Commit 21821272 authored by Dave Airlie's avatar Dave Airlie
Browse files

Merge tag 'drm-intel-fixes-2014-03-17' of git://anongit.freedesktop.org/drm-intel into drm-fixes 

Two 3.14 specific fixes, two cc: stable.

* tag 'drm-intel-fixes-2014-03-17' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: Don't enable display error interrupts from the start
  drm/i915: Fix scanline counter fixup on BDW
  drm/i915: Add a workaround for HSW scanline counter weirdness
  drm/i915: Fix PSR programming
parents dcb99fd9 5c673b60

drivers/gpu/drm/i915/i915_irq.c

+41 −30
Original line number Diff line number Diff line
@@ -618,33 +618,25 @@ static u32 gm45_get_vblank_counter(struct drm_device *dev, int pipe) 


/* raw reads, only for fast reads of display block, no need for forcewake etc. */

#define __raw_i915_read32(dev_priv__, reg__) readl((dev_priv__)->regs + (reg__))

#define __raw_i915_read16(dev_priv__, reg__) readw((dev_priv__)->regs + (reg__))



static bool ilk_pipe_in_vblank_locked(struct drm_device *dev, enum pipe pipe)

{

	struct drm_i915_private *dev_priv = dev->dev_private;

	uint32_t status;



	if (INTEL_INFO(dev)->gen < 7) {

		status = pipe == PIPE_A ?

			DE_PIPEA_VBLANK :

			DE_PIPEB_VBLANK;

	int reg;



	if (INTEL_INFO(dev)->gen >= 8) {

		status = GEN8_PIPE_VBLANK;

		reg = GEN8_DE_PIPE_ISR(pipe);

	} else if (INTEL_INFO(dev)->gen >= 7) {

		status = DE_PIPE_VBLANK_IVB(pipe);

		reg = DEISR;

	} else {

		switch (pipe) {

		default:

		case PIPE_A:

			status = DE_PIPEA_VBLANK_IVB;

			break;

		case PIPE_B:

			status = DE_PIPEB_VBLANK_IVB;

			break;

		case PIPE_C:

			status = DE_PIPEC_VBLANK_IVB;

			break;

		}

		status = DE_PIPE_VBLANK(pipe);

		reg = DEISR;

	}



	return __raw_i915_read32(dev_priv, DEISR) & status;

	return __raw_i915_read32(dev_priv, reg) & status;

}



static int i915_get_crtc_scanoutpos(struct drm_device *dev, int pipe,
@@ -702,7 +694,28 @@ static int i915_get_crtc_scanoutpos(struct drm_device *dev, int pipe, 
		else

			position = __raw_i915_read32(dev_priv, PIPEDSL(pipe)) & DSL_LINEMASK_GEN3;



		if (HAS_PCH_SPLIT(dev)) {

		if (HAS_DDI(dev)) {

			/*

			 * On HSW HDMI outputs there seems to be a 2 line

			 * difference, whereas eDP has the normal 1 line

			 * difference that earlier platforms have. External

			 * DP is unknown. For now just check for the 2 line

			 * difference case on all output types on HSW+.

			 *

			 * This might misinterpret the scanline counter being

			 * one line too far along on eDP, but that's less

			 * dangerous than the alternative since that would lead

			 * the vblank timestamp code astray when it sees a

			 * scanline count before vblank_start during a vblank

			 * interrupt.

			 */

			in_vbl = ilk_pipe_in_vblank_locked(dev, pipe);

			if ((in_vbl && (position == vbl_start - 2 ||

					position == vbl_start - 1)) ||

			    (!in_vbl && (position == vbl_end - 2 ||

					 position == vbl_end - 1)))

				position = (position + 2) % vtotal;

		} else if (HAS_PCH_SPLIT(dev)) {

			/*

			 * The scanline counter increments at the leading edge

			 * of hsync, ie. it completely misses the active portion
@@ -2769,10 +2782,9 @@ static void ibx_irq_postinstall(struct drm_device *dev) 
		return;



	if (HAS_PCH_IBX(dev)) {

		mask = SDE_GMBUS | SDE_AUX_MASK | SDE_TRANSB_FIFO_UNDER |

		       SDE_TRANSA_FIFO_UNDER | SDE_POISON;

		mask = SDE_GMBUS | SDE_AUX_MASK | SDE_POISON;

