From 39bae0fce48f6431ceb3ab9cff91cb749c736c48 Mon Sep 17 00:00:00 2001 From: Srinivas Pandruvada Date: Thu, 5 Mar 2020 14:45:28 -0800 Subject: tools/power/x86/intel-speed-select: Improve error display for base-freq feature This change adds improved error display and handling for commands related to base-freq feature. The changes include: - Replace perror/fprintf with helpful error message - Error for not specifying TDP level when required - For CLX show help which shows limitation Signed-off-by: Srinivas Pandruvada Signed-off-by: Andy Shevchenko --- tools/power/x86/intel-speed-select/isst-config.c | 25 ++++++++++++++++++++---- tools/power/x86/intel-speed-select/isst-core.c | 14 ++++++++++++- 2 files changed, 34 insertions(+), 5 deletions(-) (limited to 'tools/power') diff --git a/tools/power/x86/intel-speed-select/isst-config.c b/tools/power/x86/intel-speed-select/isst-config.c index 362a352e6266..95602f98a138 100644 --- a/tools/power/x86/intel-speed-select/isst-config.c +++ b/tools/power/x86/intel-speed-select/isst-config.c @@ -1276,7 +1276,7 @@ static void clx_n_dump_pbf_config_for_cpu(int cpu, void *arg1, void *arg2, ret = clx_n_config(cpu); if (ret) { - perror("isst_get_process_ctdp"); + 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; @@ -1297,7 +1297,9 @@ static void dump_pbf_config_for_cpu(int cpu, void *arg1, void *arg2, void *arg3, ret = isst_get_pbf_info(cpu, tdp_level, &pbf_info); if (ret) { - perror("isst_get_pbf_info"); + 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); @@ -1317,7 +1319,7 @@ static void dump_pbf_config(int arg) } if (tdp_level == 0xff) { - fprintf(outf, "Invalid command: specify tdp_level\n"); + isst_display_error_info_message(1, "Invalid command: specify tdp_level", 0, 0); exit(1); } @@ -1635,7 +1637,7 @@ static void set_pbf_for_cpu(int cpu, void *arg1, void *arg2, void *arg3, ret = isst_set_pbf_fact_status(cpu, 1, status); if (ret) { - perror("isst_set_pbf"); + debug_printf("isst_set_pbf_fact_status failed"); if (auto_mode) isst_pm_qos_config(cpu, 0, 0); } else { @@ -1667,10 +1669,25 @@ static void set_pbf_enable(int arg) 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, diff --git a/tools/power/x86/intel-speed-select/isst-core.c b/tools/power/x86/intel-speed-select/isst-core.c index f69c009ef6f6..7836f9f08af1 100644 --- a/tools/power/x86/intel-speed-select/isst-core.c +++ b/tools/power/x86/intel-speed-select/isst-core.c @@ -395,15 +395,27 @@ 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; + struct isst_pkg_ctdp pkg_dev; int i, ret, core_cnt, max; unsigned int req, resp; + ret = isst_get_ctdp_levels(cpu, &pkg_dev); + if (ret) { + isst_display_error_info_message(1, "Failed to get number of levels", 0, 0); + return ret; + } + + if (level > pkg_dev.levels) { + isst_display_error_info_message(1, "Invalid level", 1, level); + return -1; + } + 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); + isst_display_error_info_message(1, "base-freq feature is not present at this level", 1, level); return -1; } -- cgit v1.2.3-58-ga151