blob: 792105196fa758d0c00177058d253bff78238782 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
/*
* Copyright (C) ST-Ericsson SA 2010
*
* Cache handler
*
* Author: Johan Mossberg <johan.xx.mossberg@stericsson.com>
* for ST-Ericsson.
*
* License terms: GNU General Public License (GPL), version 2.
*/
/*
* Cache handler can not handle simultaneous execution! The caller has to
* ensure such a situation does not occur.
*/
#ifndef _CACHE_HANDLER_H_
#define _CACHE_HANDLER_H_
#include <linux/types.h>
#include <linux/hwmem.h>
/*
* To not have to double all datatypes we've used hwmem datatypes. If someone
* want's to use cache handler but not hwmem then we'll have to define our own
* datatypes.
*/
struct cach_range {
u32 start; /* Inclusive */
u32 end; /* Exclusive */
};
/*
* Internal, do not touch!
*/
struct cach_buf {
void *vstart;
u32 pstart;
u32 size;
/* Remaining hints are active */
enum hwmem_alloc_flags cache_settings;
bool in_cpu_write_buf;
struct cach_range range_in_cpu_cache;
struct cach_range range_dirty_in_cpu_cache;
struct cach_range range_invalid_in_cpu_cache;
};
void cach_init_buf(struct cach_buf *buf,
enum hwmem_alloc_flags cache_settings, u32 size);
void cach_set_buf_addrs(struct cach_buf *buf, void* vaddr, u32 paddr);
void cach_set_pgprot_cache_options(struct cach_buf *buf, pgprot_t *pgprot);
void cach_set_domain(struct cach_buf *buf, enum hwmem_access access,
enum hwmem_domain domain, struct hwmem_region *region);
#endif /* _CACHE_HANDLER_H_ */
|
