diff --git a/drivers/video/drm/drm_atomic.c b/drivers/video/drm/drm_atomic.c
index d1a39f85d..042747883 100644
--- a/drivers/video/drm/drm_atomic.c
+++ b/drivers/video/drm/drm_atomic.c
@@ -150,7 +150,7 @@ void drm_atomic_state_default_clear(struct drm_atomic_state *state)
 	for (i = 0; i < state->num_connector; i++) {
 		struct drm_connector *connector = state->connectors[i];
 
-		if (!connector)
+		if (!connector || !connector->funcs)
 			continue;
 
 		/*
@@ -367,6 +367,8 @@ int drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state,
 		drm_property_unreference_blob(state->mode_blob);
 	state->mode_blob = NULL;
 
+	memset(&state->mode, 0, sizeof(state->mode));
+
 	if (blob) {
 		if (blob->length != sizeof(struct drm_mode_modeinfo) ||
 		    drm_mode_convert_umode(&state->mode,
@@ -379,7 +381,6 @@ int drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state,
 		DRM_DEBUG_ATOMIC("Set [MODE:%s] for CRTC state %p\n",
 				 state->mode.name, state);
 	} else {
-		memset(&state->mode, 0, sizeof(state->mode));
 		state->enable = false;
 		DRM_DEBUG_ATOMIC("Set [NOMODE] for CRTC state %p\n",
 				 state);
diff --git a/drivers/video/drm/drm_cache.c b/drivers/video/drm/drm_cache.c
index 1ae5c7cad..9bd5afa55 100644
--- a/drivers/video/drm/drm_cache.c
+++ b/drivers/video/drm/drm_cache.c
@@ -130,6 +130,7 @@ drm_clflush_virt_range(void *addr, unsigned long length)
 		mb();
 		for (; addr < end; addr += size)
 			clflush(addr);
+		clflush(end - 1); /* force serialisation */
 		mb();
 		return;
 	}
diff --git a/drivers/video/drm/drm_crtc.c b/drivers/video/drm/drm_crtc.c
index 50e21706e..52a58dce8 100644
--- a/drivers/video/drm/drm_crtc.c
+++ b/drivers/video/drm/drm_crtc.c
@@ -2685,8 +2685,6 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
 			goto out;
 		}
 
-		drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
-
 		/*
 		 * Check whether the primary plane supports the fb pixel format.
 		 * Drivers not implementing the universal planes API use a
@@ -2743,10 +2741,10 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
 
 		for (i = 0; i < crtc_req->count_connectors; i++) {
 			set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
-//           if (get_user(out_id, &set_connectors_ptr[i])) {
-//               ret = -EFAULT;
-//               goto out;
-//           }
+			if (get_user(out_id, &set_connectors_ptr[i])) {
+				ret = -EFAULT;
+				goto out;
+			}
 
 			connector = drm_connector_find(dev, out_id);
 			if (!connector) {
@@ -3420,7 +3418,6 @@ out_err1:
 	return ret;
 }
 
-
 /**
  * drm_fb_release - remove and free the FBs on this file
  * @priv: drm file for the ioctl
diff --git a/drivers/video/drm/drm_dp_helper.c b/drivers/video/drm/drm_dp_helper.c
index cf8960709..92e740011 100644
--- a/drivers/video/drm/drm_dp_helper.c
+++ b/drivers/video/drm/drm_dp_helper.c
@@ -178,7 +178,7 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request,
 {
 	struct drm_dp_aux_msg msg;
 	unsigned int retry;
-	int err;
+	int err = 0;
 
 	memset(&msg, 0, sizeof(msg));
 	msg.address = offset;
@@ -186,6 +186,8 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request,
 	msg.buffer = buffer;
 	msg.size = size;
 
+	mutex_lock(&aux->hw_mutex);
+
 	/*
 	 * The specification doesn't give any recommendation on how often to
 	 * retry native transactions. We used to retry 7 times like for
@@ -194,25 +196,24 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request,
 	 */
 	for (retry = 0; retry < 32; retry++) {
 
-		mutex_lock(&aux->hw_mutex);
 		err = aux->transfer(aux, &msg);
-		mutex_unlock(&aux->hw_mutex);
 		if (err < 0) {
 			if (err == -EBUSY)
 				continue;
 
-			return err;
+			goto unlock;
 		}
 
 
 		switch (msg.reply & DP_AUX_NATIVE_REPLY_MASK) {
 		case DP_AUX_NATIVE_REPLY_ACK:
 			if (err < size)
-				return -EPROTO;
-			return err;
+				err = -EPROTO;
+			goto unlock;
 
 		case DP_AUX_NATIVE_REPLY_NACK:
-			return -EIO;
+			err = -EIO;
+			goto unlock;
 
 		case DP_AUX_NATIVE_REPLY_DEFER:
 			usleep_range(AUX_RETRY_INTERVAL, AUX_RETRY_INTERVAL + 100);
@@ -221,7 +222,11 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request,
 	}
 
 	DRM_DEBUG_KMS("too many retries, giving up\n");
-	return -EIO;
+	err = -EIO;
+
+unlock:
+	mutex_unlock(&aux->hw_mutex);
+	return err;
 }
 
 /**
@@ -543,9 +548,7 @@ static int drm_dp_i2c_do_msg(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
 	int max_retries = max(7, drm_dp_i2c_retry_count(msg, dp_aux_i2c_speed_khz));
 
 	for (retry = 0, defer_i2c = 0; retry < (max_retries + defer_i2c); retry++) {
-		mutex_lock(&aux->hw_mutex);
 		ret = aux->transfer(aux, msg);
-		mutex_unlock(&aux->hw_mutex);
 		if (ret < 0) {
 			if (ret == -EBUSY)
 				continue;
@@ -684,6 +687,8 @@ static int drm_dp_i2c_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs,
 
 	memset(&msg, 0, sizeof(msg));
 
+	mutex_lock(&aux->hw_mutex);
+
 	for (i = 0; i < num; i++) {
 		msg.address = msgs[i].addr;
 		drm_dp_i2c_msg_set_request(&msg, &msgs[i]);
@@ -738,6 +743,8 @@ static int drm_dp_i2c_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs,
 	msg.size = 0;
 	(void)drm_dp_i2c_do_msg(aux, &msg);
 
+	mutex_unlock(&aux->hw_mutex);
+
 	return err;
 }
 
diff --git a/drivers/video/drm/drm_dp_mst_topology.c b/drivers/video/drm/drm_dp_mst_topology.c
index 6738e1a42..2f139e868 100644
--- a/drivers/video/drm/drm_dp_mst_topology.c
+++ b/drivers/video/drm/drm_dp_mst_topology.c
@@ -1672,14 +1672,20 @@ static int drm_dp_payload_send_msg(struct drm_dp_mst_topology_mgr *mgr,
 	struct drm_dp_mst_branch *mstb;
 	int len, ret, port_num;
 
+	port = drm_dp_get_validated_port_ref(mgr, port);
+	if (!port)
+		return -EINVAL;
+
 	port_num = port->port_num;
 	mstb = drm_dp_get_validated_mstb_ref(mgr, port->parent);
 	if (!mstb) {
 		mstb = drm_dp_get_last_connected_port_and_mstb(mgr, port->parent, &port_num);
 
-	if (!mstb)
+		if (!mstb) {
+			drm_dp_put_port(port);
 		return -EINVAL;
 	}
+	}
 
 	txmsg = kzalloc(sizeof(*txmsg), GFP_KERNEL);
 	if (!txmsg) {
@@ -1704,6 +1710,7 @@ static int drm_dp_payload_send_msg(struct drm_dp_mst_topology_mgr *mgr,
 	kfree(txmsg);
 fail_put:
 	drm_dp_put_mst_branch_device(mstb);
+	drm_dp_put_port(port);
 	return ret;
 }
 
@@ -1786,6 +1793,11 @@ int drm_dp_update_payload_part1(struct drm_dp_mst_topology_mgr *mgr)
 		req_payload.start_slot = cur_slots;
 		if (mgr->proposed_vcpis[i]) {
 			port = container_of(mgr->proposed_vcpis[i], struct drm_dp_mst_port, vcpi);
+			port = drm_dp_get_validated_port_ref(mgr, port);
+			if (!port) {
+				mutex_unlock(&mgr->payload_lock);
+				return -EINVAL;
+			}
 			req_payload.num_slots = mgr->proposed_vcpis[i]->num_slots;
 		} else {
 			port = NULL;
@@ -1811,6 +1823,9 @@ int drm_dp_update_payload_part1(struct drm_dp_mst_topology_mgr *mgr)
 			mgr->payloads[i].payload_state = req_payload.payload_state;
 		}
 		cur_slots += req_payload.num_slots;
+
+		if (port)
+			drm_dp_put_port(port);
 	}
 
 	for (i = 0; i < mgr->max_payloads; i++) {
@@ -2114,6 +2129,8 @@ int drm_dp_mst_topology_mgr_resume(struct drm_dp_mst_topology_mgr *mgr)
 
 	if (mgr->mst_primary) {
 		int sret;
+		u8 guid[16];
+
 		sret = drm_dp_dpcd_read(mgr->aux, DP_DPCD_REV, mgr->dpcd, DP_RECEIVER_CAP_SIZE);
 		if (sret != DP_RECEIVER_CAP_SIZE) {
 			DRM_DEBUG_KMS("dpcd read failed - undocked during suspend?\n");
@@ -2128,6 +2145,16 @@ int drm_dp_mst_topology_mgr_resume(struct drm_dp_mst_topology_mgr *mgr)
 			ret = -1;
 			goto out_unlock;
 		}
+
+		/* Some hubs forget their guids after they resume */
+		sret = drm_dp_dpcd_read(mgr->aux, DP_GUID, guid, 16);
+		if (sret != 16) {
+			DRM_DEBUG_KMS("dpcd read failed - undocked during suspend?\n");
+			ret = -1;
+			goto out_unlock;
+		}
+		drm_dp_check_mstb_guid(mgr->mst_primary, guid);
+
 		ret = 0;
 	} else
 		ret = -1;
diff --git a/drivers/video/drm/drm_edid.c b/drivers/video/drm/drm_edid.c
index 8a9a5bf6a..b258303f4 100644
--- a/drivers/video/drm/drm_edid.c
+++ b/drivers/video/drm/drm_edid.c
@@ -73,6 +73,8 @@
 #define EDID_QUIRK_FORCE_8BPC			(1 << 8)
 /* Force 12bpc */
 #define EDID_QUIRK_FORCE_12BPC			(1 << 9)
+/* Force 6bpc */
+#define EDID_QUIRK_FORCE_6BPC			(1 << 10)
 
 struct detailed_mode_closure {
 	struct drm_connector *connector;
@@ -99,6 +101,9 @@ static struct edid_quirk {
 	/* Unknown Acer */
 	{ "ACR", 2423, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
 
