linux-kernel - [PATCH v3 08/18] cpufreq/amd-pstate-ut: Allow lowest nonlinear and lowest to be the same

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Message-ID: <20250217220707.1468365-9-superm1@kernel.org>
Date: Mon, 17 Feb 2025 16:06:57 -0600
From: Mario Limonciello <superm1@...nel.org>
To: "Gautham R . Shenoy" <gautham.shenoy@....com>,
	Perry Yuan <perry.yuan@....com>
Cc: Dhananjay Ugwekar <Dhananjay.Ugwekar@....com>,
	linux-kernel@...r.kernel.org (open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)),
	linux-pm@...r.kernel.org (open list:CPU FREQUENCY SCALING FRAMEWORK),
	Mario Limonciello <mario.limonciello@....com>
Subject: [PATCH v3 08/18] cpufreq/amd-pstate-ut: Allow lowest nonlinear and lowest to be the same

From: Mario Limonciello <mario.limonciello@....com>

Several Ryzen AI processors support the exact same value for lowest
nonlinear perf and lowest perf.  Loosen up the unit tests to allow this
scenario.

Reviewed-by: Gautham R. Shenoy <gautham.shenoy@....com>
Signed-off-by: Mario Limonciello <mario.limonciello@....com>
---
 drivers/cpufreq/amd-pstate-ut.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/cpufreq/amd-pstate-ut.c b/drivers/cpufreq/amd-pstate-ut.c
index 9f790c7254d52..0f0b867e271cc 100644
--- a/drivers/cpufreq/amd-pstate-ut.c
+++ b/drivers/cpufreq/amd-pstate-ut.c
@@ -184,7 +184,7 @@ static void amd_pstate_ut_check_perf(u32 index)
 
 		if (!((highest_perf >= nominal_perf) &&
 			(nominal_perf > lowest_nonlinear_perf) &&
-			(lowest_nonlinear_perf > lowest_perf) &&
+			(lowest_nonlinear_perf >= lowest_perf) &&
 			(lowest_perf > 0))) {
 			amd_pstate_ut_cases[index].result = AMD_PSTATE_UT_RESULT_FAIL;
 			pr_err("%s cpu%d highest=%d >= nominal=%d > lowest_nonlinear=%d > lowest=%d > 0, the formula is incorrect!\n",
@@ -217,7 +217,7 @@ static void amd_pstate_ut_check_freq(u32 index)
 
 		if (!((policy->cpuinfo.max_freq >= cpudata->nominal_freq) &&
 			(cpudata->nominal_freq > cpudata->lowest_nonlinear_freq) &&
-			(cpudata->lowest_nonlinear_freq > policy->cpuinfo.min_freq) &&
+			(cpudata->lowest_nonlinear_freq >= policy->cpuinfo.min_freq) &&
 			(policy->cpuinfo.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",
-- 
2.43.0