Merge branch 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel into drm-next

Daniel writes:
"New stuff for -next. Highlights:
- prep patches for the modeset rework. Note that one of those patches
  touches the fb helper in the common drm code.
- hasw hdmi audio support (Wang Xingchao)
- improved instdone dumping for gen7 (Ben)
- unbound tracking and a few follow-up patches from Chris
- dma_buf->begin/end_cpu_access plus fix for drm/udl (Dave)
- improve mmio error reporting for hsw
- prep patch for WQ_NON_REENTRANT removal (Tejun Heo)
"

* 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel: (41 commits)
  drm/i915: Remove __GFP_NO_KSWAPD
  drm/i915: disable rc6 on ilk when vt-d is enabled
  drm/i915: Avoid unbinding due to an interrupted pin_and_fence during execbuffer
  drm/i915: Use new INSTDONE registers (Gen7+)
  drm/i915: Add new INSTDONE registers
  drm/i915: Extract reading INSTDONE
  drm/i915: Use a non-blocking wait for set-to-domain ioctl
  drm/i915: Juggle code order to ease flow of the next patch
  drm/i915: Use cpu relocations if the object is in the GTT but not mappable
  drm/i915: Extract general object init routine
  drm/i915: Protect private gem objects from truncate (such as imported dmabuf)
  drm/i915: Only pwrite through the GTT if there is space in the aperture
  i915: use alloc_ordered_workqueue() instead of explicit UNBOUND w/ max_active = 1
  drm/i915: Find unclaimed MMIO writes.
  drm/i915: Add ERR_INT to gen7 error state
  drm/i915: Cantiga+ cannot handle a hsync front porch of 0
  drm/i915: fix reassignment of variable "intel_dp->DP"
  drm/i915: Try harder to allocate an mmap_offset
  drm/i915: Show pin count in debugfs
  drm/i915: Show (count, size) of purgeable objects in i915_gem_objects
  ...

drivers/gpu/drm/drm_fb_helper.c

@@ -1230,7 +1230,6 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper)
 	struct drm_device *dev = fb_helper->dev;
 	struct drm_fb_helper_crtc **crtcs;
 	struct drm_display_mode **modes;
-	struct drm_encoder *encoder;
 	struct drm_mode_set *modeset;
 	bool *enabled;
 	int width, height;
@@ -1241,11 +1240,6 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper)
 	width = dev->mode_config.max_width;
 	height = dev->mode_config.max_height;
 
-	/* clean out all the encoder/crtc combos */
-	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
-		encoder->crtc = NULL;
-	}
-
 	crtcs = kcalloc(dev->mode_config.num_connector,
 			sizeof(struct drm_fb_helper_crtc *), GFP_KERNEL);
 	modes = kcalloc(dev->mode_config.num_connector,

drivers/gpu/drm/i915/dvo.h

@@ -58,13 +58,12 @@ struct intel_dvo_dev_ops {
 	void (*create_resources)(struct intel_dvo_device *dvo);
 
 	/*
-	 * Turn on/off output or set intermediate power levels if available.
+	 * Turn on/off output.
 	 *
-	 * Unsupported intermediate modes drop to the lower power setting.
-	 * If the  mode is DPMSModeOff, the output must be disabled,
-	 * as the DPLL may be disabled afterwards.
+	 * Because none of our dvo drivers support an intermediate power levels,
+	 * we don't expose this in the interfac.
 	 */
-	void (*dpms)(struct intel_dvo_device *dvo, int mode);
+	void (*dpms)(struct intel_dvo_device *dvo, bool enable);
 
 	/*
 	 * Callback for testing a video mode for a given output.

drivers/gpu/drm/i915/dvo_ch7017.c

@@ -163,7 +163,7 @@ struct ch7017_priv {
 };
 
 static void ch7017_dump_regs(struct intel_dvo_device *dvo);
-static void ch7017_dpms(struct intel_dvo_device *dvo, int mode);
+static void ch7017_dpms(struct intel_dvo_device *dvo, bool enable);
 
 static bool ch7017_read(struct intel_dvo_device *dvo, u8 addr, u8 *val)
 {
@@ -309,7 +309,7 @@ static void ch7017_mode_set(struct intel_dvo_device *dvo,
 	lvds_power_down = CH7017_LVDS_POWER_DOWN_DEFAULT_RESERVED |
 			  (mode->hdisplay & 0x0700) >> 8;
 
-	ch7017_dpms(dvo, DRM_MODE_DPMS_OFF);
+	ch7017_dpms(dvo, false);
 	ch7017_write(dvo, CH7017_HORIZONTAL_ACTIVE_PIXEL_INPUT,
 			horizontal_active_pixel_input);
 	ch7017_write(dvo, CH7017_HORIZONTAL_ACTIVE_PIXEL_OUTPUT,
@@ -331,7 +331,7 @@ static void ch7017_mode_set(struct intel_dvo_device *dvo,
 }
 
 /* set the CH7017 power state */
-static void ch7017_dpms(struct intel_dvo_device *dvo, int mode)
+static void ch7017_dpms(struct intel_dvo_device *dvo, bool enable)
 {
 	uint8_t val;
 
@@ -345,7 +345,7 @@ static void ch7017_dpms(struct intel_dvo_device *dvo, int mode)
 			CH7017_DAC3_POWER_DOWN |
 			CH7017_TV_POWER_DOWN_EN);
 
-	if (mode == DRM_MODE_DPMS_ON) {
+	if (enable) {
 		/* Turn on the LVDS */
 		ch7017_write(dvo, CH7017_LVDS_POWER_DOWN,
 			     val & ~CH7017_LVDS_POWER_DOWN_EN);

drivers/gpu/drm/i915/dvo_ch7xxx.c

@@ -289,9 +289,9 @@ static void ch7xxx_mode_set(struct intel_dvo_device *dvo,
 }
 
 /* set the CH7xxx power state */
-static void ch7xxx_dpms(struct intel_dvo_device *dvo, int mode)
+static void ch7xxx_dpms(struct intel_dvo_device *dvo, bool enable)
 {
-	if (mode == DRM_MODE_DPMS_ON)
+	if (enable)
 		ch7xxx_writeb(dvo, CH7xxx_PM, CH7xxx_PM_DVIL | CH7xxx_PM_DVIP);
 	else
 		ch7xxx_writeb(dvo, CH7xxx_PM, CH7xxx_PM_FPD);

drivers/gpu/drm/i915/dvo_ivch.c

@@ -288,7 +288,7 @@ static enum drm_mode_status ivch_mode_valid(struct intel_dvo_device *dvo,
 }
 
 /** Sets the power state of the panel connected to the ivch */
-static void ivch_dpms(struct intel_dvo_device *dvo, int mode)
+static void ivch_dpms(struct intel_dvo_device *dvo, bool enable)
 {
 	int i;
 	uint16_t vr01, vr30, backlight;
@@ -297,13 +297,13 @@ static void ivch_dpms(struct intel_dvo_device *dvo, int mode)
 	if (!ivch_read(dvo, VR01, &vr01))
 		return;
 
-	if (mode == DRM_MODE_DPMS_ON)
+	if (enable)
 		backlight = 1;
 	else
 		backlight = 0;
 	ivch_write(dvo, VR80, backlight);
 
-	if (mode == DRM_MODE_DPMS_ON)
+	if (enable)
 		vr01 |= VR01_LCD_ENABLE | VR01_DVO_ENABLE;
 	else
 		vr01 &= ~(VR01_LCD_ENABLE | VR01_DVO_ENABLE);
@@ -315,7 +315,7 @@ static void ivch_dpms(struct intel_dvo_device *dvo, int mode)
 		if (!ivch_read(dvo, VR30, &vr30))
 			break;
 
-		if (((vr30 & VR30_PANEL_ON) != 0) == (mode == DRM_MODE_DPMS_ON))
+		if (((vr30 & VR30_PANEL_ON) != 0) == enable)
 			break;
 		udelay(1000);
 	}

drivers/gpu/drm/i915/dvo_ns2501.c

@@ -74,11 +74,6 @@ struct ns2501_priv {
 
 #define NSPTR(d) ((NS2501Ptr)(d->DriverPrivate.ptr))
 
-/*
- * Include the PLL launcher prototype
- */
-extern void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe);
-
 /*
  * For reasons unclear to me, the ns2501 at least on the Fujitsu/Siemens
  * laptops does not react on the i2c bus unless
@@ -113,8 +108,6 @@ static void enable_dvo(struct intel_dvo_device *dvo)
 	I915_WRITE(DVOC_SRCDIM, 0x400300);	// 1024x768
 	I915_WRITE(FW_BLC, 0x1080304);
 
-	intel_enable_pll(dev_priv, 0);
-
 	I915_WRITE(DVOC, 0x90004084);
 }
 
@@ -500,19 +493,19 @@ static void ns2501_mode_set(struct intel_dvo_device *dvo,
 }
 