+	/* AEO model 0 reports 8 bpc, but is a 6 bpc panel */
+	{ "AEO", 0, EDID_QUIRK_FORCE_6BPC },
+
 	/* Belinea 10 15 55 */
 	{ "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 },
 	{ "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 },
@@ -3820,6 +3825,9 @@ int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
 
 	drm_add_display_info(edid, &connector->display_info, connector);
 
+	if (quirks & EDID_QUIRK_FORCE_6BPC)
+		connector->display_info.bpc = 6;
+
 	if (quirks & EDID_QUIRK_FORCE_8BPC)
 		connector->display_info.bpc = 8;
 
diff --git a/drivers/video/drm/drm_fb_helper.c b/drivers/video/drm/drm_fb_helper.c
index 525bbd6b7..7b77441d9 100644
--- a/drivers/video/drm/drm_fb_helper.c
+++ b/drivers/video/drm/drm_fb_helper.c
@@ -431,7 +431,6 @@ static bool drm_fb_helper_is_bound(struct drm_fb_helper *fb_helper)
 			bound++;
 	}
 
-    dbgprintf("%s bound %d crtcs_bound %d\n", __FUNCTION__, bound, crtcs_bound);
 	if (bound < crtcs_bound)
 		return false;
 
@@ -1588,7 +1587,6 @@ static int drm_pick_crtcs(struct drm_fb_helper *fb_helper,
 			  int n, int width, int height)
 {
 	int c, o;
-	struct drm_device *dev = fb_helper->dev;
 	struct drm_connector *connector;
 	const struct drm_connector_helper_funcs *connector_funcs;
 	struct drm_encoder *encoder;
@@ -1607,7 +1605,7 @@ static int drm_pick_crtcs(struct drm_fb_helper *fb_helper,
 	if (modes[n] == NULL)
 		return best_score;
 
-	crtcs = kzalloc(dev->mode_config.num_connector *
+	crtcs = kzalloc(fb_helper->connector_count *
 			sizeof(struct drm_fb_helper_crtc *), GFP_KERNEL);
 	if (!crtcs)
 		return best_score;
@@ -1653,7 +1651,7 @@ static int drm_pick_crtcs(struct drm_fb_helper *fb_helper,
 		if (score > best_score) {
 			best_score = score;
 			memcpy(best_crtcs, crtcs,
-			       dev->mode_config.num_connector *
+			       fb_helper->connector_count *
 			       sizeof(struct drm_fb_helper_crtc *));
 		}
 	}
diff --git a/drivers/video/drm/drm_gem.c b/drivers/video/drm/drm_gem.c
index 9794e1db2..0be471c1a 100644
--- a/drivers/video/drm/drm_gem.c
+++ b/drivers/video/drm/drm_gem.c
@@ -253,8 +253,8 @@ drm_gem_handle_delete(struct drm_file *filp, u32 handle)
 
 	if (dev->driver->gem_close_object)
 		dev->driver->gem_close_object(obj, filp);
-	drm_gem_object_handle_unreference_unlocked(obj);
 
+	drm_gem_object_handle_unreference_unlocked(obj);
 	return 0;
 }
 EXPORT_SYMBOL(drm_gem_handle_delete);
diff --git a/drivers/video/drm/drm_irq.c b/drivers/video/drm/drm_irq.c
index 2a004141e..b9f46f688 100644
--- a/drivers/video/drm/drm_irq.c
+++ b/drivers/video/drm/drm_irq.c
@@ -1239,6 +1239,7 @@ void drm_vblank_off(struct drm_device *dev, unsigned int pipe)
 	DRM_DEBUG_VBL("crtc %d, vblank enabled %d, inmodeset %d\n",
 		      pipe, vblank->enabled, vblank->inmodeset);
 	vblank_disable_and_save(dev, pipe);
+
 	wake_up(&vblank->queue);
 
 	/*
diff --git a/drivers/video/drm/drm_modes.c b/drivers/video/drm/drm_modes.c
index b452719ab..0dc572bbc 100644
--- a/drivers/video/drm/drm_modes.c
+++ b/drivers/video/drm/drm_modes.c
@@ -1487,6 +1487,8 @@ int drm_mode_convert_umode(struct drm_display_mode *out,
 	if (out->status != MODE_OK)
 		goto out;
 
+	drm_mode_set_crtcinfo(out, CRTC_INTERLACE_HALVE_V);
+
 	ret = 0;
 
 out:
diff --git a/drivers/video/drm/drm_stub.c b/drivers/video/drm/drm_stub.c
index 75390d560..6f60701b5 100644
--- a/drivers/video/drm/drm_stub.c
+++ b/drivers/video/drm/drm_stub.c
@@ -32,6 +32,7 @@
 #include <linux/slab.h>
 #include <drm/drmP.h>
 #include <drm/drm_core.h>
+#include "drm_internal.h"
 
 unsigned int drm_debug = 0;	/* 1 to enable debug output */
 EXPORT_SYMBOL(drm_debug);
diff --git a/drivers/video/drm/i915/Gtt/intel-agp.c b/drivers/video/drm/i915/Gtt/intel-agp.c
index 20d4dba32..b23ff2b68 100644
--- a/drivers/video/drm/i915/Gtt/intel-agp.c
+++ b/drivers/video/drm/i915/Gtt/intel-agp.c
@@ -7,6 +7,7 @@
 #include <linux/gfp.h>
 #include <linux/pci.h>
 #include <linux/slab.h>
+#include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/agp_backend.h>
 #include "agp.h"
diff --git a/drivers/video/drm/i915/Gtt/intel-gtt.c b/drivers/video/drm/i915/Gtt/intel-gtt.c
index dc5509e4b..e284d1de7 100644
--- a/drivers/video/drm/i915/Gtt/intel-gtt.c
+++ b/drivers/video/drm/i915/Gtt/intel-gtt.c
@@ -582,6 +582,9 @@ static int intel_gtt_init(void)
 	gtt_map_size = intel_private.gtt_total_entries * 4;
 
 	intel_private.gtt = NULL;
+	if (intel_gtt_can_wc())
+		intel_private.gtt = ioremap_wc(intel_private.gtt_phys_addr,
+					       gtt_map_size);
 	if (intel_private.gtt == NULL)
 		intel_private.gtt = ioremap(intel_private.gtt_phys_addr,
 					    gtt_map_size);
@@ -954,7 +957,7 @@ static void intel_i9xx_setup_flush(void)
 	}
 
 	if (intel_private.ifp_resource.start)
-		intel_private.i9xx_flush_page = ioremap(intel_private.ifp_resource.start, PAGE_SIZE);
+		intel_private.i9xx_flush_page = ioremap_nocache(intel_private.ifp_resource.start, PAGE_SIZE);
 	if (!intel_private.i9xx_flush_page)
 		dev_err(&intel_private.pcidev->dev,
 			"can't ioremap flush page - no chipset flushing\n");
diff --git a/drivers/video/drm/i915/Makefile b/drivers/video/drm/i915/Makefile
index c1ec7c09e..b49058bd7 100644
--- a/drivers/video/drm/i915/Makefile
+++ b/drivers/video/drm/i915/Makefile
@@ -16,7 +16,7 @@ INCLUDES =	-I$(DRV_INCLUDES)	\
 		-I$(DRV_INCLUDES)/drm -I./ -I$(DRV_INCLUDES)
 
 CFLAGS= -c -O2 $(INCLUDES) $(DEFINES) -march=i686 -fno-ident -msse2 -fomit-frame-pointer -fno-builtin-printf
-CFLAGS+= -mno-stack-arg-probe -mno-ms-bitfields
+CFLAGS+= -mno-stack-arg-probe -mpreferred-stack-boundary=2 -mincoming-stack-boundary=2 -mno-ms-bitfields
 
 LIBPATH:= $(DDK_TOPDIR)
 
diff --git a/drivers/video/drm/i915/getopt.c b/drivers/video/drm/i915/getopt.c
index f19da3bcc..ac7fadb71 100644
--- a/drivers/video/drm/i915/getopt.c
+++ b/drivers/video/drm/i915/getopt.c
@@ -43,7 +43,9 @@
 #endif
 
 #include "ansidecl.h"
-#include <stdio.h>
+#define  NULL (void*)0
+
+//#include <stdio.h>
 
