diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_aux.c | 17 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_i2c_hw.c | 67 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_i2c_sw.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dmub_replay.c | 14 |
6 files changed, 92 insertions, 18 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c index bb4ac5042c80..673bb87d2c17 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c @@ -725,14 +725,18 @@ bool dce_aux_transfer_with_retries(struct ddc_service *ddc, for (i = 0; i < AUX_MAX_RETRIES; i++) { DC_TRACE_LEVEL_MESSAGE(DAL_TRACE_LEVEL_INFORMATION, LOG_FLAG_I2cAux_DceAux, - "dce_aux_transfer_with_retries: link_index=%u: START: retry %d of %d: address=0x%04x length=%u write=%d mot=%d", + "dce_aux_transfer_with_retries: link_index=%u: START: retry %d of %d: " + "address=0x%04x length=%u write=%d mot=%d is_i2c=%d is_dpia=%d ddc_hw_inst=%d", ddc && ddc->link ? ddc->link->link_index : UINT_MAX, i + 1, (int)AUX_MAX_RETRIES, payload->address, payload->length, (unsigned int) payload->write, - (unsigned int) payload->mot); + (unsigned int) payload->mot, + payload->i2c_over_aux, + (ddc->link->ep_type == DISPLAY_ENDPOINT_USB4_DPIA) ? true : false, + ddc->link->ddc_hw_inst); if (payload->write) dce_aux_log_payload(" write", payload->data, payload->length, 16); @@ -746,7 +750,9 @@ bool dce_aux_transfer_with_retries(struct ddc_service *ddc, DC_TRACE_LEVEL_MESSAGE(DAL_TRACE_LEVEL_INFORMATION, LOG_FLAG_I2cAux_DceAux, - "dce_aux_transfer_with_retries: link_index=%u: END: retry %d of %d: address=0x%04x length=%u write=%d mot=%d: ret=%d operation_result=%d payload->reply=%u", + "dce_aux_transfer_with_retries: link_index=%u: END: retry %d of %d: " + "address=0x%04x length=%u write=%d mot=%d: ret=%d operation_result=%d " + "payload->reply=%u is_i2c=%d is_dpia=%d ddc_hw_inst=%d", ddc && ddc->link ? ddc->link->link_index : UINT_MAX, i + 1, (int)AUX_MAX_RETRIES, @@ -756,7 +762,10 @@ bool dce_aux_transfer_with_retries(struct ddc_service *ddc, (unsigned int) payload->mot, ret, (int)operation_result, - (unsigned int) *payload->reply); + (unsigned int) *payload->reply, + payload->i2c_over_aux, + (ddc->link->ep_type == DISPLAY_ENDPOINT_USB4_DPIA) ? true : false, + ddc->link->ddc_hw_inst); if (!payload->write) dce_aux_log_payload(" read", payload->data, ret > 0 ? ret : 0, 16); diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_i2c_hw.c b/drivers/gpu/drm/amd/display/dc/dce/dce_i2c_hw.c index d28826c3ae5f..365dd2e37aea 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_i2c_hw.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_i2c_hw.c @@ -292,9 +292,35 @@ static void set_speed( FN(DC_I2C_DDC1_SPEED, DC_I2C_DDC1_THRESHOLD), 2); } +static bool acquire_engine(struct dce_i2c_hw *dce_i2c_hw) +{ + uint32_t arbitrate = 0; + + REG_GET(DC_I2C_ARBITRATION, DC_I2C_REG_RW_CNTL_STATUS, &arbitrate); + switch (arbitrate) { + case DC_I2C_STATUS__DC_I2C_STATUS_USED_BY_SW: + return true; + case DC_I2C_STATUS__DC_I2C_STATUS_USED_BY_HW: + return false; + case DC_I2C_STATUS__DC_I2C_STATUS_IDLE: + default: + break; + } + + REG_UPDATE(DC_I2C_ARBITRATION, DC_I2C_SW_USE_I2C_REG_REQ, true); + REG_GET(DC_I2C_ARBITRATION, DC_I2C_REG_RW_CNTL_STATUS, &arbitrate); + if (arbitrate != DC_I2C_STATUS__DC_I2C_STATUS_USED_BY_SW) + return false; + + return true; +} + static bool setup_engine( struct dce_i2c_hw *dce_i2c_hw) { + // Deassert soft reset to unblock I2C engine registers + REG_UPDATE(DC_I2C_CONTROL, DC_I2C_SOFT_RESET, false); + uint32_t i2c_setup_limit = I2C_SETUP_TIME_LIMIT_DCE; uint32_t reset_length = 0; @@ -309,8 +335,8 @@ static bool setup_engine( REG_UPDATE_N(SETUP, 1, FN(DC_I2C_DDC1_SETUP, DC_I2C_DDC1_CLK_EN), 1); - /* we have checked I2c not used by DMCU, set