Merge branch 'bugfixes' into nfs-for-next

21 files changed, 128 insertions, 261 deletions

diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index 392ce71ed6a..1dffa8359f8 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -149,22 +149,12 @@ static int exynos_drm_gem_map_pages(struct drm_gem_object *obj,
 	unsigned long pfn;
 
 	if (exynos_gem_obj->flags & EXYNOS_BO_NONCONTIG) {
-		unsigned long usize = buf->size;
-
 		if (!buf->pages)
 			return -EINTR;
 
-		while (usize > 0) {
-			pfn = page_to_pfn(buf->pages[page_offset++]);
-			vm_insert_mixed(vma, f_vaddr, pfn);
-			f_vaddr += PAGE_SIZE;
-			usize -= PAGE_SIZE;
-		}
-
-		return 0;
-	}
-
-	pfn = (buf->dma_addr >> PAGE_SHIFT) + page_offset;
+		pfn = page_to_pfn(buf->pages[page_offset++]);
+	} else
+		pfn = (buf->dma_addr >> PAGE_SHIFT) + page_offset;
 
 	return vm_insert_mixed(vma, f_vaddr, pfn);
 }
@@ -524,6 +514,8 @@ static int exynos_drm_gem_mmap_buffer(struct file *filp,
 		if (!buffer->pages)
 			return -EINVAL;
 
+		vma->vm_flags |= VM_MIXEDMAP;
+
 		do {
 			ret = vm_insert_page(vma, uaddr, buffer->pages[i++]);
 			if (ret) {
@@ -710,7 +702,6 @@ int exynos_drm_gem_dumb_destroy(struct drm_file *file_priv,
 int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
 	struct drm_gem_object *obj = vma->vm_private_data;
-	struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj);
 	struct drm_device *dev = obj->dev;
 	unsigned long f_vaddr;
 	pgoff_t page_offset;
@@ -722,21 +713,10 @@ int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 
 	mutex_lock(&dev->struct_mutex);
 
-	/*
-	 * allocate all pages as desired size if user wants to allocate
-	 * physically non-continuous memory.
-	 */
-	if (exynos_gem_obj->flags & EXYNOS_BO_NONCONTIG) {
-		ret = exynos_drm_gem_get_pages(obj);
-		if (ret < 0)
-			goto err;
-	}
-
 	ret = exynos_drm_gem_map_pages(obj, vma, f_vaddr, page_offset);
 	if (ret < 0)
 		DRM_ERROR("failed to map pages.\n");
 
-err:
 	mutex_unlock(&dev->struct_mutex);
 
 	return convert_to_vm_err_msg(ret);
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index b505b70dba0..e6162a1681f 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1224,6 +1224,9 @@ static int i915_emon_status(struct seq_file *m, void *unused)
 	unsigned long temp, chipset, gfx;
 	int ret;
 
+	if (!IS_GEN5(dev))
+		return -ENODEV;
+
 	ret = mutex_lock_interruptible(&dev->struct_mutex);
 	if (ret)
 		return ret;
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 785f67f963e..ba60f3c8f91 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1701,6 +1701,9 @@ void i915_update_gfx_val(struct drm_i915_private *dev_priv)
 	unsigned long diffms;
 	u32 count;
 
+	if (dev_priv->info->gen != 5)
+		return;
+
 	getrawmonotonic(&now);
 	diff1 = timespec_sub(now, dev_priv->last_time2);
 
@@ -2121,12 +2124,14 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
 	setup_timer(&dev_priv->hangcheck_timer, i915_hangcheck_elapsed,
 		    (unsigned long) dev);
 
-	spin_lock(&mchdev_lock);
-	i915_mch_dev = dev_priv;
-	dev_priv->mchdev_lock = &mchdev_lock;
-	spin_unlock(&mchdev_lock);
+	if (IS_GEN5(dev)) {
+		spin_lock(&mchdev_lock);
+		i915_mch_dev = dev_priv;
+		dev_priv->mchdev_lock = &mchdev_lock;
+		spin_unlock(&mchdev_lock);
 
-	ips_ping_for_i915_load();
+		ips_ping_for_i915_load();
+	}
 
 	return 0;
 
