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699dbc90 RB |
1 | /* |
2 | * MT regs definitions, follows on from mipsregs.h | |
3 | * Copyright (C) 2004 - 2005 MIPS Technologies, Inc. All rights reserved. | |
4 | * Elizabeth Clarke et. al. | |
5 | * | |
6 | */ | |
7 | #ifndef _ASM_MIPSMTREGS_H | |
8 | #define _ASM_MIPSMTREGS_H | |
9 | ||
340ee4b9 | 10 | #include <asm/mipsregs.h> |
699dbc90 RB |
11 | #include <asm/war.h> |
12 | ||
13 | #ifndef __ASSEMBLY__ | |
14 | ||
15 | /* | |
16 | * C macros | |
17 | */ | |
18 | ||
19 | #define read_c0_mvpcontrol() __read_32bit_c0_register($0, 1) | |
20 | #define write_c0_mvpcontrol(val) __write_32bit_c0_register($0, 1, val) | |
21 | ||
22 | #define read_c0_mvpconf0() __read_32bit_c0_register($0, 2) | |
23 | #define read_c0_mvpconf1() __read_32bit_c0_register($0, 3) | |
24 | ||
25 | #define read_c0_vpecontrol() __read_32bit_c0_register($1, 1) | |
26 | #define write_c0_vpecontrol(val) __write_32bit_c0_register($1, 1, val) | |
27 | ||
28 | #define read_c0_vpeconf0() __read_32bit_c0_register($1, 2) | |
29 | #define write_c0_vpeconf0(val) __write_32bit_c0_register($1, 2, val) | |
30 | ||
31 | #define read_c0_tcstatus() __read_32bit_c0_register($2, 1) | |
32 | #define write_c0_tcstatus(val) __write_32bit_c0_register($2, 1, val) | |
33 | ||
34 | #define read_c0_tcbind() __read_32bit_c0_register($2, 2) | |
35 | ||
36 | #define read_c0_tccontext() __read_32bit_c0_register($2, 5) | |
37 | #define write_c0_tccontext(val) __write_32bit_c0_register($2, 5, val) | |
38 | ||
39 | #else /* Assembly */ | |
40 | /* | |
41 | * Macros for use in assembly language code | |
42 | */ | |
43 | ||
44 | #define CP0_MVPCONTROL $0,1 | |
45 | #define CP0_MVPCONF0 $0,2 | |
46 | #define CP0_MVPCONF1 $0,3 | |
47 | #define CP0_VPECONTROL $1,1 | |
48 | #define CP0_VPECONF0 $1,2 | |
49 | #define CP0_VPECONF1 $1,3 | |
50 | #define CP0_YQMASK $1,4 | |
51 | #define CP0_VPESCHEDULE $1,5 | |
52 | #define CP0_VPESCHEFBK $1,6 | |
53 | #define CP0_TCSTATUS $2,1 | |
54 | #define CP0_TCBIND $2,2 | |
55 | #define CP0_TCRESTART $2,3 | |
56 | #define CP0_TCHALT $2,4 | |
57 | #define CP0_TCCONTEXT $2,5 | |
58 | #define CP0_TCSCHEDULE $2,6 | |
59 | #define CP0_TCSCHEFBK $2,7 | |
60 | #define CP0_SRSCONF0 $6,1 | |
61 | #define CP0_SRSCONF1 $6,2 | |
62 | #define CP0_SRSCONF2 $6,3 | |
63 | #define CP0_SRSCONF3 $6,4 | |
64 | #define CP0_SRSCONF4 $6,5 | |
65 | ||
66 | #endif | |
67 | ||
68 | /* MVPControl fields */ | |
69 | #define MVPCONTROL_EVP (_ULCAST_(1)) | |
70 | ||
71 | #define MVPCONTROL_VPC_SHIFT 1 | |
72 | #define MVPCONTROL_VPC (_ULCAST_(1) << MVPCONTROL_VPC_SHIFT) | |
73 | ||
74 | #define MVPCONTROL_STLB_SHIFT 2 | |
75 | #define MVPCONTROL_STLB (_ULCAST_(1) << MVPCONTROL_STLB_SHIFT) | |
76 | ||
77 | ||