 /* Comment out all this code if we are using the GNU C Library, and are not
    actually compiling the library itself.  This code is part of the GNU C
diff --git a/drivers/video/drm/i915/getopt1.c b/drivers/video/drm/i915/getopt1.c
index 255b14456..9954e7eac 100644
--- a/drivers/video/drm/i915/getopt1.c
+++ b/drivers/video/drm/i915/getopt1.c
@@ -32,7 +32,7 @@
 #endif
 #endif
 
-#include <stdio.h>
+//#include <stdio.h>
 
 #include "getopt.h"
 
diff --git a/drivers/video/drm/i915/i915_dma.c b/drivers/video/drm/i915/i915_dma.c
index bda417092..cd8389c0c 100644
--- a/drivers/video/drm/i915/i915_dma.c
+++ b/drivers/video/drm/i915/i915_dma.c
@@ -40,7 +40,7 @@
 #include "i915_trace.h"
 #include <linux/pci.h>
 #include <linux/vgaarb.h>
-//#include <linux/acpi.h>
+#include <linux/acpi.h>
 //#include <linux/pnp.h>
 //#include <linux/vga_switcheroo.h>
 #include <linux/slab.h>
@@ -230,8 +230,6 @@ intel_setup_mchbar(struct drm_device *dev)
 */
 	dev_priv->mchbar_need_disable = true;
 
-	DRM_INFO("enable MCHBAR\n");
-
 	/* Space is allocated or reserved, so enable it. */
 	if (IS_I915G(dev) || IS_I915GM(dev)) {
 		pci_write_config_dword(dev_priv->bridge_dev, DEVEN_REG,
@@ -313,6 +311,8 @@ static int i915_load_modeset_init(struct drm_device *dev)
 	if (ret)
 		goto cleanup_gem_stolen;
 
+	intel_setup_gmbus(dev);
+
 	/* Important: The output setup functions called by modeset_init need
 	 * working irqs for e.g. gmbus and dp aux transfers. */
 	intel_modeset_init(dev);
@@ -922,7 +922,6 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
 
 	/* Try to make sure MCHBAR is enabled before poking at it */
 	intel_setup_mchbar(dev);
-	intel_setup_gmbus(dev);
 	intel_opregion_setup(dev);
 
 	i915_gem_load(dev);
@@ -1066,7 +1065,6 @@ int i915_driver_unload(struct drm_device *dev)
 
 	intel_csr_ucode_fini(dev);
 
-	intel_teardown_gmbus(dev);
 	intel_teardown_mchbar(dev);
 
 	destroy_workqueue(dev_priv->hotplug.dp_wq);
diff --git a/drivers/video/drm/i915/i915_drv.c b/drivers/video/drm/i915/i915_drv.c
index c8d9f72a7..4f3a55105 100644
--- a/drivers/video/drm/i915/i915_drv.c
+++ b/drivers/video/drm/i915/i915_drv.c
@@ -28,6 +28,7 @@
  */
 
 #include <linux/device.h>
+#include <linux/acpi.h>
 #include <drm/drmP.h>
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
diff --git a/drivers/video/drm/i915/i915_drv.h b/drivers/video/drm/i915/i915_drv.h
index 4e3e82fdb..6ad997365 100644
--- a/drivers/video/drm/i915/i915_drv.h
+++ b/drivers/video/drm/i915/i915_drv.h
@@ -2647,6 +2647,7 @@ struct drm_i915_cmd_table {
 extern const struct drm_ioctl_desc i915_ioctls[];
 extern int i915_max_ioctl;
 
+extern int i915_suspend_switcheroo(struct drm_device *dev, pm_message_t state);
 extern int i915_resume_switcheroo(struct drm_device *dev);
 
 /* i915_params.c */
diff --git a/drivers/video/drm/i915/i915_gem.c b/drivers/video/drm/i915/i915_gem.c
index 48b1f727a..4471a7890 100644
--- a/drivers/video/drm/i915/i915_gem.c
+++ b/drivers/video/drm/i915/i915_gem.c
@@ -34,9 +34,10 @@
 #include "intel_drv.h"
 #include <linux/shmem_fs.h>
 #include <linux/slab.h>
-//#include <linux/swap.h>
-#include <linux/scatterlist.h>
+#include <linux/swap.h>
 #include <linux/pci.h>
+#include <linux/dma-buf.h>
+
 #define RQ_BUG_ON(expr)
 
 extern int x86_clflush_size;
@@ -1261,7 +1262,7 @@ int i915_gem_request_add_to_client(struct drm_i915_gem_request *req,
 	list_add_tail(&req->client_list, &file_priv->mm.request_list);
 	spin_unlock(&file_priv->mm.lock);
 
-	req->pid = 1;
+    req->pid = (struct pid*)1;
 
 	return 0;
 }
@@ -1278,6 +1279,7 @@ i915_gem_request_remove_from_client(struct drm_i915_gem_request *request)
 	list_del(&request->client_list);
 	request->file_priv = NULL;
 	spin_unlock(&file_priv->mm.lock);
+	request->pid = NULL;
 }
 
 static void i915_gem_request_retire(struct drm_i915_gem_request *request)
@@ -1306,6 +1308,7 @@ __i915_gem_request_retire__upto(struct drm_i915_gem_request *req)
 	struct intel_engine_cs *engine = req->ring;
 	struct drm_i915_gem_request *tmp;
 
+	lockdep_assert_held(&engine->dev->struct_mutex);
 
 	if (list_empty(&req->list))
 		return;
diff --git a/drivers/video/drm/i915/i915_gem_gtt.c b/drivers/video/drm/i915/i915_gem_gtt.c
index 80e7cffbd..ffcc83241 100644
--- a/drivers/video/drm/i915/i915_gem_gtt.c
+++ b/drivers/video/drm/i915/i915_gem_gtt.c
@@ -2740,6 +2740,7 @@ void i915_global_gtt_cleanup(struct drm_device *dev)
 		struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
 
 		ppgtt->base.cleanup(&ppgtt->base);
+		kfree(ppgtt);
 	}
 
 	if (drm_mm_initialized(&vm->mm)) {
diff --git a/drivers/video/drm/i915/i915_reg.h b/drivers/video/drm/i915/i915_reg.h
index f538ae6db..a6a05ad4b 100644
--- a/drivers/video/drm/i915/i915_reg.h
+++ b/drivers/video/drm/i915/i915_reg.h
@@ -2838,7 +2838,14 @@ enum skl_disp_power_wells {
 #define GEN6_RP_STATE_CAP	(MCHBAR_MIRROR_BASE_SNB + 0x5998)
 #define BXT_RP_STATE_CAP        0x138170
 
-#define INTERVAL_1_28_US(us)	(((us) * 100) >> 7)
+/*
+ * Make these a multiple of magic 25 to avoid SNB (eg. Dell XPS
+ * 8300) freezing up around GPU hangs. Looks as if even
+ * scheduling/timer interrupts start misbehaving if the RPS
+ * EI/thresholds are "bad", leading to a very sluggish or even
+ * frozen machine.
+ */
+#define INTERVAL_1_28_US(us)	roundup(((us) * 100) >> 7, 25)
 #define INTERVAL_1_33_US(us)	(((us) * 3)   >> 2)
 #define INTERVAL_0_833_US(us)	(((us) * 6) / 5)
 #define GT_INTERVAL_FROM_US(dev_priv, us) (IS_GEN9(dev_priv) ? \
@@ -3233,19 +3240,20 @@ enum skl_disp_power_wells {
 
 #define PORT_HOTPLUG_STAT	(dev_priv->info.display_mmio_offset + 0x61114)
 /*
- * HDMI/DP bits are gen4+
+ * HDMI/DP bits are g4x+
  *
  * WARNING: Bspec for hpd status bits on gen4 seems to be completely confused.
  * Please check the detailed lore in the commit message for for experimental
  * evidence.
  */
-#define   PORTD_HOTPLUG_LIVE_STATUS_G4X		(1 << 29)
+/* Bspec says GM45 should match G4X/VLV/CHV, but reality disagrees */
+#define   PORTD_HOTPLUG_LIVE_STATUS_GM45	(1 << 29)
+#define   PORTC_HOTPLUG_LIVE_STATUS_GM45	(1 << 28)
+#define   PORTB_HOTPLUG_LIVE_STATUS_GM45	(1 << 27)
+/* G4X/VLV/CHV DP/HDMI bits again match Bspec */
+#define   PORTD_HOTPLUG_LIVE_STATUS_G4X		(1 << 27)
 #define   PORTC_HOTPLUG_LIVE_STATUS_G4X		(1 << 28)
-#define   PORTB_HOTPLUG_LIVE_STATUS_G4X		(1 << 27)
-/* VLV DP/HDMI bits again match Bspec */
-#define   PORTD_HOTPLUG_LIVE_STATUS_VLV		(1 << 27)
-#define   PORTC_HOTPLUG_LIVE_STATUS_VLV		(1 << 28)
-#define   PORTB_HOTPLUG_LIVE_STATUS_VLV		(1 << 29)
+#define   PORTB_HOTPLUG_LIVE_STATUS_G4X		(1 << 29)
 #define   PORTD_HOTPLUG_INT_STATUS		(3 << 21)
 #define   PORTD_HOTPLUG_INT_LONG_PULSE		(2 << 21)
 #define   PORTD_HOTPLUG_INT_SHORT_PULSE		(1 << 21)
@@ -7350,6 +7358,8 @@ enum skl_disp_power_wells {
 #define  TRANS_CLK_SEL_DISABLED		(0x0<<29)
 #define  TRANS_CLK_SEL_PORT(x)		(((x)+1)<<29)
 
