diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2023-03-20 18:07:47 +0300 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2023-03-22 15:32:50 +0300 |
| commit | 24dc4f4c2a5cc97e340f440bb01f5f30fb4704f8 (patch) | |
| tree | 5370ea5a1c7ae50c4c3204f2da82402a464f27a0 /drivers/gpu/drm/drm_fb_helper.c | |
| parent | 6a4fef21816be4bc818905e07d47e0c20738e164 (diff) | |
| download | linux-24dc4f4c2a5cc97e340f440bb01f5f30fb4704f8.tar.xz | |
drm/fb-helper: Support smem_len in deferred I/O
The size of the framebuffer can either be stored in screen_info or
smem_len. Take both into account in the deferred I/O code.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Sui Jingfeng <suijingfeng@loongson.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20230320150751.20399-5-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/drm_fb_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_fb_helper.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 7e96ed9efdb5..bb0b25209b3e 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -672,7 +672,7 @@ static void drm_fb_helper_memory_range_to_clip(struct fb_info *info, off_t off, void drm_fb_helper_deferred_io(struct fb_info *info, struct list_head *pagereflist) { struct drm_fb_helper *helper = info->par; - unsigned long start, end, min_off, max_off; + unsigned long start, end, min_off, max_off, total_size; struct fb_deferred_io_pageref *pageref; struct drm_rect damage_area; @@ -690,7 +690,11 @@ void drm_fb_helper_deferred_io(struct fb_info *info, struct list_head *pagerefli * of the screen and account for non-existing scanlines. Hence, * keep the covered memory area within the screen buffer. */ - max_off = min(max_off, info->screen_size); + if (info->screen_size) + total_size = info->screen_size; + else + total_size = info->fix.smem_len; + max_off = min(max_off, total_size); if (min_off < max_off) { drm_fb_helper_memory_range_to_clip(info, min_off, max_off - min_off, &damage_area); |