 /* set the NS2501 power state */
-static void ns2501_dpms(struct intel_dvo_device *dvo, int mode)
+static void ns2501_dpms(struct intel_dvo_device *dvo, bool enable)
 {
 	bool ok;
 	bool restore = false;
 	struct ns2501_priv *ns = (struct ns2501_priv *)(dvo->dev_priv);
 	unsigned char ch;
 
-	DRM_DEBUG_KMS("%s: Trying set the dpms of the DVO to %d\n",
-		      __FUNCTION__, mode);
+	DRM_DEBUG_KMS("%s: Trying set the dpms of the DVO to %i\n",
+		      __FUNCTION__, enable);
 
 	ch = ns->reg_8_shadow;
 
-	if (mode == DRM_MODE_DPMS_ON)
+	if (enable)
 		ch |= NS2501_8_PD;
 	else
 		ch &= ~NS2501_8_PD;
@@ -526,12 +519,10 @@ static void ns2501_dpms(struct intel_dvo_device *dvo, int mode)
 			ok &= ns2501_writeb(dvo, NS2501_REG8, ch);
 			ok &=
 			    ns2501_writeb(dvo, 0x34,
-					  (mode ==
-					   DRM_MODE_DPMS_ON) ? (0x03) : (0x00));
+					  enable ? 0x03 : 0x00);
 			ok &=
 			    ns2501_writeb(dvo, 0x35,
-					  (mode ==
-					   DRM_MODE_DPMS_ON) ? (0xff) : (0x00));
+					  enable ? 0xff : 0x00);
 			if (!ok) {
 				if (restore)
 					restore_dvo(dvo);

drivers/gpu/drm/i915/dvo_sil164.c

@@ -208,7 +208,7 @@ static void sil164_mode_set(struct intel_dvo_device *dvo,
 }
 
 /* set the SIL164 power state */
-static void sil164_dpms(struct intel_dvo_device *dvo, int mode)
+static void sil164_dpms(struct intel_dvo_device *dvo, bool enable)
 {
 	int ret;
 	unsigned char ch;
@@ -217,7 +217,7 @@ static void sil164_dpms(struct intel_dvo_device *dvo, int mode)
 	if (ret == false)
 		return;
 
-	if (mode == DRM_MODE_DPMS_ON)
+	if (enable)
 		ch |= SIL164_8_PD;
 	else
 		ch &= ~SIL164_8_PD;

drivers/gpu/drm/i915/dvo_tfp410.c

@@ -234,14 +234,14 @@ static void tfp410_mode_set(struct intel_dvo_device *dvo,
 }
 
 /* set the tfp410 power state */
-static void tfp410_dpms(struct intel_dvo_device *dvo, int mode)
+static void tfp410_dpms(struct intel_dvo_device *dvo, bool enable)
 {
 	uint8_t ctl1;
 
 	if (!tfp410_readb(dvo, TFP410_CTL_1, &ctl1))
 		return;
 
-	if (mode == DRM_MODE_DPMS_ON)
+	if (enable)
 		ctl1 |= TFP410_CTL_1_PD;
 	else
 		ctl1 &= ~TFP410_CTL_1_PD;

drivers/gpu/drm/i915/i915_debugfs.c

@@ -118,6 +118,8 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
 		   obj->madv == I915_MADV_DONTNEED ? " purgeable" : "");
 	if (obj->base.name)
 		seq_printf(m, " (name: %d)", obj->base.name);
+	if (obj->pin_count)
+		seq_printf(m, " (pinned x %d)", obj->pin_count);
 	if (obj->fence_reg != I915_FENCE_REG_NONE)
 		seq_printf(m, " (fence: %d)", obj->fence_reg);
 	if (obj->gtt_space != NULL)
@@ -197,8 +199,8 @@ static int i915_gem_object_info(struct seq_file *m, void* data)
 	struct drm_info_node *node = (struct drm_info_node *) m->private;
 	struct drm_device *dev = node->minor->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	u32 count, mappable_count;
-	size_t size, mappable_size;
+	u32 count, mappable_count, purgeable_count;
+	size_t size, mappable_size, purgeable_size;
 	struct drm_i915_gem_object *obj;
 	int ret;
 
@@ -211,7 +213,7 @@ static int i915_gem_object_info(struct seq_file *m, void* data)
 		   dev_priv->mm.object_memory);
 
 	size = count = mappable_size = mappable_count = 0;
-	count_objects(&dev_priv->mm.gtt_list, gtt_list);
+	count_objects(&dev_priv->mm.bound_list, gtt_list);
 	seq_printf(m, "%u [%u] objects, %zu [%zu] bytes in gtt\n",
 		   count, mappable_count, size, mappable_size);
 
@@ -225,8 +227,16 @@ static int i915_gem_object_info(struct seq_file *m, void* data)
 	seq_printf(m, "  %u [%u] inactive objects, %zu [%zu] bytes\n",
 		   count, mappable_count, size, mappable_size);
 
+	size = count = purgeable_size = purgeable_count = 0;
+	list_for_each_entry(obj, &dev_priv->mm.unbound_list, gtt_list) {
+		size += obj->base.size, ++count;
+		if (obj->madv == I915_MADV_DONTNEED)
+			purgeable_size += obj->base.size, ++purgeable_count;
+	}
+	seq_printf(m, "%u unbound objects, %zu bytes\n", count, size);
+
 	size = count = mappable_size = mappable_count = 0;
-	list_for_each_entry(obj, &dev_priv->mm.gtt_list, gtt_list) {
+	list_for_each_entry(obj, &dev_priv->mm.bound_list, gtt_list) {
 		if (obj->fault_mappable) {
 			size += obj->gtt_space->size;
 			++count;
@@ -235,7 +245,13 @@ static int i915_gem_object_info(struct seq_file *m, void* data)
 			mappable_size += obj->gtt_space->size;
 			++mappable_count;
 		}
+		if (obj->madv == I915_MADV_DONTNEED) {
+			purgeable_size += obj->base.size;
+			++purgeable_count;
+		}
 	}
+	seq_printf(m, "%u purgeable objects, %zu bytes\n",
+		   purgeable_count, purgeable_size);
 	seq_printf(m, "%u pinned mappable objects, %zu bytes\n",
 		   mappable_count, mappable_size);
 	seq_printf(m, "%u fault mappable objects, %zu bytes\n",
@@ -264,7 +280,7 @@ static int i915_gem_gtt_info(struct seq_file *m, void* data)
 		return ret;
 
 	total_obj_size = total_gtt_size = count = 0;
-	list_for_each_entry(obj, &dev_priv->mm.gtt_list, gtt_list) {
+	list_for_each_entry(obj, &dev_priv->mm.bound_list, gtt_list) {
 		if (list == PINNED_LIST && obj->pin_count == 0)
 			continue;
 
@@ -526,7 +542,8 @@ static int i915_gem_fence_regs_info(struct seq_file *m, void *data)
 	for (i = 0; i < dev_priv->num_fence_regs; i++) {
 		struct drm_i915_gem_object *obj = dev_priv->fence_regs[i].obj;
 
-		seq_printf(m, "Fenced object[%2d] = ", i);
+		seq_printf(m, "Fence %d, pin count = %d, object = ",
+			   i, dev_priv->fence_regs[i].pin_count);
 		if (obj == NULL)
 			seq_printf(m, "unused");
 		else
@@ -645,10 +662,9 @@ static void i915_ring_error_state(struct seq_file *m,
 	seq_printf(m, "  IPEIR: 0x%08x\n", error->ipeir[ring]);
 	seq_printf(m, "  IPEHR: 0x%08x\n", error->ipehr[ring]);
 	seq_printf(m, "  INSTDONE: 0x%08x\n", error->instdone[ring]);
-	if (ring == RCS && INTEL_INFO(dev)->gen >= 4) {
-		seq_printf(m, "  INSTDONE1: 0x%08x\n", error->instdone1);
+	if (ring == RCS && INTEL_INFO(dev)->gen >= 4)
 		seq_printf(m, "  BBADDR: 0x%08llx\n", error->bbaddr);
-	}
+
 	if (INTEL_INFO(dev)->gen >= 4)
 		seq_printf(m, "  INSTPS: 0x%08x\n", error->instps[ring]);
 	seq_printf(m, "  INSTPM: 0x%08x\n", error->instpm[ring]);
@@ -697,11 +713,17 @@ static int i915_error_state(struct seq_file *m, void *unused)
 	for (i = 0; i < dev_priv->num_fence_regs; i++)
 		seq_printf(m, "  fence[%d] = %08llx\n", i, error->fence[i]);
 
+	for (i = 0; i < ARRAY_SIZE(error->extra_instdone); i++)
+		seq_printf(m, "  INSTDONE_%d: 0x%08x\n", i, error->extra_instdone[i]);
+
 	if (INTEL_INFO(dev)->gen >= 6) {
 		seq_printf(m, "ERROR: 0x%08x\n", error->error);
 		seq_printf(m, "DONE_REG: 0x%08x\n", error->done_reg);
 	}
 
+	if (INTEL_INFO(dev)->gen == 7)
+		seq_printf(m, "ERR_INT: 0x%08x\n", error->err_int);
+
 	for_each_ring(ring, dev_priv, i)
 		i915_ring_error_state(m, dev, error, i);
 

drivers/gpu/drm/i915/i915_dma.c

@@ -235,10 +235,10 @@ static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init)
 		}
 	}
 
