diff options
author | Wayne Lin <wayne.lin@amd.com> | 2023-08-07 15:34:39 +0800 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2023-11-29 16:49:00 -0500 |
commit | 83a79dd6f4fb54c8cfe3ecbd378817047687a9b2 (patch) | |
tree | c1a2fe7d5ce78ecdf805ccd1c8e35a200eea4f52 /drivers/gpu/drm/amd/display/dc/link | |
parent | 43b8ac4b34ec239bccf4a692c1227ef51a95a4d2 (diff) | |
download | linux-stable-83a79dd6f4fb54c8cfe3ecbd378817047687a9b2.tar.gz linux-stable-83a79dd6f4fb54c8cfe3ecbd378817047687a9b2.tar.bz2 linux-stable-83a79dd6f4fb54c8cfe3ecbd378817047687a9b2.zip |
drm/amd/display: adjust flow for deallocation mst payload
[Why]
MST relevant variables are maintained at drm side. As the result, we
still have to call drm_dp_remove_payload_part2() to update the relevant
values regardless the link is under mst mode or not. We used to have a
workaround patch to tackle this: commit 3d8fcc6740c9 ("drm/amd/display:
Extract temp drm mst deallocation wa into its own function")
Now it's time to remove the workaround and adjust the flow.
[How]
During deallocate_mst_payload(), source actually doesn't send out
ALLOCATE_PAYLOAD at the end as like the flow in allocate_mst_payload().
Call function dm_helpers_dp_mst_send_payload_allocation() at the end of
deallocate_mst_payload() is a bit confusing.
Separate dm_helpers_dp_mst_send_payload_allocation() into 2 functions.
Have a new function dm_helpers_dp_mst_update_mst_mgr_for_deallocation()
to replace dm_helpers_dp_mst_send_payload_allocation() for payload
deallocation.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/link')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/link/link_dpms.c | 105 |
1 files changed, 8 insertions, 97 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/link/link_dpms.c b/drivers/gpu/drm/amd/display/dc/link/link_dpms.c index f8e01ca09d96..aa0a086aa7fc 100644 --- a/drivers/gpu/drm/amd/display/dc/link/link_dpms.c +++ b/drivers/gpu/drm/amd/display/dc/link/link_dpms.c @@ -1247,86 +1247,6 @@ static void remove_stream_from_alloc_table( } } -static enum dc_status deallocate_mst_payload_with_temp_drm_wa( - struct pipe_ctx *pipe_ctx) -{ - struct dc_stream_state *stream = pipe_ctx->stream; - struct dc_link *link = stream->link; - struct dc_dp_mst_stream_allocation_table proposed_table = {0}; - struct fixed31_32 avg_time_slots_per_mtp = dc_fixpt_from_int(0); - int i; - bool mst_mode = (link->type == dc_connection_mst_branch); - /* adjust for drm changes*/ - const struct link_hwss *link_hwss = get_link_hwss(link, &pipe_ctx->link_res); - const struct dc_link_settings empty_link_settings = {0}; - DC_LOGGER_INIT(link->ctx->logger); - - if (link_hwss->ext.set_throttled_vcp_size) - link_hwss->ext.set_throttled_vcp_size(pipe_ctx, avg_time_slots_per_mtp); - if (link_hwss->ext.set_hblank_min_symbol_width) - link_hwss->ext.set_hblank_min_symbol_width(pipe_ctx, - &empty_link_settings, - avg_time_slots_per_mtp); - - if (dm_helpers_dp_mst_write_payload_allocation_table( - stream->ctx, - stream, - &proposed_table, - false)) - update_mst_stream_alloc_table( - link, - pipe_ctx->stream_res.stream_enc, - pipe_ctx->stream_res.hpo_dp_stream_enc, - &proposed_table); - else - DC_LOG_WARNING("Failed to update" - "MST allocation table for" - "pipe