drm/ttm, drm/vmwgfx: Relax permission checking when opening surfaces

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commit fe25deb773 upstream.

Previously, when a surface was opened using a legacy (non prime) handle,
it was verified to have been created by a client in the same master realm.
Relax this so that opening is also allowed recursively if the client
already has the surface open.

This works around a regression in svga mesa where opening of a shared
surface is used recursively to obtain surface information.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Thomas Hellstrom 2017-03-27 11:21:25 +02:00 • committed by Greg Kroah-Hartman

parent cc4856f614

commit f2815ee3e6

5 changed files with 24 additions and 23 deletions

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10

drivers/gpu/drm/ttm/ttm_object.c

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6

drivers/gpu/drm/vmwgfx/vmwgfx_fence.c

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4

drivers/gpu/drm/vmwgfx/vmwgfx_resource.c

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22

drivers/gpu/drm/vmwgfx/vmwgfx_surface.c

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5

include/drm/ttm/ttm_object.h

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