-	dev_priv->cpp = init->cpp;
-	dev_priv->back_offset = init->back_offset;
-	dev_priv->front_offset = init->front_offset;
-	dev_priv->current_page = 0;
+	dev_priv->dri1.cpp = init->cpp;
+	dev_priv->dri1.back_offset = init->back_offset;
+	dev_priv->dri1.front_offset = init->front_offset;
+	dev_priv->dri1.current_page = 0;
 	if (master_priv->sarea_priv)
 		master_priv->sarea_priv->pf_current_page = 0;
 
@@ -575,7 +575,7 @@ static int i915_dispatch_flip(struct drm_device * dev)
 
 	DRM_DEBUG_DRIVER("%s: page=%d pfCurrentPage=%d\n",
 			  __func__,
-			 dev_priv->current_page,
+			 dev_priv->dri1.current_page,
 			 master_priv->sarea_priv->pf_current_page);
 
 	i915_kernel_lost_context(dev);
@@ -589,12 +589,12 @@ static int i915_dispatch_flip(struct drm_device * dev)
 
 	OUT_RING(CMD_OP_DISPLAYBUFFER_INFO | ASYNC_FLIP);
 	OUT_RING(0);
-	if (dev_priv->current_page == 0) {
-		OUT_RING(dev_priv->back_offset);
-		dev_priv->current_page = 1;
+	if (dev_priv->dri1.current_page == 0) {
+		OUT_RING(dev_priv->dri1.back_offset);
+		dev_priv->dri1.current_page = 1;
 	} else {
-		OUT_RING(dev_priv->front_offset);
-		dev_priv->current_page = 0;
+		OUT_RING(dev_priv->dri1.front_offset);
+		dev_priv->dri1.current_page = 0;
 	}
 	OUT_RING(0);
 
@@ -613,7 +613,7 @@ static int i915_dispatch_flip(struct drm_device * dev)
 		ADVANCE_LP_RING();
 	}
 
-	master_priv->sarea_priv->pf_current_page = dev_priv->current_page;
+	master_priv->sarea_priv->pf_current_page = dev_priv->dri1.current_page;
 	return 0;
 }
 
@@ -1012,6 +1012,9 @@ static int i915_getparam(struct drm_device *dev, void *data,
 	case I915_PARAM_HAS_SEMAPHORES:
 		value = i915_semaphore_is_enabled(dev);
 		break;
+	case I915_PARAM_HAS_PRIME_VMAP_FLUSH:
+		value = 1;
+		break;
 	default:
 		DRM_DEBUG_DRIVER("Unknown parameter %d\n",
 				 param->param);
@@ -1555,11 +1558,9 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
 	 *
 	 * All tasks on the workqueue are expected to acquire the dev mutex
 	 * so there is no point in running more than one instance of the
-	 * workqueue at any time: max_active = 1 and NON_REENTRANT.
+	 * workqueue at any time.  Use an ordered one.
 	 */
-	dev_priv->wq = alloc_workqueue("i915",
-				       WQ_UNBOUND | WQ_NON_REENTRANT,
-				       1);
+	dev_priv->wq = alloc_ordered_workqueue("i915", 0);
 	if (dev_priv->wq == NULL) {
 		DRM_ERROR("Failed to create our workqueue.\n");
 		ret = -ENOMEM;

drivers/gpu/drm/i915/i915_drv.c

@@ -1174,6 +1174,10 @@ void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val) { \
 	if (unlikely(__fifo_ret)) { \
 		gen6_gt_check_fifodbg(dev_priv); \
 	} \
+	if (IS_HASWELL(dev_priv->dev) && (I915_READ_NOTRACE(GEN7_ERR_INT) & ERR_INT_MMIO_UNCLAIMED)) { \
+		DRM_ERROR("Unclaimed write to %x\n", reg); \
+		writel(ERR_INT_MMIO_UNCLAIMED, dev_priv->regs + GEN7_ERR_INT);	\
+	} \
 }
 __i915_write(8, b)
 __i915_write(16, w)

drivers/gpu/drm/i915/i915_drv.h

@@ -196,9 +196,10 @@ struct drm_i915_error_state {
 	u32 cpu_ring_head[I915_NUM_RINGS];
 	u32 cpu_ring_tail[I915_NUM_RINGS];
 	u32 error; /* gen6+ */
+	u32 err_int; /* gen7 */
 	u32 instpm[I915_NUM_RINGS];
 	u32 instps[I915_NUM_RINGS];
-	u32 instdone1;
+	u32 extra_instdone[I915_NUM_INSTDONE_REG];
 	u32 seqno[I915_NUM_RINGS];
 	u64 bbaddr;
 	u32 fault_reg[I915_NUM_RINGS];
@@ -428,12 +429,6 @@ typedef struct drm_i915_private {
 
 	struct resource mch_res;
 
-	unsigned int cpp;
-	int back_offset;
-	int front_offset;
-	int current_page;
-	int page_flipping;
-
 	atomic_t irq_received;
 
 	/* protects the irq masks */
@@ -451,7 +446,6 @@ typedef struct drm_i915_private {
 	u32 hotplug_supported_mask;
 	struct work_struct hotplug_work;
 
-	unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds;
 	int num_pipe;
 	int num_pch_pll;
 
@@ -460,8 +454,7 @@ typedef struct drm_i915_private {
 	struct timer_list hangcheck_timer;
 	int hangcheck_count;
 	uint32_t last_acthd[I915_NUM_RINGS];
-	uint32_t last_instdone;
-	uint32_t last_instdone1;
+	uint32_t prev_instdone[I915_NUM_INSTDONE_REG];
 
 	unsigned int stop_rings;
 
@@ -692,7 +685,13 @@ typedef struct drm_i915_private {
 		struct drm_mm gtt_space;
 		/** List of all objects in gtt_space. Used to restore gtt
 		 * mappings on resume */
-		struct list_head gtt_list;
+		struct list_head bound_list;
+		/**
+		 * List of objects which are not bound to the GTT (thus
+		 * are idle and not used by the GPU) but still have
+		 * (presumably uncached) pages still attached.
+		 */
+		struct list_head unbound_list;
 
 		/** Usable portion of the GTT for GEM */
 		unsigned long gtt_start;
@@ -790,6 +789,12 @@ typedef struct drm_i915_private {
 	struct {
 		unsigned allow_batchbuffer : 1;
 		u32 __iomem *gfx_hws_cpu_addr;
+
+		unsigned int cpp;
+		int back_offset;
+		int front_offset;
+		int current_page;
+		int page_flipping;
 	} dri1;
 
 	/* Kernel Modesetting */
@@ -1296,19 +1301,20 @@ int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
 			struct drm_file *file_priv);
 void i915_gem_load(struct drm_device *dev);
 int i915_gem_init_object(struct drm_gem_object *obj);
+void i915_gem_object_init(struct drm_i915_gem_object *obj);
 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
 						  size_t size);
 void i915_gem_free_object(struct drm_gem_object *obj);
 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
 				     uint32_t alignment,
-				     bool map_and_fenceable);
+				     bool map_and_fenceable,
+				     bool nonblocking);
 void i915_gem_object_unpin(struct drm_i915_gem_object *obj);
 int __must_check i915_gem_object_unbind(struct drm_i915_gem_object *obj);
 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
 void i915_gem_lastclose(struct drm_device *dev);
 
-int i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj,
-				  gfp_t gfpmask);
+int __must_check i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj);
 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
 			 struct intel_ring_buffer *to);
@@ -1449,8 +1455,9 @@ void i915_gem_init_global_gtt(struct drm_device *dev,
 int __must_check i915_gem_evict_something(struct drm_device *dev, int min_size,
 					  unsigned alignment,
 					  unsigned cache_level,
-					  bool mappable);
-int i915_gem_evict_everything(struct drm_device *dev, bool purgeable_only);
+					  bool mappable,
+					  bool nonblock);
+int i915_gem_evict_everything(struct drm_device *dev);
 
 /* i915_gem_stolen.c */
 int i915_gem_init_stolen(struct drm_device *dev);

drivers/gpu/drm/i915/i915_gem_context.c

@@ -221,7 +221,7 @@ static int create_default_context(struct drm_i915_private *dev_priv)
 	 * default context.
 	 */
 	dev_priv->ring[RCS].default_context = ctx;
-	ret = i915_gem_object_pin(ctx->obj, CONTEXT_ALIGN, false);
+	ret = i915_gem_object_pin(ctx->obj, CONTEXT_ALIGN, false, false);
 	if (ret)
 		goto err_destroy;
 
@@ -374,7 +374,7 @@ static int do_switch(struct i915_hw_context *to)
 	if (from_obj == to->obj)
 		return 0;
 
