diff options
| -rw-r--r-- | drivers/cpufreq/intel_pstate.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 6ff73c30769f..ad9be31753b6 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -298,6 +298,7 @@ static int hwp_active __read_mostly; static int hwp_mode_bdw __read_mostly; static bool per_cpu_limits __read_mostly; static bool hwp_boost __read_mostly; +static bool hwp_forced __read_mostly; static struct cpufreq_driver *intel_pstate_driver __read_mostly; @@ -1679,12 +1680,12 @@ static void intel_pstate_update_epp_defaults(struct cpudata *cpudata) return; /* - * If powerup EPP is something other than chipset default 0x80 and - * - is more performance oriented than 0x80 (default balance_perf EPP) + * If the EPP is set by firmware, which means that firmware enabled HWP + * - Is equal or less than 0x80 (default balance_perf EPP) * - But less performance oriented than performance EPP * then use this as new balance_perf EPP. */ - if (cpudata->epp_default < HWP_EPP_BALANCE_PERFORMANCE && + if (hwp_forced && cpudata->epp_default <= HWP_EPP_BALANCE_PERFORMANCE && cpudata->epp_default > HWP_EPP_PERFORMANCE) { epp_values[EPP_INDEX_BALANCE_PERFORMANCE] = cpudata->epp_default; return; @@ -3384,7 +3385,7 @@ static int __init intel_pstate_init(void) id = x86_match_cpu(hwp_support_ids); if (id) { - bool hwp_forced = intel_pstate_hwp_is_enabled(); + hwp_forced = intel_pstate_hwp_is_enabled(); if (hwp_forced) pr_info("HWP enabled by BIOS\n"); |