diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn21/dcn21_link_encoder.c')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn21/dcn21_link_encoder.c | 470 |
1 files changed, 470 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_link_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_link_encoder.c new file mode 100644 index 000000000000..e8a504ca5890 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_link_encoder.c @@ -0,0 +1,470 @@ +/* + * Copyright 2012-15 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 "reg_helper.h" + +#include <linux/delay.h> +#include "core_types.h" +#include "link_encoder.h" +#include "dcn21_link_encoder.h" +#include "stream_encoder.h" + +#include "i2caux_interface.h" +#include "dc_bios_types.h" + +#include "gpio_service_interface.h" + +#define CTX \ + enc10->base.ctx +#define DC_LOGGER \ + enc10->base.ctx->logger + +#define REG(reg)\ + (enc10->link_regs->reg) + +#undef FN +#define FN(reg_name, field_name) \ + enc10->link_shift->field_name, enc10->link_mask->field_name + +#define IND_REG(index) \ + (enc10->link_regs->index) + +static struct mpll_cfg dcn21_mpll_cfg_ref[] = { + // RBR + { + .hdmimode_enable = 0, + .ref_range = 1, + .ref_clk_mpllb_div = 1, + .mpllb_ssc_en = 1, + .mpllb_div5_clk_en = 1, + .mpllb_multiplier = 238, + .mpllb_fracn_en = 0, + .mpllb_fracn_quot = 0, + .mpllb_fracn_rem = 0, + .mpllb_fracn_den = 1, + .mpllb_ssc_up_spread = 0, + .mpllb_ssc_peak = 44237, + .mpllb_ssc_stepsize = 59454, + .mpllb_div_clk_en = 0, + .mpllb_div_multiplier = 0, + .mpllb_hdmi_div = 0, + .mpllb_tx_clk_div = 2, + .tx_vboost_lvl = 5, + .mpllb_pmix_en = 1, + .mpllb_word_div2_en = 0, + .mpllb_ana_v2i = 2, + .mpllb_ana_freq_vco = 2, + .mpllb_ana_cp_int = 9, + .mpllb_ana_cp_prop = 15, + .hdmi_pixel_clk_div = 0, + }, + // HBR + { + .hdmimode_enable = 0, + .ref_range = 1, + .ref_clk_mpllb_div = 1, + .mpllb_ssc_en = 1, + .mpllb_div5_clk_en = 1, + .mpllb_multiplier = 192, + .mpllb_fracn_en = 1, + .mpllb_fracn_quot = 32768, + .mpllb_fracn_rem = 0, + .mpllb_fracn_den = 1, + .mpllb_ssc_up_spread = 0, + .mpllb_ssc_peak = 36864, + .mpllb_ssc_stepsize = 49545, + .mpllb_div_clk_en = 0, + .mpllb_div_multiplier = 0, + .mpllb_hdmi_div = 0, + .mpllb_tx_clk_div = 1, + .tx_vboost_lvl = 5, + .mpllb_pmix_en = 1, + .mpllb_word_div2_en = 0, + .mpllb_ana_v2i = 2, + .mpllb_ana_freq_vco = 3, + .mpllb_ana_cp_int = 9, + .mpllb_ana_cp_prop = 15, + .hdmi_pixel_clk_div = 0, + }, + //HBR2 + { + .hdmimode_enable = 0, + .ref_range = 1, + .ref_clk_mpllb_div = 1, + .mpllb_ssc_en = 1, + .mpllb_div5_clk_en = 1, + .mpllb_multiplier = 192, + .mpllb_fracn_en = 1, + .mpllb_fracn_quot = 32768, + .mpllb_fracn_rem = 0, + .mpllb_fracn_den = 1, + .mpllb_ssc_up_spread = 0, + .mpllb_ssc_peak = 36864, + .mpllb_ssc_stepsize = 49545, + .mpllb_div_clk_en = 0, + .mpllb_div_multiplier = 0, + .mpllb_hdmi_div = 0, + .mpllb_tx_clk_div = 0, + .tx_vboost_lvl = 5, + .mpllb_pmix_en = 1, + .mpllb_word_div2_en = 0, + .mpllb_ana_v2i = 2, + .mpllb_ana_freq_vco = 3, + .mpllb_ana_cp_int = 9, + .mpllb_ana_cp_prop = 15, + .hdmi_pixel_clk_div = 0, + }, + //HBR3 + { + .hdmimode_enable = 0, + .ref_range = 1, + .ref_clk_mpllb_div = 1, + .mpllb_ssc_en = 