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1/*
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)
6 * Copyright (C) 2004 Maciej W. Rozycki
7 */
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
26#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
32#define PRID_COMP_NXP 0x060000
33#define PRID_COMP_TOSHIBA 0x070000
34#define PRID_COMP_LSI 0x080000
35#define PRID_COMP_LEXRA 0x0b0000
36#define PRID_COMP_CAVIUM 0x0d0000
37#define PRID_COMP_INGENIC 0xd00000
38
39/*
40 * Assigned values for the product ID register. In order to detect a
41 * certain CPU type exactly eventually additional registers may need to
42 * be examined. These are valid when 23:16 == PRID_COMP_LEGACY
43 */
44#define PRID_IMP_R2000 0x0100
45#define PRID_IMP_AU1_REV1 0x0100
46#define PRID_IMP_AU1_REV2 0x0200
47#define PRID_IMP_R3000 0x0200 /* Same as R2000A */
48#define PRID_IMP_R6000 0x0300 /* Same as R3000A */
49#define PRID_IMP_R4000 0x0400
50#define PRID_IMP_R6000A 0x0600
51#define PRID_IMP_R10000 0x0900
52#define PRID_IMP_R4300 0x0b00
53#define PRID_IMP_VR41XX 0x0c00
54#define PRID_IMP_R12000 0x0e00
55#define PRID_IMP_R14000 0x0f00
56#define PRID_IMP_R8000 0x1000
57#define PRID_IMP_PR4450 0x1200
58#define PRID_IMP_R4600 0x2000
59#define PRID_IMP_R4700 0x2100
60#define PRID_IMP_TX39 0x2200
61#define PRID_IMP_R4640 0x2200
62#define PRID_IMP_R4650 0x2200 /* Same as R4640 */
63#define PRID_IMP_R5000 0x2300
64#define PRID_IMP_TX49 0x2d00
65#define PRID_IMP_SONIC 0x2400
66#define PRID_IMP_MAGIC 0x2500
67#define PRID_IMP_RM7000 0x2700
68#define PRID_IMP_NEVADA 0x2800 /* RM5260 ??? */
69#define PRID_IMP_RM9000 0x3400
70#define PRID_IMP_LOONGSON1 0x4200
71#define PRID_IMP_R5432 0x5400
72#define PRID_IMP_R5500 0x5500
73#define PRID_IMP_LOONGSON2 0x6300
74
75#define PRID_IMP_UNKNOWN 0xff00
76
77/*
78 * These are the PRID's for when 23:16 == PRID_COMP_MIPS
79 */
80
81#define PRID_IMP_4KC 0x8000
82#define PRID_IMP_5KC 0x8100
83#define PRID_IMP_20KC 0x8200
84#define PRID_IMP_4KEC 0x8400
85#define PRID_IMP_4KSC 0x8600
86#define PRID_IMP_25KF 0x8800
87#define PRID_IMP_5KE 0x8900
88#define PRID_IMP_4KECR2 0x9000
89#define PRID_IMP_4KEMPR2 0x9100
90#define PRID_IMP_4KSD 0x9200
91#define PRID_IMP_24K 0x9300
92#define PRID_IMP_34K 0x9500
93#define PRID_IMP_24KE 0x9600
94#define PRID_IMP_74K 0x9700
95#define PRID_IMP_1004K 0x9900
96
97/*
98 * These are the PRID's for when 23:16 == PRID_COMP_SIBYTE
99 */
100
101#define PRID_IMP_SB1 0x0100
102#define PRID_IMP_SB1A 0x1100
103
104/*
105 * These are the PRID's for when 23:16 == PRID_COMP_SANDCRAFT
106 */
107
108#define PRID_IMP_SR71000 0x0400
109
110/*
111 * These are the PRID's for when 23:16 == PRID_COMP_BROADCOM
112 */
113
114#define PRID_IMP_BMIPS32_REV4 0x4000
115#define PRID_IMP_BMIPS32_REV8 0x8000
116#define PRID_IMP_BMIPS3300 0x9000
117#define PRID_IMP_BMIPS3300_ALT 0x9100
118#define PRID_IMP_BMIPS3300_BUG 0x0000
119#define PRID_IMP_BMIPS43XX 0xa000
120#define PRID_IMP_BMIPS5000 0x5a00
121
122#define PRID_REV_BMIPS4380_LO 0x0040
123#define PRID_REV_BMIPS4380_HI 0x006f