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index f51a696486c..de431942ded 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -1133,6 +1133,11 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
 			return -EINVAL;
 		}
 
+		if (args->num_cliprects > UINT_MAX / sizeof(*cliprects)) {
+			DRM_DEBUG("execbuf with %u cliprects\n",
+				  args->num_cliprects);
+			return -EINVAL;
+		}
 		cliprects = kmalloc(args->num_cliprects * sizeof(*cliprects),
 				    GFP_KERNEL);
 		if (cliprects == NULL) {
@@ -1404,7 +1409,8 @@ i915_gem_execbuffer2(struct drm_device *dev, void *data,
 	struct drm_i915_gem_exec_object2 *exec2_list = NULL;
 	int ret;
 
-	if (args->buffer_count < 1) {
+	if (args->buffer_count < 1 ||
+	    args->buffer_count > UINT_MAX / sizeof(*exec2_list)) {
 		DRM_DEBUG("execbuf2 with %d buffers\n", args->buffer_count);
 		return -EINVAL;
 	}
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index b4bb1ef77dd..9d24d65f0c3 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -568,6 +568,7 @@
 #define   CM0_MASK_SHIFT          16
 #define   CM0_IZ_OPT_DISABLE      (1<<6)
 #define   CM0_ZR_OPT_DISABLE      (1<<5)
+#define	  CM0_STC_EVICT_DISABLE_LRA_SNB	(1<<5)
 #define   CM0_DEPTH_EVICT_DISABLE (1<<4)
 #define   CM0_COLOR_EVICT_DISABLE (1<<3)
 #define   CM0_DEPTH_WRITE_DISABLE (1<<1)
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 4d3d736a4f5..90b9793fd5d 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -430,8 +430,8 @@ intel_crt_detect(struct drm_connector *connector, bool force)
 {
 	struct drm_device *dev = connector->dev;
 	struct intel_crt *crt = intel_attached_crt(connector);
-	struct drm_crtc *crtc;
 	enum drm_connector_status status;
+	struct intel_load_detect_pipe tmp;
 
 	if (I915_HAS_HOTPLUG(dev)) {
 		if (intel_crt_detect_hotplug(connector)) {
@@ -450,23 +450,16 @@ intel_crt_detect(struct drm_connector *connector, bool force)
 		return connector->status;
 
 	/* for pre-945g platforms use load detect */
-	crtc = crt->base.base.crtc;
-	if (crtc && crtc->enabled) {
-		status = intel_crt_load_detect(crt);
-	} else {
-		struct intel_load_detect_pipe tmp;
-
-		if (intel_get_load_detect_pipe(&crt->base, 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);
-		} else
-			status = connector_status_unknown;
-	}
+	if (intel_get_load_detect_pipe(&crt->base, 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);
+	} else
+		status = connector_status_unknown;
 
 	return status;
 }
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 5908cd56340..1b1cf3b3ff5 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -7072,9 +7072,6 @@ static void intel_decrease_pllclock(struct drm_crtc *crtc)
 	struct drm_device *dev = crtc->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	int pipe = intel_crtc->pipe;
-	int dpll_reg = DPLL(pipe);
-	int dpll = I915_READ(dpll_reg);
 
 	if (HAS_PCH_SPLIT(dev))
 		return;
@@ -7087,10 +7084,15 @@ static void intel_decrease_pllclock(struct drm_crtc *crtc)
 	 * the manual case.
 	 */
 	if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) {
+		int pipe = intel_crtc->pipe;
+		int dpll_reg = DPLL(pipe);
+		u32 dpll;
+
 		DRM_DEBUG_DRIVER("downclocking LVDS\n");
 
 		assert_panel_unlocked(dev_priv, pipe);
 
+		dpll = I915_READ(dpll_reg);
 		dpll |= DISPLAY_RATE_SELECT_FPA1;
 		I915_WRITE(dpll_reg, dpll);
 		intel_wait_for_vblank(dev, pipe);
@@ -7098,7 +7100,6 @@ static void intel_decrease_pllclock(struct drm_crtc *crtc)
 		if (!(dpll & DISPLAY_RATE_SELECT_FPA1))
 			DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
 	}
-
 }
 
