drm/qxl: implement prime kmap/kunmap

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Generic fbdev emulation needs this.  Also: We must keep track of the
number of mappings now, so we don't unmap early in case two users want a
kmap of the same bo.  Add a sanity check to destroy callback to make
sure kmap/kunmap is balanced.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20190118122020.27596-17-kraxel@redhat.com

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This commit is contained in:

Gerd Hoffmann 2019-01-18 13:20:13 +01:00

parent 21c76bd19e

commit 9b369116fd

3 changed files with 20 additions and 4 deletions

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1

drivers/gpu/drm/qxl/qxl_drv.h

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6

drivers/gpu/drm/qxl/qxl_object.c

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17

drivers/gpu/drm/qxl/qxl_prime.c

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