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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * cpu.h: Values of the PRId register used to match up
3 * various MIPS cpu types.
4 *
5 * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
Ralf Baechle41943182005-05-05 16:45:59 +00006 * Copyright (C) 2004 Maciej W. Rozycki
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 */
8#ifndef _ASM_CPU_H
9#define _ASM_CPU_H
10
11/* Assigned Company values for bits 23:16 of the PRId Register
12 (CP0 register 15, select 0). As of the MIPS32 and MIPS64 specs from
13 MTI, the PRId register is defined in this (backwards compatible)
14 way:
15
16 +----------------+----------------+----------------+----------------+
17 | Company Options| Company ID | Processor ID | Revision |
18 +----------------+----------------+----------------+----------------+
19 31 24 23 16 15 8 7
20
21 I don't have docs for all the previous processors, but my impression is
22 that bits 16-23 have been 0 for all MIPS processors before the MIPS32/64
23 spec.
24*/
25
Ralf Baechle55a6feb2005-02-07 21:52:35 +000026#define PRID_COMP_LEGACY 0x000000
27#define PRID_COMP_MIPS 0x010000
28#define PRID_COMP_BROADCOM 0x020000
29#define PRID_COMP_ALCHEMY 0x030000
30#define PRID_COMP_SIBYTE 0x040000
31#define PRID_COMP_SANDCRAFT 0x050000
Daniel Lairda92b0582008-03-06 09:07:18 +000032#define PRID_COMP_NXP 0x060000
Ralf Baechle55a6feb2005-02-07 21:52:35 +000033#define PRID_COMP_TOSHIBA 0x070000
34#define PRID_COMP_LSI 0x080000
35#define PRID_COMP_LEXRA 0x0b0000
36
Linus Torvalds1da177e2005-04-16 15:20:36 -070037
38/*
39 * Assigned values for the product ID register. In order to detect a
40 * certain CPU type exactly eventually additional registers may need to
41 * be examined. These are valid when 23:16 == PRID_COMP_LEGACY
42 */
43#define PRID_IMP_R2000 0x0100
44#define PRID_IMP_AU1_REV1 0x0100
45#define PRID_IMP_AU1_REV2 0x0200
46#define PRID_IMP_R3000 0x0200 /* Same as R2000A */
47#define PRID_IMP_R6000 0x0300 /* Same as R3000A */
48#define PRID_IMP_R4000 0x0400
49#define PRID_IMP_R6000A 0x0600
50#define PRID_IMP_R10000 0x0900
51#define PRID_IMP_R4300 0x0b00
52#define PRID_IMP_VR41XX 0x0c00
53#define PRID_IMP_R12000 0x0e00
Kumba44d921b2006-05-16 22:23:59 -040054#define PRID_IMP_R14000 0x0f00
Linus Torvalds1da177e2005-04-16 15:20:36 -070055#define PRID_IMP_R8000 0x1000
Pete Popovbdf21b12005-07-14 17:47:57 +000056#define PRID_IMP_PR4450 0x1200
Linus Torvalds1da177e2005-04-16 15:20:36 -070057#define PRID_IMP_R4600 0x2000
58#define PRID_IMP_R4700 0x2100
59#define PRID_IMP_TX39 0x2200
60#define PRID_IMP_R4640 0x2200
61#define PRID_IMP_R4650 0x2200 /* Same as R4640 */
62#define PRID_IMP_R5000 0x2300
63#define PRID_IMP_TX49 0x2d00
64#define PRID_IMP_SONIC 0x2400
65#define PRID_IMP_MAGIC 0x2500
66#define PRID_IMP_RM7000 0x2700
67#define PRID_IMP_NEVADA 0x2800 /* RM5260 ??? */
68#define PRID_IMP_RM9000 0x3400
69#define PRID_IMP_R5432 0x5400
70#define PRID_IMP_R5500 0x5500
Maciej W. Rozycki98e316d2005-09-05 10:31:27 +000071
72#define PRID_IMP_UNKNOWN 0xff00
73
74/*
75 * These are the PRID's for when 23:16 == PRID_COMP_MIPS
76 */
77
Linus Torvalds1da177e2005-04-16 15:20:36 -070078#define PRID_IMP_4KC 0x8000
79#define PRID_IMP_5KC 0x8100
80#define PRID_IMP_20KC 0x8200
81#define PRID_IMP_4KEC 0x8400
82#define PRID_IMP_4KSC 0x8600
83#define PRID_IMP_25KF 0x8800
84#define PRID_IMP_5KE 0x8900
85#define PRID_IMP_4KECR2 0x9000
86#define PRID_IMP_4KEMPR2 0x9100
87#define PRID_IMP_4KSD 0x9200
88#define PRID_IMP_24K 0x9300
Ralf Baechlebbc7f222005-07-12 16:12:05 +000089#define PRID_IMP_34K 0x9500
Ralf Baechlee50c0a82005-05-31 11:49:19 +000090#define PRID_IMP_24KE 0x9600
Chris Dearmanc6209532006-05-02 14:08:46 +010091#define PRID_IMP_74K 0x9700
