diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc.c | 381 |
1 files changed, 369 insertions, 12 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index c798c65d4276..12e5470fa567 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -229,6 +229,25 @@ static bool create_links( DC_LOG_DC("BIOS object table - end"); + /* Create a link for each usb4 dpia port */ + for (i = 0; i < dc->res_pool->usb4_dpia_count; i++) { + struct link_init_data link_init_params = {0}; + struct dc_link *link; + + link_init_params.ctx = dc->ctx; + link_init_params.connector_index = i; + link_init_params.link_index = dc->link_count; + link_init_params.dc = dc; + link_init_params.is_dpia_link = true; + + link = link_create(&link_init_params); + if (link) { + dc->links[dc->link_count] = link; + link->dc = dc; + ++dc->link_count; + } + } + for (i = 0; i < num_virtual_links; i++) { struct dc_link *link = kzalloc(sizeof(*link), GFP_KERNEL); struct encoder_init_data enc_init = {0}; @@ -255,6 +274,24 @@ static bool create_links( goto failed_alloc; } +#if defined(CONFIG_DRM_AMD_DC_DCN) + if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) && + dc->caps.dp_hpo && + link->dc->res_pool->res_cap->num_hpo_dp_link_encoder > 0) { + /* FPGA case - Allocate HPO DP link encoder */ + if (i < link->dc->res_pool->res_cap->num_hpo_dp_link_encoder) { + link->hpo_dp_link_enc = link->dc->res_pool->hpo_dp_link_enc[i]; + + if (link->hpo_dp_link_enc == NULL) { + BREAK_TO_DEBUGGER(); + goto failed_alloc; + } + link->hpo_dp_link_enc->hpd_source = link->link_enc->hpd_source; + link->hpo_dp_link_enc->transmitter = link->link_enc->transmitter; + } + } +#endif + link->link_status.dpcd_caps = &link->dpcd_caps; enc_init.ctx = dc->ctx; @@ -276,6 +313,75 @@ failed_alloc: return false; } +/* Create additional DIG link encoder objects if fewer than the platform + * supports were created during link construction. This can happen if the + * number of physical connectors is less than the number of DIGs. + */ +static bool create_link_encoders(struct dc *dc) +{ + bool res = true; + unsigned int num_usb4_dpia = dc->res_pool->res_cap->num_usb4_dpia; + unsigned int num_dig_link_enc = dc->res_pool->res_cap->num_dig_link_enc; + int i; + + /* A platform without USB4 DPIA endpoints has a fixed mapping between DIG + * link encoders and physical display endpoints and does not require + * additional link encoder objects. + */ + if (num_usb4_dpia == 0) + return res; + + /* Create as many link encoder objects as the platform supports. DPIA + * endpoints can be programmably mapped to any DIG. + */ + if (num_dig_link_enc > dc->res_pool->dig_link_enc_count) { + for (i = 0; i < num_dig_link_enc; i++) { + struct link_encoder *link_enc = dc->res_pool->link_encoders[i]; + + if (!link_enc && dc->res_pool->funcs->link_enc_create_minimal) { + link_enc = dc->res_pool->funcs->link_enc_create_minimal(dc->ctx, + (enum engine_id)(ENGINE_ID_DIGA + i)); + if (link_enc) { + dc->res_pool->link_encoders[i] = link_enc; + dc->res_pool->dig_link_enc_count++; + } else { + res = false; + } + } + } + } + + return res; +} + +/* Destroy any additional DIG link encoder objects created by + * create_link_encoders(). + * NB: Must only be called after destroy_links(). + */ +static void destroy_link_encoders(struct dc *dc) +{ + unsigned int num_usb4_dpia = dc->res_pool->res_cap->num_usb4_dpia; + unsigned int num_dig_link_enc = dc->res_pool->res_cap->num_dig_link_enc; + int i; + + /* A platform without