diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_hpo_fixed_vs_pe_retimer_dp.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_hpo_fixed_vs_pe_retimer_dp.c | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_hpo_fixed_vs_pe_retimer_dp.c b/drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_hpo_fixed_vs_pe_retimer_dp.c new file mode 100644 index 000000000000..b621b97711b6 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_hpo_fixed_vs_pe_retimer_dp.c @@ -0,0 +1,229 @@ +/* + * Copyright 2023 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 "link_hwss_hpo_dp.h" +#include "link_hwss_hpo_fixed_vs_pe_retimer_dp.h" +#include "link_hwss_dio_fixed_vs_pe_retimer.h" + +static void dp_hpo_fixed_vs_pe_retimer_set_tx_ffe(struct dc_link *link, + const struct dc_lane_settings *hw_lane_settings) +{ + const uint8_t vendor_ffe_preset_table[16] = { + 0x01, 0x41, 0x61, 0x81, + 0xB1, 0x05, 0x35, 0x65, + 0x85, 0xA5, 0x09, 0x39, + 0x59, 0x89, 0x0F, 0x24}; + + const uint8_t ffe_mask[4] = { + (hw_lane_settings[0].FFE_PRESET.settings.no_deemphasis != 0 ? 0x0F : 0xFF) + & (hw_lane_settings[0].FFE_PRESET.settings.no_preshoot != 0 ? 0xF1 : 0xFF), + (hw_lane_settings[1].FFE_PRESET.settings.no_deemphasis != 0 ? 0x0F : 0xFF) + & (hw_lane_settings[1].FFE_PRESET.settings.no_preshoot != 0 ? 0xF1 : 0xFF), + (hw_lane_settings[2].FFE_PRESET.settings.no_deemphasis != 0 ? 0x0F : 0xFF) + & (hw_lane_settings[2].FFE_PRESET.settings.no_preshoot != 0 ? 0xF1 : 0xFF), + (hw_lane_settings[3].FFE_PRESET.settings.no_deemphasis != 0 ? 0x0F : 0xFF) + & (hw_lane_settings[3].FFE_PRESET.settings.no_preshoot != 0 ? 0xF1 : 0xFF)}; + + const uint8_t ffe_cfg[4] = { + vendor_ffe_preset_table[hw_lane_settings[0].FFE_PRESET.settings.level] & ffe_mask[0], + vendor_ffe_preset_table[hw_lane_settings[1].FFE_PRESET.settings.level] & ffe_mask[1], + vendor_ffe_preset_table[hw_lane_settings[2].FFE_PRESET.settings.level] & ffe_mask[2], + vendor_ffe_preset_table[hw_lane_settings[3].FFE_PRESET.settings.level] & ffe_mask[3]}; + + const uint8_t dp_type = dp_dio_fixed_vs_pe_retimer_lane_cfg_to_hw_cfg(link); + + const uint8_t vendor_lttpr_write_data_ffe1[4] = {0x01, 0x50, dp_type, 0x0F}; + const uint8_t vendor_lttpr_write_data_ffe2[4] = {0x01, 0x55, dp_type, ffe_cfg[0]}; + const uint8_t vendor_lttpr_write_data_ffe3[4] = {0x01, 0x56, dp_type, ffe_cfg[1]}; + const uint8_t vendor_lttpr_write_data_ffe4[4] = {0x01, 0x57, dp_type, ffe_cfg[2]}; + const uint8_t vendor_lttpr_write_data_ffe5[4] = {0x01, 0x58, dp_type, ffe_cfg[3]}; + + link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, + &vendor_lttpr_write_data_ffe1[0], sizeof(vendor_lttpr_write_data_ffe1)); + link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, + &vendor_lttpr_write_data_ffe2[0], sizeof(vendor_lttpr_write_data_ffe2)); + link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, + &vendor_lttpr_write_data_ffe3[0], sizeof(vendor_lttpr_write_data_ffe3)); + link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, + &vendor_lttpr_write_data_ffe4[0], sizeof(vendor_lttpr_write_data_ffe4)); + link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, + &vendor_lttpr_write_data_ffe5[0], sizeof(vendor_lttpr_write_data_ffe5)); +} + +static void dp_hpo_fixed_vs_pe_retimer_program_override_test_pattern(struct dc_link *link, + struct encoder_set_dp_phy_pattern_param *tp_params) +{ + const uint8_t