1/*
2 * Copyright (c) 2007 MIPS Technologies, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Jaidev Patwardhan
29 */
30
31#ifndef __ARCH_MIPS_PRA_CONSTANTS_HH__
32#define __ARCH_MIPS_PRA_CONSTANTS_HH__
33
34#include "arch/mips/types.hh"
35#include "base/bitunion.hh"
36
37namespace MipsISA
38{
39
40BitUnion32(IndexReg)
41    Bitfield<31> p;
42    // Need to figure out how to put in the TLB specific bits here
43    // For now, we assume that the entire length is used by the index
44    // field In reality, Index_HI = N-1, where
45    // N = Ceiling(log2(TLB Entries))
46    Bitfield<30, 0> index;
47EndBitUnion(IndexReg)
48
49BitUnion32(RandomReg)
50    // This has a problem similar to the IndexReg index field. We'll keep
51    // both consistent at 30 for now
52    Bitfield<30, 0> random;
53EndBitUnion(RandomReg)
54
55BitUnion64(EntryLoReg)
56    Bitfield<63, 30> fill;
57    Bitfield<29, 6>  pfn;   // Page frame number
58    Bitfield<5,  3>  c;     // Coherency attribute
59    Bitfield<2>      d;     // Dirty Bit
60    Bitfield<1>      v;     // Valid Bit
61    Bitfield<0>      g;     // Global Bit
62EndBitUnion(EntryLoReg)
63
64BitUnion64(ContextReg)
65    Bitfield<63, 23> pteBase;
66    Bitfield<22, 4>  badVPN2;
67    // Bits 3-0 are 0
68EndBitUnion(ContextReg)
69
70BitUnion32(PageMaskReg)
71    // Bits 31-29 are 0
72    Bitfield<28, 13> mask;
73    Bitfield<12, 11> maskx;
74    // Bits 10-0 are zero
75EndBitUnion(PageMaskReg)
76
77BitUnion32(PageGrainReg)
78    Bitfield<31, 30> aseUp;
79    Bitfield<29>     elpa;
80    Bitfield<28>     esp;
81    // Bits 27-13 are zeros
82    Bitfield<12, 8>  aseDn;
83    // Bits 7-0 are zeros
84EndBitUnion(PageGrainReg)
85
86BitUnion32(WiredReg)
87    // See note on Index register above
88    Bitfield<30, 0> wired;
89EndBitUnion(WiredReg)
90
91BitUnion32(HWREnaReg)
92    Bitfield<31, 30> impl;
93    Bitfield<3,  0>  mask;
94EndBitUnion(HWREnaReg)
95
96BitUnion64(EntryHiReg)
97    Bitfield<63, 62> r;
98    Bitfield<61, 40> fill;
99    Bitfield<39, 13> vpn2;
100    Bitfield<12, 11> vpn2x;
101    Bitfield<7,  0>  asid;
102EndBitUnion(EntryHiReg)
103
104BitUnion32(StatusReg)
105    SubBitUnion(cu, 31, 28)
106        Bitfield<31> cu3;
107        Bitfield<30> cu2;
108        Bitfield<29> cu1;
109        Bitfield<28> cu0;
110    EndSubBitUnion(cu)
111    Bitfield<27>     rp;
112    Bitfield<26>     fr;
113    Bitfield<25>     re;
114    Bitfield<24>     mx;
115    Bitfield<23>     px;
116    Bitfield<22>     bev;
117    Bitfield<21>     ts;
118    Bitfield<20>     sr;
119    Bitfield<19>     nmi;
120    // Bit 18 is zero
121    Bitfield<17, 16> impl;
122    Bitfield<15, 10> ipl;
123    SubBitUnion(im, 15, 8)
124        Bitfield<15> im7;
125        Bitfield<14> im6;
126        Bitfield<13> im5;
127        Bitfield<12> im4;
128        Bitfield<11> im3;
129        Bitfield<10> im2;
130        Bitfield<9>  im1;
131        Bitfield<8>  im0;
132    EndSubBitUnion(im)
133    Bitfield<7>      kx;
134    Bitfield<6>      sx;
135    Bitfield<5>      ux;
136    Bitfield<4,  3>  ksu;
137    Bitfield<4>      um;
138    Bitfield<3>      r0;
139    Bitfield<2>      erl;
140    Bitfield<1>      exl;
141    Bitfield<0>      ie;
142EndBitUnion(StatusReg)
143
144BitUnion32(IntCtlReg)
145    Bitfield<31, 29> ipti;
146    Bitfield<28, 26> ippci;
147    // Bits 26-10 are zeros
148    Bitfield<9,  5>  vs;
149    // Bits 4-0 are zeros
150EndBitUnion(IntCtlReg)
151
152BitUnion32(SRSCtlReg)
153    // Bits 31-30 are zeros
154    Bitfield<29, 26> hss;
155    // Bits 25-22 are zeros
156    Bitfield<21, 18> eicss;
157    // Bits 17-16 are zeros
158    Bitfield<15, 12> ess;
159    // Bits 11-10 are zeros
160    Bitfield<9,  6>  pss;
161    // Bits 5-4 are zeros
162    Bitfield<3,  0>  css;
163EndBitUnion(SRSCtlReg)
164
165BitUnion32(SRSMapReg)
166    Bitfield<31, 28> ssv7;
167    Bitfield<27, 24> ssv6;
168    Bitfield<23, 20> ssv5;
169    Bitfield<19, 16> ssv4;
170    Bitfield<15, 12> ssv3;
171    Bitfield<11, 8>  ssv2;
172    Bitfield<7,  4>  ssv1;
