diff options
| -rw-r--r-- | arch/x86/kernel/smpboot.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 8cb3113377a9..3e32d620f1fb 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -1795,6 +1795,10 @@ void native_play_dead(void) * which would ignore the entire turbo range (a conspicuous part, making * freq_curr/freq_max always maxed out). * + * An exception to the heuristic above is the Atom uarch, where we choose the + * highest turbo level for freq_max since Atom's are generally oriented towards + * power efficiency. + * * Setting freq_max to anything less than the 1C turbo ratio makes the ratio * freq_curr / freq_max to eventually grow >1, in which case we clip it to 1. */ @@ -1937,18 +1941,18 @@ static bool intel_set_max_freq_ratio(void) /* * TODO: add support for: * - * - Atom Goldmont * - Atom Silvermont */ u64 base_freq = 1, turbo_freq = 1; - if (x86_match_cpu(has_glm_turbo_ratio_limits)) - return false; - if (turbo_disabled()) goto out; + if (x86_match_cpu(has_glm_turbo_ratio_limits) && + skx_set_max_freq_ratio(&base_freq, &turbo_freq, 1)) + goto out; + if (knl_set_max_freq_ratio(&base_freq, &turbo_freq, 1)) goto out; |