-	ret = i915_gem_object_pin(to->obj, CONTEXT_ALIGN, false);
+	ret = i915_gem_object_pin(to->obj, CONTEXT_ALIGN, false, false);
 	if (ret)
 		return ret;
 

drivers/gpu/drm/i915/i915_gem_dmabuf.c

@@ -33,7 +33,7 @@ static struct sg_table *i915_gem_map_dma_buf(struct dma_buf_attachment *attachme
 	struct drm_i915_gem_object *obj = attachment->dmabuf->priv;
 	struct drm_device *dev = obj->base.dev;
 	int npages = obj->base.size / PAGE_SIZE;
-	struct sg_table *sg = NULL;
+	struct sg_table *sg;
 	int ret;
 	int nents;
 
@@ -41,10 +41,10 @@ static struct sg_table *i915_gem_map_dma_buf(struct dma_buf_attachment *attachme
 	if (ret)
 		return ERR_PTR(ret);
 
-	if (!obj->pages) {
-		ret = i915_gem_object_get_pages_gtt(obj, __GFP_NORETRY | __GFP_NOWARN);
-		if (ret)
-			goto out;
+	ret = i915_gem_object_get_pages_gtt(obj);
+	if (ret) {
+		sg = ERR_PTR(ret);
+		goto out;
 	}
 
 	/* link the pages into an SG then map the sg */
@@ -89,12 +89,10 @@ static void *i915_gem_dmabuf_vmap(struct dma_buf *dma_buf)
 		goto out_unlock;
 	}
 
-	if (!obj->pages) {
-		ret = i915_gem_object_get_pages_gtt(obj, __GFP_NORETRY | __GFP_NOWARN);
-		if (ret) {
-			mutex_unlock(&dev->struct_mutex);
-			return ERR_PTR(ret);
-		}
+	ret = i915_gem_object_get_pages_gtt(obj);
+	if (ret) {
+		mutex_unlock(&dev->struct_mutex);
+		return ERR_PTR(ret);
 	}
 
 	obj->dma_buf_vmapping = vmap(obj->pages, obj->base.size / PAGE_SIZE, 0, PAGE_KERNEL);
@@ -151,6 +149,22 @@ static int i915_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *
 	return -EINVAL;
 }
 
+static int i915_gem_begin_cpu_access(struct dma_buf *dma_buf, size_t start, size_t length, enum dma_data_direction direction)
+{
+	struct drm_i915_gem_object *obj = dma_buf->priv;
+	struct drm_device *dev = obj->base.dev;
+	int ret;
+	bool write = (direction == DMA_BIDIRECTIONAL || direction == DMA_TO_DEVICE);
+
+	ret = i915_mutex_lock_interruptible(dev);
+	if (ret)
+		return ret;
+
+	ret = i915_gem_object_set_to_cpu_domain(obj, write);
+	mutex_unlock(&dev->struct_mutex);
+	return ret;
+}
+
 static const struct dma_buf_ops i915_dmabuf_ops =  {
 	.map_dma_buf = i915_gem_map_dma_buf,
 	.unmap_dma_buf = i915_gem_unmap_dma_buf,
@@ -162,6 +176,7 @@ static const struct dma_buf_ops i915_dmabuf_ops =  {
 	.mmap = i915_gem_dmabuf_mmap,
 	.vmap = i915_gem_dmabuf_vmap,
 	.vunmap = i915_gem_dmabuf_vunmap,
+	.begin_cpu_access = i915_gem_begin_cpu_access,
 };
 
 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,

drivers/gpu/drm/i915/i915_gem_evict.c

@@ -45,7 +45,7 @@ mark_free(struct drm_i915_gem_object *obj, struct list_head *unwind)
 int
 i915_gem_evict_something(struct drm_device *dev, int min_size,
 			 unsigned alignment, unsigned cache_level,
-			 bool mappable)
+			 bool mappable, bool nonblocking)
 {
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	struct list_head eviction_list, unwind_list;
@@ -92,12 +92,16 @@ i915_gem_evict_something(struct drm_device *dev, int min_size,
 			goto found;
 	}
 
+	if (nonblocking)
+		goto none;
+
 	/* Now merge in the soon-to-be-expired objects... */
 	list_for_each_entry(obj, &dev_priv->mm.active_list, mm_list) {
 		if (mark_free(obj, &unwind_list))
 			goto found;
 	}
 
+none:
 	/* Nothing found, clean up and bail out! */
 	while (!list_empty(&unwind_list)) {
 		obj = list_first_entry(&unwind_list,
@@ -148,7 +152,7 @@ i915_gem_evict_something(struct drm_device *dev, int min_size,
 }
 
 int
-i915_gem_evict_everything(struct drm_device *dev, bool purgeable_only)
+i915_gem_evict_everything(struct drm_device *dev)
 {
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	struct drm_i915_gem_object *obj, *next;
@@ -160,7 +164,7 @@ i915_gem_evict_everything(struct drm_device *dev, bool purgeable_only)
 	if (lists_empty)
 		return -ENOSPC;
 
-	trace_i915_gem_evict_everything(dev, purgeable_only);
+	trace_i915_gem_evict_everything(dev);
 
 	/* The gpu_idle will flush everything in the write domain to the
 	 * active list. Then we must move everything off the active list
@@ -174,12 +178,9 @@ i915_gem_evict_everything(struct drm_device *dev, bool purgeable_only)
 
 	/* Having flushed everything, unbind() should never raise an error */
 	list_for_each_entry_safe(obj, next,
-				 &dev_priv->mm.inactive_list, mm_list) {
-		if (!purgeable_only || obj->madv != I915_MADV_WILLNEED) {
-			if (obj->pin_count == 0)
-				WARN_ON(i915_gem_object_unbind(obj));
-		}
-	}
+				 &dev_priv->mm.inactive_list, mm_list)
+		if (obj->pin_count == 0)
+			WARN_ON(i915_gem_object_unbind(obj));
 
 	return 0;
 }

drivers/gpu/drm/i915/i915_gem_execbuffer.c

@@ -95,6 +95,7 @@ eb_destroy(struct eb_objects *eb)
 static inline int use_cpu_reloc(struct drm_i915_gem_object *obj)
 {
 	return (obj->base.write_domain == I915_GEM_DOMAIN_CPU ||
+		!obj->map_and_fenceable ||
 		obj->cache_level != I915_CACHE_NONE);
 }
 
@@ -330,7 +331,8 @@ i915_gem_execbuffer_relocate(struct drm_device *dev,
 	return ret;
 }
 
-#define  __EXEC_OBJECT_HAS_FENCE (1<<31)
+#define  __EXEC_OBJECT_HAS_PIN (1<<31)
+#define  __EXEC_OBJECT_HAS_FENCE (1<<30)
 
 static int
 need_reloc_mappable(struct drm_i915_gem_object *obj)
@@ -340,9 +342,10 @@ need_reloc_mappable(struct drm_i915_gem_object *obj)
 }
 
 static int
-pin_and_fence_object(struct drm_i915_gem_object *obj,
-		     struct intel_ring_buffer *ring)
+i915_gem_execbuffer_reserve_object(struct drm_i915_gem_object *obj,
+				   struct intel_ring_buffer *ring)
 {
+	struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
 	struct drm_i915_gem_exec_object2 *entry = obj->exec_entry;
 	bool has_fenced_gpu_access = INTEL_INFO(ring->dev)->gen < 4;
 	bool need_fence, need_mappable;
@@ -354,15 +357,17 @@ pin_and_fence_object(struct drm_i915_gem_object *obj,
 		obj->tiling_mode != I915_TILING_NONE;
 	need_mappable = need_fence || need_reloc_mappable(obj);
 
-	ret = i915_gem_object_pin(obj, entry->alignment, need_mappable);
+	ret = i915_gem_object_pin(obj, entry->alignment, need_mappable, false);
 	if (ret)
 		return ret;
 
+	entry->flags |= __EXEC_OBJECT_HAS_PIN;
+
 	if (has_fenced_gpu_access) {
 		if (entry->flags & EXEC_OBJECT_NEEDS_FENCE) {
 			ret = i915_gem_object_get_fence(obj);
 			if (ret)
-				goto err_unpin;
+				return ret;
 
 			if (i915_gem_object_pin_fence(obj))
 				entry->flags |= __EXEC_OBJECT_HAS_FENCE;
@@ -371,12 +376,35 @@ pin_and_fence_object(struct drm_i915_gem_object *obj,
 		}
 	}
 
+	/* Ensure ppgtt mapping exists if needed */
+	if (dev_priv->mm.aliasing_ppgtt && !obj->has_aliasing_ppgtt_mapping) {
+		i915_ppgtt_bind_object(dev_priv->mm.aliasing_ppgtt,
+				       obj, obj->cache_level);
+
+		obj->has_aliasing_ppgtt_mapping = 1;
+	}
+
 	entry->offset = obj->gtt_offset;
 	return 0;
+}
 
