linux-kernel - [PATCH 3/3] cpufreq/amd-pstate: Cleanup the old min

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Message-ID: <20241003083952.3186-4-Dhananjay.Ugwekar@amd.com>
Date: Thu, 3 Oct 2024 08:39:56 +0000
From: Dhananjay Ugwekar <Dhananjay.Ugwekar@....com>
To: <gautham.shenoy@....com>, <mario.limonciello@....com>,
	<perry.yuan@....com>, <ray.huang@....com>, <rafael@...nel.org>,
	<viresh.kumar@...aro.org>
CC: <linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>, "Dhananjay
 Ugwekar" <Dhananjay.Ugwekar@....com>
Subject: [PATCH 3/3] cpufreq/amd-pstate: Cleanup the old min_freq qos request remnants

Convert the freq_qos_request array in struct amd_cpudata to a single
variable (only for max_freq request). Remove the references to cpudata->req
array. Remove and rename the jump labels accordingly.

Signed-off-by: Dhananjay Ugwekar <Dhananjay.Ugwekar@....com>
---
 drivers/cpufreq/amd-pstate.c | 19 ++++++++-----------
 drivers/cpufreq/amd-pstate.h |  4 ++--
 2 files changed, 10 insertions(+), 13 deletions(-)

diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c
index f8abae9a0156..cdc08d2ddd52 100644
--- a/drivers/cpufreq/amd-pstate.c
+++ b/drivers/cpufreq/amd-pstate.c
@@ -696,7 +696,7 @@ static int amd_pstate_cpu_boost_update(struct cpufreq_policy *policy, bool on)
 	policy->max = policy->cpuinfo.max_freq;
 
 	if (cppc_state == AMD_PSTATE_PASSIVE) {
-		ret = freq_qos_update_request(&cpudata->req[1], policy->cpuinfo.max_freq);
+		ret = freq_qos_update_request(&cpudata->max_freq_req, policy->cpuinfo.max_freq);
 		if (ret < 0)
 			pr_debug("Failed to update freq constraint: CPU%d\n", cpudata->cpu);
 	}
@@ -963,17 +963,17 @@ static int amd_pstate_cpu_init(struct cpufreq_policy *policy)
 
 	ret = amd_pstate_init_perf(cpudata);
 	if (ret)
-		goto free_cpudata1;
+		goto free_cpudata;
 
 	amd_pstate_init_prefcore(cpudata);
 
 	ret = amd_pstate_init_freq(cpudata);
 	if (ret)
-		goto free_cpudata1;
+		goto free_cpudata;
 
 	ret = amd_pstate_init_boost_support(cpudata);
 	if (ret)
-		goto free_cpudata1;
+		goto free_cpudata;
 
 	min_freq = READ_ONCE(cpudata->min_freq);
 	max_freq = READ_ONCE(cpudata->max_freq);
@@ -995,11 +995,11 @@ static int amd_pstate_cpu_init(struct cpufreq_policy *policy)
 	if (cpu_feature_enabled(X86_FEATURE_CPPC))
 		policy->fast_switch_possible = true;
 
-	ret = freq_qos_add_request(&policy->constraints, &cpudata->req[1],
+	ret = freq_qos_add_request(&policy->constraints, &cpudata->max_freq_req,
 				   FREQ_QOS_MAX, policy->cpuinfo.max_freq);
 	if (ret < 0) {
 		dev_err(dev, "Failed to add max-freq constraint (%d)\n", ret);
-		goto free_cpudata2;
+		goto free_cpudata;
 	}
 
 	cpudata->max_limit_freq = max_freq;
@@ -1012,9 +1012,7 @@ static int amd_pstate_cpu_init(struct cpufreq_policy *policy)
 
 	return 0;
 
-free_cpudata2:
-	freq_qos_remove_request(&cpudata->req[0]);
-free_cpudata1:
+free_cpudata:
 	kfree(cpudata);
 	return ret;
 }
@@ -1023,8 +1021,7 @@ static void amd_pstate_cpu_exit(struct cpufreq_policy *policy)
 {
 	struct amd_cpudata *cpudata = policy->driver_data;
 
-	freq_qos_remove_request(&cpudata->req[1]);
-	freq_qos_remove_request(&cpudata->req[0]);
+	freq_qos_remove_request(&cpudata->max_freq_req);
 	policy->fast_switch_possible = false;
 	kfree(cpudata);
 }
diff --git a/drivers/cpufreq/amd-pstate.h b/drivers/cpufreq/amd-pstate.h
index cd573bc6b6db..643e2a71827d 100644
--- a/drivers/cpufreq/amd-pstate.h
+++ b/drivers/cpufreq/amd-pstate.h
@@ -28,7 +28,7 @@ struct amd_aperf_mperf {
 /**
  * struct amd_cpudata - private CPU data for AMD P-State
  * @cpu: CPU number
- * @req: constraint request to apply
+ * @max_freq_req: maximum frequency constraint request to apply
  * @cppc_req_cached: cached performance request hints
  * @highest_perf: the maximum performance an individual processor may reach,
  *		  assuming ideal conditions
@@ -68,7 +68,7 @@ struct amd_aperf_mperf {
 struct amd_cpudata {
 	int	cpu;
 
-	struct	freq_qos_request req[2];
+	struct	freq_qos_request max_freq_req;
 	u64	cppc_req_cached;
 
 	u32	highest_perf;
-- 
2.34.1