linux-kernel - [PATCH AUTOSEL 5.4 016/350] drm/amd/display: Rebuild mapped resources after pipe split

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: <20191210210402.8367-16-sashal@kernel.org>
Date:   Tue, 10 Dec 2019 15:58:28 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Mikita Lipski <mikita.lipski@....com>, Leo Li <sunpeng.li@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Sasha Levin <sashal@...nel.org>,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 5.4 016/350] drm/amd/display: Rebuild mapped resources after pipe split

From: Mikita Lipski <mikita.lipski@....com>

[ Upstream commit 387596ef2859c37d564ce15abddbc9063a132e2c ]

[why]
The issue is specific for linux, as on timings such as 8K@60
or 4K@144 DSC should be working in combination with ODM Combine
in order to ensure that we can run those timings. The validation
for those timings was passing, but when pipe split was happening
second pipe wasn't being programmed.

[how]
Rebuild mapped resources if we split stream for ODM.

Signed-off-by: Mikita Lipski <mikita.lipski@....com>
Acked-by: Leo Li <sunpeng.li@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index 3980c7b782599..ebe67c34dabf6 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -2474,6 +2474,7 @@ bool dcn20_fast_validate_bw(
 							&context->res_ctx, dc->res_pool,
 							pipe, hsplit_pipe))
 						goto validate_fail;
+					dcn20_build_mapped_resource(dc, context, pipe->stream);
 				} else
 					dcn20_split_stream_for_mpc(
 						&context->res_ctx, dc->res_pool,
-- 
2.20.1