Commit 49aed155 authored by Prarit Bhargava's avatar Prarit Bhargava Committed by Andy Shevchenko
Browse files

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: default avatarPrarit Bhargava <prarit@redhat.com>
Acked-by: default avatarSrinivas 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: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
parent 76c2ef35

tools/power/x86/intel-speed-select/isst-display.c

+39 −0
Original line number Diff line number Diff line
@@ -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);