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drm/amd/display: Add DP 2.0 MST DC Support
[Why] configure/call DC interface for DP2 mst support. This is needed to make DP2 mst work. [How] - add encoding type, logging, mst update/reduce payload functions Use the link encoding to determine the DP type (1.4 or 2.0) and add a flag to dc_stream_update to determine whether to increase/reduce payloads. v2: * add DP_UNKNOWN_ENCODING handling Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com> Reviewed-by: "Lin, Wayne" <Wayne.Lin@amd.com> Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211025223825.301703-4-lyude@redhat.com
This commit is contained in:
Fangzhi Zuo
Lyude Paul
parent
d6c6a76f80
commit
d740e0bf8e
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@ -2356,6 +2356,11 @@ static enum surface_update_type check_update_surfaces_for_stream(
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if (stream_update->dsc_config)
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su_flags->bits.dsc_changed = 1;
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#if defined(CONFIG_DRM_AMD_DC_DCN)
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if (stream_update->mst_bw_update)
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su_flags->bits.mst_bw = 1;
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#endif
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if (su_flags->raw != 0)
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overall_type = UPDATE_TYPE_FULL;
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@ -2741,6 +2746,15 @@ static void commit_planes_do_stream_update(struct dc *dc,
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if (stream_update->dsc_config)
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dp_update_dsc_config(pipe_ctx);
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#if defined(CONFIG_DRM_AMD_DC_DCN)
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if (stream_update->mst_bw_update) {
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if (stream_update->mst_bw_update->is_increase)
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dc_link_increase_mst_payload(pipe_ctx, stream_update->mst_bw_update->mst_stream_bw);
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else
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dc_link_reduce_mst_payload(pipe_ctx, stream_update->mst_bw_update->mst_stream_bw);
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}
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#endif
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if (stream_update->pending_test_pattern) {
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dc_link_dp_set_test_pattern(stream->link,
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stream->test_pattern.type,
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@ -3272,6 +3272,9 @@ static struct fixed31_32 get_pbn_from_timing(struct pipe_ctx *pipe_ctx)
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static void update_mst_stream_alloc_table(
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struct dc_link *link,
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struct stream_encoder *stream_enc,
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#if defined(CONFIG_DRM_AMD_DC_DCN)
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struct hpo_dp_stream_encoder *hpo_dp_stream_enc, // TODO: Rename stream_enc to dio_stream_enc?
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#endif
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const struct dp_mst_stream_allocation_table *proposed_table)
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{
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struct link_mst_stream_allocation work_table[MAX_CONTROLLER_NUM] = {
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@ -3308,6 +3311,9 @@ static void update_mst_stream_alloc_table(
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work_table[i].slot_count =
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proposed_table->stream_allocations[i].slot_count;
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work_table[i].stream_enc = stream_enc;
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#if defined(CONFIG_DRM_AMD_DC_DCN)
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work_table[i].hpo_dp_stream_enc = hpo_dp_stream_enc;
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#endif
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}
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}
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@ -3430,6 +3436,10 @@ enum dc_status dc_link_allocate_mst_payload(struct pipe_ctx *pipe_ctx)
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struct dc_link *link = stream->link;
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struct link_encoder *link_encoder = NULL;
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struct stream_encoder *stream_encoder = pipe_ctx->stream_res.stream_enc;
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#if defined(CONFIG_DRM_AMD_DC_DCN)
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struct hpo_dp_link_encoder *hpo_dp_link_encoder = link->hpo_dp_link_enc;
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struct hpo_dp_stream_encoder *hpo_dp_stream_encoder = pipe_ctx->stream_res.hpo_dp_stream_enc;
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#endif
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struct dp_mst_stream_allocation_table proposed_table = {0};
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struct fixed31_32 avg_time_slots_per_mtp;
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struct fixed31_32 pbn;
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@ -3457,7 +3467,14 @@ enum dc_status dc_link_allocate_mst_payload(struct pipe_ctx *pipe_ctx)
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&proposed_table,