78 | /* MVPConf0 fields */ | |
79 | #define MVPCONF0_PTC_SHIFT 0 | |
80 | #define MVPCONF0_PTC ( _ULCAST_(0xff)) | |
81 | #define MVPCONF0_PVPE_SHIFT 10 | |
82 | #define MVPCONF0_PVPE ( _ULCAST_(0xf) << MVPCONF0_PVPE_SHIFT) | |
83 | #define MVPCONF0_TCA_SHIFT 15 | |
84 | #define MVPCONF0_TCA ( _ULCAST_(1) << MVPCONF0_TCA_SHIFT) | |
85 | #define MVPCONF0_PTLBE_SHIFT 16 | |
86 | #define MVPCONF0_PTLBE (_ULCAST_(0x3ff) << MVPCONF0_PTLBE_SHIFT) | |
87 | #define MVPCONF0_TLBS_SHIFT 29 | |
88 | #define MVPCONF0_TLBS (_ULCAST_(1) << MVPCONF0_TLBS_SHIFT) | |
89 | #define MVPCONF0_M_SHIFT 31 | |
90 | #define MVPCONF0_M (_ULCAST_(0x1) << MVPCONF0_M_SHIFT) | |
91 | ||
92 | ||
93 | /* config3 fields */ | |
94 | #define CONFIG3_MT_SHIFT 2 | |
95 | #define CONFIG3_MT (_ULCAST_(1) << CONFIG3_MT_SHIFT) | |
96 | ||
97 | ||
98 | /* VPEControl fields (per VPE) */ | |
99 | #define VPECONTROL_TARGTC (_ULCAST_(0xff)) | |
100 | ||
101 | #define VPECONTROL_TE_SHIFT 15 | |
102 | #define VPECONTROL_TE (_ULCAST_(1) << VPECONTROL_TE_SHIFT) | |
103 | #define VPECONTROL_EXCPT_SHIFT 16 | |
104 | #define VPECONTROL_EXCPT (_ULCAST_(0x7) << VPECONTROL_EXCPT_SHIFT) | |
105 | ||
106 | /* Thread Exception Codes for EXCPT field */ | |
107 | #define THREX_TU 0 | |
108 | #define THREX_TO 1 | |
109 | #define THREX_IYQ 2 | |
110 | #define THREX_GSX 3 | |
111 | #define THREX_YSCH 4 | |
112 | #define THREX_GSSCH 5 | |
113 | ||
114 | #define VPECONTROL_GSI_SHIFT 20 | |
115 | #define VPECONTROL_GSI (_ULCAST_(1) << VPECONTROL_GSI_SHIFT) | |
116 | #define VPECONTROL_YSI_SHIFT 21 | |
117 | #define VPECONTROL_YSI (_ULCAST_(1) << VPECONTROL_YSI_SHIFT) | |
118 | ||
119 | /* VPEConf0 fields (per VPE) */ | |
120 | #define VPECONF0_VPA_SHIFT 0 | |
121 | #define VPECONF0_VPA (_ULCAST_(1) << VPECONF0_VPA_SHIFT) | |
122 | #define VPECONF0_MVP_SHIFT 1 | |
123 | #define VPECONF0_MVP (_ULCAST_(1) << VPECONF0_MVP_SHIFT) | |
124 | #define VPECONF0_XTC_SHIFT 21 | |
125 | #define VPECONF0_XTC (_ULCAST_(0xff) << VPECONF0_XTC_SHIFT) | |
126 | ||
127 | /* TCStatus fields (per TC) */ | |
128 | #define TCSTATUS_TASID (_ULCAST_(0xff)) | |
129 | #define TCSTATUS_IXMT_SHIFT 10 | |
130 | #define TCSTATUS_IXMT (_ULCAST_(1) << TCSTATUS_IXMT_SHIFT) | |
131 | #define TCSTATUS_TKSU_SHIFT 11 | |
132 | #define TCSTATUS_TKSU (_ULCAST_(3) << TCSTATUS_TKSU_SHIFT) | |
133 | #define TCSTATUS_A_SHIFT 13 | |
134 | #define TCSTATUS_A (_ULCAST_(1) << TCSTATUS_A_SHIFT) | |
135 | #define TCSTATUS_DA_SHIFT 15 | |
136 | #define TCSTATUS_DA (_ULCAST_(1) << TCSTATUS_DA_SHIFT) | |
137 | #define TCSTATUS_DT_SHIFT 20 | |
138 | #define TCSTATUS_DT (_ULCAST_(1) << TCSTATUS_DT_SHIFT) | |
139 | #define TCSTATUS_TDS_SHIFT 21 | |
140 | #define TCSTATUS_TDS (_ULCAST_(1) << TCSTATUS_TDS_SHIFT) | |
141 | #define TCSTATUS_TSST_SHIFT 22 | |
