diff options
author | Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> | 2019-09-14 12:45:44 -0700 |
---|---|---|
committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-09-19 14:51:29 +0300 |
commit | 3c64c81ad1f06823b603e9143193dcb4f3121a2f (patch) | |
tree | 73d2814f8eb8cd50175459bd79ded56cfe776e77 | |
parent | 44460efe44e05eae2f21e57d06d542bbbb792e65 (diff) |
tools/power/x86/intel-speed-select: Allow online/offline based on tdp
Using enable core mask, do online offline CPUs. There is a new option
--online|-o for set-config-level.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
-rw-r--r-- | tools/power/x86/intel-speed-select/isst-config.c | 60 | ||||
-rw-r--r-- | tools/power/x86/intel-speed-select/isst.h | 2 |
2 files changed, 58 insertions, 4 deletions
diff --git a/tools/power/x86/intel-speed-select/isst-config.c b/tools/power/x86/intel-speed-select/isst-config.c index 83ac72902b36..e505aaf2beef 100644 --- a/tools/power/x86/intel-speed-select/isst-config.c +++ b/tools/power/x86/intel-speed-select/isst-config.c @@ -38,6 +38,7 @@ 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; /* clos related */ static int current_clos = -1; @@ -138,14 +139,14 @@ int out_format_is_json(void) int get_physical_package_id(int cpu) { return parse_int_file( - 1, "/sys/devices/system/cpu/cpu%d/topology/physical_package_id", + 0, "/sys/devices/system/cpu/cpu%d/topology/physical_package_id", cpu); } int get_physical_core_id(int cpu) { return parse_int_file( - 1, "/sys/devices/system/cpu/cpu%d/topology/core_id", cpu); + 0, "/sys/devices/system/cpu/cpu%d/topology/core_id", cpu); } int get_physical_die_id(int cpu) @@ -165,6 +166,26 @@ 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; + + snprintf(buffer, sizeof(buffer), + "/sys/devices/system/cpu/cpu%d/online", cpu); + + fd = open(buffer, O_WRONLY); + if (fd < 0) + err(-1, "%s open failed", buffer); + + if (state) + write(fd, "1\n", 2); + else + write(fd, "0\n", 2); + + 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 *, @@ -736,9 +757,34 @@ static void set_tdp_level_for_cpu(int cpu, void *arg1, void *arg2, void *arg3, ret = isst_set_tdp_level(cpu, tdp_level); if (ret) perror("set_tdp_level_for_cpu"); - else + 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); + + fprintf(stderr, "Option is set to online/offline\n"); + ctdp_level.core_cpumask_size = + alloc_cpu_set(&ctdp_level.core_cpumask); + isst_get_coremask_info(cpu, tdp_level, &ctdp_level); + 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); + } else { + fprintf(stderr, "offline cpu %d\n", i); + set_cpu_online_offline(i, 0); + } + } + } + } + } } static void set_tdp_level(void) @@ -747,6 +793,8 @@ static void set_tdp_level(void) 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"); exit(0); } @@ -1319,6 +1367,7 @@ static void parse_cmd_args(int argc, int start, char **argv) 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' }, @@ -1335,7 +1384,7 @@ static void parse_cmd_args(int argc, int start, char **argv) option_index = start; optind = start + 1; - while ((opt = getopt_long(argc, argv, "b:l:t:c:d:e:n:m:p:w:h", + while ((opt = getopt_long(argc, argv, "b:l:t:c:d:e:n:m:p:w:ho", long_options, &option_index)) != -1) { switch (opt) { case 'b': @@ -1347,6 +1396,9 @@ static void parse_cmd_args(int argc, int start, char **argv) case 'l': tdp_level = atoi(optarg); break; + case 'o': + force_online_offline = 1; + break; case 't': sscanf(optarg, "0x%llx", &fact_trl); break; diff --git a/tools/power/x86/intel-speed-select/isst.h b/tools/power/x86/intel-speed-select/isst.h index 2f7f62765eb6..668f914d077f 100644 --- a/tools/power/x86/intel-speed-select/isst.h +++ b/tools/power/x86/intel-speed-select/isst.h @@ -187,6 +187,8 @@ extern int isst_send_msr_command(unsigned int cpu, unsigned int command, int write, unsigned long long *req_resp); extern int isst_get_ctdp_levels(int cpu, struct isst_pkg_ctdp *pkg_dev); +extern int isst_get_coremask_info(int cpu, int config_index, + struct isst_pkg_ctdp_level_info *ctdp_level); extern int isst_get_process_ctdp(int cpu, int tdp_level, struct isst_pkg_ctdp *pkg_dev); extern void isst_get_process_ctdp_complete(int cpu, |