diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 1188 |
1 files changed, 512 insertions, 676 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 09bdd94ca3ba..796e3d313cb9 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -277,7 +277,7 @@ static void pps_lock(struct intel_dp *intel_dp) * See vlv_power_sequencer_reset() why we need * a power domain reference here. */ - power_domain = intel_display_port_power_domain(encoder); + power_domain = intel_display_port_aux_power_domain(encoder); intel_display_power_get(dev_priv, power_domain); mutex_lock(&dev_priv->pps_mutex); @@ -293,7 +293,7 @@ static void pps_unlock(struct intel_dp *intel_dp) mutex_unlock(&dev_priv->pps_mutex); - power_domain = intel_display_port_power_domain(encoder); + power_domain = intel_display_port_aux_power_domain(encoder); intel_display_power_put(dev_priv, power_domain); } @@ -389,8 +389,7 @@ vlv_power_sequencer_pipe(struct intel_dp *intel_dp) * We don't have power sequencer currently. * Pick one that's not used by other ports. */ - list_for_each_entry(encoder, &dev->mode_config.encoder_list, - base.head) { + for_each_intel_encoder(dev, encoder) { struct intel_dp *tmp; if (encoder->type != INTEL_OUTPUT_EDP) @@ -517,7 +516,7 @@ void vlv_power_sequencer_reset(struct drm_i915_private *dev_priv) struct drm_device *dev = dev_priv->dev; struct intel_encoder *encoder; - if (WARN_ON(!IS_VALLEYVIEW(dev))) + if (WARN_ON(!IS_VALLEYVIEW(dev) && !IS_CHERRYVIEW(dev))) return; /* @@ -530,7 +529,7 @@ void vlv_power_sequencer_reset(struct drm_i915_private *dev_priv) * should use them always. */ - list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { + for_each_intel_encoder(dev, encoder) { struct intel_dp *intel_dp; if (encoder->type != INTEL_OUTPUT_EDP) @@ -541,7 +540,8 @@ void vlv_power_sequencer_reset(struct drm_i915_private *dev_priv) } } -static u32 _pp_ctrl_reg(struct intel_dp *intel_dp) +static i915_reg_t +_pp_ctrl_reg(struct intel_dp *intel_dp) { struct drm_device *dev = intel_dp_to_dev(intel_dp); @@ -553,7 +553,8 @@ static u32 _pp_ctrl_reg(struct intel_dp *intel_dp) return VLV_PIPE_PP_CONTROL(vlv_power_sequencer_pipe(intel_dp)); } -static u32 _pp_stat_reg(struct intel_dp *intel_dp) +static i915_reg_t +_pp_stat_reg(struct intel_dp *intel_dp) { struct drm_device *dev = intel_dp_to_dev(intel_dp); @@ -580,9 +581,9 @@ static int edp_notify_handler(struct notifier_block *this, unsigned long code, pps_lock(intel_dp); - if (IS_VALLEYVIEW(dev)) { + if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { enum pipe pipe = vlv_power_sequencer_pipe(intel_dp); - u32 pp_ctrl_reg, pp_div_reg; + i915_reg_t pp_ctrl_reg, pp_div_reg; u32 pp_div; pp_ctrl_reg = VLV_PIPE_PP_CONTROL(pipe); @@ -608,7 +609,7 @@ static bool edp_have_panel_power(struct intel_dp *intel_dp) lockdep_assert_held(&dev_priv->pps_mutex); - if (IS_VALLEYVIEW(dev) && + if ((IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) && intel_dp->pps_pipe == INVALID_PIPE) return false; @@ -622,7 +623,7 @@ static bool edp_have_panel_vdd(struct intel_dp *intel_dp) lockdep_assert_held(&dev_priv->pps_mutex); - if (IS_VALLEYVIEW(dev) && + if ((IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) && intel_dp->pps_pipe == INVALID_PIPE) return false; @@ -652,7 +653,7 @@ intel_dp_aux_wait_done(struct intel_dp *intel_dp, bool has_aux_irq) struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); struct drm_device *dev = intel_dig_port->base.base.dev; struct drm_i915_private *dev_priv = dev->dev_private; - uint32_t ch_ctl = intel_dp->aux_ch_ctl_reg; + i915_reg_t ch_ctl = intel_dp->aux_ch_ctl_reg; uint32_t status; bool done; @@ -679,7 +680,7 @@ static uint32_t i9xx_get_aux_clock_divider(struct intel_dp *intel_dp, int index) * The clock divider is based off the hrawclk, and would like to run at * 2MHz. So, take the hrawclk value and divide by 2 and use that */ - return index ? 0 : intel_hrawclk(dev) / 2; + return index ? 0 : DIV_ROUND_CLOSEST(intel_hrawclk(dev), 2); } static uint32_t ilk_get_aux_clock_divider(struct intel_dp *intel_dp, int index) @@ -692,10 +693,10 @@ static uint32_t ilk_get_aux_clock_divider(struct intel_dp *intel_dp, int index) return 0; if (intel_dig_port->port == PORT_A) { - return DIV_ROUND_UP(dev_priv->cdclk_freq, 2000); + return DIV_ROUND_CLOSEST(dev_priv->cdclk_freq, 2000); } else { - return DIV_ROUND_UP(intel_pch_rawclk(dev), 2); + return DIV_ROUND_CLOSEST(intel_pch_rawclk(dev), 2); } } @@ -709,7 +710,7 @@ static uint32_t hsw_get_aux_clock_divider(struct intel_dp *intel_dp, int index) if (index) return 0; return DIV_ROUND_CLOSEST(dev_priv->cdclk_freq, 2000); - } else if (dev_priv->pch_id == INTEL_PCH_LPT_DEVICE_ID_TYPE) { + } else if (HAS_PCH_LPT_H(dev_priv)) { /* Workaround for non-ULT HSW */ switch (index) { case 0: return 63; @@ -717,7 +718,7 @@ static uint32_t hsw_get_aux_clock_divider(struct intel_dp *intel_dp, int index) default: return 0; } } else { - return index ? 0 : DIV_ROUND_UP(intel_pch_rawclk(dev), 2); + return index ? 0 : DIV_ROUND_CLOSEST(intel_pch_rawclk(dev), 2); } } @@ -750,7 +751,7 @@ static uint32_t i9xx_get_aux_send_ctl(struct intel_dp *intel_dp, else precharge = 5; - if (IS_BROADWELL(dev) && intel_dp->aux_ch_ctl_reg == DPA_AUX_CH_CTL) + if (IS_BROADWELL(dev) && intel_dig_port->port == PORT_A) timeout = DP_AUX_CH_CTL_TIME_OUT_600us; else timeout = DP_AUX_CH_CTL_TIME_OUT_400us; @@ -789,8 +790,7 @@ intel_dp_aux_ch(struct intel_dp *intel_dp, struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); struct drm_device *dev = intel_dig_port->base.base.dev; struct drm_i915_private *dev_priv = dev->dev_private; - uint32_t ch_ctl = intel_dp->aux_ch_ctl_reg; - uint32_t ch_data = ch_ctl + 4; + i915_reg_t ch_ctl = intel_dp->aux_ch_ctl_reg; uint32_t aux_clock_divider; int i, ret, recv_bytes; uint32_t status; @@ -816,8 +816,6 @@ intel_dp_aux_ch(struct intel_dp *intel_dp, intel_dp_check_edp(intel_dp); - intel_aux_display_runtime_get(dev_priv); - /* Try to wait for any previous AUX channel activity */ for (try = 0; try < 3; try++) { status = I915_READ_NOTRACE(ch_ctl); @@ -856,7 +854,7 @@ intel_dp_aux_ch(struct intel_dp *intel_dp, for (try = 0; try < 5; try++) { /* Load the send data into the aux channel data registers */ for (i = 0; i < send_bytes; i += 4) - I915_WRITE(ch_data + i, + I915_WRITE(intel_dp->aux_ch_data_reg[i >> 2], intel_dp_pack_aux(send + i, send_bytes - i)); @@ -916,17 +914,37 @@ done: /* Unload any bytes sent back from the other side */ recv_bytes = ((status & DP_AUX_CH_CTL_MESSAGE_SIZE_MASK) >> DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT); + + /* + * By BSpec: "Message sizes of 0 or >20 are not allowed." + * We have no idea of what happened so we return -EBUSY so + * drm layer takes care for the necessary retries. + */ + if (recv_bytes == 0 || recv_bytes > 20) { + DRM_DEBUG_KMS("Forbidden recv_bytes = %d on aux transaction\n", + recv_bytes); + /* + * FIXME: This patch was created on top of a series that + * organize the retries at drm level. There EBUSY should + * also take care for 1ms wait before retrying. + * That aux retries re-org is still needed and after that is + * merged we remove this sleep from here. + */ + usleep_range(1000, 1500); + ret = -EBUSY; + goto out; + } + if (recv_bytes > recv_size) recv_bytes = recv_size; for (i = 0; i < recv_bytes; i += 4) - intel_dp_unpack_aux(I915_READ(ch_data + i), + intel_dp_unpack_aux(I915_READ(intel_dp->aux_ch_data_reg[i >> 2]), recv + i, recv_bytes - i); ret = recv_bytes; out: pm_qos_update_request(&dev_priv->pm_qos, PM_QOS_DEFAULT_VALUE); - intel_aux_display_runtime_put(dev_priv); if (vdd) edp_panel_vdd_off(intel_dp, false); @@ -1008,96 +1026,206 @@ intel_dp_aux_transfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg) return ret; } -static void -intel_dp_aux_init(struct intel_dp *intel_dp, struct intel_connector *connector) +static i915_reg_t g4x_aux_ctl_reg(struct drm_i915_private *dev_priv, + enum port port) { - struct drm_device *dev = intel_dp_to_dev(intel_dp); - struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); - enum port port = intel_dig_port->port; - struct ddi_vbt_port_info *info = &dev_priv->vbt.ddi_port_info[port]; - const