+#define CDCLK_FREQ			0x46200
+
 #define TRANSA_MSA_MISC			0x60410
 #define TRANSB_MSA_MISC			0x61410
 #define TRANSC_MSA_MISC			0x62410
diff --git a/drivers/video/drm/i915/intel_bios.c b/drivers/video/drm/i915/intel_bios.c
index ce82f9c7d..d14bdc537 100644
--- a/drivers/video/drm/i915/intel_bios.c
+++ b/drivers/video/drm/i915/intel_bios.c
@@ -1351,3 +1351,42 @@ intel_parse_bios(struct drm_device *dev)
 
 	return 0;
 }
+
+/**
+ * intel_bios_is_port_present - is the specified digital port present
+ * @dev_priv:	i915 device instance
+ * @port:	port to check
+ *
+ * Return true if the device in %port is present.
+ */
+bool intel_bios_is_port_present(struct drm_i915_private *dev_priv, enum port port)
+{
+	static const struct {
+		u16 dp, hdmi;
+	} port_mapping[] = {
+		[PORT_B] = { DVO_PORT_DPB, DVO_PORT_HDMIB, },
+		[PORT_C] = { DVO_PORT_DPC, DVO_PORT_HDMIC, },
+		[PORT_D] = { DVO_PORT_DPD, DVO_PORT_HDMID, },
+		[PORT_E] = { DVO_PORT_DPE, DVO_PORT_HDMIE, },
+	};
+	int i;
+
+	/* FIXME maybe deal with port A as well? */
+	if (WARN_ON(port == PORT_A) || port >= ARRAY_SIZE(port_mapping))
+		return false;
+
+	if (!dev_priv->vbt.child_dev_num)
+		return false;
+
+	for (i = 0; i < dev_priv->vbt.child_dev_num; i++) {
+		const union child_device_config *p_child =
+			&dev_priv->vbt.child_dev[i];
+		if ((p_child->common.dvo_port == port_mapping[port].dp ||
+		     p_child->common.dvo_port == port_mapping[port].hdmi) &&
+		    (p_child->common.device_type & (DEVICE_TYPE_TMDS_DVI_SIGNALING |
+						    DEVICE_TYPE_DISPLAYPORT_OUTPUT)))
+			return true;
+	}
+
+	return false;
+}
diff --git a/drivers/video/drm/i915/intel_crt.c b/drivers/video/drm/i915/intel_crt.c
index acc98bdf6..672ea338a 100644
--- a/drivers/video/drm/i915/intel_crt.c
+++ b/drivers/video/drm/i915/intel_crt.c
@@ -248,8 +248,14 @@ static bool intel_crt_compute_config(struct intel_encoder *encoder,
 		pipe_config->has_pch_encoder = true;
 
 	/* LPT FDI RX only supports 8bpc. */
-	if (HAS_PCH_LPT(dev))
+	if (HAS_PCH_LPT(dev)) {
+		if (pipe_config->bw_constrained && pipe_config->pipe_bpp < 24) {
+			DRM_DEBUG_KMS("LPT only supports 24bpp\n");
+			return false;
+		}
+
 		pipe_config->pipe_bpp = 24;
+	}
 
 	/* FDI must always be 2.7 GHz */
 	if (HAS_DDI(dev)) {
diff --git a/drivers/video/drm/i915/intel_csr.c b/drivers/video/drm/i915/intel_csr.c
index 048fa6234..ba73f2c08 100644
--- a/drivers/video/drm/i915/intel_csr.c
+++ b/drivers/video/drm/i915/intel_csr.c
@@ -180,7 +180,8 @@ struct stepping_info {
 static const struct stepping_info skl_stepping_info[] = {
 		{'A', '0'}, {'B', '0'}, {'C', '0'},
 		{'D', '0'}, {'E', '0'}, {'F', '0'},
-		{'G', '0'}, {'H', '0'}, {'I', '0'}
+		{'G', '0'}, {'H', '0'}, {'I', '0'},
+		{'J', '0'}, {'K', '0'}
 };
 
 static struct stepping_info bxt_stepping_info[] = {
@@ -438,6 +439,8 @@ void intel_csr_ucode_init(struct drm_device *dev)
 		return;
 	}
 #if 0
+	DRM_DEBUG_KMS("Loading %s\n", csr->fw_path);
+
 	/*
 	 * Obtain a runtime pm reference, until CSR is loaded,
 	 * to avoid entering runtime-suspend.
diff --git a/drivers/video/drm/i915/intel_ddi.c b/drivers/video/drm/i915/intel_ddi.c
index 7e6158b88..1b72031a4 100644
--- a/drivers/video/drm/i915/intel_ddi.c
+++ b/drivers/video/drm/i915/intel_ddi.c
@@ -464,9 +464,17 @@ static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port,
 	} else if (IS_BROADWELL(dev)) {
 		ddi_translations_fdi = bdw_ddi_translations_fdi;
 		ddi_translations_dp = bdw_ddi_translations_dp;
+
+		if (dev_priv->edp_low_vswing) {
 		ddi_translations_edp = bdw_ddi_translations_edp;
+			n_edp_entries = ARRAY_SIZE(bdw_ddi_translations_edp);
+		} else {
+			ddi_translations_edp = bdw_ddi_translations_dp;
+			n_edp_entries = ARRAY_SIZE(bdw_ddi_translations_dp);
+		}
+
 		ddi_translations_hdmi = bdw_ddi_translations_hdmi;
-		n_edp_entries = ARRAY_SIZE(bdw_ddi_translations_edp);
+
 		n_dp_entries = ARRAY_SIZE(bdw_ddi_translations_dp);
 		n_hdmi_entries = ARRAY_SIZE(bdw_ddi_translations_hdmi);
 		hdmi_default_entry = 7;
@@ -3188,12 +3196,6 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
 	intel_ddi_clock_get(encoder, pipe_config);
 }
 
-static void intel_ddi_destroy(struct drm_encoder *encoder)
-{
-	/* HDMI has nothing special to destroy, so we can go with this. */
-	intel_dp_encoder_destroy(encoder);
-}
-
 static bool intel_ddi_compute_config(struct intel_encoder *encoder,
 				     struct intel_crtc_state *pipe_config)
 {
@@ -3212,7 +3214,8 @@ static bool intel_ddi_compute_config(struct intel_encoder *encoder,
 }
 
 static const struct drm_encoder_funcs intel_ddi_funcs = {
-	.destroy = intel_ddi_destroy,
+	.reset = intel_dp_encoder_reset,
+	.destroy = intel_dp_encoder_destroy,
 };
 
 static struct intel_connector *
@@ -3284,6 +3287,7 @@ void intel_ddi_init(struct drm_device *dev, enum port port)
 	intel_encoder->post_disable = intel_ddi_post_disable;
 	intel_encoder->get_hw_state = intel_ddi_get_hw_state;
 	intel_encoder->get_config = intel_ddi_get_config;
+	intel_encoder->suspend = intel_dp_encoder_suspend;
 
 	intel_dig_port->port = port;
 	intel_dig_port->saved_port_bits = I915_READ(DDI_BUF_CTL(port)) &
diff --git a/drivers/video/drm/i915/intel_display.c b/drivers/video/drm/i915/intel_display.c
index 21afb7f7e..72c3bfd0b 100644
--- a/drivers/video/drm/i915/intel_display.c
+++ b/drivers/video/drm/i915/intel_display.c
@@ -2950,13 +2950,13 @@ u32 intel_fb_stride_alignment(struct drm_device *dev, uint64_t fb_modifier,
 	}
 }
 
-unsigned long intel_plane_obj_offset(struct intel_plane *intel_plane,
+u32 intel_plane_obj_offset(struct intel_plane *intel_plane,
 				     struct drm_i915_gem_object *obj,
 				     unsigned int plane)
 {
 	const struct i915_ggtt_view *view = &i915_ggtt_view_normal;
 	struct i915_vma *vma;
-	unsigned char *offset;
+	u64 offset;
 
 	if (intel_rotation_90_or_270(intel_plane->base.state->rotation))
 		view = &i915_ggtt_view_rotated;
@@ -2966,14 +2966,16 @@ unsigned long intel_plane_obj_offset(struct intel_plane *intel_plane,
 		view->type))
 		return -1;
 
-	offset = (unsigned char *)vma->node.start;
+	offset = vma->node.start;
 
 	if (plane == 1) {
 		offset += vma->ggtt_view.rotation_info.uv_start_page *
 			  PAGE_SIZE;
 	}
 
-	return (unsigned long)offset;
+	WARN_ON(upper_32_bits(offset));
+
+	return lower_32_bits(offset);
 }
 
 static void skl_detach_scaler(struct intel_crtc *intel_crtc, int id)
@@ -3099,7 +3101,7 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
 	u32 tile_height, plane_offset, plane_size;
 	unsigned int rotation;
 	int x_offset, y_offset;
-	unsigned long surf_addr;
+	u32 surf_addr;
 	struct intel_crtc_state *crtc_state = intel_crtc->config;
 	struct intel_plane_state *plane_state;
 	int src_x = 0, src_y = 0, src_w = 0, src_h = 0;
@@ -4447,7 +4449,7 @@ int skl_update_scaler_crtc(struct intel_crtc_state *state)
 		      intel_crtc->base.base.id, intel_crtc->pipe, SKL_CRTC_INDEX);
 
 	return skl_update_scaler(state, !state->base.active, SKL_CRTC_INDEX,
-		&state->scaler_state.scaler_id, DRM_ROTATE_0,
+		&state->scaler_state.scaler_id, BIT(DRM_ROTATE_0),
 		state->pipe_src_w, state->pipe_src_h,
 		adjusted_mode->crtc_hdisplay, adjusted_mode->crtc_vdisplay);
 }
@@ -8228,12 +8230,14 @@ static void ironlake_init_pch_refclk(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_encoder *encoder;
+	int i;
 	u32 val, final;
 	bool has_lvds = false;
 	bool has_cpu_edp = false;
 	bool has_panel = false;
 	bool has_ck505 = false;
 	bool can_ssc = false;
+	bool using_ssc_source = false;
 
