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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2022-12-02 13:56:41 +0100 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2022-12-05 13:36:33 +0100 |
| commit | b5f636e63b807fdeba5d61260e5f6b24f6834f69 (patch) | |
| tree | d3f71b506e0b09c78a36e3f975337880d37b3ec6 /drivers/gpu/drm/panel | |
| parent | 63aa5ec6cf2f332ec4ef08a03f4f39895f82b2b9 (diff) | |
| download | linux-stable-b5f636e63b807fdeba5d61260e5f6b24f6834f69.tar.gz linux-stable-b5f636e63b807fdeba5d61260e5f6b24f6834f69.tar.bz2 linux-stable-b5f636e63b807fdeba5d61260e5f6b24f6834f69.zip | |
drm/mipi-dbi: Prepare framebuffer copy operation in pipe-update helpers
Move the vmap/vunmap blocks from the inner fb_dirty helpers into the
MIPI DBI update helpers. The function calls can result in waiting and/or
processing overhead. Reduce the penalties by executing the functions once
in the outer-most function of the pipe update.
This change also prepares for MIPI DBI for shadow-plane helpers. With
shadow-plane helpers, transfer source buffers are mapped into kernel
address space automatically.
v2:
* keep each driver's existing buffer-mapping patter (Noralf)
* zero-initialize iosys_map arrays (Noralf)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Tested-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Noralf Trønnes <noralf@tronnes.org> # drm/tiny/mi0283qt
Link: https://patchwork.freedesktop.org/patch/msgid/20221202125644.7917-6-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/panel')
0 files changed, 0 insertions, 0 deletions