 /**
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index cae3e5f17a4..2d7f47b56b6 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -136,7 +136,7 @@ static void i9xx_write_infoframe(struct drm_encoder *encoder,
 
 	val &= ~VIDEO_DIP_SELECT_MASK;
 
-	I915_WRITE(VIDEO_DIP_CTL, val | port | flags);
+	I915_WRITE(VIDEO_DIP_CTL, VIDEO_DIP_ENABLE | val | port | flags);
 
 	for (i = 0; i < len; i += 4) {
 		I915_WRITE(VIDEO_DIP_DATA, *data);
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 30e2c82101d..9c71183629c 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -750,7 +750,7 @@ static const struct dmi_system_id intel_no_lvds[] = {
 		.ident = "Hewlett-Packard t5745",
 		.matches = {
 			DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
-			DMI_MATCH(DMI_BOARD_NAME, "hp t5745"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "hp t5745"),
 		},
 	},
 	{
@@ -758,7 +758,7 @@ static const struct dmi_system_id intel_no_lvds[] = {
 		.ident = "Hewlett-Packard st5747",
 		.matches = {
 			DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
-			DMI_MATCH(DMI_BOARD_NAME, "hp st5747"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "hp st5747"),
 		},
 	},
 	{
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index f75806e5bff..62892a826ed 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -398,6 +398,17 @@ static int init_render_ring(struct intel_ring_buffer *ring)
 			return ret;
 	}
 
+
+	if (IS_GEN6(dev)) {
+		/* From the Sandybridge PRM, volume 1 part 3, page 24:
+		 * "If this bit is set, STCunit will have LRA as replacement
+		 *  policy. [...] This bit must be reset.  LRA replacement
+		 *  policy is not supported."
+		 */
+		I915_WRITE(CACHE_MODE_0,
+			   CM0_STC_EVICT_DISABLE_LRA_SNB << CM0_MASK_SHIFT);
+	}
+
 	if (INTEL_INFO(dev)->gen >= 6) {
 		I915_WRITE(INSTPM,
 			   INSTPM_FORCE_ORDERING << 16 | INSTPM_FORCE_ORDERING);
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index e36b171c1e7..ae5e748f39b 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -731,6 +731,7 @@ static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd,
 	uint16_t width, height;
 	uint16_t h_blank_len, h_sync_len, v_blank_len, v_sync_len;
 	uint16_t h_sync_offset, v_sync_offset;
+	int mode_clock;
 
 	width = mode->crtc_hdisplay;
 	height = mode->crtc_vdisplay;
@@ -745,7 +746,11 @@ static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd,
 	h_sync_offset = mode->crtc_hsync_start - mode->crtc_hblank_start;
 	v_sync_offset = mode->crtc_vsync_start - mode->crtc_vblank_start;
 
-	dtd->part1.clock = mode->clock / 10;
+	mode_clock = mode->clock;
+	mode_clock /= intel_mode_get_pixel_multiplier(mode) ?: 1;
+	mode_clock /= 10;
+	dtd->part1.clock = mode_clock;
+
 	dtd->part1.h_active = width & 0xff;
 	dtd->part1.h_blank = h_blank_len & 0xff;
 	dtd->part1.h_high = (((width >> 8) & 0xf) << 4) |
@@ -996,7 +1001,7 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
 	struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
 	u32 sdvox;
 	struct intel_sdvo_in_out_map in_out;
-	struct intel_sdvo_dtd input_dtd;
+	struct intel_sdvo_dtd input_dtd, output_dtd;
 	int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode);
 	int rate;
 
@@ -1021,20 +1026,13 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
 					  intel_sdvo->attached_output))
 		return;
 
