The query buffers were reserved while holding the binding mutex, which
caused a circular locking dependency.

Cc: stable@vger.kernel.org
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NBrian Paul <brianp@vmware.com>

Don't use a per-master semaphore (ttm lock) for reservation protection, but
rather a per-device semaphore. This is needed since clients connecting using
render nodes aren't master aware.

The ttm lock used should probably be replaced with a reader-write semaphore
once the function down_xx_interruptible() is available.
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NBrian Paul <brianp@vmware.com>

Introduced with 3.14-rc1
Reported-by: NFengguang Wu <fengguang.wu@intel.com>
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NJakob Bornecrantz <jakob@vmware.com>

When a context is first referenced in the command stream, make sure that all
scrubbed (as a result of eviction) bindings are re-emitted. Also make sure that
all bound resources are put on the resource validate list.

This is needed for legacy emulation, since legacy user-space drivers will
typically not re-emit shader bindings. It also removes the requirement for
user-space drivers to re-emit render-target- and texture bindings.

Makes suspend and hibernate now also work with legacy user-space drivers on
guest-backed devices.

v2: Don't rebind on legacy devices.
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NJakob Bornecrantz <jakob@vmware.com>

Reported-by: NFengguang Wu <fengguang.wu@intel.com>
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NJakob Bornecrant <jakob@vmware.com>

Only scrub context bindings when a bound resource is destroyed, or when
the MOB backing the context is unbound.
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NZack Rusin <zackr@vmware.com>

The device is no longer capable of scrubbing context bindings of resources
that are bound when destroyed.
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NJakob Bornecrantz <jakob@vmware.com>

Contexts are managed by the kernel only, so disable access to GB
context commands from user-space
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NBrian Paul <brianp@vmware.com>
Reviewed-by: NZack Ruzin <zackr@vmware.com>

Add a resource-private header for common resource definitions
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NBrian Paul <brianp@vmware.com>
Reviewed-by: NDmitry Torokhov <dtor@vmware.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>