diff options
| author | Prarit Bhargava | 2019-09-05 08:03:09 -0400 |
|---|---|---|
| committer | Andy Shevchenko | 2019-09-07 21:19:13 +0300 |
| commit | 49aed155ec1b07f8820cceec7317c597a6f69c6e (patch) | |
| tree | c606bd020f6befd779fc082136874a8435d291d5 /tools/power | |
| parent | 76c2ef35f73913380f32d473a181d68decfca4f4 (diff) | |
tools/power/x86/intel-speed-select: Output human readable CPU list
The intel-speed-select tool currently only outputs a hexidecimal CPU mask,
which requires translation for use with kernel parameters such as
isolcpus.
Along with the CPU mask, output a human readable CPU list.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
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-display.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/tools/power/x86/intel-speed-select/isst-display.c b/tools/power/x86/intel-speed-select/isst-display.c index cfeee0beb78d..890a01bfee4b 100644 --- a/tools/power/x86/intel-speed-select/isst-display.c +++ b/tools/power/x86/intel-speed-select/isst-display.c @@ -8,6 +8,33 @@ #define DISP_FREQ_MULTIPLIER 100 +static void printcpulist(int str_len, char *str, int mask_size, + cpu_set_t *cpu_mask) +{ + int i, first, curr_index, index; + + if (!CPU_COUNT_S(mask_size, cpu_mask)) { + snprintf(str, str_len, "none"); + return; + } + + curr_index = 0; + first = 1; + for (i = 0; i < get_topo_max_cpus(); ++i) { + if (!CPU_ISSET_S(i, mask_size, cpu_mask)) + continue; + if (!first) { + index = snprintf(&str[curr_index], + str_len - curr_index, ","); + curr_index += index; + } + index = snprintf(&str[curr_index], str_len - curr_index, "%d", + i); + curr_index += index; + first = 0; + } +} + static void printcpumask(int str_len, char *str, int mask_size, cpu_set_t *cpu_mask) { @@ -166,6 +193,12 @@ static void _isst_pbf_display_information(int cpu, FILE *outf, int level, pbf_info->core_cpumask); format_and_print(outf, disp_level + 1, header, value); + snprintf(header, sizeof(header), "high-priority-cpu-list"); + printcpulist(sizeof(value), value, + pbf_info->core_cpumask_size, + pbf_info->core_cpumask); + format_and_print(outf, disp_level + 1, header, value); + snprintf(header, sizeof(header), "low-priority-base-frequency(MHz)"); snprintf(value, sizeof(value), "%d", pbf_info->p1_low * DISP_FREQ_MULTIPLIER); @@ -287,6 +320,12 @@ void isst_ctdp_display_information(int cpu, FILE *outf, int tdp_level, ctdp_level->core_cpumask); format_and_print(outf, base_level + 4, header, value); + snprintf(header, sizeof(header), "enable-cpu-list"); + printcpulist(sizeof(value), value, + ctdp_level->core_cpumask_size, + ctdp_level->core_cpumask); + format_and_print(outf, base_level + 4, header, value); + snprintf(header, sizeof(header), "thermal-design-power-ratio"); snprintf(value, sizeof(value), "%d", ctdp_level->tdp_ratio); format_and_print(outf, base_level + 4, header, value); |