These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

9 files changed, 149 insertions, 319 deletions

diff --git a/kernel/drivers/gpu/drm/qxl/qxl_cmd.c b/kernel/drivers/gpu/drm/qxl/qxl_cmd.c
index f33251d67..fdc1833b1 100644
--- a/kernel/drivers/gpu/drm/qxl/qxl_cmd.c
+++ b/kernel/drivers/gpu/drm/qxl/qxl_cmd.c
@@ -248,7 +248,7 @@ int qxl_garbage_collect(struct qxl_device *qdev)
 		}
 	}
 
-	QXL_INFO(qdev, "%s: %lld\n", __func__, i);
+	QXL_INFO(qdev, "%s: %d\n", __func__, i);
 
 	return i;
 }
@@ -618,8 +618,8 @@ static int qxl_reap_surf(struct qxl_device *qdev, struct qxl_bo *surf, bool stal
 	int ret;
 
 	ret = qxl_bo_reserve(surf, false);
-	if (ret == -EBUSY)
-		return -EBUSY;
+	if (ret)
+		return ret;
 
 	if (stall)
 		mutex_unlock(&qdev->surf_evict_mutex);
@@ -628,9 +628,9 @@ static int qxl_reap_surf(struct qxl_device *qdev, struct qxl_bo *surf, bool stal
 
 	if (stall)
 		mutex_lock(&qdev->surf_evict_mutex);
-	if (ret == -EBUSY) {
+	if (ret) {
 		qxl_bo_unreserve(surf);
-		return -EBUSY;
+		return ret;
 	}
 
 	qxl_surface_evict_locked(qdev, surf, true);
diff --git a/kernel/drivers/gpu/drm/qxl/qxl_display.c b/kernel/drivers/gpu/drm/qxl/qxl_display.c
index 32248791b..183aea1ab 100644
--- a/kernel/drivers/gpu/drm/qxl/qxl_display.c
+++ b/kernel/drivers/gpu/drm/qxl/qxl_display.c
@@ -67,7 +67,7 @@ static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev)
 	crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config,
 		  sizeof(qdev->rom->client_monitors_config));
 	if (crc != qdev->rom->client_monitors_config_crc) {
-		qxl_io_log(qdev, "crc mismatch: have %X (%d) != %X\n", crc,
+		qxl_io_log(qdev, "crc mismatch: have %X (%zd) != %X\n", crc,
 			   sizeof(qdev->rom->client_monitors_config),
 			   qdev->rom->client_monitors_config_crc);
 		return 1;
@@ -244,6 +244,10 @@ static int qxl_crtc_page_flip(struct drm_crtc *crtc,
 	ret = qxl_bo_reserve(bo, false);
 	if (ret)
 		return ret;
+	ret = qxl_bo_pin(bo, bo->type, NULL);
+	qxl_bo_unreserve(bo);
+	if (ret)
+		return ret;
 
 	qxl_draw_dirty_fb(qdev, qfb_src, bo, 0, 0,
 			  &norect, one_clip_rect, inc);
@@ -257,7 +261,11 @@ static int qxl_crtc_page_flip(struct drm_crtc *crtc,
 	}
 	drm_vblank_put(dev, qcrtc->index);
 
-	qxl_bo_unreserve(bo);
+	ret = qxl_bo_reserve(bo, false);
+	if (!ret) {
+		qxl_bo_unpin(bo);
+		qxl_bo_unreserve(bo);
+	}
 
 	return 0;
 }
@@ -618,7 +626,7 @@ static int qxl_crtc_mode_set(struct drm_crtc *crtc,
 		  adjusted_mode->hdisplay,
 		  adjusted_mode->vdisplay);
 
-	if (qcrtc->index == 0)
+	if (bo->is_primary == false)
 		recreate_primary = true;
 
 	if (bo->surf.stride * bo->surf.height > qdev->vram_size) {
@@ -886,13 +894,15 @@ static enum drm_connector_status qxl_conn_detect(
 		drm_connector_to_qxl_output(connector);
 	struct drm_device *ddev = connector->dev;
 	struct qxl_device *qdev = ddev->dev_private;
-	int connected;
+	bool connected = false;
 
 	/* The first monitor is always connected */
-	connected = (output->index == 0) ||
-		    (qdev->client_monitors_config &&
-		     qdev->client_monitors_config->count > output->index &&
-		     qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]));
+	if (!qdev->client_monitors_config) {
+		if (output->index == 0)
+			connected = true;
+	} else
+		connected = qdev->client_monitors_config->count > output->index &&
+		     qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
 
 	DRM_DEBUG("#%d connected: %d\n", output->index, connected);
 	if (!connected)
diff --git a/kernel/drivers/gpu/drm/qxl/qxl_drv.c b/kernel/drivers/gpu/drm/qxl/qxl_drv.c
index e2d07085b..7307b07fe 100644
--- a/kernel/drivers/gpu/drm/qxl/qxl_drv.c
+++ b/kernel/drivers/gpu/drm/qxl/qxl_drv.c
@@ -196,17 +196,18 @@ static int qxl_pm_restore(struct device *dev)
 	return qxl_drm_resume(drm_dev, false);
 }
 
