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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2022-02-09 17:16:15 +0100 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2022-02-10 14:49:11 +0100 |
| commit | 67b723f5b74254d27962b1b59bddfee1584575ff (patch) | |
| tree | 094717adc1ae458e37201718379dc3de01769eed /drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | |
| parent | aa15c677cc34e626789cb65b8e7375180851c03b (diff) | |
| download | linux-67b723f5b74254d27962b1b59bddfee1584575ff.tar.gz linux-67b723f5b74254d27962b1b59bddfee1584575ff.tar.bz2 linux-67b723f5b74254d27962b1b59bddfee1584575ff.zip | |
drm/fb-helper: Calculate damaged area in separate helper
Add drm_fb_helper_memory_range_to_clip(), a helper function that
accepts an linear range of video memory and converts it into a
rectangle. The computed rectangle describes the damaged area in
terms of scanlines and pixels per scanline.
While at it, make the code more readable by using struct drm_rect
and related helpers.
The code was previously part of the deferred I/O helpers, but is
also useful for damage handling of regular write operations. Update
the deferred I/O code to use the new function.
v2:
* rename helper (Javier)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220209161617.3553-4-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c')
0 files changed, 0 insertions, 0 deletions