 	/* We need to take the global config into account */
 	for_each_intel_encoder(dev, encoder) {
@@ -8260,8 +8264,22 @@ static void ironlake_init_pch_refclk(struct drm_device *dev)
 		can_ssc = true;
 	}
 
-	DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n",
-		      has_panel, has_lvds, has_ck505);
+	/* Check if any DPLLs are using the SSC source */
+	for (i = 0; i < dev_priv->num_shared_dpll; i++) {
+		u32 temp = I915_READ(PCH_DPLL(i));
+
+		if (!(temp & DPLL_VCO_ENABLE))
+			continue;
+
+		if ((temp & PLL_REF_INPUT_MASK) ==
+		    PLLB_REF_INPUT_SPREADSPECTRUMIN) {
+			using_ssc_source = true;
+			break;
+		}
+	}
+
+	DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d using_ssc_source %d\n",
+		      has_panel, has_lvds, has_ck505, using_ssc_source);
 
 	/* Ironlake: try to setup display ref clock before DPLL
 	 * enabling. This is only under driver's control after
@@ -8298,9 +8316,9 @@ static void ironlake_init_pch_refclk(struct drm_device *dev)
 				final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
 		} else
 			final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
-	} else {
-		final |= DREF_SSC_SOURCE_DISABLE;
-		final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
+	} else if (using_ssc_source) {
+		final |= DREF_SSC_SOURCE_ENABLE;
+		final |= DREF_SSC1_ENABLE;
 	}
 
 	if (final == val)
@@ -8346,7 +8364,7 @@ static void ironlake_init_pch_refclk(struct drm_device *dev)
 		POSTING_READ(PCH_DREF_CONTROL);
 		udelay(200);
 	} else {
-		DRM_DEBUG_KMS("Disabling SSC entirely\n");
+		DRM_DEBUG_KMS("Disabling CPU source output\n");
 
 		val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
 
@@ -8357,6 +8375,9 @@ static void ironlake_init_pch_refclk(struct drm_device *dev)
 		POSTING_READ(PCH_DREF_CONTROL);
 		udelay(200);
 
+		if (!using_ssc_source) {
+			DRM_DEBUG_KMS("Disabling SSC source\n");
+
 		/* Turn off the SSC source */
 		val &= ~DREF_SSC_SOURCE_MASK;
 		val |= DREF_SSC_SOURCE_DISABLE;
@@ -8368,6 +8389,7 @@ static void ironlake_init_pch_refclk(struct drm_device *dev)
 		POSTING_READ(PCH_DREF_CONTROL);
 		udelay(200);
 	}
+	}
 
 	BUG_ON(val != final);
 }
@@ -9669,6 +9691,8 @@ static void broadwell_set_cdclk(struct drm_device *dev, int cdclk)
 	sandybridge_pcode_write(dev_priv, HSW_PCODE_DE_WRITE_FREQ_REQ, data);
 	mutex_unlock(&dev_priv->rps.hw_lock);
 
+	I915_WRITE(CDCLK_FREQ, DIV_ROUND_CLOSEST(cdclk, 1000) - 1);
+
 	intel_update_cdclk(dev);
 
 	WARN(cdclk != dev_priv->cdclk_freq,
@@ -11928,21 +11952,11 @@ connected_sink_compute_bpp(struct intel_connector *connector,
 		pipe_config->pipe_bpp = connector->base.display_info.bpc*3;
 	}
 
-	/* Clamp bpp to default limit on screens without EDID 1.4 */
-	if (connector->base.display_info.bpc == 0) {
-		int type = connector->base.connector_type;
-		int clamp_bpp = 24;
-
-		/* Fall back to 18 bpp when DP sink capability is unknown. */
-		if (type == DRM_MODE_CONNECTOR_DisplayPort ||
-		    type == DRM_MODE_CONNECTOR_eDP)
-			clamp_bpp = 18;
-
-		if (bpp > clamp_bpp) {
-			DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of %d\n",
-				      bpp, clamp_bpp);
-			pipe_config->pipe_bpp = clamp_bpp;
-		}
+	/* Clamp bpp to 8 on screens without EDID 1.4 */
+	if (connector->base.display_info.bpc == 0 && bpp > 24) {
+		DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
+			      bpp);
+		pipe_config->pipe_bpp = 24;
 	}
 }
 
@@ -14146,6 +14160,8 @@ static void intel_setup_outputs(struct drm_device *dev)
 		if (I915_READ(PCH_DP_D) & DP_DETECTED)
 			intel_dp_init(dev, PCH_DP_D, PORT_D);
 	} else if (IS_VALLEYVIEW(dev)) {
+		bool has_edp, has_port;
+
 		/*
 		 * The DP_DETECTED bit is the latched state of the DDC
 		 * SDA pin at boot. However since eDP doesn't require DDC
@@ -14154,27 +14170,37 @@ static void intel_setup_outputs(struct drm_device *dev)
 		 * Thus we can't rely on the DP_DETECTED bit alone to detect
 		 * eDP ports. Consult the VBT as well as DP_DETECTED to
 		 * detect eDP ports.
+		 *
+		 * Sadly the straps seem to be missing sometimes even for HDMI
+		 * ports (eg. on Voyo V3 - CHT x7-Z8700), so check both strap
+		 * and VBT for the presence of the port. Additionally we can't
+		 * trust the port type the VBT declares as we've seen at least
+		 * HDMI ports that the VBT claim are DP or eDP.
 		 */
-		if (I915_READ(VLV_HDMIB) & SDVO_DETECTED &&
-		    !intel_dp_is_edp(dev, PORT_B))
+		has_edp = intel_dp_is_edp(dev, PORT_B);
+		has_port = intel_bios_is_port_present(dev_priv, PORT_B);
+		if (I915_READ(VLV_DP_B) & DP_DETECTED || has_port)
+			has_edp &= intel_dp_init(dev, VLV_DP_B, PORT_B);
+		if ((I915_READ(VLV_HDMIB) & SDVO_DETECTED || has_port) && !has_edp)
 			intel_hdmi_init(dev, VLV_HDMIB, PORT_B);
-		if (I915_READ(VLV_DP_B) & DP_DETECTED ||
-		    intel_dp_is_edp(dev, PORT_B))
-			intel_dp_init(dev, VLV_DP_B, PORT_B);
 
-		if (I915_READ(VLV_HDMIC) & SDVO_DETECTED &&
-		    !intel_dp_is_edp(dev, PORT_C))
+		has_edp = intel_dp_is_edp(dev, PORT_C);
+		has_port = intel_bios_is_port_present(dev_priv, PORT_C);
+		if (I915_READ(VLV_DP_C) & DP_DETECTED || has_port)
+			has_edp &= intel_dp_init(dev, VLV_DP_C, PORT_C);
+		if ((I915_READ(VLV_HDMIC) & SDVO_DETECTED || has_port) && !has_edp)
 			intel_hdmi_init(dev, VLV_HDMIC, PORT_C);
-		if (I915_READ(VLV_DP_C) & DP_DETECTED ||
-		    intel_dp_is_edp(dev, PORT_C))
-			intel_dp_init(dev, VLV_DP_C, PORT_C);
 
 		if (IS_CHERRYVIEW(dev)) {
-			/* eDP not supported on port D, so don't check VBT */
-			if (I915_READ(CHV_HDMID) & SDVO_DETECTED)
-				intel_hdmi_init(dev, CHV_HDMID, PORT_D);
-			if (I915_READ(CHV_DP_D) & DP_DETECTED)
+			/*
+			 * eDP not supported on port D,
+			 * so no need to worry about it
+			 */
+			has_port = intel_bios_is_port_present(dev_priv, PORT_D);
+			if (I915_READ(CHV_DP_D) & DP_DETECTED || has_port)
 				intel_dp_init(dev, CHV_DP_D, PORT_D);
+			if (I915_READ(CHV_HDMID) & SDVO_DETECTED || has_port)
+				intel_hdmi_init(dev, CHV_HDMID, PORT_D);
 		}
 
 		intel_dsi_init(dev);
diff --git a/drivers/video/drm/i915/intel_dp.c b/drivers/video/drm/i915/intel_dp.c
index 8f6482929..fb74989ac 100644
--- a/drivers/video/drm/i915/intel_dp.c
+++ b/drivers/video/drm/i915/intel_dp.c
@@ -3626,7 +3626,6 @@ static bool
 intel_dp_reset_link_train(struct intel_dp *intel_dp, uint32_t *DP,
 			uint8_t dp_train_pat)
 {
-	if (!intel_dp->train_set_valid)
 		memset(intel_dp->train_set, 0, sizeof(intel_dp->train_set));
 	intel_dp_set_signal_levels(intel_dp, DP);
 	return intel_dp_set_link_train(intel_dp, DP, dp_train_pat);
@@ -3744,22 +3743,6 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
 			break;
 		}
 