142 | #define TCSTATUS_TSST (_ULCAST_(1) << TCSTATUS_TSST_SHIFT) | |
143 | #define TCSTATUS_RNST_SHIFT 23 | |
144 | #define TCSTATUS_RNST (_ULCAST_(3) << TCSTATUS_RNST_SHIFT) | |
145 | /* Codes for RNST */ | |
146 | #define TC_RUNNING 0 | |
147 | #define TC_WAITING 1 | |
148 | #define TC_YIELDING 2 | |
149 | #define TC_GATED 3 | |
150 | ||
151 | #define TCSTATUS_TMX_SHIFT 27 | |
152 | #define TCSTATUS_TMX (_ULCAST_(1) << TCSTATUS_TMX_SHIFT) | |
153 | /* TCStatus TCU bits can use same definitions/offsets as CU bits in Status */ | |
154 | ||
155 | /* TCBind */ | |
156 | #define TCBIND_CURVPE_SHIFT 0 | |
157 | #define TCBIND_CURVPE (_ULCAST_(0xf)) | |
158 | ||
159 | #define TCBIND_CURTC_SHIFT 21 | |
160 | ||
161 | #define TCBIND_CURTC (_ULCAST_(0xff) << TCBIND_CURTC_SHIFT) | |
162 | ||
163 | /* TCHalt */ | |
164 | #define TCHALT_H (_ULCAST_(1)) | |
165 | ||
166 | #ifndef __ASSEMBLY__ | |
167 | ||
699dbc90 RB |
168 | static inline unsigned int dvpe(void) |
169 | { | |
170 | int res = 0; | |
171 | ||
172 | __asm__ __volatile__( | |
173 | " .set push \n" | |
174 | " .set noreorder \n" | |
175 | " .set noat \n" | |
176 | " .set mips32r2 \n" | |
699dbc90 | 177 | " .word 0x41610001 # dvpe $1 \n" |
8f40611d | 178 | " move %0, $1 \n" |
699dbc90 RB |
179 | " ehb \n" |
180 | " .set pop \n" | |
181 | : "=r" (res)); | |
182 | ||
183 | instruction_hazard(); | |
184 | ||
185 | return res; | |
186 | } | |
187 | ||
188 | static inline void __raw_evpe(void) | |
189 | { | |
190 | __asm__ __volatile__( | |
191 | " .set push \n" | |
192 | " .set noreorder \n" | |
193 | " .set noat \n" | |
194 | " .set mips32r2 \n" | |
195 | " .word 0x41600021 # evpe \n" | |
196 | " ehb \n" | |
197 | " .set pop \n"); | |
198 | } | |
199 | ||
200 | /* Enable multiMT if previous suggested it should be. | |
201 | EMT_ENABLE to force */ | |
202 | ||
203 | #define EVPE_ENABLE MVPCONTROL_EVP | |
204 | ||
205 | static inline void evpe(int previous) | |
206 | { | |
207 | if ((previous & MVPCONTROL_EVP)) | |
208 | __raw_evpe(); | |
209 | } | |
210 | ||
211 | static inline unsigned int dmt(void) | |
212 | { | |
213 | int res; | |
214 | ||
215 | __asm__ __volatile__( | |
8f40611d | 216 | " .set push \n" |
699dbc90 | 217 | " .set mips32r2 \n" |
8f40611d RB |
218 | " .set noat \n" |
219 | " .word 0x41610BC1 # dmt $1 \n" | |
699dbc90 | 220 | " ehb \n" |
8f40611d RB |
221 | " move %0, $1 \n" |
222 | " .set pop \n" | |
699dbc90 RB |
223 | : "=r" (res)); |
224 | ||
225 | instruction_hazard(); | |
226 | ||
227 | return res; | |
228 | } | |
229 | ||
230 | static inline void __raw_emt(void) | |
231 | { | |
232 | __asm__ __volatile__( | |
233 | " .set noreorder \n" | |
234 | " .set mips32r2 \n" | |
2600990e | 235 | " .word 0x41600be1 # emt \n" |
699dbc90 RB |
