", 0);
tdp_level = atoi(optarg);
break;
case 'o':
force_online_offline = 1;
break;
case 't':
+ check_optarg("trl", 1);
sscanf(optarg, "0x%llx", &fact_trl);
break;
case 'r':
@@ -2744,13 +2934,16 @@ static void parse_cmd_args(int argc, int start, char **argv)
break;
/* CLOS related */
case 'c':
+ check_optarg("clos", 0);
current_clos = atoi(optarg);
break;
case 'd':
+ check_optarg("desired", 0);
clos_desired = atoi(optarg);
clos_desired /= isst_get_disp_freq_multiplier();
break;
case 'e':
+ check_optarg("epp", 0);
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);
@@ -2758,14 +2951,17 @@ static void parse_cmd_args(int argc, int start, char **argv)
}
break;
case 'n':
+ check_optarg("min", 0);
clos_min = atoi(optarg);
clos_min /= isst_get_disp_freq_multiplier();
break;
case 'm':
+ check_optarg("max", 0);
clos_max = atoi(optarg);
clos_max /= isst_get_disp_freq_multiplier();
break;
case 'p':
+ check_optarg("priority", 0);
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);
@@ -2773,6 +2969,7 @@ static void parse_cmd_args(int argc, int start, char **argv)
}
break;
case 'w':
+ check_optarg("weight", 0);
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);
@@ -2948,6 +3145,7 @@ static void usage(void)
printf("\t[-n|--no-daemon : Don't run as daemon. By default --oob will turn on daemon mode\n");
printf("\t[-w|--delay : Delay for reading config level state change in OOB poll mode.\n");
printf("\t[-g|--cgroupv2 : Try to use cgroup v2 CPU isolation instead of CPU online/offline.\n");
+ printf("\t[-u|--cpu0-workaround : Don't try to online/offline CPU0 instead use cgroup v2.\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");
@@ -3001,6 +3199,7 @@ static void cmdline(int argc, char **argv)
{ "no-daemon", no_argument, 0, 'n' },
{ "poll-interval", required_argument, 0, 'w' },
{ "cgroupv2", required_argument, 0, 'g' },
+ { "cpu0-workaround", required_argument, 0, 'u' },
{ 0, 0, 0, 0 }
};
@@ -3031,7 +3230,7 @@ static void cmdline(int argc, char **argv)
goto out;
progname = argv[0];
- while ((opt = getopt_long_only(argc, argv, "+c:df:hio:vabw:ng", long_options,
+ while ((opt = getopt_long_only(argc, argv, "+c:df:hio:vabw:ngu", long_options,
&option_index)) != -1) {
switch (opt) {
case 'a':
@@ -3093,6 +3292,9 @@ static void cmdline(int argc, char **argv)
case 'g':
cgroupv2 = 1;
break;
+ case 'u':
+ cpu_0_cgroupv2 = 1;
+ break;
default:
usage();
}
generated by cgit (git 2.34.1) at 2025-12-25 09:53:33 +0000