char *name = NULL; - uint32_t porte_aux_ctl_reg = DPA_AUX_CH_CTL; - int ret; + switch (port) { + case PORT_B: + case PORT_C: + case PORT_D: + return DP_AUX_CH_CTL(port); + default: + MISSING_CASE(port); + return DP_AUX_CH_CTL(PORT_B); + } +} - /* On SKL we don't have Aux for port E so we rely on VBT to set - * a proper alternate aux channel. - */ - if (IS_SKYLAKE(dev) && port == PORT_E) { - switch (info->alternate_aux_channel) { - case DP_AUX_B: - porte_aux_ctl_reg = DPB_AUX_CH_CTL; - break; - case DP_AUX_C: - porte_aux_ctl_reg = DPC_AUX_CH_CTL; - break; - case DP_AUX_D: - porte_aux_ctl_reg = DPD_AUX_CH_CTL; - break; - case DP_AUX_A: - default: - porte_aux_ctl_reg = DPA_AUX_CH_CTL; - } +static i915_reg_t g4x_aux_data_reg(struct drm_i915_private *dev_priv, + enum port port, int index) +{ + switch (port) { + case PORT_B: + case PORT_C: + case PORT_D: + return DP_AUX_CH_DATA(port, index); + default: + MISSING_CASE(port); + return DP_AUX_CH_DATA(PORT_B, index); } +} +static i915_reg_t ilk_aux_ctl_reg(struct drm_i915_private *dev_priv, + enum port port) +{ switch (port) { case PORT_A: - intel_dp->aux_ch_ctl_reg = DPA_AUX_CH_CTL; - name = "DPDDC-A"; - break; + return DP_AUX_CH_CTL(port); case PORT_B: - intel_dp->aux_ch_ctl_reg = PCH_DPB_AUX_CH_CTL; - name = "DPDDC-B"; - break; case PORT_C: - intel_dp->aux_ch_ctl_reg = PCH_DPC_AUX_CH_CTL; - name = "DPDDC-C"; - break; case PORT_D: - intel_dp->aux_ch_ctl_reg = PCH_DPD_AUX_CH_CTL; - name = "DPDDC-D"; - break; - case PORT_E: - intel_dp->aux_ch_ctl_reg = porte_aux_ctl_reg; - name = "DPDDC-E"; - break; + return PCH_DP_AUX_CH_CTL(port); default: - BUG(); + MISSING_CASE(port); + return DP_AUX_CH_CTL(PORT_A); } +} - /* - * The AUX_CTL register is usually DP_CTL + 0x10. - * - * On Haswell and Broadwell though: - * - Both port A DDI_BUF_CTL and DDI_AUX_CTL are on the CPU - * - Port B/C/D AUX channels are on the PCH, DDI_BUF_CTL on the CPU - * - * Skylake moves AUX_CTL back next to DDI_BUF_CTL, on the CPU. - */ - if (!IS_HASWELL(dev) && !IS_BROADWELL(dev) && port != PORT_E) - intel_dp->aux_ch_ctl_reg = intel_dp->output_reg + 0x10; +static i915_reg_t ilk_aux_data_reg(struct drm_i915_private *dev_priv, + enum port port, int index) +{ + switch (port) { + case PORT_A: + return DP_AUX_CH_DATA(port, index); + case PORT_B: + case PORT_C: + case PORT_D: + return PCH_DP_AUX_CH_DATA(port, index); + default: + MISSING_CASE(port); + return DP_AUX_CH_DATA(PORT_A, index); + } +} + +/* + * On SKL we don't have Aux for port E so we rely + * on VBT to set a proper alternate aux channel. + */ +static enum port skl_porte_aux_port(struct drm_i915_private *dev_priv) +{ + const struct ddi_vbt_port_info *info = + &dev_priv->vbt.ddi_port_info[PORT_E]; + + switch (info->alternate_aux_channel) { + case DP_AUX_A: + return PORT_A; + case DP_AUX_B: + return PORT_B; + case DP_AUX_C: + return PORT_C; + case DP_AUX_D: + return PORT_D; + default: + MISSING_CASE(info->alternate_aux_channel); + return PORT_A; + } +} + +static i915_reg_t skl_aux_ctl_reg(struct drm_i915_private *dev_priv, + enum port port) +{ + if (port == PORT_E) + port = skl_porte_aux_port(dev_priv); + + switch (port) { + case PORT_A: + case PORT_B: + case PORT_C: + case PORT_D: + return DP_AUX_CH_CTL(port); + default: + MISSING_CASE(port); + return DP_AUX_CH_CTL(PORT_A); + } +} + +static i915_reg_t skl_aux_data_reg(struct drm_i915_private *dev_priv, + enum port port, int index) +{ + if (port == PORT_E) + port = skl_porte_aux_port(dev_priv); + + switch (port) { + case PORT_A: + case PORT_B: + case PORT_C: + case PORT_D: + return DP_AUX_CH_DATA(port, index); + default: + MISSING_CASE(port); + return DP_AUX_CH_DATA(PORT_A, index); + } +} + +static i915_reg_t intel_aux_ctl_reg(struct drm_i915_private *dev_priv, + enum port port) +{ + if (INTEL_INFO(dev_priv)->gen >= 9) + return skl_aux_ctl_reg(dev_priv, port); + else if (HAS_PCH_SPLIT(dev_priv)) + return ilk_aux_ctl_reg(dev_priv, port); + else + return g4x_aux_ctl_reg(dev_priv, port); +} + +static i915_reg_t intel_aux_data_reg(struct drm_i915_private *dev_priv, + enum port port, int index) +{ + if (INTEL_INFO(dev_priv)->gen >= 9) + return skl_aux_data_reg(dev_priv, port, index); + else if (HAS_PCH_SPLIT(dev_priv)) + return ilk_aux_data_reg(dev_priv, port, index); + else + return g4x_aux_data_reg(dev_priv, port, index); +} + +static void intel_aux_reg_init(struct intel_dp *intel_dp) +{ + struct drm_i915_private *dev_priv = to_i915(intel_dp_to_dev(intel_dp)); + enum port port = dp_to_dig_port(intel_dp)->port; + int i; + + intel_dp->aux_ch_ctl_reg = intel_aux_ctl_reg(dev_priv, port); + for (i = 0; i < ARRAY_SIZE(intel_dp->aux_ch_data_reg); i++) + intel_dp->aux_ch_data_reg[i] = intel_aux_data_reg(dev_priv, port, i); +} + +static void +intel_dp_aux_fini(struct intel_dp *intel_dp) +{ + drm_dp_aux_unregister(&intel_dp->aux); + kfree(intel_dp->aux.name); +} + +static int +intel_dp_aux_init(struct intel_dp *intel_dp, struct intel_connector *connector) +{ + struct drm_device *dev = intel_dp_to_dev(intel_dp); + struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); + enum port port = intel_dig_port->port; + int ret; + + intel_aux_reg_init(intel_dp); + + intel_dp->aux.name = kasprintf(GFP_KERNEL, "DPDDC-%c", port_name(port)); + if (!intel_dp->aux.name) + return -ENOMEM; - intel_dp->aux.name = name; intel_dp->aux.dev = dev->dev; intel_dp->aux.transfer = intel_dp_aux_transfer; - DRM_DEBUG_KMS("registering %s bus for %s\n", name, + DRM_DEBUG_KMS("registering %s bus for %s\n", + intel_dp->aux.name, connector->base.kdev->kobj.name); ret = drm_dp_aux_register(&intel_dp->aux); if (ret < 0) { DRM_ERROR("drm_dp_aux_register() for %s failed (%d)\n", - name, ret); - return; + intel_dp->aux.name, ret); + kfree(intel_dp->aux.name); + return ret; } ret = sysfs_create_link(&connector->base.kdev->kobj, &intel_dp->aux.ddc.dev.kobj, intel_dp->aux.ddc.dev.kobj.name); if (ret < 0) { - DRM_ERROR("sysfs_create_link() for %s failed (%d)\n", name, ret); - drm_dp_aux_unregister(&intel_dp->aux); + DRM_ERROR("sysfs_create_link() for %s failed (%d)\n", + intel_dp->aux.name, ret); + intel_dp_aux_fini(intel_dp); + return ret; } + + return 0; } static void @@ -1189,10 +1317,13 @@ intel_dp_sink_rates(struct intel_dp *intel_dp, const int **sink_rates) return (intel_dp_max_link_bw(intel_dp) >> 3) + 1; } -static bool intel_dp_source_supports_hbr2(struct drm_device *dev) +bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp) { + struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); + struct drm_device *dev = dig_port->base.base.dev; + /* WaDisableHBR2:skl */ - if (IS_SKYLAKE(dev) && INTEL_REVID(dev) <= SKL_REVID_B0) + if (IS_SKL_REVID(dev, 0, SKL_REVID_B0)) return false; if ((IS_HASWELL(dev) && !IS_HSW_ULX(dev)) || IS_BROADWELL(dev) || @@ -1203,14 +1334,16 @@ static bool intel_dp_source_supports_hbr2(struct drm_device *dev) } static int -intel_dp_source_rates(struct drm_device *dev, const int **source_rates) +intel_dp_source_rates(struct intel_dp *intel_dp, const int **source_rates) { + struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); + struct drm_device *dev = dig_port->base.base.dev; int size; if (IS_BROXTON(dev)) { *source_rates = bxt_rates; size = ARRAY_SIZE(bxt_rates); - } else if (IS_SKYLAKE(dev)) { + } else if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) { *source_rates = skl_rates; size = ARRAY_SIZE(skl_rates); } else { @@ -1219,7 +1352,7 @@ intel_dp_source_rates(struct drm_device *dev, const int **source_rates) } /* This depends on the fact that 5.4 is last value in the array */ - if (!intel_dp_source_supports_hbr2(dev)) + if (!intel_dp_source_supports_hbr2(intel_dp)) size--; return size; @@ -1284,12 +1417,11 @@ static int intersect_rates(const int *source_rates, int source_len, static int intel_dp_common_rates(struct intel_dp *intel_dp, int *common_rates) { - struct drm_device *dev = intel_dp_to_dev(intel_dp); const int *source_rates, *sink_rates; int source_len, sink_len; sink_len = intel_dp_sink_rates(intel_dp, &sink_rates); - source_len = intel_dp_source_rates(dev, &source_rates); + source_len = intel_dp_source_rates(intel_dp, &source_rates); return