void mainboard_set_port_clk_dp(struct intel_dp *intel_dp) { u32 ddi_pll_sel = 0; switch (intel_dp->link_bw) { case DP_LINK_BW_1_62: ddi_pll_sel = PORT_CLK_SEL_LCPLL_810; break; case DP_LINK_BW_2_7: ddi_pll_sel = PORT_CLK_SEL_LCPLL_1350; break; case DP_LINK_BW_5_4: ddi_pll_sel = PORT_CLK_SEL_LCPLL_2700; break; default: printk(BIOS_ERR, "invalid link bw %d\n", intel_dp->link_bw); return; } gtt_write(PORT_CLK_SEL(intel_dp->port), ddi_pll_sel); }
static void emulate_monitor_status_change(struct intel_vgpu *vgpu) { struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; vgpu_vreg(vgpu, SDEISR) &= ~(SDE_PORTB_HOTPLUG_CPT | SDE_PORTC_HOTPLUG_CPT | SDE_PORTD_HOTPLUG_CPT); if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) { vgpu_vreg(vgpu, SDEISR) &= ~(SDE_PORTA_HOTPLUG_SPT | SDE_PORTE_HOTPLUG_SPT); vgpu_vreg(vgpu, SKL_FUSE_STATUS) |= SKL_FUSE_DOWNLOAD_STATUS | SKL_FUSE_PG_DIST_STATUS(SKL_PG0) | SKL_FUSE_PG_DIST_STATUS(SKL_PG1) | SKL_FUSE_PG_DIST_STATUS(SKL_PG2); vgpu_vreg(vgpu, LCPLL1_CTL) |= LCPLL_PLL_ENABLE | LCPLL_PLL_LOCK; vgpu_vreg(vgpu, LCPLL2_CTL) |= LCPLL_PLL_ENABLE; } if (intel_vgpu_has_monitor_on_port(vgpu, PORT_B)) { vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIB_DETECTED; vgpu_vreg(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) &= ~(TRANS_DDI_BPC_MASK | TRANS_DDI_MODE_SELECT_MASK | TRANS_DDI_PORT_MASK); vgpu_vreg(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) |= (TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST | (PORT_B << TRANS_DDI_PORT_SHIFT) | TRANS_DDI_FUNC_ENABLE); if (IS_BROADWELL(dev_priv)) { vgpu_vreg(vgpu, PORT_CLK_SEL(PORT_B)) &= ~PORT_CLK_SEL_MASK; vgpu_vreg(vgpu, PORT_CLK_SEL(PORT_B)) |= PORT_CLK_SEL_LCPLL_810; } vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_B)) |= DDI_BUF_CTL_ENABLE; vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_B)) &= ~DDI_BUF_IS_IDLE; vgpu_vreg(vgpu, SDEISR) |= SDE_PORTB_HOTPLUG_CPT; } if (intel_vgpu_has_monitor_on_port(vgpu, PORT_C)) { vgpu_vreg(vgpu, SDEISR) |= SDE_PORTC_HOTPLUG_CPT; vgpu_vreg(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) &= ~(TRANS_DDI_BPC_MASK | TRANS_DDI_MODE_SELECT_MASK | TRANS_DDI_PORT_MASK); vgpu_vreg(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) |= (TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST | (PORT_C << TRANS_DDI_PORT_SHIFT) | TRANS_DDI_FUNC_ENABLE); if (IS_BROADWELL(dev_priv)) { vgpu_vreg(vgpu, PORT_CLK_SEL(PORT_C)) &= ~PORT_CLK_SEL_MASK; vgpu_vreg(vgpu, PORT_CLK_SEL(PORT_C)) |= PORT_CLK_SEL_LCPLL_810; } vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_C)) |= DDI_BUF_CTL_ENABLE; vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_C)) &= ~DDI_BUF_IS_IDLE; vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIC_DETECTED; } if (intel_vgpu_has_monitor_on_port(vgpu, PORT_D)) { vgpu_vreg(vgpu, SDEISR) |= SDE_PORTD_HOTPLUG_CPT; vgpu_vreg(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) &= ~(TRANS_DDI_BPC_MASK | TRANS_DDI_MODE_SELECT_MASK | TRANS_DDI_PORT_MASK); vgpu_vreg(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) |= (TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST | (PORT_D << TRANS_DDI_PORT_SHIFT) | TRANS_DDI_FUNC_ENABLE); if (IS_BROADWELL(dev_priv)) { vgpu_vreg(vgpu, PORT_CLK_SEL(PORT_D)) &= ~PORT_CLK_SEL_MASK; vgpu_vreg(vgpu, PORT_CLK_SEL(PORT_D)) |= PORT_CLK_SEL_LCPLL_810; } vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_D)) |= DDI_BUF_CTL_ENABLE; vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_D)) &= ~DDI_BUF_IS_IDLE; vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDID_DETECTED; } if ((IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) && intel_vgpu_has_monitor_on_port(vgpu, PORT_E)) { vgpu_vreg(vgpu, SDEISR) |= SDE_PORTE_HOTPLUG_SPT; } if (intel_vgpu_has_monitor_on_port(vgpu, PORT_A)) { if (IS_BROADWELL(dev_priv)) vgpu_vreg(vgpu, GEN8_DE_PORT_ISR) |= GEN8_PORT_DP_A_HOTPLUG; else vgpu_vreg(vgpu, SDEISR) |= SDE_PORTA_HOTPLUG_SPT; vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_A)) |= DDI_INIT_DISPLAY_DETECTED; } /* Clear host CRT status, so guest couldn't detect this host CRT. */ if (IS_BROADWELL(dev_priv)) vgpu_vreg(vgpu, PCH_ADPA) &= ~ADPA_CRT_HOTPLUG_MONITOR_MASK; }
void hsw_fdi_link_train(struct drm_crtc *crtc) { struct drm_device *dev = crtc->dev; struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); u32 temp, i, rx_ctl_val; /* Set the FDI_RX_MISC pwrdn lanes and the 2 workarounds listed at the * mode set "sequence for CRT port" document: * - TP1 to TP2 time with the default value * - FDI delay to 90h * * WaFDIAutoLinkSetTimingOverrride:hsw */ I915_WRITE(_FDI_RXA_MISC, FDI_RX_PWRDN_LANE1_VAL(2) | FDI_RX_PWRDN_LANE0_VAL(2) | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); /* Enable the PCH Receiver FDI PLL */ rx_ctl_val = dev_priv->fdi_rx_config | FDI_RX_ENHANCE_FRAME_ENABLE | FDI_RX_PLL_ENABLE | FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes); I915_WRITE(_FDI_RXA_CTL, rx_ctl_val); POSTING_READ(_FDI_RXA_CTL); udelay(220); /* Switch from Rawclk to PCDclk */ rx_ctl_val |= FDI_PCDCLK; I915_WRITE(_FDI_RXA_CTL, rx_ctl_val); /* Configure Port Clock Select */ I915_WRITE(PORT_CLK_SEL(PORT_E), intel_crtc->ddi_pll_sel); /* Start the training iterating through available voltages and emphasis, * testing each value twice. */ for (i = 0; i < ARRAY_SIZE(hsw_ddi_buf_ctl_values) * 2; i++) { /* Configure DP_TP_CTL with auto-training */ I915_WRITE(DP_TP_CTL(PORT_E), DP_TP_CTL_FDI_AUTOTRAIN | DP_TP_CTL_ENHANCED_FRAME_ENABLE | DP_TP_CTL_LINK_TRAIN_PAT1 | DP_TP_CTL_ENABLE); /* Configure and enable DDI_BUF_CTL for DDI E with next voltage. * DDI E does not support port reversal, the functionality is * achieved on the PCH side in FDI_RX_CTL, so no need to set the * port reversal bit */ I915_WRITE(DDI_BUF_CTL(PORT_E), DDI_BUF_CTL_ENABLE | ((intel_crtc->config.fdi_lanes - 1) << 1) | hsw_ddi_buf_ctl_values[i / 2]); POSTING_READ(DDI_BUF_CTL(PORT_E)); udelay(600); /* Program PCH FDI Receiver TU */ I915_WRITE(_FDI_RXA_TUSIZE1, TU_SIZE(64)); /* Enable PCH FDI Receiver with auto-training */ rx_ctl_val |= FDI_RX_ENABLE | FDI_LINK_TRAIN_AUTO; I915_WRITE(_FDI_RXA_CTL, rx_ctl_val); POSTING_READ(_FDI_RXA_CTL); /* Wait