}
intel_update_fbc(dev);
+ intel_edp_psr_update(dev);
mutex_unlock(&dev->struct_mutex);
intel_crtc_update_sarea_pos(crtc, x, y);
BUG_ON(val != final);
}
-/*
- * Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O.
- * WaMPhyProgramming:hsw
- */
-static void lpt_init_pch_refclk(struct drm_device *dev)
+static void lpt_reset_fdi_mphy(struct drm_i915_private *dev_priv)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct drm_mode_config *mode_config = &dev->mode_config;
- struct intel_encoder *encoder;
- bool has_vga = false;
- bool is_sdv = false;
- u32 tmp;
-
- list_for_each_entry(encoder, &mode_config->encoder_list, base.head) {
- switch (encoder->type) {
- case INTEL_OUTPUT_ANALOG:
- has_vga = true;
- break;
- }
- }
-
- if (!has_vga)
- return;
-
- mutex_lock(&dev_priv->dpio_lock);
-
- /* XXX: Rip out SDV support once Haswell ships for real. */
- if (IS_HASWELL(dev) && (dev->pci_device & 0xFF00) == 0x0C00)
- is_sdv = true;
-
- tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
- tmp &= ~SBI_SSCCTL_DISABLE;
- tmp |= SBI_SSCCTL_PATHALT;
- intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
-
- udelay(24);
+ uint32_t tmp;
- tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
- tmp &= ~SBI_SSCCTL_PATHALT;
- intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
+ tmp = I915_READ(SOUTH_CHICKEN2);
+ tmp |= FDI_MPHY_IOSFSB_RESET_CTL;
+ I915_WRITE(SOUTH_CHICKEN2, tmp);
- if (!is_sdv) {
- tmp = I915_READ(SOUTH_CHICKEN2);
- tmp |= FDI_MPHY_IOSFSB_RESET_CTL;
- I915_WRITE(SOUTH_CHICKEN2, tmp);
+ if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2) &
+ FDI_MPHY_IOSFSB_RESET_STATUS, 100))
+ DRM_ERROR("FDI mPHY reset assert timeout\n");
- if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2) &
- FDI_MPHY_IOSFSB_RESET_STATUS, 100))
- DRM_ERROR("FDI mPHY reset assert timeout\n");
+ tmp = I915_READ(SOUTH_CHICKEN2);
+ tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL;
+ I915_WRITE(SOUTH_CHICKEN2, tmp);
- tmp = I915_READ(SOUTH_CHICKEN2);
- tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL;
- I915_WRITE(SOUTH_CHICKEN2, tmp);
+ if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2) &
+ FDI_MPHY_IOSFSB_RESET_STATUS) == 0, 100))
+ DRM_ERROR("FDI mPHY reset de-assert timeout\n");
+}
- if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2) &
- FDI_MPHY_IOSFSB_RESET_STATUS) == 0,
- 100))
- DRM_ERROR("FDI mPHY reset de-assert timeout\n");
- }
+/* WaMPhyProgramming:hsw */
+static void lpt_program_fdi_mphy(struct drm_i915_private *dev_priv)
+{
+ uint32_t tmp;
tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY);
tmp &= ~(0xFF << 24);
tmp |= (0x12 << 24);
intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY);
- if (is_sdv) {
- tmp = intel_sbi_read(dev_priv, 0x800C, SBI_MPHY);
- tmp |= 0x7FFF;
- intel_sbi_write(dev_priv, 0x800C, tmp, SBI_MPHY);
- }
-
tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY);
tmp |= (1 << 11);
intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY);
tmp |= (1 << 11);
intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY);
- if (is_sdv) {
- tmp = intel_sbi_read(dev_priv, 0x2038, SBI_MPHY);
- tmp |= (0x3F << 24) | (0xF << 20) | (0xF << 16);
- intel_sbi_write(dev_priv, 0x2038, tmp, SBI_MPHY);
-
- tmp = intel_sbi_read(dev_priv, 0x2138, SBI_MPHY);
- tmp |= (0x3F << 24) | (0xF << 20) | (0xF << 16);
- intel_sbi_write(dev_priv, 0x2138, tmp, SBI_MPHY);
-
- tmp = intel_sbi_read(dev_priv, 0x203C, SBI_MPHY);
- tmp |= (0x3F << 8);
- intel_sbi_write(dev_priv, 0x203C, tmp, SBI_MPHY);
-
- tmp = intel_sbi_read(dev_priv, 0x213C, SBI_MPHY);
- tmp |= (0x3F << 8);
- intel_sbi_write(dev_priv, 0x213C, tmp, SBI_MPHY);
- }
-
tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY);