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true)) {
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update_mst_stream_alloc_table(
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#if defined(CONFIG_DRM_AMD_DC_DCN)
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link,
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pipe_ctx->stream_res.stream_enc,
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pipe_ctx->stream_res.hpo_dp_stream_enc,
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&proposed_table);
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#else
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link, pipe_ctx->stream_res.stream_enc, &proposed_table);
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#endif
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}
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else
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DC_LOG_WARNING("Failed to update"
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@ -3471,6 +3488,20 @@ enum dc_status dc_link_allocate_mst_payload(struct pipe_ctx *pipe_ctx)
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link->mst_stream_alloc_table.stream_count);
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for (i = 0; i < MAX_CONTROLLER_NUM; i++) {
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#if defined(CONFIG_DRM_AMD_DC_DCN)
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DC_LOG_MST("stream_enc[%d]: %p "
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"stream[%d].hpo_dp_stream_enc: %p "
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"stream[%d].vcp_id: %d "
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"stream[%d].slot_count: %d\n",
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i,
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(void *) link->mst_stream_alloc_table.stream_allocations[i].stream_enc,
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i,
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(void *) link->mst_stream_alloc_table.stream_allocations[i].hpo_dp_stream_enc,
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i,
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link->mst_stream_alloc_table.stream_allocations[i].vcp_id,
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i,
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link->mst_stream_alloc_table.stream_allocations[i].slot_count);
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#else
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DC_LOG_MST("stream_enc[%d]: %p "
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"stream[%d].vcp_id: %d "
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"stream[%d].slot_count: %d\n",
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@ -3480,14 +3511,33 @@ enum dc_status dc_link_allocate_mst_payload(struct pipe_ctx *pipe_ctx)
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link->mst_stream_alloc_table.stream_allocations[i].vcp_id,
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i,
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link->mst_stream_alloc_table.stream_allocations[i].slot_count);
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#endif
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}
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ASSERT(proposed_table.stream_count > 0);
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/* program DP source TX for payload */
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#if defined(CONFIG_DRM_AMD_DC_DCN)
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switch (dp_get_link_encoding_format(&link->cur_link_settings)) {
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case DP_8b_10b_ENCODING:
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link_encoder->funcs->update_mst_stream_allocation_table(
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link_encoder,
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&link->mst_stream_alloc_table);
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break;
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case DP_128b_132b_ENCODING:
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hpo_dp_link_encoder->funcs->update_stream_allocation_table(
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hpo_dp_link_encoder,
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&link->mst_stream_alloc_table);
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break;
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case DP_UNKNOWN_ENCODING:
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DC_LOG_ERROR("Failure: unknown encoding format\n");
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return DC_ERROR_UNEXPECTED;
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}
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#else
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link_encoder->funcs->update_mst_stream_allocation_table(
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link_encoder,
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&link->mst_stream_alloc_table);
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#endif
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/* send down message */
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ret = dm_helpers_dp_mst_poll_for_allocation_change_trigger(
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@ -3510,20 +3560,202 @@ enum dc_status dc_link_allocate_mst_payload(struct pipe_ctx *pipe_ctx)
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pbn = get_pbn_from_timing(pipe_ctx);
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avg_time_slots_per_mtp = dc_fixpt_div(pbn, pbn_per_slot);
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#if defined(CONFIG_DRM_AMD_DC_DCN)
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switch (dp_get_link_encoding_format(&link->cur_link_settings)) {