-err_unpin:
-	i915_gem_object_unpin(obj);
-	return ret;
+static void
+i915_gem_execbuffer_unreserve_object(struct drm_i915_gem_object *obj)
+{
+	struct drm_i915_gem_exec_object2 *entry;
+
+	if (!obj->gtt_space)
+		return;
+
+	entry = obj->exec_entry;
+
+	if (entry->flags & __EXEC_OBJECT_HAS_FENCE)
+		i915_gem_object_unpin_fence(obj);
+
+	if (entry->flags & __EXEC_OBJECT_HAS_PIN)
+		i915_gem_object_unpin(obj);
+
+	entry->flags &= ~(__EXEC_OBJECT_HAS_FENCE | __EXEC_OBJECT_HAS_PIN);
 }
 
 static int
@@ -384,11 +412,10 @@ i915_gem_execbuffer_reserve(struct intel_ring_buffer *ring,
 			    struct drm_file *file,
 			    struct list_head *objects)
 {
-	drm_i915_private_t *dev_priv = ring->dev->dev_private;
 	struct drm_i915_gem_object *obj;
-	int ret, retry;
-	bool has_fenced_gpu_access = INTEL_INFO(ring->dev)->gen < 4;
 	struct list_head ordered_objects;
+	bool has_fenced_gpu_access = INTEL_INFO(ring->dev)->gen < 4;
+	int retry;
 
 	INIT_LIST_HEAD(&ordered_objects);
 	while (!list_empty(objects)) {
@@ -426,12 +453,12 @@ i915_gem_execbuffer_reserve(struct intel_ring_buffer *ring,
 	 * 2.  Bind new objects.
 	 * 3.  Decrement pin count.
 	 *
-	 * This avoid unnecessary unbinding of later objects in order to makr
+	 * This avoid unnecessary unbinding of later objects in order to make
 	 * room for the earlier objects *unless* we need to defragment.
 	 */
 	retry = 0;
 	do {
-		ret = 0;
+		int ret = 0;
 
 		/* Unbind any ill-fitting objects or pin. */
 		list_for_each_entry(obj, objects, exec_list) {
@@ -451,7 +478,7 @@ i915_gem_execbuffer_reserve(struct intel_ring_buffer *ring,
 			    (need_mappable && !obj->map_and_fenceable))
 				ret = i915_gem_object_unbind(obj);
 			else
-				ret = pin_and_fence_object(obj, ring);
+				ret = i915_gem_execbuffer_reserve_object(obj, ring);
 			if (ret)
 				goto err;
 		}
@@ -461,77 +488,22 @@ i915_gem_execbuffer_reserve(struct intel_ring_buffer *ring,
 			if (obj->gtt_space)
 				continue;
 
-			ret = pin_and_fence_object(obj, ring);
-			if (ret) {
-				int ret_ignore;
-
-				/* This can potentially raise a harmless
-				 * -EINVAL if we failed to bind in the above
-				 * call. It cannot raise -EINTR since we know
-				 * that the bo is freshly bound and so will
-				 * not need to be flushed or waited upon.
-				 */
-				ret_ignore = i915_gem_object_unbind(obj);
-				(void)ret_ignore;
-				WARN_ON(obj->gtt_space);
-				break;
-			}
+			ret = i915_gem_execbuffer_reserve_object(obj, ring);
+			if (ret)
+				goto err;
 		}
 
-		/* Decrement pin count for bound objects */
-		list_for_each_entry(obj, objects, exec_list) {
-			struct drm_i915_gem_exec_object2 *entry;
+err:		/* Decrement pin count for bound objects */
+		list_for_each_entry(obj, objects, exec_list)
+			i915_gem_execbuffer_unreserve_object(obj);
 
-			if (!obj->gtt_space)
-				continue;
-
-			entry = obj->exec_entry;
-			if (entry->flags & __EXEC_OBJECT_HAS_FENCE) {
-				i915_gem_object_unpin_fence(obj);
-				entry->flags &= ~__EXEC_OBJECT_HAS_FENCE;
-			}
-
-			i915_gem_object_unpin(obj);
-
-			/* ... and ensure ppgtt mapping exist if needed. */
-			if (dev_priv->mm.aliasing_ppgtt && !obj->has_aliasing_ppgtt_mapping) {
-				i915_ppgtt_bind_object(dev_priv->mm.aliasing_ppgtt,
-						       obj, obj->cache_level);
-
-				obj->has_aliasing_ppgtt_mapping = 1;
-			}
-		}
-
-		if (ret != -ENOSPC || retry > 1)
+		if (ret != -ENOSPC || retry++)
 			return ret;
 
-		/* First attempt, just clear anything that is purgeable.
-		 * Second attempt, clear the entire GTT.
-		 */
-		ret = i915_gem_evict_everything(ring->dev, retry == 0);
+		ret = i915_gem_evict_everything(ring->dev);
 		if (ret)
 			return ret;
-
-		retry++;
 	} while (1);
-
-err:
-	list_for_each_entry_continue_reverse(obj, objects, exec_list) {
-		struct drm_i915_gem_exec_object2 *entry;
-
-		if (!obj->gtt_space)
-			continue;
-
-		entry = obj->exec_entry;
-		if (entry->flags & __EXEC_OBJECT_HAS_FENCE) {
-			i915_gem_object_unpin_fence(obj);
-			entry->flags &= ~__EXEC_OBJECT_HAS_FENCE;
-		}
-
-		i915_gem_object_unpin(obj);
-	}
-
-	return ret;
 }
 
 static int

drivers/gpu/drm/i915/i915_gem_gtt.c

@@ -351,7 +351,7 @@ void i915_gem_restore_gtt_mappings(struct drm_device *dev)
 	intel_gtt_clear_range(dev_priv->mm.gtt_start / PAGE_SIZE,
 			      (dev_priv->mm.gtt_end - dev_priv->mm.gtt_start) / PAGE_SIZE);
 
-	list_for_each_entry(obj, &dev_priv->mm.gtt_list, gtt_list) {
+	list_for_each_entry(obj, &dev_priv->mm.bound_list, gtt_list) {
 		i915_gem_clflush_object(obj);
 		i915_gem_gtt_bind_object(obj, obj->cache_level);
 	}

drivers/gpu/drm/i915/i915_irq.c

@@ -1070,6 +1070,36 @@ i915_error_first_batchbuffer(struct drm_i915_private *dev_priv,
 	return NULL;
 }
 
+/* NB: please notice the memset */
+static void i915_get_extra_instdone(struct drm_device *dev,
+				    uint32_t *instdone)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	memset(instdone, 0, sizeof(*instdone) * I915_NUM_INSTDONE_REG);
+
+	switch(INTEL_INFO(dev)->gen) {
+	case 2:
+	case 3:
+		instdone[0] = I915_READ(INSTDONE);
+		break;
+	case 4:
+	case 5:
+	case 6:
+		instdone[0] = I915_READ(INSTDONE_I965);
+		instdone[1] = I915_READ(INSTDONE1);
+		break;
+	default:
+		WARN_ONCE(1, "Unsupported platform\n");
+	case 7:
+		instdone[0] = I915_READ(GEN7_INSTDONE_1);
+		instdone[1] = I915_READ(GEN7_SC_INSTDONE);
+		instdone[2] = I915_READ(GEN7_SAMPLER_INSTDONE);
+		instdone[3] = I915_READ(GEN7_ROW_INSTDONE);
+		break;
+	}
+}
+
+
 static void i915_record_ring_state(struct drm_device *dev,
 				   struct drm_i915_error_state *error,
 				   struct intel_ring_buffer *ring)
@@ -1091,10 +1121,8 @@ static void i915_record_ring_state(struct drm_device *dev,
 		error->ipehr[ring->id] = I915_READ(RING_IPEHR(ring->mmio_base));
 		error->instdone[ring->id] = I915_READ(RING_INSTDONE(ring->mmio_base));
 		error->instps[ring->id] = I915_READ(RING_INSTPS(ring->mmio_base));
-		if (ring->id == RCS) {
-			error->instdone1 = I915_READ(INSTDONE1);
+		if (ring->id == RCS)
 			error->bbaddr = I915_READ64(BB_ADDR);
-		}
 	} else {
 		error->faddr[ring->id] = I915_READ(DMA_FADD_I8XX);
 		error->ipeir[ring->id] = I915_READ(IPEIR);
@@ -1210,6 +1238,11 @@ static void i915_capture_error_state(struct drm_device *dev)
 		error->done_reg = I915_READ(DONE_REG);
 	}
 
+	if (INTEL_INFO(dev)->gen == 7)
+		error->err_int = I915_READ(GEN7_ERR_INT);
+
+	i915_get_extra_instdone(dev, error->extra_instdone);
+
 	i915_gem_record_fences(dev, error);
 	i915_gem_record_rings(dev, error);
 
@@ -1221,7 +1254,7 @@ static void i915_capture_error_state(struct drm_device *dev)
 	list_for_each_entry(obj, &dev_priv->mm.active_list, mm_list)
 		i++;
 	error->active_bo_count = i;
-	list_for_each_entry(obj, &dev_priv->mm.gtt_list, gtt_list)
+	list_for_each_entry(obj, &dev_priv->mm.bound_list, gtt_list)
 		if (obj->pin_count)
 			i++;
 	error->pinned_bo_count = i - error->active_bo_count;
@@ -1246,7 +1279,7 @@ static void i915_capture_error_state(struct drm_device *dev)
 		error->pinned_bo_count =
 			capture_pinned_bo(error->pinned_bo,
 					  error->pinned_bo_count,
-					  &dev_priv->mm.gtt_list);
+					  &dev_priv->mm.bound_list);
 
 	do_gettimeofday(&error->time);
 
