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authorSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>2020-03-05 14:45:24 -0800
committerAndy Shevchenko <andriy.shevchenko@linux.intel.com>2020-03-20 14:46:21 +0200
commit6c8edba37cc58f44e02f846c4ab50702b64564fd (patch)
tree8dad89649357d2c0accd36e08812b6bfbdef795d /tools/power
parentac9d05ea4cfb99dd24767f2510ca526282fffa13 (diff)
downloadlinux-6c8edba37cc58f44e02f846c4ab50702b64564fd.tar.bz2
tools/power/x86/intel-speed-select: Check feature status first
Before looking for information about the base-freq or turbo-freq details, first check if the feature is supported at that level. If not print error and return. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'tools/power')
-rw-r--r--tools/power/x86/intel-speed-select/isst-core.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/tools/power/x86/intel-speed-select/isst-core.c b/tools/power/x86/intel-speed-select/isst-core.c
index 2f3921cd87f3..732d9a5eacf1 100644
--- a/tools/power/x86/intel-speed-select/isst-core.c
+++ b/tools/power/x86/intel-speed-select/isst-core.c
@@ -394,9 +394,19 @@ int isst_set_tdp_level(int cpu, int tdp_level)
int isst_get_pbf_info(int cpu, int level, struct isst_pbf_info *pbf_info)
{
+ struct isst_pkg_ctdp_level_info ctdp_level;
int i, ret, core_cnt, max;
unsigned int req, resp;
+ ret = isst_get_ctdp_control(cpu, level, &ctdp_level);
+ if (ret)
+ return ret;
+
+ if (!ctdp_level.pbf_support) {
+ fprintf(stderr, "base-freq feature is not present at this level:%d\n", level);
+ return -1;
+ }
+
pbf_info->core_cpumask_size = alloc_cpu_set(&pbf_info->core_cpumask);
core_cnt = get_core_count(get_physical_package_id(cpu), get_physical_die_id(cpu));
@@ -492,6 +502,10 @@ int isst_set_pbf_fact_status(int cpu, int pbf, int enable)
else
req &= ~BIT(17);
} else {
+
+ if (enable && !ctdp_level.sst_cp_enabled)
+ fprintf(stderr, "Make sure to execute before: core-power enable\n");
+
if (ctdp_level.pbf_enabled)
req = BIT(17);
@@ -579,9 +593,19 @@ int isst_get_fact_bucket_info(int cpu, int level,
int isst_get_fact_info(int cpu, int level, struct isst_fact_info *fact_info)
{
+ struct isst_pkg_ctdp_level_info ctdp_level;
unsigned int resp;
int ret;
+ ret = isst_get_ctdp_control(cpu, level, &ctdp_level);
+ if (ret)
+ return ret;
+
+ if (!ctdp_level.fact_support) {
+ fprintf(stderr, "turbo-freq feature is not present at this level:%d\n", level);
+ return -1;
+ }
+
ret = isst_send_mbox_command(cpu, CONFIG_TDP,
CONFIG_TDP_GET_FACT_LP_CLIPPING_RATIO, 0,
level, &resp);