intersect_rates(source_rates, source_len, sink_rates, sink_len, @@ -1314,7 +1446,6 @@ static void snprintf_int_array(char *str, size_t len, static void intel_dp_print_rates(struct intel_dp *intel_dp) { - struct drm_device *dev = intel_dp_to_dev(intel_dp); const int *source_rates, *sink_rates; int source_len, sink_len, common_len; int common_rates[DP_MAX_SUPPORTED_RATES]; @@ -1323,7 +1454,7 @@ static void intel_dp_print_rates(struct intel_dp *intel_dp) if ((drm_debug & DRM_UT_KMS) == 0) return; - source_len = intel_dp_source_rates(dev, &source_rates); + source_len = intel_dp_source_rates(intel_dp, &source_rates); snprintf_int_array(str, sizeof(str), source_rates, source_len); DRM_DEBUG_KMS("source rates: %s\n", str); @@ -1365,8 +1496,8 @@ int intel_dp_rate_select(struct intel_dp *intel_dp, int rate) return rate_to_index(rate, intel_dp->sink_rates); } -static void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock, - uint8_t *link_bw, uint8_t *rate_select) +void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock, + uint8_t *link_bw, uint8_t *rate_select) { if (intel_dp->num_sink_rates) { *link_bw = 0; @@ -1426,7 +1557,7 @@ intel_dp_compute_config(struct intel_encoder *encoder, return ret; } - if (!HAS_PCH_SPLIT(dev)) + if (HAS_GMCH_DISPLAY(dev)) intel_gmch_panel_fitting(intel_crtc, pipe_config, intel_connector->panel.fitting_mode); else @@ -1530,7 +1661,7 @@ found: &pipe_config->dp_m2_n2); } - if (IS_SKYLAKE(dev) && is_edp(intel_dp)) + if ((IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) && is_edp(intel_dp)) skl_edp_set_pll_config(pipe_config); else if (IS_BROXTON(dev)) /* handled in ddi */; @@ -1542,37 +1673,6 @@ found: return true; } -static void ironlake_set_pll_cpu_edp(struct intel_dp *intel_dp) -{ - struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); - struct intel_crtc *crtc = to_intel_crtc(dig_port->base.base.crtc); - struct drm_device *dev = crtc->base.dev; - struct drm_i915_private *dev_priv = dev->dev_private; - u32 dpa_ctl; - - DRM_DEBUG_KMS("eDP PLL enable for clock %d\n", - crtc->config->port_clock); - dpa_ctl = I915_READ(DP_A); - dpa_ctl &= ~DP_PLL_FREQ_MASK; - - if (crtc->config->port_clock == 162000) { - /* For a long time we've carried around a ILK-DevA w/a for the - * 160MHz clock. If we're really unlucky, it's still required. - */ - DRM_DEBUG_KMS("160MHz cpu eDP clock, might need ilk devA w/a\n"); - dpa_ctl |= DP_PLL_FREQ_160MHZ; - intel_dp->DP |= DP_PLL_FREQ_160MHZ; - } else { - dpa_ctl |= DP_PLL_FREQ_270MHZ; - intel_dp->DP |= DP_PLL_FREQ_270MHZ; - } - - I915_WRITE(DP_A, dpa_ctl); - - POSTING_READ(DP_A); - udelay(500); -} - void intel_dp_set_link_params(struct intel_dp *intel_dp, const struct intel_crtc_state *pipe_config) { @@ -1617,9 +1717,6 @@ static void intel_dp_prepare(struct intel_encoder *encoder) intel_dp->DP |= DP_VOLTAGE_0_4 | DP_PRE_EMPHASIS_0; intel_dp->DP |= DP_PORT_WIDTH(crtc->config->lane_count); - if (crtc->config->has_audio) - intel_dp->DP |= DP_AUDIO_OUTPUT_ENABLE; - /* Split out the IBX/CPU vs CPT settings */ if (IS_GEN7(dev) && port == PORT_A) { @@ -1646,7 +1743,7 @@ static void intel_dp_prepare(struct intel_encoder *encoder) I915_WRITE(TRANS_DP_CTL(crtc->pipe), trans_dp); } else { if (!HAS_PCH_SPLIT(dev) && !IS_VALLEYVIEW(dev) && - crtc->config->limited_color_range) + !IS_CHERRYVIEW(dev) && crtc->config->limited_color_range) intel_dp->DP |= DP_COLOR_RANGE_16_235; if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC) @@ -1680,7 +1777,7 @@ static void wait_panel_status(struct intel_dp *intel_dp, { struct drm_device *dev = intel_dp_to_dev(intel_dp); struct drm_i915_private *dev_priv = dev->dev_private; - u32 pp_stat_reg, pp_ctrl_reg; + i915_reg_t pp_stat_reg, pp_ctrl_reg; lockdep_assert_held(&dev_priv->pps_mutex); @@ -1770,7 +1867,7 @@ static bool edp_panel_vdd_on(struct intel_dp *intel_dp) struct drm_i915_private *dev_priv = dev->dev_private; enum intel_display_power_domain power_domain; u32 pp; - u32 pp_stat_reg, pp_ctrl_reg; + i915_reg_t pp_stat_reg, pp_ctrl_reg; bool need_to_disable = !intel_dp->want_panel_vdd; lockdep_assert_held(&dev_priv->pps_mutex); @@ -1784,7 +1881,7 @@ static bool edp_panel_vdd_on(struct intel_dp *intel_dp) if (edp_have_panel_vdd(intel_dp)) return need_to_disable; - power_domain = intel_display_port_power_domain(intel_encoder); + power_domain = intel_display_port_aux_power_domain(intel_encoder); intel_display_power_get(dev_priv, power_domain); DRM_DEBUG_KMS("Turning eDP port %c VDD on\n", @@ -1846,7 +1943,7 @@ static void edp_panel_vdd_off_sync(struct intel_dp *intel_dp) struct intel_encoder *intel_encoder = &intel_dig_port->base; enum intel_display_power_domain power_domain; u32 pp; - u32 pp_stat_reg, pp_ctrl_reg; + i915_reg_t pp_stat_reg, pp_ctrl_reg; lockdep_assert_held(&dev_priv->pps_mutex); @@ -1874,7 +1971,7 @@ static void edp_panel_vdd_off_sync(struct intel_dp *intel_dp) if ((pp & POWER_TARGET_ON) == 0) intel_dp->last_power_cycle = jiffies; - power_domain = intel_display_port_power_domain(intel_encoder); + power_domain = intel_display_port_aux_power_domain(intel_encoder); intel_display_power_put(dev_priv, power_domain); } @@ -1933,7 +2030,7 @@ static void edp_panel_on(struct intel_dp *intel_dp) struct drm_device *dev = intel_dp_to_dev(intel_dp); struct drm_i915_private *dev_priv = dev->dev_private; u32 pp; - u32 pp_ctrl_reg; + i915_reg_t pp_ctrl_reg; lockdep_assert_held(&dev_priv->pps_mutex); @@ -1995,7 +2092,7 @@ static void edp_panel_off(struct intel_dp *intel_dp) struct drm_i915_private *dev_priv = dev->dev_private; enum intel_display_power_domain power_domain; u32 pp; - u32 pp_ctrl_reg; + i915_reg_t pp_ctrl_reg; lockdep_assert_held(&dev_priv->pps_mutex); @@ -2025,7 +2122,7 @@ static void edp_panel_off(struct intel_dp *intel_dp) wait_panel_off(intel_dp); /* We got a reference when we enabled the VDD. */ - power_domain = intel_display_port_power_domain(intel_encoder); + power_domain = intel_display_port_aux_power_domain(intel_encoder); intel_display_power_put(dev_priv, power_domain); } @@ -2046,7 +2143,7 @@ static void _intel_edp_backlight_on(struct intel_dp *intel_dp) struct drm_device *dev = intel_dig_port->base.base.dev; struct drm_i915_private *dev_priv = dev->dev_private; u32 pp; - u32 pp_ctrl_reg; + i915_reg_t pp_ctrl_reg; /* * If we enable the backlight right away following a panel power @@ -2087,7 +2184,7 @@ static void _intel_edp_backlight_off(struct intel_dp *intel_dp) struct drm_device *dev = intel_dp_to_dev(intel_dp); struct drm_i915_private *dev_priv = dev->dev_private; u32 pp; - u32 pp_ctrl_reg; + i915_reg_t pp_ctrl_reg; if (!is_edp(intel_dp)) return; @@ -2146,27 +2243,61 @@ static void intel_edp_backlight_power(struct intel_connector *connector, _intel_edp_backlight_off(intel_dp); } +static const char *state_string(bool enabled) +{ + return enabled ? "on" : "off"; +} + +static void assert_dp_port(struct intel_dp *intel_dp, bool state) +{ + struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); + struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev); + bool cur_state = I915_READ(intel_dp->output_reg) & DP_PORT_EN; + + I915_STATE_WARN(cur_state != state, + "DP port %c state assertion failure (expected %s, current %s)\n", + port_name(dig_port->port), + state_string(state), state_string(cur_state)); +} +#define assert_dp_port_disabled(d) assert_dp_port((d), false) + +static void assert_edp_pll(struct drm_i915_private *dev_priv, bool state) +{ + bool cur_state = I915_READ(DP_A) & DP_PLL_ENABLE; + + I915_STATE_WARN(cur_state != state, + "eDP PLL state assertion failure (expected %s, current %s)\n", + state_string(state), state_string(cur_state)); +} +#define assert_edp_pll_enabled(d) assert_edp_pll((d), true) +#define assert_edp_pll_disabled(d) assert_edp_pll((d), false) + static void ironlake_edp_pll_on(struct intel_dp *intel_dp) { struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); - struct drm_crtc *crtc = intel_dig_port->base.base.crtc; - struct drm_device *dev = crtc->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - u32 dpa_ctl; + struct intel_crtc *crtc = to_intel_crtc(intel_dig_port->base.base.