-	/* We have tried to get input timing in mode_fixup, and filled into
-	 * adjusted_mode.
-	 */
-	if (intel_sdvo->is_tv || intel_sdvo->is_lvds) {
-		input_dtd = intel_sdvo->input_dtd;
-	} else {
-		/* Set the output timing to the screen */
-		if (!intel_sdvo_set_target_output(intel_sdvo,
-						  intel_sdvo->attached_output))
-			return;
-
-		intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
-		(void) intel_sdvo_set_output_timing(intel_sdvo, &input_dtd);
-	}
+	/* lvds has a special fixed output timing. */
+	if (intel_sdvo->is_lvds)
+		intel_sdvo_get_dtd_from_mode(&output_dtd,
+					     intel_sdvo->sdvo_lvds_fixed_mode);
+	else
+		intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
+	(void) intel_sdvo_set_output_timing(intel_sdvo, &output_dtd);
 
 	/* Set the input timing to the screen. Assume always input 0. */
 	if (!intel_sdvo_set_target_input(intel_sdvo))
@@ -1052,6 +1050,10 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
 	    !intel_sdvo_set_tv_format(intel_sdvo))
 		return;
 
+	/* We have tried to get input timing in mode_fixup, and filled into
+	 * adjusted_mode.
+	 */
+	intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
 	(void) intel_sdvo_set_input_timing(intel_sdvo, &input_dtd);
 
 	switch (pixel_multiplier) {
@@ -1218,8 +1220,14 @@ static bool intel_sdvo_get_capabilities(struct intel_sdvo *intel_sdvo, struct in
 
 static int intel_sdvo_supports_hotplug(struct intel_sdvo *intel_sdvo)
 {
+	struct drm_device *dev = intel_sdvo->base.base.dev;
 	u8 response[2];
 
+	/* HW Erratum: SDVO Hotplug is broken on all i945G chips, there's noise
+	 * on the line. */
+	if (IS_I945G(dev) || IS_I945GM(dev))
+		return false;
+
 	return intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT,
 				    &response, 2) && response[0];
 }
diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c
index 7814a760c16..284bd25d5d2 100644
--- a/drivers/gpu/drm/nouveau/nouveau_acpi.c
+++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c
@@ -270,7 +270,7 @@ static bool nouveau_dsm_detect(void)
 	struct acpi_buffer buffer = {sizeof(acpi_method_name), acpi_method_name};
 	struct pci_dev *pdev = NULL;
 	int has_dsm = 0;
-	int has_optimus;
+	int has_optimus = 0;
 	int vga_count = 0;
 	bool guid_valid;
 	int retval;
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
index 80963d05b54..0be4a815e70 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -6156,10 +6156,14 @@ dcb_fake_connectors(struct nvbios *bios)
 
 	/* heuristic: if we ever get a non-zero connector field, assume
 	 * that all the indices are valid and we don't need fake them.
+	 *
+	 * and, as usual, a blacklist of boards with bad bios data..
 	 */
-	for (i = 0; i < dcbt->entries; i++) {
-		if (dcbt->entry[i].connector)
-			return;
+	if (!nv_match_device(bios->dev, 0x0392, 0x107d, 0x20a2)) {
+		for (i = 0; i < dcbt->entries; i++) {
+			if (dcbt->entry[i].connector)
+				return;
+		}
 	}
 
 	/* no useful connector info available, we need to make it up
diff --git a/drivers/gpu/drm/nouveau/nouveau_hdmi.c b/drivers/gpu/drm/nouveau/nouveau_hdmi.c
index 59ea1c14eca..c3de3638452 100644
--- a/drivers/gpu/drm/nouveau/nouveau_hdmi.c
+++ b/drivers/gpu/drm/nouveau/nouveau_hdmi.c
@@ -32,7 +32,9 @@ static bool
 hdmi_sor(struct drm_encoder *encoder)
 {
 	struct drm_nouveau_private *dev_priv = encoder->dev->dev_private;
-	if (dev_priv->chipset < 0xa3)
+	if (dev_priv->chipset <  0xa3 ||
+	    dev_priv->chipset == 0xaa ||
+	    dev_priv->chipset == 0xac)
 		return false;
 	return true;
 }
diff --git a/drivers/gpu/drm/nouveau/nouveau_i2c.c b/drivers/gpu/drm/nouveau/nouveau_i2c.c
index e2be95af2e5..77e564667b5 100644
--- a/drivers/gpu/drm/nouveau/nouveau_i2c.c
+++ b/drivers/gpu/drm/nouveau/nouveau_i2c.c
@@ -29,10 +29,6 @@
 #include "nouveau_i2c.h"
 #include "nouveau_hw.h"
 
