Commit e7d7b82d authored by Zhang Rui's avatar Zhang Rui
Browse files

tools/power/turbostat: Relocate lpi probing code 



Introduce probe_lpi(), and move all lpi probing related code into it.

Signed-off-by: default avatarZhang Rui <rui.zhang@intel.com>
Reviewed-by: default avatarLen Brown <len.brown@intel.com>
parent 2538d167

tools/power/x86/turbostat/turbostat.c

+22 −16
Original line number Diff line number Diff line
@@ -5374,6 +5374,26 @@ void probe_cstates(void) 
	dump_sysfs_cstate_config();

}



void probe_lpi(void)

{

	if (!access("/sys/devices/system/cpu/cpuidle/low_power_idle_cpu_residency_us", R_OK))

		BIC_PRESENT(BIC_CPU_LPI);

	else

		BIC_NOT_PRESENT(BIC_CPU_LPI);



	if (!access(sys_lpi_file_sysfs, R_OK)) {

		sys_lpi_file = sys_lpi_file_sysfs;

		BIC_PRESENT(BIC_SYS_LPI);

	} else if (!access(sys_lpi_file_debugfs, R_OK)) {

		sys_lpi_file = sys_lpi_file_debugfs;

		BIC_PRESENT(BIC_SYS_LPI);

	} else {

		sys_lpi_file_sysfs = NULL;

		BIC_NOT_PRESENT(BIC_SYS_LPI);

	}



}



void probe_pstates(void)

{

	probe_bclk();
@@ -5570,6 +5590,8 @@ void process_cpuid() 


	probe_cstates();



	probe_lpi();



	probe_intel_uncore_frequency();



	probe_graphics();
@@ -5579,27 +5601,11 @@ void process_cpuid() 
	if (platform->has_nhm_msrs)

		BIC_PRESENT(BIC_SMI);



	if (!access("/sys/devices/system/cpu/cpuidle/low_power_idle_cpu_residency_us", R_OK))

		BIC_PRESENT(BIC_CPU_LPI);

	else

		BIC_NOT_PRESENT(BIC_CPU_LPI);



	if (!access("/sys/devices/system/cpu/cpu0/thermal_throttle/core_throttle_count", R_OK))

		BIC_PRESENT(BIC_CORE_THROT_CNT);

	else

		BIC_NOT_PRESENT(BIC_CORE_THROT_CNT);



	if (!access(sys_lpi_file_sysfs, R_OK)) {

		sys_lpi_file = sys_lpi_file_sysfs;

		BIC_PRESENT(BIC_SYS_LPI);

	} else if (!access(sys_lpi_file_debugfs, R_OK)) {

		sys_lpi_file = sys_lpi_file_debugfs;

		BIC_PRESENT(BIC_SYS_LPI);

	} else {

		sys_lpi_file_sysfs = NULL;

		BIC_NOT_PRESENT(BIC_SYS_LPI);

	}



	if (!quiet)

		decode_misc_feature_control();