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 | 70 |
1 files changed, 46 insertions, 24 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 2fc12239b22c..c1391bfb7a9b 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 @@ -126,9 +126,7 @@ static void dpcd_set_training_pattern( static enum dc_dp_training_pattern decide_cr_training_pattern( const struct dc_link_settings *link_settings) { - enum dc_dp_training_pattern pattern = DP_TRAINING_PATTERN_SEQUENCE_1; - - return pattern; + return DP_TRAINING_PATTERN_SEQUENCE_1; } static enum dc_dp_training_pattern decide_eq_training_pattern(struct dc_link *link, @@ -892,13 +890,13 @@ static uint32_t translate_training_aux_read_interval(uint32_t dpcd_aux_read_inte switch (dpcd_aux_read_interval) { case 0x01: - aux_rd_interval_us = 400; + aux_rd_interval_us = 4000; break; case 0x02: - aux_rd_interval_us = 4000; + aux_rd_interval_us = 8000; break; case 0x03: - aux_rd_interval_us = 8000; + aux_rd_interval_us = 12000; break; case 0x04: aux_rd_interval_us = 16000; @@ -2399,6 +2397,9 @@ static bool decide_dp_link_settings(struct dc_link *link, struct dc_link_setting initial_link_setting; uint32_t link_bw; + if (req_bw > dc_link_bandwidth_kbps(link, &link->verified_link_cap)) + return false; + /* search for the minimum link setting that: * 1. is supported according to the link training result * 2. could support the b/w requested by the timing @@ -3045,14 +3046,14 @@ bool dc_link_handle_hpd_rx_irq(struct dc_link *link, union hpd_irq_data *out_hpd 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->dpms_off && - pipe_ctx->stream->link == link) + pipe_ctx->stream->link == link && !pipe_ctx->prev_odm_pipe) core_link_disable_stream(pipe_ctx); } 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->dpms_off && - pipe_ctx->stream->link == link) + pipe_ctx->stream->link == link && !pipe_ctx->prev_odm_pipe) core_link_enable_stream(link->dc->current_state, pipe_ctx); } @@ -3707,7 +3708,7 @@ bool detect_dp_sink_caps(struct dc_link *link) /* TODO save sink caps in link->sink */ } -enum dc_link_rate linkRateInKHzToLinkRateMultiplier(uint32_t link_rate_in_khz) +static enum dc_link_rate linkRateInKHzToLinkRateMultiplier(uint32_t link_rate_in_khz) { enum dc_link_rate link_rate; // LinkRate is normally stored as a multiplier of 0.27 Gbps per lane. Do the translation. @@ -3992,7 +3993,7 @@ bool dc_link_dp_set_test_pattern( unsigned int cust_pattern_size) { struct pipe_ctx *pipes = link->dc->current_state->res_ctx.pipe_ctx; - struct pipe_ctx *pipe_ctx = &pipes[0]; + struct pipe_ctx *pipe_ctx = NULL; unsigned int lane; unsigned int i; unsigned char link_qual_pattern[LANE_COUNT_DP_MAX] = {0}; @@ -4002,12 +4003,18 @@ bool dc_link_dp_set_test_pattern( memset(&training_pattern, 0, sizeof(training_pattern)); for (i = 0; i < MAX_PIPES; i++) { + if (pipes[i].stream == NULL) + continue; + if (pipes[i].stream->link == link && !pipes[i].top_pipe && !pipes[i].prev_odm_pipe) { pipe_ctx = &pipes[i]; break; } } + if (pipe_ctx == NULL) + return false; + /* Reset CRTC Test Pattern if it is currently running and request is VideoMode */ if (link->test_pattern_enabled && test_pattern == DP_TEST_PATTERN_VIDEO_MODE) { @@ -4339,7 +4346,7 @@ void dp_set_fec_ready(struct dc_link *link, bool ready) struct link_encoder *link_enc = link->link_enc; uint8_t fec_config = 0; - if (!dc_link_is_fec_supported(link) || link->dc->debug.disable_fec) + if (!dc_link_should_enable_fec(link)) return; if (link_enc->funcs->fec_set_ready && @@ -4374,7 +4381,7 @@ void dp_set_fec_enable(struct dc_link *link, bool enable) { struct link_encoder *link_enc = link->link_enc; - if (!dc_link_is_fec_supported(link) || link->dc->debug.disable_fec) + if (!dc_link_should_enable_fec(link)) return; if (link_enc->funcs->fec_set_enable && @@ -4400,24 +4407,39 @@ void dp_set_fec_enable(struct dc_link *link, bool enable) void dpcd_set_source_specific_data(struct dc_link *link) { if (!link->dc->vendor_signature.is_valid) { - enum dc_status result_write_min_hblank = DC_NOT_SUPPORTED; - struct dpcd_amd_signature amd_signature; - amd_signature.AMD_IEEE_TxSignature_byte1 = 0x0; - amd_signature.AMD_IEEE_TxSignature_byte2 = 0x0; - amd_signature.AMD_IEEE_TxSignature_byte3 = 0x1A; - amd_signature.device_id_byte1 = + enum dc_status __maybe_unused result_write_min_hblank = DC_NOT_SUPPORTED; + struct dpcd_amd_signature amd_signature = {0}; + struct dpcd_amd_device_id amd_device_id = {0}; + + amd_device_id.device_id_byte1 = (uint8_t)(link->ctx->asic_id.chip_id); - amd_signature.device_id_byte2 = + amd_device_id.device_id_byte2 = (uint8_t)(link->ctx->asic_id.chip_id >> 8); - memset(&amd_signature.zero, 0, 4); - amd_signature.dce_version = + amd_device_id.dce_version = (uint8_t)(link->ctx->dce_version); - amd_signature.dal_version_byte1 = 0x0; // needed? where to get? - amd_signature.dal_version_byte2 = 0x0; // needed? where to get? + amd_device_id.dal_version_byte1 = 0x0; // needed? where to get? + amd_device_id.dal_version_byte2 = 0x0; // needed? where to get? - core_link_write_dpcd(link, DP_SOURCE_OUI, + core_link_read_dpcd(link, DP_SOURCE_OUI, + (uint8_t *)(&amd_signature), + sizeof(amd_signature)); + + if (!((amd_signature.AMD_IEEE_TxSignature_byte1 == 0x0) && + (amd_signature.AMD_IEEE_TxSignature_byte2 == 0x0) && + (amd_signature.AMD_IEEE_TxSignature_byte3 == 0x1A))) { + + amd_signature.AMD_IEEE_TxSignature_byte1 = 0x0; + amd_signature.AMD_IEEE_TxSignature_byte2 = 0x0; + amd_signature.AMD_IEEE_TxSignature_byte3 = 0x1A; + + core_link_write_dpcd(link, DP_SOURCE_OUI, (uint8_t *)(&amd_signature), sizeof(amd_signature)); + } + + core_link_write_dpcd(link, DP_SOURCE_OUI+0x03, + (uint8_t *)(&amd_device_id), + sizeof(amd_device_id)); if (link->ctx->dce_version >= DCN_VERSION_2_0 && link->dc->caps.min_horizontal_blanking_period != 0) { |