Ralf Baechle39b8d522008-04-28 17:14:26 +010092#define PRID_IMP_1004K 0x9900
Fuxin Zhang2a21c732007-06-06 14:52:43 +080093#define PRID_IMP_LOONGSON1 0x4200
94#define PRID_IMP_LOONGSON2 0x6300
Linus Torvalds1da177e2005-04-16 15:20:36 -070095
Linus Torvalds1da177e2005-04-16 15:20:36 -070096/*
97 * These are the PRID's for when 23:16 == PRID_COMP_SIBYTE
98 */
99
100#define PRID_IMP_SB1 0x0100
Andrew Isaacson93ce2f522005-10-19 23:56:20 -0700101#define PRID_IMP_SB1A 0x1100
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102
103/*
104 * These are the PRID's for when 23:16 == PRID_COMP_SANDCRAFT
105 */
106
107#define PRID_IMP_SR71000 0x0400
108
109/*
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +0200110 * These are the PRID's for when 23:16 == PRID_COMP_BROADCOM
111 */
112
113#define PRID_IMP_BCM4710 0x4000
114#define PRID_IMP_BCM3302 0x9000
115
116/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117 * Definitions for 7:0 on legacy processors
118 */
119
Marc St-Jean9267a302007-06-14 15:55:31 -0600120#define PRID_REV_MASK 0x00ff
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121
122#define PRID_REV_TX4927 0x0022
123#define PRID_REV_TX4937 0x0030
124#define PRID_REV_R4400 0x0040
125#define PRID_REV_R3000A 0x0030
126#define PRID_REV_R3000 0x0020
127#define PRID_REV_R2000A 0x0010
128#define PRID_REV_TX3912 0x0010
129#define PRID_REV_TX3922 0x0030
130#define PRID_REV_TX3927 0x0040
131#define PRID_REV_VR4111 0x0050
132#define PRID_REV_VR4181 0x0050 /* Same as VR4111 */
133#define PRID_REV_VR4121 0x0060
134#define PRID_REV_VR4122 0x0070
135#define PRID_REV_VR4181A 0x0070 /* Same as VR4122 */
136#define PRID_REV_VR4130 0x0080
Marc St-Jean9267a302007-06-14 15:55:31 -0600137#define PRID_REV_34K_V1_0_2 0x0022
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138
139/*
Ralf Baechlefde97822007-07-06 14:40:05 +0100140 * Older processors used to encode processor version and revision in two
141 * 4-bit bitfields, the 4K seems to simply count up and even newer MTI cores
142 * have switched to use the 8-bits as 3:3:2 bitfield with the last field as
143 * the patch number. *ARGH*
144 */
145#define PRID_REV_ENCODE_44(ver, rev) \
146 ((ver) << 4 | (rev))
147#define PRID_REV_ENCODE_332(ver, rev, patch) \
148 ((ver) << 5 | (rev) << 2 | (patch))
149
150/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151 * FPU implementation/revision register (CP1 control register 0).
152 *
153 * +---------------------------------+----------------+----------------+
154 * | 0 | Implementation | Revision |
155 * +---------------------------------+----------------+----------------+
156 * 31 16 15 8 7 0
157 */
158
159#define FPIR_IMP_NONE 0x0000
160
Ralf Baechle36cfbaa2007-10-11 23:46:16 +0100161enum cpu_type_enum {
162 CPU_UNKNOWN,
163
164 /*
165 * R2000 class processors
166 */
167 CPU_R2000, CPU_R3000, CPU_R3000A, CPU_R3041, CPU_R3051, CPU_R3052,
168 CPU_R3081, CPU_R3081E,
169
170 /*
171 * R6000 class processors
172 */
173 CPU_R6000, CPU_R6000A,
174
175 /*
176 * R4000 class processors
177 */
178 CPU_R4000PC, CPU_R4000SC, CPU_R4000MC, CPU_R4200, CPU_R4300, CPU_R4310,
179 CPU_R4400PC, CPU_R4400SC, CPU_R4400MC, CPU_R4600, CPU_R4640, CPU_R4650,
180 CPU_R4700, CPU_R5000, CPU_R5000A, CPU_R5500, CPU_NEVADA, CPU_R5432,
181 CPU_R10000, CPU_R12000, CPU_R14000, CPU_VR41XX, CPU_VR4111, CPU_VR4121,
182 CPU_VR4122, CPU_VR4131, CPU_VR4133, CPU_VR4181, CPU_VR4181A, CPU_RM7000,
183 CPU_SR71000, CPU_RM9000, CPU_TX49XX,
184
185 /*
186 * R8000 class processors
187 */
188 CPU_R8000,
189
190 /*
191 * TX3900 class processors
192 */
193 CPU_TX3912, CPU_TX3922, CPU_TX3927,
194
195 /*
196 * MIPS32 class processors
197 */
