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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-07 13:13:35 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-07 13:13:35 +0000 |
| commit | 9ea788653ae1a5cea3f3853c5c50b58c98b3cd67 (patch) | |
| tree | e1bf3b779c1dc9c5337c4442bf720073a3a53415 /drivers/cpufreq/intel_pstate.c | |
| parent | Adding upstream version 6.9.7. (diff) | |
| download | linux-9ea788653ae1a5cea3f3853c5c50b58c98b3cd67.tar.xz linux-9ea788653ae1a5cea3f3853c5c50b58c98b3cd67.zip | |
Adding upstream version 6.9.8.upstream/6.9.8
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/cpufreq/intel_pstate.c')
| -rw-r--r-- | drivers/cpufreq/intel_pstate.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index dbbf299f42..3405bf69b1 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -357,15 +357,14 @@ static void intel_pstate_set_itmt_prio(int cpu) int ret; ret = cppc_get_perf_caps(cpu, &cppc_perf); - if (ret) - return; - /* - * On some systems with overclocking enabled, CPPC.highest_perf is hardcoded to 0xff. - * In this case we can't use CPPC.highest_perf to enable ITMT. - * In this case we can look at MSR_HWP_CAPABILITIES bits [8:0] to decide. + * If CPPC is not available, fall back to MSR_HWP_CAPABILITIES bits [8:0]. + * + * Also, on some systems with overclocking enabled, CPPC.highest_perf is + * hardcoded to 0xff, so CPPC.highest_perf cannot be used to enable ITMT. + * Fall back to MSR_HWP_CAPABILITIES then too. */ - if (cppc_perf.highest_perf == CPPC_MAX_PERF) + if (ret || cppc_perf.highest_perf == CPPC_MAX_PERF) cppc_perf.highest_perf = HWP_HIGHEST_PERF(READ_ONCE(all_cpu_data[cpu]->hwp_cap_cached)); /* |