This is a note to let you know that I've just added the patch titled drm/amd/display: Set hvm_enabled flag for S/G mode to the 6.2-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-amd-display-set-hvm_enabled-flag-for-s-g-mode.patch and it can be found in the queue-6.2 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit da95023c92c3c036f0c0119c8e8c0093d719119b Author: Roman Li <roman.li@xxxxxxx> Date: Thu Jan 5 17:44:10 2023 -0500 drm/amd/display: Set hvm_enabled flag for S/G mode [ Upstream commit 40e9f3f067bc6fb47b878f8ba0a9cc7b93abbf49 ] [Why] After enabling S/G on dcn314 a screen corruption may be observed. HostVM flag should be set in S/G mode to be included in DML calculations. [How] In S/G mode gpu_vm_support flag is set. Use its value to init is_hvm_enabled. Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@xxxxxxx> Acked-by: Alan Liu <HaoPing.Liu@xxxxxxx> Signed-off-by: Roman Li <roman.li@xxxxxxx> Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> 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 69f0ccc18aa82..027ffa5ccda46 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1239,7 +1239,7 @@ static void mmhub_read_system_context(struct amdgpu_device *adev, struct dc_phy_ pa_config->gart_config.page_table_end_addr = page_table_end.quad_part << 12; pa_config->gart_config.page_table_base_addr = page_table_base.quad_part; - pa_config->is_hvm_enabled = 0; + pa_config->is_hvm_enabled = adev->mode_info.gpu_vm_support; }