From: Roman Li roman.li@amd.com
[ 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@amd.com Acked-by: Alan Liu HaoPing.Liu@amd.com Signed-off-by: Roman Li roman.li@amd.com Tested-by: Daniel Wheeler daniel.wheeler@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.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 6028e332e35d9..ed74cc7403980 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1248,7 +1248,7 @@ 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;
}