Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
[linux-2.6] / include / asm-mips / cpu.h
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_PHILIPS       0x060000
33 #define PRID_COMP_TOSHIBA       0x070000
34 #define PRID_COMP_LSI           0x080000
35 #define PRID_COMP_LEXRA         0x0b0000
36
37
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
54 #define PRID_IMP_R14000         0x0f00
55 #define PRID_IMP_R8000          0x1000
56 #define PRID_IMP_PR4450         0x1200
57 #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
71
72 #define PRID_IMP_UNKNOWN        0xff00
73
74 /*
75  * These are the PRID's for when 23:16 == PRID_COMP_MIPS
76  */
77
78 #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
89 #define PRID_IMP_34K            0x9500
90 #define PRID_IMP_24KE           0x9600
91 #define PRID_IMP_74K            0x9700
92 #define PRID_IMP_LOONGSON1      0x4200
93 #define PRID_IMP_LOONGSON2      0x6300
94
95 /*
96  * These are the PRID's for when 23:16 == PRID_COMP_SIBYTE
97  */
98
99 #define PRID_IMP_SB1            0x0100
100 #define PRID_IMP_SB1A           0x1100
101
102 /*
103  * These are the PRID's for when 23:16 == PRID_COMP_SANDCRAFT
104  */
105
106 #define PRID_IMP_SR71000        0x0400
107
108 /*
109  * These are the PRID's for when 23:16 == PRID_COMP_BROADCOM
110  */
111
112 #define PRID_IMP_BCM4710        0x4000
113 #define PRID_IMP_BCM3302        0x9000
114
115 /*
116  * Definitions for 7:0 on legacy processors
117  */
118
119 #define PRID_REV_MASK           0x00ff
120
121 #define PRID_REV_TX4927         0x0022
122 #define PRID_REV_TX4937         0x0030
123 #define PRID_REV_R4400          0x0040
124 #define PRID_REV_R3000A         0x0030
125 #define PRID_REV_R3000          0x0020
126 #define PRID_REV_R2000A         0x0010
127 #define PRID_REV_TX3912         0x0010
128 #define PRID_REV_TX3922         0x0030
129 #define PRID_REV_TX3927         0x0040
130 #define PRID_REV_VR4111         0x0050
131 #define PRID_REV_VR4181         0x0050  /* Same as VR4111 */
132 #define PRID_REV_VR4121         0x0060
133 #define PRID_REV_VR4122         0x0070
134 #define PRID_REV_VR4181A        0x0070  /* Same as VR4122 */
135 #define PRID_REV_VR4130         0x0080
136 #define PRID_REV_34K_V1_0_2     0x0022
137
138 /*
139  * Older processors used to encode processor version and revision in two
140  * 4-bit bitfields, the 4K seems to simply count up and even newer MTI cores
141  * have switched to use the 8-bits as 3:3:2 bitfield with the last field as
142  * the patch number.  *ARGH*
143  */
144 #define PRID_REV_ENCODE_44(ver, rev)                                    \
145         ((ver) << 4 | (rev))
146 #define PRID_REV_ENCODE_332(ver, rev, patch)                            \
147         ((ver) << 5 | (rev) << 2 | (patch))
148
149 /*
150  * FPU implementation/revision register (CP1 control register 0).
151  *
152  * +---------------------------------+----------------+----------------+
153  * | 0                               | Implementation | Revision       |
154  * +---------------------------------+----------------+----------------+
155  *  31                             16 15             8 7              0
156  */
157
158 #define FPIR_IMP_NONE           0x0000
159
160 enum cpu_type_enum {
161         CPU_UNKNOWN,
162
163         /*
164          * R2000 class processors
165          */
166         CPU_R2000, CPU_R3000, CPU_R3000A, CPU_R3041, CPU_R3051, CPU_R3052,
167         CPU_R3081, CPU_R3081E,
168
169         /*
170          * R6000 class processors
171          */
172         CPU_R6000, CPU_R6000A,
173
174         /*
175          * R4000 class processors
176          */
177         CPU_R4000PC, CPU_R4000SC, CPU_R4000MC, CPU_R4200, CPU_R4300, CPU_R4310,
178         CPU_R4400PC, CPU_R4400SC, CPU_R4400MC, CPU_R4600, CPU_R4640, CPU_R4650,
179         CPU_R4700, CPU_R5000, CPU_R5000A, CPU_R5500, CPU_NEVADA, CPU_R5432,