1, + .mpllb_div5_clk_en = 1, + .mpllb_multiplier = 304, + .mpllb_fracn_en = 1, + .mpllb_fracn_quot = 49152, + .mpllb_fracn_rem = 0, + .mpllb_fracn_den = 1, + .mpllb_ssc_up_spread = 0, + .mpllb_ssc_peak = 55296, + .mpllb_ssc_stepsize = 74318, + .mpllb_div_clk_en = 0, + .mpllb_div_multiplier = 0, + .mpllb_hdmi_div = 0, + .mpllb_tx_clk_div = 0, + .tx_vboost_lvl = 5, + .mpllb_pmix_en = 1, + .mpllb_word_div2_en = 0, + .mpllb_ana_v2i = 2, + .mpllb_ana_freq_vco = 1, + .mpllb_ana_cp_int = 7, + .mpllb_ana_cp_prop = 16, + .hdmi_pixel_clk_div = 0, + }, +}; + + +static bool update_cfg_data( + struct dcn10_link_encoder *enc10, + const struct dc_link_settings *link_settings, + struct dpcssys_phy_seq_cfg *cfg) +{ + int i; + + cfg->load_sram_fw = false; + cfg->use_calibration_setting = true; + + //TODO: need to implement a proper lane mapping for Renoir. + for (i = 0; i < 4; i++) + cfg->lane_en[i] = true; + + switch (link_settings->link_rate) { + case LINK_RATE_LOW: + cfg->mpll_cfg = dcn21_mpll_cfg_ref[0]; + break; + case LINK_RATE_HIGH: + cfg->mpll_cfg = dcn21_mpll_cfg_ref[1]; + break; + case LINK_RATE_HIGH2: + cfg->mpll_cfg = dcn21_mpll_cfg_ref[2]; + break; + case LINK_RATE_HIGH3: + cfg->mpll_cfg = dcn21_mpll_cfg_ref[3]; + break; + default: + DC_LOG_ERROR("%s: No supported link rate found %X!\n", + __func__, link_settings->link_rate); + return false; + } + + return true; +} + +void dcn21_link_encoder_get_max_link_cap(struct link_encoder *enc, + struct dc_link_settings *link_settings) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + uint32_t value; + + REG_GET(RDPCSTX_PHY_CNTL6, RDPCS_PHY_DPALT_DP4, &value); + + if (!value && link_settings->lane_count > LANE_COUNT_TWO) + link_settings->lane_count = LANE_COUNT_TWO; +} + +bool dcn21_link_encoder_is_in_alt_mode(struct link_encoder *enc) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + uint32_t value; + + REG_GET(RDPCSTX_PHY_CNTL6, RDPCS_PHY_DPALT_DISABLE, &value); + + // if value == 1 alt mode is disabled, otherwise it is enabled + return !value; +} + +bool dcn21_link_encoder_acquire_phy(struct link_encoder *enc) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + int value; + + if (enc->features.flags.bits.DP_IS_USB_C) { + REG_GET(RDPCSTX_PHY_CNTL6, + RDPCS_PHY_DPALT_DISABLE, &value); + + if (value == 1) { + ASSERT(0); + return false; + } + REG_UPDATE(RDPCSTX_PHY_CNTL6, + RDPCS_PHY_DPALT_DISABLE_ACK, 0); + + udelay(40); + + REG_GET(RDPCSTX_PHY_CNTL6, + RDPCS_PHY_DPALT_DISABLE, &value); + if (value == 1) { + ASSERT(0); + REG_UPDATE(RDPCSTX_PHY_CNTL6, + RDPCS_PHY_DPALT_DISABLE_ACK, 1); + return false; + } + } + + REG_UPDATE(RDPCSTX_PHY_CNTL6, RDPCS_PHY_DP_REF_CLK_EN, 1); + + return true; +} + + + +static void dcn21_link_encoder_release_phy(struct link_encoder *enc) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + + if (enc->features.flags.bits.DP_IS_USB_C) { + REG_UPDATE(RDPCSTX_PHY_CNTL6, + RDPCS_PHY_DPALT_DISABLE_ACK, 1); + } + + REG_UPDATE(RDPCSTX_PHY_CNTL6, RDPCS_PHY_DP_REF_CLK_EN, 0); + +} + +void dcn21_link_encoder_enable_dp_output( + struct link_encoder *enc, + const struct dc_link_settings *link_settings, + enum clock_source_id clock_source) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + struct dcn21_link_encoder *enc21 = (struct dcn21_link_encoder *) enc10; + struct dpcssys_phy_seq_cfg *cfg = &enc21->phy_seq_cfg; + + if (!dcn21_link_encoder_acquire_phy(enc)) + return; + + if (!enc->ctx->dc->debug.avoid_vbios_exec_table) { + dcn10_link_encoder_enable_dp_output(enc, link_settings, clock_source); + return; + } + + if (!update_cfg_data(enc10, link_settings, cfg)) + return; + + enc1_configure_encoder(enc10, link_settings); + + dcn10_link_encoder_setup(enc, SIGNAL_TYPE_DISPLAY_PORT); + +} + +void dcn21_link_encoder_enable_dp_mst_output( + struct link_encoder *enc, + const struct dc_link_settings *link_settings, + enum clock_source_id clock_source) +{ + if (!dcn21_link_encoder_acquire_phy(enc)) + return; + + dcn10_link_encoder_enable_dp_mst_output(enc, link_settings, clock_source); +} + +void dcn21_link_encoder_disable_output( + struct link_encoder *enc, + enum signal_type signal) +{ + dcn10_link_encoder_disable_output(enc, signal); + + if (dc_is_dp_signal(signal)) + dcn21_link_encoder_release_phy(enc); +} + + +static const struct link_encoder_funcs dcn21_link_enc_funcs = { +#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT + .read_state = link_enc2_read_state, +#endif + .validate_output_with_stream = + dcn10_link_encoder_validate_output_with_stream, + .hw_init = enc2_hw_init, + .setup = dcn10_link_encoder_setup, + .enable_tmds_output = dcn10_link_encoder_enable_tmds_output, + .enable_dp_output = dcn21_link_encoder_enable_dp_output, + .enable_dp_mst_output = dcn21_link_encoder_enable_dp_mst_output, + .disable_output = dcn21_link_encoder_disable_output, + .dp_set_lane_settings = dcn10_link_encoder_dp_set_lane_settings, + .dp_set_phy_pattern = dcn10_link_encoder_dp_set_phy_pattern, + .update_mst_stream_allocation_table = + dcn10_link_encoder_update_mst_stream_allocation_table, + .psr_program_dp_dphy_fast_training = + dcn10_psr_program_dp_dphy_fast_training, + .psr_program_secondary_packet = dcn10_psr_program_secondary_packet, + .connect_dig_be_to_fe = dcn10_link_encoder_connect_dig_be_to_fe, + .enable_hpd = dcn10_link_encoder_enable_hpd, + .disable_hpd = dcn10_link_encoder_disable_hpd, + .is_dig_enabled = dcn10_is_dig_enabled, + .destroy = dcn10_link_encoder_destroy, + .fec_set_enable = enc2_fec_set_enable, + .fec_set_ready = enc2_fec_set_ready, + .fec_is_active = enc2_fec_is_active, + .get_dig_frontend = dcn10_get_dig_frontend, + .is_in_alt_mode = dcn21_link_encoder_is_in_alt_mode, + .get_max_link_cap = dcn21_link_encoder_get_max_link_cap, +}; + +void dcn21_link_encoder_construct( + struct dcn21_link_encoder *enc21, + const struct encoder_init_data *init_data, + const struct encoder_feature_support *enc_features, + const struct dcn10_link_enc_registers *link_regs, + const struct dcn10_link_enc_aux_registers *aux_regs, + const struct dcn10_link_enc_hpd_registers *hpd_regs, + const struct dcn10_link_enc_shift *link_shift, + const struct dcn10_link_enc_mask *link_mask) +{ + struct bp_encoder_cap_info bp_cap_info = {0}; + const struct dc_vbios_funcs *bp_funcs = init_data->ctx->dc_bios->funcs; + enum bp_result result = BP_RESULT_OK; + struct dcn10_link_encoder *enc10 = &enc21->enc10; + + enc10->base.funcs = &dcn21_link_enc_funcs; + enc10->base.ctx = init_data->ctx; + enc10->base.id = init_data->encoder; + + enc10->base.hpd_source = init_data->hpd_source; + enc10->base.connector = init_data->connector; + + enc10->base.preferred_engine = ENGINE_ID_UNKNOWN; + + enc10->base.features = *enc_features; + + enc10->base.transmitter = init_data->transmitter; + + /* set the flag to indicate whether driver poll the I2C data pin + * while doing the DP sink detect + */ + +/* if (dal_adapter_service_is_feature_supported(as, + FEATURE_DP_SINK_DETECT_POLL_DATA_PIN)) + enc10->base.features.flags.bits. + DP_SINK_DETECT_POLL_DATA_PIN = true;*/ + + enc10->base.output_signals = + SIGNAL_TYPE_DVI_SINGLE_LINK | + SIGNAL_TYPE_DVI_DUAL_LINK | + SIGNAL_TYPE_LVDS | + SIGNAL_TYPE_DISPLAY_PORT | + SIGNAL_TYPE_DISPLAY_PORT_MST | + SIGNAL_TYPE_EDP | + SIGNAL_TYPE_HDMI_TYPE_A; + + /* For DCE 8.0 and 8.1, by design, UNIPHY is hardwired to DIG_BE. + * SW always assign DIG_FE 1:1 mapped to DIG_FE for non-MST UNIPHY. + * SW assign DIG_FE to non-MST UNIPHY first and MST last. So prefer + * DIG is per UNIPHY and used by SST DP, eDP, HDMI, DVI and LVDS. + * Prefer DIG assignment is decided by board design. + * For DCE 8.0, there are only max 6 UNIPHYs, we assume board design + * and VBIOS will filter out 7 UNIPHY for DCE 8.0. + * By this, adding DIGG should not hurt DCE 8.0. + * This will let DCE 8.1 share DCE 8.0 as much as possible + */ + + enc10->link_regs = link_regs; + enc10->aux_regs = aux_regs; + enc10->hpd_regs = hpd_regs; + enc10->link_shift = link_shift; + enc10->link_mask = link_mask; + + switch (enc10->base.transmitter) { + case TRANSMITTER_UNIPHY_A: + enc10->base.preferred_engine = ENGINE_ID_DIGA; + break; + case TRANSMITTER_UNIPHY_B: + enc10->base.preferred_engine = ENGINE_ID_DIGB; + break; + case TRANSMITTER_UNIPHY_C: + enc10->base.preferred_engine = ENGINE_ID_DIGC; + break; + case TRANSMITTER_UNIPHY_D: + enc10->base.preferred_engine = ENGINE_ID_DIGD; + break; + case TRANSMITTER_UNIPHY_E: + enc10->base.preferred_engine = ENGINE_ID_DIGE; + break; + case TRANSMITTER_UNIPHY_F: + enc10->base.preferred_engine = ENGINE_ID_DIGF; + break; + case TRANSMITTER_UNIPHY_G: + enc10->base.preferred_engine = ENGINE_ID_DIGG; + break; + default: + ASSERT_CRITICAL(false); + enc10->base.preferred_engine = ENGINE_ID_UNKNOWN; + } + + /* default to one to mirror Windows behavior */ + enc10->base.features.flags.bits.HDMI_6GB_EN = 1; + + result = bp_funcs->get_encoder_cap_info(enc10->base.ctx->dc_bios, + enc10->base.id, &bp_cap_info); + + /* Override features with DCE-specific values */ + if (result == BP_RESULT_OK) { + enc10->base.features.flags.bits.IS_HBR2_CAPABLE = + bp_cap_info.DP_HBR2_EN; + enc10->base.features.flags.bits.IS_HBR3_CAPABLE = + bp_cap_info.DP_HBR3_EN; + enc10->base.features.flags.bits.HDMI_6GB_EN = bp_cap_info.HDMI_6GB_EN; + enc10->base.features.flags.bits.DP_IS_USB_C = + bp_cap_info.DP_IS_USB_C; + } else { + DC_LOG_WARNING("%s: Failed to get encoder_cap_info from VBIOS with error code %d!\n", + __func__, + result); + } + if (enc10->base.ctx->dc->debug.hdmi20_disable) { + enc10->base.features.flags.bits.HDMI_6GB_EN = 0; + } +} |