@@ -1285,24 +1318,26 @@ void i915_destroy_error_state(struct drm_device *dev)
 static void i915_report_and_clear_eir(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
+	uint32_t instdone[I915_NUM_INSTDONE_REG];
 	u32 eir = I915_READ(EIR);
-	int pipe;
+	int pipe, i;
 
 	if (!eir)
 		return;
 
 	pr_err("render error detected, EIR: 0x%08x\n", eir);
 
+	i915_get_extra_instdone(dev, instdone);
+
 	if (IS_G4X(dev)) {
 		if (eir & (GM45_ERROR_MEM_PRIV | GM45_ERROR_CP_PRIV)) {
 			u32 ipeir = I915_READ(IPEIR_I965);
 
 			pr_err("  IPEIR: 0x%08x\n", I915_READ(IPEIR_I965));
 			pr_err("  IPEHR: 0x%08x\n", I915_READ(IPEHR_I965));
-			pr_err("  INSTDONE: 0x%08x\n",
-			       I915_READ(INSTDONE_I965));
+			for (i = 0; i < ARRAY_SIZE(instdone); i++)
+				pr_err("  INSTDONE_%d: 0x%08x\n", i, instdone[i]);
 			pr_err("  INSTPS: 0x%08x\n", I915_READ(INSTPS));
-			pr_err("  INSTDONE1: 0x%08x\n", I915_READ(INSTDONE1));
 			pr_err("  ACTHD: 0x%08x\n", I915_READ(ACTHD_I965));
 			I915_WRITE(IPEIR_I965, ipeir);
 			POSTING_READ(IPEIR_I965);
@@ -1336,12 +1371,13 @@ static void i915_report_and_clear_eir(struct drm_device *dev)
 	if (eir & I915_ERROR_INSTRUCTION) {
 		pr_err("instruction error\n");
 		pr_err("  INSTPM: 0x%08x\n", I915_READ(INSTPM));
+		for (i = 0; i < ARRAY_SIZE(instdone); i++)
+			pr_err("  INSTDONE_%d: 0x%08x\n", i, instdone[i]);
 		if (INTEL_INFO(dev)->gen < 4) {
 			u32 ipeir = I915_READ(IPEIR);
 
 			pr_err("  IPEIR: 0x%08x\n", I915_READ(IPEIR));
 			pr_err("  IPEHR: 0x%08x\n", I915_READ(IPEHR));
-			pr_err("  INSTDONE: 0x%08x\n", I915_READ(INSTDONE));
 			pr_err("  ACTHD: 0x%08x\n", I915_READ(ACTHD));
 			I915_WRITE(IPEIR, ipeir);
 			POSTING_READ(IPEIR);
@@ -1350,10 +1386,7 @@ static void i915_report_and_clear_eir(struct drm_device *dev)
 
 			pr_err("  IPEIR: 0x%08x\n", I915_READ(IPEIR_I965));
 			pr_err("  IPEHR: 0x%08x\n", I915_READ(IPEHR_I965));
-			pr_err("  INSTDONE: 0x%08x\n",
-			       I915_READ(INSTDONE_I965));
 			pr_err("  INSTPS: 0x%08x\n", I915_READ(INSTPS));
-			pr_err("  INSTDONE1: 0x%08x\n", I915_READ(INSTDONE1));
 			pr_err("  ACTHD: 0x%08x\n", I915_READ(ACTHD_I965));
 			I915_WRITE(IPEIR_I965, ipeir);
 			POSTING_READ(IPEIR_I965);
@@ -1668,7 +1701,7 @@ void i915_hangcheck_elapsed(unsigned long data)
 {
 	struct drm_device *dev = (struct drm_device *)data;
 	drm_i915_private_t *dev_priv = dev->dev_private;
-	uint32_t acthd[I915_NUM_RINGS], instdone, instdone1;
+	uint32_t acthd[I915_NUM_RINGS], instdone[I915_NUM_INSTDONE_REG];
 	struct intel_ring_buffer *ring;
 	bool err = false, idle;
 	int i;
@@ -1696,25 +1729,16 @@ void i915_hangcheck_elapsed(unsigned long data)
 		return;
 	}
 
-	if (INTEL_INFO(dev)->gen < 4) {
-		instdone = I915_READ(INSTDONE);
-		instdone1 = 0;
-	} else {
-		instdone = I915_READ(INSTDONE_I965);
-		instdone1 = I915_READ(INSTDONE1);
-	}
-
+	i915_get_extra_instdone(dev, instdone);
 	if (memcmp(dev_priv->last_acthd, acthd, sizeof(acthd)) == 0 &&
-	    dev_priv->last_instdone == instdone &&
-	    dev_priv->last_instdone1 == instdone1) {
+	    memcmp(dev_priv->prev_instdone, instdone, sizeof(instdone)) == 0) {
 		if (i915_hangcheck_hung(dev))
 			return;
 	} else {
 		dev_priv->hangcheck_count = 0;
 
 		memcpy(dev_priv->last_acthd, acthd, sizeof(acthd));
-		dev_priv->last_instdone = instdone;
-		dev_priv->last_instdone1 = instdone1;
+		memcpy(dev_priv->prev_instdone, instdone, sizeof(instdone));
 	}
 
 repeat:

drivers/gpu/drm/i915/i915_reg.h

@@ -479,6 +479,11 @@
 #define IPEIR_I965	0x02064
 #define IPEHR_I965	0x02068
 #define INSTDONE_I965	0x0206c
+#define GEN7_INSTDONE_1		0x0206c
+#define GEN7_SC_INSTDONE	0x07100
+#define GEN7_SAMPLER_INSTDONE	0x0e160
+#define GEN7_ROW_INSTDONE	0x0e164
+#define I915_NUM_INSTDONE_REG	4
 #define RING_IPEIR(base)	((base)+0x64)
 #define RING_IPEHR(base)	((base)+0x68)
 #define RING_INSTDONE(base)	((base)+0x6c)
@@ -501,6 +506,8 @@
 #define DMA_FADD_I8XX	0x020d0
 
 #define ERROR_GEN6	0x040a0
+#define GEN7_ERR_INT	0x44040
+#define   ERR_INT_MMIO_UNCLAIMED (1<<13)
 
 /* GM45+ chicken bits -- debug workaround bits that may be required
  * for various sorts of correct behavior.  The top 16 bits of each are
@@ -4248,7 +4255,15 @@
 #define G4X_HDMIW_HDMIEDID		0x6210C
 
 #define IBX_HDMIW_HDMIEDID_A		0xE2050
+#define IBX_HDMIW_HDMIEDID_B		0xE2150
+#define IBX_HDMIW_HDMIEDID(pipe) _PIPE(pipe, \
+					IBX_HDMIW_HDMIEDID_A, \
+					IBX_HDMIW_HDMIEDID_B)
 #define IBX_AUD_CNTL_ST_A		0xE20B4
+#define IBX_AUD_CNTL_ST_B		0xE21B4
+#define IBX_AUD_CNTL_ST(pipe) _PIPE(pipe, \
+					IBX_AUD_CNTL_ST_A, \
+					IBX_AUD_CNTL_ST_B)
 #define IBX_ELD_BUFFER_SIZE		(0x1f << 10)
 #define IBX_ELD_ADDRESS			(0x1f << 5)
 #define IBX_ELD_ACK			(1 << 4)
@@ -4257,7 +4272,15 @@
 #define IBX_CP_READYB			(1 << 1)
 
 #define CPT_HDMIW_HDMIEDID_A		0xE5050
+#define CPT_HDMIW_HDMIEDID_B		0xE5150
+#define CPT_HDMIW_HDMIEDID(pipe) _PIPE(pipe, \
+					CPT_HDMIW_HDMIEDID_A, \
+					CPT_HDMIW_HDMIEDID_B)
 #define CPT_AUD_CNTL_ST_A		0xE50B4
+#define CPT_AUD_CNTL_ST_B		0xE51B4
+#define CPT_AUD_CNTL_ST(pipe) _PIPE(pipe, \
+					CPT_AUD_CNTL_ST_A, \
+					CPT_AUD_CNTL_ST_B)
 #define CPT_AUD_CNTRL_ST2		0xE50C0
 
 /* These are the 4 32-bit write offset registers for each stream
@@ -4267,7 +4290,15 @@
 #define GEN7_SO_WRITE_OFFSET(n)		(0x5280 + (n) * 4)
 
