1 files changed, 173 insertions, 0 deletions

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 5cae0b3eee9b..4fe321dc900c 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -125,6 +125,15 @@ static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
                  drm_tv_subconnector_enum_list)
 
+static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
+        { DRM_MODE_DIRTY_OFF,      "Off"      },
+        { DRM_MODE_DIRTY_ON,       "On"       },
+        { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
+};
+
+DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
+                 drm_dirty_info_enum_list)
+
 struct drm_conn_prop_enum_list {
         int type;
         char *name;
@@ -802,6 +811,36 @@ int drm_mode_create_dithering_property(struct drm_device *dev)
 EXPORT_SYMBOL(drm_mode_create_dithering_property);
 
 /**
+ * drm_mode_create_dirty_property - create dirty property
+ * @dev: DRM device
+ *
+ * Called by a driver the first time it's needed, must be attached to desired
+ * connectors.
+ */
+int drm_mode_create_dirty_info_property(struct drm_device *dev)
+{
+        struct drm_property *dirty_info;
+        int i;
+
+        if (dev->mode_config.dirty_info_property)
+                return 0;
+
+        dirty_info =
+                drm_property_create(dev, DRM_MODE_PROP_ENUM |
+                                    DRM_MODE_PROP_IMMUTABLE,
+                                    "dirty",
+                                    ARRAY_SIZE(drm_dirty_info_enum_list));
+        for (i = 0; i < ARRAY_SIZE(drm_dirty_info_enum_list); i++)
+                drm_property_add_enum(dirty_info, i,
+                                      drm_dirty_info_enum_list[i].type,
+                                      drm_dirty_info_enum_list[i].name);
+        dev->mode_config.dirty_info_property = dirty_info;
+
+        return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
+
+/**
  * drm_mode_config_init - initialize DRM mode_configuration structure
  * @dev: DRM device
  *
@@ -1753,6 +1792,71 @@ out:
         return ret;
 }
 
+int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
+                           void *data, struct drm_file *file_priv)
+{
+        struct drm_clip_rect __user *clips_ptr;
+        struct drm_clip_rect *clips = NULL;
+        struct drm_mode_fb_dirty_cmd *r = data;
+        struct drm_mode_object *obj;
+        struct drm_framebuffer *fb;
+        unsigned flags;
+        int num_clips;
+        int ret = 0;
+
+        mutex_lock(&dev->mode_config.mutex);
+        obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
+        if (!obj) {
+                DRM_ERROR("invalid framebuffer id\n");
+                ret = -EINVAL;
+                goto out_err1;
+        }
+        fb = obj_to_fb(obj);
+
+        num_clips = r->num_clips;
+        clips_ptr = (struct drm_clip_rect *)(unsigned long)r->clips_ptr;
+
+        if (!num_clips != !clips_ptr) {
+                ret = -EINVAL;
+                goto out_err1;
+        }
+
+        flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
+
+        /* If userspace annotates copy, clips must come in pairs */
+        if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
+                ret = -EINVAL;
+                goto out_err1;
+        }
+
+        if (num_clips && clips_ptr) {
+                clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
+                if (!clips) {
+                        ret = -ENOMEM;
+                        goto out_err1;
+                }
+
+                ret = copy_from_user(clips, clips_ptr,
+                                     num_clips * sizeof(*clips));
+                if (ret)
+                        goto out_err2;
+        }
+
+        if (fb->funcs->dirty) {
+                ret = fb->funcs->dirty(fb, flags, r->color, clips, num_clips);
+        } else {
+                ret = -ENOSYS;
+                goto out_err2;
+        }
+
+out_err2:
+        kfree(clips);
+out_err1:
+        mutex_unlock(&dev->mode_config.mutex);
+        return ret;
+}
+
+
 /**
  * drm_fb_release - remove and free the FBs on this file
  * @filp: file * from the ioctl
@@ -2478,3 +2582,72 @@ out:
         mutex_unlock(&dev->mode_config.mutex);
         return ret;
 }
+
+int drm_mode_page_flip_ioctl(struct drm_device *dev,
+                             void *data, struct drm_file *file_priv)
+{
+        struct drm_mode_crtc_page_flip *page_flip = data;
+        struct drm_mode_object *obj;
+        struct drm_crtc *crtc;
+        struct drm_framebuffer *fb;
+        struct drm_pending_vblank_event *e = NULL;
+        unsigned long flags;
+        int ret = -EINVAL;
+
+        if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
+            page_flip->reserved != 0)
+                return -EINVAL;
+
+        mutex_lock(&dev->mode_config.mutex);
+        obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
+        if (!obj)
+                goto out;
+        crtc = obj_to_crtc(obj);
+
+        if (crtc->funcs->page_flip == NULL)
+                goto out;
+
+        obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB);
+        if (!obj)
+                goto out;
+        fb = obj_to_fb(obj);
+
+        if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
+                ret = -ENOMEM;
+                spin_lock_irqsave(&dev->event_lock, flags);
+                if (file_priv->event_space < sizeof e->event) {
+                        spin_unlock_irqrestore(&dev->event_lock, flags);
+                        goto out;
+                }
+                file_priv->event_space -= sizeof e->event;
+                spin_unlock_irqrestore(&dev->event_lock, flags);
+
+                e = kzalloc(sizeof *e, GFP_KERNEL);
+                if (e == NULL) {
+                        spin_lock_irqsave(&dev->event_lock, flags);
+                        file_priv->event_space += sizeof e->event;
+                        spin_unlock_irqrestore(&dev->event_lock, flags);
+                        goto out;
+                }
+
+                e->event.base.type = DRM_EVENT_VBLANK;
+                e->event.base.length = sizeof e->event;
+                e->event.user_data = page_flip->user_data;
+                e->base.event = &e->event.base;
+                e->base.file_priv = file_priv;
+                e->base.destroy =
+                        (void (*) (struct drm_pending_event *)) kfree;
+        }
+
+        ret = crtc->funcs->page_flip(crtc, fb, e);
+        if (ret) {
+                spin_lock_irqsave(&dev->event_lock, flags);
+                file_priv->event_space += sizeof e->event;
+                spin_unlock_irqrestore(&dev->event_lock, flags);
+                kfree(e);
+        }
+
+out:
+        mutex_unlock(&dev->mode_config.mutex);
+        return ret;
+}