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
66
67
68
69
|
/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2025 SiFive Inc.
*/
#ifndef __CACHE_H__
#define __CACHE_H__
#include <sbi/sbi_list.h>
#include <sbi/sbi_types.h>
#define CACHE_NAME_LEN 32
struct cache_device;
struct cache_ops {
/** Warm init **/
int (*warm_init)(struct cache_device *dev);
/** Flush entire cache **/
int (*cache_flush_all)(struct cache_device *dev);
};
struct cache_device {
/** Name of the device **/
char name[CACHE_NAME_LEN];
/** List node for search **/
struct sbi_dlist node;
/** Point to the next level cache **/
struct cache_device *next;
/** Cache Management Operations **/
struct cache_ops *ops;
/** CPU private cache **/
bool cpu_private;
/** The unique id of this cache device **/
u32 id;
};
/**
* Find a registered cache device
*
* @param id unique ID of the cache device
*
* @return the cache device or NULL
*/
struct cache_device *cache_find(u32 id);
/**
* Register a cache device
*
* cache_device->id must be initialized already and must not change during the life
* of the cache_device object.
*
* @param dev the cache device to register
*
* @return 0 on success, or a negative error code on failure
*/
int cache_add(struct cache_device *dev);
/**
* Flush the entire cache
*
* @param dev the cache to flush
*
* @return 0 on success, or a negative error code on failure
*/
int cache_flush_all(struct cache_device *dev);
#endif
|