Ralf Baechle39b8d522008-04-28 17:14:26 +0100198 CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_1004K, CPU_74K,
199 CPU_AU1000, CPU_AU1100, CPU_AU1200, CPU_AU1210, CPU_AU1250, CPU_AU1500,
200 CPU_AU1550, CPU_PR4450, CPU_BCM3302, CPU_BCM4710,
Ralf Baechle36cfbaa2007-10-11 23:46:16 +0100201
202 /*
203 * MIPS64 class processors
204 */
205 CPU_5KC, CPU_20KC, CPU_25KF, CPU_SB1, CPU_SB1A, CPU_LOONGSON2,
206
207 CPU_LAST
208};
209
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210
211/*
212 * ISA Level encodings
213 *
214 */
215#define MIPS_CPU_ISA_I 0x00000001
216#define MIPS_CPU_ISA_II 0x00000002
Maciej W. Rozycki9cf8ff92006-02-13 09:15:49 +0000217#define MIPS_CPU_ISA_III 0x00000004
218#define MIPS_CPU_ISA_IV 0x00000008
219#define MIPS_CPU_ISA_V 0x00000010
Ralf Baechlee7958bb2005-12-08 13:00:20 +0000220#define MIPS_CPU_ISA_M32R1 0x00000020
Ralf Baechleb4672d32005-12-08 14:04:24 +0000221#define MIPS_CPU_ISA_M32R2 0x00000040
Ralf Baechle04015722005-12-09 12:20:49 +0000222#define MIPS_CPU_ISA_M64R1 0x00000080
223#define MIPS_CPU_ISA_M64R2 0x00000100
224
225#define MIPS_CPU_ISA_32BIT (MIPS_CPU_ISA_I | MIPS_CPU_ISA_II | \
226 MIPS_CPU_ISA_M32R1 | MIPS_CPU_ISA_M32R2 )
227#define MIPS_CPU_ISA_64BIT (MIPS_CPU_ISA_III | MIPS_CPU_ISA_IV | \
228 MIPS_CPU_ISA_V | MIPS_CPU_ISA_M64R1 | MIPS_CPU_ISA_M64R2)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229
230/*
231 * CPU Option encodings
232 */
233#define MIPS_CPU_TLB 0x00000001 /* CPU has TLB */
Ralf Baechle02cf2112005-10-01 13:06:32 +0100234#define MIPS_CPU_4KEX 0x00000002 /* "R4K" exception model */
235#define MIPS_CPU_3K_CACHE 0x00000004 /* R3000-style caches */
236#define MIPS_CPU_4K_CACHE 0x00000008 /* R4000-style caches */
237#define MIPS_CPU_TX39_CACHE 0x00000010 /* TX3900-style caches */
Ralf Baechle641e97f2007-10-11 23:46:05 +0100238#define MIPS_CPU_FPU 0x00000020 /* CPU has FPU */
239#define MIPS_CPU_32FPR 0x00000040 /* 32 dbl. prec. FP registers */
240#define MIPS_CPU_COUNTER 0x00000080 /* Cycle count/compare */
241#define MIPS_CPU_WATCH 0x00000100 /* watchpoint registers */
242#define MIPS_CPU_DIVEC 0x00000200 /* dedicated interrupt vector */
243#define MIPS_CPU_VCE 0x00000400 /* virt. coherence conflict possible */
244#define MIPS_CPU_CACHE_CDEX_P 0x00000800 /* Create_Dirty_Exclusive CACHE op */
245#define MIPS_CPU_CACHE_CDEX_S 0x00001000 /* ... same for seconary cache ... */
246#define MIPS_CPU_MCHECK 0x00002000 /* Machine check exception */
247#define MIPS_CPU_EJTAG 0x00004000 /* EJTAG exception */
248#define MIPS_CPU_NOFPUEX 0x00008000 /* no FPU exception */
249#define MIPS_CPU_LLSC 0x00010000 /* CPU has ll/sc instructions */
250#define MIPS_CPU_INCLUSIVE_CACHES 0x00020000 /* P-cache subset enforced */
251#define MIPS_CPU_PREFETCH 0x00040000 /* CPU has usable prefetch */
252#define MIPS_CPU_VINT 0x00080000 /* CPU supports MIPSR2 vectored interrupts */
253#define MIPS_CPU_VEIC 0x00100000 /* CPU supports MIPSR2 external interrupt controller mode */
254#define MIPS_CPU_ULRI 0x00200000 /* CPU has ULRI feature */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255
Ralf Baechle41943182005-05-05 16:45:59 +0000256/*
257 * CPU ASE encodings
258 */
259#define MIPS_ASE_MIPS16 0x00000001 /* code compression */
260#define MIPS_ASE_MDMX 0x00000002 /* MIPS digital media extension */
261#define MIPS_ASE_MIPS3D 0x00000004 /* MIPS-3D */
262#define MIPS_ASE_SMARTMIPS 0x00000008 /* SmartMIPS */
Ralf Baechlee50c0a82005-05-31 11:49:19 +0000263#define MIPS_ASE_DSP 0x00000010 /* Signal Processing ASE */
Ralf Baechle8f406112005-07-14 07:34:18 +0000264#define MIPS_ASE_MIPSMT 0x00000020 /* CPU supports MIPS MT */
265
Ralf Baechle41943182005-05-05 16:45:59 +0000266
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267#endif /* _ASM_CPU_H */