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); - assert_pipe_disabled(dev_priv, - to_intel_crtc(crtc)->pipe); + assert_pipe_disabled(dev_priv, crtc->pipe); + assert_dp_port_disabled(intel_dp); + assert_edp_pll_disabled(dev_priv); + + DRM_DEBUG_KMS("enabling eDP PLL for clock %d\n", + crtc->config->port_clock); + + intel_dp->DP &= ~DP_PLL_FREQ_MASK; + + if (crtc->config->port_clock == 162000) + intel_dp->DP |= DP_PLL_FREQ_162MHZ; + else + intel_dp->DP |= DP_PLL_FREQ_270MHZ; + + I915_WRITE(DP_A, intel_dp->DP); + POSTING_READ(DP_A); + udelay(500); - DRM_DEBUG_KMS("\n"); - dpa_ctl = I915_READ(DP_A); - WARN(dpa_ctl & DP_PLL_ENABLE, "dp pll on, should be off\n"); - WARN(dpa_ctl & DP_PORT_EN, "dp port still on, should be off\n"); - - /* We don't adjust intel_dp->DP while tearing down the link, to - * facilitate link retraining (e.g. after hotplug). Hence clear all - * enable bits here to ensure that we don't enable too much. */ - intel_dp->DP &= ~(DP_PORT_EN | DP_AUDIO_OUTPUT_ENABLE); intel_dp->DP |= DP_PLL_ENABLE; + I915_WRITE(DP_A, intel_dp->DP); POSTING_READ(DP_A); udelay(200); @@ -2175,24 +2306,18 @@ static void ironlake_edp_pll_on(struct intel_dp *intel_dp) static void ironlake_edp_pll_off(struct intel_dp *intel_dp) { struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); - struct drm_crtc *crtc = intel_dig_port->base.base.crtc; - struct drm_device *dev = crtc->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - u32 dpa_ctl; + struct intel_crtc *crtc = to_intel_crtc(intel_dig_port->base.base.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); - assert_pipe_disabled(dev_priv, - to_intel_crtc(crtc)->pipe); + assert_pipe_disabled(dev_priv, crtc->pipe); + assert_dp_port_disabled(intel_dp); + assert_edp_pll_enabled(dev_priv); - dpa_ctl = I915_READ(DP_A); - WARN((dpa_ctl & DP_PLL_ENABLE) == 0, - "dp pll off, should be on\n"); - WARN(dpa_ctl & DP_PORT_EN, "dp port still on, should be off\n"); + DRM_DEBUG_KMS("disabling eDP PLL\n"); - /* We can't rely on the value tracked for the DP register in - * intel_dp->DP because link_down must not change that (otherwise link - * re-training will fail. */ - dpa_ctl &= ~DP_PLL_ENABLE; - I915_WRITE(DP_A, dpa_ctl); + intel_dp->DP &= ~DP_PLL_ENABLE; + + I915_WRITE(DP_A, intel_dp->DP); POSTING_READ(DP_A); udelay(200); } @@ -2261,7 +2386,7 @@ static bool intel_dp_get_hw_state(struct intel_encoder *encoder, } DRM_DEBUG_KMS("No pipe for dp port 0x%x found\n", - intel_dp->output_reg); + i915_mmio_reg_offset(intel_dp->output_reg)); } else if (IS_CHERRYVIEW(dev)) { *pipe = DP_PORT_TO_PIPE_CHV(tmp); } else { @@ -2313,7 +2438,7 @@ static void intel_dp_get_config(struct intel_encoder *encoder, pipe_config->base.adjusted_mode.flags |= flags; if (!HAS_PCH_SPLIT(dev) && !IS_VALLEYVIEW(dev) && - tmp & DP_COLOR_RANGE_16_235) + !IS_CHERRYVIEW(dev) && tmp & DP_COLOR_RANGE_16_235) pipe_config->limited_color_range = true; pipe_config->has_dp_encoder = true; @@ -2324,7 +2449,7 @@ static void intel_dp_get_config(struct intel_encoder *encoder, intel_dp_get_m_n(crtc, pipe_config); if (port == PORT_A) { - if ((I915_READ(DP_A) & DP_PLL_FREQ_MASK) == DP_PLL_FREQ_160MHZ) + if ((I915_READ(DP_A) & DP_PLL_FREQ_MASK) == DP_PLL_FREQ_162MHZ) pipe_config->port_clock = 162000; else pipe_config->port_clock = 270000; @@ -2389,6 +2514,8 @@ static void ilk_post_disable_dp(struct intel_encoder *encoder) enum port port = dp_to_dig_port(intel_dp)->port; intel_dp_link_down(intel_dp); + + /* Only ilk+ has port A */ if (port == PORT_A) ironlake_edp_pll_off(intel_dp); } @@ -2548,6 +2675,8 @@ static void intel_dp_enable_port(struct intel_dp *intel_dp) { struct drm_device *dev = intel_dp_to_dev(intel_dp); struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_crtc *crtc = + to_intel_crtc(dp_to_dig_port(intel_dp)->base.base.crtc); /* enable with pattern 1 (as per spec) */ _intel_dp_set_link_train(intel_dp, &intel_dp->DP, @@ -2563,6 +2692,8 @@ static void intel_dp_enable_port(struct intel_dp *intel_dp) * fail when the power sequencer is freshly used for this port. */ intel_dp->DP |= DP_PORT_EN; + if (crtc->config->has_audio) + intel_dp->DP |= DP_AUDIO_OUTPUT_ENABLE; I915_WRITE(intel_dp->output_reg, intel_dp->DP); POSTING_READ(intel_dp->output_reg); @@ -2575,24 +2706,49 @@ static void intel_enable_dp(struct intel_encoder *encoder) struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc); uint32_t dp_reg = I915_READ(intel_dp->output_reg); + enum port port = dp_to_dig_port(intel_dp)->port; + enum pipe pipe = crtc->pipe; if (WARN_ON(dp_reg & DP_PORT_EN)) return; pps_lock(intel_dp); - if (IS_VALLEYVIEW(dev)) + if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) vlv_init_panel_power_sequencer(intel_dp); + /* + * We get an occasional spurious underrun between the port + * enable and vdd enable, when enabling port A eDP. + * + * FIXME: Not sure if this applies to (PCH) port D eDP as well + */ + if (port == PORT_A) + intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); + intel_dp_enable_port(intel_dp); + if (port == PORT_A && IS_GEN5(dev_priv)) { + /* + * Underrun reporting for the other pipe was disabled in + * g4x_pre_enable_dp(). The eDP PLL and port have now been + * enabled, so it's now safe to re-enable underrun reporting. + */ + intel_wait_for_vblank_if_active(dev_priv->dev, !pipe); + intel_set_cpu_fifo_underrun_reporting(dev_priv, !pipe, true); + intel_set_pch_fifo_underrun_reporting(dev_priv, !pipe, true); + } + edp_panel_vdd_on(intel_dp); edp_panel_on(intel_dp); edp_panel_vdd_off(intel_dp, true); + if (port == PORT_A) + intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); + pps_unlock(intel_dp); - if (IS_VALLEYVIEW(dev)) { + if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { unsigned int lane_mask = 0x0; if (IS_CHERRYVIEW(dev)) @@ -2608,7 +2764,7 @@ static void intel_enable_dp(struct intel_encoder *encoder) if (crtc->config->has_audio) { DRM_DEBUG_DRIVER("Enabling DP audio on pipe %c\n", - pipe_name(crtc->pipe)); + pipe_name(pipe)); intel_audio_codec_enable(encoder); } } @@ -2631,16 +2787,29 @@ static void vlv_enable_dp(struct intel_encoder *encoder) static void g4x_pre_enable_dp(struct intel_encoder *encoder) { + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base); - struct intel_digital_port *dport = dp_to_dig_port(intel_dp); + enum port port = dp_to_dig_port(intel_dp)->port; + enum pipe pipe = to_intel_crtc(encoder->base.crtc)->pipe; intel_dp_prepare(encoder); + if (port == PORT_A && IS_GEN5(dev_priv)) { + /* + * We get FIFO underruns on the other pipe when + * enabling the CPU eDP PLL, and when enabling CPU + * eDP port. We could potentially avoid the PLL + * underrun with a vblank wait just prior to enabling + * the PLL, but that doesn't appear to help the port + * enable case. Just sweep it all under the rug. + */ + intel_set_cpu_fifo_underrun_reporting(dev_priv, !pipe, false); + intel_set_pch_fifo_underrun_reporting(dev_priv, !pipe, false); + } + /* Only ilk+ has port A */ - if (dport->port == PORT_A) { - ironlake_set_pll_cpu_edp(intel_dp); + if (port == PORT_A) ironlake_edp_pll_on(intel_dp); - } } static void vlv_detach_power_sequencer(struct intel_dp *intel_dp) @@ -2648,7 +2817,7 @@ static void vlv_detach_power_sequencer(struct intel_dp *intel_dp) struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); struct drm_i915_private *dev_priv = intel_dig_port->base.base.dev->dev_private; enum pipe pipe = intel_dp->pps_pipe; - int pp_on_reg = VLV_PIPE_PP_ON_DELAYS(pipe); + i915_reg_t pp_on_reg = VLV_PIPE_PP_ON_DELAYS(pipe); edp_panel_vdd_off_sync(intel_dp); @@ -2680,8 +2849,7 @@ static void vlv_steal_power_sequencer(struct drm_device *dev, if (WARN_ON(pipe != PIPE_A && pipe != PIPE_B)) return; - list_for_each_entry(encoder, &dev->mode_config.encoder_list, - base.head) { + for_each_intel_encoder(dev, encoder) { struct intel_dp *intel_dp; enum port port; @@ -3046,7 +3214,7 @@ intel_dp_dpcd_read_wake(struct drm_dp_aux *aux, unsigned int offset, * Fetch AUX CH registers 0x202 - 0x207 which contain * link status information */ -static bool +bool intel_dp_get_link_status(struct intel_dp *intel_dp, uint8_t link_status[DP_LINK_STATUS_SIZE]) { return