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tools/power/x86/intel-speed-select: Read TRL from mailbox

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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>
This commit is contained in:
Srinivas Pandruvada 2020-11-23 16:56:05 -08:00 committed by Hans de Goede
parent dea5b80a04
commit 07f262d80d
2 changed files with 2 additions and 1 deletions
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2
tools/power/x86/intel-speed-select/isst-core.c
View File

@ -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);

1
tools/power/x86/intel-speed-select/isst.h
View File

@ -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