-#define T_TIMEOUT  2200000
-#define T_RISEFALL 1000
-#define T_HOLD     5000
-
 static void
 i2c_drive_scl(void *data, int state)
 {
@@ -113,175 +109,6 @@ i2c_sense_sda(void *data)
 	return 0;
 }
 
-static void
-i2c_delay(struct nouveau_i2c_chan *port, u32 nsec)
-{
-	udelay((nsec + 500) / 1000);
-}
-
-static bool
-i2c_raise_scl(struct nouveau_i2c_chan *port)
-{
-	u32 timeout = T_TIMEOUT / T_RISEFALL;
-
-	i2c_drive_scl(port, 1);
-	do {
-		i2c_delay(port, T_RISEFALL);
-	} while (!i2c_sense_scl(port) && --timeout);
-
-	return timeout != 0;
-}
-
-static int
-i2c_start(struct nouveau_i2c_chan *port)
-{
-	int ret = 0;
-
-	port->state  = i2c_sense_scl(port);
-	port->state |= i2c_sense_sda(port) << 1;
-	if (port->state != 3) {
-		i2c_drive_scl(port, 0);
-		i2c_drive_sda(port, 1);
-		if (!i2c_raise_scl(port))
-			ret = -EBUSY;
-	}
-
-	i2c_drive_sda(port, 0);
-	i2c_delay(port, T_HOLD);
-	i2c_drive_scl(port, 0);
-	i2c_delay(port, T_HOLD);
-	return ret;
-}
-
-static void
-i2c_stop(struct nouveau_i2c_chan *port)
-{
-	i2c_drive_scl(port, 0);
-	i2c_drive_sda(port, 0);
-	i2c_delay(port, T_RISEFALL);
-
-	i2c_drive_scl(port, 1);
-	i2c_delay(port, T_HOLD);
-	i2c_drive_sda(port, 1);
-	i2c_delay(port, T_HOLD);
-}
-
-static int
-i2c_bitw(struct nouveau_i2c_chan *port, int sda)
-{
-	i2c_drive_sda(port, sda);
-	i2c_delay(port, T_RISEFALL);
-
-	if (!i2c_raise_scl(port))
-		return -ETIMEDOUT;
-	i2c_delay(port, T_HOLD);
-
-	i2c_drive_scl(port, 0);
-	i2c_delay(port, T_HOLD);
-	return 0;
-}
-
-static int
-i2c_bitr(struct nouveau_i2c_chan *port)
-{
-	int sda;
-
-	i2c_drive_sda(port, 1);
-	i2c_delay(port, T_RISEFALL);
-
-	if (!i2c_raise_scl(port))
-		return -ETIMEDOUT;
-	i2c_delay(port, T_HOLD);
-
-	sda = i2c_sense_sda(port);
-
-	i2c_drive_scl(port, 0);
-	i2c_delay(port, T_HOLD);
-	return sda;
-}
-
-static int
-i2c_get_byte(struct nouveau_i2c_chan *port, u8 *byte, bool last)
-{
-	int i, bit;
-
-	*byte = 0;
-	for (i = 7; i >= 0; i--) {
-		bit = i2c_bitr(port);
-		if (bit < 0)
-			return bit;
-		*byte |= bit << i;
-	}
-
-	return i2c_bitw(port, last ? 1 : 0);
-}
-
-static int
-i2c_put_byte(struct nouveau_i2c_chan *port, u8 byte)
-{
-	int i, ret;
