MIPS: highmem: Turn flush_cache_kmaps into a no-op.
[deliverable/linux.git] / arch / mips / include / asm / cpu.h
CommitLineData
1da177e4
LT
1/*
2 * cpu.h: Values of the PRId register used to match up
70342287 3 * various MIPS cpu types.
1da177e4 4 *
79add627 5 * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
8ff374b9 6 * Copyright (C) 2004, 2013 Maciej W. Rozycki
1da177e4
LT
7 */
8#ifndef _ASM_CPU_H
9#define _ASM_CPU_H
10
8ff374b9
MR
11/*
12 As of the MIPS32 and MIPS64 specs from MTI, the PRId register (CP0
13 register 15, select 0) is defined in this (backwards compatible) way:
1da177e4
LT
14
15 +----------------+----------------+----------------+----------------+
70342287 16 | Company Options| Company ID | Processor ID | Revision |
1da177e4 17 +----------------+----------------+----------------+----------------+
70342287 18 31 24 23 16 15 8 7
1da177e4
LT
19
20 I don't have docs for all the previous processors, but my impression is
21 that bits 16-23 have been 0 for all MIPS processors before the MIPS32/64
22 spec.
23*/
24
8ff374b9
MR
25#define PRID_OPT_MASK 0xff000000
26
27/*
28 * Assigned Company values for bits 23:16 of the PRId register.
29 */
30
31#define PRID_COMP_MASK 0xff0000
32
55a6feb6
RB
33#define PRID_COMP_LEGACY 0x000000
34#define PRID_COMP_MIPS 0x010000
35#define PRID_COMP_BROADCOM 0x020000
36#define PRID_COMP_ALCHEMY 0x030000
37#define PRID_COMP_SIBYTE 0x040000
38#define PRID_COMP_SANDCRAFT 0x050000
70342287 39#define PRID_COMP_NXP 0x060000
55a6feb6
RB
40#define PRID_COMP_TOSHIBA 0x070000
41#define PRID_COMP_LSI 0x080000
42#define PRID_COMP_LEXRA 0x0b0000
a7117c6b 43#define PRID_COMP_NETLOGIC 0x0c0000
0dd4781b 44#define PRID_COMP_CAVIUM 0x0d0000
252617a4
PB
45#define PRID_COMP_INGENIC_D0 0xd00000 /* JZ4740, JZ4750 */
46#define PRID_COMP_INGENIC_D1 0xd10000 /* JZ4770, JZ4775 */
47#define PRID_COMP_INGENIC_E1 0xe10000 /* JZ4780 */
1da177e4
LT
48
49/*
8ff374b9
MR
50 * Assigned Processor ID (implementation) values for bits 15:8 of the PRId
51 * register. In order to detect a certain CPU type exactly eventually
52 * additional registers may need to be examined.
1da177e4 53 */
8ff374b9
MR
54
55#define PRID_IMP_MASK 0xff00
56
57/*
58 * These are valid when 23:16 == PRID_COMP_LEGACY
59 */
60
1da177e4
LT
61#define PRID_IMP_R2000 0x0100
62#define PRID_IMP_AU1_REV1 0x0100
63#define PRID_IMP_AU1_REV2 0x0200
64#define PRID_IMP_R3000 0x0200 /* Same as R2000A */
65#define PRID_IMP_R6000 0x0300 /* Same as R3000A */
66#define PRID_IMP_R4000 0x0400
67#define PRID_IMP_R6000A 0x0600
68#define PRID_IMP_R10000 0x0900
69#define PRID_IMP_R4300 0x0b00
