30 lines
991 B
Diff
30 lines
991 B
Diff
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From fa46d2873c9fa4060ce407e4bc5c7e29babce9d0 Mon Sep 17 00:00:00 2001
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From: Mario Limonciello <mario.limonciello@amd.com>
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Date: Sat, 12 Oct 2024 12:45:19 -0500
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Subject: cpufreq/amd-pstate: Drop needless EPP initialization
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The EPP value doesn't need to be cached to the CPPC request in
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amd_pstate_epp_update_limit() because it's passed as an argument
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at the end to amd_pstate_set_epp() and stored at that time.
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Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
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---
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drivers/cpufreq/amd-pstate.c | 6 ------
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1 file changed, 6 deletions(-)
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--- a/drivers/cpufreq/amd-pstate.c
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+++ b/drivers/cpufreq/amd-pstate.c
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@@ -1548,12 +1548,6 @@ static int amd_pstate_epp_update_limit(s
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if (cpudata->policy == CPUFREQ_POLICY_PERFORMANCE)
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epp = 0;
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- /* Set initial EPP value */
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- if (cpu_feature_enabled(X86_FEATURE_CPPC)) {
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- value &= ~GENMASK_ULL(31, 24);
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- value |= (u64)epp << 24;
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- }
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-
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WRITE_ONCE(cpudata->cppc_req_cached, value);
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return amd_pstate_set_epp(cpudata, epp);
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}
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