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Date: Tue, 22 Dec 2020 21:12:54 -0500 From: Sasha Levin <sashal@...nel.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Yifan Zhang <yifan1.zhang@....com>, Matt Coffin <mcoffin13@...il.com>, Alex Deucher <alexander.deucher@....com>, Roman Li <Roman.Li@....com>, Sasha Levin <sashal@...nel.org>, amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org Subject: [PATCH AUTOSEL 5.10 005/217] drm/amd/display: Fix the display corruption issue on Navi10 From: Yifan Zhang <yifan1.zhang@....com> [ Upstream commit 0b08c54bb7a37047a3a006e36c2270ebc62fef7d ] [Why] Screen corruption on Navi10 card [How] Set system context in DCN only on Renoir Tested-by: Matt Coffin <mcoffin13@...il.com> Acked-by: Alex Deucher <alexander.deucher@....com> Signed-off-by: Yifan Zhang <yifan1.zhang@....com> Reviewed-by: Roman Li <Roman.Li@....com> Signed-off-by: Alex Deucher <alexander.deucher@....com> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 547928cf284b5..96907707fdd94 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1085,10 +1085,14 @@ static int amdgpu_dm_init(struct amdgpu_device *adev) dc_hardware_init(adev->dm.dc); - mmhub_read_system_context(adev, &pa_config); +#if defined(CONFIG_DRM_AMD_DC_DCN) + if (adev->asic_type == CHIP_RENOIR) { + mmhub_read_system_context(adev, &pa_config); - // Call the DC init_memory func - dc_setup_system_context(adev->dm.dc, &pa_config); + // Call the DC init_memory func + dc_setup_system_context(adev->dm.dc, &pa_config); + } +#endif adev->dm.freesync_module = mod_freesync_create(adev->dm.dc); if (!adev->dm.freesync_module) { -- 2.27.0
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