[PATCH 3/4] cpufreq/amd-pstate: Use amd_pstate_update_min_max_limit() for EPP limits

[Mario Limonciello <mario.limonciello@amd.com>]

When the EPP updates are set the maximum capable frequency for the
CPU is used to set the upper limit instead of that of the policy.

Adjust amd_pstate_epp_update_limit() to reuse policy calculation code
from amd_pstate_update_min_max_limit().

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
 drivers/cpufreq/amd-pstate.c | 19 +++----------------
 1 file changed, 3 insertions(+), 16 deletions(-)

diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c
index 13dec8b1e7a8..8d2541f2c74b 100644
--- a/drivers/cpufreq/amd-pstate.c
+++ b/drivers/cpufreq/amd-pstate.c
@@ -1485,26 +1485,13 @@ static void amd_pstate_epp_cpu_exit(struct cpufreq_policy *policy)
 static int amd_pstate_epp_update_limit(struct cpufreq_policy *policy)
 {
 	struct amd_cpudata *cpudata = policy->driver_data;
-	u32 max_perf, min_perf, min_limit_perf, max_limit_perf;
+	u32 max_perf, min_perf;
 	u64 value;
 	s16 epp;
 
-	if (cpudata->boost_supported && !policy->boost_enabled)
-		max_perf = READ_ONCE(cpudata->nominal_perf);
-	else
-		max_perf = READ_ONCE(cpudata->highest_perf);
+	max_perf = READ_ONCE(cpudata->highest_perf);
 	min_perf = READ_ONCE(cpudata->lowest_perf);
-	max_limit_perf = div_u64(policy->max * max_perf, policy->cpuinfo.max_freq);
-	min_limit_perf = div_u64(policy->min * max_perf, policy->cpuinfo.max_freq);
-
-	if (min_limit_perf < min_perf)
-		min_limit_perf = min_perf;
-
-	if (max_limit_perf < min_limit_perf)
-		max_limit_perf = min_limit_perf;
-
-	WRITE_ONCE(cpudata->max_limit_perf, max_limit_perf);
-	WRITE_ONCE(cpudata->min_limit_perf, min_limit_perf);
+	amd_pstate_update_min_max_limit(policy);
 
 	max_perf = clamp_t(unsigned long, max_perf, cpudata->min_limit_perf,
 			cpudata->max_limit_perf);
-- 
2.43.0