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case DP_8b_10b_ENCODING:
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stream_encoder->funcs->set_throttled_vcp_size(
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stream_encoder,
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avg_time_slots_per_mtp);
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break;
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case DP_128b_132b_ENCODING:
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hpo_dp_link_encoder->funcs->set_throttled_vcp_size(
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hpo_dp_link_encoder,
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hpo_dp_stream_encoder->inst,
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avg_time_slots_per_mtp);
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break;
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case DP_UNKNOWN_ENCODING:
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DC_LOG_ERROR("Failure: unknown encoding format\n");
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return DC_ERROR_UNEXPECTED;
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}
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#else
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stream_encoder->funcs->set_throttled_vcp_size(
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stream_encoder,
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avg_time_slots_per_mtp);
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#endif
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return DC_OK;
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}
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#if defined(CONFIG_DRM_AMD_DC_DCN)
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enum dc_status dc_link_reduce_mst_payload(struct pipe_ctx *pipe_ctx, uint32_t bw_in_kbps)
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{
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struct dc_stream_state *stream = pipe_ctx->stream;
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struct dc_link *link = stream->link;
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struct fixed31_32 avg_time_slots_per_mtp;
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struct fixed31_32 pbn;
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struct fixed31_32 pbn_per_slot;
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struct link_encoder *link_encoder = link->link_enc;
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struct stream_encoder *stream_encoder = pipe_ctx->stream_res.stream_enc;
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struct dp_mst_stream_allocation_table proposed_table = {0};
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uint8_t i;
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enum act_return_status ret;
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DC_LOGGER_INIT(link->ctx->logger);
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/* decrease throttled vcp size */
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pbn_per_slot = get_pbn_per_slot(stream);
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pbn = get_pbn_from_bw_in_kbps(bw_in_kbps);
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avg_time_slots_per_mtp = dc_fixpt_div(pbn, pbn_per_slot);
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stream_encoder->funcs->set_throttled_vcp_size(
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stream_encoder,
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avg_time_slots_per_mtp);
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/* send ALLOCATE_PAYLOAD sideband message with updated pbn */
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dm_helpers_dp_mst_send_payload_allocation(
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stream->ctx,
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stream,
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true);
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/* notify immediate branch device table update */
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if (dm_helpers_dp_mst_write_payload_allocation_table(
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stream->ctx,
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stream,
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&proposed_table,
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true)) {
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/* update mst stream allocation table software state */
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update_mst_stream_alloc_table(
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link,
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pipe_ctx->stream_res.stream_enc,
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pipe_ctx->stream_res.hpo_dp_stream_enc,
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&proposed_table);
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} else {
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DC_LOG_WARNING("Failed to update"
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"MST allocation table for"
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"pipe idx:%d\n",
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pipe_ctx->pipe_idx);
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}
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DC_LOG_MST("%s "
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"stream_count: %d: \n ",
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__func__,
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link->mst_stream_alloc_table.stream_count);
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for (i = 0; i < MAX_CONTROLLER_NUM; i++) {
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DC_LOG_MST("stream_enc[%d]: %p "