	} else {

		mask = SDE_GMBUS_CPT | SDE_AUX_MASK_CPT | SDE_ERROR_CPT;

		mask = SDE_GMBUS_CPT | SDE_AUX_MASK_CPT;



		I915_WRITE(SERR_INT, I915_READ(SERR_INT));

	}
@@ -2832,20 +2844,19 @@ static int ironlake_irq_postinstall(struct drm_device *dev) 
		display_mask = (DE_MASTER_IRQ_CONTROL | DE_GSE_IVB |

				DE_PCH_EVENT_IVB | DE_PLANEC_FLIP_DONE_IVB |

				DE_PLANEB_FLIP_DONE_IVB |

				DE_PLANEA_FLIP_DONE_IVB | DE_AUX_CHANNEL_A_IVB |

				DE_ERR_INT_IVB);

				DE_PLANEA_FLIP_DONE_IVB | DE_AUX_CHANNEL_A_IVB);

		extra_mask = (DE_PIPEC_VBLANK_IVB | DE_PIPEB_VBLANK_IVB |

			      DE_PIPEA_VBLANK_IVB);

			      DE_PIPEA_VBLANK_IVB | DE_ERR_INT_IVB);



		I915_WRITE(GEN7_ERR_INT, I915_READ(GEN7_ERR_INT));

	} else {

		display_mask = (DE_MASTER_IRQ_CONTROL | DE_GSE | DE_PCH_EVENT |

				DE_PLANEA_FLIP_DONE | DE_PLANEB_FLIP_DONE |

				DE_AUX_CHANNEL_A |

				DE_PIPEB_FIFO_UNDERRUN | DE_PIPEA_FIFO_UNDERRUN |

				DE_PIPEB_CRC_DONE | DE_PIPEA_CRC_DONE |

				DE_POISON);

		extra_mask = DE_PIPEA_VBLANK | DE_PIPEB_VBLANK | DE_PCU_EVENT;

		extra_mask = DE_PIPEA_VBLANK | DE_PIPEB_VBLANK | DE_PCU_EVENT |

				DE_PIPEB_FIFO_UNDERRUN | DE_PIPEA_FIFO_UNDERRUN;

	}



	dev_priv->irq_mask = ~display_mask;
@@ -2961,9 +2972,9 @@ static void gen8_de_irq_postinstall(struct drm_i915_private *dev_priv) 
	struct drm_device *dev = dev_priv->dev;

	uint32_t de_pipe_masked = GEN8_PIPE_FLIP_DONE |

		GEN8_PIPE_CDCLK_CRC_DONE |

		GEN8_PIPE_FIFO_UNDERRUN |

		GEN8_DE_PIPE_IRQ_FAULT_ERRORS;

	uint32_t de_pipe_enables = de_pipe_masked | GEN8_PIPE_VBLANK;

	uint32_t de_pipe_enables = de_pipe_masked | GEN8_PIPE_VBLANK |

		GEN8_PIPE_FIFO_UNDERRUN;

	int pipe;

	dev_priv->de_irq_mask[PIPE_A] = ~de_pipe_masked;

	dev_priv->de_irq_mask[PIPE_B] = ~de_pipe_masked;

drivers/gpu/drm/i915/intel_dp.c

+1 −1
Original line number Diff line number Diff line
@@ -1639,7 +1639,7 @@ static void intel_edp_psr_enable_source(struct intel_dp *intel_dp) 
		val |= EDP_PSR_LINK_DISABLE;



	I915_WRITE(EDP_PSR_CTL(dev), val |

		   IS_BROADWELL(dev) ? 0 : link_entry_time |

		   (IS_BROADWELL(dev) ? 0 : link_entry_time) |

		   max_sleep_time << EDP_PSR_MAX_SLEEP_TIME_SHIFT |

		   idle_frames << EDP_PSR_IDLE_FRAME_SHIFT |

		   EDP_PSR_ENABLE);

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