124
125/*
126 * These are the PRID's for when 23:16 == PRID_COMP_CAVIUM
127 */
128
129#define PRID_IMP_CAVIUM_CN38XX 0x0000
130#define PRID_IMP_CAVIUM_CN31XX 0x0100
131#define PRID_IMP_CAVIUM_CN30XX 0x0200
132#define PRID_IMP_CAVIUM_CN58XX 0x0300
133#define PRID_IMP_CAVIUM_CN56XX 0x0400
134#define PRID_IMP_CAVIUM_CN50XX 0x0600
135#define PRID_IMP_CAVIUM_CN52XX 0x0700
136#define PRID_IMP_CAVIUM_CN63XX 0x9000
137
138/*
139 * These are the PRID's for when 23:16 == PRID_COMP_INGENIC
140 */
141
142#define PRID_IMP_JZRISC 0x0200
143
144/*
145 * Definitions for 7:0 on legacy processors
146 */
147
148#define PRID_REV_MASK 0x00ff
149
150#define PRID_REV_TX4927 0x0022
151#define PRID_REV_TX4937 0x0030
152#define PRID_REV_R4400 0x0040
153#define PRID_REV_R3000A 0x0030
154#define PRID_REV_R3000 0x0020
155#define PRID_REV_R2000A 0x0010
156#define PRID_REV_TX3912 0x0010
157#define PRID_REV_TX3922 0x0030
158#define PRID_REV_TX3927 0x0040
159#define PRID_REV_VR4111 0x0050
160#define PRID_REV_VR4181 0x0050 /* Same as VR4111 */
161#define PRID_REV_VR4121 0x0060
162#define PRID_REV_VR4122 0x0070
163#define PRID_REV_VR4181A 0x0070 /* Same as VR4122 */
164#define PRID_REV_VR4130 0x0080
165#define PRID_REV_34K_V1_0_2 0x0022
166#define PRID_REV_LOONGSON2E 0x0002
167#define PRID_REV_LOONGSON2F 0x0003
168
169/*
170 * Older processors used to encode processor version and revision in two
171 * 4-bit bitfields, the 4K seems to simply count up and even newer MTI cores
172 * have switched to use the 8-bits as 3:3:2 bitfield with the last field as
173 * the patch number. *ARGH*
174 */
175#define PRID_REV_ENCODE_44(ver, rev) \
176 ((ver) << 4 | (rev))
177#define PRID_REV_ENCODE_332(ver, rev, patch) \
178 ((ver) << 5 | (rev) << 2 | (patch))
179
180/*
181 * FPU implementation/revision register (CP1 control register 0).
182 *
183 * +---------------------------------+----------------+----------------+
184 * | 0 | Implementation | Revision |
185 * +---------------------------------+----------------+----------------+
186 * 31 16 15 8 7 0
187 */
188
189#define FPIR_IMP_NONE 0x0000
190
191enum cpu_type_enum {
192 CPU_UNKNOWN,
193
194 /*
195 * R2000 class processors
196 */
197 CPU_R2000, CPU_R3000, CPU_R3000A, CPU_R3041, CPU_R3051, CPU_R3052,
198 CPU_R3081, CPU_R3081E,
199
200 /*
201 * R6000 class processors
202 */
203 CPU_R6000, CPU_R6000A,
204
205 /*
206 * R4000 class processors
207 */
208 CPU_R4000PC, CPU_R4000SC, CPU_R4000MC, CPU_R4200, CPU_R4300, CPU_R4310,
209 CPU_R4400PC, CPU_R4400SC, CPU_R4400MC, CPU_R4600, CPU_R4640, CPU_R4650,
210 CPU_R4700, CPU_R5000, CPU_R5000A, CPU_R5500, CPU_NEVADA, CPU_R5432,
211 CPU_R10000, CPU_R12000, CPU_R14000, CPU_VR41XX, CPU_VR4111, CPU_VR4121,
212 CPU_VR4122, CPU_VR4131, CPU_VR4133, CPU_VR4181, CPU_VR4181A, CPU_RM7000,
213 CPU_SR71000, CPU_RM9000, CPU_TX49XX,
214
215 /*
216 * R8000 class processors
217 */
218 CPU_R8000,
219
220 /*
221 * TX3900 class processors
222 */
223 CPU_TX3912, CPU_TX3922, CPU_TX3927,
224
225 /*
226 * MIPS32 class processors
227 */
