diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ddi.c')
-rw-r--r-- | drivers/gpu/drm/i915/intel_ddi.c | 271 |
1 files changed, 223 insertions, 48 deletions
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index b53fff84a7d..330077bcd0b 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -42,7 +42,6 @@ static const u32 hsw_ddi_translations_dp[] = { 0x80C30FFF, 0x000B0000, 0x00FFFFFF, 0x00040006, 0x80D75FFF, 0x000B0000, - 0x00FFFFFF, 0x00040006 /* HDMI parameters */ }; static const u32 hsw_ddi_translations_fdi[] = { @@ -55,10 +54,64 @@ static const u32 hsw_ddi_translations_fdi[] = { 0x00C30FFF, 0x001E0000, 0x00FFFFFF, 0x00060006, 0x00D75FFF, 0x001E0000, - 0x00FFFFFF, 0x00040006 /* HDMI parameters */ }; -static enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder) +static const u32 hsw_ddi_translations_hdmi[] = { + /* Idx NT mV diff T mV diff db */ + 0x00FFFFFF, 0x0006000E, /* 0: 400 400 0 */ + 0x00E79FFF, 0x000E000C, /* 1: 400 500 2 */ + 0x00D75FFF, 0x0005000A, /* 2: 400 600 3.5 */ + 0x00FFFFFF, 0x0005000A, /* 3: 600 600 0 */ + 0x00E79FFF, 0x001D0007, /* 4: 600 750 2 */ + 0x00D75FFF, 0x000C0004, /* 5: 600 900 3.5 */ + 0x00FFFFFF, 0x00040006, /* 6: 800 800 0 */ + 0x80E79FFF, 0x00030002, /* 7: 800 1000 2 */ + 0x00FFFFFF, 0x00140005, /* 8: 850 850 0 */ + 0x00FFFFFF, 0x000C0004, /* 9: 900 900 0 */ + 0x00FFFFFF, 0x001C0003, /* 10: 950 950 0 */ + 0x80FFFFFF, 0x00030002, /* 11: 1000 1000 0 */ +}; + +static const u32 bdw_ddi_translations_edp[] = { + 0x00FFFFFF, 0x00000012, /* DP parameters */ + 0x00EBAFFF, 0x00020011, + 0x00C71FFF, 0x0006000F, + 0x00FFFFFF, 0x00020011, + 0x00DB6FFF, 0x0005000F, + 0x00BEEFFF, 0x000A000C, + 0x00FFFFFF, 0x0005000F, + 0x00DB6FFF, 0x000A000C, + 0x00FFFFFF, 0x000A000C, + 0x00FFFFFF, 0x00140006 /* HDMI parameters 800mV 0dB*/ +}; + +static const u32 bdw_ddi_translations_dp[] = { + 0x00FFFFFF, 0x0007000E, /* DP parameters */ + 0x00D75FFF, 0x000E000A, + 0x00BEFFFF, 0x00140006, + 0x00FFFFFF, 0x000E000A, + 0x00D75FFF, 0x00180004, + 0x80CB2FFF, 0x001B0002, + 0x00F7DFFF, 0x00180004, + 0x80D75FFF, 0x001B0002, + 0x80FFFFFF, 0x001B0002, + 0x00FFFFFF, 0x00140006 /* HDMI parameters 800mV 0dB*/ +}; + +static const u32 bdw_ddi_translations_fdi[] = { + 0x00FFFFFF, 0x0001000E, /* FDI parameters */ + 0x00D75FFF, 0x0004000A, + 0x00C30FFF, 0x00070006, + 0x00AAAFFF, 0x000C0000, + 0x00FFFFFF, 0x0004000A, + 0x00D75FFF, 0x00090004, + 0x00C30FFF, 0x000C0000, + 0x00FFFFFF, 0x00070006, + 0x00D75FFF, 0x000C0000, + 0x00FFFFFF, 0x00140006 /* HDMI parameters 800mV 0dB*/ +}; + +enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder) { struct drm_encoder *encoder = &intel_encoder->base; int type = intel_encoder->type; @@ -78,8 +131,9 @@ static enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder) } } -/* On Haswell, DDI port buffers must be programmed with correct values - * in advance. The buffer values are different for FDI and DP modes, +/* + * Starting with Haswell, DDI port buffers must be programmed with correct + * values in advance. The buffer values are different for FDI and DP modes, * but the HDMI/DVI fields are shared among those. So we program the DDI * in either FDI or DP modes only, as HDMI connections will work with both * of those @@ -89,15 +143,58 @@ static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port) struct drm_i915_private *dev_priv = dev->dev_private; u32 reg; int i; - const u32 *ddi_translations = (port == PORT_E) ? - hsw_ddi_translations_fdi : - hsw_ddi_translations_dp; + int hdmi_level = dev_priv->vbt.ddi_port_info[port].hdmi_level_shift; + const u32 *ddi_translations_fdi; + const u32 *ddi_translations_dp; + const u32 *ddi_translations_edp; + const u32 *ddi_translations; + + if (IS_BROADWELL(dev)) { + ddi_translations_fdi = bdw_ddi_translations_fdi; + ddi_translations_dp = bdw_ddi_translations_dp; + ddi_translations_edp = bdw_ddi_translations_edp; + } else if (IS_HASWELL(dev)) { + ddi_translations_fdi = hsw_ddi_translations_fdi; + ddi_translations_dp = hsw_ddi_translations_dp; + ddi_translations_edp = hsw_ddi_translations_dp; + } else { + WARN(1, "ddi translation table missing\n"); + ddi_translations_edp = bdw_ddi_translations_dp; + ddi_translations_fdi = bdw_ddi_translations_fdi; + ddi_translations_dp = bdw_ddi_translations_dp; + } + + switch (port) { + case PORT_A: + ddi_translations = ddi_translations_edp; + break; + case PORT_B: + case PORT_C: + ddi_translations = ddi_translations_dp; + break; + case PORT_D: + if (intel_dpd_is_edp(dev)) + ddi_translations = ddi_translations_edp; + else + ddi_translations = ddi_translations_dp; + break; + case PORT_E: + ddi_translations = ddi_translations_fdi; + break; + default: + BUG(); + } for (i = 0, reg = DDI_BUF_TRANS(port); i < ARRAY_SIZE(hsw_ddi_translations_fdi); i++) { I915_WRITE(reg, ddi_translations[i]); reg += 4; } + /* Entry 9 is for HDMI: */ + for (i = 0; i < 2; i++) { + I915_WRITE(reg, hsw_ddi_translations_hdmi[hdmi_level * 2 + i]); + reg += 4; + } } /* Program DDI buffers translations for DP. By default, program ports A-D in DP @@ -296,9 +393,6 @@ static void intel_ddi_mode_set(struct intel_encoder *encoder) DRM_DEBUG_DRIVER("DP audio: write eld information\n"); intel_write_eld(&encoder->base, adjusted_mode); } - - intel_dp_init_link_config(intel_dp); - } else if (type == INTEL_OUTPUT_HDMI) { struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); @@ -739,7 +833,8 @@ void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc) struct intel_crtc *intel_crtc = to_intel_crtc(crtc); struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); struct drm_encoder *encoder = &intel_encoder->base; - struct drm_i915_private *dev_priv = crtc->dev->dev_private; + struct drm_device *dev = crtc->dev; + struct drm_i915_private *dev_priv = dev->dev_private; enum pipe pipe = intel_crtc->pipe; enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; enum port port = intel_ddi_get_encoder_port(intel_encoder); @@ -767,18 +862,19 @@ void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc) BUG(); } - if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) + if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_PVSYNC) temp |= TRANS_DDI_PVSYNC; - if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) + if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_PHSYNC) temp |= TRANS_DDI_PHSYNC; if (cpu_transcoder == TRANSCODER_EDP) { switch (pipe) { case PIPE_A: - /* Can only use the always-on power well for eDP when - * not using the panel fitter, and when not