tmp |= (1 << 24) | (1 << 21) | (1 << 18);
intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY);
tmp |= (1 << 24) | (1 << 21) | (1 << 18);
intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY);
- if (!is_sdv) {
- tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY);
- tmp &= ~(7 << 13);
- tmp |= (5 << 13);
- intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY);
+ tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY);
+ tmp &= ~(7 << 13);
+ tmp |= (5 << 13);
+ intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY);
- tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY);
- tmp &= ~(7 << 13);
- tmp |= (5 << 13);
- intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY);
- }
+ tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY);
+ tmp &= ~(7 << 13);
+ tmp |= (5 << 13);
+ intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY);
tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY);
tmp &= ~0xFF;
tmp |= (0x1C << 16);
intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY);
- if (!is_sdv) {
- tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY);
- tmp |= (1 << 27);
- intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY);
+ tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY);
+ tmp |= (1 << 27);
+ intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY);
+
+ tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY);
+ tmp |= (1 << 27);
+ intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY);
+
+ tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY);
+ tmp &= ~(0xF << 28);
+ tmp |= (4 << 28);
+ intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY);
+
+ tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY);
+ tmp &= ~(0xF << 28);
+ tmp |= (4 << 28);
+ intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY);
+}
+
+/* Implements 3 different sequences from BSpec chapter "Display iCLK
+ * Programming" based on the parameters passed:
+ * - Sequence to enable CLKOUT_DP
+ * - Sequence to enable CLKOUT_DP without spread
+ * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
+ */
+static void lpt_enable_clkout_dp(struct drm_device *dev, bool with_spread,
+ bool with_fdi)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ uint32_t reg, tmp;
+
+ if (WARN(with_fdi && !with_spread, "FDI requires downspread\n"))
+ with_spread = true;
+ if (WARN(dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE &&
+ with_fdi, "LP PCH doesn't have FDI\n"))
+ with_fdi = false;
+
+ mutex_lock(&dev_priv->dpio_lock);
+
+ tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
+ tmp &= ~SBI_SSCCTL_DISABLE;
+ tmp |= SBI_SSCCTL_PATHALT;
+ intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
- tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY);
- tmp |= (1 << 27);
- intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY);
+ udelay(24);
- tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY);
- tmp &= ~(0xF << 28);
- tmp |= (4 << 28);
- intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY);
+ if (with_spread) {
+ tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
+ tmp &= ~SBI_SSCCTL_PATHALT;
+ intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
- tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY);
- tmp &= ~(0xF << 28);
- tmp |= (4 << 28);
- intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY);
+ if (with_fdi) {
+ lpt_reset_fdi_mphy(dev_priv);
+ lpt_program_fdi_mphy(dev_priv);
+ }
}
- /* ULT uses SBI_GEN0, but ULT doesn't have VGA, so we don't care. */
- tmp = intel_sbi_read(dev_priv, SBI_DBUFF0, SBI_ICLK);
- tmp |= SBI_DBUFF0_ENABLE;
- intel_sbi_write(dev_priv, SBI_DBUFF0, tmp, SBI_ICLK);
+ reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ?
