diff options
| -rw-r--r-- | drivers/gpu/drm/drm_fb_helper.c | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index bdfdf60e7bd8..fc709bc59b1a 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -391,14 +391,32 @@ static void drm_fb_helper_damage_blit_real(struct drm_fb_helper *fb_helper, } } +static int drm_fb_helper_damage_blit(struct drm_fb_helper *fb_helper, + struct drm_clip_rect *clip) +{ + struct drm_client_buffer *buffer = fb_helper->buffer; + struct dma_buf_map map; + int ret; + + ret = drm_client_buffer_vmap(buffer, &map); + if (ret) + return ret; + + drm_fb_helper_damage_blit_real(fb_helper, clip, &map); + + drm_client_buffer_vunmap(buffer); + + return 0; +} + static void drm_fb_helper_damage_work(struct work_struct *work) { struct drm_fb_helper *helper = container_of(work, struct drm_fb_helper, damage_work); + struct drm_device *dev = helper->dev; struct drm_clip_rect *clip = &helper->damage_clip; struct drm_clip_rect clip_copy; unsigned long flags; - struct dma_buf_map map; int ret; spin_lock_irqsave(&helper->damage_lock, flags); @@ -411,13 +429,10 @@ static void drm_fb_helper_damage_work(struct work_struct *work) if (!(clip_copy.x1 < clip_copy.x2 && clip_copy.y1 < clip_copy.y2)) return; - /* Generic fbdev uses a shadow buffer */ if (helper->buffer) { - ret = drm_client_buffer_vmap(helper->buffer, &map); - if (ret) + ret = drm_fb_helper_damage_blit(helper, &clip_copy); + if (drm_WARN_ONCE(dev, ret, "Damage blitter failed: ret=%d\n", ret)) return; - drm_fb_helper_damage_blit_real(helper, &clip_copy, &map); - drm_client_buffer_vunmap(helper->buffer); } if (helper->fb->funcs->dirty) |