diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2026-06-18 11:41:57 +0300 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2026-06-22 12:03:21 +0300 |
| commit | 134844856c399bfa9462a159dcf860bfdb748055 (patch) | |
| tree | b1b9fd30d77b2a6339133b1a50964d736007bbd9 | |
| parent | faaa1e1155833e7d4ce7e3cfaf64c0d636b190db (diff) | |
| download | linux-134844856c399bfa9462a159dcf860bfdb748055.tar.xz | |
drm/sysfb: Do not page-align visible size of the framebuffer
Only return the actually visible size of the system framebuffer in
drm_sysfb_get_visible_size_si(). Drivers use this size value for
reserving access to framebuffer memory. Increasing the value can
make later attempts to do so fail.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 32ae90c66fb6 ("drm/sysfb: Add efidrm for EFI displays")
Fixes: a84eb6abe2b6 ("drm/sysfb: Add vesadrm for VESA displays")
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v6.16+
Link: https://patch.msgid.link/20260618084327.46567-2-tzimmermann@suse.de
| -rw-r--r-- | drivers/gpu/drm/sysfb/drm_sysfb_screen_info.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/sysfb/drm_sysfb_screen_info.c b/drivers/gpu/drm/sysfb/drm_sysfb_screen_info.c index 749290196c6a..361b7233600c 100644 --- a/drivers/gpu/drm/sysfb/drm_sysfb_screen_info.c +++ b/drivers/gpu/drm/sysfb/drm_sysfb_screen_info.c @@ -67,7 +67,7 @@ EXPORT_SYMBOL(drm_sysfb_get_stride_si); u64 drm_sysfb_get_visible_size_si(struct drm_device *dev, const struct screen_info *si, unsigned int height, unsigned int stride, u64 size) { - u64 vsize = PAGE_ALIGN(height * stride); + u64 vsize = height * stride; return drm_sysfb_get_validated_size0(dev, "visible size", vsize, size); } |