diff options
| author | Felipe Clark <felipe.clark@amd.com> | 2021-03-07 13:27:30 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-06-14 21:38:41 -0400 |
| commit | c2fbe663ec4f991832d67f936d3941f781884156 (patch) | |
| tree | 5c07defd0735bac8e62f7a7ee775bd7e3c1e9bac /drivers/gpu/drm/amd/display/dc/dc_stream.h | |
| parent | a34136a3b3526369e1b3e678590e3760e7653f0f (diff) | |
| download | linux-c2fbe663ec4f991832d67f936d3941f781884156.tar.bz2 | |
drm/amd/display: Firmware assisted MCLK switch and FS
[WHY]
Memory clock switching has great potential for power savings.
[HOW]
The driver code was modified to notify the DMCUB firmware that it should
stretch the vertical blank of frames when a memory clock switch is about
to start so that no blackouts happen on the screen due to unavailability
of the frame buffer.
The driver logic to determine when such firmware assisted strategy can
be initiated is also implemented and consists on checking prerequisites
of the feature.
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Felipe Clark <felipe.clark@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_stream.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_stream.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h index f8f66790d09b..68cf06a5a3e3 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_stream.h +++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h @@ -205,6 +205,7 @@ struct dc_stream_state { bool use_vsc_sdp_for_colorimetry; bool ignore_msa_timing_param; + bool allow_freesync; bool freesync_on_desktop; bool converter_disable_audio; @@ -295,9 +296,9 @@ struct dc_stream_update { struct dc_info_packet *vrr_infopacket; struct dc_info_packet *vsc_infopacket; struct dc_info_packet *vsp_infopacket; - bool *dpms_off; bool integer_scaling_update; + bool *allow_freesync; struct colorspace_transform *gamut_remap; enum dc_color_space *output_color_space; |