vendor_lttpr_write_data_pg0[4] = {0x1, 0x11, 0x0, 0x0}; + const uint8_t vendor_lttpr_write_data_pg1[4] = {0x1, 0x50, 0x50, 0x0}; + const uint8_t vendor_lttpr_write_data_pg2[4] = {0x1, 0x51, 0x50, 0x0}; + const uint8_t vendor_lttpr_write_data_pg3[4] = {0x1, 0x10, 0x58, 0x21}; + const uint8_t vendor_lttpr_write_data_pg4[4] = {0x1, 0x10, 0x59, 0x21}; + const uint8_t vendor_lttpr_write_data_pg5[4] = {0x1, 0x1C, 0x58, 0x4F}; + const uint8_t vendor_lttpr_write_data_pg6[4] = {0x1, 0x1C, 0x59, 0x4F}; + const uint8_t vendor_lttpr_write_data_pg7[4] = {0x1, 0x30, 0x51, 0x20}; + const uint8_t vendor_lttpr_write_data_pg8[4] = {0x1, 0x30, 0x52, 0x20}; + const uint8_t vendor_lttpr_write_data_pg9[4] = {0x1, 0x30, 0x54, 0x20}; + const uint8_t vendor_lttpr_write_data_pg10[4] = {0x1, 0x30, 0x55, 0x20}; + + link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, + &vendor_lttpr_write_data_pg0[0], sizeof(vendor_lttpr_write_data_pg0)); + link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, + &vendor_lttpr_write_data_pg1[0], sizeof(vendor_lttpr_write_data_pg1)); + link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, + &vendor_lttpr_write_data_pg2[0], sizeof(vendor_lttpr_write_data_pg2)); + link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, + &vendor_lttpr_write_data_pg3[0], sizeof(vendor_lttpr_write_data_pg3)); + link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, + &vendor_lttpr_write_data_pg4[0], sizeof(vendor_lttpr_write_data_pg4)); + link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, + &vendor_lttpr_write_data_pg5[0], sizeof(vendor_lttpr_write_data_pg5)); + link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, + &vendor_lttpr_write_data_pg6[0], sizeof(vendor_lttpr_write_data_pg6)); + + if (link->cur_link_settings.lane_count == LANE_COUNT_FOUR) + link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, + &vendor_lttpr_write_data_pg7[0], sizeof(vendor_lttpr_write_data_pg7)); + + link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, + &vendor_lttpr_write_data_pg8[0], sizeof(vendor_lttpr_write_data_pg8)); + + if (link->cur_link_settings.lane_count == LANE_COUNT_FOUR) + link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, + &vendor_lttpr_write_data_pg9[0], sizeof(vendor_lttpr_write_data_pg9)); + + link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, + &vendor_lttpr_write_data_pg10[0], sizeof(vendor_lttpr_write_data_pg10)); +} + +static bool dp_hpo_fixed_vs_pe_retimer_set_override_test_pattern(struct dc_link *link, + const struct link_resource *link_res, struct encoder_set_dp_phy_pattern_param *tp_params, + const struct link_hwss *link_hwss) +{ + struct encoder_set_dp_phy_pattern_param hw_tp_params = { 0 }; + const uint8_t vendor_lttpr_exit_manual_automation_0[4] = {0x1, 0x11, 0x0, 0x06}; + + if (tp_params == NULL) + return false; + + if (tp_params->dp_phy_pattern < DP_TEST_PATTERN_SQUARE_BEGIN || + tp_params->dp_phy_pattern > DP_TEST_PATTERN_SQUARE_END) { + // Deprogram overrides from previously set square wave override + if (link->current_test_pattern == DP_TEST_PATTERN_80BIT_CUSTOM || + link->current_test_pattern == DP_TEST_PATTERN_D102) + link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, + &vendor_lttpr_exit_manual_automation_0[0], + sizeof(vendor_lttpr_exit_manual_automation_0)); + else + dp_dio_fixed_vs_pe_retimer_exit_manual_automation(link); + + return false; + } + + hw_tp_params.dp_phy_pattern = DP_TEST_PATTERN_PRBS31; + hw_tp_params.dp_panel_mode = tp_params->dp_panel_mode; + + if (link_hwss->ext.set_dp_link_test_pattern) + link_hwss->ext.set_dp_link_test_pattern(link, link_res, &hw_tp_params); + + dp_hpo_fixed_vs_pe_retimer_program_override_test_pattern(link, tp_params); + + dp_hpo_fixed_vs_pe_retimer_set_tx_ffe(link, &link->cur_lane_setting[0]); + + return true; +} + +static void set_hpo_fixed_vs_pe_retimer_dp_link_test_pattern(struct dc_link *link, + const struct link_resource *link_res, + struct encoder_set_dp_phy_pattern_param *tp_params) +{ + if (!dp_hpo_fixed_vs_pe_retimer_set_override_test_pattern( + link, link_res, tp_params, get_hpo_dp_link_hwss())) { + link_res->hpo_dp_link_enc->funcs->set_link_test_pattern( + link_res->hpo_dp_link_enc, tp_params); + } + link->dc->link_srv->dp_trace_source_sequence(link, DPCD_SOURCE_SEQ_AFTER_SET_SOURCE_PATTERN); +} + +static void set_hpo_fixed_vs_pe_retimer_dp_lane_settings(struct dc_link *link, + const struct link_resource *link_res, + const struct dc_link_settings *link_settings, + const struct dc_lane_settings lane_settings[LANE_COUNT_DP_MAX]) +{ + link_res->hpo_dp_link_enc->funcs->set_ffe( + link_res->hpo_dp_link_enc, + link_settings, + lane_settings[0].FFE_PRESET.raw); + + // FFE is programmed when retimer is programmed for SQ128, but explicit + // programming needed here as well in case FFE-only update is requested + if (link->current_test_pattern >= DP_TEST_PATTERN_SQUARE_BEGIN && + link->current_test_pattern <= DP_TEST_PATTERN_SQUARE_END) + dp_hpo_fixed_vs_pe_retimer_set_tx_ffe(link, &lane_settings[0]); +} + +static void enable_hpo_fixed_vs_pe_retimer_dp_link_output(struct dc_link *link, + const struct link_resource *link_res, + enum signal_type signal, + enum clock_source_id clock_source, + const struct dc_link_settings *link_settings) +{ + if (link_settings->lane_count == LANE_COUNT_FOUR) + enable_dio_fixed_vs_pe_retimer_program_4lane_output(link); + + enable_hpo_dp_link_output(link, link_res, signal, clock_source, link_settings); +} + +static const struct link_hwss hpo_fixed_vs_pe_retimer_dp_link_hwss = { + .setup_stream_encoder = setup_hpo_dp_stream_encoder, + .reset_stream_encoder = reset_hpo_dp_stream_encoder, + .setup_stream_attribute = setup_hpo_dp_stream_attribute, + .disable_link_output = disable_hpo_dp_link_output, + .setup_audio_output = setup_hpo_dp_audio_output, + .enable_audio_packet = enable_hpo_dp_audio_packet, + .disable_audio_packet = disable_hpo_dp_audio_packet, + .ext = { + .set_throttled_vcp_size = set_hpo_dp_throttled_vcp_size, + .set_hblank_min_symbol_width = set_hpo_dp_hblank_min_symbol_width, + .enable_dp_link_output = enable_hpo_fixed_vs_pe_retimer_dp_link_output, + .set_dp_link_test_pattern = set_hpo_fixed_vs_pe_retimer_dp_link_test_pattern, + .set_dp_lane_settings = set_hpo_fixed_vs_pe_retimer_dp_lane_settings, + .update_stream_allocation_table = update_hpo_dp_stream_allocation_table, + }, +}; + +bool requires_fixed_vs_pe_retimer_hpo_link_hwss(const struct dc_link *link) +{ + if (!(link->chip_caps & EXT_DISPLAY_PATH_CAPS__DP_FIXED_VS_EN)) + return false; + + if (!link->dpcd_caps.lttpr_caps.main_link_channel_coding.bits.DP_128b_132b_SUPPORTED) + return false; + + return true; +} + +const struct link_hwss *get_hpo_fixed_vs_pe_retimer_dp_link_hwss(void) +{ + return &hpo_fixed_vs_pe_retimer_dp_link_hwss; +} |