70#define PRID_IMP_VR41XX 0x0c00
71#define PRID_IMP_R12000 0x0e00
30577391 72#define PRID_IMP_R14000 0x0f00 /* R14K && R16K */
1da177e4 73#define PRID_IMP_R8000 0x1000
bdf21b18 74#define PRID_IMP_PR4450 0x1200
1da177e4
LT
75#define PRID_IMP_R4600 0x2000
76#define PRID_IMP_R4700 0x2100
77#define PRID_IMP_TX39 0x2200
78#define PRID_IMP_R4640 0x2200
79#define PRID_IMP_R4650 0x2200 /* Same as R4640 */
80#define PRID_IMP_R5000 0x2300
81#define PRID_IMP_TX49 0x2d00
82#define PRID_IMP_SONIC 0x2400
83#define PRID_IMP_MAGIC 0x2500
84#define PRID_IMP_RM7000 0x2700
85#define PRID_IMP_NEVADA 0x2800 /* RM5260 ??? */
86#define PRID_IMP_RM9000 0x3400
26859198 87#define PRID_IMP_LOONGSON_32 0x4200 /* Loongson-1 */
1da177e4
LT
88#define PRID_IMP_R5432 0x5400
89#define PRID_IMP_R5500 0x5500
26859198 90#define PRID_IMP_LOONGSON_64 0x6300 /* Loongson-2/3 */
98e316d4
MR
91
92#define PRID_IMP_UNKNOWN 0xff00
93
94/*
95 * These are the PRID's for when 23:16 == PRID_COMP_MIPS
96 */
97
aca5721e 98#define PRID_IMP_QEMU_GENERIC 0x0000
1da177e4
LT
99#define PRID_IMP_4KC 0x8000
100#define PRID_IMP_5KC 0x8100
101#define PRID_IMP_20KC 0x8200
102#define PRID_IMP_4KEC 0x8400
103#define PRID_IMP_4KSC 0x8600
104#define PRID_IMP_25KF 0x8800
105#define PRID_IMP_5KE 0x8900
106#define PRID_IMP_4KECR2 0x9000
107#define PRID_IMP_4KEMPR2 0x9100
108#define PRID_IMP_4KSD 0x9200
109#define PRID_IMP_24K 0x9300
bbc7f22f 110#define PRID_IMP_34K 0x9500
e50c0a8f 111#define PRID_IMP_24KE 0x9600
c620953c 112#define PRID_IMP_74K 0x9700
39b8d525 113#define PRID_IMP_1004K 0x9900
006a851b 114#define PRID_IMP_1074K 0x9a00
113c62d9 115#define PRID_IMP_M14KC 0x9c00
f8fa4811 116#define PRID_IMP_M14KEC 0x9e00
0ce7d58e
LY
117#define PRID_IMP_INTERAPTIV_UP 0xa000
118#define PRID_IMP_INTERAPTIV_MP 0xa100
76f59e32
LY
119#define PRID_IMP_PROAPTIV_UP 0xa200
120#define PRID_IMP_PROAPTIV_MP 0xa300
4975b86a 121#define PRID_IMP_M5150 0xa700
f43e4dfd 122#define PRID_IMP_P5600 0xa800
90b8baa2 123#define PRID_IMP_I6400 0xa900
1da177e4 124
1da177e4
LT
125/*
126 * These are the PRID's for when 23:16 == PRID_COMP_SIBYTE
127 */
128
70342287
RB
129#define PRID_IMP_SB1 0x0100
130#define PRID_IMP_SB1A 0x1100
1da177e4
LT
131
132/*
133 * These are the PRID's for when 23:16 == PRID_COMP_SANDCRAFT
134 */
135
70342287 136#define PRID_IMP_SR71000 0x0400
1da177e4 137
1c0c13eb
AJ
138/*
139 * These are the PRID's for when 23:16 == PRID_COMP_BROADCOM
140 */
141
190fca3e
KC
142#define PRID_IMP_BMIPS32_REV4 0x4000
143#define PRID_IMP_BMIPS32_REV8 0x8000
602977b0
KC
144#define PRID_IMP_BMIPS3300 0x9000
145#define PRID_IMP_BMIPS3300_ALT 0x9100