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"stream[%d].vcp_id: %d "
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"stream[%d].slot_count: %d\n",
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i,
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(void *) link->mst_stream_alloc_table.stream_allocations[i].stream_enc,
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i,
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link->mst_stream_alloc_table.stream_allocations[i].vcp_id,
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i,
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link->mst_stream_alloc_table.stream_allocations[i].slot_count);
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}
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ASSERT(proposed_table.stream_count > 0);
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/* update mst stream allocation table hardware state */
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link_encoder->funcs->update_mst_stream_allocation_table(
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link_encoder,
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&link->mst_stream_alloc_table);
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/* poll for immediate branch device ACT handled */
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ret = dm_helpers_dp_mst_poll_for_allocation_change_trigger(
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stream->ctx,
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stream);
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return DC_OK;
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}
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enum dc_status dc_link_increase_mst_payload(struct pipe_ctx *pipe_ctx, uint32_t bw_in_kbps)
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{
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struct dc_stream_state *stream = pipe_ctx->stream;
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struct dc_link *link = stream->link;
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struct fixed31_32 avg_time_slots_per_mtp;
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struct fixed31_32 pbn;
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struct fixed31_32 pbn_per_slot;
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struct link_encoder *link_encoder = link->link_enc;
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struct stream_encoder *stream_encoder = pipe_ctx->stream_res.stream_enc;
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struct dp_mst_stream_allocation_table proposed_table = {0};
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uint8_t i;
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enum act_return_status ret;
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DC_LOGGER_INIT(link->ctx->logger);
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/* notify immediate branch device table update */
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if (dm_helpers_dp_mst_write_payload_allocation_table(
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stream->ctx,
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stream,
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&proposed_table,
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true)) {
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/* update mst stream allocation table software state */
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update_mst_stream_alloc_table(
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link,
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pipe_ctx->stream_res.stream_enc,
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pipe_ctx->stream_res.hpo_dp_stream_enc,
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&proposed_table);
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}
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DC_LOG_MST("%s "
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"stream_count: %d: \n ",
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__func__,
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link->mst_stream_alloc_table.stream_count);
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for (i = 0; i < MAX_CONTROLLER_NUM; i++) {
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DC_LOG_MST("stream_enc[%d]: %p "
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"stream[%d].vcp_id: %d "
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"stream[%d].slot_count: %d\n",
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i,
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(void *) link->mst_stream_alloc_table.stream_allocations[i].stream_enc,
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i,
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link->mst_stream_alloc_table.stream_allocations[i].vcp_id,
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i,
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link->mst_stream_alloc_table.stream_allocations[i].slot_count);
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}
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ASSERT(proposed_table.stream_count > 0);
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/* update mst stream allocation table hardware state */
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link_encoder->funcs->update_mst_stream_allocation_table(
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link_encoder,
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&link->mst_stream_alloc_table);
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/* poll for immediate branch device ACT handled */
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ret = dm_helpers_dp_mst_poll_for_allocation_change_trigger(
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stream->ctx,
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stream);
