diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 61 |
1 files changed, 36 insertions, 25 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c index 11da0eebee6c..941e96f100f4 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c @@ -27,6 +27,8 @@ #include <drm/display/drm_dp_mst_helper.h> #include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> +#include <drm/drm_fixed.h> +#include <drm/drm_edid.h> #include "dm_services.h" #include "amdgpu.h" #include "amdgpu_dm.h" @@ -44,7 +46,7 @@ #include "amdgpu_dm_debugfs.h" #endif -#include "dc/dcn20/dcn20_resource.h" +#include "dc/resource/dcn20/dcn20_resource.h" #define PEAK_FACTOR_X1000 1006 @@ -424,8 +426,7 @@ dm_mst_atomic_best_encoder(struct drm_connector *connector, { struct drm_connector_state *connector_state = drm_atomic_get_new_connector_state(state, connector); - struct drm_device *dev = connector->dev; - struct amdgpu_device *adev = drm_to_adev(dev); + struct amdgpu_device *adev = drm_to_adev(connector->dev); struct amdgpu_crtc *acrtc = to_amdgpu_crtc(connector_state->crtc); return &adev->dm.mst_encoders[acrtc->crtc_id].base; @@ -941,10 +942,10 @@ static int increase_dsc_bpp(struct drm_atomic_state *state, link_timeslots_used = 0; for (i = 0; i < count; i++) - link_timeslots_used += DIV_ROUND_UP(vars[i + k].pbn, mst_state->pbn_div); + link_timeslots_used += DIV_ROUND_UP(vars[i + k].pbn, dfixed_trunc(mst_state->pbn_div)); fair_pbn_alloc = - (63 - link_timeslots_used) / remaining_to_increase * mst_state->pbn_div; + (63 - link_timeslots_used) / remaining_to_increase * dfixed_trunc(mst_state->pbn_div); if (initial_slack[next_index] > fair_pbn_alloc) { vars[next_index].pbn += fair_pbn_alloc; @@ -1500,14 +1501,16 @@ int pre_validate_dsc(struct drm_atomic_state *state, int ind = find_crtc_index_in_state_by_stream(state, stream); if (ind >= 0) { + struct drm_connector *connector; struct amdgpu_dm_connector *aconnector; struct drm_connector_state *drm_new_conn_state; struct dm_connector_state *dm_new_conn_state; struct dm_crtc_state *dm_old_crtc_state; - aconnector = + connector = amdgpu_dm_find_first_crtc_matching_connector(state, state->crtcs[ind].ptr); + aconnector = to_amdgpu_dm_connector(connector); drm_new_conn_state = drm_atomic_get_new_connector_state(state, &aconnector->base); @@ -1602,9 +1605,8 @@ enum dc_status dm_dp_mst_is_port_support_mode( struct dc_link_settings cur_link_settings; unsigned int end_to_end_bw_in_kbps = 0; unsigned int upper_link_bw_in_kbps = 0, down_link_bw_in_kbps = 0; - unsigned int max_compressed_bw_in_kbps = 0; struct dc_dsc_bw_range bw_range = {0}; - uint16_t full_pbn = aconnector->mst_output_port->full_pbn; + struct dc_dsc_config_options dsc_options = {0}; /* * Consider the case with the depth of the mst topology tree is equal or less than 2 @@ -1620,30 +1622,39 @@ enum dc_status dm_dp_mst_is_port_support_mode( (aconnector->mst_output_port->passthrough_aux || aconnector->dsc_aux == &aconnector->mst_output_port->aux)) { cur_link_settings = stream->link->verified_link_cap; + upper_link_bw_in_kbps = dc_link_bandwidth_kbps(aconnector->dc_link, &cur_link_settings); + down_link_bw_in_kbps = kbps_from_pbn(aconnector->mst_output_port->full_pbn); - upper_link_bw_in_kbps = dc_link_bandwidth_kbps(aconnector->dc_link, - &cur_link_settings); - down_link_bw_in_kbps = kbps_from_pbn(full_pbn); - - /* pick the bottleneck */ - end_to_end_bw_in_kbps = min(upper_link_bw_in_kbps, - down_link_bw_in_kbps); - - /* - * use the maximum dsc compression bandwidth as the required - * bandwidth for the mode - */ - max_compressed_bw_in_kbps = bw_range.min_kbps; + /* pick the end to end bw bottleneck */ + end_to_end_bw_in_kbps = min(upper_link_bw_in_kbps, down_link_bw_in_kbps); - if (end_to_end_bw_in_kbps < max_compressed_bw_in_kbps) { - DRM_DEBUG_DRIVER("Mode does not fit into DSC pass-through bandwidth validation\n"); + if (end_to_end_bw_in_kbps < bw_range.min_kbps) { + DRM_DEBUG_DRIVER("maximum dsc compression cannot fit into end-to-end bandwidth\n"); return DC_FAIL_BANDWIDTH_VALIDATE; } + + if (end_to_end_bw_in_kbps < bw_range.stream_kbps) { + dc_dsc_get_default_config_option(stream->link->dc, &dsc_options); + dsc_options.max_target_bpp_limit_override_x16 = aconnector->base.display_info.max_dsc_bpp * 16; + if (dc_dsc_compute_config(stream->sink->ctx->dc->res_pool->dscs[0], + &stream->sink->dsc_caps.dsc_dec_caps, + &dsc_options, + end_to_end_bw_in_kbps, + &stream->timing, + dc_link_get_highest_encoding_format(stream->link), + &stream->timing.dsc_cfg)) { + stream->timing.flags.DSC = 1; + DRM_DEBUG_DRIVER("end-to-end bandwidth require dsc and dsc config found\n"); + } else { + DRM_DEBUG_DRIVER("end-to-end bandwidth require dsc but dsc config not found\n"); + return DC_FAIL_BANDWIDTH_VALIDATE; + } + } } else { /* check if mode could be supported within full_pbn */ bpp = convert_dc_color_depth_into_bpc(stream->timing.display_color_depth) * 3; - pbn = drm_dp_calc_pbn_mode(stream->timing.pix_clk_100hz / 10, bpp, false); - if (pbn > full_pbn) + pbn = drm_dp_calc_pbn_mode(stream->timing.pix_clk_100hz / 10, bpp << 4); + if (pbn > aconnector->mst_output_port->full_pbn) return DC_FAIL_BANDWIDTH_VALIDATE; } |