-static u32 qxl_noop_get_vblank_counter(struct drm_device *dev, int crtc)
+static u32 qxl_noop_get_vblank_counter(struct drm_device *dev,
+				       unsigned int pipe)
 {
-	return dev->vblank[crtc].count.counter;
+	return 0;
 }
 
-static int qxl_noop_enable_vblank(struct drm_device *dev, int crtc)
+static int qxl_noop_enable_vblank(struct drm_device *dev, unsigned int pipe)
 {
 	return 0;
 }
 
-static void qxl_noop_disable_vblank(struct drm_device *dev, int crtc)
+static void qxl_noop_disable_vblank(struct drm_device *dev, unsigned int pipe)
 {
 }
 
diff --git a/kernel/drivers/gpu/drm/qxl/qxl_drv.h b/kernel/drivers/gpu/drm/qxl/qxl_drv.h
index e66143cc1..01a86948e 100644
--- a/kernel/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/kernel/drivers/gpu/drm/qxl/qxl_drv.h
@@ -330,7 +330,7 @@ struct qxl_device {
 };
 
 /* forward declaration for QXL_INFO_IO */
-void qxl_io_log(struct qxl_device *qdev, const char *fmt, ...);
+__printf(2,3) void qxl_io_log(struct qxl_device *qdev, const char *fmt, ...);
 
 extern const struct drm_ioctl_desc qxl_ioctls[];
 extern int qxl_max_ioctl;
diff --git a/kernel/drivers/gpu/drm/qxl/qxl_fb.c b/kernel/drivers/gpu/drm/qxl/qxl_fb.c
index f778c0e8a..c4a552637 100644
--- a/kernel/drivers/gpu/drm/qxl/qxl_fb.c
+++ b/kernel/drivers/gpu/drm/qxl/qxl_fb.c
@@ -37,21 +37,6 @@
 
 #define QXL_DIRTY_DELAY (HZ / 30)
 
-#define QXL_FB_OP_FILLRECT 1
-#define QXL_FB_OP_COPYAREA 2
-#define QXL_FB_OP_IMAGEBLIT 3
-
-struct qxl_fb_op {
-	struct list_head head;
-	int op_type;
-	union {
-		struct fb_fillrect fr;
-		struct fb_copyarea ca;
-		struct fb_image ib;
-	} op;
-	void *img_data;
-};
-
 struct qxl_fbdev {
 	struct drm_fb_helper helper;
 	struct qxl_framebuffer	qfb;
@@ -66,7 +51,6 @@ struct qxl_fbdev {
 	/* dirty memory logging */
 	struct {
 		spinlock_t lock;
-		bool active;
 		unsigned x1;
 		unsigned y1;
 		unsigned x2;
@@ -105,23 +89,33 @@ static void qxl_fb_dirty_flush(struct fb_info *info)
 	struct qxl_device *qdev = qfbdev->qdev;
 	struct qxl_fb_image qxl_fb_image;
 	struct fb_image *image = &qxl_fb_image.fb_image;
+	unsigned long flags;
 	u32 x1, x2, y1, y2;
 
 	/* TODO: hard coding 32 bpp */
 	int stride = qfbdev->qfb.base.pitches[0];
 
+	spin_lock_irqsave(&qfbdev->dirty.lock, flags);
+
 	x1 = qfbdev->dirty.x1;
 	x2 = qfbdev->dirty.x2;
 	y1 = qfbdev->dirty.y1;
 	y2 = qfbdev->dirty.y2;
+	qfbdev->dirty.x1 = 0;
+	qfbdev->dirty.x2 = 0;
+	qfbdev->dirty.y1 = 0;
+	qfbdev->dirty.y2 = 0;
+
+	spin_unlock_irqrestore(&qfbdev->dirty.lock, flags);
+
 	/*
 	 * we are using a shadow draw buffer, at qdev->surface0_shadow
 	 */
 	qxl_io_log(qdev, "dirty x[%d, %d], y[%d, %d]", x1, x2, y1, y2);
 	image->dx = x1;
 	image->dy = y1;
-	image->width = x2 - x1;
-	image->height = y2 - y1;
+	image->width = x2 - x1 + 1;
+	image->height = y2 - y1 + 1;
 	image->fg_color = 0xffffffff; /* unused, just to avoid uninitialized
 					 warnings */
 	image->bg_color = 0;
@@ -136,10 +130,40 @@ static void qxl_fb_dirty_flush(struct fb_info *info)
 
