Add additional information, which will allow user to detect available
features. This will allow users to check presence of features before
continue to test.
A sample output:
$sudo ./intel-speed-select --info
Intel(R) Speed Select Technology
Executing on CPU model:85[0x55]
Platform: API version : 1
Platform: Driver version : 1
Platform: mbox supported : 1
Platform: mmio supported : 0
Intel(R) SST-PP (feature perf-profile) is not supported
Only performance level 0 (base level) is present
TDP level change control is locked
Intel(R) SST-TF (feature turbo-freq) is supported
Intel(R) SST-BF (feature base-freq) is supported
Intel(R) SST-CP (feature core-power) is supported
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx>
---
.../x86/intel-speed-select/isst-config.c | 74 +++++++++++++++++++
tools/power/x86/intel-speed-select/isst.h | 2 +
2 files changed, 76 insertions(+)
diff --git a/tools/power/x86/intel-speed-select/isst-config.c b/tools/power/x86/intel-speed-select/isst-config.c
index 5302a552f87f..65110d06394f 100644
--- a/tools/power/x86/intel-speed-select/isst-config.c
+++ b/tools/power/x86/intel-speed-select/isst-config.c
@@ -846,12 +846,85 @@ static int isst_fill_platform_info(void)
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);
@@ -867,6 +940,7 @@ static void isst_print_platform_information(void)
platform_info.mbox_supported);
fprintf(outf, "Platform: mmio supported : %d\n",
platform_info.mmio_supported);
+ isst_print_extended_platform_info();
}
close(fd);
diff --git a/tools/power/x86/intel-speed-select/isst.h b/tools/power/x86/intel-speed-select/isst.h
index 53e147a9a295..639d3d649480 100644
--- a/tools/power/x86/intel-speed-select/isst.h
+++ b/tools/power/x86/intel-speed-select/isst.h
@@ -196,6 +196,8 @@ 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_ctdp_control(int cpu, int config_index,
+ struct isst_pkg_ctdp_level_info *ctdp_level);
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,
--
2.24.1
