From: Lewis Huang Lewis.Huang@amd.com
[ Upstream commit e5382701c3520b3ed66169a6e4aa6ce5df8c56e0 ]
[Why] The vm config will be clear to 0 when system enter S4. It will cause hubbub didn't know how to fetch data when system resume. The flip always pending because earliest_inuse_address and request_address are different.
[How] Reprogram VM config when system resume
Signed-off-by: Lewis Huang Lewis.Huang@amd.com Reviewed-by: Jun Lei Jun.Lei@amd.com Acked-by: Eric Yang eric.yang2@amd.com Acked-by: Leo Li sunpeng.li@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/display/dc/core/dc.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 0a7adc2925e35..191f5757ded1f 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -2016,6 +2016,14 @@ void dc_set_power_state( dc_resource_state_construct(dc, dc->current_state);
dc->hwss.init_hw(dc); + +#ifdef CONFIG_DRM_AMD_DC_DCN2_0 + if (dc->hwss.init_sys_ctx != NULL && + dc->vm_pa_config.valid) { + dc->hwss.init_sys_ctx(dc->hwseq, dc, &dc->vm_pa_config); + } +#endif + break; default: ASSERT(dc->current_state->stream_count == 0);