intel_dp_dpcd_read_wake(&intel_dp->aux, @@ -3056,7 +3224,7 @@ intel_dp_get_link_status(struct intel_dp *intel_dp, uint8_t link_status[DP_LINK_ } /* These are source-specific values. */ -static uint8_t +uint8_t intel_dp_voltage_max(struct intel_dp *intel_dp) { struct drm_device *dev = intel_dp_to_dev(intel_dp); @@ -3069,7 +3237,7 @@ intel_dp_voltage_max(struct intel_dp *intel_dp) if (dev_priv->edp_low_vswing && port == PORT_A) return DP_TRAIN_VOLTAGE_SWING_LEVEL_3; return DP_TRAIN_VOLTAGE_SWING_LEVEL_2; - } else if (IS_VALLEYVIEW(dev)) + } else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) return DP_TRAIN_VOLTAGE_SWING_LEVEL_3; else if (IS_GEN7(dev) && port == PORT_A) return DP_TRAIN_VOLTAGE_SWING_LEVEL_2; @@ -3079,7 +3247,7 @@ intel_dp_voltage_max(struct intel_dp *intel_dp) return DP_TRAIN_VOLTAGE_SWING_LEVEL_2; } -static uint8_t +uint8_t intel_dp_pre_emphasis_max(struct intel_dp *intel_dp, uint8_t voltage_swing) { struct drm_device *dev = intel_dp_to_dev(intel_dp); @@ -3110,7 +3278,7 @@ intel_dp_pre_emphasis_max(struct intel_dp *intel_dp, uint8_t voltage_swing) default: return DP_TRAIN_PRE_EMPH_LEVEL_0; } - } else if (IS_VALLEYVIEW(dev)) { + } else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) { case DP_TRAIN_VOLTAGE_SWING_LEVEL_0: return DP_TRAIN_PRE_EMPH_LEVEL_3; @@ -3421,38 +3589,6 @@ static uint32_t chv_signal_levels(struct intel_dp *intel_dp) return 0; } -static void -intel_get_adjust_train(struct intel_dp *intel_dp, - const uint8_t link_status[DP_LINK_STATUS_SIZE]) -{ - uint8_t v = 0; - uint8_t p = 0; - int lane; - uint8_t voltage_max; - uint8_t preemph_max; - - for (lane = 0; lane < intel_dp->lane_count; lane++) { - uint8_t this_v = drm_dp_get_adjust_request_voltage(link_status, lane); - uint8_t this_p = drm_dp_get_adjust_request_pre_emphasis(link_status, lane); - - if (this_v > v) - v = this_v; - if (this_p > p) - p = this_p; - } - - voltage_max = intel_dp_voltage_max(intel_dp); - if (v >= voltage_max) - v = voltage_max | DP_TRAIN_MAX_SWING_REACHED; - - preemph_max = intel_dp_pre_emphasis_max(intel_dp, v); - if (p >= preemph_max) - p = preemph_max | DP_TRAIN_MAX_PRE_EMPHASIS_REACHED; - - for (lane = 0; lane < 4; lane++) - intel_dp->train_set[lane] = v | p; -} - static uint32_t gen4_signal_levels(uint8_t train_set) { @@ -3550,13 +3686,13 @@ gen7_edp_signal_levels(uint8_t train_set) } } -/* Properly updates "DP" with the correct signal levels. */ -static void -intel_dp_set_signal_levels(struct intel_dp *intel_dp, uint32_t *DP) +void +intel_dp_set_signal_levels(struct intel_dp *intel_dp) { struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); enum port port = intel_dig_port->port; struct drm_device *dev = intel_dig_port->base.base.dev; + struct drm_i915_private *dev_priv = to_i915(dev); uint32_t signal_levels, mask = 0; uint8_t train_set = intel_dp->train_set[0]; @@ -3591,74 +3727,27 @@ intel_dp_set_signal_levels(struct intel_dp *intel_dp, uint32_t *DP) (train_set & DP_TRAIN_PRE_EMPHASIS_MASK) >> DP_TRAIN_PRE_EMPHASIS_SHIFT); - *DP = (*DP & ~mask) | signal_levels; -} + intel_dp->DP = (intel_dp->DP & ~mask) | signal_levels; -static bool -intel_dp_set_link_train(struct intel_dp *intel_dp, - uint32_t *DP, - uint8_t dp_train_pat) -{ - struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); - struct drm_i915_private *dev_priv = - to_i915(intel_dig_port->base.base.dev); - uint8_t buf[sizeof(intel_dp->train_set) + 1]; - int ret, len; - - _intel_dp_set_link_train(intel_dp, DP, dp_train_pat); - - I915_WRITE(intel_dp->output_reg, *DP); + I915_WRITE(intel_dp->output_reg, intel_dp->DP); POSTING_READ(intel_dp->output_reg); - - buf[0] = dp_train_pat; - if ((dp_train_pat & DP_TRAINING_PATTERN_MASK) == - DP_TRAINING_PATTERN_DISABLE) { - /* don't write DP_TRAINING_LANEx_SET on disable */ - len = 1; - } else { - /* DP_TRAINING_LANEx_SET follow DP_TRAINING_PATTERN_SET */ - memcpy(buf + 1, intel_dp->train_set, intel_dp->lane_count); - len = intel_dp->lane_count + 1; - } - - ret = drm_dp_dpcd_write(&intel_dp->aux, DP_TRAINING_PATTERN_SET, - buf, len); - - return ret == len; -} - -static bool -intel_dp_reset_link_train(struct intel_dp *intel_dp, uint32_t *DP, - uint8_t dp_train_pat) -{ - if (!intel_dp->train_set_valid) - memset(intel_dp->train_set, 0, sizeof(intel_dp->train_set)); - intel_dp_set_signal_levels(intel_dp, DP); - return intel_dp_set_link_train(intel_dp, DP, dp_train_pat); } -static bool -intel_dp_update_link_train(struct intel_dp *intel_dp, uint32_t *DP, - const uint8_t link_status[DP_LINK_STATUS_SIZE]) +void +intel_dp_program_link_training_pattern(struct intel_dp *intel_dp, + uint8_t dp_train_pat) { struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); struct drm_i915_private *dev_priv = to_i915(intel_dig_port->base.base.dev); - int ret; - intel_get_adjust_train(intel_dp, link_status); - intel_dp_set_signal_levels(intel_dp, DP); + _intel_dp_set_link_train(intel_dp, &intel_dp->DP, dp_train_pat); - I915_WRITE(intel_dp->output_reg, *DP); + I915_WRITE(intel_dp->output_reg, intel_dp->DP); POSTING_READ(intel_dp->output_reg); - - ret = drm_dp_dpcd_write(&intel_dp->aux, DP_TRAINING_LANE0_SET, - intel_dp->train_set, intel_dp->lane_count); - - return ret == intel_dp->lane_count; } -static void intel_dp_set_idle_link_train(struct intel_dp *intel_dp) +void intel_dp_set_idle_link_train(struct intel_dp *intel_dp) { struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); struct drm_device *dev = intel_dig_port->base.base.dev; @@ -3689,232 +3778,6 @@ static void intel_dp_set_idle_link_train(struct intel_dp *intel_dp) DRM_ERROR("Timed out waiting for DP idle patterns\n"); } -/* Enable corresponding port and start training pattern 1 */ -static void -intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp) -{ - struct drm_encoder *encoder = &dp_to_dig_port(intel_dp)->base.base; - struct drm_device *dev = encoder->dev; - int i; - uint8_t voltage; - int voltage_tries, loop_tries; - uint32_t DP = intel_dp->DP; - uint8_t link_config[2]; - uint8_t link_bw, rate_select; - - if (HAS_DDI(dev)) - intel_ddi_prepare_link_retrain(encoder); - - intel_dp_compute_rate(intel_dp, intel_dp->link_rate, - &link_bw, &rate_select); - - /* Write the link configuration data */ - link_config[0] = link_bw; - link_config[1] = intel_dp->lane_count; - if (drm_dp_enhanced_frame_cap(intel_dp->dpcd)) - link_config[1] |= DP_LANE_COUNT_ENHANCED_FRAME_EN; - drm_dp_dpcd_write(&intel_dp->aux, DP_LINK_BW_SET, link_config, 2); - if (intel_dp->num_sink_rates) - drm_dp_dpcd_write(&intel_dp->aux, DP_LINK_RATE_SET, - &rate_select, 1); - - link_config[0] = 0; - link_config[1] = DP_SET_ANSI_8B10B; - drm_dp_dpcd_write(&intel_dp->aux, DP_DOWNSPREAD_CTRL, link_config, 2); - - DP |= DP_PORT_EN; - - /* clock recovery */ - if (!intel_dp_reset_link_train(intel_dp, &DP, - DP_TRAINING_PATTERN_1 | - DP_LINK_SCRAMBLING_DISABLE)) { - DRM_ERROR("failed to enable link training\n"); - return; - } - - voltage = 0xff; - voltage_tries = 0; - loop_tries = 0; - for (;;) { - uint8_t link_status[DP_LINK_STATUS_SIZE]; - - drm_dp_link_train_clock_recovery_delay(intel_dp->dpcd); - if (!intel_dp_get_link_status(intel_dp, link_status)) { - DRM_ERROR("failed to get link status\n"); - break; - } - - if (drm_dp_clock_recovery_ok(link_status, intel_dp->lane_count)) { - DRM_DEBUG_KMS("clock recovery OK\n"); - break; - } - - /* - * if we used previously trained voltage and pre-emphasis values - * and we don't get clock recovery, reset link training values - */ - if (intel_dp->train_set_valid) { - DRM_DEBUG_KMS("clock recovery not ok, reset"); - /* clear the flag as we are not reusing train set */ - intel_dp->train_set_valid = false; - if (!intel_dp_reset_link_train(intel_dp, &DP, - DP_TRAINING_PATTERN_1 | - DP_LINK_SCRAMBLING_DISABLE)) { - DRM_ERROR("failed to enable link training\n"); - return; - } - continue; - } - - /* Check to see if we've tried the max voltage */ - for (i = 0; i < intel_dp->lane_count; i++) - if ((intel_dp->train_set[i] & DP_TRAIN_MAX_SWING_REACHED) == 0) - break; - if (i == intel_dp->lane_count) { - ++loop_tries; - if (loop_tries == 5) { - DRM_ERROR("too many full retries, give