drm/vmwgfx: Unpin the screen object backup buffer when not used

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We were relying on the pinned screen object backup buffer to be destroyed
when not used. But if we hold a copy of the atomic state, like when
hibernating, the backup buffer might not be destroyed since it's
refcounted by the atomic state. This causes us to hibernate with a
buffer pinned in VRAM.

Fix this by only having the buffer pinned when it is actually used by a
screen object.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>

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Thomas Hellstrom 2018-03-22 10:35:18 +01:00

parent 89dc15b76f

commit 20fb5a635a

1 changed files with 21 additions and 8 deletions

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drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c

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