-		/*
-		 * if we used previously trained voltage and pre-emphasis values
-		 * and we don't get clock recovery, reset link training values
-		 */
-		if (intel_dp->train_set_valid) {
-			DRM_DEBUG_KMS("clock recovery not ok, reset");
-			/* clear the flag as we are not reusing train set */
-			intel_dp->train_set_valid = false;
-			if (!intel_dp_reset_link_train(intel_dp, &DP,
-						       DP_TRAINING_PATTERN_1 |
-						       DP_LINK_SCRAMBLING_DISABLE)) {
-				DRM_ERROR("failed to enable link training\n");
-				return;
-			}
-			continue;
-		}
 
 		/* Check to see if we've tried the max voltage */
 		for (i = 0; i < intel_dp->lane_count; i++)
@@ -3852,7 +3835,6 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
 		/* Make sure clock is still ok */
 		if (!drm_dp_clock_recovery_ok(link_status,
 					      intel_dp->lane_count)) {
-			intel_dp->train_set_valid = false;
 			intel_dp_link_training_clock_recovery(intel_dp);
 			intel_dp_set_link_train(intel_dp, &DP,
 						training_pattern |
@@ -3869,7 +3851,6 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
 
 		/* Try 5 times, then try clock recovery if that fails */
 		if (tries > 5) {
-			intel_dp->train_set_valid = false;
 			intel_dp_link_training_clock_recovery(intel_dp);
 			intel_dp_set_link_train(intel_dp, &DP,
 						training_pattern |
@@ -3891,11 +3872,9 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
 
 	intel_dp->DP = DP;
 
-	if (channel_eq) {
-		intel_dp->train_set_valid = true;
+	if (channel_eq)
 		DRM_DEBUG_KMS("Channel EQ done. DP Training successful\n");
 	}
-}
 
 void intel_dp_stop_link_train(struct intel_dp *intel_dp)
 {
@@ -4611,20 +4590,20 @@ static bool g4x_digital_port_connected(struct drm_i915_private *dev_priv,
 	return I915_READ(PORT_HOTPLUG_STAT) & bit;
 }
 
-static bool vlv_digital_port_connected(struct drm_i915_private *dev_priv,
+static bool gm45_digital_port_connected(struct drm_i915_private *dev_priv,
 				       struct intel_digital_port *port)
 {
 	u32 bit;
 
 	switch (port->port) {
 	case PORT_B:
-		bit = PORTB_HOTPLUG_LIVE_STATUS_VLV;
+		bit = PORTB_HOTPLUG_LIVE_STATUS_GM45;
 		break;
 	case PORT_C:
-		bit = PORTC_HOTPLUG_LIVE_STATUS_VLV;
+		bit = PORTC_HOTPLUG_LIVE_STATUS_GM45;
 		break;
 	case PORT_D:
-		bit = PORTD_HOTPLUG_LIVE_STATUS_VLV;
+		bit = PORTD_HOTPLUG_LIVE_STATUS_GM45;
 		break;
 	default:
 		MISSING_CASE(port->port);
@@ -4676,8 +4655,8 @@ bool intel_digital_port_connected(struct drm_i915_private *dev_priv,
 		return cpt_digital_port_connected(dev_priv, port);
 	else if (IS_BROXTON(dev_priv))
 		return bxt_digital_port_connected(dev_priv, port);
-	else if (IS_VALLEYVIEW(dev_priv))
-		return vlv_digital_port_connected(dev_priv, port);
+	else if (IS_GM45(dev_priv))
+		return gm45_digital_port_connected(dev_priv, port);
 	else
 		return g4x_digital_port_connected(dev_priv, port);
 }
@@ -5029,7 +5008,7 @@ void intel_dp_encoder_destroy(struct drm_encoder *encoder)
 	kfree(intel_dig_port);
 }
 
-static void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder)
+void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder)
 {
 	struct intel_dp *intel_dp = enc_to_intel_dp(&intel_encoder->base);
 
@@ -5071,15 +5050,17 @@ static void intel_edp_panel_vdd_sanitize(struct intel_dp *intel_dp)
 	edp_panel_vdd_schedule_off(intel_dp);
 }
 
-static void intel_dp_encoder_reset(struct drm_encoder *encoder)
+void intel_dp_encoder_reset(struct drm_encoder *encoder)
 {
-	struct intel_dp *intel_dp;
+	struct drm_i915_private *dev_priv = to_i915(encoder->dev);
+	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+	if (!HAS_DDI(dev_priv))
+		intel_dp->DP = I915_READ(intel_dp->output_reg);
 
 	if (to_intel_encoder(encoder)->type != INTEL_OUTPUT_EDP)
 		return;
 
-	intel_dp = enc_to_intel_dp(encoder);
-
 	pps_lock(intel_dp);
 
 	/*
@@ -5151,9 +5132,6 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
 	intel_display_power_get(dev_priv, power_domain);
 
 	if (long_hpd) {
-		/* indicate that we need to restart link training */
-		intel_dp->train_set_valid = false;
-
 		if (!intel_digital_port_connected(dev_priv, intel_dig_port))
 			goto mst_fail;
 
@@ -6127,8 +6105,9 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
 	return true;
 }
 
-void
-intel_dp_init(struct drm_device *dev, int output_reg, enum port port)
+bool intel_dp_init(struct drm_device *dev,
+		   int output_reg,
+		   enum port port)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_digital_port *intel_dig_port;
@@ -6138,7 +6117,7 @@ intel_dp_init(struct drm_device *dev, int output_reg, enum port port)
 
 	intel_dig_port = kzalloc(sizeof(*intel_dig_port), GFP_KERNEL);
 	if (!intel_dig_port)
-		return;
+		return false;
 
 	intel_connector = intel_connector_alloc();
 	if (!intel_connector)
@@ -6193,15 +6172,14 @@ intel_dp_init(struct drm_device *dev, int output_reg, enum port port)
 	if (!intel_dp_init_connector(intel_dig_port, intel_connector))
 		goto err_init_connector;
 
-	return;
+	return true;
 
 err_init_connector:
 	drm_encoder_cleanup(encoder);
 	kfree(intel_connector);
 err_connector_alloc:
 	kfree(intel_dig_port);
-
-	return;
+	return false;
 }
 
 void intel_dp_mst_suspend(struct drm_device *dev)
diff --git a/drivers/video/drm/i915/intel_dp_mst.c b/drivers/video/drm/i915/intel_dp_mst.c
index 0639275fc..06bd9257a 100644
--- a/drivers/video/drm/i915/intel_dp_mst.c
+++ b/drivers/video/drm/i915/intel_dp_mst.c
@@ -477,6 +477,8 @@ static void intel_dp_destroy_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
 	struct intel_connector *intel_connector = to_intel_connector(connector);
 	struct drm_device *dev = connector->dev;
 
+	intel_connector->unregister(intel_connector);
+
 	/* need to nuke the connector */
 	drm_modeset_lock_all(dev);
 	if (connector->state->crtc) {
@@ -490,11 +492,7 @@ static void intel_dp_destroy_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
 
 		WARN(ret, "Disabling mst crtc failed with %i\n", ret);
 	}
-	drm_modeset_unlock_all(dev);
 
-	intel_connector->unregister(intel_connector);
-
-	drm_modeset_lock_all(dev);
 	intel_connector_remove_from_fbdev(intel_connector);
 	drm_connector_cleanup(connector);
 	drm_modeset_unlock_all(dev);
diff --git a/drivers/video/drm/i915/intel_drv.h b/drivers/video/drm/i915/intel_drv.h
index 3afe47762..27079ee81 100644
--- a/drivers/video/drm/i915/intel_drv.h
+++ b/drivers/video/drm/i915/intel_drv.h
@@ -782,7 +782,6 @@ struct intel_dp {
 				     bool has_aux_irq,
 				     int send_bytes,
 				     uint32_t aux_clock_divider);
-	bool train_set_valid;
 
 	/* Displayport compliance testing */
 	unsigned long compliance_test_type;
@@ -1177,7 +1176,7 @@ void intel_modeset_preclose(struct drm_device *dev, struct drm_file *file);
 int skl_update_scaler_crtc(struct intel_crtc_state *crtc_state);
 int skl_max_scale(struct intel_crtc *crtc, struct intel_crtc_state *crtc_state);
 
-unsigned long intel_plane_obj_offset(struct intel_plane *intel_plane,
+u32 intel_plane_obj_offset(struct intel_plane *intel_plane,
 				     struct drm_i915_gem_object *obj,
 				     unsigned int plane);
 
@@ -1195,7 +1194,7 @@ void intel_csr_ucode_fini(struct drm_device *dev);
 void assert_csr_loaded(struct drm_i915_private *dev_priv);
 
 /* intel_dp.c */
-void intel_dp_init(struct drm_device *dev, int output_reg, enum port port);
+bool intel_dp_init(struct drm_device *dev, int output_reg, enum port port);
 bool intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
 			     struct intel_connector *intel_connector);
 void intel_dp_set_link_params(struct intel_dp *intel_dp,
@@ -1203,6 +1202,8 @@ void intel_dp_set_link_params(struct intel_dp *intel_dp,
 void intel_dp_start_link_train(struct intel_dp *intel_dp);
 void intel_dp_stop_link_train(struct intel_dp *intel_dp);
 void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
+void intel_dp_encoder_reset(struct drm_encoder *encoder);
+void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder);
 void intel_dp_encoder_destroy(struct drm_encoder *encoder);
 int intel_dp_sink_crc(struct intel_dp *intel_dp, u8 *crc);
 bool intel_dp_compute_config(struct intel_encoder *encoder,
diff --git a/drivers/video/drm/i915/intel_fbdev.c b/drivers/video/drm/i915/intel_fbdev.c
index fc1c4cca5..cfe4a5124 100644
--- a/drivers/video/drm/i915/intel_fbdev.c
+++ b/drivers/video/drm/i915/intel_fbdev.c
@@ -347,12 +347,12 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper,
 	uint64_t conn_configured = 0, mask;
 	int pass = 0;
 
