linux-kernel - [PATCH v4 2/3] cpufreq/amd-pstate: Remove fast_switch

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Date:   Wed, 17 May 2023 16:28:16 +0000
From:   Wyes Karny <wyes.karny@....com>
To:     <ray.huang@....com>, <rafael@...nel.org>, <viresh.kumar@...aro.org>
CC:     <linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <gautham.shenoy@....com>, Wyes Karny <wyes.karny@....com>
Subject: [PATCH v4 2/3] cpufreq/amd-pstate: Remove fast_switch_possible flag from active driver

amd_pstate active mode driver is only compatible with static governors.
Therefore it doesn't need fast_switch functionality. Remove
fast_switch_possible flag from amd_pstate active mode driver.

Fixes: ffa5096a7c33 ("cpufreq: amd-pstate: implement Pstate EPP support for the AMD processors")
Signed-off-by: Wyes Karny <wyes.karny@....com>
---
 drivers/cpufreq/amd-pstate.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c
index 45711fc0a856..ac54779f5a49 100644
--- a/drivers/cpufreq/amd-pstate.c
+++ b/drivers/cpufreq/amd-pstate.c
@@ -1102,7 +1102,6 @@ static int amd_pstate_epp_cpu_init(struct cpufreq_policy *policy)
 	policy->policy = CPUFREQ_POLICY_POWERSAVE;
 
 	if (boot_cpu_has(X86_FEATURE_CPPC)) {
-		policy->fast_switch_possible = true;
 		ret = rdmsrl_on_cpu(cpudata->cpu, MSR_AMD_CPPC_REQ, &value);
 		if (ret)
 			return ret;
@@ -1125,7 +1124,6 @@ static int amd_pstate_epp_cpu_init(struct cpufreq_policy *policy)
 static int amd_pstate_epp_cpu_exit(struct cpufreq_policy *policy)
 {
 	pr_debug("CPU %d exiting\n", policy->cpu);
-	policy->fast_switch_possible = false;
 	return 0;
 }
 
-- 
2.34.1