146#define PRID_IMP_BMIPS3300_BUG 0x0000
147#define PRID_IMP_BMIPS43XX 0xa000
148#define PRID_IMP_BMIPS5000 0x5a00
68e6a783 149#define PRID_IMP_BMIPS5200 0x5b00
602977b0
KC
150
151#define PRID_REV_BMIPS4380_LO 0x0040
152#define PRID_REV_BMIPS4380_HI 0x006f
1c0c13eb 153
0dd4781b
DD
154/*
155 * These are the PRID's for when 23:16 == PRID_COMP_CAVIUM
156 */
157
158#define PRID_IMP_CAVIUM_CN38XX 0x0000
159#define PRID_IMP_CAVIUM_CN31XX 0x0100
160#define PRID_IMP_CAVIUM_CN30XX 0x0200
161#define PRID_IMP_CAVIUM_CN58XX 0x0300
162#define PRID_IMP_CAVIUM_CN56XX 0x0400
163#define PRID_IMP_CAVIUM_CN50XX 0x0600
164#define PRID_IMP_CAVIUM_CN52XX 0x0700
1584d7f2 165#define PRID_IMP_CAVIUM_CN63XX 0x9000
074ef0d2
DD
166#define PRID_IMP_CAVIUM_CN68XX 0x9100
167#define PRID_IMP_CAVIUM_CN66XX 0x9200
168#define PRID_IMP_CAVIUM_CN61XX 0x9300
71a8b7d8
DD
169#define PRID_IMP_CAVIUM_CNF71XX 0x9400
170#define PRID_IMP_CAVIUM_CN78XX 0x9500
171#define PRID_IMP_CAVIUM_CN70XX 0x9600
0dd4781b 172
83ccf69d 173/*
252617a4 174 * These are the PRID's for when 23:16 == PRID_COMP_INGENIC_*
83ccf69d
LPC
175 */
176
70342287 177#define PRID_IMP_JZRISC 0x0200
83ccf69d 178
a7117c6b
J
179/*
180 * These are the PRID's for when 23:16 == PRID_COMP_NETLOGIC
181 */
182#define PRID_IMP_NETLOGIC_XLR732 0x0000
183#define PRID_IMP_NETLOGIC_XLR716 0x0200
184#define PRID_IMP_NETLOGIC_XLR532 0x0900
185#define PRID_IMP_NETLOGIC_XLR308 0x0600
186#define PRID_IMP_NETLOGIC_XLR532C 0x0800
187#define PRID_IMP_NETLOGIC_XLR516C 0x0a00
188#define PRID_IMP_NETLOGIC_XLR508C 0x0b00
189#define PRID_IMP_NETLOGIC_XLR308C 0x0f00
190#define PRID_IMP_NETLOGIC_XLS608 0x8000
191#define PRID_IMP_NETLOGIC_XLS408 0x8800
192#define PRID_IMP_NETLOGIC_XLS404 0x8c00
193#define PRID_IMP_NETLOGIC_XLS208 0x8e00
194#define PRID_IMP_NETLOGIC_XLS204 0x8f00
195#define PRID_IMP_NETLOGIC_XLS108 0xce00
196#define PRID_IMP_NETLOGIC_XLS104 0xcf00
197#define PRID_IMP_NETLOGIC_XLS616B 0x4000
198#define PRID_IMP_NETLOGIC_XLS608B 0x4a00
199#define PRID_IMP_NETLOGIC_XLS416B 0x4400
200#define PRID_IMP_NETLOGIC_XLS412B 0x4c00
201#define PRID_IMP_NETLOGIC_XLS408B 0x4e00
202#define PRID_IMP_NETLOGIC_XLS404B 0x4f00
809f36c6 203#define PRID_IMP_NETLOGIC_AU13XX 0x8000
a7117c6b 204
2aa54b20
J
205#define PRID_IMP_NETLOGIC_XLP8XX 0x1000
206#define PRID_IMP_NETLOGIC_XLP3XX 0x1100
4ca86a2f 207#define PRID_IMP_NETLOGIC_XLP2XX 0x1200
8907c55e 208#define PRID_IMP_NETLOGIC_XLP9XX 0x1500
1c983986 209#define PRID_IMP_NETLOGIC_XLP5XX 0x1300
a7117c6b 210
1da177e4 211/*
8ff374b9 212 * Particular Revision values for bits 7:0 of the PRId register.
