These changes are the raw update to linux-4.4.6-rt14. Kernel sources
[kvmfornfv.git] / kernel / drivers / gpu / drm / qxl / qxl_fb.c
index f778c0e..c4a5526 100644 (file)
 
 #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)