-	save_enabled = kcalloc(dev->mode_config.num_connector, sizeof(bool),
+	save_enabled = kcalloc(fb_helper->connector_count, sizeof(bool),
 			       GFP_KERNEL);
 	if (!save_enabled)
 		return false;
 
-	memcpy(save_enabled, enabled, dev->mode_config.num_connector);
+	memcpy(save_enabled, enabled, fb_helper->connector_count);
 	mask = (1 << fb_helper->connector_count) - 1;
 retry:
 	for (i = 0; i < fb_helper->connector_count; i++) {
@@ -486,7 +486,7 @@ retry:
 	if (fallback) {
 bail:
 		DRM_DEBUG_KMS("Not using firmware configuration\n");
-		memcpy(enabled, save_enabled, dev->mode_config.num_connector);
+		memcpy(enabled, save_enabled, fb_helper->connector_count);
 		kfree(save_enabled);
 		return false;
 	}
diff --git a/drivers/video/drm/i915/intel_hdmi.c b/drivers/video/drm/i915/intel_hdmi.c
index a1bcd9d1e..2ec311db8 100644
--- a/drivers/video/drm/i915/intel_hdmi.c
+++ b/drivers/video/drm/i915/intel_hdmi.c
@@ -1388,8 +1388,16 @@ intel_hdmi_detect(struct drm_connector *connector, bool force)
 				hdmi_to_dig_port(intel_hdmi));
 	}
 
-	if (!live_status)
-		DRM_DEBUG_KMS("Live status not up!");
+	if (!live_status) {
+		DRM_DEBUG_KMS("HDMI live status down\n");
+		/*
+		 * Live status register is not reliable on all intel platforms.
+		 * So consider live_status only for certain platforms, for
+		 * others, read EDID to determine presence of sink.
+		 */
+		if (INTEL_INFO(dev_priv)->gen < 7 || IS_IVYBRIDGE(dev_priv))
+			live_status = true;
+	}
 
 	intel_hdmi_unset_edid(connector);
 
@@ -2022,6 +2030,9 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
 	enum port port = intel_dig_port->port;
 	uint8_t alternate_ddc_pin;
 
+	DRM_DEBUG_KMS("Adding HDMI connector on port %c\n",
+		      port_name(port));
+
 	drm_connector_init(dev, connector, &intel_hdmi_connector_funcs,
 			   DRM_MODE_CONNECTOR_HDMIA);
 	drm_connector_helper_add(connector, &intel_hdmi_connector_helper_funcs);
diff --git a/drivers/video/drm/i915/intel_lrc.c b/drivers/video/drm/i915/intel_lrc.c
index f0f00aad9..2c2907352 100644
--- a/drivers/video/drm/i915/intel_lrc.c
+++ b/drivers/video/drm/i915/intel_lrc.c
@@ -776,11 +776,11 @@ static int logical_ring_prepare(struct drm_i915_gem_request *req, int bytes)
 		if (unlikely(total_bytes > remain_usable)) {
 			/*
 			 * The base request will fit but the reserved space
-			 * falls off the end. So only need to to wait for the
-			 * reserved size after flushing out the remainder.
+			 * falls off the end. So don't need an immediate wrap
+			 * and only need to effectively wait for the reserved
+			 * size space from the start of ringbuffer.
 			 */
 			wait_bytes = remain_actual + ringbuf->reserved_size;
-			need_wrap = true;
 		} else if (total_bytes > ringbuf->space) {
 			/* No wrapping required, just waiting. */
 			wait_bytes = total_bytes;
diff --git a/drivers/video/drm/i915/intel_lvds.c b/drivers/video/drm/i915/intel_lvds.c
index c688f711d..0df1469e2 100644
--- a/drivers/video/drm/i915/intel_lvds.c
+++ b/drivers/video/drm/i915/intel_lvds.c
@@ -38,7 +38,7 @@
 #include "intel_drv.h"
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
-//#include <linux/acpi.h>
+#include <linux/acpi.h>
 
 /* Private structure for the integrated LVDS support */
 struct intel_lvds_connector {
diff --git a/drivers/video/drm/i915/intel_opregion.c b/drivers/video/drm/i915/intel_opregion.c
index 3f1510139..c8deccdf0 100644
--- a/drivers/video/drm/i915/intel_opregion.c
+++ b/drivers/video/drm/i915/intel_opregion.c
@@ -682,7 +682,7 @@ static void intel_didl_outputs(struct drm_device *dev)
 	}
 
 	if (!acpi_video_bus) {
-		DRM_ERROR("No ACPI video bus found\n");
+		DRM_DEBUG_KMS("No ACPI video bus found\n");
 		return;
 	}
 
diff --git a/drivers/video/drm/i915/intel_pm.c b/drivers/video/drm/i915/intel_pm.c
index cd5f09f63..a651fbad1 100644
--- a/drivers/video/drm/i915/intel_pm.c
+++ b/drivers/video/drm/i915/intel_pm.c
@@ -1794,16 +1794,20 @@ static uint32_t ilk_compute_cur_wm(const struct intel_crtc_state *cstate,
 				   const struct intel_plane_state *pstate,
 				   uint32_t mem_value)
 {
-	int bpp = pstate->base.fb ? pstate->base.fb->bits_per_pixel / 8 : 0;
+	/*
+	 * We treat the cursor plane as always-on for the purposes of watermark
+	 * calculation.  Until we have two-stage watermark programming merged,
+	 * this is necessary to avoid flickering.
+	 */
+	int cpp = 4;
+	int width = pstate->visible ? pstate->base.crtc_w : 64;
 
-	if (!cstate->base.active || !pstate->visible)
+	if (!cstate->base.active)
 		return 0;
 
 	return ilk_wm_method2(ilk_pipe_pixel_rate(cstate),
 			      cstate->base.adjusted_mode.crtc_htotal,
-			      drm_rect_width(&pstate->dst),
-			      bpp,
-			      mem_value);
+			      width, cpp, mem_value);
 }
 
 /* Only for WM_LP. */
@@ -3885,6 +3889,8 @@ static void ilk_pipe_wm_get_hw_state(struct drm_crtc *crtc)
 	if (IS_HASWELL(dev) || IS_BROADWELL(dev))
 		hw->wm_linetime[pipe] = I915_READ(PIPE_WM_LINETIME(pipe));
 
+	memset(active, 0, sizeof(*active));
+
 	active->pipe_enabled = intel_crtc->active;
 
 	if (active->pipe_enabled) {
@@ -4525,7 +4531,8 @@ void gen6_rps_idle(struct drm_i915_private *dev_priv)
 		else
 			gen6_set_rps(dev_priv->dev, dev_priv->rps.idle_freq);
 		dev_priv->rps.last_adj = 0;
-		I915_WRITE(GEN6_PMINTRMSK, 0xffffffff);
+		I915_WRITE(GEN6_PMINTRMSK,
+			   gen6_sanitize_rps_pm_mask(dev_priv, ~0));
 	}
 	mutex_unlock(&dev_priv->rps.hw_lock);
 
@@ -6620,6 +6627,12 @@ static void broadwell_init_clock_gating(struct drm_device *dev)
 	misccpctl = I915_READ(GEN7_MISCCPCTL);
 	I915_WRITE(GEN7_MISCCPCTL, misccpctl & ~GEN7_DOP_CLOCK_GATE_ENABLE);
 	I915_WRITE(GEN8_L3SQCREG1, BDW_WA_L3SQCREG1_DEFAULT);
+	/*
+	 * Wait at least 100 clocks before re-enabling clock gating. See
+	 * the definition of L3SQCREG1 in BSpec.
+	 */
+	POSTING_READ(GEN8_L3SQCREG1);
+	udelay(1);
 	I915_WRITE(GEN7_MISCCPCTL, misccpctl);
 
 	/*
diff --git a/drivers/video/drm/i915/intel_ringbuffer.c b/drivers/video/drm/i915/intel_ringbuffer.c
index 75243651c..d01084583 100644
--- a/drivers/video/drm/i915/intel_ringbuffer.c
+++ b/drivers/video/drm/i915/intel_ringbuffer.c
@@ -1922,6 +1922,17 @@ i915_dispatch_execbuffer(struct drm_i915_gem_request *req,
 	return 0;
 }
 
+static void cleanup_phys_status_page(struct intel_engine_cs *ring)
+{
+	struct drm_i915_private *dev_priv = to_i915(ring->dev);
+
+	if (!dev_priv->status_page_dmah)
+		return;
+
+	drm_pci_free(ring->dev, dev_priv->status_page_dmah);
+	ring->status_page.page_addr = NULL;
+}
+
 static void cleanup_status_page(struct intel_engine_cs *ring)
 {
 	struct drm_i915_gem_object *obj;
@@ -1938,9 +1949,9 @@ static void cleanup_status_page(struct intel_engine_cs *ring)
 
 static int init_status_page(struct intel_engine_cs *ring)
 {
-	struct drm_i915_gem_object *obj;
+	struct drm_i915_gem_object *obj = ring->status_page.obj;
 
-	if ((obj = ring->status_page.obj) == NULL) {
+	if (obj == NULL) {
 		unsigned flags;
 		int ret;
 