1da177e4
LT
213 */
214
9267a30d 215#define PRID_REV_MASK 0x00ff
1da177e4 216
8ff374b9
MR
217/*
218 * Definitions for 7:0 on legacy processors
219 */
220
1da177e4
LT
221#define PRID_REV_TX4927 0x0022
222#define PRID_REV_TX4937 0x0030
223#define PRID_REV_R4400 0x0040
224#define PRID_REV_R3000A 0x0030
225#define PRID_REV_R3000 0x0020
226#define PRID_REV_R2000A 0x0010
70342287
RB
227#define PRID_REV_TX3912 0x0010
228#define PRID_REV_TX3922 0x0030
229#define PRID_REV_TX3927 0x0040
1da177e4
LT
230#define PRID_REV_VR4111 0x0050
231#define PRID_REV_VR4181 0x0050 /* Same as VR4111 */
232#define PRID_REV_VR4121 0x0060
233#define PRID_REV_VR4122 0x0070
234#define PRID_REV_VR4181A 0x0070 /* Same as VR4122 */
235#define PRID_REV_VR4130 0x0080
9267a30d 236#define PRID_REV_34K_V1_0_2 0x0022
2fa36399 237#define PRID_REV_LOONGSON1B 0x0020
f8ede0f7
WZ
238#define PRID_REV_LOONGSON2E 0x0002
239#define PRID_REV_LOONGSON2F 0x0003
152ebb44 240#define PRID_REV_LOONGSON3A 0x0005
e7841be5
HC
241#define PRID_REV_LOONGSON3B_R1 0x0006
242#define PRID_REV_LOONGSON3B_R2 0x0007
1da177e4 243
fde97822
RB
244/*
245 * Older processors used to encode processor version and revision in two
246 * 4-bit bitfields, the 4K seems to simply count up and even newer MTI cores
247 * have switched to use the 8-bits as 3:3:2 bitfield with the last field as
248 * the patch number. *ARGH*
249 */
250#define PRID_REV_ENCODE_44(ver, rev) \
251 ((ver) << 4 | (rev))
252#define PRID_REV_ENCODE_332(ver, rev, patch) \
253 ((ver) << 5 | (rev) << 2 | (patch))
254
1da177e4
LT
255/*
256 * FPU implementation/revision register (CP1 control register 0).
257 *
258 * +---------------------------------+----------------+----------------+
70342287 259 * | 0 | Implementation | Revision |
1da177e4 260 * +---------------------------------+----------------+----------------+
70342287 261 * 31 16 15 8 7 0
1da177e4
LT
262 */
263
8ff374b9
MR
264#define FPIR_IMP_MASK 0xff00
265
1da177e4
LT
266#define FPIR_IMP_NONE 0x0000
267
68248d0c
JG
268#if !defined(__ASSEMBLY__)
269
36cfbaad
RB
270enum cpu_type_enum {
271 CPU_UNKNOWN,
272
273 /*
274 * R2000 class processors
275 */
276 CPU_R2000, CPU_R3000, CPU_R3000A, CPU_R3041, CPU_R3051, CPU_R3052,
277 CPU_R3081, CPU_R3081E,
278
279 /*
280 * R6000 class processors
281 */
282 CPU_R6000, CPU_R6000A,
283
284 /*
285 * R4000 class processors
286 */
287 CPU_R4000PC, CPU_R4000SC, CPU_R4000MC, CPU_R4200, CPU_R4300, CPU_R4310,
288 CPU_R4400PC, CPU_R4400SC, CPU_R4400MC, CPU_R4600, CPU_R4640, CPU_R4650,
fb2b1dba 289 CPU_R4700, CPU_R5000, CPU_R5500, CPU_NEVADA, CPU_R5432, CPU_R10000,
30577391
JK
290 CPU_R12000, CPU_R14000, CPU_R16000, CPU_VR41XX, CPU_VR4111, CPU_VR4121,
291 CPU_VR4122, CPU_VR4131, CPU_VR4133, CPU_VR4181, CPU_VR4181A, CPU_RM7000,
321b1863 292 CPU_SR71000, CPU_TX49XX,
36cfbaad
RB
293
294 /*
295 * R8000 class processors
296 */
297 CPU_R8000,
