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From: Dhananjay Ugwekar <Dhananjay.Ugwekar@amd.com>
To: <rafael@kernel.org>, <viresh.kumar@linaro.org>,
	<gautham.shenoy@amd.com>, <mario.limonciello@amd.com>,
	<perry.yuan@amd.com>, <skhan@linuxfoundation.org>,
	<li.meng@amd.com>, <ray.huang@amd.com>
Cc: <linux-pm@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	"Dhananjay Ugwekar" <Dhananjay.Ugwekar@amd.com>,
	David Arcari <darcari@redhat.com>
Subject: [PATCH v2 1/2] cpufreq/amd-pstate-ut: Convert nominal_freq to khz during comparisons
Date: Tue, 2 Jul 2024 08:14:13 +0000	[thread overview]
Message-ID: <20240702081413.5688-2-Dhananjay.Ugwekar@amd.com> (raw)
In-Reply-To: <20240702081413.5688-1-Dhananjay.Ugwekar@amd.com>

cpudata->nominal_freq being in MHz whereas other frequencies being in
KHz breaks the amd-pstate-ut frequency sanity check. This fixes it.

Fixes: e4731baaf294 ("cpufreq: amd-pstate: Fix the inconsistency in max frequency units")
Reported-by: David Arcari <darcari@redhat.com>
Signed-off-by: Dhananjay Ugwekar <Dhananjay.Ugwekar@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
---
 drivers/cpufreq/amd-pstate-ut.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/cpufreq/amd-pstate-ut.c b/drivers/cpufreq/amd-pstate-ut.c
index fc275d41d51e..66b73c308ce6 100644
--- a/drivers/cpufreq/amd-pstate-ut.c
+++ b/drivers/cpufreq/amd-pstate-ut.c
@@ -202,6 +202,7 @@ static void amd_pstate_ut_check_freq(u32 index)
 	int cpu = 0;
 	struct cpufreq_policy *policy = NULL;
 	struct amd_cpudata *cpudata = NULL;
+	u32 nominal_freq_khz;
 
 	for_each_possible_cpu(cpu) {
 		policy = cpufreq_cpu_get(cpu);
@@ -209,13 +210,14 @@ static void amd_pstate_ut_check_freq(u32 index)
 			break;
 		cpudata = policy->driver_data;
 
-		if (!((cpudata->max_freq >= cpudata->nominal_freq) &&
-			(cpudata->nominal_freq > cpudata->lowest_nonlinear_freq) &&
+		nominal_freq_khz = cpudata->nominal_freq*1000;
+		if (!((cpudata->max_freq >= nominal_freq_khz) &&
+			(nominal_freq_khz > cpudata->lowest_nonlinear_freq) &&
 			(cpudata->lowest_nonlinear_freq > cpudata->min_freq) &&
 			(cpudata->min_freq > 0))) {
 			amd_pstate_ut_cases[index].result = AMD_PSTATE_UT_RESULT_FAIL;
 			pr_err("%s cpu%d max=%d >= nominal=%d > lowest_nonlinear=%d > min=%d > 0, the formula is incorrect!\n",
-				__func__, cpu, cpudata->max_freq, cpudata->nominal_freq,
+				__func__, cpu, cpudata->max_freq, nominal_freq_khz,
 				cpudata->lowest_nonlinear_freq, cpudata->min_freq);
 			goto skip_test;
 		}
@@ -229,13 +231,13 @@ static void amd_pstate_ut_check_freq(u32 index)
 
 		if (cpudata->boost_supported) {
 			if ((policy->max == cpudata->max_freq) ||
-					(policy->max == cpudata->nominal_freq))
+					(policy->max == nominal_freq_khz))
 				amd_pstate_ut_cases[index].result = AMD_PSTATE_UT_RESULT_PASS;
 			else {
 				amd_pstate_ut_cases[index].result = AMD_PSTATE_UT_RESULT_FAIL;
 				pr_err("%s cpu%d policy_max=%d should be equal cpu_max=%d or cpu_nominal=%d !\n",
 					__func__, cpu, policy->max, cpudata->max_freq,
-					cpudata->nominal_freq);
+					nominal_freq_khz);
 				goto skip_test;
 			}
 		} else {
-- 
2.34.1


  reply	other threads:[~2024-07-02  8:15 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-02  8:14 [PATCH v2 0/2] AMD Pstate driver fixes Dhananjay Ugwekar
2024-07-02  8:14 ` Dhananjay Ugwekar [this message]
2024-07-02  8:14 ` [PATCH v2 2/2] cpufreq/amd-pstate: Fix the scaling_max_freq setting on shared memory CPPC systems Dhananjay Ugwekar
2024-07-02 17:49   ` Mario Limonciello
2024-09-03 17:51     ` Jones, Morgan
2024-09-03 17:54       ` Mario Limonciello
2024-09-03 20:07         ` [EXTERNAL] " Jones, Morgan
2024-09-03 20:09           ` Mario Limonciello
2024-09-03 20:51             ` Mario Limonciello
2024-09-03 20:52               ` Jones, Morgan
2024-09-03 22:21               ` Jones, Morgan
2024-09-03 22:24               ` Jones, Morgan
2024-09-04 13:57                 ` Mario Limonciello
2024-09-05 15:11                   ` Mario Limonciello
2024-09-05 21:09                     ` Jones, Morgan
2024-09-05 21:14                       ` linux-6.6.y regression on amd-pstate Mario Limonciello
2024-09-08 14:05                         ` Greg Kroah-Hartman
2024-09-08 14:12                           ` Christian Heusel
2024-09-08 14:29                             ` Greg Kroah-Hartman
2025-07-31 20:44                               ` [EXTERNAL] " Jones, Morgan
2025-08-01 12:32                                 ` Mario Limonciello
2024-09-03 20:52             ` [EXTERNAL] Re: [PATCH v2 2/2] cpufreq/amd-pstate: Fix the scaling_max_freq setting on shared memory CPPC systems Jones, Morgan
2024-07-03  5:46   ` Gautham R.Shenoy
2024-07-02  8:24 ` [PATCH v2 0/2] AMD Pstate driver fixes Dhananjay Ugwekar
2024-07-02 17:54   ` Mario Limonciello

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