diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 885 |
1 files changed, 751 insertions, 134 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c index 504055fc70e8..fd9e69634c50 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c @@ -4,12 +4,8 @@ #include "dc_link_dp.h" #include "dm_helpers.h" #include "opp.h" -#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT #include "dsc.h" -#endif -#if defined(CONFIG_DRM_AMD_DC_DCN2_0) #include "resource.h" -#endif #include "inc/core_types.h" #include "link_hwss.h" @@ -21,6 +17,9 @@ #define DC_LOGGER \ link->ctx->logger + +#define DP_REPEATER_CONFIGURATION_AND_STATUS_SIZE 0x50 + /* maximum pre emphasis level allowed for each voltage swing level*/ static const enum dc_pre_emphasis voltage_swing_to_pre_emphasis[] = { PRE_EMPHASIS_LEVEL3, @@ -221,19 +220,31 @@ static enum dpcd_training_patterns return dpcd_tr_pattern; } +static inline bool is_repeater(struct dc_link *link, uint32_t offset) +{ + return (!link->is_lttpr_mode_transparent && offset != 0); +} + static void dpcd_set_lt_pattern_and_lane_settings( struct dc_link *link, const struct link_training_settings *lt_settings, - enum dc_dp_training_pattern pattern) + enum dc_dp_training_pattern pattern, + uint32_t offset) { union dpcd_training_lane dpcd_lane[LANE_COUNT_DP_MAX] = { { {0} } }; - const uint32_t dpcd_base_lt_offset = - DP_TRAINING_PATTERN_SET; + + uint32_t dpcd_base_lt_offset; + uint8_t dpcd_lt_buffer[5] = {0}; union dpcd_training_pattern dpcd_pattern = { {0} }; uint32_t lane; uint32_t size_in_bytes; bool edp_workaround = false; /* TODO link_prop.INTERNAL */ + dpcd_base_lt_offset = DP_TRAINING_PATTERN_SET; + + if (is_repeater(link, offset)) + dpcd_base_lt_offset = DP_TRAINING_PATTERN_SET_PHY_REPEATER1 + + ((DP_REPEATER_CONFIGURATION_AND_STATUS_SIZE) * (offset - 1)); /***************************************************************** * DpcdAddress_TrainingPatternSet @@ -241,14 +252,21 @@ static void dpcd_set_lt_pattern_and_lane_settings( dpcd_pattern.v1_4.TRAINING_PATTERN_SET = dc_dp_training_pattern_to_dpcd_training_pattern(link, pattern); - dpcd_lt_buffer[DP_TRAINING_PATTERN_SET - dpcd_base_lt_offset] + dpcd_lt_buffer[DP_TRAINING_PATTERN_SET - DP_TRAINING_PATTERN_SET] = dpcd_pattern.raw; - DC_LOG_HW_LINK_TRAINING("%s\n %x pattern = %x\n", - __func__, - DP_TRAINING_PATTERN_SET, - dpcd_pattern.v1_4.TRAINING_PATTERN_SET); - + if (is_repeater(link, offset)) { + DC_LOG_HW_LINK_TRAINING("%s\n LTTPR Repeater ID: %d\n 0x%X pattern = %x\n", + __func__, + offset, + dpcd_base_lt_offset, + dpcd_pattern.v1_4.TRAINING_PATTERN_SET); + } else { + DC_LOG_HW_LINK_TRAINING("%s\n 0x%X pattern = %x\n", + __func__, + dpcd_base_lt_offset, + dpcd_pattern.v1_4.TRAINING_PATTERN_SET); + } /***************************************************************** * DpcdAddress_Lane0Set -> DpcdAddress_Lane3Set *****************************************************************/ @@ -268,24 +286,35 @@ static void dpcd_set_lt_pattern_and_lane_settings( PRE_EMPHASIS_MAX_LEVEL ? 1 : 0); } - /* concatinate everything into one buffer*/ + /* concatenate everything into one buffer*/ size_in_bytes = lt_settings->link_settings.lane_count * sizeof(dpcd_lane[0]); // 0x00103 - 0x00102 memmove( - &dpcd_lt_buffer[DP_TRAINING_LANE0_SET - dpcd_base_lt_offset], + &dpcd_lt_buffer[DP_TRAINING_LANE0_SET - DP_TRAINING_PATTERN_SET], dpcd_lane, size_in_bytes); - DC_LOG_HW_LINK_TRAINING("%s:\n %x VS set = %x PE set = %x max VS Reached = %x max PE Reached = %x\n", - __func__, - DP_TRAINING_LANE0_SET, - dpcd_lane[0].bits.VOLTAGE_SWING_SET, - dpcd_lane[0].bits.PRE_EMPHASIS_SET, - dpcd_lane[0].bits.MAX_SWING_REACHED, - dpcd_lane[0].bits.MAX_PRE_EMPHASIS_REACHED); - + if (is_repeater(link, offset)) { + DC_LOG_HW_LINK_TRAINING("%s:\n LTTPR Repeater ID: %d\n" + " 0x%X VS set = %x PE set = %x max VS Reached = %x max PE Reached = %x\n", + __func__, + offset, + dpcd_base_lt_offset, + dpcd_lane[0].bits.VOLTAGE_SWING_SET, + dpcd_lane[0].bits.PRE_EMPHASIS_SET, + dpcd_lane[0].bits.MAX_SWING_REACHED, + dpcd_lane[0].bits.MAX_PRE_EMPHASIS_REACHED); + } else { + DC_LOG_HW_LINK_TRAINING("%s:\n 0x%X VS set = %x PE set = %x max VS Reached = %x max PE Reached = %x\n", + __func__, + dpcd_base_lt_offset, + dpcd_lane[0].bits.VOLTAGE_SWING_SET, + dpcd_lane[0].bits.PRE_EMPHASIS_SET, + dpcd_lane[0].bits.MAX_SWING_REACHED, + dpcd_lane[0].bits.MAX_PRE_EMPHASIS_REACHED); + } if (edp_workaround) { /* for eDP write in 2 parts because the 5-byte burst is * causing issues on some eDP panels (EPR#366724) @@ -495,8 +524,12 @@ static void get_lane_status_and_drive_settings( const struct link_training_settings *link_training_setting, union lane_status *ln_status, union lane_align_status_updated *ln_status_updated, - struct link_training_settings *req_settings) + struct link_training_settings *req_settings, + uint32_t offset) { + unsigned int lane01_status_address = DP_LANE0_1_STATUS; + uint8_t lane_adjust_offset = 4; + unsigned int lane01_adjust_address; uint8_t dpcd_buf[6] = {0}; union lane_adjust dpcd_lane_adjust[LANE_COUNT_DP_MAX] = { { {0} } }; struct link_training_settings request_settings = { {0} }; @@ -504,9 +537,16 @@ static void get_lane_status_and_drive_settings( memset(req_settings, '\0', sizeof(struct link_training_settings)); + if (is_repeater(link, offset)) { + lane01_status_address = + DP_LANE0_1_STATUS_PHY_REPEATER1 + + ((DP_REPEATER_CONFIGURATION_AND_STATUS_SIZE) * (offset - 1)); + lane_adjust_offset = 3; + } + core_link_read_dpcd( link, - DP_LANE0_1_STATUS, + lane01_status_address, (uint8_t *)(dpcd_buf), sizeof(dpcd_buf)); @@ -517,22 +557,47 @@ static void get_lane_status_and_drive_settings( ln_status[lane].raw = get_nibble_at_index(&dpcd_buf[0], lane); dpcd_lane_adjust[lane].raw = - get_nibble_at_index(&dpcd_buf[4], lane); + get_nibble_at_index(&dpcd_buf[lane_adjust_offset], lane); } ln_status_updated->raw = dpcd_buf[2]; - DC_LOG_HW_LINK_TRAINING("%s:\n%x Lane01Status = %x\n %x Lane23Status = %x\n ", - __func__, - DP_LANE0_1_STATUS, dpcd_buf[0], - DP_LANE2_3_STATUS, dpcd_buf[1]); - - DC_LOG_HW_LINK_TRAINING("%s:\n %x Lane01AdjustRequest = %x\n %x Lane23AdjustRequest = %x\n", - __func__, - DP_ADJUST_REQUEST_LANE0_1, - dpcd_buf[4], - DP_ADJUST_REQUEST_LANE2_3, - dpcd_buf[5]); + if (is_repeater(link, offset)) { + DC_LOG_HW_LINK_TRAINING("%s:\n LTTPR Repeater ID: %d\n" + " 0x%X Lane01Status = %x\n 0x%X Lane23Status = %x\n ", + __func__, + offset, + lane01_status_address, dpcd_buf[0], + lane01_status_address + 1, dpcd_buf[1]); + } else { + DC_LOG_HW_LINK_TRAINING("%s:\n 0x%X Lane01Status = %x\n 0x%X Lane23Status = %x\n ", + __func__, + lane01_status_address, dpcd_buf[0], + lane01_status_address + 1, dpcd_buf[1]); + } + lane01_adjust_address = DP_ADJUST_REQUEST_LANE0_1; + + if (is_repeater(link, offset)) + lane01_adjust_address = DP_ADJUST_REQUEST_LANE0_1_PHY_REPEATER1 + + ((DP_REPEATER_CONFIGURATION_AND_STATUS_SIZE) * (offset - 1)); + + if (is_repeater(link, offset)) { + DC_LOG_HW_LINK_TRAINING("%s:\n LTTPR Repeater ID: %d\n" + " 0x%X Lane01AdjustRequest = %x\n 0x%X Lane23AdjustRequest = %x\n", + __func__, + offset, + lane01_adjust_address, + dpcd_buf[lane_adjust_offset], + lane01_adjust_address + 1, + dpcd_buf[lane_adjust_offset + 1]); + } else { + DC_LOG_HW_LINK_TRAINING("%s:\n 0x%X Lane01AdjustRequest = %x\n 0x%X Lane23AdjustRequest = %x\n", + __func__, + lane01_adjust_address, + dpcd_buf[lane_adjust_offset], + lane01_adjust_address + 1, + dpcd_buf[lane_adjust_offset + 1]); + } /*copy to req_settings*/ request_settings.link_settings.lane_count = @@ -571,10 +636,18 @@ static void get_lane_status_and_drive_settings( static void dpcd_set_lane_settings( struct dc_link *link, - const struct link_training_settings *link_training_setting) + const struct link_training_settings *link_training_setting, + uint32_t offset) { union dpcd_training_lane dpcd_lane[LANE_COUNT_DP_MAX] = {{{0}}}; uint32_t lane; + unsigned int lane0_set_address; + + lane0_set_address = DP_TRAINING_LANE0_SET; + + if (is_repeater(link, offset)) + lane0_set_address = DP_TRAINING_LANE0_SET_PHY_REPEATER1 + + ((DP_REPEATER_CONFIGURATION_AND_STATUS_SIZE) * (offset - 1)); for (lane = 0; lane < (uint32_t)(link_training_setting-> @@ -597,7 +670,7 @@ static void dpcd_set_lane_settings( } core_link_write_dpcd(link, - DP_TRAINING_LANE0_SET, + lane0_set_address, (uint8_t *)(dpcd_lane), link_training_setting->link_settings.lane_count); @@ -620,14 +693,26 @@ static void dpcd_set_lane_settings( } */ - DC_LOG_HW_LINK_TRAINING("%s\n %x VS set = %x PE set = %x max VS Reached = %x max PE Reached = %x\n", - __func__, - DP_TRAINING_LANE0_SET, - dpcd_lane[0].bits.VOLTAGE_SWING_SET, - dpcd_lane[0].bits.PRE_EMPHASIS_SET, - dpcd_lane[0].bits.MAX_SWING_REACHED, - dpcd_lane[0].bits.MAX_PRE_EMPHASIS_REACHED); + if (is_repeater(link, offset)) { + DC_LOG_HW_LINK_TRAINING("%s\n LTTPR Repeater ID: %d\n" + " 0x%X VS set = %x PE set = %x max VS Reached = %x max PE Reached = %x\n", + __func__, + offset, + lane0_set_address, + dpcd_lane[0].bits.VOLTAGE_SWING_SET, + dpcd_lane[0].bits.PRE_EMPHASIS_SET, + dpcd_lane[0].bits.MAX_SWING_REACHED, + dpcd_lane[0].bits.MAX_PRE_EMPHASIS_REACHED); + } else { + DC_LOG_HW_LINK_TRAINING("%s\n 0x%X VS set = %x PE set = %x max VS Reached = %x max PE Reached = %x\n", + __func__, + lane0_set_address, + dpcd_lane[0].bits.VOLTAGE_SWING_SET, + dpcd_lane[0].bits.PRE_EMPHASIS_SET, + dpcd_lane[0].bits.MAX_SWING_REACHED, + dpcd_lane[0].bits.MAX_PRE_EMPHASIS_REACHED); + } link->cur_lane_setting = link_training_setting->lane_settings[0]; } @@ -647,17 +732,6 @@ static bool is_max_vs_reached( } -void dc_link_dp_set_drive_settings( - struct dc_link *link, - struct link_training_settings *lt_settings) -{ - /* program ASIC PHY settings*/ - dp_set_hw_lane_settings(link, lt_settings); - - /* Notify DP sink the PHY settings from source */ - dpcd_set_lane_settings(link, lt_settings); -} - static bool perform_post_lt_adj_req_sequence( struct dc_link *link, struct link_training_settings *lt_settings) @@ -690,7 +764,8 @@ static bool perform_post_lt_adj_req_sequence( lt_settings, dpcd_lane_status, &dpcd_lane_status_updated, - &req_settings); + &req_settings, + DPRX); if (dpcd_lane_status_updated.bits. POST_LT_ADJ_REQ_IN_PROGRESS == 0) @@ -747,6 +822,31 @@ static bool perform_post_lt_adj_req_sequence( } +/* Only used for channel equalization */ +static uint32_t translate_training_aux_read_interval(uint32_t dpcd_aux_read_interval) +{ + unsigned int aux_rd_interval_us = 400; + + switch (dpcd_aux_read_interval) { + case 0x01: + aux_rd_interval_us = 400; + break; + case 0x02: + aux_rd_interval_us = 4000; + break; + case 0x03: + aux_rd_interval_us = 8000; + break; + case 0x04: + aux_rd_interval_us = 16000; + break; + default: + break; + } + + return aux_rd_interval_us; +} + static enum link_training_result get_cr_failure(enum dc_lane_count ln_count, union lane_status *dpcd_lane_status) { @@ -765,37 +865,55 @@ static enum link_training_result get_cr_failure(enum dc_lane_count ln_count, static enum link_training_result perform_channel_equalization_sequence( struct dc_link *link, - struct link_training_settings *lt_settings) + struct link_training_settings *lt_settings, + uint32_t offset) { struct link_training_settings req_settings; enum dc_dp_training_pattern tr_pattern; uint32_t retries_ch_eq; + uint32_t wait_time_microsec; enum dc_lane_count lane_count = lt_settings->link_settings.lane_count; union lane_align_status_updated dpcd_lane_status_updated = { {0} }; union lane_status dpcd_lane_status[LANE_COUNT_DP_MAX] = { { {0} } }; + /* Note: also check that TPS4 is a supported feature*/ + tr_pattern = lt_settings->pattern_for_eq; - dp_set_hw_training_pattern(link, tr_pattern); + if (is_repeater(link, offset)) + tr_pattern = DP_TRAINING_PATTERN_SEQUENCE_4; + + dp_set_hw_training_pattern(link, tr_pattern, offset); for (retries_ch_eq = 0; retries_ch_eq <= LINK_TRAINING_MAX_RETRY_COUNT; retries_ch_eq++) { - dp_set_hw_lane_settings(link, lt_settings); + dp_set_hw_lane_settings(link, lt_settings, offset); /* 2. update DPCD*/ if (!retries_ch_eq) /* EPR #361076 - write as a 5-byte burst, - * but only for the 1-st iteration*/ + * but only for the 1-st iteration + */ + dpcd_set_lt_pattern_and_lane_settings( link, lt_settings, - tr_pattern); + tr_pattern, offset); else - dpcd_set_lane_settings(link, lt_settings); + dpcd_set_lane_settings(link, lt_settings, offset); /* 3. wait for receiver to lock-on*/ - wait_for_training_aux_rd_interval(link, lt_settings->eq_pattern_time); + wait_time_microsec = lt_settings->eq_pattern_time; + + if (is_repeater(link, offset)) + wait_time_microsec = + translate_training_aux_read_interval( + link->dpcd_caps.lttpr_caps.aux_rd_interval[offset - 1]); + + wait_for_training_aux_rd_interval( + link, + wait_time_microsec); /* 4. Read lane status and requested * drive settings as set by the sink*/ @@ -805,7 +923,8 @@ static enum link_training_result perform_channel_equalization_sequence( lt_settings, dpcd_lane_status, &dpcd_lane_status_updated, - &req_settings); + &req_settings, + offset); /* 5. check CR done*/ if (!is_cr_done(lane_count, dpcd_lane_status)) @@ -824,13 +943,16 @@ static enum link_training_result perform_channel_equalization_sequence( return LINK_TRAINING_EQ_FAIL_EQ; } +#define TRAINING_AUX_RD_INTERVAL 100 //us static enum link_training_result perform_clock_recovery_sequence( struct dc_link *link, - struct link_training_settings *lt_settings) + struct link_training_settings *lt_settings, + uint32_t offset) { uint32_t retries_cr; uint32_t retry_count; + uint32_t wait_time_microsec; struct link_training_settings req_settings; enum dc_lane_count lane_count = lt_settings->link_settings.lane_count; enum dc_dp_training_pattern tr_pattern = DP_TRAINING_PATTERN_SEQUENCE_1; @@ -840,7 +962,7 @@ static enum link_training_result perform_clock_recovery_sequence( retries_cr = 0; retry_count = 0; - dp_set_hw_training_pattern(link, tr_pattern); + dp_set_hw_training_pattern(link, tr_pattern, offset); /* najeeb - The synaptics MST hub can put the LT in * infinite loop by switching the VS @@ -857,25 +979,33 @@ static enum link_training_result perform_clock_recovery_sequence( /* 1. call HWSS to set lane settings*/ dp_set_hw_lane_settings( link, - lt_settings); + lt_settings, + offset); /* 2. update DPCD of the receiver*/ - if (!retries_cr) + if (!retry_count) /* EPR #361076 - write as a 5-byte burst, * but only for the 1-st iteration.*/ dpcd_set_lt_pattern_and_lane_settings( link, lt_settings, - tr_pattern); + tr_pattern, + offset); else dpcd_set_lane_settings( link, - lt_settings); + lt_settings, + offset); /* 3. wait receiver to lock-on*/ + wait_time_microsec = lt_settings->cr_pattern_time; + + if (!link->is_lttpr_mode_transparent) + wait_time_microsec = TRAINING_AUX_RD_INTERVAL; + wait_for_training_aux_rd_interval( link, - lt_settings->cr_pattern_time); + wait_time_microsec); /* 4. Read lane status and requested drive * settings as set by the sink @@ -885,7 +1015,8 @@ static enum link_training_result perform_clock_recovery_sequence( lt_settings, dpcd_lane_status, &dpcd_lane_status_updated, - &req_settings); + &req_settings, + offset); /* 5. check CR done*/ if (is_cr_done(lane_count, dpcd_lane_status)) @@ -1054,6 +1185,102 @@ static void initialize_training_settings( lt_settings->enhanced_framing = 1; } +static uint8_t convert_to_count(uint8_t lttpr_repeater_count) +{ + switch (lttpr_repeater_count) { + case 0x80: // 1 lttpr repeater + return 1; + case 0x40: // 2 lttpr repeaters + return 2; + case 0x20: // 3 lttpr repeaters + return 3; + case 0x10: // 4 lttpr repeaters + return 4; + case 0x08: // 5 lttpr repeaters + return 5; + case 0x04: // 6 lttpr repeaters + return 6; + case 0x02: // 7 lttpr repeaters + return 7; + case 0x01: // 8 lttpr repeaters + return 8; + default: + break; + } + return 0; // invalid value +} + +static void configure_lttpr_mode(struct dc_link *link) +{ + /* aux timeout is already set to extended */ + /* RESET/SET lttpr mode to enable non transparent mode */ + uint8_t repeater_cnt; + uint32_t aux_interval_address; + uint8_t repeater_id; + enum dc_status result = DC_ERROR_UNEXPECTED; + uint8_t repeater_mode = DP_PHY_REPEATER_MODE_TRANSPARENT; + + DC_LOG_HW_LINK_TRAINING("%s\n Set LTTPR to Transparent Mode\n", __func__); + result = core_link_write_dpcd(link, + DP_PHY_REPEATER_MODE, + (uint8_t *)&repeater_mode, + sizeof(repeater_mode)); + + if (result == DC_OK) { + link->dpcd_caps.lttpr_caps.mode = repeater_mode; + } + + if (!link->is_lttpr_mode_transparent) { + + DC_LOG_HW_LINK_TRAINING("%s\n Set LTTPR to Non Transparent Mode\n", __func__); + + repeater_mode = DP_PHY_REPEATER_MODE_NON_TRANSPARENT; + result = core_link_write_dpcd(link, + DP_PHY_REPEATER_MODE, + (uint8_t *)&repeater_mode, + sizeof(repeater_mode)); + + if (result == DC_OK) { + link->dpcd_caps.lttpr_caps.mode = repeater_mode; + } + + repeater_cnt = convert_to_count(link->dpcd_caps.lttpr_caps.phy_repeater_cnt); + for (repeater_id = repeater_cnt; repeater_id > 0; repeater_id--) { + aux_interval_address = DP_TRAINING_AUX_RD_INTERVAL_PHY_REPEATER1 + + ((DP_REPEATER_CONFIGURATION_AND_STATUS_SIZE) * (repeater_id - 1)); + core_link_read_dpcd( + link, + aux_interval_address, + (uint8_t *)&link->dpcd_caps.lttpr_caps.aux_rd_interval[repeater_id - 1], + sizeof(link->dpcd_caps.lttpr_caps.aux_rd_interval[repeater_id - 1])); + link->dpcd_caps.lttpr_caps.aux_rd_interval[repeater_id - 1] &= 0x7F; + } + } +} + +static void repeater_training_done(struct dc_link *link, uint32_t offset) +{ + union dpcd_training_pattern dpcd_pattern = { {0} }; + + const uint32_t dpcd_base_lt_offset = + DP_TRAINING_PATTERN_SET_PHY_REPEATER1 + + ((DP_REPEATER_CONFIGURATION_AND_STATUS_SIZE) * (offset - 1)); + /* Set training not in progress*/ + dpcd_pattern.v1_4.TRAINING_PATTERN_SET = DPCD_TRAINING_PATTERN_VIDEOIDLE; + + core_link_write_dpcd( + link, + dpcd_base_lt_offset, + &dpcd_pattern.raw, + 1); + + DC_LOG_HW_LINK_TRAINING("%s\n LTTPR Id: %d 0x%X pattern = %x\n", + __func__, + offset, + dpcd_base_lt_offset, + dpcd_pattern.v1_4.TRAINING_PATTERN_SET); +} + static void print_status_message( struct dc_link *link, const struct link_training_settings *lt_settings, @@ -1133,6 +1360,17 @@ static void print_status_message( lt_spread); } +void dc_link_dp_set_drive_settings( + struct dc_link *link, + struct link_training_settings *lt_settings) +{ + /* program ASIC PHY settings*/ + dp_set_hw_lane_settings(link, lt_settings, DPRX); + + /* Notify DP sink the PHY settings from source */ + dpcd_set_lane_settings(link, lt_settings, DPRX); +} + bool dc_link_dp_perform_link_training_skip_aux( struct dc_link *link, const struct dc_link_settings *link_setting) @@ -1149,10 +1387,10 @@ bool dc_link_dp_perform_link_training_skip_aux( /* 1. Perform_clock_recovery_sequence. */ /* transmit training pattern for clock recovery */ - dp_set_hw_training_pattern(link, pattern_for_cr); + dp_set_hw_training_pattern(link, pattern_for_cr, DPRX); /* call HWSS to set lane settings*/ - dp_set_hw_lane_settings(link, <_settings); + dp_set_hw_lane_settings(link, <_settings, DPRX); /* wait receiver to lock-on*/ wait_for_training_aux_rd_interval(link, lt_settings.cr_pattern_time); @@ -1160,10 +1398,10 @@ bool dc_link_dp_perform_link_training_skip_aux( /* 2. Perform_channel_equalization_sequence. */ /* transmit training pattern for channel equalization. */ - dp_set_hw_training_pattern(link, lt_settings.pattern_for_eq); + dp_set_hw_training_pattern(link, lt_settings.pattern_for_eq, DPRX); /* call HWSS to set lane settings*/ - dp_set_hw_lane_settings(link, <_settings); + dp_set_hw_lane_settings(link, <_settings, DPRX); /* wait receiver to lock-on. */ wait_for_training_aux_rd_interval(link, lt_settings.eq_pattern_time); @@ -1185,9 +1423,10 @@ enum link_training_result dc_link_dp_perform_link_training( { enum link_training_result status = LINK_TRAINING_SUCCESS; struct link_training_settings lt_settings; -#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT + bool fec_enable; -#endif + uint8_t repeater_cnt; + uint8_t repeater_id; initialize_training_settings( link, @@ -1198,23 +1437,47 @@ enum link_training_result dc_link_dp_perform_link_training( /* 1. set link rate, lane count and spread. */ dpcd_set_link_settings(link, <_settings); -#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT if (link->preferred_training_settings.fec_enable != NULL) fec_enable = *link->preferred_training_settings.fec_enable; else fec_enable = true; dp_set_fec_ready(link, fec_enable); -#endif + if (!link->is_lttpr_mode_transparent) { + /* Configure lttpr mode */ + configure_lttpr_mode(link); - /* 2. perform link training (set link training done - * to false is done as well) - */ - status = perform_clock_recovery_sequence(link, <_settings); + /* 2. perform link training (set link training done + * to false is done as well) + */ + repeater_cnt = convert_to_count(link->dpcd_caps.lttpr_caps.phy_repeater_cnt); + + for (repeater_id = repeater_cnt; (repeater_id > 0 && status == LINK_TRAINING_SUCCESS); + repeater_id--) { + status = perform_clock_recovery_sequence(link, <_settings, repeater_id); + + if (status != LINK_TRAINING_SUCCESS) + break; + + status = perform_channel_equalization_sequence(link, + <_settings, + repeater_id); + + if (status != LINK_TRAINING_SUCCESS) + break; + + repeater_training_done(link, repeater_id); + } + } + + if (status == LINK_TRAINING_SUCCESS) { + status = perform_clock_recovery_sequence(link, <_settings, DPRX); if (status == LINK_TRAINING_SUCCESS) { status = perform_channel_equalization_sequence(link, - <_settings); + <_settings, + DPRX); + } } if ((status == LINK_TRAINING_SUCCESS) || !skip_video_pattern) { @@ -1233,23 +1496,58 @@ enum link_training_result dc_link_dp_perform_link_training( } bool perform_link_training_with_retries( - struct dc_link *link, const struct dc_link_settings *link_setting, bool skip_video_pattern, - int attempts) + int attempts, + struct pipe_ctx *pipe_ctx, + enum signal_type signal) { uint8_t j; uint8_t delay_between_attempts = LINK_TRAINING_RETRY_DELAY; + struct dc_stream_state *stream = pipe_ctx->stream; + struct dc_link *link = stream->link; + enum dp_panel_mode panel_mode = dp_get_panel_mode(link); for (j = 0; j < attempts; ++j) { - if (dc_link_dp_perform_link_training( + dp_enable_link_phy( + link, + signal, + pipe_ctx->clock_source->id, + link_setting); + + if (stream->sink_patches.dppowerup_delay > 0) { + int delay_dp_power_up_in_ms = stream->sink_patches.dppowerup_delay; + + msleep(delay_dp_power_up_in_ms); + } + + dp_set_panel_mode(link, panel_mode); + + /* We need to do this before the link training to ensure the idle pattern in SST + * mode will be sent right after the link training + */ + link->link_enc->funcs->connect_dig_be_to_fe(link->link_enc, + pipe_ctx->stream_res.stream_enc->id, true); + + if (link->aux_access_disabled) { + dc_link_dp_perform_link_training_skip_aux(link, link_setting); + return true; + } else if (dc_link_dp_perform_link_training( link, link_setting, skip_video_pattern) == LINK_TRAINING_SUCCESS) return true; + /* latest link training still fail, skip delay and keep PHY on + */ + if (j == (attempts - 1)) + break; + + dp_disable_link_phy(link, signal); + msleep(delay_between_attempts); + delay_between_attempts += LINK_TRAINING_RETRY_DELAY; } @@ -1321,9 +1619,7 @@ enum link_training_result dc_link_dp_sync_lt_attempt( enum link_training_result lt_status = LINK_TRAINING_SUCCESS; enum dp_panel_mode panel_mode = DP_PANEL_MODE_DEFAULT; enum