1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include <pipe/p_thread.h>
29 #include "nouveau_context.h"
30 #include "nouveau_screen.h"
32 pipe_static_mutex(lockMutex
);
34 /* Lock the hardware and validate our state.
37 LOCK_HARDWARE(struct nouveau_context
*nv
)
39 struct nouveau_screen
*nv_screen
= nv
->nv_screen
;
40 struct nouveau_device
*dev
= nv_screen
->device
;
41 struct nouveau_device_priv
*nvdev
= nouveau_device(dev
);
45 pipe_mutex_lock(lockMutex
);
47 DRM_CAS(nvdev
->lock
, nvdev
->ctx
,
48 (DRM_LOCK_HELD
| nvdev
->ctx
), __ret
);
51 drmGetLock(nvdev
->fd
, nvdev
->ctx
, 0);
52 nouveau_contended_lock(nv
);
57 /* Unlock the hardware using the global current context
60 UNLOCK_HARDWARE(struct nouveau_context
*nv
)
62 struct nouveau_screen
*nv_screen
= nv
->nv_screen
;
63 struct nouveau_device
*dev
= nv_screen
->device
;
64 struct nouveau_device_priv
*nvdev
= nouveau_device(dev
);
69 DRM_UNLOCK(nvdev
->fd
, nvdev
->lock
, nvdev
->ctx
);
71 pipe_mutex_unlock(lockMutex
);