SW use I2C REQ to 1 to indicate SW using it*/ - REG_UPDATE(DC_I2C_ARBITRATION, DC_I2C_SW_USE_I2C_REG_REQ, 1); + if (!acquire_engine(dce_i2c_hw)) + return false; /*set SW requested I2c speed to default, if API calls in it will be override later*/ set_speed(dce_i2c_hw, dce_i2c_hw->ctx->dc->caps.i2c_speed_in_khz); @@ -319,9 +345,8 @@ static bool setup_engine( i2c_setup_limit = dce_i2c_hw->setup_limit; /* Program pin select */ - REG_UPDATE_6(DC_I2C_CONTROL, + REG_UPDATE_5(DC_I2C_CONTROL, DC_I2C_GO, 0, - DC_I2C_SOFT_RESET, 0, DC_I2C_SEND_RESET, 0, DC_I2C_SW_STATUS_RESET, 1, DC_I2C_TRANSACTION_COUNT, 0, @@ -351,6 +376,32 @@ static bool setup_engine( return true; } +/** + * cntl_stuck_hw_workaround - Workaround for I2C engine stuck state + * @dce_i2c_hw: Pointer to dce_i2c_hw structure + * + * If we boot without an HDMI display, the I2C engine does not get initialized + * correctly. One of its symptoms is that SW_USE_I2C does not get cleared after + * acquire. After setting SW_DONE_USING_I2C on release, the engine gets + * immediately reacquired by SW, preventing DMUB from using it. + * + * This function checks the I2C arbitration status and applies a release + * workaround if necessary. + */ +static void cntl_stuck_hw_workaround(struct dce_i2c_hw *dce_i2c_hw) +{ + uint32_t arbitrate = 0; + + REG_GET(DC_I2C_ARBITRATION, DC_I2C_REG_RW_CNTL_STATUS, &arbitrate); + if (arbitrate != DC_I2C_STATUS__DC_I2C_STATUS_USED_BY_SW) + return; + + // Still acquired after release, release again as a workaround + REG_UPDATE(DC_I2C_ARBITRATION, DC_I2C_SW_DONE_USING_I2C_REG, true); + REG_GET(DC_I2C_ARBITRATION, DC_I2C_REG_RW_CNTL_STATUS, &arbitrate); + ASSERT(arbitrate != DC_I2C_STATUS__DC_I2C_STATUS_USED_BY_SW); +} + static void release_engine( struct dce_i2c_hw *dce_i2c_hw) { @@ -378,9 +429,9 @@ static void release_engine( /*for HW HDCP Ri polling failure w/a test*/ set_speed(dce_i2c_hw, dce_i2c_hw->ctx->dc->caps.i2c_speed_in_khz_hdcp); - /* Release I2C after reset, so HW or DMCU could use it */ - REG_UPDATE_2(DC_I2C_ARBITRATION, DC_I2C_SW_DONE_USING_I2C_REG, 1, - DC_I2C_SW_USE_I2C_REG_REQ, 0); + // Release I2C engine so it can be used by HW or DMCU, automatically clears SW_USE_I2C + REG_UPDATE(DC_I2C_ARBITRATION, DC_I2C_SW_DONE_USING_I2C_REG, true); + cntl_stuck_hw_workaround(dce_i2c_hw); if (dce_i2c_hw->ctx->dc->debug.enable_mem_low_power.bits.i2c) { if (dce_i2c_hw->regs->DIO_MEM_PWR_CTRL) @@ -540,7 +591,7 @@ static bool dce_i2c_hw_engine_submit_payload(struct dce_i2c_hw *dce_i2c_hw, DCE_I2C_TRANSACTION_ACTION_I2C_WRITE; - request.address = (uint8_t) ((payload->address << 1) | !payload->write); + request.address = (uint8_t) ((payload->address << 1) | (payload->write ? 0 : 1)); request.length = payload->length; request.data = payload->data; diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_i2c_sw.c b/drivers/gpu/drm/amd/display/dc/dce/dce_i2c_sw.c index e188447c8156..2d73b94c515c 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_i2c_sw.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_i2c_sw.c @@ -451,7 +451,7 @@ static bool dce_i2c_sw_engine_submit_payload(struct dce_i2c_sw *engine, DCE_I2C_TRANSACTION_ACTION_I2C_WRITE_MOT : DCE_I2C_TRANSACTION_ACTION_I2C_WRITE; - request.address = (uint8_t) ((payload->address << 1) | !payload->write); + request.address = (uint8_t) ((payload->address << 1) | (payload->write ? 