173    Bitfield<3,  0>  ssv0;
174EndBitUnion(SRSMapReg)
175
176BitUnion32(CauseReg)
177    Bitfield<31>     bd;
178    Bitfield<30>     ti;
179    Bitfield<29, 28> ce;
180    Bitfield<27>     dc;
181    Bitfield<26>     pci;
182    // Bits 25-24 are zeros
183    Bitfield<23>     iv;
184    Bitfield<22>     wp;
185    // Bits 21-16 are zeros
186    Bitfield<15, 10> ripl;
187    SubBitUnion(ip, 15, 8)
188        Bitfield<15> ip7;
189        Bitfield<14> ip6;
190        Bitfield<13> ip5;
191        Bitfield<12> ip4;
192        Bitfield<11> ip3;
193        Bitfield<10> ip2;
194        Bitfield<9>  ip1;
195        Bitfield<8>  ip0;
196    EndSubBitUnion(ip);
197    // Bit 7 is zero
198    Bitfield<6,  2>  excCode;
199    // Bits 1-0 are zeros
200EndBitUnion(CauseReg)
201
202BitUnion32(PRIdReg)
203    Bitfield<31, 24> coOp;
204    Bitfield<23, 16> coId;
205    Bitfield<15, 8>  procId;
206    Bitfield<7,  0>  rev;
207EndBitUnion(PRIdReg)
208
209BitUnion32(EBaseReg)
210    // Bit 31 is one
211    // Bit 30 is zero
212    Bitfield<29, 12> exceptionBase;
213    // Bits 11-10 are zeros
214    Bitfield<9,  9>  cpuNum;
215EndBitUnion(EBaseReg)
216
217BitUnion32(ConfigReg)
218    Bitfield<31>     m;
219    Bitfield<30, 28> k23;
220    Bitfield<27, 25> ku;
221    Bitfield<24, 16> impl;
222    Bitfield<15>     be;
223    Bitfield<14, 13> at;
224    Bitfield<12, 10> ar;
225    Bitfield<9,  7>  mt;
226    // Bits 6-4 are zeros
227    Bitfield<3>      vi;
228    Bitfield<2,  0>  k0;
229EndBitUnion(ConfigReg)
230
231BitUnion32(Config1Reg)
232    Bitfield<31>     m;
233    Bitfield<30, 25> mmuSize;
234    Bitfield<24, 22> is;
235    Bitfield<21, 19> il;
236    Bitfield<18, 16> ia;
237    Bitfield<15, 13> ds;
238    Bitfield<12, 10> dl;
239    Bitfield<9,  7>  da;
240    Bitfield<6>      c2;
241    Bitfield<5>      md;
242    Bitfield<4>      pc;
243    Bitfield<3>      wr;
244    Bitfield<2>      ca;
245    Bitfield<1>      ep;
246    Bitfield<0>      fp;
247EndBitUnion(Config1Reg)
248
249BitUnion32(Config2Reg)
250    Bitfield<31>     m;
251    Bitfield<30, 28> tu;
252    Bitfield<27, 24> ts;
253    Bitfield<23, 20> tl;
254    Bitfield<19, 16> ta;
255    Bitfield<15, 12> su;
256    Bitfield<11, 8>  ss;
257    Bitfield<7,  4>  sl;
258    Bitfield<3,  0>  sa;
259EndBitUnion(Config2Reg)
260
261BitUnion32(Config3Reg)
262    Bitfield<31> m;
263    // Bits 30-11 are zeros
264    Bitfield<10> dspp;
265    // Bits 9-8 are zeros
266    Bitfield<7>  lpa;
267    Bitfield<6>  veic;
268    Bitfield<5>  vint;
269    Bitfield<4>  sp;
270    // Bit 3 is zero
271    Bitfield<2>  mt;
272    Bitfield<1>  sm;
273    Bitfield<0>  tl;
274EndBitUnion(Config3Reg)
275
276BitUnion64(WatchLoReg)
277    Bitfield<63, 3> vaddr;
278    Bitfield<2>     i;
279    Bitfield<1>     r;
280    Bitfield<0>     w;
281EndBitUnion(WatchLoReg)
282
283BitUnion32(WatchHiReg)
284    Bitfield<31>     m;
285    Bitfield<30>     g;
286    // Bits 29-24 are zeros
287    Bitfield<23, 16> asid;
288    // Bits 15-12 are zeros
289    Bitfield<11, 3>  mask;
290    Bitfield<2>      i;
291    Bitfield<1>      r;
292    Bitfield<0>      w;
293EndBitUnion(WatchHiReg)
294
295BitUnion32(PerfCntCtlReg)
296    Bitfield<31>    m;
297    Bitfield<30>    w;
298    // Bits 29-11 are zeros
299    Bitfield<10, 5> event;
300    Bitfield<4>     ie;
301    Bitfield<3>     u;
302    Bitfield<2>     s;
303    Bitfield<1>     k;
304    Bitfield<0>     exl;
305EndBitUnion(PerfCntCtlReg)
306
307BitUnion32(CacheErrReg)
308    Bitfield<31>     er;
309    Bitfield<30>     ec;
310    Bitfield<29>     ed;
311    Bitfield<28>     et;
312    Bitfield<27>     es;
313    Bitfield<26>     ee;
314    Bitfield<25>     eb;
315    Bitfield<24, 22> impl;
316    Bitfield<22, 0>  index;
317EndBitUnion(CacheErrReg)
318
319BitUnion32(TagLoReg)
320    Bitfield<31, 8> pTagLo;
321    Bitfield<7,  6> pState;
322    Bitfield<5>     l;
323    Bitfield<4,  3> impl;
324    // Bits 2-1 are zeros
325    Bitfield<0>     p;
326EndBitUnion(TagLoReg)
327
328} // namespace MipsISA
329
330#endif
331