 #define IBX_AUD_CONFIG_A			0xe2000
+#define IBX_AUD_CONFIG_B			0xe2100
+#define IBX_AUD_CFG(pipe) _PIPE(pipe, \
+					IBX_AUD_CONFIG_A, \
+					IBX_AUD_CONFIG_B)
 #define CPT_AUD_CONFIG_A			0xe5000
+#define CPT_AUD_CONFIG_B			0xe5100
+#define CPT_AUD_CFG(pipe) _PIPE(pipe, \
+					CPT_AUD_CONFIG_A, \
+					CPT_AUD_CONFIG_B)
 #define   AUD_CONFIG_N_VALUE_INDEX		(1 << 29)
 #define   AUD_CONFIG_N_PROG_ENABLE		(1 << 28)
 #define   AUD_CONFIG_UPPER_N_SHIFT		20
@@ -4278,6 +4309,54 @@
 #define   AUD_CONFIG_PIXEL_CLOCK_HDMI		(0xf << 16)
 #define   AUD_CONFIG_DISABLE_NCTS		(1 << 3)
 
+/* HSW Audio */
+#define   HSW_AUD_CONFIG_A		0x65000 /* Audio Configuration Transcoder A */
+#define   HSW_AUD_CONFIG_B		0x65100 /* Audio Configuration Transcoder B */
+#define   HSW_AUD_CFG(pipe) _PIPE(pipe, \
+					HSW_AUD_CONFIG_A, \
+					HSW_AUD_CONFIG_B)
+
+#define   HSW_AUD_MISC_CTRL_A		0x65010 /* Audio Misc Control Convert 1 */
+#define   HSW_AUD_MISC_CTRL_B		0x65110 /* Audio Misc Control Convert 2 */
+#define   HSW_AUD_MISC_CTRL(pipe) _PIPE(pipe, \
+					HSW_AUD_MISC_CTRL_A, \
+					HSW_AUD_MISC_CTRL_B)
+
+#define   HSW_AUD_DIP_ELD_CTRL_ST_A	0x650b4 /* Audio DIP and ELD Control State Transcoder A */
+#define   HSW_AUD_DIP_ELD_CTRL_ST_B	0x651b4 /* Audio DIP and ELD Control State Transcoder B */
+#define   HSW_AUD_DIP_ELD_CTRL(pipe) _PIPE(pipe, \
+					HSW_AUD_DIP_ELD_CTRL_ST_A, \
+					HSW_AUD_DIP_ELD_CTRL_ST_B)
+
+/* Audio Digital Converter */
+#define   HSW_AUD_DIG_CNVT_1		0x65080 /* Audio Converter 1 */
+#define   HSW_AUD_DIG_CNVT_2		0x65180 /* Audio Converter 1 */
+#define   AUD_DIG_CNVT(pipe) _PIPE(pipe, \
+					HSW_AUD_DIG_CNVT_1, \
+					HSW_AUD_DIG_CNVT_2)
+#define   DIP_PORT_SEL_MASK		0x3
+
+#define   HSW_AUD_EDID_DATA_A		0x65050
+#define   HSW_AUD_EDID_DATA_B		0x65150
+#define   HSW_AUD_EDID_DATA(pipe) _PIPE(pipe, \
+					HSW_AUD_EDID_DATA_A, \
+					HSW_AUD_EDID_DATA_B)
+
+#define   HSW_AUD_PIPE_CONV_CFG		0x6507c /* Audio pipe and converter configs */
+#define   HSW_AUD_PIN_ELD_CP_VLD	0x650c0 /* Audio ELD and CP Ready Status */
+#define   AUDIO_INACTIVE_C		(1<<11)
+#define   AUDIO_INACTIVE_B		(1<<7)
+#define   AUDIO_INACTIVE_A		(1<<3)
+#define   AUDIO_OUTPUT_ENABLE_A		(1<<2)
+#define   AUDIO_OUTPUT_ENABLE_B		(1<<6)
+#define   AUDIO_OUTPUT_ENABLE_C		(1<<10)
+#define   AUDIO_ELD_VALID_A		(1<<0)
+#define   AUDIO_ELD_VALID_B		(1<<4)
+#define   AUDIO_ELD_VALID_C		(1<<8)
+#define   AUDIO_CP_READY_A		(1<<1)
+#define   AUDIO_CP_READY_B		(1<<5)
+#define   AUDIO_CP_READY_C		(1<<9)
+
 /* HSW Power Wells */
 #define HSW_PWR_WELL_CTL1			0x45400 /* BIOS */
 #define HSW_PWR_WELL_CTL2			0x45404 /* Driver */

drivers/gpu/drm/i915/i915_trace.h

@@ -214,22 +214,18 @@ TRACE_EVENT(i915_gem_evict,
 );
 
 TRACE_EVENT(i915_gem_evict_everything,
-	    TP_PROTO(struct drm_device *dev, bool purgeable),
-	    TP_ARGS(dev, purgeable),
+	    TP_PROTO(struct drm_device *dev),
+	    TP_ARGS(dev),
 
 	    TP_STRUCT__entry(
 			     __field(u32, dev)
-			     __field(bool, purgeable)
 			    ),
 
 	    TP_fast_assign(
 			   __entry->dev = dev->primary->index;
-			   __entry->purgeable = purgeable;
 			  ),
 
-	    TP_printk("dev=%d%s",
-		      __entry->dev,
-		      __entry->purgeable ? ", purgeable only" : "")
+	    TP_printk("dev=%d", __entry->dev)
 );
 
 TRACE_EVENT(i915_gem_ring_dispatch,

drivers/gpu/drm/i915/intel_crt.c

@@ -547,14 +547,12 @@ intel_crt_detect(struct drm_connector *connector, bool force)
 		return connector->status;
 
 	/* for pre-945g platforms use load detect */
-	if (intel_get_load_detect_pipe(&crt->base, connector, NULL,
-				       &tmp)) {
+	if (intel_get_load_detect_pipe(connector, NULL, &tmp)) {
 		if (intel_crt_detect_ddc(connector))
 			status = connector_status_connected;
 		else
 			status = intel_crt_load_detect(crt);
-		intel_release_load_detect_pipe(&crt->base, connector,
-					       &tmp);
+		intel_release_load_detect_pipe(connector, &tmp);
 	} else
 		status = connector_status_unknown;
 
@@ -694,7 +692,7 @@ void intel_crt_init(struct drm_device *dev)
 	if (IS_HASWELL(dev))
 		crt->base.crtc_mask = (1 << 0);
 	else
-		crt->base.crtc_mask = (1 << 0) | (1 << 1);
+		crt->base.crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
 
 	if (IS_GEN2(dev))
 		connector->interlace_allowed = 0;

drivers/gpu/drm/i915/intel_ddi.c

@@ -713,8 +713,12 @@ void intel_ddi_mode_set(struct drm_encoder *encoder,
 		/* 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",
+		DRM_DEBUG_DRIVER("HDMI audio on pipe %c on DDI\n",
 				 pipe_name(intel_crtc->pipe));
+
+		/* write eld */
+		DRM_DEBUG_DRIVER("HDMI audio: write eld information\n");
+		intel_write_eld(encoder, adjusted_mode);
 	}
 
 	/* Enable PIPE_DDI_FUNC_CTL for the pipe to work in HDMI mode */

drivers/gpu/drm/i915/intel_dp.c

@@ -850,10 +850,8 @@ intel_dp_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
 	 * supposed to be read-only.
 	 */
 	intel_dp->DP = I915_READ(intel_dp->output_reg) & DP_DETECTED;
-	intel_dp->DP |=  DP_VOLTAGE_0_4 | DP_PRE_EMPHASIS_0;
 
 	/* Handle DP bits in common between all three register formats */
-
 	intel_dp->DP |= DP_VOLTAGE_0_4 | DP_PRE_EMPHASIS_0;
 
 	switch (intel_dp->lane_count) {

drivers/gpu/drm/i915/intel_drv.h

@@ -435,12 +435,10 @@ struct intel_load_detect_pipe {
 	bool load_detect_temp;
 	int dpms_mode;
 };
-extern bool intel_get_load_detect_pipe(struct intel_encoder *intel_encoder,
-				       struct drm_connector *connector,
+extern bool intel_get_load_detect_pipe(struct drm_connector *connector,
 				       struct drm_display_mode *mode,
 				       struct intel_load_detect_pipe *old);
-extern void intel_release_load_detect_pipe(struct intel_encoder *intel_encoder,
-					   struct drm_connector *connector,
+extern void intel_release_load_detect_pipe(struct drm_connector *connector,
 					   struct intel_load_detect_pipe *old);
 
 extern void intelfb_restore(void);

drivers/gpu/drm/i915/intel_dvo.c

@@ -115,9 +115,9 @@ static void intel_dvo_dpms(struct drm_encoder *encoder, int mode)
 	if (mode == DRM_MODE_DPMS_ON) {
 		I915_WRITE(dvo_reg, temp | DVO_ENABLE);
 		I915_READ(dvo_reg);
-		intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, mode);
+		intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, true);
 	} else {
-		intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, mode);
+		intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, false);
 		I915_WRITE(dvo_reg, temp & ~DVO_ENABLE);
 		I915_READ(dvo_reg);
 	}

drivers/gpu/drm/i915/intel_overlay.c

@@ -235,54 +235,6 @@ static int intel_overlay_do_wait_request(struct intel_overlay *overlay,
 	return 0;
 }
 