USB4 DPIA endpoints has a fixed mapping between DIG + * link encoders and physical display endpoints and does not require + * additional link encoder objects. + */ + if (num_usb4_dpia == 0) + return; + + for (i = 0; i < num_dig_link_enc; i++) { + struct link_encoder *link_enc = dc->res_pool->link_encoders[i]; + + if (link_enc) { + link_enc->funcs->destroy(&link_enc); + dc->res_pool->link_encoders[i] = NULL; + dc->res_pool->dig_link_enc_count--; + } + } +} + static struct dc_perf_trace *dc_perf_trace_create(void) { return kzalloc(sizeof(struct dc_perf_trace), GFP_KERNEL); @@ -709,6 +815,8 @@ static void dc_destruct(struct dc *dc) destroy_links(dc); + destroy_link_encoders(dc); + if (dc->clk_mgr) { dc_destroy_clk_mgr(dc->clk_mgr); dc->clk_mgr = NULL; @@ -913,6 +1021,12 @@ static bool dc_construct(struct dc *dc, if (!create_links(dc, init_params->num_virtual_links)) goto fail; + /* Create additional DIG link encoder objects if fewer than the platform + * supports were created during link construction. + */ + if (!create_link_encoders(dc)) + goto fail; + /* Initialise DIG link encoder resource tracking variables. */ link_enc_cfg_init(dc, dc->current_state); @@ -1544,7 +1658,7 @@ static uint8_t get_stream_mask(struct dc *dc, struct dc_state *context) } #if defined(CONFIG_DRM_AMD_DC_DCN) -void dc_z10_restore(struct dc *dc) +void dc_z10_restore(const struct dc *dc) { if (dc->hwss.z10_restore) dc->hwss.z10_restore(dc); @@ -1773,6 +1887,27 @@ static bool is_flip_pending_in_pipes(struct dc *dc, struct dc_state *context) return false; } +/* Perform updates here which need to be deferred until next vupdate + * + * i.e. blnd lut, 3dlut, and shaper lut bypass regs are double buffered + * but forcing lut memory to shutdown state is immediate. This causes + * single frame corruption as lut gets disabled mid-frame unless shutdown + * is deferred until after entering bypass. + */ +static void process_deferred_updates(struct dc *dc) +{ +#ifdef CONFIG_DRM_AMD_DC_DCN + int i = 0; + + if (dc->debug.enable_mem_low_power.bits.cm) { + ASSERT(dc->dcn_ip->max_num_dpp); + for (i = 0; i < dc->dcn_ip->max_num_dpp; i++) + if (dc->res_pool->dpps[i]->funcs->dpp_deferred_update) + dc->res_pool->dpps[i]->funcs->dpp_deferred_update(dc->res_pool->dpps[i]); + } +#endif +} + void dc_post_update_surfaces_to_stream(struct dc *dc) { int i; @@ -1783,6 +1918,11 @@ void dc_post_update_surfaces_to_stream(struct dc *dc) post_surface_trace(dc); + if (dc->ctx->dce_version >= DCE_VERSION_MAX) + TRACE_DCN_CLOCK_STATE(&context->bw_ctx.bw.dcn.clk); + else + TRACE_DCE_CLOCK_STATE(&context->bw_ctx.bw.dce); + if (is_flip_pending_in_pipes(dc, context)) return; @@ -1793,6 +1933,8 @@ void dc_post_update_surfaces_to_stream(struct dc *dc) dc->hwss.disable_plane(dc, &context->res_ctx.pipe_ctx[i]); } + process_deferred_updates(dc); + dc->hwss.optimize_bandwidth(dc, context); dc->optimized_required = false; @@ -1990,7 +2132,7 @@ static enum surface_update_type get_plane_info_update_type(const struct dc_surfa } if (u->plane_info->dcc.enable != u->surface->dcc.enable - || u->plane_info->dcc.independent_64b_blks != u->surface->dcc.independent_64b_blks + || u->plane_info->dcc.dcc_ind_blk != u->surface->dcc.dcc_ind_blk || u->plane_info->dcc.meta_pitch != u->surface->dcc.meta_pitch) { /* During DCC on/off, stutter period is calculated before * DCC has fully transitioned. This results in incorrect @@ -2143,6 +2285,9 @@ static enum surface_update_type det_surface_update(const