 	qxl_fb_image_init(&qxl_fb_image, qdev, info, NULL);
 	qxl_draw_opaque_fb(&qxl_fb_image, stride);
-	qfbdev->dirty.x1 = 0;
-	qfbdev->dirty.x2 = 0;
-	qfbdev->dirty.y1 = 0;
-	qfbdev->dirty.y2 = 0;
+}
+
+static void qxl_dirty_update(struct qxl_fbdev *qfbdev,
+			     int x, int y, int width, int height)
+{
+	struct qxl_device *qdev = qfbdev->qdev;
+	unsigned long flags;
+	int x2, y2;
+
+	x2 = x + width - 1;
+	y2 = y + height - 1;
+
+	spin_lock_irqsave(&qfbdev->dirty.lock, flags);
+
+	if ((qfbdev->dirty.y2 - qfbdev->dirty.y1) &&
+	    (qfbdev->dirty.x2 - qfbdev->dirty.x1)) {
+		if (qfbdev->dirty.y1 < y)
+			y = qfbdev->dirty.y1;
+		if (qfbdev->dirty.y2 > y2)
+			y2 = qfbdev->dirty.y2;
+		if (qfbdev->dirty.x1 < x)
+			x = qfbdev->dirty.x1;
+		if (qfbdev->dirty.x2 > x2)
+			x2 = qfbdev->dirty.x2;
+	}
+
+	qfbdev->dirty.x1 = x;
+	qfbdev->dirty.x2 = x2;
+	qfbdev->dirty.y1 = y;
+	qfbdev->dirty.y2 = y2;
+
+	spin_unlock_irqrestore(&qfbdev->dirty.lock, flags);
+
+	schedule_work(&qdev->fb_work);
 }
 
 static void qxl_deferred_io(struct fb_info *info,
@@ -162,234 +186,51 @@ static void qxl_deferred_io(struct fb_info *info,
 	if (min < max) {
 		y1 = min / info->fix.line_length;
 		y2 = (max / info->fix.line_length) + 1;
-
-		/* TODO: add spin lock? */
-		/* spin_lock_irqsave(&qfbdev->dirty.lock, flags); */
-		qfbdev->dirty.x1 = 0;
-		qfbdev->dirty.y1 = y1;
-		qfbdev->dirty.x2 = info->var.xres;
-		qfbdev->dirty.y2 = y2;
-		/* spin_unlock_irqrestore(&qfbdev->dirty.lock, flags); */
+		qxl_dirty_update(qfbdev, 0, y1, info->var.xres, y2 - y1);
 	}
-
-	qxl_fb_dirty_flush(info);
 };
 
-
 static struct fb_deferred_io qxl_defio = {
 	.delay		= QXL_DIRTY_DELAY,
 	.deferred_io	= qxl_deferred_io,
 };
 
-static void qxl_fb_delayed_fillrect(struct qxl_fbdev *qfbdev,
-				    const struct fb_fillrect *fb_rect)
-{
-	struct qxl_fb_op *op;
-	unsigned long flags;
-
-	op = kmalloc(sizeof(struct qxl_fb_op), GFP_ATOMIC | __GFP_NOWARN);
-	if (!op)
-		return;
-
-	op->op.fr = *fb_rect;
-	op->img_data = NULL;
-	op->op_type = QXL_FB_OP_FILLRECT;
-
-	spin_lock_irqsave(&qfbdev->delayed_ops_lock, flags);
-	list_add_tail(&op->head, &qfbdev->delayed_ops);
-	spin_unlock_irqrestore(&qfbdev->delayed_ops_lock, flags);
-}
-
-static void qxl_fb_delayed_copyarea(struct qxl_fbdev *qfbdev,
-				    const struct fb_copyarea *fb_copy)
-{
-	struct qxl_fb_op *op;
-	unsigned long flags;
-
-	op = kmalloc(sizeof(struct qxl_fb_op), GFP_ATOMIC | __GFP_NOWARN);
-	if (!op)
-		return;
-
-	op->op.ca = *fb_copy;
-	op->img_data = NULL;
-	op->op_type = QXL_FB_OP_COPYAREA;
-
-	spin_lock_irqsave(&qfbdev->delayed_ops_lock, flags);
-	list_add_tail(&op->head, &qfbdev->delayed_ops);
-	spin_unlock_irqrestore(&qfbdev->delayed_ops_lock, flags);
-}
-
-static void qxl_fb_delayed_imageblit(struct qxl_fbdev *qfbdev,
-				     const struct fb_image *fb_image)
-{
-	struct qxl_fb_op *op;
-	unsigned long flags;
-	uint32_t size = fb_image->width * fb_image->height * (fb_image->depth >= 8 ? fb_image->depth / 8 : 1);
-
-	op = kmalloc(sizeof(struct qxl_fb_op) + size, GFP_ATOMIC | __GFP_NOWARN);
-	if (!op)
-		return;
-
-	op->op.ib = *fb_image;
-	op->img_data = (void *)(op + 1);
-	op->op_type = QXL_FB_OP_IMAGEBLIT;
-
-	memcpy(op->img_data, fb_image->data, size);
-
-	op->op.ib.data = op->img_data;
-	spin_lock_irqsave(&qfbdev->delayed_ops_lock, flags);
-	list_add_tail(&op->head, &qfbdev->delayed_ops);
-	spin_unlock_irqrestore(&qfbdev->delayed_ops_lock, flags);
-}
-
-static void qxl_fb_fillrect_internal(struct fb_info *info,
-				     const struct fb_fillrect *fb_rect)
-{
-	struct qxl_fbdev *qfbdev = info->par;
-	struct qxl_device *qdev = qfbdev->qdev;
-	struct qxl_rect rect;
-	uint32_t color;
-	int x = fb_rect->dx;
-	int y = fb_rect->dy;
-	int width = fb_rect->width;
-	int height = fb_rect->height;
-	uint16_t rop;
-	struct qxl_draw_fill qxl_draw_fill_rec;
-
-	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
-	    info->fix.visual == FB_VISUAL_DIRECTCOLOR)
-		color = ((u32 *) (info->pseudo_palette))[fb_rect->color];
-	else
-		color = fb_rect->color;
-	rect.left = x;
-	rect.right = x + width;
-	rect.top = y;
-	rect.bottom = y + height;
-	switch (fb_rect->rop) {
-	case ROP_XOR:
-		rop = SPICE_ROPD_OP_XOR;
-		break;
-	case ROP_COPY:
-		rop = SPICE_ROPD_OP_PUT;
-		break;
-	default:
-		pr_err("qxl_fb_fillrect(): unknown rop, "
-		       "defaulting to SPICE_ROPD_OP_PUT\n");
-		rop = SPICE_ROPD_OP_PUT;
-	}
-	qxl_draw_fill_rec.qdev = qdev;
-	qxl_draw_fill_rec.rect = rect;
-	qxl_draw_fill_rec.color = color;
-	qxl_draw_fill_rec.rop = rop;
-
-	qxl_draw_fill(&qxl_draw_fill_rec);
-}
-
 static void qxl_fb_fillrect(struct fb_info *info,
-			    const struct fb_fillrect *fb_rect)
-{
-	struct qxl_fbdev *qfbdev = info->par;
-	struct qxl_device *qdev = qfbdev->qdev;
-
-	if (!drm_can_sleep()) {
-		qxl_fb_delayed_fillrect(qfbdev, fb_rect);
-		schedule_work(&qdev->fb_work);
-		return;
-	}
-	/* make sure any previous work is done */
-	flush_work(&qdev->fb_work);
-	qxl_fb_fillrect_internal(info, fb_rect);
-}
-
-static void qxl_fb_copyarea_internal(struct fb_info *info,
-				     const struct fb_copyarea *region)
+			    const struct fb_fillrect *rect)
 {
 	struct qxl_fbdev *qfbdev = info->par;
 
