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| author | Carlos Eduardo Gallo Filho <gcarlos@disroot.org> | 2023-09-26 17:15:18 +0300 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2023-10-12 10:51:19 +0300 |
| commit | f2f455981a34ce8ca88a41458c09494b387d344f (patch) | |
| tree | c1ebcccfa2da094958fd9574f51c495a4740250a /drivers/gpu/drm/drm_framebuffer.c | |
| parent | 052ddf7b86d2d9443bce77ef5b5b1ef61a3b79fc (diff) | |
| download | linux-f2f455981a34ce8ca88a41458c09494b387d344f.tar.xz | |
drm: Remove plane hsub/vsub alignment requirement for core helpers
The drm_format_info_plane_{height,width} functions was implemented using
regular division for the plane size calculation, which cause issues [1][2]
when used on contexts where the dimensions are misaligned with relation
to the subsampling factors. So, replace the regular division by the
DIV_ROUND_UP macro.
This allows these functions to be used in more drivers, making further
work to bring more core presence on them possible.
[1] http://patchwork.freedesktop.org/patch/msgid/20170321181218.10042-3-ville.syrjala@linux.intel.com
[2] https://patchwork.freedesktop.org/patch/msgid/20211026225105.2783797-2-imre.deak@intel.com
Signed-off-by: Carlos Eduardo Gallo Filho <gcarlos@disroot.org>
Reviewed-by: André Almeida <andrealmeid@igalia.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230926141519.9315-2-gcarlos@disroot.org
Diffstat (limited to 'drivers/gpu/drm/drm_framebuffer.c')
0 files changed, 0 insertions, 0 deletions