clock_source_id dp_cs_id = CLOCK_SOURCE_ID_EXTERNAL; -#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT bool fec_enable = false; -#endif initialize_training_settings( link, @@ -1343,11 +1639,9 @@ enum link_training_result dc_link_dp_sync_lt_attempt( dp_enable_link_phy(link, link->connector_signal, dp_cs_id, link_settings); -#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT /* Set FEC enable */ fec_enable = lt_overrides->fec_enable && *lt_overrides->fec_enable; dp_set_fec_ready(link, fec_enable); -#endif if (lt_overrides->alternate_scrambler_reset) { if (*lt_overrides->alternate_scrambler_reset) @@ -1367,10 +1661,11 @@ enum link_training_result dc_link_dp_sync_lt_attempt( /* 2. perform link training (set link training done * to false is done as well) */ - lt_status = perform_clock_recovery_sequence(link, <_settings); + lt_status = perform_clock_recovery_sequence(link, <_settings, DPRX); if (lt_status == LINK_TRAINING_SUCCESS) { lt_status = perform_channel_equalization_sequence(link, - <_settings); + <_settings, + DPRX); } /* 3. Sync LT must skip TRAINING_PATTERN_SET:0 (video pattern)*/ @@ -1387,9 +1682,7 @@ bool dc_link_dp_sync_lt_end(struct dc_link *link, bool link_down) */ if (link_down == true) { dp_disable_link_phy(link, link->connector_signal); -#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT dp_set_fec_ready(link, false); -#endif } link->sync_lt_in_progress = false; @@ -1423,6 +1716,22 @@ static struct dc_link_settings get_max_link_cap(struct dc_link *link) max_link_cap.link_spread) max_link_cap.link_spread = link->reported_link_cap.link_spread; + /* + * account for lttpr repeaters cap + * notes: repeaters do not snoop in the DPRX Capabilities addresses (3.6.3). + */ + if (!link->is_lttpr_mode_transparent) { + if (link->dpcd_caps.lttpr_caps.max_lane_count < max_link_cap.lane_count) + max_link_cap.lane_count = link->dpcd_caps.lttpr_caps.max_lane_count; + + if (link->dpcd_caps.lttpr_caps.max_link_rate < max_link_cap.link_rate) + max_link_cap.link_rate = link->dpcd_caps.lttpr_caps.max_link_rate; + + DC_LOG_HW_LINK_TRAINING("%s\n Training with LTTPR, max_lane count %d max_link rate %d \n", + __func__, + max_link_cap.lane_count, + max_link_cap.link_rate); + } return max_link_cap; } @@ -1568,6 +1877,13 @@ bool dp_verify_link_cap( max_link_cap = get_max_link_cap(link); + /* Grant extended timeout request */ + if (!link->is_lttpr_mode_transparent && link->dpcd_caps.lttpr_caps.max_ext_timeout > 0) { + uint8_t grant = link->dpcd_caps.lttpr_caps.max_ext_timeout & 0x80; + + core_link_write_dpcd(link, DP_PHY_REPEATER_EXTENDED_WAIT_TIMEOUT, &grant, sizeof(grant)); + } + /* TODO implement override and monitor patch later */ /* try to train the link from high to low to @@ -1576,6 +1892,16 @@ bool dp_verify_link_cap( /* disable PHY done possible by BIOS, will be done by driver itself */ dp_disable_link_phy(link, link->connector_signal); + /* Temporary Renoir-specific workaround for SWDEV-215184; + * PHY will sometimes be in bad state on hotplugging display from certain USB-C dongle, + * so add extra cycle of enabling and disabling the PHY before first link training. + */ + if (link->link_enc->features.flags.bits.DP_IS_USB_C && + link->dc->debug.usbc_combo_phy_reset_wa) { + dp_enable_link_phy(link, link->connector_signal, dp_cs_id, cur); + dp_disable_link_phy(link, link->connector_signal); + } + dp_cs_id = get_clock_source_id(link); /* link training starts with the maximum common settings @@ -2280,6 +2606,7 @@ static void dp_test_send_phy_test_pattern(struct dc_link *link) dc_link_dp_set_test_pattern( link, test_pattern, + DP_TEST_PATTERN_COLOR_SPACE_UNDEFINED, &link_training_settings, test_80_bit_pattern, (DP_TEST_80BIT_CUSTOM_PATTERN_79_72 - @@ -2291,6 +2618,8 @@ static void dp_test_send_link_test_pattern(struct dc_link *link) union link_test_pattern dpcd_test_pattern; union test_misc dpcd_test_params; enum dp_test_pattern test_pattern; + enum dp_test_pattern_color_space test_pattern_color_space = + DP_TEST_PATTERN_COLOR_SPACE_UNDEFINED; memset(&dpcd_test_pattern, 0, sizeof(dpcd_test_pattern)); memset(&dpcd_test_params, 0, sizeof(dpcd_test_params)); @@ -2325,14 +2654,105 @@ static void dp_test_send_link_test_pattern(struct dc_link *link) break; } + test_pattern_color_space = dpcd_test_params.bits.YCBCR_COEFS ? + DP_TEST_PATTERN_COLOR_SPACE_YCBCR709 : + DP_TEST_PATTERN_COLOR_SPACE_YCBCR601; + dc_link_dp_set_test_pattern( link, test_pattern, + test_pattern_color_space, NULL, NULL, 0); } +static void dp_test_get_audio_test_data(struct dc_link *link, bool disable_video) +{ + union audio_test_mode dpcd_test_mode = {0}; + struct audio_test_pattern_type dpcd_pattern_type = {0}; + union audio_test_pattern_period dpcd_pattern_period[AUDIO_CHANNELS_COUNT] = {0}; + enum dp_test_pattern test_pattern = DP_TEST_PATTERN_AUDIO_OPERATOR_DEFINED; + + struct pipe_ctx *pipes = link->dc->current_state->res_ctx.pipe_ctx; + struct pipe_ctx *pipe_ctx = &pipes[0]; + unsigned int channel_count; + unsigned int channel = 0; + unsigned int modes = 0; + unsigned int sampling_rate_in_hz = 0; + + // get audio test mode and test pattern parameters + core_link_read_dpcd( + link, + DP_TEST_AUDIO_MODE, + &dpcd_test_mode.raw, + sizeof(dpcd_test_mode)); + + core_link_read_dpcd( + link, + DP_TEST_AUDIO_PATTERN_TYPE, + &dpcd_pattern_type.value, + sizeof(dpcd_pattern_type)); + + channel_count = dpcd_test_mode.bits.channel_count + 1; + + // read pattern periods for requested channels when sawTooth pattern is requested + if (dpcd_pattern_type.value == AUDIO_TEST_PATTERN_SAWTOOTH || + dpcd_pattern_type.value == AUDIO_TEST_PATTERN_OPERATOR_DEFINED) { + + test_pattern = (dpcd_pattern_type.value == AUDIO_TEST_PATTERN_SAWTOOTH) ? + DP_TEST_PATTERN_AUDIO_SAWTOOTH : DP_TEST_PATTERN_AUDIO_OPERATOR_DEFINED; + // read period for each channel + for (channel = 0; channel < channel_count; channel++) { + core_link_read_dpcd( + link, + DP_TEST_AUDIO_PERIOD_CH1 + channel, + &dpcd_pattern_period[channel].raw, + sizeof(dpcd_pattern_period[channel])); + } + } + + // translate sampling rate + switch (dpcd_test_mode.bits.sampling_rate) { + case AUDIO_SAMPLING_RATE_32KHZ: + sampling_rate_in_hz = 32000; + break; + case AUDIO_SAMPLING_RATE_44_1KHZ: + sampling_rate_in_hz = 44100; + break; + case AUDIO_SAMPLING_RATE_48KHZ: + sampling_rate_in_hz = 48000; + break; + case AUDIO_SAMPLING_RATE_88_2KHZ: + sampling_rate_in_hz = 88200; + break; + case AUDIO_SAMPLING_RATE_96KHZ: + sampling_rate_in_hz = 96000; + break; + case AUDIO_SAMPLING_RATE_176_4KHZ: + sampling_rate_in_hz = 176400; + break; + case AUDIO_SAMPLING_RATE_192KHZ: + sampling_rate_in_hz = 192000; + break; + default: + sampling_rate_in_hz = 0; + break; + } + + link->audio_test_data.flags.test_requested = 1; + link->audio_test_data.flags.disable_video = disable_video; + link->audio_test_data.sampling_rate = sampling_rate_in_hz; + link->audio_test_data.channel_count = channel_count; + link->audio_test_data.pattern_type = test_pattern; + + if (test_pattern == DP_TEST_PATTERN_AUDIO_SAWTOOTH) { + for (modes = 0; modes < pipe_ctx->stream->audio_info.mode_count; modes++) { + link->audio_test_data.pattern_period[modes] = dpcd_pattern_period[modes].bits.pattern_period; + } + } +} + static void handle_automated_test(struct dc_link *link) { union test_request test_request; @@ -2362,6 +2782,12 @@ static void handle_automated_test(struct dc_link *link) dp_test_send_link_test_pattern(link); test_response.bits.ACK = 1; } + + if (test_request.bits.AUDIO_TEST_PATTERN) { + dp_test_get_audio_test_data(link, test_request.bits.TEST_AUDIO_DISABLED_VIDEO); + test_response.bits.ACK = 1; + } + if (test_request.bits.PHY_TEST_PATTERN) { dp_test_send_phy_test_pattern(link); test_response.bits.ACK = 1; @@ -2381,9 +2807,9 @@ bool dc_link_handle_hpd_rx_irq(struct dc_link *link, union hpd_irq_data *out_hpd union hpd_irq_data hpd_irq_dpcd_data = { { { {0} } } }; union device_service_irq device_service_clear = { { 0 } }; enum dc_status result; - bool status = false; struct pipe_ctx *pipe_ctx; + struct dc_link_settings previous_link_settings; int i; if (out_link_loss) @@ -2447,29 +2873,37 @@ bool dc_link_handle_hpd_rx_irq(struct dc_link *link, union hpd_irq_data *out_hpd /* For now we only handle 'Downstream port status' case. * If we got sink count changed it means * Downstream port status changed, - * then DM should call DC to do the detection. */ - if (hpd_rx_irq_check_link_loss_status( - link, - &hpd_irq_dpcd_data)) { + * then DM should call DC to do the detection. + * NOTE: Do not handle link loss on eDP since it is internal link*/ + if ((link->connector_signal != SIGNAL_TYPE_EDP) && + hpd_rx_irq_check_link_loss_status( + link, + &hpd_irq_dpcd_data)) { /* Connectivity log: link loss */ CONN_DATA_LINK_LOSS(link, hpd_irq_dpcd_data.raw, sizeof(hpd_irq_dpcd_data), "Status: "); - perform_link_training_with_retries(link, - &link->cur_link_settings, - true, LINK_TRAINING_ATTEMPTS); - for (i = 0; i < MAX_PIPES; i++) { pipe_ctx = &link->dc->current_state->res_ctx.pipe_ctx[i]; - if (pipe_ctx && pipe_ctx->stream && pipe_ctx->stream->link == link && - pipe_ctx->stream->dpms_off == false && - pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST) { - dc_link_allocate_mst_payload(pipe_ctx); - } + if (pipe_ctx && pipe_ctx->stream && pipe_ctx->stream->link == link) + break; } + if (pipe_ctx == NULL || pipe_ctx->stream == NULL) + return false; + + previous_link_settings = link->cur_link_settings; + + perform_link_training_with_retries(&previous_link_settings, + true, LINK_TRAINING_ATTEMPTS, + pipe_ctx, + pipe_ctx->stream->signal); + + if (pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST) + dc_link_reallocate_mst_payload(link); + status = false; if (out_link_loss) *out_link_loss = true; @@ -2697,7 +3131,6 @@ static void dp_wa_power_up_0010FA(struct dc_link *link, uint8_t *dpcd_data, int length) { int retry = 0; - union dp_downstream_port_present ds_port = { 0 }; if (!link->dpcd_caps.dpcd_rev.raw) { do { @@ -2710,9 +3143,6 @@ static void dp_wa_power_up_0010FA(struct dc_link *link, uint8_t *dpcd_data, } while (retry++ < 4 && !link->dpcd_caps.dpcd_rev.raw); } - ds_port.byte = dpcd_data[DP_DOWNSTREAMPORT_PRESENT - - DP_DPCD_REV]; - if (link->dpcd_caps.dongle_type == DISPLAY_DONGLE_DP_VGA_CONVERTER) { switch (link->dpcd_caps.branch_dev_id) { /* 0010FA active dongles (DP-VGA, DP-DLDVI converters) power down @@ -2737,7 +3167,11 @@ static void dp_wa_power_up_0010FA(struct dc_link *link, uint8_t *dpcd_data, static bool retrieve_link_cap(struct dc_link *link) { - uint8_t dpcd_data[DP_ADAPTER_CAP - DP_DPCD_REV + 1]; + /* DP_ADAPTER_CAP - DP_DPCD_REV + 1 == 16 and also DP_DSC_BITS_PER_PIXEL_INC - DP_DSC_SUPPORT + 1 == 16, + * which means size 16 will be good for both of those DPCD register block reads + */ + uint8_t dpcd_data[16]; + uint8_t lttpr_dpcd_data[6]; /*Only need to read 1 byte starting from DP_DPRX_FEATURE_ENUMERATION_LIST. */ @@ -2753,7 +3187,19 @@ static bool retrieve_link_cap(struct dc_link *link) int i; struct dp_sink_hw_fw_revision dp_hw_fw_revision; + /* Set default timeout to 3.2ms and read LTTPR capabilities */ + bool ext_timeout_support = link->dc->caps.extended_aux_timeout_support && + !link->dc->config.disable_extended_timeout_support; + + link->is_lttpr_mode_transparent = true; + + if (ext_timeout_support) { + dc_link_aux_configure_timeout(link->ddc, + LINK_AUX_DEFAULT_EXTENDED_TIMEOUT_PERIOD); + } + memset(dpcd_data, '\0', sizeof(dpcd_data)); + memset(lttpr_dpcd_data, '\0', sizeof(lttpr_dpcd_data)); memset(&down_strm_port_count, '\0', sizeof(union down_stream_port_count)); memset(&edp_config_cap, '\0', @@ -2785,6 +3231,52 @@ static bool retrieve_link_cap(struct dc_link *link) return false; } + if (ext_timeout_support) { + + status = core_link_read_dpcd( + link, + DP_LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV, + lttpr_dpcd_data, + sizeof(lttpr_dpcd_data)); + + link->dpcd_caps.lttpr_caps.revision.raw = + lttpr_dpcd_data[DP_LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV - + DP_LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV]; + + link->dpcd_caps.lttpr_caps.max_link_rate = + lttpr_dpcd_data[DP_MAX_LINK_RATE_PHY_REPEATER - + DP_LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV]; + + link->dpcd_caps.lttpr_caps.phy_repeater_cnt = + lttpr_dpcd_data[DP_PHY_REPEATER_CNT - + DP_LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV]; + + link->dpcd_caps.lttpr_caps.max_lane_count = + lttpr_dpcd_data[DP_MAX_LANE_COUNT_PHY_REPEATER - + DP_LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV]; + + link->dpcd_caps.lttpr_caps.mode = + lttpr_dpcd_data[DP_PHY_REPEATER_MODE - + DP_LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV]; + + link->dpcd_caps.lttpr_caps.max_ext_timeout = + lttpr_dpcd_data[DP_PHY_REPEATER_EXTENDED_WAIT_TIMEOUT - + DP_LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV]; + + if (link->dpcd_caps.lttpr_caps.phy_repeater_cnt > 0 && + link->dpcd_caps.lttpr_caps.max_lane_count > 0 && + link->dpcd_caps.lttpr_caps.max_lane_count <= 4 && + link->dpcd_caps.lttpr_caps.revision.raw >= 0x14) { + link->is_lttpr_mode_transparent = false; + } else { + /*No lttpr reset timeout to its default value*/ + link->is_lttpr_mode_transparent = true; + dc_link_aux_configure_timeout(link->ddc, LINK_AUX_DEFAULT_TIMEOUT_PERIOD); + } + + CONN_DATA_DETECT(link, lttpr_dpcd_data, sizeof(lttpr_dpcd_data), "LTTPR Caps: "); + } + { union training_aux_rd_interval aux_rd_interval; @@ -2792,7 +3284,7 @@ static bool retrieve_link_cap(struct dc_link *link) dpcd_data[DP_TRAINING_AUX_RD_INTERVAL]; link->dpcd_caps.ext_receiver_cap_field_present = - aux_rd_interval.bits.EXT_RECEIVER_CAP_FIELD_PRESENT == 1 ? true:false; + aux_rd_interval.bits.EXT_RECEIVER_CAP_FIELD_PRESENT == 1; if (aux_rd_interval.bits.EXT_RECEIVER_CAP_FIELD_PRESENT == 1) { uint8_t ext_cap_data[16]; @@ -2909,6 +3401,17 @@ static bool retrieve_link_cap(struct dc_link *link) sink_id.ieee_device_id, sizeof(sink_id.ieee_device_id)); + /* Quirk Apple MBP 2017 15" Retina panel: Wrong DP_MAX_LINK_RATE */ + { + uint8_t str_mbp_2017[] = { 101, 68, 21, 101, 98, 97 }; + + if ((link->dpcd_caps.sink_dev_id == 0x0010fa) && + !memcmp(link->dpcd_caps.sink_dev_id_str, str_mbp_2017, + sizeof(str_mbp_2017))) { + link->reported_link_cap.link_rate = 0x0c; + } + } + core_link_read_dpcd( link, DP_SINK_HW_REVISION_START, @@ -2923,7 +3426,6 @@ static bool retrieve_link_cap(struct dc_link *link) dp_hw_fw_revision.ieee_fw_rev, sizeof(dp_hw_fw_revision.ieee_fw_rev)); -#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT memset(&link->dpcd_caps.dsc_caps, '\0', sizeof(link->dpcd_caps.dsc_caps)); memset(&link->dpcd_caps.fec_cap, '\0', sizeof(link->dpcd_caps.fec_cap)); @@ -2945,7 +3447,6 @@ static bool retrieve_link_cap(struct dc_link *link) link->dpcd_caps.dsc_caps.dsc_ext_caps.raw, sizeof(link->dpcd_caps.dsc_caps.dsc_ext_caps.raw)); } -#endif /* Connectivity log: detection */ CONN_DATA_DETECT(link, dpcd_data, sizeof(dpcd_data), "Rx Caps: "); @@ -2953,6 +3454,68 @@ static bool retrieve_link_cap(struct dc_link *link) return true; } +bool dp_overwrite_extended_receiver_cap(struct dc_link *link) +{ + uint8_t dpcd_data[16]; + uint32_t read_dpcd_retry_cnt = 3; + enum dc_status status = DC_ERROR_UNEXPECTED; + union dp_downstream_port_present ds_port = { 0 }; + union down_stream_port_count down_strm_port_count; + union edp_configuration_cap edp_config_cap; + + int i; + + for (i = 0; i < read_dpcd_retry_cnt; i++) { + status = core_link_read_dpcd( + link, + DP_DPCD_REV, + dpcd_data, + sizeof(dpcd_data)); + if (status == DC_OK) + break; + } + + link->dpcd_caps.dpcd_rev.raw = + dpcd_data[DP_DPCD_REV - DP_DPCD_REV]; + + if (dpcd_data[DP_MAX_LANE_COUNT - DP_DPCD_REV] == 0) + return false; + + ds_port.byte = dpcd_data[DP_DOWNSTREAMPORT_PRESENT - + DP_DPCD_REV]; + + get_active_converter_info(ds_port.byte, link); + + down_strm_port_count.raw = dpcd_data[DP_DOWN_STREAM_PORT_COUNT - + DP_DPCD_REV]; + + link->dpcd_caps.allow_invalid_MSA_timing_param = + down_strm_port_count.bits.IGNORE_MSA_TIMING_PARAM; + + link->dpcd_caps.max_ln_count.raw = dpcd_data[ + DP_MAX_LANE_COUNT - DP_DPCD_REV]; + + link->dpcd_caps.max_down_spread.raw = dpcd_data[ + DP_MAX_DOWNSPREAD - DP_DPCD_REV]; + + link->reported_link_cap.lane_count = + link->dpcd_caps.max_ln_count.bits.MAX_LANE_COUNT; + link->reported_link_cap.link_rate = dpcd_data[ + DP_MAX_LINK_RATE - DP_DPCD_REV]; + link->reported_link_cap.link_spread = + link->dpcd_caps.max_down_spread.bits.MAX_DOWN_SPREAD ? + LINK_SPREAD_05_DOWNSPREAD_30KHZ : LINK_SPREAD_DISABLED; + + edp_config_cap.raw = dpcd_data[ + DP_EDP_CONFIGURATION_CAP - DP_DPCD_REV]; + link->dpcd_caps.panel_mode_edp = + edp_config_cap.bits.ALT_SCRAMBLER_RESET; + link->dpcd_caps.dpcd_display_control_capable = + edp_config_cap.bits.DPCD_DISPLAY_CONTROL_CAPABLE; + + return true; +} + bool detect_dp_sink_caps(struct dc_link *link) { return retrieve_link_cap(link); @@ -3067,21 +3630,20 @@ static bool is_dp_phy_pattern(enum dp_test_pattern test_pattern) static void set_crtc_test_pattern(struct dc_link *link, struct pipe_ctx *pipe_ctx, - enum dp_test_pattern test_pattern) + enum dp_test_pattern test_pattern, + enum dp_test_pattern_color_space test_pattern_color_space) { enum controller_dp_test_pattern controller_test_pattern; enum dc_color_depth color_depth = pipe_ctx-> stream->timing.display_color_depth; struct bit_depth_reduction_params params; struct output_pixel_processor *opp = pipe_ctx->stream_res.opp; -#if defined(CONFIG_DRM_AMD_DC_DCN2_0) int width = pipe_ctx->stream->timing.h_addressable + pipe_ctx->stream->timing.h_border_left + pipe_ctx->stream->timing.h_border_right; int height = pipe_ctx->stream->timing.v_addressable + pipe_ctx->stream->timing.v_border_bottom + pipe_ctx->stream->timing.v_border_top; -#endif memset(¶ms, 0, sizeof(params)); @@ -3125,10 +3687,29 @@ static void set_crtc_test_pattern(struct dc_link *link, if (pipe_ctx->stream_res.tg->funcs->set_test_pattern) pipe_ctx->stream_res.tg->funcs->set_test_pattern(pipe_ctx->stream_res.tg, controller_test_pattern, color_depth); -#if defined(CONFIG_DRM_AMD_DC_DCN2_0) else if (opp->funcs->opp_set_disp_pattern_generator) { struct pipe_ctx *odm_pipe; + enum controller_dp_color_space controller_color_space; int opp_cnt = 1; + int count; + + switch (test_pattern_color_space) { + case DP_TEST_PATTERN_COLOR_SPACE_RGB: + controller_color_space = CONTROLLER_DP_COLOR_SPACE_RGB; + break; + case DP_TEST_PATTERN_COLOR_SPACE_YCBCR601: + controller_color_space = CONTROLLER_DP_COLOR_SPACE_YCBCR601; + break; + case DP_TEST_PATTERN_COLOR_SPACE_YCBCR709: + controller_color_space = CONTROLLER_DP_COLOR_SPACE_YCBCR709; + break; + case DP_TEST_PATTERN_COLOR_SPACE_UNDEFINED: + default: + controller_color_space = CONTROLLER_DP_COLOR_SPACE_UDEFINED; + DC_LOG_ERROR("%s: Color space must be defined for test pattern", __func__); + ASSERT(0); + break; + } for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) opp_cnt++; @@ -3141,6 +3722,7 @@ static void set_crtc_test_pattern(struct dc_link *link, odm_opp->funcs->opp_program_bit_depth_reduction(odm_opp, ¶ms); odm_opp->funcs->opp_set_disp_pattern_generator(odm_opp, controller_test_pattern, + controller_color_space, color_depth, NULL, width, @@ -3148,12 +3730,18 @@ static void set_crtc_test_pattern(struct dc_link *link, } opp->funcs->opp_set_disp_pattern_generator(opp, controller_test_pattern, + controller_color_space, color_depth, NULL, width, height); + /* wait for dpg to blank pixel data with test pattern */ + for (count = 0; count < 1000; count++) { + if (opp->funcs->dpg_is_blanked(opp)) + break; + udelay(100); + } } -#endif } break; case DP_TEST_PATTERN_VIDEO_MODE: @@ -3166,7 +3754,6 @@ static void set_crtc_test_pattern(struct dc_link *link, pipe_ctx->stream_res.tg->funcs->set_test_pattern(pipe_ctx->stream_res.tg, CONTROLLER_DP_TEST_PATTERN_VIDEOMODE, color_depth); -#if defined(CONFIG_DRM_AMD_DC_DCN2_0) else if (opp->funcs->opp_set_disp_pattern_generator) { struct pipe_ctx *odm_pipe; int opp_cnt = 1; @@ -3181,6 +3768,7 @@ static void set_crtc_test_pattern(struct dc_link *link, odm_opp->funcs->opp_program_bit_depth_reduction(odm_opp, ¶ms); odm_opp->funcs->opp_set_disp_pattern_generator(odm_opp, CONTROLLER_DP_TEST_PATTERN_VIDEOMODE, + CONTROLLER_DP_COLOR_SPACE_UDEFINED, color_depth, NULL, width, @@ -3188,12 +3776,12 @@ static void set_crtc_test_pattern(struct dc_link *link, } opp->funcs->opp_set_disp_pattern_generator(opp, CONTROLLER_DP_TEST_PATTERN_VIDEOMODE, + CONTROLLER_DP_COLOR_SPACE_UDEFINED, color_depth, NULL, width, height); } -#endif } break; @@ -3205,6 +3793,7 @@ static void set_crtc_test_pattern(struct dc_link *link, bool dc_link_dp_set_test_pattern( struct dc_link *link, enum dp_test_pattern test_pattern, + enum dp_test_pattern_color_space test_pattern_color_space, const struct link_training_settings *p_link_settings, const unsigned char *p_custom_pattern, unsigned int cust_pattern_size) @@ -3233,7 +3822,7 @@ bool dc_link_dp_set_test_pattern( if (link->test_pattern_enabled && test_pattern == DP_TEST_PATTERN_VIDEO_MODE) { /* Set CRTC Test Pattern */ - set_crtc_test_pattern(link, pipe_ctx, test_pattern); + set_crtc_test_pattern(link, pipe_ctx, test_pattern, test_pattern_color_space); dp_set_hw_test_pattern(link, test_pattern, (uint8_t *)p_custom_pattern, (uint32_t)cust_pattern_size); @@ -3256,8 +3845,8 @@ bool dc_link_dp_set_test_pattern( if (is_dp_phy_pattern(test_pattern)) { /* Set DPCD Lane Settings before running test pattern */ if (p_link_settings != NULL) { - dp_set_hw_lane_settings(link, p_link_settings); - dpcd_set_lane_settings(link, p_link_settings); + dp_set_hw_lane_settings(link, p_link_settings, DPRX); + dpcd_set_lane_settings(link, p_link_settings, DPRX); } /* Blank stream if running test pattern */ @@ -3347,8 +3936,38 @@ bool dc_link_dp_set_test_pattern( sizeof(training_pattern)); } } else { - /* CRTC Patterns */ - set_crtc_test_pattern(link, pipe_ctx, test_pattern); + enum dc_color_space color_space = COLOR_SPACE_UNKNOWN; + + switch (test_pattern_color_space) { + case DP_TEST_PATTERN_COLOR_SPACE_RGB: + color_space = COLOR_SPACE_SRGB; + if (test_pattern == DP_TEST_PATTERN_COLOR_SQUARES_CEA) + color_space = COLOR_SPACE_SRGB_LIMITED; + break; + + case DP_TEST_PATTERN_COLOR_SPACE_YCBCR601: + color_space = COLOR_SPACE_YCBCR601; + if (test_pattern == DP_TEST_PATTERN_COLOR_SQUARES_CEA) + color_space = COLOR_SPACE_YCBCR601_LIMITED; + break; + case DP_TEST_PATTERN_COLOR_SPACE_YCBCR709: + color_space = COLOR_SPACE_YCBCR709; + if (test_pattern == DP_TEST_PATTERN_COLOR_SQUARES_CEA) + color_space = COLOR_SPACE_YCBCR709_LIMITED; + break; + default: + break; + } + /* update MSA to requested color space */ + pipe_ctx->stream_res.stream_enc->funcs->dp_set_stream_attribute(pipe_ctx->stream_res.stream_enc, + &pipe_ctx->stream->timing, + color_space, + pipe_ctx->stream->use_vsc_sdp_for_colorimetry, + link->dpcd_caps.dprx_feature.bits.SST_SPLIT_SDP_CAP); + + /* CRTC Patterns */ + set_crtc_test_pattern(link, pipe_ctx, test_pattern, test_pattern_color_space); + /* Set Test Pattern state */ link->test_pattern_enabled = true; } @@ -3468,7 +4087,6 @@ enum dp_panel_mode dp_get_panel_mode(struct dc_link *link) return DP_PANEL_MODE_DEFAULT; } -#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT void dp_set_fec_ready(struct dc_link *link, bool ready) { /* FEC has to be "set ready" before the link training. @@ -3538,5 +4156,4 @@ void dp_set_fec_enable(struct dc_link *link, bool enable) } } } -#endif |