-	qxl_draw_copyarea(qfbdev->qdev,
-			  region->width, region->height,
-			  region->sx, region->sy,
-			  region->dx, region->dy);
+	drm_fb_helper_sys_fillrect(info, rect);
+	qxl_dirty_update(qfbdev, rect->dx, rect->dy, rect->width,
+			 rect->height);
 }
 
 static void qxl_fb_copyarea(struct fb_info *info,
-			    const struct fb_copyarea *region)
+			    const struct fb_copyarea *area)
 {
 	struct qxl_fbdev *qfbdev = info->par;
-	struct qxl_device *qdev = qfbdev->qdev;
 
-	if (!drm_can_sleep()) {
-		qxl_fb_delayed_copyarea(qfbdev, region);
-		schedule_work(&qdev->fb_work);
-		return;
-	}
-	/* make sure any previous work is done */
-	flush_work(&qdev->fb_work);
-	qxl_fb_copyarea_internal(info, region);
-}
-
-static void qxl_fb_imageblit_safe(struct qxl_fb_image *qxl_fb_image)
-{
-	qxl_draw_opaque_fb(qxl_fb_image, 0);
-}
-
-static void qxl_fb_imageblit_internal(struct fb_info *info,
-				      const struct fb_image *image)
-{
-	struct qxl_fbdev *qfbdev = info->par;
-	struct qxl_fb_image qxl_fb_image;
-
-	/* ensure proper order  rendering operations - TODO: must do this
-	 * for everything. */
-	qxl_fb_image_init(&qxl_fb_image, qfbdev->qdev, info, image);
-	qxl_fb_imageblit_safe(&qxl_fb_image);
+	drm_fb_helper_sys_copyarea(info, area);
+	qxl_dirty_update(qfbdev, area->dx, area->dy, area->width,
+			 area->height);
 }
 
 static void qxl_fb_imageblit(struct fb_info *info,
 			     const struct fb_image *image)
 {
 	struct qxl_fbdev *qfbdev = info->par;
-	struct qxl_device *qdev = qfbdev->qdev;
 
-	if (!drm_can_sleep()) {
-		qxl_fb_delayed_imageblit(qfbdev, image);
-		schedule_work(&qdev->fb_work);
-		return;
-	}
-	/* make sure any previous work is done */
-	flush_work(&qdev->fb_work);
-	qxl_fb_imageblit_internal(info, image);
+	drm_fb_helper_sys_imageblit(info, image);
+	qxl_dirty_update(qfbdev, image->dx, image->dy, image->width,
+			 image->height);
 }
 
 static void qxl_fb_work(struct work_struct *work)
 {
 	struct qxl_device *qdev = container_of(work, struct qxl_device, fb_work);
-	unsigned long flags;
-	struct qxl_fb_op *entry, *tmp;
 	struct qxl_fbdev *qfbdev = qdev->mode_info.qfbdev;
 
