tools/power/x86/intel-speed-select: Read TRL from mailbox (07f262d8) · Commits · 戴 / test

When SST-PP feature is not present, the TRL (Turbo Ratio Limits) is read from MSRs. This is done as the mailbox command will fail on Skylake-X based platform. But for IceLake servers, mailbox commands can still be used. So add a check to allow for non Skylake based platforms to read from mail box commands. Signed-off-by:

Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://lore.kernel.org/platform-driver-x86/57d6648282491906e0e1f70fe3b9a44f72cec90d.camel@intel.com/ Signed-off-by:

Hans de Goede <hdegoede@redhat.com>

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

+1 −1

Original line number	Diff line number	Diff line
		@@ -804,7 +804,7 @@ int isst_get_process_ctdp(int cpu, int tdp_level, struct isst_pkg_ctdp *pkg_dev)
		return ret;
		}

		if (!pkg_dev->enabled) {
		if (!pkg_dev->enabled && is_skx_based_platform()) {
		int freq;

		freq = get_cpufreq_base_freq(cpu);

tools/power/x86/intel-speed-select/isst.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -255,4 +255,5 @@ extern int is_clx_n_platform(void);
		extern int get_cpufreq_base_freq(int cpu);
		extern int isst_read_pm_config(int cpu, int cp_state, int cp_cap);
		extern void isst_display_error_info_message(int error, char *msg, int arg_valid, int arg);
		extern int is_skx_based_platform(void);
		#endif

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