tree d946756ccdca539c8ca707f02b2a47a3e589c649
parent 1c248b7d2960faec3e1b8f3f9c5d9d0df28e0a3c
author Thomas Hellstrom <thellstrom@vmware.com> 1317993786 +0200
committer Dave Airlie <airlied@redhat.com> 1318233704 +0100

vmwgfx: Implement memory accounting for resources

Contexts, surfaces and streams allocate persistent kernel memory as the
direct result of user-space requests. Make sure this memory is
accounted as graphics memory, to avoid DOS vulnerabilities.

Also take the TTM read lock around resource creation to block
switched-out dri clients from allocating resources.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>