+ SBI_GEN0 : SBI_DBUFF0;
+ tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
+ tmp |= SBI_GEN0_CFG_BUFFENABLE_DISABLE;
+ intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
+
+ mutex_unlock(&dev_priv->dpio_lock);
+}
+
+/* Sequence to disable CLKOUT_DP */
+static void lpt_disable_clkout_dp(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ uint32_t reg, tmp;
+
+ mutex_lock(&dev_priv->dpio_lock);
+
+ reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ?
+ SBI_GEN0 : SBI_DBUFF0;
+ tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
+ tmp &= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE;
+ intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
+
+ tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
+ if (!(tmp & SBI_SSCCTL_DISABLE)) {
+ if (!(tmp & SBI_SSCCTL_PATHALT)) {
+ tmp |= SBI_SSCCTL_PATHALT;
+ intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
+ udelay(32);
+ }
+ tmp |= SBI_SSCCTL_DISABLE;
+ intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
+ }
mutex_unlock(&dev_priv->dpio_lock);
}
+static void lpt_init_pch_refclk(struct drm_device *dev)
+{
+ struct drm_mode_config *mode_config = &dev->mode_config;
+ struct intel_encoder *encoder;
+ bool has_vga = false;
+
+ list_for_each_entry(encoder, &mode_config->encoder_list, base.head) {
+ switch (encoder->type) {
+ case INTEL_OUTPUT_ANALOG:
+ has_vga = true;
+ break;
+ }
+ }
+
+ if (has_vga)
+ lpt_enable_clkout_dp(dev, true, true);
+ else
+ lpt_disable_clkout_dp(dev);
+}
+
/*
* Initialize reference clocks when the driver loads
*/
return true;
}
+static void assert_can_disable_lcpll(struct drm_i915_private *dev_priv)
+{
+ struct drm_device *dev = dev_priv->dev;
+ struct intel_ddi_plls *plls = &dev_priv->ddi_plls;
+ struct intel_crtc *crtc;
+ unsigned long irqflags;
+ uint32_t val, pch_hpd_mask;
+
+ pch_hpd_mask = SDE_PORTB_HOTPLUG_CPT | SDE_PORTC_HOTPLUG_CPT;
+ if (!(dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE))
+ pch_hpd_mask |= SDE_PORTD_HOTPLUG_CPT | SDE_CRT_HOTPLUG_CPT;
+
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head)
+ WARN(crtc->base.enabled, "CRTC for pipe %c enabled\n",
+ pipe_name(crtc->pipe));
+
+ WARN(I915_READ(HSW_PWR_WELL_DRIVER), "Power well on\n");
+ WARN(plls->spll_refcount, "SPLL enabled\n");
+ WARN(plls->wrpll1_refcount, "WRPLL1 enabled\n");
+ WARN(plls->wrpll2_refcount, "WRPLL2 enabled\n");
+ WARN(I915_READ(PCH_PP_STATUS) & PP_ON, "Panel power on\n");
+ WARN(I915_READ(BLC_PWM_CPU_CTL2) & BLM_PWM_ENABLE,
+ "CPU PWM1 enabled\n");
+ WARN(I915_READ(HSW_BLC_PWM2_CTL) & BLM_PWM_ENABLE,
+ "CPU PWM2 enabled\n");
+ WARN(I915_READ(BLC_PWM_PCH_CTL1) & BLM_PCH_PWM_ENABLE,
+ "PCH PWM1 enabled\n");
+ WARN(I915_READ(UTIL_PIN_CTL) & UTIL_PIN_ENABLE,
+ "Utility pin enabled\n");
+ WARN(I915_READ(PCH_GTC_CTL) & PCH_GTC_ENABLE, "PCH GTC enabled\n");
+
+ spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
+ val = I915_READ(DEIMR);
+ WARN((val & ~DE_PCH_EVENT_IVB) != val,
+ "Unexpected DEIMR bits enabled: 0x%x\n", val);
+ val = I915_READ(SDEIMR);
+ WARN((val & ~pch_hpd_mask) != val,
+ "Unexpected SDEIMR bits enabled: 0x%x\n", val);
+ spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
+}
+
+/*
+ * This function implements pieces of two sequences from BSpec:
+ * - Sequence for display software to disable LCPLL
+ * - Sequence for display software to allow package C8+
+ * The steps implemented here are just the steps that actually touch the LCPLL
+ * register. Callers should take care of disabling all the display engine
+ * functions, doing the mode unset, fixing interrupts, etc.