-	/* since the irq context just adds entries to the end of the
-	   list dropping the lock should be fine, as entry isn't modified
-	   in the operation code */
-	spin_lock_irqsave(&qfbdev->delayed_ops_lock, flags);
-	list_for_each_entry_safe(entry, tmp, &qfbdev->delayed_ops, head) {
-		spin_unlock_irqrestore(&qfbdev->delayed_ops_lock, flags);
-		switch (entry->op_type) {
-		case QXL_FB_OP_FILLRECT:
-			qxl_fb_fillrect_internal(qfbdev->helper.fbdev, &entry->op.fr);
-			break;
-		case QXL_FB_OP_COPYAREA:
-			qxl_fb_copyarea_internal(qfbdev->helper.fbdev, &entry->op.ca);
-			break;
-		case QXL_FB_OP_IMAGEBLIT:
-			qxl_fb_imageblit_internal(qfbdev->helper.fbdev, &entry->op.ib);
-			break;
-		}
-		spin_lock_irqsave(&qfbdev->delayed_ops_lock, flags);
-		list_del(&entry->head);
-		kfree(entry);
-	}
-	spin_unlock_irqrestore(&qfbdev->delayed_ops_lock, flags);
+	qxl_fb_dirty_flush(qfbdev->helper.fbdev);
 }
 
 int qxl_fb_init(struct qxl_device *qdev)
@@ -507,7 +348,6 @@ static int qxlfb_create(struct qxl_fbdev *qfbdev,
 	struct drm_mode_fb_cmd2 mode_cmd;
 	struct drm_gem_object *gobj = NULL;
 	struct qxl_bo *qbo = NULL;
-	struct device *device = &qdev->pdev->dev;
 	int ret;
 	int size;
 	int bpp = sizes->surface_bpp;
@@ -536,9 +376,9 @@ static int qxlfb_create(struct qxl_fbdev *qfbdev,
 		 shadow);
 	size = mode_cmd.pitches[0] * mode_cmd.height;
 
-	info = framebuffer_alloc(0, device);
-	if (info == NULL) {
-		ret = -ENOMEM;
+	info = drm_fb_helper_alloc_fbi(&qfbdev->helper);
+	if (IS_ERR(info)) {
+		ret = PTR_ERR(info);
 		goto out_unref;
 	}
 
@@ -550,7 +390,7 @@ static int qxlfb_create(struct qxl_fbdev *qfbdev,
 
 	/* setup helper with fb data */
 	qfbdev->helper.fb = fb;
-	qfbdev->helper.fbdev = info;
+
 	qfbdev->shadow = shadow;
 	strcpy(info->fix.id, "qxldrmfb");
 
@@ -572,11 +412,6 @@ static int qxlfb_create(struct qxl_fbdev *qfbdev,
 			       sizes->fb_height);
 
 	/* setup aperture base/size for vesafb takeover */
-	info->apertures = alloc_apertures(1);
-	if (!info->apertures) {
-		ret = -ENOMEM;
-		goto out_unref;
-	}
 	info->apertures->ranges[0].base = qdev->ddev->mode_config.fb_base;
 	info->apertures->ranges[0].size = qdev->vram_size;
 
@@ -585,13 +420,7 @@ static int qxlfb_create(struct qxl_fbdev *qfbdev,
 
 	if (info->screen_base == NULL) {
 		ret = -ENOSPC;
-		goto out_unref;
-	}
-
-	ret = fb_alloc_cmap(&info->cmap, 256, 0);
-	if (ret) {
-		ret = -ENOMEM;
-		goto out_unref;
+		goto out_destroy_fbi;
 	}
 
 	info->fbdefio = &qxl_defio;
@@ -603,6 +432,8 @@ static int qxlfb_create(struct qxl_fbdev *qfbdev,
 	DRM_INFO("fb: depth %d, pitch %d, width %d, height %d\n", fb->depth, fb->pitches[0], fb->width, fb->height);
 	return 0;
 
+out_destroy_fbi:
+	drm_fb_helper_release_fbi(&qfbdev->helper);
 out_unref:
 	if (qbo) {
 		ret = qxl_bo_reserve(qbo, false);
@@ -641,15 +472,11 @@ static int qxl_fb_find_or_create_single(
 
 static int qxl_fbdev_destroy(struct drm_device *dev, struct qxl_fbdev *qfbdev)
 {
-	struct fb_info *info;
 	struct qxl_framebuffer *qfb = &qfbdev->qfb;
 
-	if (qfbdev->helper.fbdev) {
-		info = qfbdev->helper.fbdev;
+	drm_fb_helper_unregister_fbi(&qfbdev->helper);
+	drm_fb_helper_release_fbi(&qfbdev->helper);
 
