From: Roman Li <roman.li@xxxxxxx> [ 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> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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 25ffc51ae6fa7..050e7a52c8f62 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1240,7 +1240,7 @@ 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; } -- 2.39.2