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if (ret != ACT_LINK_LOST) {
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/* send ALLOCATE_PAYLOAD sideband message with updated pbn */
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dm_helpers_dp_mst_send_payload_allocation(
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stream->ctx,
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stream,
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true);
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}
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/* increase throttled vcp size */
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pbn = get_pbn_from_bw_in_kbps(bw_in_kbps);
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pbn_per_slot = get_pbn_per_slot(stream);
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avg_time_slots_per_mtp = dc_fixpt_div(pbn, pbn_per_slot);
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stream_encoder->funcs->set_throttled_vcp_size(
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stream_encoder,
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avg_time_slots_per_mtp);
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return DC_OK;
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}
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#endif
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static enum dc_status deallocate_mst_payload(struct pipe_ctx *pipe_ctx)
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{
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struct dc_stream_state *stream = pipe_ctx->stream;
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struct dc_link *link = stream->link;
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struct link_encoder *link_encoder = NULL;
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struct stream_encoder *stream_encoder = pipe_ctx->stream_res.stream_enc;
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#if defined(CONFIG_DRM_AMD_DC_DCN)
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struct hpo_dp_link_encoder *hpo_dp_link_encoder = link->hpo_dp_link_enc;
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struct hpo_dp_stream_encoder *hpo_dp_stream_encoder = pipe_ctx->stream_res.hpo_dp_stream_enc;
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#endif
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struct dp_mst_stream_allocation_table proposed_table = {0};
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struct fixed31_32 avg_time_slots_per_mtp = dc_fixpt_from_int(0);
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uint8_t i;
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@ -3545,9 +3777,28 @@ static enum dc_status deallocate_mst_payload(struct pipe_ctx *pipe_ctx)
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*/
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/* slot X.Y */
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#if defined(CONFIG_DRM_AMD_DC_DCN)
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switch (dp_get_link_encoding_format(&link->cur_link_settings)) {
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case DP_8b_10b_ENCODING:
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stream_encoder->funcs->set_throttled_vcp_size(
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stream_encoder,
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avg_time_slots_per_mtp);
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break;
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case DP_128b_132b_ENCODING:
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hpo_dp_link_encoder->funcs->set_throttled_vcp_size(
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hpo_dp_link_encoder,
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hpo_dp_stream_encoder->inst,
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avg_time_slots_per_mtp);
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break;
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case DP_UNKNOWN_ENCODING:
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DC_LOG_ERROR("Failure: unknown encoding format\n");
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return DC_ERROR_UNEXPECTED;
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}
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#else
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stream_encoder->funcs->set_throttled_vcp_size(
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stream_encoder,
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avg_time_slots_per_mtp);
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#endif
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/* TODO: which component is responsible for remove payload table? */
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if (mst_mode) {
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@ -3557,8 +3808,16 @@ static enum dc_status deallocate_mst_payload(struct pipe_ctx *pipe_ctx)
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&proposed_table,
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false)) {
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#if defined(CONFIG_DRM_AMD_DC_DCN)
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update_mst_stream_alloc_table(
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link,
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pipe_ctx->stream_res.stream_enc,
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pipe_ctx->stream_res.hpo_dp_stream_enc,
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&proposed_table);
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#else
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update_mst_stream_alloc_table(
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link, pipe_ctx->stream_res.stream_enc, &proposed_table);
