diff options
Diffstat (limited to '')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c b/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c new file mode 100644 index 000000000000..225955ec6d39 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c @@ -0,0 +1,220 @@ +/* + * Copyright 2019 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: AMD + * + */ + +#include "dmub_psr.h" +#include "dc.h" +#include "dc_dmub_srv.h" +#include "../../dmub/inc/dmub_srv.h" +#include "dmub_fw_state.h" +#include "core_types.h" +#include "ipp.h" + +#define MAX_PIPES 6 + +/** + * Get PSR state from firmware. + */ +static void dmub_get_psr_state(uint32_t *psr_state) +{ + // Not yet implemented + // Trigger GPINT interrupt from firmware +} + +/** + * Enable/Disable PSR. + */ +static void dmub_set_psr_enable(struct dmub_psr *dmub, bool enable) +{ + union dmub_rb_cmd cmd; + struct dc_context *dc = dmub->ctx; + + cmd.psr_enable.header.type = DMUB_CMD__PSR; + + if (enable) + cmd.psr_enable.header.sub_type = DMUB_CMD__PSR_ENABLE; + else + cmd.psr_enable.header.sub_type = DMUB_CMD__PSR_DISABLE; + + cmd.psr_enable.header.payload_bytes = 0; // Send header only + + dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd.psr_enable.header); + dc_dmub_srv_cmd_execute(dc->dmub_srv); + dc_dmub_srv_wait_idle(dc->dmub_srv); +} + +/** + * Set PSR level. + */ +static void dmub_set_psr_level(struct dmub_psr *dmub, uint16_t psr_level) +{ + union dmub_rb_cmd cmd; + uint32_t psr_state = 0; + struct dc_context *dc = dmub->ctx; + + dmub_get_psr_state(&psr_state); + + if (psr_state == 0) + return; + + cmd.psr_set_level.header.type = DMUB_CMD__PSR; + cmd.psr_set_level.header.sub_type = DMUB_CMD__PSR_SET_LEVEL; + cmd.psr_set_level.header.payload_bytes = sizeof(struct dmub_cmd_psr_set_level_data); + cmd.psr_set_level.psr_set_level_data.psr_level = psr_level; + + dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd.psr_set_level.header); + dc_dmub_srv_cmd_execute(dc->dmub_srv); + dc_dmub_srv_wait_idle(dc->dmub_srv); +} + +/** + * Setup PSR by programming phy registers and sending psr hw context values to firmware. + */ +static bool dmub_setup_psr(struct dmub_psr *dmub, + struct dc_link *link, + struct psr_context *psr_context) +{ + union dmub_rb_cmd cmd; + struct dc_context *dc = dmub->ctx; + struct dmub_cmd_psr_copy_settings_data *copy_settings_data + = &cmd.psr_copy_settings.psr_copy_settings_data; + struct pipe_ctx *pipe_ctx = NULL; + struct resource_context *res_ctx = &link->ctx->dc->current_state->res_ctx; + + for (int i = 0; i < MAX_PIPES; i++) { + if (res_ctx && + res_ctx->pipe_ctx[i].stream && + res_ctx->pipe_ctx[i].stream->link && + res_ctx->pipe_ctx[i].stream->link == link && + res_ctx->pipe_ctx[i].stream->link->connector_signal == SIGNAL_TYPE_EDP) { + pipe_ctx = &res_ctx->pipe_ctx[i]; + break; + } + } + + if (!pipe_ctx || + !&pipe_ctx->plane_res || + !&pipe_ctx->stream_res) + return false; + + // Program DP DPHY fast training registers + link->link_enc->funcs->psr_program_dp_dphy_fast_training(link->link_enc, + psr_context->psrExitLinkTrainingRequired); + + // Program DP_SEC_CNTL1 register to set transmission GPS0 line num and priority to high + link->link_enc->funcs->psr_program_secondary_packet(link->link_enc, + psr_context->sdpTransmitLineNumDeadline); + + cmd.psr_copy_settings.header.type = DMUB_CMD__PSR; + cmd.psr_copy_settings.header.sub_type = DMUB_CMD__PSR_COPY_SETTINGS; + cmd.psr_copy_settings.header.payload_bytes = sizeof(struct dmub_cmd_psr_copy_settings_data); + + // Hw insts + copy_settings_data->dpphy_inst = psr_context->phyType; + copy_settings_data->aux_inst = psr_context->channel; + copy_settings_data->digfe_inst = psr_context->engineId; + copy_settings_data->digbe_inst = psr_context->transmitterId; + + copy_settings_data->mpcc_inst = pipe_ctx->plane_res.mpcc_inst; + + if (pipe_ctx->plane_res.hubp) + copy_settings_data->hubp_inst = pipe_ctx->plane_res.hubp->inst; + else + copy_settings_data->hubp_inst = 0; + if (pipe_ctx->plane_res.dpp) + copy_settings_data->dpp_inst = pipe_ctx->plane_res.dpp->inst; + else + copy_settings_data->dpp_inst = 0; + if (pipe_ctx->stream_res.opp) + copy_settings_data->opp_inst = pipe_ctx->stream_res.opp->inst; + else + copy_settings_data->opp_inst = 0; + if (pipe_ctx->stream_res.tg) + copy_settings_data->otg_inst = pipe_ctx->stream_res.tg->inst; + else + copy_settings_data->otg_inst = 0; + + // Misc + copy_settings_data->psr_level = psr_context->psr_level.u32all; + copy_settings_data->hyst_frames = psr_context->timehyst_frames; + copy_settings_data->hyst_lines = psr_context->hyst_lines; + copy_settings_data->phy_type = psr_context->phyType; + copy_settings_data->aux_repeat = psr_context->aux_repeats; + copy_settings_data->smu_optimizations_en = psr_context->allow_smu_optimizations; + copy_settings_data->skip_wait_for_pll_lock = psr_context->skipPsrWaitForPllLock; + copy_settings_data->frame_delay = psr_context->frame_delay; + copy_settings_data->smu_phy_id = psr_context->smuPhyId; + copy_settings_data->num_of_controllers = psr_context->numberOfControllers; + copy_settings_data->frame_cap_ind = psr_context->psrFrameCaptureIndicationReq; + copy_settings_data->phy_num = psr_context->frame_delay & 0x7; + copy_settings_data->link_rate = psr_context->frame_delay & 0xF; + + dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd.psr_copy_settings.header); + dc_dmub_srv_cmd_execute(dc->dmub_srv); + dc_dmub_srv_wait_idle(dc->dmub_srv); + + return true; +} + +static const struct dmub_psr_funcs psr_funcs = { + .set_psr_enable = dmub_set_psr_enable, + .setup_psr = dmub_setup_psr, + .get_psr_state = dmub_get_psr_state, + .set_psr_level = dmub_set_psr_level, +}; + +/** + * Construct PSR object. + */ +static void dmub_psr_construct(struct dmub_psr *psr, struct dc_context *ctx) +{ + psr->ctx = ctx; + psr->funcs = &psr_funcs; +} + +/** + * Allocate and initialize PSR object. + */ +struct dmub_psr *dmub_psr_create(struct dc_context *ctx) +{ + struct dmub_psr *psr = kzalloc(sizeof(struct dmub_psr), GFP_KERNEL); + + if (psr == NULL) { + BREAK_TO_DEBUGGER(); + return NULL; + } + + dmub_psr_construct(psr, ctx); + + return psr; +} + +/** + * Deallocate PSR object. + */ +void dmub_psr_destroy(struct dmub_psr **dmub) +{ + kfree(dmub); + *dmub = NULL; +} |