From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
Qingqing Zhuo <qingqing.zhuo@amd.com>,
amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
Wayne Lin <Wayne.Lin@amd.com>,
Alex Deucher <alexander.deucher@amd.com>,
Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Subject: [PATCH AUTOSEL 5.4 21/26] drm/amd/display: Fix to be able to stop crc calculation
Date: Tue, 19 Jan 2021 20:26:58 -0500 [thread overview]
Message-ID: <20210120012704.770095-21-sashal@kernel.org> (raw)
In-Reply-To: <20210120012704.770095-1-sashal@kernel.org>
From: Wayne Lin <Wayne.Lin@amd.com>
[ Upstream commit 02ce73b01e09e388614b22b7ebc71debf4a588f0 ]
[Why]
Find out when we try to disable CRC calculation,
crc generation is still enabled. Main reason is
that dc_stream_configure_crc() will never get
called when the source is AMDGPU_DM_PIPE_CRC_SOURCE_NONE.
[How]
Add checking condition that when source is
AMDGPU_DM_PIPE_CRC_SOURCE_NONE, we should also call
dc_stream_configure_crc() to disable crc calculation.
Also, clean up crc window when disable crc calculation.
Signed-off-by: Wayne Lin <Wayne.Lin@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c
index a549c7c717ddc..f0b001b3af578 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c
@@ -113,7 +113,7 @@ int amdgpu_dm_crtc_configure_crc_source(struct drm_crtc *crtc,
mutex_lock(&adev->dm.dc_lock);
/* Enable CRTC CRC generation if necessary. */
- if (dm_is_crc_source_crtc(source)) {
+ if (dm_is_crc_source_crtc(source) || source == AMDGPU_DM_PIPE_CRC_SOURCE_NONE) {
if (!dc_stream_configure_crc(stream_state->ctx->dc,
stream_state, enable, enable)) {
ret = -EINVAL;
--
2.27.0
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prev parent reply other threads:[~2021-01-20 1:27 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210120012704.770095-1-sashal@kernel.org>
2021-01-20 1:26 ` [PATCH AUTOSEL 5.4 20/26] drm/amdgpu/psp: fix psp gfx ctrl cmds Sasha Levin
2021-01-20 1:26 ` Sasha Levin [this message]
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