drm/ast: Wrap cursor framebuffer access in drm_gem_fb_begin/end_cpu_access()

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Call drm_gem_fb_begin_cpu_access() and drm_gem_fb_end_cpu_access()
around cursor image updates. Imported buffers might have to be
synchronized for CPU access before they can be used.

Ignore errors from drm_gem_fb_begin_cpu_access(). These errors can
often be transitory. The cursor image will be updated on the next
frame. Meanwhile display a white square where the cursor would be.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>>
Link: https://patch.msgid.link/20251126094626.41985-4-tzimmermann@suse.de

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This commit is contained in:

Thomas Zimmermann 2025-11-26 10:40:10 +01:00

parent ef4ed8621a

commit 4dfb97060f

1 changed files with 43 additions and 31 deletions

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drivers/gpu/drm/ast/ast_cursor.c

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