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cpufreq/amd-pstate: Drop cppc_cap1_cached

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The `cppc_cap1_cached` variable isn't used at all, there is no
need to read it at initialization for each CPU.

Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
Reviewed-by: Dhananjay Ugwekar <dhananjay.ugwekar@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
This commit is contained in:
Mario Limonciello 2024-12-07 00:28:41 -06:00
parent 6f0b13f16f
commit f458cf79d7
2 changed files with 0 additions and 7 deletions
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5
drivers/cpufreq/amd-pstate.c
View File

@ -1508,11 +1508,6 @@ static int amd_pstate_epp_cpu_init(struct cpufreq_policy *policy)
if (ret)
return ret;
WRITE_ONCE(cpudata->cppc_req_cached, value);
ret = rdmsrl_on_cpu(cpudata->cpu, MSR_AMD_CPPC_CAP1, &value);
if (ret)
return ret;
WRITE_ONCE(cpudata->cppc_cap1_cached, value);
}
ret = amd_pstate_set_epp(cpudata, cpudata->epp_default);
if (ret)

2
drivers/cpufreq/amd-pstate.h
View File

@ -76,7 +76,6 @@ struct amd_aperf_mperf {
* AMD P-State driver supports preferred core featue.
* @epp_cached: Cached CPPC energy-performance preference value
* @policy: Cpufreq policy value
* @cppc_cap1_cached Cached MSR_AMD_CPPC_CAP1 register value
*
* The amd_cpudata is key private data for each CPU thread in AMD P-State, and
* represents all the attributes and goals that AMD P-State requests at runtime.
@ -105,7 +104,6 @@ struct amd_cpudata {
/* EPP feature related attributes*/
u8 epp_cached;
u32 policy;
u64 cppc_cap1_cached;
bool suspended;
u8 epp_default;
};