up\n"); - break; - } - intel_dp_reset_link_train(intel_dp, &DP, - DP_TRAINING_PATTERN_1 | - DP_LINK_SCRAMBLING_DISABLE); - voltage_tries = 0; - continue; - } - - /* Check to see if we've tried the same voltage 5 times */ - if ((intel_dp->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK) == voltage) { - ++voltage_tries; - if (voltage_tries == 5) { - DRM_ERROR("too many voltage retries, give up\n"); - break; - } - } else - voltage_tries = 0; - voltage = intel_dp->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK; - - /* Update training set as requested by target */ - if (!intel_dp_update_link_train(intel_dp, &DP, link_status)) { - DRM_ERROR("failed to update link training\n"); - break; - } - } - - intel_dp->DP = DP; -} - -static void -intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp) -{ - struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); - struct drm_device *dev = dig_port->base.base.dev; - bool channel_eq = false; - int tries, cr_tries; - uint32_t DP = intel_dp->DP; - uint32_t training_pattern = DP_TRAINING_PATTERN_2; - - /* - * Training Pattern 3 for HBR2 or 1.2 devices that support it. - * - * Intel platforms that support HBR2 also support TPS3. TPS3 support is - * also mandatory for downstream devices that support HBR2. - * - * Due to WaDisableHBR2 SKL < B0 is the only exception where TPS3 is - * supported but still not enabled. - */ - if (intel_dp_source_supports_hbr2(dev) && - drm_dp_tps3_supported(intel_dp->dpcd)) - training_pattern = DP_TRAINING_PATTERN_3; - else if (intel_dp->link_rate == 540000) - DRM_ERROR("5.4 Gbps link rate without HBR2/TPS3 support\n"); - - /* channel equalization */ - if (!intel_dp_set_link_train(intel_dp, &DP, - training_pattern | - DP_LINK_SCRAMBLING_DISABLE)) { - DRM_ERROR("failed to start channel equalization\n"); - return; - } - - tries = 0; - cr_tries = 0; - channel_eq = false; - for (;;) { - uint8_t link_status[DP_LINK_STATUS_SIZE]; - - if (cr_tries > 5) { - DRM_ERROR("failed to train DP, aborting\n"); - break; - } - - drm_dp_link_train_channel_eq_delay(intel_dp->dpcd); - if (!intel_dp_get_link_status(intel_dp, link_status)) { - DRM_ERROR("failed to get link status\n"); - break; - } - - /* Make sure clock is still ok */ - if (!drm_dp_clock_recovery_ok(link_status, - intel_dp->lane_count)) { - intel_dp->train_set_valid = false; - intel_dp_link_training_clock_recovery(intel_dp); - intel_dp_set_link_train(intel_dp, &DP, - training_pattern | - DP_LINK_SCRAMBLING_DISABLE); - cr_tries++; - continue; - } - - if (drm_dp_channel_eq_ok(link_status, - intel_dp->lane_count)) { - channel_eq = true; - break; - } - - /* Try 5 times, then try clock recovery if that fails */ - if (tries > 5) { - intel_dp->train_set_valid = false; - intel_dp_link_training_clock_recovery(intel_dp); - intel_dp_set_link_train(intel_dp, &DP, - training_pattern | - DP_LINK_SCRAMBLING_DISABLE); - tries = 0; - cr_tries++; - continue; - } - - /* Update training set as requested by target */ - if (!intel_dp_update_link_train(intel_dp, &DP, link_status)) { - DRM_ERROR("failed to update link training\n"); - break; - } - ++tries; - } - - intel_dp_set_idle_link_train(intel_dp); - - intel_dp->DP = DP; - - if (channel_eq) { - intel_dp->train_set_valid = true; - DRM_DEBUG_KMS("Channel EQ done. DP Training successful\n"); - } -} - -void intel_dp_stop_link_train(struct intel_dp *intel_dp) -{ - intel_dp_set_link_train(intel_dp, &intel_dp->DP, - DP_TRAINING_PATTERN_DISABLE); -} - -void -intel_dp_start_link_train(struct intel_dp *intel_dp) -{ - intel_dp_link_training_clock_recovery(intel_dp); - intel_dp_link_training_channel_equalization(intel_dp); -} - static void intel_dp_link_down(struct intel_dp *intel_dp) { @@ -3957,6 +3820,13 @@ intel_dp_link_down(struct intel_dp *intel_dp) * matching HDMI port to be enabled on transcoder A. */ if (HAS_PCH_IBX(dev) && crtc->pipe == PIPE_B && port != PORT_A) { + /* + * We get CPU/PCH FIFO underruns on the other pipe when + * doing the workaround. Sweep them under the rug. + */ + intel_set_cpu_fifo_underrun_reporting(dev_priv, PIPE_A, false); + intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, false); + /* always enable with pattern 1 (as per spec) */ DP &= ~(DP_PIPEB_SELECT | DP_LINK_TRAIN_MASK); DP |= DP_PORT_EN | DP_LINK_TRAIN_PAT_1; @@ -3966,9 +3836,15 @@ intel_dp_link_down(struct intel_dp *intel_dp) DP &= ~DP_PORT_EN; I915_WRITE(intel_dp->output_reg, DP); POSTING_READ(intel_dp->output_reg); + + intel_wait_for_vblank_if_active(dev_priv->dev, PIPE_A); + intel_set_cpu_fifo_underrun_reporting(dev_priv, PIPE_A, true); + intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, true); } msleep(intel_dp->panel_power_down_delay); + + intel_dp->DP = DP; } static bool @@ -4016,7 +3892,7 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp) } DRM_DEBUG_KMS("Display Port TPS3 support: source %s, sink %s\n", - yesno(intel_dp_source_supports_hbr2(dev)), + yesno(intel_dp_source_supports_hbr2(intel_dp)), yesno(drm_dp_tps3_supported(intel_dp->dpcd))); /* Intermediate frequency support */ @@ -4106,9 +3982,12 @@ intel_dp_probe_mst(struct intel_dp *intel_dp) static int intel_dp_sink_crc_stop(struct intel_dp *intel_dp) { struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); + struct drm_device *dev = dig_port->base.base.dev; struct intel_crtc *intel_crtc = to_intel_crtc(dig_port->base.base.crtc); u8 buf; int ret = 0; + int count = 0; + int attempts = 10; if (drm_dp_dpcd_readb(&intel_dp->aux, DP_TEST_SINK, &buf) < 0) { DRM_DEBUG_KMS("Sink CRC couldn't be stopped properly\n"); @@ -4123,7 +4002,22 @@ static int intel_dp_sink_crc_stop(struct intel_dp *intel_dp) goto out; } - intel_dp->sink_crc.started = false; + do { + intel_wait_for_vblank(dev, intel_crtc->pipe); + + if (drm_dp_dpcd_readb(&intel_dp->aux, + DP_TEST_SINK_MISC, &buf) < 0) { + ret = -EIO; + goto out; + } + count = buf & DP_TEST_COUNT_MASK; + } while (--attempts && count); + + if (attempts == 0) { + DRM_ERROR("TIMEOUT: Sink CRC counter is not zeroed\n"); + ret = -ETIMEDOUT; + } + out: hsw_enable_ips(intel_crtc); return ret; @@ -4132,27 +4026,26 @@ static int intel_dp_sink_crc_stop(struct intel_dp *intel_dp) static int intel_dp_sink_crc_start(struct intel_dp *intel_dp) { struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); + struct drm_device *dev = dig_port->base.base.dev; struct intel_crtc *intel_crtc = to_intel_crtc(dig_port->base.base.crtc); u8 buf; int ret; - if (intel_dp->sink_crc.started) { - ret = intel_dp_sink_crc_stop(intel_dp); - if (ret) - return ret; - } - if (drm_dp_dpcd_readb(&intel_dp->aux, DP_TEST_SINK_MISC, &buf) < 0) return -EIO; if (!(buf & DP_TEST_CRC_SUPPORTED)) return -ENOTTY; - intel_dp->sink_crc.last_count = buf & DP_TEST_COUNT_MASK; - if (drm_dp_dpcd_readb(&intel_dp->aux, DP_TEST_SINK, &buf) < 0) return -EIO; + if (buf & DP_TEST_SINK_START) { + ret = intel_dp_sink_crc_stop(intel_dp); + if (ret) + return ret; + } + hsw_disable_ips(intel_crtc); if (drm_dp_dpcd_writeb(&intel_dp->aux, DP_TEST_SINK, @@ -4161,7 +4054,7 @@ static int intel_dp_sink_crc_start(struct intel_dp *intel_dp) return -EIO; } - intel_dp->sink_crc.started = true; + intel_wait_for_vblank(dev, intel_crtc->pipe); return 0; } @@ -4173,7 +4066,6 @@ int intel_dp_sink_crc(struct intel_dp *intel_dp, u8 *crc) u8 buf; int count, ret; int attempts = 6; - bool old_equal_new; ret = intel_dp_sink_crc_start(intel_dp); if (ret) @@ -4189,35 +4081,17 @@ int intel_dp_sink_crc(struct intel_dp *intel_dp, u8 *crc) } count = buf & DP_TEST_COUNT_MASK; - /* - * Count might be reset during the loop. In this case - * last known count needs to be reset as well. - */ - if (count == 0) - intel_dp->sink_crc.last_count = 0; - - if (drm_dp_dpcd_read(&intel_dp->aux, DP_TEST_CRC_R_CR, crc, 6) < 0) { - ret = -EIO; - goto stop; - } - - old_equal_new = (count == intel_dp->sink_crc.last_count && - !memcmp(intel_dp->sink_crc.last_crc, crc, - 6 * sizeof(u8))); - - } while (--attempts && (count == 0 || old_equal_new)); - - intel_dp->sink_crc.last_count = buf & DP_TEST_COUNT_MASK; - memcpy(intel_dp->sink_crc.last_crc, crc, 6 * sizeof(u8)); + } while (--attempts && count == 0); if (attempts == 0) { - if (old_equal_new) { - DRM_DEBUG_KMS("Unreliable Sink CRC counter: Current returned CRC is identical to the previous one\n"); - } else { - DRM_ERROR("Panel is unable to calculate any CRC after 6 vblanks\n"); - ret = -ETIMEDOUT; - goto stop; - } + DRM_ERROR("Panel is unable to calculate any CRC after 6 vblanks\n"); + ret = -ETIMEDOUT; + goto stop; + } + + if (drm_dp_dpcd_read(&intel_dp->aux, DP_TEST_CRC_R_CR, crc, 6) < 0) { + ret = -EIO; + goto stop; } stop: @@ -4317,13 +4191,6 @@ static void intel_dp_handle_test_request(struct intel_dp *intel_dp) uint8_t rxdata = 0; int status = 0; - intel_dp->compliance_test_active = 0; - intel_dp->compliance_test_type = 0; - intel_dp->compliance_test_data = 0; - - intel_dp->aux.i2c_nack_count = 0; - intel_dp->aux.i2c_defer_count = 0; - status = drm_dp_dpcd_read(&intel_dp->aux, DP_TEST_REQUEST, &rxdata, 1); if (status <= 0) { DRM_DEBUG_KMS("Could not read test request from sink\n"); @@ -4439,6 +4306,14 @@ intel_dp_check_link_status(struct intel_dp *intel_dp) WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); + /* + * Clearing compliance test variables to allow capturing + * of values for next automated test request. + */ + intel_dp->compliance_test_active = 0; + intel_dp->compliance_test_type = 0; + intel_dp->compliance_test_data = 0; + if (!intel_encoder->base.crtc) return; @@ -4469,7 +4344,9 @@ intel_dp_check_link_status(struct intel_dp *intel_dp) DRM_DEBUG_DRIVER("CP or sink specific irq unhandled\n"); } - if (!drm_dp_channel_eq_ok(link_status, intel_dp->lane_count)) { + /* if link training is requested we should perform it always */ + if ((intel_dp->compliance_test_type == DP_TEST_LINK_TRAINING) || + (!drm_dp_channel_eq_ok(link_status, intel_dp->lane_count))) { DRM_DEBUG_KMS("%s: channel EQ not ok, retraining\n", intel_encoder->base.name); intel_dp_start_link_train(intel_dp); @@ -4681,47 +4558,12 @@ bool intel_digital_port_connected(struct drm_i915_private *dev_priv, return cpt_digital_port_connected(dev_priv, port); else if (IS_BROXTON(dev_priv)) return bxt_digital_port_connected(dev_priv, port); - else if (IS_VALLEYVIEW(dev_priv)) + else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) return vlv_digital_port_connected(dev_priv, port); else return g4x_digital_port_connected(dev_priv, port); } -static enum drm_connector_status -ironlake_dp_detect(struct intel_dp *intel_dp) -{ - struct drm_device *dev = intel_dp_to_dev(intel_dp); - struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); - - if (!intel_digital_port_connected(dev_priv, intel_dig_port)) - return connector_status_disconnected; - - return intel_dp_detect_dpcd(intel_dp); -} - -static enum drm_connector_status -g4x_dp_detect(struct intel_dp *intel_dp) -{ - struct drm_device *dev = intel_dp_to_dev(intel_dp); - struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); - - /* Can't disconnect eDP, but you can close the lid... */ - if (is_edp(intel_dp)) { - enum drm_connector_status status; - - status = intel_panel_detect(dev); - if (status == connector_status_unknown) - status = connector_status_connected; - return status; - } - - if (!intel_digital_port_connected(dev->dev_private, intel_dig_port)) - return connector_status_disconnected; - - return intel_dp_detect_dpcd(intel_dp); -} - static struct edid * intel_dp_get_edid(struct intel_dp *intel_dp) { @@ -4765,26 +4607,6 @@ intel_dp_unset_edid(struct intel_dp *intel_dp) intel_dp->has_audio = false; } -static enum intel_display_power_domain -intel_dp_power_get(struct intel_dp *dp) -{ - struct intel_encoder *encoder = &dp_to_dig_port(dp)->base; - enum intel_display_power_domain power_domain; - - power_domain = intel_display_port_power_domain(encoder); - intel_display_power_get(to_i915(encoder->base.dev), power_domain); - - return power_domain; -} - -static void -intel_dp_power_put(struct intel_dp *dp, - enum intel_display_power_domain power_domain) -{ - struct intel_encoder *encoder = &dp_to_dig_port(dp)->base; - intel_display_power_put(to_i915(encoder->base.dev), power_domain); -} - static enum drm_connector_status intel_dp_detect(struct drm_connector *connector, bool force) { @@ -4808,17 +4630,25 @@ intel_dp_detect(struct drm_connector *connector, bool force) return connector_status_disconnected; } - power_domain = intel_dp_power_get(intel_dp); + power_domain = intel_display_port_aux_power_domain(intel_encoder); + intel_display_power_get(to_i915(dev), power_domain); /* Can't disconnect eDP, but you can close the lid... */ if (is_edp(intel_dp)) status = edp_detect(intel_dp); - else if (HAS_PCH_SPLIT(dev)) - status = ironlake_dp_detect(intel_dp); + else if (intel_digital_port_connected(to_i915(dev), + dp_to_dig_port(intel_dp))) + status = intel_dp_detect_dpcd(intel_dp); else - status = g4x_dp_detect(intel_dp); - if (status != connector_status_connected) + status = connector_status_disconnected; + + if (status != connector_status_connected) { + intel_dp->compliance_test_active = 0; + intel_dp->compliance_test_type = 0; + intel_dp->compliance_test_data = 0; + goto out; + } intel_dp_probe_oui(intel_dp); @@ -4832,6 +4662,14 @@ intel_dp_detect(struct drm_connector *connector, bool force) goto out; } + /* + * Clearing NACK and defer counts to get their exact values + * while reading EDID which are required by Compliance tests + * 4.2.2.4 and 4.2.2.5 + */ + intel_dp->aux.i2c_nack_count = 0; + intel_dp->aux.i2c_defer_count = 0; + intel_dp_set_edid(intel_dp); if (intel_encoder->type != INTEL_OUTPUT_EDP) @@ -4853,7 +4691,7 @@ intel_dp_detect(struct drm_connector *connector, bool force) } out: - intel_dp_power_put(intel_dp, power_domain); + intel_display_power_put(to_i915(dev), power_domain); return status; } @@ -4862,6 +4700,7 @@ intel_dp_force(struct drm_connector *connector) { struct intel_dp *intel_dp = intel_attached_dp(connector); struct intel_encoder *intel_encoder = &dp_to_dig_port(intel_dp)->base; + struct drm_i915_private *dev_priv = to_i915(intel_encoder->base.dev); enum intel_display_power_domain power_domain; DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", @@ -4871,11 +4710,12 @@ intel_dp_force(struct drm_connector *connector) if (connector->status != connector_status_connected) return; - power_domain = intel_dp_power_get(intel_dp); + power_domain = intel_display_port_aux_power_domain(intel_encoder); + intel_display_power_get(dev_priv, power_domain); intel_dp_set_edid(intel_dp); - intel_dp_power_put(intel_dp, power_domain); + intel_display_power_put(dev_priv, power_domain); if (intel_encoder->type != INTEL_OUTPUT_EDP) intel_encoder->type = INTEL_OUTPUT_DISPLAYPORT; @@ -5034,7 +4874,7 @@ void intel_dp_encoder_destroy(struct drm_encoder *encoder) struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder); struct intel_dp *intel_dp = &intel_dig_port->dp; - drm_dp_aux_unregister(&intel_dp->aux); + intel_dp_aux_fini(intel_dp); intel_dp_mst_encoder_cleanup(intel_dig_port); if (is_edp(intel_dp)) { cancel_delayed_work_sync(&intel_dp->panel_vdd_work); @@ -5091,7 +4931,7 @@ static void intel_edp_panel_vdd_sanitize(struct intel_dp *intel_dp) * indefinitely. */ DRM_DEBUG_KMS("VDD left on by BIOS, adjusting state tracking\n"); - power_domain = intel_display_port_power_domain(&intel_dig_port->base); + power_domain = intel_display_port_aux_power_domain(&intel_dig_port->base); intel_display_power_get(dev_priv, power_domain); edp_panel_vdd_schedule_off(intel_dp); @@ -5112,7 +4952,7 @@ static void intel_dp_encoder_reset(struct drm_encoder *encoder) * Read out the current power sequencer assignment, * in case the BIOS did something with it. */ - if (IS_VALLEYVIEW(encoder->dev)) + if (IS_VALLEYVIEW(encoder->dev) || IS_CHERRYVIEW(encoder->dev)) vlv_initial_power_sequencer_setup(intel_dp); intel_edp_panel_vdd_sanitize(intel_dp); @@ -5153,7 +4993,8 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd) enum intel_display_power_domain power_domain; enum irqreturn ret = IRQ_NONE; - if (intel_dig_port->base.type != INTEL_OUTPUT_EDP) + if (intel_dig_port->base.type != INTEL_OUTPUT_EDP && + intel_dig_port->base.type != INTEL_OUTPUT_HDMI) intel_dig_port->base.type = INTEL_OUTPUT_DISPLAYPORT; if (long_hpd && intel_dig_port->base.type == INTEL_OUTPUT_EDP) { @@ -5172,7 +5013,7 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd) port_name(intel_dig_port->port), long_hpd ? "long" : "short"); - power_domain = intel_display_port_power_domain(intel_encoder); + power_domain = intel_display_port_aux_power_domain(intel_encoder); intel_display_power_get(dev_priv, power_domain); if (long_hpd) { @@ -5223,25 +5064,6 @@ put_power: return ret; } -/* Return which DP Port should be selected for Transcoder DP control */ -int -intel_trans_dp_port_sel(struct drm_crtc *crtc) -{ - struct drm_device *dev = crtc->dev; - struct intel_encoder *intel_encoder; - struct intel_dp *intel_dp; - - for_each_encoder_on_crtc(dev, crtc, intel_encoder) { - intel_dp = enc_to_intel_dp(&intel_encoder->base); - - if (intel_encoder->type == INTEL_OUTPUT_DISPLAYPORT || - intel_encoder->type == INTEL_OUTPUT_EDP) - return intel_dp->output_reg; - } - - return -1; -} - /* check the VBT to see whether the eDP is on another port */ bool intel_dp_is_edp(struct drm_device *dev, enum port port) { @@ -5313,7 +5135,7 @@ intel_dp_init_panel_power_sequencer(struct drm_device *dev, struct edp_power_seq cur, vbt, spec, *final = &intel_dp->pps_delays; u32 pp_on, pp_off, pp_div = 0, pp_ctl = 0; - int pp_ctrl_reg, pp_on_reg, pp_off_reg, pp_div_reg = 0; + i915_reg_t pp_ctrl_reg, pp_on_reg, pp_off_reg, pp_div_reg; lockdep_assert_held(&dev_priv->pps_mutex); @@ -5435,7 +5257,7 @@ intel_dp_init_panel_power_sequencer_registers(struct drm_device *dev, struct drm_i915_private *dev_priv = dev->dev_private; u32 pp_on, pp_off, pp_div, port_sel = 0; int div = HAS_PCH_SPLIT(dev) ? intel_pch_rawclk(dev) : intel_hrawclk(dev); - int pp_on_reg, pp_off_reg, pp_div_reg = 0, pp_ctrl_reg; + i915_reg_t pp_on_reg, pp_off_reg, pp_div_reg, pp_ctrl_reg; enum port port = dp_to_dig_port(intel_dp)->port; const struct edp_power_seq *seq = &intel_dp->pps_delays; @@ -5490,7 +5312,7 @@ intel_dp_init_panel_power_sequencer_registers(struct drm_device *dev, /* Haswell doesn't have any port selection bits for the panel * power sequencer any more. */ - if (IS_VALLEYVIEW(dev)) { + if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { port_sel = PANEL_PORT_SELECT_VLV(port); } else if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) { if (port == PORT_A) @@ -5597,17 +5419,17 @@ static void intel_dp_set_drrs_state(struct drm_device *dev, int refresh_rate) DRM_ERROR("Unsupported refreshrate type\n"); } } else if (INTEL_INFO(dev)->gen > 6) { - u32 reg = PIPECONF(intel_crtc->config->cpu_transcoder); + i915_reg_t reg = PIPECONF(intel_crtc->config->cpu_transcoder); u32 val; val = I915_READ(reg); if (index > DRRS_HIGH_RR) { - if (IS_VALLEYVIEW(dev)) + if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) val |= PIPECONF_EDP_RR_MODE_SWITCH_VLV; else val |= PIPECONF_EDP_RR_MODE_SWITCH; } else { - if (IS_VALLEYVIEW(dev)) + if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) val &= ~PIPECONF_EDP_RR_MODE_SWITCH_VLV; else val &= ~PIPECONF_EDP_RR_MODE_SWITCH; @@ -5974,7 +5796,7 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp, } mutex_unlock(&dev->mode_config.mutex); - if (IS_VALLEYVIEW(dev)) { + if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { intel_dp->edp_notifier.notifier_call = edp_notify_handler; register_reboot_notifier(&intel_dp->edp_notifier); @@ -6015,14 +5837,14 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port, struct drm_device *dev = intel_encoder->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; enum port port = intel_dig_port->port; - int type; + int type, ret; intel_dp->pps_pipe = INVALID_PIPE; /* intel_dp vfuncs */ if (INTEL_INFO(dev)->gen >= 9) intel_dp->get_aux_clock_divider = skl_get_aux_clock_divider; - else if (IS_VALLEYVIEW(dev)) + else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) intel_dp->get_aux_clock_divider = vlv_get_aux_clock_divider; else if (IS_HASWELL(dev) || IS_BROADWELL(dev)) intel_dp->get_aux_clock_divider = hsw_get_aux_clock_divider; @@ -6036,6 +5858,9 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port, else intel_dp->get_aux_send_ctl = i9xx_get_aux_send_ctl; + if (HAS_DDI(dev)) + intel_dp->prepare_link_retrain = intel_ddi_prepare_link_retrain; + /* Preserve the current hw state. */ intel_dp->DP = I915_READ(intel_dp->output_reg); intel_dp->attached_connector = intel_connector; @@ -6054,8 +5879,8 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port, intel_encoder->type = INTEL_OUTPUT_EDP; /* eDP only on port B and/or C on vlv/chv */ - if (WARN_ON(IS_VALLEYVIEW(dev) && is_edp(intel_dp) && - port != PORT_B && port != PORT_C)) + if (WARN_ON((IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) && + is_edp(intel_dp) && port != PORT_B && port != PORT_C)) return false; DRM_DEBUG_KMS("Adding %s connector on port %c\n", @@ -6087,7 +5912,7 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port, break; case PORT_B: intel_encoder->hpd_pin = HPD_PORT_B; - if (IS_BROXTON(dev_priv) && (INTEL_REVID(dev) < BXT_REVID_B0)) + if (IS_BXT_REVID(dev, 0, BXT_REVID_A1)) intel_encoder->hpd_pin = HPD_PORT_A; break; case PORT_C: @@ -6106,14 +5931,16 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port, if (is_edp(intel_dp)) { pps_lock(intel_dp); intel_dp_init_panel_power_timestamps(intel_dp); - if (IS_VALLEYVIEW(dev)) + if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) vlv_initial_power_sequencer_setup(intel_dp); else intel_dp_init_panel_power_sequencer(dev, intel_dp); pps_unlock(intel_dp); } - intel_dp_aux_init(intel_dp, intel_connector); + ret = intel_dp_aux_init(intel_dp, intel_connector); + if (ret) + goto fail; /* init MST on ports that can support it */ if (HAS_DP_MST(dev) && @@ -6122,20 +5949,9 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port, intel_connector->base.base.id); if (!intel_edp_init_connector(intel_dp, intel_connector)) { - drm_dp_aux_unregister(&intel_dp->aux); - if (is_edp(intel_dp)) { - cancel_delayed_work_sync(&intel_dp->panel_vdd_work); - /* - * vdd might still be enabled do to the delayed vdd off. - * Make sure vdd is actually turned off here. - */ - pps_lock(intel_dp); - edp_panel_vdd_off_sync(intel_dp); - pps_unlock(intel_dp); - } - drm_connector_unregister(connector); - drm_connector_cleanup(connector); - return false; + intel_dp_aux_fini(intel_dp); + intel_dp_mst_encoder_cleanup(intel_dig_port); + goto fail; } intel_dp_add_properties(intel_dp, connector); @@ -6152,10 +5968,27 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port, i915_debugfs_connector_add(connector); return true; + +fail: + if (is_edp(intel_dp)) { + cancel_delayed_work_sync(&intel_dp->panel_vdd_work); + /* + * vdd might still be enabled do to the delayed vdd off. + * Make sure vdd is actually turned off here. + */ + pps_lock(intel_dp); + edp_panel_vdd_off_sync(intel_dp); + pps_unlock(intel_dp); + } + drm_connector_unregister(connector); + drm_connector_cleanup(connector); + + return false; } void -intel_dp_init(struct drm_device *dev, int output_reg, enum port port) +intel_dp_init(struct drm_device *dev, + i915_reg_t output_reg, enum port port) { struct drm_i915_private *dev_priv = dev->dev_private; struct intel_digital_port *intel_dig_port; @@ -6174,8 +6007,9 @@ intel_dp_init(struct drm_device *dev, int output_reg, enum port port) intel_encoder = &intel_dig_port->base; encoder = &intel_encoder->base; - drm_encoder_init(dev, &intel_encoder->base, &intel_dp_enc_funcs, - DRM_MODE_ENCODER_TMDS); + if (drm_encoder_init(dev, &intel_encoder->base, &intel_dp_enc_funcs, + DRM_MODE_ENCODER_TMDS, NULL)) + goto err_encoder_init; intel_encoder->compute_config = intel_dp_compute_config; intel_encoder->disable = intel_disable_dp; @@ -6201,6 +6035,7 @@ intel_dp_init(struct drm_device *dev, int output_reg, enum port port) } intel_dig_port->port = port; + dev_priv->dig_port_map[port] = intel_encoder; intel_dig_port->dp.output_reg = output_reg; intel_encoder->type = INTEL_OUTPUT_DISPLAYPORT; @@ -6224,6 +6059,7 @@ intel_dp_init(struct drm_device *dev, int output_reg, enum port port) err_init_connector: drm_encoder_cleanup(encoder); +err_encoder_init: kfree(intel_connector); err_connector_alloc: kfree(intel_dig_port); |