298
299 /*
300 * TX3900 class processors
301 */
302 CPU_TX3912, CPU_TX3922, CPU_TX3927,
303
304 /*
305 * MIPS32 class processors
306 */
39b8d525 307 CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_1004K, CPU_74K,
602977b0 308 CPU_ALCHEMY, CPU_PR4450, CPU_BMIPS32, CPU_BMIPS3300, CPU_BMIPS4350,
2fa36399 309 CPU_BMIPS4380, CPU_BMIPS5000, CPU_JZRISC, CPU_LOONGSON1, CPU_M14KC,
f36c4720 310 CPU_M14KEC, CPU_INTERAPTIV, CPU_P5600, CPU_PROAPTIV, CPU_1074K, CPU_M5150,
90b8baa2 311 CPU_I6400,
36cfbaad
RB
312
313 /*
314 * MIPS64 class processors
315 */
78d4803f 316 CPU_5KC, CPU_5KE, CPU_20KC, CPU_25KF, CPU_SB1, CPU_SB1A, CPU_LOONGSON2,
152ebb44
HC
317 CPU_LOONGSON3, CPU_CAVIUM_OCTEON, CPU_CAVIUM_OCTEON_PLUS,
318 CPU_CAVIUM_OCTEON2, CPU_CAVIUM_OCTEON3, CPU_XLR, CPU_XLP,
36cfbaad 319
aca5721e
LY
320 CPU_QEMU_GENERIC,
321
36cfbaad
RB
322 CPU_LAST
323};
324
68248d0c 325#endif /* !__ASSEMBLY */
1da177e4
LT
326
327/*
328 * ISA Level encodings
329 *
330 */
1990e542
RB
331#define MIPS_CPU_ISA_II 0x00000001
332#define MIPS_CPU_ISA_III 0x00000002
333#define MIPS_CPU_ISA_IV 0x00000004
334#define MIPS_CPU_ISA_V 0x00000008
335#define MIPS_CPU_ISA_M32R1 0x00000010
336#define MIPS_CPU_ISA_M32R2 0x00000020
337#define MIPS_CPU_ISA_M64R1 0x00000040
338#define MIPS_CPU_ISA_M64R2 0x00000080
34c56fc1
LY
339#define MIPS_CPU_ISA_M32R6 0x00000100
340#define MIPS_CPU_ISA_M64R6 0x00000200
1990e542
RB
341
342#define MIPS_CPU_ISA_32BIT (MIPS_CPU_ISA_II | MIPS_CPU_ISA_M32R1 | \
34c56fc1 343 MIPS_CPU_ISA_M32R2 | MIPS_CPU_ISA_M32R6)
0401572a 344#define MIPS_CPU_ISA_64BIT (MIPS_CPU_ISA_III | MIPS_CPU_ISA_IV | \
34c56fc1
LY
345 MIPS_CPU_ISA_V | MIPS_CPU_ISA_M64R1 | MIPS_CPU_ISA_M64R2 | \
346 MIPS_CPU_ISA_M64R6)
1da177e4
LT
347
348/*
349 * CPU Option encodings
350 */
03a58777
MC
351#define MIPS_CPU_TLB 0x00000001ull /* CPU has TLB */
352#define MIPS_CPU_4KEX 0x00000002ull /* "R4K" exception model */
353#define MIPS_CPU_3K_CACHE 0x00000004ull /* R3000-style caches */
354#define MIPS_CPU_4K_CACHE 0x00000008ull /* R4000-style caches */
355#define MIPS_CPU_TX39_CACHE 0x00000010ull /* TX3900-style caches */
356#define MIPS_CPU_FPU 0x00000020ull /* CPU has FPU */
357#define MIPS_CPU_32FPR 0x00000040ull /* 32 dbl. prec. FP registers */
358#define MIPS_CPU_COUNTER 0x00000080ull /* Cycle count/compare */
359#define MIPS_CPU_WATCH 0x00000100ull /* watchpoint registers */
360#define MIPS_CPU_DIVEC 0x00000200ull /* dedicated interrupt vector */
361#define MIPS_CPU_VCE 0x00000400ull /* virt. coherence conflict possible */
362#define MIPS_CPU_CACHE_CDEX_P 0x00000800ull /* Create_Dirty_Exclusive CACHE op */
363#define MIPS_CPU_CACHE_CDEX_S 0x00001000ull /* ... same for seconary cache ... */
364#define MIPS_CPU_MCHECK 0x00002000ull /* Machine check exception */
365#define MIPS_CPU_EJTAG 0x00004000ull /* EJTAG exception */
