diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2021-12-22 22:41:18 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-11 15:35:16 +0100 |
| commit | fa3d8456f7cd7d20acaa2223241c4e171dc8b740 (patch) | |
| tree | fed17261672fb62e0bc0973ef8dd4876103c2c68 /include | |
| parent | 9ca97a693aa8b86e8424f0047198ea3ab997d50f (diff) | |
fbdev: fbmem: add a helper to determine if an aperture is used by a fw fb
commit 9a45ac2320d0a6ae01880a30d4b86025fce4061b upstream.
Add a function for drivers to check if the a firmware initialized
fb is corresponds to their aperture. This allows drivers to check if the
device corresponds to what the firmware set up as the display device.
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=215203
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1840
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/fb.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/fb.h b/include/linux/fb.h index 5950f8f5dc74..02f362c661c8 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -610,6 +610,7 @@ extern int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, const char *name); extern int remove_conflicting_framebuffers(struct apertures_struct *a, const char *name, bool primary); +extern bool is_firmware_framebuffer(struct apertures_struct *a); extern int fb_prepare_logo(struct fb_info *fb_info, int rotate); extern int fb_show_logo(struct fb_info *fb_info, int rotate); extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size); |