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linux/debian/patches/patchset-pf/amd-pstate/0032-cpufreq-amd-pstate-Drop-cached-epp_policy-variable.patch

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2024-12-10 00:17:37 +03:00
From 06c52df851256238253ec286682cafbd5bb832d8 Mon Sep 17 00:00:00 2001
From: Mario Limonciello <mario.limonciello@amd.com>
Date: Thu, 5 Dec 2024 16:28:35 -0600
Subject: cpufreq/amd-pstate: Drop cached epp_policy variable
epp_policy is not used by any of the current code and there
is no need to cache it.
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
---
drivers/cpufreq/amd-pstate.c | 3 ---
drivers/cpufreq/amd-pstate.h | 2 --
2 files changed, 5 deletions(-)
--- a/drivers/cpufreq/amd-pstate.c
+++ b/drivers/cpufreq/amd-pstate.c
@@ -1506,7 +1506,6 @@ static int amd_pstate_epp_cpu_init(struc
return -ENOMEM;
cpudata->cpu = policy->cpu;
- cpudata->epp_policy = 0;
ret = amd_pstate_init_perf(cpudata);
if (ret)
@@ -1613,8 +1612,6 @@ static int amd_pstate_epp_update_limit(s
value &= ~AMD_CPPC_DES_PERF(~0L);
value |= AMD_CPPC_DES_PERF(0);
- cpudata->epp_policy = cpudata->policy;
-
/* Get BIOS pre-defined epp value */
epp = amd_pstate_get_epp(cpudata, value);
if (epp < 0) {
--- a/drivers/cpufreq/amd-pstate.h
+++ b/drivers/cpufreq/amd-pstate.h
@@ -57,7 +57,6 @@ struct amd_aperf_mperf {
* @hw_prefcore: check whether HW supports preferred core featue.
* Only when hw_prefcore and early prefcore param are true,
* AMD P-State driver supports preferred core featue.
- * @epp_policy: Last saved policy used to set energy-performance preference
* @epp_cached: Cached CPPC energy-performance preference value
* @policy: Cpufreq policy value
* @cppc_cap1_cached Cached MSR_AMD_CPPC_CAP1 register value
@@ -94,7 +93,6 @@ struct amd_cpudata {
bool hw_prefcore;
/* EPP feature related attributes*/
- s16 epp_policy;
s16 epp_cached;
u32 policy;
u64 cppc_cap1_cached;