@@ -2134,7 +2145,7 @@ static int intel_init_ring_buffer(struct drm_device *dev,
 		if (ret)
 			goto error;
 	} else {
-		BUG_ON(ring->id != RCS);
+		WARN_ON(ring->id != RCS);
 		ret = init_phys_status_page(ring);
 		if (ret)
 			goto error;
@@ -2179,7 +2190,12 @@ void intel_cleanup_ring_buffer(struct intel_engine_cs *ring)
 	if (ring->cleanup)
 		ring->cleanup(ring);
 
+	if (I915_NEED_GFX_HWS(ring->dev)) {
 	cleanup_status_page(ring);
+	} else {
+		WARN_ON(ring->id != RCS);
+		cleanup_phys_status_page(ring);
+	}
 
 	i915_cmd_parser_fini_ring(ring);
 	i915_gem_batch_pool_fini(&ring->batch_pool);
@@ -2341,11 +2357,11 @@ static int __intel_ring_prepare(struct intel_engine_cs *ring, int bytes)
 		if (unlikely(total_bytes > remain_usable)) {
 			/*
 			 * The base request will fit but the reserved space
-			 * falls off the end. So only need to to wait for the
-			 * reserved size after flushing out the remainder.
+			 * falls off the end. So don't need an immediate wrap
+			 * and only need to effectively wait for the reserved
+			 * size space from the start of ringbuffer.
 			 */
 			wait_bytes = remain_actual + ringbuf->reserved_size;
-			need_wrap = true;
 		} else if (total_bytes > ringbuf->space) {
 			/* No wrapping required, just waiting. */
 			wait_bytes = total_bytes;
diff --git a/drivers/video/drm/i915/intel_sprite.c b/drivers/video/drm/i915/intel_sprite.c
index 11495a8d1..2adfec28c 100644
--- a/drivers/video/drm/i915/intel_sprite.c
+++ b/drivers/video/drm/i915/intel_sprite.c
@@ -200,7 +200,7 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 	int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
 	const struct drm_intel_sprite_colorkey *key =
 		&to_intel_plane_state(drm_plane->state)->ckey;
-	unsigned long surf_addr;
+	u32 surf_addr;
 	u32 tile_height, plane_offset, plane_size;
 	unsigned int rotation;
 	int x_offset, y_offset;
diff --git a/drivers/video/drm/i915/intel_uncore.c b/drivers/video/drm/i915/intel_uncore.c
index 587d32b82..4f5c1efe1 100644
--- a/drivers/video/drm/i915/intel_uncore.c
+++ b/drivers/video/drm/i915/intel_uncore.c
@@ -1134,6 +1134,10 @@ static void intel_uncore_fw_domains_init(struct drm_device *dev)
 	} else if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
 		dev_priv->uncore.funcs.force_wake_get =
 			fw_domains_get_with_thread_status;
+		if (IS_HASWELL(dev))
+			dev_priv->uncore.funcs.force_wake_put =
+				fw_domains_put_with_fifo;
+		else
 		dev_priv->uncore.funcs.force_wake_put = fw_domains_put;
 		fw_domain_init(dev_priv, FW_DOMAIN_ID_RENDER,
 			       FORCEWAKE_MT, FORCEWAKE_ACK_HSW);
diff --git a/drivers/video/drm/i915/kms_display.c b/drivers/video/drm/i915/kms_display.c
index 7a6c356a9..4da6134c6 100644
--- a/drivers/video/drm/i915/kms_display.c
+++ b/drivers/video/drm/i915/kms_display.c
@@ -5,6 +5,7 @@
 #include <uapi/drm/drm.h>
 #include "i915_drv.h"
 #include "intel_drv.h"
+#include <drm/drm_plane_helper.h>
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
 #include <linux/pci.h>
@@ -1016,7 +1017,7 @@ int i915_mask_update_ex(struct drm_device *dev, void *data,
     struct drm_i915_mask_update *mask = data;
     struct drm_gem_object *obj;
     static unsigned int mask_seqno[256];
-    static warn_count;
+    static int warn_count;
 
     rect_t win;
     u32    winw,winh;
diff --git a/drivers/video/drm/i915/main.c b/drivers/video/drm/i915/main.c
index a8bfc68aa..86b01ec97 100644
--- a/drivers/video/drm/i915/main.c
+++ b/drivers/video/drm/i915/main.c
@@ -8,13 +8,15 @@
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
 #include <linux/pci.h>
+#include <linux/dmi.h>
+#include "../drm_internal.h"
 
 #include "getopt.h"
 
 #include "bitmap.h"
 #include "i915_kos32.h"
 
-#define DRV_NAME "i915 v4.4.5"
+#define DRV_NAME "i915 v4.4.30"
 
 #define I915_DEV_CLOSE 0
 #define I915_DEV_INIT  1
@@ -24,6 +26,16 @@ static int my_atoi(char **cmd);
 static char* parse_mode(char *p, videomode_t *mode);
 void cpu_detect1();
 int kmap_init();
+int fake_framebuffer_create();
+int i915_init(void);
+int init_display_kms(struct drm_device *dev, videomode_t *usermode);
+int get_videomodes(videomode_t *mode, int *count);
+int set_user_mode(videomode_t *mode);
+int i915_fbinfo(struct drm_i915_fb_info *fb);
+int i915_mask_update_ex(struct drm_device *dev, void *data,
+            struct drm_file *file);
+
+
 
 unsigned long volatile jiffies;
 int oops_in_progress;
@@ -534,7 +546,7 @@ int _stdcall display_handler(ioctl_t *io)
             break;
 
         case SRV_FBINFO:
-            retval = i915_fbinfo(inp);
+            retval = i915_fbinfo((struct drm_i915_fb_info*)inp);
             break;
 
         case SRV_MASK_UPDATE:
diff --git a/drivers/video/drm/i915/utils.c b/drivers/video/drm/i915/utils.c
index b250c95a0..460bc6366 100644
--- a/drivers/video/drm/i915/utils.c
+++ b/drivers/video/drm/i915/utils.c
@@ -1,5 +1,7 @@
 #include <ddk.h>
 #include <linux/mm.h>
+#include <linux/scatterlist.h>
+#include <linux/dma-mapping.h>
 #include <drm/drmP.h>
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
@@ -175,23 +177,27 @@ void *memchr_inv(const void *start, int c, size_t bytes)
 }
 
 
-
-int dma_map_sg(struct device *dev, struct scatterlist *sglist,
-                           int nelems, int dir)
+int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
+           enum dma_data_direction direction)
 {
     struct scatterlist *s;
     int i;
 
-    for_each_sg(sglist, s, nelems, i) {
+    for_each_sg(sg, s, nents, i) {
         s->dma_address = (dma_addr_t)sg_phys(s);
 #ifdef CONFIG_NEED_SG_DMA_LENGTH
         s->dma_length  = s->length;
 #endif
     }
 
-    return nelems;
+    return nents;
 }
 
+void
+dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
+             enum dma_data_direction direction)
+{
+};
 
 
 #define _U  0x01    /* upper */
@@ -261,98 +267,6 @@ void *kmemdup(const void *src, size_t len, gfp_t gfp)
 }
 
 
-#define KMAP_MAX    256
-
-static struct mutex kmap_mutex;
-static struct page* kmap_table[KMAP_MAX];
-static int kmap_av;
-static int kmap_first;
-static void* kmap_base;
-
-
-int kmap_init()
-{
-    kmap_base = AllocKernelSpace(KMAP_MAX*4096);
-    if(kmap_base == NULL)
-        return -1;
-
-    kmap_av = KMAP_MAX;
-    MutexInit(&kmap_mutex);
-    return 0;
-};
-
-void *kmap(struct page *page)
-{
-    void *vaddr = NULL;
-    int i;
-
-    do
-    {
-        MutexLock(&kmap_mutex);
-        if(kmap_av != 0)
-        {
-            for(i = kmap_first; i < KMAP_MAX; i++)
-            {
-                if(kmap_table[i] == NULL)
-                {
-                    kmap_av--;
-                    kmap_first = i;
-                    kmap_table[i] = page;
-                    vaddr = kmap_base + (i<<12);
-                    MapPage(vaddr,(addr_t)page,3);
-                    break;
-                };
-            };
-        };
-        MutexUnlock(&kmap_mutex);
-    }while(vaddr == NULL);
-
-    return vaddr;
-};
-
-void *kmap_atomic(struct page *page) __attribute__ ((alias ("kmap")));
-
-void kunmap(struct page *page)
-{
-    void *vaddr;
-    int   i;
-
-    MutexLock(&kmap_mutex);
-
-    for(i = 0; i < KMAP_MAX; i++)
-    {
-        if(kmap_table[i] == page)
-        {
-            kmap_av++;
-            if(i < kmap_first)
-                kmap_first = i;
-            kmap_table[i] = NULL;
-            vaddr = kmap_base + (i<<12);
-            MapPage(vaddr,0,0);
-            break;
-        };
-    };
-
-    MutexUnlock(&kmap_mutex);
-};
-
-void kunmap_atomic(void *vaddr)
-{
-    int i;
-
-    MapPage(vaddr,0,0);
-
-    i = (vaddr - kmap_base) >> 12;
-
-    MutexLock(&kmap_mutex);
-
-    kmap_av++;
-    if(i < kmap_first)
-        kmap_first = i;
-    kmap_table[i] = NULL;
-
-    MutexUnlock(&kmap_mutex);
-}
 
 void msleep(unsigned int msecs)
 {
@@ -684,7 +598,7 @@ int split_cmdline(char *cmdline, char **argv)
 };
 
 
-fb_get_options(const char *name, char **option)
+int fb_get_options(const char *name, char **option)
 {
     char *opt, *options = NULL;
     int retval = 1;