blob: 98a492ac2bfae0e96214e37c25dc0c9a8abde938 (
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
62
63
64
65
66
67
68
|
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 1994 Waldorf GMBH
* Copyright (C) 1995, 1996, 1997, 1998, 1999, 2001, 2002, 2003 Ralf Baechle
* Copyright (C) 1996 Paul M. Antoine
* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
* Copyright (C) 2004 Maciej W. Rozycki
*/
#ifndef __ASM_CPU_INFO_H
#define __ASM_CPU_INFO_H
#include <linux/types.h>
/*
* Descriptor for a cache
*/
struct cache_desc {
unsigned int waysize; /* Bytes per way */
unsigned short sets; /* Number of lines per set */
unsigned char ways; /* Number of ways */
unsigned char linesz; /* Size of line in bytes */
unsigned char waybit; /* Bits to select in a cache set */
unsigned char flags; /* Flags describing cache properties */
};
/*
* Flag definitions
*/
#define MIPS_CACHE_NOT_PRESENT 0x00000001
#define MIPS_CACHE_VTAG 0x00000002 /* Virtually tagged cache */
#define MIPS_CACHE_ALIASES 0x00000004 /* Cache could have aliases */
#define MIPS_CACHE_IC_F_DC 0x00000008 /* Ic can refill from D-cache */
#define MIPS_IC_SNOOPS_REMOTE 0x00000010 /* Ic snoops remote stores */
#define MIPS_CACHE_PINDEX 0x00000020 /* Physically indexed cache */
struct cpuinfo_mips {
unsigned int udelay_val;
unsigned int asid_cache;
/*
* Capability and feature descriptor structure for MIPS CPU
*/
unsigned long options;
unsigned long ases;
unsigned int processor_id;
unsigned int fpu_id;
unsigned int cputype;
int isa_level;
int tlbsize;
struct cache_desc icache; /* Primary I-cache */
struct cache_desc dcache; /* Primary D or combined I/D cache */
struct cache_desc scache; /* Secondary cache */
struct cache_desc tcache; /* Tertiary/split secondary cache */
int srsets; /* Shadow register sets */
int core; /* physical core number */
#ifdef CONFIG_64BIT
int vmbits; /* Virtual memory size in bits */
#endif
};
extern struct cpuinfo_mips cpu_data[];
#define current_cpu_data cpu_data[0]
extern void cpu_probe(void);
extern const char *__cpu_name;
#endif /* __ASM_CPU_INFO_H */
|
