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linux/debian/patches/patchset-pf/amd-pstate/0021-cpufreq-amd-pstate-Cleanup-the-old-min_freq-qos-requ.patch

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From f7b2b3a1c0d015c4272793bed89734c5cffb354c Mon Sep 17 00:00:00 2001
From: Dhananjay Ugwekar <Dhananjay.Ugwekar@amd.com>
Date: Thu, 3 Oct 2024 08:39:56 +0000
Subject: 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@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
---
drivers/cpufreq/amd-pstate.c | 19 ++++++++-----------
drivers/cpufreq/amd-pstate.h | 4 ++--
2 files changed, 10 insertions(+), 13 deletions(-)
--- a/drivers/cpufreq/amd-pstate.c
+++ b/drivers/cpufreq/amd-pstate.c
@@ -726,7 +726,7 @@ static int amd_pstate_cpu_boost_update(s
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);
}
@@ -993,17 +993,17 @@ static int amd_pstate_cpu_init(struct cp
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);
@@ -1025,11 +1025,11 @@ static int amd_pstate_cpu_init(struct cp
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;
@@ -1042,9 +1042,7 @@ static int amd_pstate_cpu_init(struct cp
return 0;
-free_cpudata2:
- freq_qos_remove_request(&cpudata->req[0]);
-free_cpudata1:
+free_cpudata:
kfree(cpudata);
return ret;
}
@@ -1053,8 +1051,7 @@ static void amd_pstate_cpu_exit(struct c
{
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);
}
--- 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;