0 : 1)); request.length = payload->length; request.data = payload->data; diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c index 4a9d07c31bc5..0c50fe266c8a 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c @@ -896,13 +896,13 @@ void dce110_link_encoder_construct( enc110->base.id, &bp_cap_info); /* Override features with DCE-specific values */ - if (BP_RESULT_OK == result) { + if (result == BP_RESULT_OK) { enc110->base.features.flags.bits.IS_HBR2_CAPABLE = bp_cap_info.DP_HBR2_EN; enc110->base.features.flags.bits.IS_HBR3_CAPABLE = bp_cap_info.DP_HBR3_EN; enc110->base.features.flags.bits.HDMI_6GB_EN = bp_cap_info.HDMI_6GB_EN; - } else { + } else if (result != BP_RESULT_NORECORD) { DC_LOG_WARNING("%s: Failed to get encoder_cap_info from VBIOS with error code %d!\n", __func__, result); @@ -1798,13 +1798,13 @@ void dce60_link_encoder_construct( enc110->base.id, &bp_cap_info); /* Override features with DCE-specific values */ - if (BP_RESULT_OK == result) { + if (result == BP_RESULT_OK) { enc110->base.features.flags.bits.IS_HBR2_CAPABLE = bp_cap_info.DP_HBR2_EN; enc110->base.features.flags.bits.IS_HBR3_CAPABLE = bp_cap_info.DP_HBR3_EN; enc110->base.features.flags.bits.HDMI_6GB_EN = bp_cap_info.HDMI_6GB_EN; - } else { + } else if (result != BP_RESULT_NORECORD) { DC_LOG_WARNING("%s: Failed to get encoder_cap_info from VBIOS with error code %d!\n", __func__, result); diff --git a/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c b/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c index ff3b8244ba3d..87af4fdc04a6 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c @@ -391,7 +391,7 @@ static bool dmub_psr_copy_settings(struct dmub_psr *dmub, sizeof(DP_SINK_DEVICE_STR_ID_1))) link->psr_settings.force_ffu_mode = 1; - copy_settings_data->force_ffu_mode = link->psr_settings.force_ffu_mode; + copy_settings_data->force_ffu_mode = link->psr_settings.force_ffu_mode || psr_context->os_request_force_ffu; if (((link->dpcd_caps.fec_cap.bits.FEC_CAPABLE && !link->dc->debug.disable_fec) && diff --git a/drivers/gpu/drm/amd/display/dc/dce/dmub_replay.c b/drivers/gpu/drm/amd/display/dc/dce/dmub_replay.c index fcd3d86ad517..f9542edff14b 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dmub_replay.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dmub_replay.c @@ -3,6 +3,7 @@ // Copyright 2024 Advanced Micro Devices, Inc. #include "dc.h" +#include "link_service.h" #include "dc_dmub_srv.h" #include "dmub/dmub_srv.h" #include "core_types.h" @@ -168,6 +169,7 @@ static bool dmub_replay_copy_settings(struct dmub_replay *dmub, copy_settings_data->max_deviation_line = link->dpcd_caps.pr_info.max_deviation_line; copy_settings_data->smu_optimizations_en = link->replay_settings.replay_smu_opt_enable; copy_settings_data->replay_timing_sync_supported = link->replay_settings.config.replay_timing_sync_supported; + copy_settings_data->replay_support_fast_resync_in_ultra_sleep_mode = link->replay_settings.config.replay_support_fast_resync_in_ultra_sleep_mode; copy_settings_data->debug.bitfields.enable_ips_visual_confirm = dc->dc->debug.enable_ips_visual_confirm; @@ -189,6 +191,18 @@ static bool dmub_replay_copy_settings(struct dmub_replay *dmub, else copy_settings_data->flags.bitfields.force_wakeup_by_tps3 = 0; + copy_settings_data->flags.bitfields.alpm_mode = (enum dmub_alpm_mode)link->replay_settings.config.alpm_mode; + if (link->replay_settings.config.alpm_mode == DC_ALPM_AUXLESS) { + copy_settings_data->auxless_alpm_data.lfps_setup_ns = dc->dc->debug.auxless_alpm_lfps_setup_ns; + copy_settings_data->auxless_alpm_data.lfps_period_ns = dc->dc->debug.auxless_alpm_lfps_period_ns; + copy_settings_data->auxless_alpm_data.lfps_silence_ns = dc->dc->debug.auxless_alpm_lfps_silence_ns; + copy_settings_data->auxless_alpm_data.lfps_t1_t2_override_us = + dc->dc->debug.auxless_alpm_lfps_t1t2_us; + copy_settings_data->auxless_alpm_data.lfps_t1_t2_offset_us = + dc->dc->debug.auxless_alpm_lfps_t1t2_offset_us; + copy_settings_data->auxless_alpm_data.lttpr_count = link->dc->link_srv->dp_get_lttpr_count(link); + } + dc_wake_and_execute_dmub_cmd(dc, &cmd, DM_DMUB_WAIT_TYPE_WAIT); return true; |