-		unregister_framebuffer(info);
-		framebuffer_release(info);
-	}
 	if (qfb->obj) {
 		qxlfb_destroy_pinned_object(qfb->obj);
 		qfb->obj = NULL;
@@ -678,6 +505,7 @@ int qxl_fbdev_init(struct qxl_device *qdev)
 	qfbdev->qdev = qdev;
 	qdev->mode_info.qfbdev = qfbdev;
 	spin_lock_init(&qfbdev->delayed_ops_lock);
+	spin_lock_init(&qfbdev->dirty.lock);
 	INIT_LIST_HEAD(&qfbdev->delayed_ops);
 
 	drm_fb_helper_prepare(qdev->ddev, &qfbdev->helper,
@@ -718,7 +546,7 @@ void qxl_fbdev_fini(struct qxl_device *qdev)
 
 void qxl_fbdev_set_suspend(struct qxl_device *qdev, int state)
 {
-	fb_set_suspend(qdev->mode_info.qfbdev->helper.fbdev, state);
+	drm_fb_helper_set_suspend(&qdev->mode_info.qfbdev->helper, state);
 }
 
 bool qxl_fbdev_qobj_is_fb(struct qxl_device *qdev, struct qxl_bo *qobj)
diff --git a/kernel/drivers/gpu/drm/qxl/qxl_gem.c b/kernel/drivers/gpu/drm/qxl/qxl_gem.c
index b96f0c9d8..d9746e904 100644
--- a/kernel/drivers/gpu/drm/qxl/qxl_gem.c
+++ b/kernel/drivers/gpu/drm/qxl/qxl_gem.c
@@ -31,9 +31,15 @@
 void qxl_gem_object_free(struct drm_gem_object *gobj)
 {
 	struct qxl_bo *qobj = gem_to_qxl_bo(gobj);
+	struct qxl_device *qdev;
+	struct ttm_buffer_object *tbo;
 
-	if (qobj)
-		qxl_bo_unref(&qobj);
+	qdev = (struct qxl_device *)gobj->dev->dev_private;
+
+	qxl_surface_evict(qdev, qobj, false);
+
+	tbo = &qobj->tbo;
+	ttm_bo_unref(&tbo);
 }
 
 int qxl_gem_object_create(struct qxl_device *qdev, int size,
diff --git a/kernel/drivers/gpu/drm/qxl/qxl_ioctl.c b/kernel/drivers/gpu/drm/qxl/qxl_ioctl.c
index 7354a4cda..7c2e78201 100644
--- a/kernel/drivers/gpu/drm/qxl/qxl_ioctl.c
+++ b/kernel/drivers/gpu/drm/qxl/qxl_ioctl.c
@@ -107,9 +107,9 @@ apply_surf_reloc(struct qxl_device *qdev, struct qxl_reloc_info *info)
 }
 
 /* return holding the reference to this object */
-static struct qxl_bo *qxlhw_handle_to_bo(struct qxl_device *qdev,
-					 struct drm_file *file_priv, uint64_t handle,
-					 struct qxl_release *release)
+static int qxlhw_handle_to_bo(struct qxl_device *qdev,
+			      struct drm_file *file_priv, uint64_t handle,
+			      struct qxl_release *release, struct qxl_bo **qbo_p)
 {
 	struct drm_gem_object *gobj;
 	struct qxl_bo *qobj;
@@ -117,17 +117,17 @@ static struct qxl_bo *qxlhw_handle_to_bo(struct qxl_device *qdev,
 
 	gobj = drm_gem_object_lookup(qdev->ddev, file_priv, handle);
 	if (!gobj)
-		return NULL;
+		return -EINVAL;
 
 	qobj = gem_to_qxl_bo(gobj);
 
 	ret = qxl_release_list_add(release, qobj);
-	if (ret) {
-		drm_gem_object_unreference_unlocked(gobj);
-		return NULL;
-	}
+	drm_gem_object_unreference_unlocked(gobj);
+	if (ret)
+		return ret;
 
-	return qobj;
+	*qbo_p = qobj;
+	return 0;
 }
 
 /*
@@ -145,7 +145,7 @@ static int qxl_process_single_command(struct qxl_device *qdev,
 	struct qxl_release *release;
 	struct qxl_bo *cmd_bo;
 	void *fb_cmd;
-	int i, j, ret, num_relocs;
+	int i, ret, num_relocs;
 	int unwritten;
 
 	switch (cmd->type) {
@@ -168,7 +168,8 @@ static int qxl_process_single_command(struct qxl_device *qdev,
 		       cmd->command_size))
 		return -EFAULT;
 
-	reloc_info = kmalloc(sizeof(struct qxl_reloc_info) * cmd->relocs_num, GFP_KERNEL);
+	reloc_info = kmalloc_array(cmd->relocs_num,
+				   sizeof(struct qxl_reloc_info), GFP_KERNEL);
 	if (!reloc_info)
 		return -ENOMEM;
 