+ */
+void hsw_disable_lcpll(struct drm_i915_private *dev_priv,
+ bool switch_to_fclk, bool allow_power_down)
+{
+ uint32_t val;
+
+ assert_can_disable_lcpll(dev_priv);
+
+ val = I915_READ(LCPLL_CTL);
+
+ if (switch_to_fclk) {
+ val |= LCPLL_CD_SOURCE_FCLK;
+ I915_WRITE(LCPLL_CTL, val);
+
+ if (wait_for_atomic_us(I915_READ(LCPLL_CTL) &
+ LCPLL_CD_SOURCE_FCLK_DONE, 1))
+ DRM_ERROR("Switching to FCLK failed\n");
+
+ val = I915_READ(LCPLL_CTL);
+ }
+
+ val |= LCPLL_PLL_DISABLE;
+ I915_WRITE(LCPLL_CTL, val);
+ POSTING_READ(LCPLL_CTL);
+
+ if (wait_for((I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK) == 0, 1))
+ DRM_ERROR("LCPLL still locked\n");
+
+ val = I915_READ(D_COMP);
+ val |= D_COMP_COMP_DISABLE;
+ I915_WRITE(D_COMP, val);
+ POSTING_READ(D_COMP);
+ ndelay(100);
+
+ if (wait_for((I915_READ(D_COMP) & D_COMP_RCOMP_IN_PROGRESS) == 0, 1))
+ DRM_ERROR("D_COMP RCOMP still in progress\n");
+
+ if (allow_power_down) {
+ val = I915_READ(LCPLL_CTL);
+ val |= LCPLL_POWER_DOWN_ALLOW;
+ I915_WRITE(LCPLL_CTL, val);
+ POSTING_READ(LCPLL_CTL);
+ }
+}
+
+/*
+ * Fully restores LCPLL, disallowing power down and switching back to LCPLL
+ * source.
+ */
+void hsw_restore_lcpll(struct drm_i915_private *dev_priv)
+{
+ uint32_t val;
+
+ val = I915_READ(LCPLL_CTL);
+
+ if ((val & (LCPLL_PLL_LOCK | LCPLL_PLL_DISABLE | LCPLL_CD_SOURCE_FCLK |
+ LCPLL_POWER_DOWN_ALLOW)) == LCPLL_PLL_LOCK)
+ return;
+
+ if (val & LCPLL_POWER_DOWN_ALLOW) {
+ val &= ~LCPLL_POWER_DOWN_ALLOW;
+ I915_WRITE(LCPLL_CTL, val);
+ }
+
+ val = I915_READ(D_COMP);
+ val |= D_COMP_COMP_FORCE;
+ val &= ~D_COMP_COMP_DISABLE;
+ I915_WRITE(D_COMP, val);
+ I915_READ(D_COMP);
+
+ val = I915_READ(LCPLL_CTL);
+ val &= ~LCPLL_PLL_DISABLE;
+ I915_WRITE(LCPLL_CTL, val);
+
+ if (wait_for(I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK, 5))
+ DRM_ERROR("LCPLL not locked yet\n");
+
+ if (val & LCPLL_CD_SOURCE_FCLK) {
+ val = I915_READ(LCPLL_CTL);
+ val &= ~LCPLL_CD_SOURCE_FCLK;
+ I915_WRITE(LCPLL_CTL, val);
+
+ if (wait_for_atomic_us((I915_READ(LCPLL_CTL) &
+ LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1))
+ DRM_ERROR("Switching back to LCPLL failed\n");
+ }
+}
+
static void haswell_modeset_global_resources(struct drm_device *dev)
{
bool enable = false;
projects / cascardo / linux.git / blobdiff