From: Lijo Lazar <lijo.lazar@amd.com>
Date: Wed, 20 Nov 2024 03:04:39 +0000 (+0530)
Subject: drm/amd/pm: Remove arcturus min power limit
X-Git-Tag: v6.12.4~6
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=08e5f8e1a24fb1f9ffa40a14dde335f05d9ece31;p=thirdparty%2Fkernel%2Fstable.git

drm/amd/pm: Remove arcturus min power limit

commit da868898cf4c5ddbd1f7406e356edce5d7211eb5 upstream.

As per power team, there is no need to impose a lower bound on arcturus
power limit. Any unreasonable limit set will result in frequent
throttling.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
index c0f6b59369b7c..d52512f5f1bd9 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
@@ -1344,8 +1344,12 @@ static int arcturus_get_power_limit(struct smu_context *smu,
 		*default_power_limit = power_limit;
 	if (max_power_limit)
 		*max_power_limit = power_limit;
+	/**
+	 * No lower bound is imposed on the limit. Any unreasonable limit set
+	 * will result in frequent throttling.
+	 */
 	if (min_power_limit)
-		*min_power_limit = power_limit;
+		*min_power_limit = 0;
 
 	return 0;
 }