Merge branch 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/linville...
[pandora-kernel.git] / arch / arm / plat-omap / include / plat / vram.h
1 /*
2  * VRAM manager for OMAP
3  *
4  * Copyright (C) 2009 Nokia Corporation
5  * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License version 2 as
9  * published by the Free Software Foundation.
10  *
11  * This program is distributed in the hope that it will be useful, but
12  * WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License along
17  * with this program; if not, write to the Free Software Foundation, Inc.,
18  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19  */
20
21 #ifndef __OMAP_VRAM_H__
22 #define __OMAP_VRAM_H__
23
24 #include <linux/types.h>
25
26 #define OMAP_VRAM_MEMTYPE_SDRAM         0
27 #define OMAP_VRAM_MEMTYPE_SRAM          1
28 #define OMAP_VRAM_MEMTYPE_MAX           1
29
30 extern int omap_vram_add_region(unsigned long paddr, size_t size);
31 extern int omap_vram_free(unsigned long paddr, size_t size);
32 extern int omap_vram_alloc(int mtype, size_t size, unsigned long *paddr);
33 extern int omap_vram_reserve(unsigned long paddr, size_t size);
34 extern void omap_vram_get_info(unsigned long *vram, unsigned long *free_vram,
35                 unsigned long *largest_free_block);
36
37 #ifdef CONFIG_OMAP2_VRAM
38 extern void omap_vram_set_sdram_vram(u32 size, u32 start);
39 extern void omap_vram_set_sram_vram(u32 size, u32 start);
40
41 extern void omap_vram_reserve_sdram(void);
42 extern unsigned long omap_vram_reserve_sram(unsigned long sram_pstart,
43                                             unsigned long sram_vstart,
44                                             unsigned long sram_size,
45                                             unsigned long pstart_avail,
46                                             unsigned long size_avail);
47 #else
48 static inline void omap_vram_set_sdram_vram(u32 size, u32 start) { }
49 static inline void omap_vram_set_sram_vram(u32 size, u32 start) { }
50
51 static inline void omap_vram_reserve_sdram(void) { }
52 static inline unsigned long omap_vram_reserve_sram(unsigned long sram_pstart,
53                                             unsigned long sram_vstart,
54                                             unsigned long sram_size,
55                                             unsigned long pstart_avail,
56                                             unsigned long size_avail)
57 {
58         return 0;
59 }
60 #endif
61
62 #endif