drm/ast: Support cursor buffers objects in I/O memory

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Copy the ARGB4444 cursor buffer to system memory if it is located in
I/O memory. While this cannot happen with ast's native GEM objects, an
imported buffer object might be on the external device's I/O memory.

If the cursor buffer is located in system memory continue to use it
directly.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>>
Link: https://patch.msgid.link/20251126094626.41985-3-tzimmermann@suse.de

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Thomas Zimmermann 2025-11-26 10:40:09 +01:00

parent 1e759ed22a

commit ef4ed8621a

1 changed files with 14 additions and 1 deletions

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15

drivers/gpu/drm/ast/ast_cursor.c

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