struct dc *dc, update_flags->bits.gamma_change = 1; } + if (u->lut3d_func || u->func_shaper) + update_flags->bits.lut_3d = 1; + if (u->hdr_mult.value) if (u->hdr_mult.value != u->surface->hdr_mult.value) { update_flags->bits.hdr_mult = 1; @@ -2156,6 +2301,7 @@ static enum surface_update_type det_surface_update(const struct dc *dc, if (update_flags->bits.input_csc_change || update_flags->bits.coeff_reduction_change + || update_flags->bits.lut_3d || update_flags->bits.gamma_change || update_flags->bits.gamut_remap_change) { type = UPDATE_TYPE_FULL; @@ -2214,6 +2360,11 @@ static enum surface_update_type check_update_surfaces_for_stream( if (stream_update->dsc_config) su_flags->bits.dsc_changed = 1; +#if defined(CONFIG_DRM_AMD_DC_DCN) + if (stream_update->mst_bw_update) + su_flags->bits.mst_bw = 1; +#endif + if (su_flags->raw != 0) overall_type = UPDATE_TYPE_FULL; @@ -2591,6 +2742,15 @@ static void commit_planes_do_stream_update(struct dc *dc, if (stream_update->dsc_config) dp_update_dsc_config(pipe_ctx); +#if defined(CONFIG_DRM_AMD_DC_DCN) + if (stream_update->mst_bw_update) { + if (stream_update->mst_bw_update->is_increase) + dc_link_increase_mst_payload(pipe_ctx, stream_update->mst_bw_update->mst_stream_bw); + else + dc_link_reduce_mst_payload(pipe_ctx, stream_update->mst_bw_update->mst_stream_bw); + } +#endif + if (stream_update->pending_test_pattern) { dc_link_dp_set_test_pattern(stream->link, stream->test_pattern.type, @@ -2968,6 +3128,14 @@ void dc_commit_updates_for_stream(struct dc *dc, if (new_pipe->plane_state && new_pipe->plane_state != old_pipe->plane_state) new_pipe->plane_state->force_full_update = true; } + } else if (update_type == UPDATE_TYPE_FAST && dc_ctx->dce_version >= DCE_VERSION_MAX) { + /* + * Previous frame finished and HW is ready for optimization. + * + * Only relevant for DCN behavior where we can guarantee the optimization + * is safe to apply - retain the legacy behavior for DCE. + */ + dc_post_update_surfaces_to_stream(dc); } @@ -3024,14 +3192,11 @@ void dc_commit_updates_for_stream(struct dc *dc, pipe_ctx->plane_state->force_full_update = false; } } - /*let's use current_state to update watermark etc*/ - if (update_type >= UPDATE_TYPE_FULL) { - dc_post_update_surfaces_to_stream(dc); - if (dc_ctx->dce_version >= DCE_VERSION_MAX) - TRACE_DCN_CLOCK_STATE(&context->bw_ctx.bw.dcn.clk); - else - TRACE_DCE_CLOCK_STATE(&context->bw_ctx.bw.dce); + /* Legacy optimization path for DCE. */ + if (update_type >= UPDATE_TYPE_FULL && dc_ctx->dce_version < DCE_VERSION_MAX) { + dc_post_update_surfaces_to_stream(dc); + TRACE_DCE_CLOCK_STATE(&context->bw_ctx.bw.dce); } return; @@ -3334,6 +3499,7 @@ void dc_get_clock(struct dc *dc, enum dc_clock_type clock_type, struct dc_clock_ bool dc_set_psr_allow_active(struct dc *dc, bool enable) { int i; + bool allow_active; for (i = 0; i < dc->current_state->stream_count ; i++) { struct dc_link *link; @@ -3345,10 +3511,12 @@ bool dc_set_psr_allow_active(struct dc *dc, bool enable) if (link->psr_settings.psr_feature_enabled) { if (enable && !link->psr_settings.psr_allow_active) { - if (!dc_link_set_psr_allow_active(link, true, false, false)) + allow_active = true; + if (!dc_link_set_psr_allow_active(link, &allow_active, false, false, NULL)) return false; } else if (!enable && link->psr_settings.psr_allow_active) { - if (!dc_link_set_psr_allow_active(link, false, true, false)) + allow_active = false; + if (!dc_link_set_psr_allow_active(link, &allow_active, true, false, NULL)) return