228 CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_1004K, CPU_74K,
229 CPU_ALCHEMY, CPU_PR4450, CPU_BMIPS32, CPU_BMIPS3300, CPU_BMIPS4350,
230 CPU_BMIPS4380, CPU_BMIPS5000, CPU_JZRISC,
231
232 /*
233 * MIPS64 class processors
234 */
235 CPU_5KC, CPU_20KC, CPU_25KF, CPU_SB1, CPU_SB1A, CPU_LOONGSON2,
236 CPU_CAVIUM_OCTEON, CPU_CAVIUM_OCTEON_PLUS, CPU_CAVIUM_OCTEON2,
237
238 CPU_LAST
239};
240
241
242/*
243 * ISA Level encodings
244 *
245 */
246#define MIPS_CPU_ISA_I 0x00000001
247#define MIPS_CPU_ISA_II 0x00000002
248#define MIPS_CPU_ISA_III 0x00000004
249#define MIPS_CPU_ISA_IV 0x00000008
250#define MIPS_CPU_ISA_V 0x00000010
251#define MIPS_CPU_ISA_M32R1 0x00000020
252#define MIPS_CPU_ISA_M32R2 0x00000040
253#define MIPS_CPU_ISA_M64R1 0x00000080
254#define MIPS_CPU_ISA_M64R2 0x00000100
255
256#define MIPS_CPU_ISA_32BIT (MIPS_CPU_ISA_I | MIPS_CPU_ISA_II | \
257 MIPS_CPU_ISA_M32R1 | MIPS_CPU_ISA_M32R2 )
258#define MIPS_CPU_ISA_64BIT (MIPS_CPU_ISA_III | MIPS_CPU_ISA_IV | \
259 MIPS_CPU_ISA_V | MIPS_CPU_ISA_M64R1 | MIPS_CPU_ISA_M64R2)
260
261/*
262 * CPU Option encodings
263 */
264#define MIPS_CPU_TLB 0x00000001 /* CPU has TLB */
265#define MIPS_CPU_4KEX 0x00000002 /* "R4K" exception model */
266#define MIPS_CPU_3K_CACHE 0x00000004 /* R3000-style caches */
267#define MIPS_CPU_4K_CACHE 0x00000008 /* R4000-style caches */
268#define MIPS_CPU_TX39_CACHE 0x00000010 /* TX3900-style caches */
269#define MIPS_CPU_FPU 0x00000020 /* CPU has FPU */
270#define MIPS_CPU_32FPR 0x00000040 /* 32 dbl. prec. FP registers */
271#define MIPS_CPU_COUNTER 0x00000080 /* Cycle count/compare */
272#define MIPS_CPU_WATCH 0x00000100 /* watchpoint registers */
273#define MIPS_CPU_DIVEC 0x00000200 /* dedicated interrupt vector */
274#define MIPS_CPU_VCE 0x00000400 /* virt. coherence conflict possible */
275#define MIPS_CPU_CACHE_CDEX_P 0x00000800 /* Create_Dirty_Exclusive CACHE op */
276#define MIPS_CPU_CACHE_CDEX_S 0x00001000 /* ... same for seconary cache ... */
277#define MIPS_CPU_MCHECK 0x00002000 /* Machine check exception */
278#define MIPS_CPU_EJTAG 0x00004000 /* EJTAG exception */
279#define MIPS_CPU_NOFPUEX 0x00008000 /* no FPU exception */
280#define MIPS_CPU_LLSC 0x00010000 /* CPU has ll/sc instructions */
281#define MIPS_CPU_INCLUSIVE_CACHES 0x00020000 /* P-cache subset enforced */
282#define MIPS_CPU_PREFETCH 0x00040000 /* CPU has usable prefetch */
283#define MIPS_CPU_VINT 0x00080000 /* CPU supports MIPSR2 vectored interrupts */
284#define MIPS_CPU_VEIC 0x00100000 /* CPU supports MIPSR2 external interrupt controller mode */
285#define MIPS_CPU_ULRI 0x00200000 /* CPU has ULRI feature */
286
287/*
288 * CPU ASE encodings
289 */
290#define MIPS_ASE_MIPS16 0x00000001 /* code compression */
291#define MIPS_ASE_MDMX 0x00000002 /* MIPS digital media extension */
292#define MIPS_ASE_MIPS3D 0x00000004 /* MIPS-3D */
293#define MIPS_ASE_SMARTMIPS 0x00000008 /* SmartMIPS */
294#define MIPS_ASE_DSP 0x00000010 /* Signal Processing ASE */
295#define MIPS_ASE_MIPSMT 0x00000020 /* CPU supports MIPS MT */
296
297
298#endif /* _ASM_CPU_H */