for FDI receiver lane calibration */ udelay(30); /* Unset FDI_RX_MISC pwrdn lanes */ temp = I915_READ(_FDI_RXA_MISC); temp &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK); I915_WRITE(_FDI_RXA_MISC, temp); POSTING_READ(_FDI_RXA_MISC); /* Wait for FDI auto training time */ udelay(5); temp = I915_READ(DP_TP_STATUS(PORT_E)); if (temp & DP_TP_STATUS_AUTOTRAIN_DONE) { DRM_DEBUG_KMS("FDI link training done on step %d\n", i); /* Enable normal pixel sending for FDI */ I915_WRITE(DP_TP_CTL(PORT_E), DP_TP_CTL_FDI_AUTOTRAIN | DP_TP_CTL_LINK_TRAIN_NORMAL | DP_TP_CTL_ENHANCED_FRAME_ENABLE | DP_TP_CTL_ENABLE); return; } temp = I915_READ(DDI_BUF_CTL(PORT_E)); temp &= ~DDI_BUF_CTL_ENABLE; I915_WRITE(DDI_BUF_CTL(PORT_E), temp); POSTING_READ(DDI_BUF_CTL(PORT_E)); /* Disable DP_TP_CTL and FDI_RX_CTL and retry */ temp = I915_READ(DP_TP_CTL(PORT_E)); temp &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK); temp |= DP_TP_CTL_LINK_TRAIN_PAT1; I915_WRITE(DP_TP_CTL(PORT_E), temp); POSTING_READ(DP_TP_CTL(PORT_E)); intel_wait_ddi_buf_idle(dev_priv, PORT_E); rx_ctl_val &= ~FDI_RX_ENABLE; I915_WRITE(_FDI_RXA_CTL, rx_ctl_val); POSTING_READ(_FDI_RXA_CTL); /* Reset FDI_RX_MISC pwrdn lanes */ temp = I915_READ(_FDI_RXA_MISC); temp &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK); temp |= FDI_RX_PWRDN_LANE1_VAL(2) | FDI_RX_PWRDN_LANE0_VAL(2); I915_WRITE(_FDI_RXA_MISC, temp); POSTING_READ(_FDI_RXA_MISC); } DRM_ERROR("FDI link training failed!\n"); }
void intel_ddi_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { struct drm_device *dev = encoder->dev; struct drm_i915_private *dev_priv = dev->dev_private; struct drm_crtc *crtc = encoder->crtc; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); int port = intel_hdmi->ddi_port; int pipe = intel_crtc->pipe; int p, n2, r2, valid=0; u32 temp, i; /* On Haswell, we need to enable the clocks and prepare DDI function to * work in HDMI mode for this pipe. */ DRM_DEBUG_KMS("Preparing HDMI DDI mode for Haswell on port %c, pipe %c\n", port_name(port), pipe_name(pipe)); for (i=0; i < DRM_ARRAY_SIZE(wrpll_tmds_clock_table); i++) { if (crtc->mode.clock == wrpll_tmds_clock_table[i].clock) { p = wrpll_tmds_clock_table[i].p; n2 = wrpll_tmds_clock_table[i].n2; r2 = wrpll_tmds_clock_table[i].r2; DRM_DEBUG_KMS("WR PLL clock: found settings for %dKHz refresh rate: p=%d, n2=%d, r2=%d\n", crtc->mode.clock, p, n2, r2); valid = 1; break; } } if (!valid) { DRM_ERROR("Unable to find WR PLL clock settings for %dKHz refresh rate\n", crtc->mode.clock); return; } /* Enable LCPLL if disabled */ temp = I915_READ(LCPLL_CTL); if (temp & LCPLL_PLL_DISABLE) I915_WRITE(LCPLL_CTL, temp & ~LCPLL_PLL_DISABLE); /* Configure WR PLL 1, program the correct divider values for * the desired frequency and wait for warmup */ I915_WRITE(WRPLL_CTL1, WRPLL_PLL_ENABLE | WRPLL_PLL_SELECT_LCPLL_2700 | WRPLL_DIVIDER_REFERENCE(r2) | WRPLL_DIVIDER_FEEDBACK(n2) | WRPLL_DIVIDER_POST(p)); DELAY(20); /* Use WRPLL1 clock to drive the output to the port, and tell the pipe to use * this port for connection. */ I915_WRITE(PORT_CLK_SEL(port), PORT_CLK_SEL_WRPLL1); I915_WRITE(PIPE_CLK_SEL(pipe), PIPE_CLK_SEL_PORT(port)); DELAY(20); if (intel_hdmi->has_audio) { /* Proper support for digital audio needs a new logic and a new set * of registers, so we leave it for future patch bombing. */ DRM_DEBUG_DRIVER("HDMI audio on pipe %c not yet supported on DDI\n", pipe_name(intel_crtc->pipe)); } /* Enable PIPE_DDI_FUNC_CTL for the pipe to work in HDMI mode */ temp = I915_READ(DDI_FUNC_CTL(pipe)); temp &= ~PIPE_DDI_PORT_MASK; temp &= ~PIPE_DDI_BPC_12; temp |= PIPE_DDI_SELECT_PORT(port) | PIPE_DDI_MODE_SELECT_HDMI | ((intel_crtc->bpp > 24) ? PIPE_DDI_BPC_12 : PIPE_DDI_BPC_8) | PIPE_DDI_FUNC_ENABLE; I915_WRITE(DDI_FUNC_CTL(pipe), temp); intel_hdmi_set_avi_infoframe(encoder, adjusted_mode); intel_hdmi_set_spd_infoframe(encoder); }
void hsw_fdi_link_train(struct drm_crtc *crtc) { struct drm_device *dev = crtc->dev; struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); int pipe = intel_crtc->pipe; u32 reg, temp, i; /* Configure CPU PLL, wait for warmup */ I915_WRITE(SPLL_CTL, SPLL_PLL_ENABLE | SPLL_PLL_FREQ_1350MHz | SPLL_PLL_SCC); /* Use SPLL to drive the output when in FDI mode */ I915_WRITE(PORT_CLK_SEL(PORT_E), PORT_CLK_SEL_SPLL); I915_WRITE(PIPE_CLK_SEL(pipe), PIPE_CLK_SEL_PORT(PORT_E)); DELAY(20); /* Start the training iterating through available voltages and emphasis */ for (i=0; i < DRM_ARRAY_SIZE(hsw_ddi_buf_ctl_values); i++) { /* Configure DP_TP_CTL with auto-training */ I915_WRITE(DP_TP_CTL(PORT_E), DP_TP_CTL_FDI_AUTOTRAIN | DP_TP_CTL_ENHANCED_FRAME_ENABLE | DP_TP_CTL_LINK_TRAIN_PAT1 | DP_TP_CTL_ENABLE); /* Configure and enable DDI_BUF_CTL for DDI E with next voltage */ temp = I915_READ(DDI_BUF_CTL(PORT_E)); temp = (temp & ~DDI_BUF_EMP_MASK); I915_WRITE(DDI_BUF_CTL(PORT_E), temp | DDI_BUF_CTL_ENABLE | DDI_PORT_WIDTH_X2 | hsw_ddi_buf_ctl_values[i]); DELAY(600); /* Enable CPU FDI Receiver with auto-training */ reg = FDI_RX_CTL(pipe); I915_WRITE(reg, I915_READ(reg) | FDI_LINK_TRAIN_AUTO | FDI_RX_ENABLE | FDI_LINK_TRAIN_PATTERN_1_CPT | FDI_RX_ENHANCE_FRAME_ENABLE | FDI_PORT_WIDTH_2X_LPT | FDI_RX_PLL_ENABLE); POSTING_READ(reg); DELAY(100); temp = I915_READ(DP_TP_STATUS(PORT_E)); if (temp & DP_TP_STATUS_AUTOTRAIN_DONE) { DRM_DEBUG_DRIVER("BUF_CTL training done on %d step\n", i); /* Enable normal pixel sending for FDI */ I915_WRITE(DP_TP_CTL(PORT_E), DP_TP_CTL_FDI_AUTOTRAIN | DP_TP_CTL_LINK_TRAIN_NORMAL | DP_TP_CTL_ENHANCED_FRAME_ENABLE | DP_TP_CTL_ENABLE); /* Enable PIPE_DDI_FUNC_CTL for the pipe to work in FDI mode */ temp = I915_READ(DDI_FUNC_CTL(pipe)); temp &= ~PIPE_DDI_PORT_MASK; temp |= PIPE_DDI_SELECT_PORT(PORT_E) | PIPE_DDI_MODE_SELECT_FDI | PIPE_DDI_FUNC_ENABLE | PIPE_DDI_PORT_WIDTH_X2; I915_WRITE(DDI_FUNC_CTL(pipe), temp); break; } else { DRM_ERROR("Error training BUF_CTL %d\n", i); /* Disable DP_TP_CTL and FDI_RX_CTL) and retry */ I915_WRITE(DP_TP_CTL(PORT_E), I915_READ(DP_TP_CTL(PORT_E)) & ~DP_TP_CTL_ENABLE); I915_WRITE(FDI_RX_CTL(pipe), I915_READ(FDI_RX_CTL(pipe)) & ~FDI_RX_PLL_ENABLE); continue; } } DRM_DEBUG_KMS("FDI train done.\n"); }