linux-kernel - [PATCH 2/2] drm/amd/display: Fix incorrect power gating configuration for DOMAIN11

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20241105140256.2465614-3-quzicheng@huawei.com>
Date: Tue, 5 Nov 2024 14:02:56 +0000
From: Zicheng Qu <quzicheng@...wei.com>
To: <harry.wentland@....com>, <sunpeng.li@....com>,
	<Rodrigo.Siqueira@....com>, <alexander.deucher@....com>,
	<christian.koenig@....com>, <Xinhui.Pan@....com>, <airlied@...il.com>,
	<simona@...ll.ch>, <Alvin.Lee2@....com>, <chiahsuan.chung@....com>,
	<alex.hung@....com>, <wenjing.liu@....com>, <Dillon.Varone@....com>,
	<george.shen@....com>, <mwen@...lia.com>, <yi-lchen@....com>,
	<martin.leung@....com>, <yongqiang.sun@....com>, <tony.cheng@....com>,
	<amd-gfx@...ts.freedesktop.org>, <dri-devel@...ts.freedesktop.org>,
	<linux-kernel@...r.kernel.org>
CC: <tanghui20@...wei.com>, <zhangqiao22@...wei.com>,
	<judy.chenhui@...wei.com>, <quzicheng@...wei.com>
Subject: [PATCH 2/2] drm/amd/display: Fix incorrect power gating configuration for DOMAIN11

The current implementation incorrectly updates DOMAIN11_PG_CONFIG with
DOMAIN9_POWER_FORCEON, which is not the intended behavior. This patch
corrects the power gating configuration by updating DOMAIN11_PG_CONFIG
with DOMAIN11_POWER_FORCEON, preventing potential issues related to
power management.

Fixes: 46825fcfbe16 ("drm/amd/display: avoid power gate domains that doesn't exist")
Signed-off-by: Zicheng Qu <quzicheng@...wei.com>
---
 drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c
index 67a77274d813..bc21eb0b2760 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c
@@ -327,7 +327,7 @@ void dcn20_enable_power_gating_plane(
 	if (REG(DOMAIN9_PG_CONFIG))
 		REG_UPDATE(DOMAIN9_PG_CONFIG, DOMAIN9_POWER_FORCEON, force_on);
 	if (REG(DOMAIN11_PG_CONFIG))
-		REG_UPDATE(DOMAIN11_PG_CONFIG, DOMAIN9_POWER_FORCEON, force_on);
+		REG_UPDATE(DOMAIN11_PG_CONFIG, DOMAIN11_POWER_FORCEON, force_on);
 
 	/* DCS0/1/2/3/4/5 */
 	REG_UPDATE(DOMAIN16_PG_CONFIG, DOMAIN16_POWER_FORCEON, force_on);
-- 
2.34.1