idx:%d\n", - pipe_ctx->pipe_idx); - - DC_LOG_MST("%s" - "stream_count: %d: ", - __func__, - link->mst_stream_alloc_table.stream_count); - - for (i = 0; i < MAX_CONTROLLER_NUM; i++) { - DC_LOG_MST("stream_enc[%d]: %p " - "stream[%d].hpo_dp_stream_enc: %p " - "stream[%d].vcp_id: %d " - "stream[%d].slot_count: %d\n", - i, - (void *) link->mst_stream_alloc_table.stream_allocations[i].stream_enc, - i, - (void *) link->mst_stream_alloc_table.stream_allocations[i].hpo_dp_stream_enc, - i, - link->mst_stream_alloc_table.stream_allocations[i].vcp_id, - i, - link->mst_stream_alloc_table.stream_allocations[i].slot_count); - } - - if (link_hwss->ext.update_stream_allocation_table == NULL || - link_dp_get_encoding_format(&link->cur_link_settings) == DP_UNKNOWN_ENCODING) { - DC_LOG_DEBUG("Unknown encoding format\n"); - return DC_ERROR_UNEXPECTED; - } - - link_hwss->ext.update_stream_allocation_table(link, &pipe_ctx->link_res, - &link->mst_stream_alloc_table); - - if (mst_mode) { - dm_helpers_dp_mst_poll_for_allocation_change_trigger( - stream->ctx, - stream); - } - - dm_helpers_dp_mst_send_payload_allocation( - stream->ctx, - stream, - false); - - return DC_OK; -} - static enum dc_status deallocate_mst_payload(struct pipe_ctx *pipe_ctx) { struct dc_stream_state *stream = pipe_ctx->stream; @@ -1339,9 +1259,6 @@ static enum dc_status deallocate_mst_payload(struct pipe_ctx *pipe_ctx) const struct dc_link_settings empty_link_settings = {0}; DC_LOGGER_INIT(link->ctx->logger); - if (link->dc->debug.temp_mst_deallocation_sequence) - return deallocate_mst_payload_with_temp_drm_wa(pipe_ctx); - /* deallocate_mst_payload is called before disable link. When mode or * disable/enable monitor, new stream is created which is not in link * stream[] yet. For this, payload is not allocated yet, so de-alloc @@ -1414,16 +1331,14 @@ static enum dc_status deallocate_mst_payload(struct pipe_ctx *pipe_ctx) link_hwss->ext.update_stream_allocation_table(link, &pipe_ctx->link_res, &link->mst_stream_alloc_table); - if (mst_mode) { + if (mst_mode) dm_helpers_dp_mst_poll_for_allocation_change_trigger( stream->ctx, stream); - dm_helpers_dp_mst_send_payload_allocation( - stream->ctx, - stream, - false); - } + dm_helpers_dp_mst_update_mst_mgr_for_deallocation( + stream->ctx, + stream); return DC_OK; } @@ -1504,12 +1419,10 @@ static enum dc_status allocate_mst_payload(struct pipe_ctx *pipe_ctx) stream->ctx, stream); - if (ret != ACT_LINK_LOST) { + if (ret != ACT_LINK_LOST) dm_helpers_dp_mst_send_payload_allocation( stream->ctx, - stream, - true); - } + stream); /* slot X.Y for only current stream */ pbn_per_slot = get_pbn_per_slot(stream); @@ -1769,8 +1682,7 @@ enum dc_status link_reduce_mst_payload(struct pipe_ctx *pipe_ctx, uint32_t bw_in /* send ALLOCATE_PAYLOAD sideband message with updated pbn */ dm_helpers_dp_mst_send_payload_allocation( stream->ctx, - stream, - true); + stream); /* notify immediate branch device table update */ if (dm_helpers_dp_mst_write_payload_allocation_table( @@ -1899,8 +1811,7 @@ enum dc_status link_increase_mst_payload(struct pipe_ctx *pipe_ctx, uint32_t bw_ /* send ALLOCATE_PAYLOAD sideband message with updated pbn */ dm_helpers_dp_mst_send_payload_allocation( stream->ctx, - stream, - true); + stream); } /* increase throttled vcp size */ |