366#define MIPS_CPU_NOFPUEX 0x00008000ull /* no FPU exception */
367#define MIPS_CPU_LLSC 0x00010000ull /* CPU has ll/sc instructions */
368#define MIPS_CPU_INCLUSIVE_CACHES 0x00020000ull /* P-cache subset enforced */
369#define MIPS_CPU_PREFETCH 0x00040000ull /* CPU has usable prefetch */
370#define MIPS_CPU_VINT 0x00080000ull /* CPU supports MIPSR2 vectored interrupts */
371#define MIPS_CPU_VEIC 0x00100000ull /* CPU supports MIPSR2 external interrupt controller mode */
372#define MIPS_CPU_ULRI 0x00200000ull /* CPU has ULRI feature */
373#define MIPS_CPU_PCI 0x00400000ull /* CPU has Perf Ctr Int indicator */
374#define MIPS_CPU_RIXI 0x00800000ull /* CPU has TLB Read/eXec Inhibit */
375#define MIPS_CPU_MICROMIPS 0x01000000ull /* CPU has microMIPS capability */
376#define MIPS_CPU_TLBINV 0x02000000ull /* CPU supports TLBINV/F */
377#define MIPS_CPU_SEGMENTS 0x04000000ull /* CPU supports Segmentation Control registers */
378#define MIPS_CPU_EVA 0x80000000ull /* CPU supports Enhanced Virtual Addressing */
e647e6b5 379#define MIPS_CPU_HTW 0x100000000ull /* CPU support Hardware Page Table Walker */
6ee729aa 380#define MIPS_CPU_RIXIEX 0x200000000ull /* CPU has unique exception codes for {Read, Execute}-Inhibit exceptions */
1f6c52ff 381#define MIPS_CPU_MAAR 0x400000000ull /* MAAR(I) registers are present */
adac5d53 382#define MIPS_CPU_FRE 0x800000000ull /* FRE & UFE bits implemented */
5aed9da1 383#define MIPS_CPU_RW_LLB 0x1000000000ull /* LLADDR/LLB writes are allowed */
c5b36783 384#define MIPS_CPU_XPA 0x2000000000ull /* CPU supports Extended Physical Addressing */
3e20a26b 385#define MIPS_CPU_CDMM 0x4000000000ull /* CPU has Common Device Memory Map */
8d5ded16 386#define MIPS_CPU_BP_GHIST 0x8000000000ull /* R12K+ Branch Prediction Global History */
aaa7be48 387#define MIPS_CPU_SP 0x10000000000ull /* Small (1KB) page support */
2f6f3136 388#define MIPS_CPU_FTLB 0x20000000000ull /* CPU has Fixed-page-size TLB */
9519ef37
MR
389#define MIPS_CPU_NAN_LEGACY 0x40000000000ull /* Legacy NaN implemented */
390#define MIPS_CPU_NAN_2008 0x80000000000ull /* 2008 NaN implemented */
1da177e4 391
4194318c
RB
392/*
393 * CPU ASE encodings
394 */
395#define MIPS_ASE_MIPS16 0x00000001 /* code compression */
396#define MIPS_ASE_MDMX 0x00000002 /* MIPS digital media extension */
397#define MIPS_ASE_MIPS3D 0x00000004 /* MIPS-3D */
398#define MIPS_ASE_SMARTMIPS 0x00000008 /* SmartMIPS */
e50c0a8f 399#define MIPS_ASE_DSP 0x00000010 /* Signal Processing ASE */
8f40611d 400#define MIPS_ASE_MIPSMT 0x00000020 /* CPU supports MIPS MT */
ee80f7c7 401#define MIPS_ASE_DSP2P 0x00000040 /* Signal Processing ASE Rev 2 */
1e7decdb 402#define MIPS_ASE_VZ 0x00000080 /* Virtualization ASE */
a5e9a69e 403#define MIPS_ASE_MSA 0x00000100 /* MIPS SIMD Architecture */
4194318c 404
1da177e4 405#endif /* _ASM_CPU_H */
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