using motion - * blur mitigation (which we don't support). */ - if (intel_crtc->config.pch_pfit.enabled) + /* On Haswell, can only use the always-on power well for + * eDP when not using the panel fitter, and when not + * using motion blur mitigation (which we don't + * support). */ + if (IS_HASWELL(dev) && intel_crtc->config.pch_pfit.enabled) temp |= TRANS_DDI_EDP_INPUT_A_ONOFF; else temp |= TRANS_DDI_EDP_INPUT_A_ON; @@ -1139,18 +1235,29 @@ static void intel_disable_ddi(struct intel_encoder *intel_encoder) int intel_ddi_get_cdclk_freq(struct drm_i915_private *dev_priv) { + struct drm_device *dev = dev_priv->dev; uint32_t lcpll = I915_READ(LCPLL_CTL); + uint32_t freq = lcpll & LCPLL_CLK_FREQ_MASK; - if (lcpll & LCPLL_CD_SOURCE_FCLK) + if (lcpll & LCPLL_CD_SOURCE_FCLK) { return 800000; - else if (I915_READ(HSW_FUSE_STRAP) & HSW_CDCLK_LIMIT) + } else if (I915_READ(HSW_FUSE_STRAP) & HSW_CDCLK_LIMIT) { return 450000; - else if ((lcpll & LCPLL_CLK_FREQ_MASK) == LCPLL_CLK_FREQ_450) + } else if (freq == LCPLL_CLK_FREQ_450) { return 450000; - else if (IS_ULT(dev_priv->dev)) - return 337500; - else - return 540000; + } else if (IS_HASWELL(dev)) { + if (IS_ULT(dev)) + return 337500; + else + return 540000; + } else { + if (freq == LCPLL_CLK_FREQ_54O_BDW) + return 540000; + else if (freq == LCPLL_CLK_FREQ_337_5_BDW) + return 337500; + else + return 675000; + } } void intel_ddi_pll_init(struct drm_device *dev) @@ -1202,7 +1309,7 @@ void intel_ddi_prepare_link_retrain(struct drm_encoder *encoder) val = DP_TP_CTL_ENABLE | DP_TP_CTL_MODE_SST | DP_TP_CTL_LINK_TRAIN_PAT1 | DP_TP_CTL_SCRAMBLE_DISABLE; - if (intel_dp->link_configuration[1] & DP_LANE_COUNT_ENHANCED_FRAME_EN) + if (drm_dp_enhanced_frame_cap(intel_dp->dpcd)) val |= DP_TP_CTL_ENHANCED_FRAME_ENABLE; I915_WRITE(DP_TP_CTL(port), val); POSTING_READ(DP_TP_CTL(port)); @@ -1285,6 +1392,40 @@ void intel_ddi_get_config(struct intel_encoder *encoder, default: break; } + + switch (temp & TRANS_DDI_MODE_SELECT_MASK) { + case TRANS_DDI_MODE_SELECT_HDMI: + case TRANS_DDI_MODE_SELECT_DVI: + case TRANS_DDI_MODE_SELECT_FDI: + break; + case TRANS_DDI_MODE_SELECT_DP_SST: + case TRANS_DDI_MODE_SELECT_DP_MST: + pipe_config->has_dp_encoder = true; + intel_dp_get_m_n(intel_crtc, pipe_config); + break; + default: + break; + } + + if (encoder->type == INTEL_OUTPUT_EDP && dev_priv->vbt.edp_bpp && + pipe_config->pipe_bpp > dev_priv->vbt.edp_bpp) { + /* + * This is a big fat ugly hack. + * + * Some machines in UEFI boot mode provide us a VBT that has 18 + * bpp and 1.62 GHz link bandwidth for eDP, which for reasons + * unknown we fail to light up. Yet the same BIOS boots up with + * 24 bpp and 2.7 GHz link. Use the same bpp as the BIOS uses as + * max, not what it tells us to use. + * + * Note: This will still be broken if the eDP panel is not lit + * up by the BIOS, and thus we can't get the mode at module + * load. + */ + DRM_DEBUG_KMS("pipe has %d bpp for eDP panel, overriding BIOS-provided max %d bpp\n", + pipe_config->pipe_bpp, dev_priv->vbt.edp_bpp); + dev_priv->vbt.edp_bpp = pipe_config->pipe_bpp; + } } static void intel_ddi_destroy(struct drm_encoder *encoder) @@ -1314,6 +1455,41 @@ static const struct drm_encoder_funcs intel_ddi_funcs = { .destroy = intel_ddi_destroy, }; +static struct intel_connector * +intel_ddi_init_dp_connector(struct intel_digital_port *intel_dig_port) +{ + struct intel_connector *connector; + enum port port = intel_dig_port->port; + + connector = kzalloc(sizeof(*connector), GFP_KERNEL); + if (!connector) + return NULL; + + intel_dig_port->dp.output_reg = DDI_BUF_CTL(port); + if (!intel_dp_init_connector(intel_dig_port, connector)) { + kfree(connector); + return NULL; + } + + return connector; +} + +static struct intel_connector * +intel_ddi_init_hdmi_connector(struct intel_digital_port *intel_dig_port) +{ + struct intel_connector *connector; + enum port port = intel_dig_port->port; + + connector = kzalloc(sizeof(*connector), GFP_KERNEL); + if (!connector) + return NULL; + + intel_dig_port->hdmi.hdmi_reg = DDI_BUF_CTL(port); + intel_hdmi_init_connector(intel_dig_port, connector); + + return connector; +} + void intel_ddi_init(struct drm_device *dev, enum port port) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -1322,17 +1498,22 @@ void intel_ddi_init(struct drm_device *dev, enum port port) struct drm_encoder *encoder; struct intel_connector *hdmi_connector = NULL; struct intel_connector *dp_connector = NULL; + bool init_hdmi, init_dp; + + init_hdmi = (dev_priv->vbt.ddi_port_info[port].supports_dvi || + dev_priv->vbt.ddi_port_info[port].supports_hdmi); + init_dp = dev_priv->vbt.ddi_port_info[port].supports_dp; + if (!init_dp && !init_hdmi) { + DRM_DEBUG_KMS("VBT says port %c is not DVI/HDMI/DP compatible\n", + port_name(port)); + init_hdmi = true; + init_dp = true; + } - intel_dig_port = kzalloc(sizeof(struct intel_digital_port), GFP_KERNEL); + intel_dig_port = kzalloc(sizeof(*intel_dig_port), GFP_KERNEL); if (!intel_dig_port) return; - dp_connector = kzalloc(sizeof(struct intel_connector), GFP_KERNEL); - if (!dp_connector) { - kfree(intel_dig_port); - return; - } - intel_encoder = &intel_dig_port->base; encoder = &intel_encoder->base; @@ -1352,28 +1533,22 @@ void intel_ddi_init(struct drm_device *dev, enum port port) intel_dig_port->saved_port_bits = I915_READ(DDI_BUF_CTL(port)) & (DDI_BUF_PORT_REVERSAL | DDI_A_4_LANES); - intel_dig_port->dp.output_reg = DDI_BUF_CTL(port); intel_encoder->type = INTEL_OUTPUT_UNKNOWN; intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2); intel_encoder->cloneable = false; intel_encoder->hot_plug = intel_ddi_hot_plug; - if (!intel_dp_init_connector(intel_dig_port, dp_connector)) { - drm_encoder_cleanup(encoder); - kfree(intel_dig_port); - kfree(dp_connector); - return; - } + if (init_dp) + dp_connector = intel_ddi_init_dp_connector(intel_dig_port); - if (intel_encoder->type != INTEL_OUTPUT_EDP) { - hdmi_connector = kzalloc(sizeof(struct intel_connector), - GFP_KERNEL); - if (!hdmi_connector) { - return; - } + /* In theory we don't need the encoder->type check, but leave it just in + * case we have some really bad VBTs... */ + if (intel_encoder->type != INTEL_OUTPUT_EDP && init_hdmi) + hdmi_connector = intel_ddi_init_hdmi_connector(intel_dig_port); - intel_dig_port->hdmi.hdmi_reg = DDI_BUF_CTL(port); - intel_hdmi_init_connector(intel_dig_port, hdmi_connector); + if (!dp_connector && !hdmi_connector) { + drm_encoder_cleanup(encoder); + kfree(intel_dig_port); } } |