diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2022-05-04 09:27:10 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-05-05 16:50:08 -0400 |
| commit | 26817fb7b066b21c66cd41d75ed2137e046045be (patch) | |
| tree | 4e2a26c739021372e0aa81494939ccf61a132c6e /drivers/video/fbdev/core/fbmem.c | |
| parent | 5a90c24ad0283434f60ed2e1a628c9e6134d1fdc (diff) | |
Revert "fbdev: fbmem: add a helper to determine if an aperture is used by a fw fb"
This reverts commit 9a45ac2320d0a6ae01880a30d4b86025fce4061b.
This was added a helper for amdgpu to workaround a runtime pm regression
caused by a runtime pm fix in efifb. We now have a better workaround
in amdgpu in
commit f95af4a9236695 ("drm/amdgpu: don't runtime suspend if there are displays attached (v3)")
so this workaround is no longer necessary. Since amdgpu was the only
user of this interface, we can remove it.
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/video/fbdev/core/fbmem.c')
| -rw-r--r-- | drivers/video/fbdev/core/fbmem.c | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index ad9aac06427a..700ac4a83329 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -1784,53 +1784,6 @@ int remove_conflicting_framebuffers(struct apertures_struct *a, EXPORT_SYMBOL(remove_conflicting_framebuffers); /** - * is_firmware_framebuffer - detect if firmware-configured framebuffer matches - * @a: memory range, users of which are to be checked - * - * This function checks framebuffer devices (initialized by firmware/bootloader) - * which use memory range described by @a. If @a matchesm the function returns - * true, otherwise false. - */ -bool is_firmware_framebuffer(struct apertures_struct *a) -{ - bool do_free = false; - bool found = false; - int i; - - if (!a) { - a = alloc_apertures(1); - if (!a) - return false; - - a->ranges[0].base = 0; - a->ranges[0].size = ~0; - do_free = true; - } - - mutex_lock(®istration_lock); - /* check all firmware fbs and kick off if the base addr overlaps */ - for_each_registered_fb(i) { - struct apertures_struct *gen_aper; - - if (!(registered_fb[i]->flags & FBINFO_MISC_FIRMWARE)) - continue; - - gen_aper = registered_fb[i]->apertures; - if (fb_do_apertures_overlap(gen_aper, a)) { - found = true; - break; - } - } - mutex_unlock(®istration_lock); - - if (do_free) - kfree(a); - - return found; -} -EXPORT_SYMBOL(is_firmware_framebuffer); - -/** * remove_conflicting_pci_framebuffers - remove firmware-configured framebuffers for PCI devices * @pdev: PCI device * @name: requesting driver name |