diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2020-11-20 13:25:42 +0300 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2020-11-24 11:29:09 +0300 |
| commit | 1d46491d4a08d7ee657e09808f87d169444a2652 (patch) | |
| tree | 128d7047e8771fb355e28e087209b8f8abfc669e /drivers/gpu/drm/drm_fb_helper.c | |
| parent | fd2d856538bb3880ec78eae71bbbd928962bee35 (diff) | |
| download | linux-1d46491d4a08d7ee657e09808f87d169444a2652.tar.xz | |
drm/fb-helper: Move damage blit code and its setup into separate routine
Introduce a separate function for the blit code and its vmap setup. Done
in preparation of additional changes. No functional changes are made.
v3:
* Use drm_WARN_ONCE() with an error message to print warning
v2:
* print a single warning if damage blitter fails
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20201120102545.4047-8-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/drm_fb_helper.c')
| -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) |