blob: 93ac5e4451370b3f1ff90642764c5101fea229ee (
plain) (
blame)
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
62
63
64
65
|
/*
* Support for Medifield PNW Camera Imaging ISP subsystem.
*
* Copyright (c) 2010 Intel Corporation. All Rights Reserved.
*
* Copyright (c) 2010 Silicon Hive www.siliconhive.com.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*
*/
#ifndef __HMM_VM_H__
#define __HMM_VM_H__
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/mutex.h>
#include <linux/list.h>
struct hmm_vm {
unsigned int start;
unsigned int pgnr;
unsigned int size;
struct list_head vm_node_list;
spinlock_t lock;
struct kmem_cache *cache;
};
struct hmm_vm_node {
struct list_head list;
unsigned int start;
unsigned int pgnr;
unsigned int size;
struct hmm_vm *vm;
};
#define ISP_VM_START 0x0
#define ISP_VM_SIZE (0x7FFFFFFF) /* 2G address space */
#define ISP_PTR_NULL NULL
int hmm_vm_init(struct hmm_vm *vm, unsigned int start,
unsigned int size);
void hmm_vm_clean(struct hmm_vm *vm);
struct hmm_vm_node *hmm_vm_alloc_node(struct hmm_vm *vm,
unsigned int pgnr);
void hmm_vm_free_node(struct hmm_vm_node *node);
struct hmm_vm_node *hmm_vm_find_node_start(struct hmm_vm *vm,
unsigned int addr);
struct hmm_vm_node *hmm_vm_find_node_in_range(struct hmm_vm *vm,
unsigned int addr);
#endif
|