236 | " ehb \n" |
237 | " .set mips0 \n" | |
238 | " .set reorder"); | |
239 | } | |
240 | ||
241 | /* enable multiVPE if previous suggested it should be. | |
242 | EVPE_ENABLE to force */ | |
243 | ||
244 | #define EMT_ENABLE VPECONTROL_TE | |
245 | ||
246 | static inline void emt(int previous) | |
247 | { | |
248 | if ((previous & EMT_ENABLE)) | |
249 | __raw_emt(); | |
250 | } | |
251 | ||
252 | static inline void ehb(void) | |
253 | { | |
8f40611d RB |
254 | __asm__ __volatile__( |
255 | " .set mips32r2 \n" | |
256 | " ehb \n" | |
257 | " .set mips0 \n"); | |
699dbc90 RB |
258 | } |
259 | ||
260 | #define mftc0(rt,sel) \ | |
261 | ({ \ | |
262 | unsigned long __res; \ | |
263 | \ | |
264 | __asm__ __volatile__( \ | |
8f40611d RB |
265 | " .set push \n" \ |
266 | " .set mips32r2 \n" \ | |
267 | " .set noat \n" \ | |
268 | " # mftc0 $1, $" #rt ", " #sel " \n" \ | |
269 | " .word 0x41000800 | (" #rt " << 16) | " #sel " \n" \ | |
270 | " move %0, $1 \n" \ | |
271 | " .set pop \n" \ | |
272 | : "=r" (__res)); \ | |
699dbc90 RB |
273 | \ |
274 | __res; \ | |
275 | }) | |
276 | ||
277 | #define mftgpr(rt) \ | |
278 | ({ \ | |
279 | unsigned long __res; \ | |
280 | \ | |
281 | __asm__ __volatile__( \ | |
8f40611d | 282 | " .set push \n" \ |
41c594ab | 283 | " .set noat \n" \ |
8f40611d | 284 | " .set mips32r2 \n" \ |
41c594ab RB |
285 | " # mftgpr $1," #rt " \n" \ |
286 | " .word 0x41000820 | (" #rt " << 16) \n" \ | |
287 | " move %0, $1 \n" \ | |
8f40611d | 288 | " .set pop \n" \ |
699dbc90 RB |
289 | : "=r" (__res)); \ |
290 | \ | |
291 | __res; \ | |
292 | }) | |
293 | ||
294 | #define mftr(rt,u,sel) \ | |
295 | ({ \ | |
296 | unsigned long __res; \ | |
297 | \ | |
298 | __asm__ __volatile__( \ | |
41c594ab | 299 | " mftr %0, " #rt ", " #u ", " #sel " \n" \ |
699dbc90 RB |
300 | : "=r" (__res)); \ |
301 | \ | |
302 | __res; \ | |
303 | }) | |
304 | ||
305 | #define mttgpr(rd,v) \ | |
8f40611d | 306 | do { \ |
699dbc90 | 307 | __asm__ __volatile__( \ |
8f40611d RB |
308 | " .set push \n" \ |
309 | " .set mips32r2 \n" \ | |
310 | " .set noat \n" \ | |
311 | " move $1, %0 \n" \ | |
312 | " # mttgpr $1, " #rd " \n" \ | |
313 | " .word 0x41810020 | (" #rd " << 11) \n" \ | |
314 | " .set pop \n" \ | |
699dbc90 | 315 | : : "r" (v)); \ |
8f40611d | 316 | } while (0) |
699dbc90 RB |
317 | |
318 | #define mttc0(rd,sel,v) \ | |
319 | ({ \ | |
320 | __asm__ __volatile__( \ | |
8f40611d RB |
321 | " .set push \n" \ |
322 | " .set mips32r2 \n" \ | |
323 | " .set noat \n" \ | |
324 | " move $1, %0 \n" \ | |
325 | " # mttc0 %0," #rd ", " #sel " \n" \ | |
326 | " .word 0x41810000 | (" #rd " << 11) | " #sel " \n" \ | |
327 | " .set pop \n" \ | |
328 | : \ | |
329 | : "r" (v)); \ | |
699dbc90 RB |
330 | }) |
331 | ||
332 | ||
