diff options
| author | Hamza Mahfooz <hamza.mahfooz@amd.com> | 2023-01-05 10:54:12 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-01-09 17:02:18 -0500 |
| commit | 13b90cf900ab69dd5cab3cc5035bc7614037e64e (patch) | |
| tree | 113770dcac3088a961abb15250e79dfdecf0c5ab /drivers/gpu/drm/amd/display/modules | |
| parent | 69939009bde70c87a4fa0d7e03e9d169ab853d88 (diff) | |
drm/amd/display: fix PSR-SU/DSC interoperability support
Currently, there are issues with enabling PSR-SU + DSC. This stems from
the fact that DSC imposes a slice height on transmitted video data and
we are not conforming to that slice height in PSR-SU regions. So, pass
slice_height into su_y_granularity to feed the DSC slice height into
PSR-SU code.
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/modules')
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/power/power_helpers.c | 31 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/power/power_helpers.h | 3 |
2 files changed, 34 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c index 9b5d9b2c9a6a..cf4fa87c7db6 100644 --- a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c +++ b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c @@ -916,3 +916,34 @@ bool mod_power_only_edp(const struct dc_state *context, const struct dc_stream_s { return context && context->stream_count == 1 && dc_is_embedded_signal(stream->signal); } + +bool psr_su_set_y_granularity(struct dc *dc, struct dc_link *link, + struct dc_stream_state *stream, + struct psr_config *config) +{ + uint16_t pic_height; + uint8_t slice_height; + + if ((link->connector_signal & SIGNAL_TYPE_EDP) && + (!dc->caps.edp_dsc_support || + link->panel_config.dsc.disable_dsc_edp || + !link->dpcd_caps.dsc_caps.dsc_basic_caps.fields.dsc_support.DSC_SUPPORT || + !stream->timing.dsc_cfg.num_slices_v)) + return true; + + pic_height = stream->timing.v_addressable + + stream->timing.v_border_top + stream->timing.v_border_bottom; + slice_height = pic_height / stream->timing.dsc_cfg.num_slices_v; + + if (slice_height) { + if (config->su_y_granularity && + (slice_height % config->su_y_granularity)) { + ASSERT(0); + return false; + } + + config->su_y_granularity = slice_height; + } + + return true; +} diff --git a/drivers/gpu/drm/amd/display/modules/power/power_helpers.h b/drivers/gpu/drm/amd/display/modules/power/power_helpers.h index 316452e9dbc9..bb16b37b83da 100644 --- a/drivers/gpu/drm/amd/display/modules/power/power_helpers.h +++ b/drivers/gpu/drm/amd/display/modules/power/power_helpers.h @@ -59,4 +59,7 @@ void mod_power_calc_psr_configs(struct psr_config *psr_config, const struct dc_stream_state *stream); bool mod_power_only_edp(const struct dc_state *context, const struct dc_stream_state *stream); +bool psr_su_set_y_granularity(struct dc *dc, struct dc_link *link, + struct dc_stream_state *stream, + struct psr_config *config); #endif /* MODULES_POWER_POWER_HELPERS_H_ */ |