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#endif
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}
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else {
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DC_LOG_WARNING("Failed to update"
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@ -3574,6 +3833,20 @@ static enum dc_status deallocate_mst_payload(struct pipe_ctx *pipe_ctx)
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link->mst_stream_alloc_table.stream_count);
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for (i = 0; i < MAX_CONTROLLER_NUM; i++) {
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#if defined(CONFIG_DRM_AMD_DC_DCN)
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DC_LOG_MST("stream_enc[%d]: %p "
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"stream[%d].hpo_dp_stream_enc: %p "
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"stream[%d].vcp_id: %d "
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"stream[%d].slot_count: %d\n",
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i,
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(void *) link->mst_stream_alloc_table.stream_allocations[i].stream_enc,
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i,
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(void *) link->mst_stream_alloc_table.stream_allocations[i].hpo_dp_stream_enc,
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i,
|
||||
link->mst_stream_alloc_table.stream_allocations[i].vcp_id,
|
||||
i,
|
||||
link->mst_stream_alloc_table.stream_allocations[i].slot_count);
|
||||
#else
|
||||
DC_LOG_MST("stream_enc[%d]: %p "
|
||||
"stream[%d].vcp_id: %d "
|
||||
"stream[%d].slot_count: %d\n",
|
||||
|
|
@ -3583,11 +3856,30 @@ static enum dc_status deallocate_mst_payload(struct pipe_ctx *pipe_ctx)
|
|||
link->mst_stream_alloc_table.stream_allocations[i].vcp_id,
|
||||
i,
|
||||
link->mst_stream_alloc_table.stream_allocations[i].slot_count);
|
||||
#endif
|
||||
}
|
||||
|
||||
#if defined(CONFIG_DRM_AMD_DC_DCN)
|
||||
switch (dp_get_link_encoding_format(&link->cur_link_settings)) {
|
||||
case DP_8b_10b_ENCODING:
|
||||
link_encoder->funcs->update_mst_stream_allocation_table(
|
||||
link_encoder,
|
||||
&link->mst_stream_alloc_table);
|
||||
break;
|
||||
case DP_128b_132b_ENCODING:
|
||||
hpo_dp_link_encoder->funcs->update_stream_allocation_table(
|
||||
hpo_dp_link_encoder,
|
||||
&link->mst_stream_alloc_table);
|
||||
break;
|
||||
case DP_UNKNOWN_ENCODING:
|
||||
DC_LOG_ERROR("Failure: unknown encoding format\n");
|
||||
return DC_ERROR_UNEXPECTED;
|
||||
}
|
||||
#else
|
||||
link_encoder->funcs->update_mst_stream_allocation_table(
|
||||
link_encoder,
|
||||
&link->mst_stream_alloc_table);
|
||||
#endif
|
||||
|
||||
if (mst_mode) {
|
||||
dm_helpers_dp_mst_poll_for_allocation_change_trigger(
|
||||
|
|
|
|||
|
|
@ -5993,6 +5993,25 @@ enum dp_link_encoding dp_get_link_encoding_format(const struct dc_link_settings
|
|||
}
|
||||
|
||||
#if defined(CONFIG_DRM_AMD_DC_DCN)
|
||||
enum dp_link_encoding dc_link_dp_mst_decide_link_encoding_format(const struct dc_link *link)
|
||||
{
|
||||
struct dc_link_settings link_settings = {0};
|
||||
|
||||
if (!dc_is_dp_signal(link->connector_signal))
|
||||
return DP_UNKNOWN_ENCODING;
|
||||
|
||||
if (link->preferred_link_setting.lane_count !=
|
||||
LANE_COUNT_UNKNOWN &&
|
||||
link->preferred_link_setting.link_rate !=
|
||||
LINK_RATE_UNKNOWN) {
|
||||
link_settings = link->preferred_link_setting;
|
||||
} else {
|
||||
decide_mst_link_settings(link, &link_settings);
|
||||
}
|
||||
|
||||
return dp_get_link_encoding_format(&link_settings);
|
||||
}
|
||||
|
||||
// TODO - DP2.0 Link: Fix get_lane_status to handle LTTPR offset (SST and MST)
|
||||
static void get_lane_status(
|
||||
struct dc_link *link,
|
||||
|
|
|
|||
|
|
@ -296,6 +296,10 @@ enum dc_detect_reason {
|
|||
bool dc_link_detect(struct dc_link *dc_link, enum dc_detect_reason reason);
|
||||
bool dc_link_get_hpd_state(struct dc_link *dc_link);
|
||||
enum dc_status dc_link_allocate_mst_payload(struct pipe_ctx *pipe_ctx);
|
||||
#if defined(CONFIG_DRM_AMD_DC_DCN)
|
||||
enum dc_status dc_link_reduce_mst_payload(struct pipe_ctx *pipe_ctx, uint32_t req_pbn);
|
||||
enum dc_status dc_link_increase_mst_payload(struct pipe_ctx *pipe_ctx, uint32_t req_pbn);
|
||||
#endif
|
||||
|
||||
/* Notify DC about DP RX Interrupt (aka Short Pulse Interrupt).
|
||||
* Return:
|
||||
|
|
@ -425,4 +429,7 @@ uint32_t dc_bandwidth_in_kbps_from_timing(
|
|||
bool dc_link_is_fec_supported(const struct dc_link *link);
|
||||
bool dc_link_should_enable_fec(const struct dc_link *link);
|
||||
|
||||
#if defined(CONFIG_DRM_AMD_DC_DCN)
|
||||
enum dp_link_encoding dc_link_dp_mst_decide_link_encoding_format(const struct dc_link *link);
|
||||
#endif
|
||||
#endif /* DC_LINK_H_ */
|
||||
|
|
|
|||
|
|
@ -115,6 +115,13 @@ struct periodic_interrupt_config {
|
|||
int lines_offset;
|
||||
};
|
||||
|
||||
#if defined(CONFIG_DRM_AMD_DC_DCN)
|
||||
struct dc_mst_stream_bw_update {
|
||||
bool is_increase; // is bandwidth reduced or increased
|
||||
uint32_t mst_stream_bw; // new mst bandwidth in kbps
|
||||
};
|
||||
#endif
|
||||
|
||||
union stream_update_flags {
|
||||
struct {
|
||||
uint32_t scaling:1;
|
||||
|
|
@ -125,6 +132,9 @@ union stream_update_flags {
|
|||
uint32_t gamut_remap:1;
|
||||
uint32_t wb_update:1;
|
||||
uint32_t dsc_changed : 1;
|
||||
#if defined(CONFIG_DRM_AMD_DC_DCN)
|
||||
uint32_t mst_bw : 1;
|
||||
#endif
|
||||
} bits;
|
||||
|
||||
uint32_t raw;
|
||||
|
|
@ -278,6 +288,9 @@ struct dc_stream_update {
|
|||
|
||||
struct dc_writeback_update *wb_update;
|
||||
struct dc_dsc_config *dsc_config;
|
||||
#if defined(CONFIG_DRM_AMD_DC_DCN)
|
||||
struct dc_mst_stream_bw_update *mst_bw_update;
|
||||
#endif
|
||||
struct dc_transfer_func *func_shaper;
|
||||
struct dc_3dlut *lut3d_func;
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user