mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
synced 2026-10-22 19:14:51 +00:00
c585c1b29a
Use DRM's shadow-plane helper to map and access the GEM object's buffer within kernel address space. Encapsulates the vmap logic in the GEM-DMA helpers. The repaper driver currently reads the vaddr field from the GME buffer object directly. This only works because GEM code 'automagically' sets vaddr. Shadow-plane helpers perform the same steps, but with correct abstraction behind drm_gem_vmap(). The shadow-plane state provides the buffer address in kernel address space and the format-conversion state. v2: - fix typo in commit description Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://lore.kernel.org/r/20250627152422.8399-1-tzimmermann@suse.de
1152 lines
28 KiB
1152 lines
28 KiB