diff options
author | Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> | 2020-03-06 01:45:23 +0300 |
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committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-03-20 15:46:21 +0300 |
commit | ac9d05ea4cfb99dd24767f2510ca526282fffa13 (patch) | |
tree | a9890e0146da20f8132389603bfb5c9716d23ab1 /tools/power/x86/intel-speed-select | |
parent | 87e115b3256c1c5a324ab495eab722c0ec7d5c34 (diff) | |
download | linux-ac9d05ea4cfb99dd24767f2510ca526282fffa13.tar.xz |
tools/power/x86/intel-speed-select: Improve error display for perf-profile feature
This change adds improved error display and handling for commands related
to perf-profile feature. The changes include:
- When invalid TDP level is passed. display error and exit
- Replace perror with helpful error message
- Show error when TDP level can't be set
- Print error when information can't be read for a level
- Validate user options for invalid level
- Display error for TDP lock status
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/x86/intel-speed-select')
-rw-r--r-- | tools/power/x86/intel-speed-select/isst-config.c | 21 | ||||
-rw-r--r-- | tools/power/x86/intel-speed-select/isst-core.c | 33 |
2 files changed, 44 insertions, 10 deletions
diff --git a/tools/power/x86/intel-speed-select/isst-config.c b/tools/power/x86/intel-speed-select/isst-config.c index 360fa00f9c7a..4230a19664d3 100644 --- a/tools/power/x86/intel-speed-select/isst-config.c +++ b/tools/power/x86/intel-speed-select/isst-config.c @@ -1130,6 +1130,11 @@ static void dump_clx_n_config_for_cpu(int cpu, void *arg1, void *arg2, { int ret; + if (tdp_level != 0xff && tdp_level != 0) { + isst_display_error_info_message(1, "Invalid level", 1, tdp_level); + exit(0); + } + ret = clx_n_config(cpu); if (ret) { perror("isst_get_process_ctdp"); @@ -1154,7 +1159,9 @@ static void dump_isst_config_for_cpu(int cpu, void *arg1, void *arg2, memset(&pkg_dev, 0, sizeof(pkg_dev)); ret = isst_get_process_ctdp(cpu, tdp_level, &pkg_dev); if (ret) { - perror("isst_get_process_ctdp"); + isst_display_error_info_message(1, "Failed to get perf-profile info on cpu", 1, cpu); + isst_ctdp_display_information_end(outf); + exit(1); } else { isst_ctdp_display_information(cpu, outf, tdp_level, &pkg_dev); isst_get_process_ctdp_complete(cpu, &pkg_dev); @@ -1197,9 +1204,11 @@ static void set_tdp_level_for_cpu(int cpu, void *arg1, void *arg2, void *arg3, int ret; ret = isst_set_tdp_level(cpu, tdp_level); - if (ret) - perror("set_tdp_level_for_cpu"); - else { + if (ret) { + isst_display_error_info_message(1, "Set TDP level failed", 0, 0); + isst_ctdp_display_information_end(outf); + exit(1); + } else { isst_display_result(cpu, outf, "perf-profile", "set_tdp_level", ret); if (force_online_offline) { @@ -1237,11 +1246,13 @@ static void set_tdp_level(int arg) "\t Arguments: -l|--level : Specify tdp level\n"); fprintf(stderr, "\t Optional Arguments: -o | online : online/offline for the tdp level\n"); + fprintf(stderr, + "\t online/offline operation has limitations, refer to Linux hotplug documentation\n"); exit(0); } 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); } isst_ctdp_display_information_start(outf); diff --git a/tools/power/x86/intel-speed-select/isst-core.c b/tools/power/x86/intel-speed-select/isst-core.c index 81a119f688a3..2f3921cd87f3 100644 --- a/tools/power/x86/intel-speed-select/isst-core.c +++ b/tools/power/x86/intel-speed-select/isst-core.c @@ -114,8 +114,10 @@ int isst_get_tdp_info(int cpu, int config_index, ret = isst_send_mbox_command(cpu, CONFIG_TDP, CONFIG_TDP_GET_TDP_INFO, 0, config_index, &resp); - if (ret) + if (ret) { + isst_display_error_info_message(1, "Invalid level, Can't get TDP information at level", 1, config_index); return ret; + } ctdp_level->pkg_tdp = resp & GENMASK(14, 0); ctdp_level->tdp_ratio = (resp & GENMASK(23, 16)) >> 16; @@ -352,7 +354,7 @@ int isst_set_tdp_level_msr(int cpu, int tdp_level) debug_printf("cpu: tdp_level via MSR %d\n", cpu, tdp_level); if (isst_get_config_tdp_lock_status(cpu)) { - debug_printf("cpu: tdp_locked %d\n", cpu); + isst_display_error_info_message(1, "tdp_locked", 0, 0); return -1; } @@ -373,10 +375,19 @@ int isst_set_tdp_level(int cpu, int tdp_level) unsigned int resp; int ret; + + if (isst_get_config_tdp_lock_status(cpu)) { + isst_display_error_info_message(1, "TDP is locked", 0, 0); + return -1; + + } + ret = isst_send_mbox_command(cpu, CONFIG_TDP, CONFIG_TDP_SET_LEVEL, 0, tdp_level, &resp); - if (ret) - return isst_set_tdp_level_msr(cpu, tdp_level); + if (ret) { + isst_display_error_info_message(1, "Set TDP level failed for level", 1, tdp_level); + return ret; + } return 0; } @@ -671,7 +682,7 @@ void isst_get_process_ctdp_complete(int cpu, struct isst_pkg_ctdp *pkg_dev) int isst_get_process_ctdp(int cpu, int tdp_level, struct isst_pkg_ctdp *pkg_dev) { - int i, ret; + int i, ret, valid = 0; if (pkg_dev->processed) return 0; @@ -684,6 +695,14 @@ int isst_get_process_ctdp(int cpu, int tdp_level, struct isst_pkg_ctdp *pkg_dev) cpu, pkg_dev->enabled, pkg_dev->current_level, pkg_dev->levels); + if (tdp_level != 0xff && tdp_level > pkg_dev->levels) { + isst_display_error_info_message(1, "Invalid level", 0, 0); + return -1; + } + + if (!pkg_dev->enabled) + isst_display_error_info_message(0, "perf-profile feature is not supported, just base-config level 0 is valid", 0, 0); + for (i = 0; i <= pkg_dev->levels; ++i) { struct isst_pkg_ctdp_level_info *ctdp_level; @@ -703,6 +722,7 @@ int isst_get_process_ctdp(int cpu, int tdp_level, struct isst_pkg_ctdp *pkg_dev) if (ret) continue; + valid = 1; pkg_dev->processed = 1; ctdp_level->processed = 1; @@ -775,6 +795,9 @@ int isst_get_process_ctdp(int cpu, int tdp_level, struct isst_pkg_ctdp *pkg_dev) isst_get_uncore_mem_freq(cpu, i, ctdp_level); } + if (!valid) + isst_display_error_info_message(0, "Invalid level, Can't get TDP control information at specified levels on cpu", 1, cpu); + return 0; } |