1/* savage_sarea.h -- Public header for the savage driver (SAREA)
2 *
3 * Copyright 2004  Felix Kuehling
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sub license,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
15 * of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
20 * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 * DEALINGS IN THE SOFTWARE.
24 */
25
26#ifndef SAVAGE_SAREA_H
27#define SAVAGE_SAREA_H
28
29#ifndef SAVAGE_SAREA_DEFINES
30#define SAVAGE_SAREA_DEFINES
31
32/* 2 heaps (1 for card, 1 for agp), each divided into up to 128
33 * regions, subject to a minimum region size of (1<<16) == 64k.
34 *
35 * Clients may subdivide regions internally, but when sharing between
36 * clients, the region size is the minimum granularity.
37 */
38
39#define SAVAGE_CARD_HEAP		0
40#define SAVAGE_AGP_HEAP			1
41#define SAVAGE_NR_TEX_HEAPS		2
42#define SAVAGE_NR_TEX_REGIONS		16
43#define SAVAGE_LOG_MIN_TEX_REGION_SIZE	16
44
45#endif /* SAVAGE_SAREA_DEFINES */
46
47typedef struct {
48	/* LRU lists for texture memory in agp space and on the card.
49	 */
50	drm_tex_region_t texList[SAVAGE_NR_TEX_HEAPS][SAVAGE_NR_TEX_REGIONS+1];
51	unsigned int texAge[SAVAGE_NR_TEX_HEAPS];
52
53	/* Mechanism to validate card state.
54	 */
55	int ctxOwner;
56}  SAVAGESAREAPrivRec, *SAVAGESAREAPrivPtr;
57
58#endif /* SAVAGE_SAREA_H */
59