@@ -212,7 +213,7 @@ static int qxl_process_single_command(struct qxl_device *qdev,
 		/* add the bos to the list of bos to validate -
 		   need to validate first then process relocs? */
 		if (reloc.reloc_type != QXL_RELOC_TYPE_BO && reloc.reloc_type != QXL_RELOC_TYPE_SURF) {
-			DRM_DEBUG("unknown reloc type %d\n", reloc_info[i].type);
+			DRM_DEBUG("unknown reloc type %d\n", reloc.reloc_type);
 
 			ret = -EINVAL;
 			goto out_free_bos;
@@ -220,13 +221,10 @@ static int qxl_process_single_command(struct qxl_device *qdev,
 		reloc_info[i].type = reloc.reloc_type;
 
 		if (reloc.dst_handle) {
-			reloc_info[i].dst_bo = qxlhw_handle_to_bo(qdev, file_priv,
-								  reloc.dst_handle, release);
-			if (!reloc_info[i].dst_bo) {
-				ret = -EINVAL;
-				reloc_info[i].src_bo = NULL;
+			ret = qxlhw_handle_to_bo(qdev, file_priv, reloc.dst_handle, release,
+						 &reloc_info[i].dst_bo);
+			if (ret)
 				goto out_free_bos;
-			}
 			reloc_info[i].dst_offset = reloc.dst_offset;
 		} else {
 			reloc_info[i].dst_bo = cmd_bo;
@@ -235,16 +233,11 @@ static int qxl_process_single_command(struct qxl_device *qdev,
 		num_relocs++;
 
 		/* reserve and validate the reloc dst bo */
-		if (reloc.reloc_type == QXL_RELOC_TYPE_BO || reloc.src_handle > 0) {
-			reloc_info[i].src_bo =
-				qxlhw_handle_to_bo(qdev, file_priv,
-						   reloc.src_handle, release);
-			if (!reloc_info[i].src_bo) {
-				if (reloc_info[i].dst_bo != cmd_bo)
-					drm_gem_object_unreference_unlocked(&reloc_info[i].dst_bo->gem_base);
-				ret = -EINVAL;
+		if (reloc.reloc_type == QXL_RELOC_TYPE_BO || reloc.src_handle) {
+			ret = qxlhw_handle_to_bo(qdev, file_priv, reloc.src_handle, release,
+						 &reloc_info[i].src_bo);
+			if (ret)
 				goto out_free_bos;
-			}
 			reloc_info[i].src_offset = reloc.src_offset;
 		} else {
 			reloc_info[i].src_bo = NULL;
@@ -271,12 +264,6 @@ static int qxl_process_single_command(struct qxl_device *qdev,
 		qxl_release_fence_buffer_objects(release);
 
 out_free_bos:
-	for (j = 0; j < num_relocs; j++) {
-		if (reloc_info[j].dst_bo != cmd_bo)
-			drm_gem_object_unreference_unlocked(&reloc_info[j].dst_bo->gem_base);
-		if (reloc_info[j].src_bo && reloc_info[j].src_bo != cmd_bo)
-			drm_gem_object_unreference_unlocked(&reloc_info[j].src_bo->gem_base);
-	}
 out_free_release:
 	if (ret)
 		qxl_release_free(qdev, release);
@@ -436,21 +423,21 @@ static int qxl_alloc_surf_ioctl(struct drm_device *dev, void *data,
 }
 
 const struct drm_ioctl_desc qxl_ioctls[] = {
-	DRM_IOCTL_DEF_DRV(QXL_ALLOC, qxl_alloc_ioctl, DRM_AUTH|DRM_UNLOCKED),
+	DRM_IOCTL_DEF_DRV(QXL_ALLOC, qxl_alloc_ioctl, DRM_AUTH),
 
-	DRM_IOCTL_DEF_DRV(QXL_MAP, qxl_map_ioctl, DRM_AUTH|DRM_UNLOCKED),
+	DRM_IOCTL_DEF_DRV(QXL_MAP, qxl_map_ioctl, DRM_AUTH),
 
 	DRM_IOCTL_DEF_DRV(QXL_EXECBUFFER, qxl_execbuffer_ioctl,
-							DRM_AUTH|DRM_UNLOCKED),
+							DRM_AUTH),
 	DRM_IOCTL_DEF_DRV(QXL_UPDATE_AREA, qxl_update_area_ioctl,
-							DRM_AUTH|DRM_UNLOCKED),
+							DRM_AUTH),
 	DRM_IOCTL_DEF_DRV(QXL_GETPARAM, qxl_getparam_ioctl,
-							DRM_AUTH|DRM_UNLOCKED),
+							DRM_AUTH),
 	DRM_IOCTL_DEF_DRV(QXL_CLIENTCAP, qxl_clientcap_ioctl,
-							DRM_AUTH|DRM_UNLOCKED),
+							DRM_AUTH),
 
