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| author |   Thomas Zimmermann <tzimmermann@suse.de> | 2022-02-01 12:53:05 +0100 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2022-02-02 09:54:16 +0100 |
| commit | cd9f7f7ac5932129fe81b4c7559cfcb226ec7c5c (patch) | |
| tree | 89ba7ef09c2a3309c4a5b906c6aa6c459d59e409 /drivers/gpu/drm/drm_gem.c | |
| parent | Revert "drm/panel-edp: Allow querying the detected panel via sysfs" (diff) | |
| download | linux-rng-cd9f7f7ac5932129fe81b4c7559cfcb226ec7c5c.tar.xz linux-rng-cd9f7f7ac5932129fe81b4c7559cfcb226ec7c5c.zip | |
drm/fb-helper: Mark screen buffers in system memory with FBINFO_VIRTFB
Mark screen buffers in system memory with FBINFO_VIRTFB. Otherwise, fbdev
deferred I/O marks mmap'ed areas of system memory with VM_IO. (There's an
inverse relationship between the two flags.)
For shadow buffers, also set the FBINFO_READS_FAST hint.
v3:
* change FB_ to FBINFO_ in commit description
v2:
* updated commit description (Daniel)
* added Fixes tag
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: d536540f304c ("drm/fb-helper: Add generic fbdev emulation .fb_probe function")
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v4.19+
Link: https://patchwork.freedesktop.org/patch/msgid/20220201115305.9333-1-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/drm_gem.c')
0 files changed, 0 insertions, 0 deletions