false; } } @@ -3432,6 +3600,12 @@ void dc_hardware_release(struct dc *dc) */ bool dc_enable_dmub_notifications(struct dc *dc) { +#if defined(CONFIG_DRM_AMD_DC_DCN) + /* YELLOW_CARP B0 USB4 DPIA needs dmub notifications for interrupts */ + if (dc->ctx->asic_id.chip_family == FAMILY_YELLOW_CARP && + dc->ctx->asic_id.hw_internal_rev == YELLOW_CARP_B0) + return true; +#endif /* dmub aux needs dmub notifications to be enabled */ return dc->debug.enable_dmub_aux_for_legacy_ddc; } @@ -3457,7 +3631,12 @@ bool dc_process_dmub_aux_transfer_async(struct dc *dc, cmd.dp_aux_access.header.type = DMUB_CMD__DP_AUX_ACCESS; cmd.dp_aux_access.header.payload_bytes = 0; - cmd.dp_aux_access.aux_control.type = AUX_CHANNEL_LEGACY_DDC; + /* For dpia, ddc_pin is set to NULL */ + if (!dc->links[link_index]->ddc->ddc_pin) + cmd.dp_aux_access.aux_control.type = AUX_CHANNEL_DPIA; + else + cmd.dp_aux_access.aux_control.type = AUX_CHANNEL_LEGACY_DDC; + cmd.dp_aux_access.aux_control.instance = dc->links[link_index]->ddc_hw_inst; cmd.dp_aux_access.aux_control.sw_crc_enabled = 0; cmd.dp_aux_access.aux_control.timeout = 0; @@ -3501,6 +3680,130 @@ bool dc_process_dmub_aux_transfer_async(struct dc *dc, return true; } +uint8_t get_link_index_from_dpia_port_index(const struct dc *dc, + uint8_t dpia_port_index) +{ + uint8_t index, link_index = 0xFF; + + for (index = 0; index < dc->link_count; index++) { + /* ddc_hw_inst has dpia port index for dpia links + * and ddc instance for legacy links + */ + if (!dc->links[index]->ddc->ddc_pin) { + if (dc->links[index]->ddc_hw_inst == dpia_port_index) { + link_index = index; + break; + } + } + } + ASSERT(link_index != 0xFF); + return link_index; +} + +/** + ***************************************************************************** + * Function: dc_process_dmub_set_config_async + * + * @brief + * Submits set_config command to dmub via inbox message + * + * @param + * [in] dc: dc structure + * [in] link_index: link index + * [in] payload: aux payload + * [out] notify: set_config immediate reply + * + * @return + * True if successful, False if failure + ***************************************************************************** + */ +bool dc_process_dmub_set_config_async(struct dc *dc, + uint32_t link_index, + struct set_config_cmd_payload *payload, + struct dmub_notification *notify) +{ + union dmub_rb_cmd cmd = {0}; + struct dc_dmub_srv *dmub_srv = dc->ctx->dmub_srv; + bool is_cmd_complete = true; + + /* prepare SET_CONFIG command */ + cmd.set_config_access.header.type = DMUB_CMD__DPIA; + cmd.set_config_access.header.sub_type = DMUB_CMD__DPIA_SET_CONFIG_ACCESS; + + cmd.set_config_access.set_config_control.instance = dc->links[link_index]->ddc_hw_inst; + cmd.set_config_access.set_config_control.cmd_pkt.msg_type = payload->msg_type; + cmd.set_config_access.set_config_control.cmd_pkt.msg_data = payload->msg_data; + + if (!dc_dmub_srv_cmd_with_reply_data(dmub_srv, &cmd)) { + /* command is not processed by dmub */ + notify->sc_status = SET_CONFIG_UNKNOWN_ERROR; + return is_cmd_complete; + } + + /* command processed by dmub, if ret_status is 1, it is completed instantly */ + if (cmd.set_config_access.header.ret_status == 1) + notify->sc_status = cmd.set_config_access.set_config_control.immed_status; + else + /* cmd pending, will receive notification via outbox */ + is_cmd_complete = false; + + return is_cmd_complete; +} + +/** + ***************************************************************************** + * Function: dc_process_dmub_set_mst_slots + * + * @brief + * Submits mst slot allocation command to dmub via inbox message + * + * @param + * [in] dc: dc structure + * [in] link_index: link index + * [in] mst_alloc_slots: mst slots to be allotted + * [out] mst_slots_in_use: mst slots in use returned in failure case + * + * @return + * DC_OK if successful, DC_ERROR if failure + ***************************************************************************** + */ +enum dc_status dc_process_dmub_set_mst_slots(const struct dc *dc, + uint32_t link_index, + uint8_t mst_alloc_slots, + uint8_t *mst_slots_in_use) +{ + union dmub_rb_cmd cmd = {0}; + struct dc_dmub_srv *dmub_srv = dc->ctx->dmub_srv; + + /* prepare MST_ALLOC_SLOTS command */ + cmd.set_mst_alloc_slots.header.type = DMUB_CMD__DPIA; + cmd.set_mst_alloc_slots.header.sub_type = DMUB_CMD__DPIA_MST_ALLOC_SLOTS; + + cmd.set_mst_alloc_slots.mst_slots_control.instance = dc->links[link_index]->ddc_hw_inst; + cmd.set_mst_alloc_slots.mst_slots_control.mst_alloc_slots = mst_alloc_slots; + + if (!dc_dmub_srv_cmd_with_reply_data(dmub_srv, &cmd)) + /* command is not processed by dmub */ + return DC_ERROR_UNEXPECTED; + + /* command processed by dmub, if ret_status is 1 */ + if (cmd.set_config_access.header.ret_status != 1) + /* command processing error */ + return DC_ERROR_UNEXPECTED; + + /* command processed and we have a status of 2, mst not enabled in dpia */ + if (cmd.set_mst_alloc_slots.mst_slots_control.immed_status == 2) + return DC_FAIL_UNSUPPORTED_1; + + /* previously configured mst alloc and used slots did not match */ + if (cmd.set_mst_alloc_slots.mst_slots_control.immed_status == 3) { + *mst_slots_in_use = cmd.set_mst_alloc_slots.mst_slots_control.mst_slots_in_use; + return DC_NOT_SUPPORTED; + } + + return DC_OK; +} + /** * dc_disable_accelerated_mode - disable accelerated mode * @dc: dc structure @@ -3509,3 +3812,57 @@ void dc_disable_accelerated_mode(struct dc *dc) { bios_set_scratch_acc_mode_change(dc->ctx->dc_bios, 0); } + + +/** + ***************************************************************************** + * dc_notify_vsync_int_state() - notifies vsync enable/disable state + * @dc: dc structure + * @stream: stream where vsync int state changed + * @enable: whether vsync is enabled or disabled + * + * Called when vsync is enabled/disabled + * Will notify DMUB to start/stop ABM interrupts after steady state is reached + * + ***************************************************************************** + */ +void dc_notify_vsync_int_state(struct dc *dc, struct dc_stream_state *stream, bool enable) +{ + int i; + int edp_num; + struct pipe_ctx *pipe = NULL; + struct dc_link *link = stream->sink->link; + struct dc_link *edp_links[MAX_NUM_EDP]; + + + if (link->psr_settings.psr_feature_enabled) + return; + + /*find primary pipe associated with stream*/ + for (i = 0; i < MAX_PIPES; i++) { + pipe = &dc->current_state->res_ctx.pipe_ctx[i]; + + if (pipe->stream == stream && pipe->stream_res.tg) + break; + } + + if (i == MAX_PIPES) { + ASSERT(0); + return; + } + + get_edp_links(dc, edp_links, &edp_num); + + /* Determine panel inst */ + for (i = 0; i < edp_num; i++) { + if (edp_links[i] == link) + break; + } + + if (i == edp_num) { + return; + } + + if (pipe->stream_res.abm && pipe->stream_res.abm->funcs->set_abm_pause) + pipe->stream_res.abm->funcs->set_abm_pause(pipe->stream_res.abm, !enable, i, pipe->stream_res.tg->inst); +} |