Subversion Repositories Kolibri OS

/**************************************************************************

 *

 * Copyright (c) 2006-2009 VMware, Inc., Palo Alto, CA., USA

 * All Rights Reserved.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the

 * "Software"), to deal in the Software without restriction, including

 * without limitation the rights to use, copy, modify, merge, publish,

 * distribute, sub license, and/or sell copies of the Software, and to

 * permit persons to whom the Software is furnished to do so, subject to

 * the following conditions:

 *

 * The above copyright notice and this permission notice (including the

 * next paragraph) shall be included in all copies or substantial portions

 * of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL

 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,

 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR

 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE

 * USE OR OTHER DEALINGS IN THE SOFTWARE.

 *

 **************************************************************************/

/*

 * Authors: Thomas Hellstrom 

 */

#ifndef _TTM_PLACEMENT_H_

#define _TTM_PLACEMENT_H_

/*

 * Memory regions for data placement.

 */

#define TTM_PL_SYSTEM           0

#define TTM_PL_TT               1

#define TTM_PL_VRAM             2

#define TTM_PL_PRIV0            3

#define TTM_PL_PRIV1            4

#define TTM_PL_PRIV2            5

#define TTM_PL_PRIV3            6

#define TTM_PL_PRIV4            7

#define TTM_PL_PRIV5            8

#define TTM_PL_SWAPPED          15

#define TTM_PL_FLAG_SYSTEM      (1 << TTM_PL_SYSTEM)

#define TTM_PL_FLAG_TT          (1 << TTM_PL_TT)

#define TTM_PL_FLAG_VRAM        (1 << TTM_PL_VRAM)

#define TTM_PL_FLAG_PRIV0       (1 << TTM_PL_PRIV0)

#define TTM_PL_FLAG_PRIV1       (1 << TTM_PL_PRIV1)

#define TTM_PL_FLAG_PRIV2       (1 << TTM_PL_PRIV2)

#define TTM_PL_FLAG_PRIV3       (1 << TTM_PL_PRIV3)

#define TTM_PL_FLAG_PRIV4       (1 << TTM_PL_PRIV4)

#define TTM_PL_FLAG_PRIV5       (1 << TTM_PL_PRIV5)

#define TTM_PL_FLAG_SWAPPED     (1 << TTM_PL_SWAPPED)

#define TTM_PL_MASK_MEM         0x0000FFFF

/*

 * Other flags that affects data placement.

 * TTM_PL_FLAG_CACHED indicates cache-coherent mappings

 * if available.

 * TTM_PL_FLAG_SHARED means that another application may

 * reference the buffer.

 * TTM_PL_FLAG_NO_EVICT means that the buffer may never

 * be evicted to make room for other buffers.

 */

#define TTM_PL_FLAG_CACHED      (1 << 16)

#define TTM_PL_FLAG_UNCACHED    (1 << 17)

#define TTM_PL_FLAG_WC          (1 << 18)

#define TTM_PL_FLAG_SHARED      (1 << 20)

#define TTM_PL_FLAG_NO_EVICT    (1 << 21)

#define TTM_PL_MASK_CACHING     (TTM_PL_FLAG_CACHED | \

				 TTM_PL_FLAG_UNCACHED | \

				 TTM_PL_FLAG_WC)

#define TTM_PL_MASK_MEMTYPE     (TTM_PL_MASK_MEM | TTM_PL_MASK_CACHING)

/*

 * Access flags to be used for CPU- and GPU- mappings.

 * The idea is that the TTM synchronization mechanism will

 * allow concurrent READ access and exclusive write access.

 * Currently GPU- and CPU accesses are exclusive.

 */

#define TTM_ACCESS_READ         (1 << 0)

#define TTM_ACCESS_WRITE        (1 << 1)

#endif