180         CPU_R10000, CPU_R12000, CPU_R14000, CPU_VR41XX, CPU_VR4111, CPU_VR4121,
181         CPU_VR4122, CPU_VR4131, CPU_VR4133, CPU_VR4181, CPU_VR4181A, CPU_RM7000,
182         CPU_SR71000, CPU_RM9000, CPU_TX49XX,
183
184         /*
185          * R8000 class processors
186          */
187         CPU_R8000,
188
189         /*
190          * TX3900 class processors
191          */
192         CPU_TX3912, CPU_TX3922, CPU_TX3927,
193
194         /*
195          * MIPS32 class processors
196          */
197         CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_74K, CPU_AU1000,
198         CPU_AU1100, CPU_AU1200, CPU_AU1210, CPU_AU1250, CPU_AU1500, CPU_AU1550,
199         CPU_PR4450, CPU_BCM3302, CPU_BCM4710,
200
201         /*
202          * MIPS64 class processors
203          */
204         CPU_5KC, CPU_20KC, CPU_25KF, CPU_SB1, CPU_SB1A, CPU_LOONGSON2,
205
206         CPU_LAST
207 };
208
209
210 /*
211  * ISA Level encodings
212  *
213  */
214 #define MIPS_CPU_ISA_I          0x00000001
215 #define MIPS_CPU_ISA_II         0x00000002
216 #define MIPS_CPU_ISA_III        0x00000004
217 #define MIPS_CPU_ISA_IV         0x00000008
218 #define MIPS_CPU_ISA_V          0x00000010
219 #define MIPS_CPU_ISA_M32R1      0x00000020
220 #define MIPS_CPU_ISA_M32R2      0x00000040
221 #define MIPS_CPU_ISA_M64R1      0x00000080
222 #define MIPS_CPU_ISA_M64R2      0x00000100
223
224 #define MIPS_CPU_ISA_32BIT (MIPS_CPU_ISA_I | MIPS_CPU_ISA_II | \
225         MIPS_CPU_ISA_M32R1 | MIPS_CPU_ISA_M32R2 )
226 #define MIPS_CPU_ISA_64BIT (MIPS_CPU_ISA_III | MIPS_CPU_ISA_IV | \
227         MIPS_CPU_ISA_V | MIPS_CPU_ISA_M64R1 | MIPS_CPU_ISA_M64R2)
228
229 /*
230  * CPU Option encodings
231  */
232 #define MIPS_CPU_TLB            0x00000001 /* CPU has TLB */
233 #define MIPS_CPU_4KEX           0x00000002 /* "R4K" exception model */
234 #define MIPS_CPU_3K_CACHE       0x00000004 /* R3000-style caches */
235 #define MIPS_CPU_4K_CACHE       0x00000008 /* R4000-style caches */
236 #define MIPS_CPU_TX39_CACHE     0x00000010 /* TX3900-style caches */
237 #define MIPS_CPU_FPU            0x00000020 /* CPU has FPU */
238 #define MIPS_CPU_32FPR          0x00000040 /* 32 dbl. prec. FP registers */
239 #define MIPS_CPU_COUNTER        0x00000080 /* Cycle count/compare */
240 #define MIPS_CPU_WATCH          0x00000100 /* watchpoint registers */
241 #define MIPS_CPU_DIVEC          0x00000200 /* dedicated interrupt vector */
242 #define MIPS_CPU_VCE            0x00000400 /* virt. coherence conflict possible */
243 #define MIPS_CPU_CACHE_CDEX_P   0x00000800 /* Create_Dirty_Exclusive CACHE op */
244 #define MIPS_CPU_CACHE_CDEX_S   0x00001000 /* ... same for seconary cache ... */
245 #define MIPS_CPU_MCHECK         0x00002000 /* Machine check exception */
246 #define MIPS_CPU_EJTAG          0x00004000 /* EJTAG exception */
247 #define MIPS_CPU_NOFPUEX        0x00008000 /* no FPU exception */
248 #define MIPS_CPU_LLSC           0x00010000 /* CPU has ll/sc instructions */
249 #define MIPS_CPU_INCLUSIVE_CACHES       0x00020000 /* P-cache subset enforced */
250 #define MIPS_CPU_PREFETCH       0x00040000 /* CPU has usable prefetch */
251 #define MIPS_CPU_VINT           0x00080000 /* CPU supports MIPSR2 vectored interrupts */
252 #define MIPS_CPU_VEIC           0x00100000 /* CPU supports MIPSR2 external interrupt controller mode */
253 #define MIPS_CPU_ULRI           0x00200000 /* CPU has ULRI feature */
254
255 /*
256  * CPU ASE encodings
257  */
258 #define MIPS_ASE_MIPS16         0x00000001 /* code compression */
259 #define MIPS_ASE_MDMX           0x00000002 /* MIPS digital media extension */
260 #define MIPS_ASE_MIPS3D         0x00000004 /* MIPS-3D */
261 #define MIPS_ASE_SMARTMIPS      0x00000008 /* SmartMIPS */
262 #define MIPS_ASE_DSP            0x00000010 /* Signal Processing ASE */
263 #define MIPS_ASE_MIPSMT         0x00000020 /* CPU supports MIPS MT */
264
265
266 #endif /* _ASM_CPU_H */