-/* Workaround for i830 bug where pipe a must be enable to change control regs */
-static int
-i830_activate_pipe_a(struct drm_device *dev)
-{
-	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct intel_crtc *crtc;
-	struct drm_crtc_helper_funcs *crtc_funcs;
-	struct drm_display_mode vesa_640x480 = {
-		DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
-			 752, 800, 0, 480, 489, 492, 525, 0,
-			 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC)
-	}, *mode;
-
-	crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[0]);
-	if (crtc->dpms_mode == DRM_MODE_DPMS_ON)
-		return 0;
-
-	/* most i8xx have pipe a forced on, so don't trust dpms mode */
-	if (I915_READ(_PIPEACONF) & PIPECONF_ENABLE)
-		return 0;
-
-	crtc_funcs = crtc->base.helper_private;
-	if (crtc_funcs->dpms == NULL)
-		return 0;
-
-	DRM_DEBUG_DRIVER("Enabling pipe A in order to enable overlay\n");
-
-	mode = drm_mode_duplicate(dev, &vesa_640x480);
-
-	if (!drm_crtc_helper_set_mode(&crtc->base, mode,
-				       crtc->base.x, crtc->base.y,
-				       crtc->base.fb))
-		return 0;
-
-	crtc_funcs->dpms(&crtc->base, DRM_MODE_DPMS_ON);
-	return 1;
-}
-
-static void
-i830_deactivate_pipe_a(struct drm_device *dev)
-{
-	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[0];
-	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
-
-	crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
-}
-
 /* overlay needs to be disable in OCMD reg */
 static int intel_overlay_on(struct intel_overlay *overlay)
 {
@@ -290,17 +242,12 @@ static int intel_overlay_on(struct intel_overlay *overlay)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
 	struct drm_i915_gem_request *request;
-	int pipe_a_quirk = 0;
 	int ret;
 
 	BUG_ON(overlay->active);
 	overlay->active = 1;
 
-	if (IS_I830(dev)) {
-		pipe_a_quirk = i830_activate_pipe_a(dev);
-		if (pipe_a_quirk < 0)
-			return pipe_a_quirk;
-	}
+	WARN_ON(IS_I830(dev) && !(dev_priv->quirks & QUIRK_PIPEA_FORCE));
 
 	request = kzalloc(sizeof(*request), GFP_KERNEL);
 	if (request == NULL) {
@@ -322,9 +269,6 @@ static int intel_overlay_on(struct intel_overlay *overlay)
 
 	ret = intel_overlay_do_wait_request(overlay, request, NULL);
 out:
-	if (pipe_a_quirk)
-		i830_deactivate_pipe_a(dev);
-
 	return ret;
 }
 
@@ -1439,7 +1383,7 @@ void intel_setup_overlay(struct drm_device *dev)
 		}
 		overlay->flip_addr = reg_bo->phys_obj->handle->busaddr;
 	} else {
-		ret = i915_gem_object_pin(reg_bo, PAGE_SIZE, true);
+		ret = i915_gem_object_pin(reg_bo, PAGE_SIZE, true, false);
 		if (ret) {
 			DRM_ERROR("failed to pin overlay register bo\n");
 			goto out_free_bo;

drivers/gpu/drm/i915/intel_pm.c

@@ -2138,7 +2138,7 @@ intel_alloc_context_page(struct drm_device *dev)
 		return NULL;
 	}
 
-	ret = i915_gem_object_pin(ctx, 4096, true);
+	ret = i915_gem_object_pin(ctx, 4096, true, false);
 	if (ret) {
 		DRM_ERROR("failed to pin power context: %d\n", ret);
 		goto err_unref;
@@ -2372,6 +2372,11 @@ int intel_enable_rc6(const struct drm_device *dev)
 		return i915_enable_rc6;
 
 	if (INTEL_INFO(dev)->gen == 5) {
+#ifdef CONFIG_INTEL_IOMMU
+		/* Disable rc6 on ilk if VT-d is on. */
+		if (intel_iommu_gfx_mapped)
+			return false;
+#endif
 		DRM_DEBUG_DRIVER("Ironlake: only RC6 available\n");
 		return INTEL_RC6_ENABLE;
 	}

drivers/gpu/drm/i915/intel_ringbuffer.c

@@ -391,7 +391,7 @@ init_pipe_control(struct intel_ring_buffer *ring)
 
 	i915_gem_object_set_cache_level(obj, I915_CACHE_LLC);
 
-	ret = i915_gem_object_pin(obj, 4096, true);
+	ret = i915_gem_object_pin(obj, 4096, true, false);
 	if (ret)
 		goto err_unref;
 
@@ -979,7 +979,7 @@ static int init_status_page(struct intel_ring_buffer *ring)
 
 	i915_gem_object_set_cache_level(obj, I915_CACHE_LLC);
 
-	ret = i915_gem_object_pin(obj, 4096, true);
+	ret = i915_gem_object_pin(obj, 4096, true, false);
 	if (ret != 0) {
 		goto err_unref;
 	}
@@ -1036,7 +1036,7 @@ static int intel_init_ring_buffer(struct drm_device *dev,
 
 	ring->obj = obj;
 
-	ret = i915_gem_object_pin(obj, PAGE_SIZE, true);
+	ret = i915_gem_object_pin(obj, PAGE_SIZE, true, false);
 	if (ret)
 		goto err_unref;
 

drivers/gpu/drm/i915/intel_tv.c

@@ -1303,12 +1303,9 @@ intel_tv_detect(struct drm_connector *connector, bool force)
 	if (force) {
 		struct intel_load_detect_pipe tmp;
 
-		if (intel_get_load_detect_pipe(&intel_tv->base, connector,
-					       &mode, &tmp)) {
+		if (intel_get_load_detect_pipe(connector, &mode, &tmp)) {
 			type = intel_tv_detect_type(intel_tv, connector);
-			intel_release_load_detect_pipe(&intel_tv->base,
-						       connector,
-						       &tmp);
+			intel_release_load_detect_pipe(connector, &tmp);
 		} else
 			return connector_status_unknown;
 	} else

drivers/gpu/drm/udl/udl_fb.c

@@ -13,6 +13,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/fb.h>
+#include <linux/dma-buf.h>
 
 #include "drmP.h"
 #include "drm.h"
@@ -377,16 +378,33 @@ static int udl_user_framebuffer_dirty(struct drm_framebuffer *fb,
 {
 	struct udl_framebuffer *ufb = to_udl_fb(fb);
 	int i;
+	int ret = 0;
 
 	if (!ufb->active_16)
 		return 0;
 
+	if (ufb->obj->base.import_attach) {
+		ret = dma_buf_begin_cpu_access(ufb->obj->base.import_attach->dmabuf,
+					       0, ufb->obj->base.size,
+					       DMA_FROM_DEVICE);
+		if (ret)
+			return ret;
+	}
+
 	for (i = 0; i < num_clips; i++) {
-		udl_handle_damage(ufb, clips[i].x1, clips[i].y1,
+		ret = udl_handle_damage(ufb, clips[i].x1, clips[i].y1,
 				  clips[i].x2 - clips[i].x1,
 				  clips[i].y2 - clips[i].y1);
+		if (ret)
+			break;
 	}
-	return 0;
+
+	if (ufb->obj->base.import_attach) {
+		dma_buf_end_cpu_access(ufb->obj->base.import_attach->dmabuf,
+				       0, ufb->obj->base.size,
+				       DMA_FROM_DEVICE);
+	}
+	return ret;
 }
 
 static void udl_user_framebuffer_destroy(struct drm_framebuffer *fb)

drivers/gpu/drm/udl/udl_gem.c

@@ -181,11 +181,6 @@ int udl_gem_vmap(struct udl_gem_object *obj)
 	int ret;
 
 	if (obj->base.import_attach) {
-		ret = dma_buf_begin_cpu_access(obj->base.import_attach->dmabuf,
-					       0, obj->base.size, DMA_BIDIRECTIONAL);
-		if (ret)
-			return -EINVAL;
-
 		obj->vmapping = dma_buf_vmap(obj->base.import_attach->dmabuf);
 		if (!obj->vmapping)
 			return -ENOMEM;
@@ -206,8 +201,6 @@ void udl_gem_vunmap(struct udl_gem_object *obj)
 {
 	if (obj->base.import_attach) {
 		dma_buf_vunmap(obj->base.import_attach->dmabuf, obj->vmapping);
-		dma_buf_end_cpu_access(obj->base.import_attach->dmabuf, 0,
-				       obj->base.size, DMA_BIDIRECTIONAL);
 		return;
 	}
 

include/drm/i915_drm.h

@@ -312,6 +312,7 @@ typedef struct drm_i915_irq_wait {
 #define I915_PARAM_HAS_ALIASING_PPGTT	 18
 #define I915_PARAM_HAS_WAIT_TIMEOUT	 19
 #define I915_PARAM_HAS_SEMAPHORES	 20
+#define I915_PARAM_HAS_PRIME_VMAP_FLUSH	 21
 
 typedef struct drm_i915_getparam {
 	int param;