 	DRM_IOCTL_DEF_DRV(QXL_ALLOC_SURF, qxl_alloc_surf_ioctl,
-			  DRM_AUTH|DRM_UNLOCKED),
+			  DRM_AUTH),
 };
 
 int qxl_max_ioctls = ARRAY_SIZE(qxl_ioctls);
diff --git a/kernel/drivers/gpu/drm/qxl/qxl_object.c b/kernel/drivers/gpu/drm/qxl/qxl_object.c
index cdeaf08fd..b28370e01 100644
--- a/kernel/drivers/gpu/drm/qxl/qxl_object.c
+++ b/kernel/drivers/gpu/drm/qxl/qxl_object.c
@@ -208,19 +208,16 @@ void qxl_bo_kunmap_atomic_page(struct qxl_device *qdev,
 
 void qxl_bo_unref(struct qxl_bo **bo)
 {
-	struct ttm_buffer_object *tbo;
-
 	if ((*bo) == NULL)
 		return;
-	tbo = &((*bo)->tbo);
-	ttm_bo_unref(&tbo);
-	if (tbo == NULL)
-		*bo = NULL;
+
+	drm_gem_object_unreference_unlocked(&(*bo)->gem_base);
+	*bo = NULL;
 }
 
 struct qxl_bo *qxl_bo_ref(struct qxl_bo *bo)
 {
-	ttm_bo_reference(&bo->tbo);
+	drm_gem_object_reference(&bo->gem_base);
 	return bo;
 }
 
@@ -275,7 +272,6 @@ void qxl_bo_force_delete(struct qxl_device *qdev)
 		return;
 	dev_err(qdev->dev, "Userspace still has active objects !\n");
 	list_for_each_entry_safe(bo, n, &qdev->gem.objects, list) {
-		mutex_lock(&qdev->ddev->struct_mutex);
 		dev_err(qdev->dev, "%p %p %lu %lu force free\n",
 			&bo->gem_base, bo, (unsigned long)bo->gem_base.size,
 			*((unsigned long *)&bo->gem_base.refcount));
@@ -283,8 +279,7 @@ void qxl_bo_force_delete(struct qxl_device *qdev)
 		list_del_init(&bo->list);
 		mutex_unlock(&qdev->gem.mutex);
 		/* this should unref the ttm bo */
-		drm_gem_object_unreference(&bo->gem_base);
-		mutex_unlock(&qdev->ddev->struct_mutex);
+		drm_gem_object_unreference_unlocked(&bo->gem_base);
 	}
 }
 
diff --git a/kernel/drivers/gpu/drm/qxl/qxl_release.c b/kernel/drivers/gpu/drm/qxl/qxl_release.c
index d9b25684a..4efa8e261 100644
--- a/kernel/drivers/gpu/drm/qxl/qxl_release.c
+++ b/kernel/drivers/gpu/drm/qxl/qxl_release.c
@@ -122,7 +122,7 @@ static const struct fence_ops qxl_fence_ops = {
 	.wait = qxl_fence_wait,
 };
 
-static uint64_t
+static int
 qxl_release_alloc(struct qxl_device *qdev, int type,
 		  struct qxl_release **ret)
 {
@@ -153,7 +153,7 @@ qxl_release_alloc(struct qxl_device *qdev, int type,
 		return handle;
 	}
 	*ret = release;
-	QXL_INFO(qdev, "allocated release %lld\n", handle);
+	QXL_INFO(qdev, "allocated release %d\n", handle);
 	release->id = handle;
 	return handle;
 }
@@ -307,7 +307,7 @@ int qxl_alloc_surface_release_reserved(struct qxl_device *qdev,
 		idr_ret = qxl_release_alloc(qdev, QXL_RELEASE_SURFACE_CMD, release);
 		if (idr_ret < 0)
 			return idr_ret;
-		bo = qxl_bo_ref(to_qxl_bo(entry->tv.bo));
+		bo = to_qxl_bo(entry->tv.bo);
 
 		(*release)->release_offset = create_rel->release_offset + 64;
 
@@ -316,8 +316,6 @@ int qxl_alloc_surface_release_reserved(struct qxl_device *qdev,
 		info = qxl_release_map(qdev, *release);
 		info->id = idr_ret;
 		qxl_release_unmap(qdev, *release, info);
-
-		qxl_bo_unref(&bo);
 		return 0;
 	}
 
@@ -363,6 +361,7 @@ int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size,
 		ret = qxl_release_bo_alloc(qdev, &qdev->current_release_bo[cur_idx]);
 		if (ret) {
 			mutex_unlock(&qdev->release_mutex);
+			qxl_release_free(qdev, *release);
 			return ret;
 		}
 	}
@@ -377,13 +376,17 @@ int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size,
 
 	mutex_unlock(&qdev->release_mutex);
 
-	qxl_release_list_add(*release, bo);
+	ret = qxl_release_list_add(*release, bo);
+	qxl_bo_unref(&bo);
+	if (ret) {
+		qxl_release_free(qdev, *release);
+		return ret;
+	}
 
 	info = qxl_release_map(qdev, *release);
 	info->id = idr_ret;
 	qxl_release_unmap(qdev, *release, info);
 
-	qxl_bo_unref(&bo);
 	return ret;
 }