-	for (i = 7; i >= 0; i--) {
-		ret = i2c_bitw(port, !!(byte & (1 << i)));
-		if (ret < 0)
-			return ret;
-	}
-
-	ret = i2c_bitr(port);
-	if (ret == 1) /* nack */
-		ret = -EIO;
-	return ret;
-}
-
-static int
-i2c_addr(struct nouveau_i2c_chan *port, struct i2c_msg *msg)
-{
-	u32 addr = msg->addr << 1;
-	if (msg->flags & I2C_M_RD)
-		addr |= 1;
-	return i2c_put_byte(port, addr);
-}
-
-static int
-i2c_bit_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
-{
-	struct nouveau_i2c_chan *port = (struct nouveau_i2c_chan *)adap;
-	struct i2c_msg *msg = msgs;
-	int ret = 0, mcnt = num;
-
-	while (!ret && mcnt--) {
-		u8 remaining = msg->len;
-		u8 *ptr = msg->buf;
-
-		ret = i2c_start(port);
-		if (ret == 0)
-			ret = i2c_addr(port, msg);
-
-		if (msg->flags & I2C_M_RD) {
-			while (!ret && remaining--)
-				ret = i2c_get_byte(port, ptr++, !remaining);
-		} else {
-			while (!ret && remaining--)
-				ret = i2c_put_byte(port, *ptr++);
-		}
-
-		msg++;
-	}
-
-	i2c_stop(port);
-	return (ret < 0) ? ret : num;
-}
-
-static u32
-i2c_bit_func(struct i2c_adapter *adap)
-{
-	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
-}
-
-const struct i2c_algorithm nouveau_i2c_bit_algo = {
-	.master_xfer = i2c_bit_xfer,
-	.functionality = i2c_bit_func
-};
-
 static const uint32_t nv50_i2c_port[] = {
 	0x00e138, 0x00e150, 0x00e168, 0x00e180,
 	0x00e254, 0x00e274, 0x00e764, 0x00e780,
@@ -384,12 +211,10 @@ nouveau_i2c_init(struct drm_device *dev)
 		case 0: /* NV04:NV50 */
 			port->drive = entry[0];
 			port->sense = entry[1];
-			port->adapter.algo = &nouveau_i2c_bit_algo;
 			break;
 		case 4: /* NV4E */
 			port->drive = 0x600800 + entry[1];
 			port->sense = port->drive;
-			port->adapter.algo = &nouveau_i2c_bit_algo;
 			break;
 		case 5: /* NV50- */
 			port->drive = entry[0] & 0x0f;
@@ -402,7 +227,6 @@ nouveau_i2c_init(struct drm_device *dev)
 				port->drive = 0x00d014 + (port->drive * 0x20);
 				port->sense = port->drive;
 			}
-			port->adapter.algo = &nouveau_i2c_bit_algo;
 			break;
 		case 6: /* NV50- DP AUX */
 			port->drive = entry[0];
@@ -413,7 +237,7 @@ nouveau_i2c_init(struct drm_device *dev)
 			break;
 		}
 