333 | #define mttr(rd,u,sel,v) \ | |
334 | ({ \ | |
335 | __asm__ __volatile__( \ | |
336 | "mttr %0," #rd ", " #u ", " #sel \ | |
337 | : : "r" (v)); \ | |
338 | }) | |
339 | ||
340 | ||
341 | #define settc(tc) \ | |
342 | do { \ | |
343 | write_c0_vpecontrol((read_c0_vpecontrol()&~VPECONTROL_TARGTC) | (tc)); \ | |
344 | ehb(); \ | |
345 | } while (0) | |
346 | ||
347 | ||
348 | /* you *must* set the target tc (settc) before trying to use these */ | |
8f40611d RB |
349 | #define read_vpe_c0_vpecontrol() mftc0(1, 1) |
350 | #define write_vpe_c0_vpecontrol(val) mttc0(1, 1, val) | |
351 | #define read_vpe_c0_vpeconf0() mftc0(1, 2) | |
352 | #define write_vpe_c0_vpeconf0(val) mttc0(1, 2, val) | |
70e46f48 RB |
353 | #define read_vpe_c0_count() mftc0(9, 0) |
354 | #define write_vpe_c0_count(val) mttc0(9, 0, val) | |
8f40611d RB |
355 | #define read_vpe_c0_status() mftc0(12, 0) |
356 | #define write_vpe_c0_status(val) mttc0(12, 0, val) | |
357 | #define read_vpe_c0_cause() mftc0(13, 0) | |
358 | #define write_vpe_c0_cause(val) mttc0(13, 0, val) | |
359 | #define read_vpe_c0_config() mftc0(16, 0) | |
360 | #define write_vpe_c0_config(val) mttc0(16, 0, val) | |
361 | #define read_vpe_c0_config1() mftc0(16, 1) | |
362 | #define write_vpe_c0_config1(val) mttc0(16, 1, val) | |
363 | #define read_vpe_c0_config7() mftc0(16, 7) | |
364 | #define write_vpe_c0_config7(val) mttc0(16, 7, val) | |
365 | #define read_vpe_c0_ebase() mftc0(15,1) | |
366 | #define write_vpe_c0_ebase(val) mttc0(15, 1, val) | |
367 | #define write_vpe_c0_compare(val) mttc0(11, 0, val) | |
2600990e RB |
368 | #define read_vpe_c0_badvaddr() mftc0(8, 0) |
369 | #define read_vpe_c0_epc() mftc0(14, 0) | |
370 | #define write_vpe_c0_epc(val) mttc0(14, 0, val) | |
699dbc90 RB |
371 | |
372 | ||
373 | /* TC */ | |
8f40611d RB |
374 | #define read_tc_c0_tcstatus() mftc0(2, 1) |
375 | #define write_tc_c0_tcstatus(val) mttc0(2,1,val) | |
376 | #define read_tc_c0_tcbind() mftc0(2, 2) | |
377 | #define write_tc_c0_tcbind(val) mttc0(2,2,val) | |
378 | #define read_tc_c0_tcrestart() mftc0(2, 3) | |
379 | #define write_tc_c0_tcrestart(val) mttc0(2,3,val) | |
380 | #define read_tc_c0_tchalt() mftc0(2, 4) | |
381 | #define write_tc_c0_tchalt(val) mttc0(2,4,val) | |
382 | #define read_tc_c0_tccontext() mftc0(2, 5) | |
383 | #define write_tc_c0_tccontext(val) mttc0(2,5,val) | |
699dbc90 RB |
384 | |
385 | /* GPR */ | |
8f40611d RB |
386 | #define read_tc_gpr_sp() mftgpr(29) |
387 | #define write_tc_gpr_sp(val) mttgpr(29, val) | |
388 | #define read_tc_gpr_gp() mftgpr(28) | |
389 | #define write_tc_gpr_gp(val) mttgpr(28, val) | |
699dbc90 | 390 | |
340ee4b9 | 391 | __BUILD_SET_C0(mvpcontrol) |
699dbc90 RB |
392 | |
393 | #endif /* Not __ASSEMBLY__ */ | |
394 | ||
395 | #endif |