-		if (!port->adapter.algo) {
+		if (!port->adapter.algo && !port->drive) {
 			NV_ERROR(dev, "I2C%d: type %d index %x/%x unknown\n",
 				 i, port->type, port->drive, port->sense);
 			kfree(port);
@@ -429,7 +253,26 @@ nouveau_i2c_init(struct drm_device *dev)
 		port->dcb = ROM32(entry[0]);
 		i2c_set_adapdata(&port->adapter, i2c);
 
-		ret = i2c_add_adapter(&port->adapter);
+		if (port->adapter.algo != &nouveau_dp_i2c_algo) {
+			port->adapter.algo_data = &port->bit;
+			port->bit.udelay = 10;
+			port->bit.timeout = usecs_to_jiffies(2200);
+			port->bit.data = port;
+			port->bit.setsda = i2c_drive_sda;
+			port->bit.setscl = i2c_drive_scl;
+			port->bit.getsda = i2c_sense_sda;
+			port->bit.getscl = i2c_sense_scl;
+
+			i2c_drive_scl(port, 0);
+			i2c_drive_sda(port, 1);
+			i2c_drive_scl(port, 1);
+
+			ret = i2c_bit_add_bus(&port->adapter);
+		} else {
+			port->adapter.algo = &nouveau_dp_i2c_algo;
+			ret = i2c_add_adapter(&port->adapter);
+		}
+
 		if (ret) {
 			NV_ERROR(dev, "I2C%d: failed register: %d\n", i, ret);
 			kfree(port);
diff --git a/drivers/gpu/drm/nouveau/nouveau_i2c.h b/drivers/gpu/drm/nouveau/nouveau_i2c.h
index 4d2e4e9031b..1d083893a4d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_i2c.h
+++ b/drivers/gpu/drm/nouveau/nouveau_i2c.h
@@ -34,6 +34,7 @@
 struct nouveau_i2c_chan {
 	struct i2c_adapter adapter;
 	struct drm_device *dev;
+	struct i2c_algo_bit_data bit;
 	struct list_head head;
 	u8  index;
 	u8  type;
diff --git a/drivers/gpu/drm/nouveau/nv10_gpio.c b/drivers/gpu/drm/nouveau/nv10_gpio.c
index 550ad3fcf0a..9d79180069d 100644
--- a/drivers/gpu/drm/nouveau/nv10_gpio.c
+++ b/drivers/gpu/drm/nouveau/nv10_gpio.c
@@ -65,7 +65,7 @@ nv10_gpio_drive(struct drm_device *dev, int line, int dir, int out)
 	if (line < 10) {
 		line = (line - 2) * 4;
 		reg  = NV_PCRTC_GPIO_EXT;
-		mask = 0x00000003 << ((line - 2) * 4);
+		mask = 0x00000003;
 		data = (dir << 1) | out;
 	} else
 	if (line < 14) {
diff --git a/drivers/gpu/drm/nouveau/nvc0_fb.c b/drivers/gpu/drm/nouveau/nvc0_fb.c
index 5bf55038fd9..f704e942372 100644
--- a/drivers/gpu/drm/nouveau/nvc0_fb.c
+++ b/drivers/gpu/drm/nouveau/nvc0_fb.c
@@ -54,6 +54,11 @@ nvc0_mfb_isr(struct drm_device *dev)
 			nvc0_mfb_subp_isr(dev, unit, subp);
 		units &= ~(1 << unit);
 	}
+
+	/* we do something horribly wrong and upset PMFB a lot, so mask off
+	 * interrupts from it after the first one until it's fixed
+	 */
+	nv_mask(dev, 0x000640, 0x02000000, 0x00000000);
 }
 
 static void
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index b5ff1f7b6f7..af1054f8202 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -575,6 +575,9 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
 
 		if (rdev->family < CHIP_RV770)
 			pll->flags |= RADEON_PLL_PREFER_MINM_OVER_MAXP;
+		/* use frac fb div on APUs */
+		if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE61(rdev))
+			pll->flags |= RADEON_PLL_USE_FRAC_FB_DIV;
 	} else {
 		pll->flags |= RADEON_PLL_LEGACY;
 
@@ -955,8 +958,8 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode
 		break;
 	}
 
-	if (radeon_encoder->active_device &
-	    (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) {
+	if ((radeon_encoder->active_device & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) ||
+	    (radeon_encoder_get_dp_bridge_encoder_id(encoder) != ENCODER_OBJECT_ID_NONE)) {
 		struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 		struct drm_connector *connector =
 			radeon_get_connector_for_encoder(encoder);
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index ea7df16e2f8..5992502a344 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -241,8 +241,8 @@ int radeon_wb_init(struct radeon_device *rdev)
 				rdev->wb.use_event = true;
 		}
 	}
-	/* always use writeback/events on NI */
-	if (ASIC_IS_DCE5(rdev)) {
+	/* always use writeback/events on NI, APUs */
+	if (rdev->family >= CHIP_PALM) {
 		rdev->wb.enabled = true;
 		rdev->wb.use_event = true;
 	}
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 8086c96e0b0..0a1d4bd65ed 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -533,7 +533,7 @@ static void radeon_crtc_init(struct drm_device *dev, int index)
 		radeon_legacy_init_crtc(dev, radeon_crtc);
 }
 
-static const char *encoder_names[36] = {
+static const char *encoder_names[37] = {
 	"NONE",
 	"INTERNAL_LVDS",
 	"INTERNAL_TMDS1",
@@ -570,6 +570,7 @@ static const char *encoder_names[36] = {
 	"INTERNAL_UNIPHY2",
 	"NUTMEG",
 	"TRAVIS",
+	"INTERNAL_VCE"
 };
 
 static const char *connector_names[15] = {