xref: /titanic_41/usr/src/uts/sparc/v9/sys/privregs.h (revision 78b6ed601aa3a251030edda42ce9770e9c21567a)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef _SYS_PRIVREGS_H
28 #define	_SYS_PRIVREGS_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI" /* from SunOS psl.h 1.2 */
31 
32 #ifdef	__cplusplus
33 extern "C" {
34 #endif
35 
36 /*
37  * This file is kernel isa dependent.
38  */
39 
40 #include <sys/fsr.h>
41 #include <v9/sys/asi.h>
42 
43 /*
44  * This file describes the cpu's privileged register set, and
45  * how the machine state is saved on the stack when a trap occurs.
46  */
47 
48 #ifndef	_ASM
49 
50 struct regs {
51 	long long	r_tstate;
52 	long long	r_g1;		/* user global regs */
53 	long long	r_g2;
54 	long long	r_g3;
55 	long long	r_g4;
56 	long long	r_g5;
57 	long long	r_g6;
58 	long long	r_g7;
59 	long long	r_o0;
60 	long long	r_o1;
61 	long long	r_o2;
62 	long long	r_o3;
63 	long long	r_o4;
64 	long long	r_o5;
65 	long long	r_o6;
66 	long long	r_o7;
67 	/*
68 	 * These are still 32b in 4u's v8/v9 hybrid
69 	 */
70 	long	r_pc;		/* program counter */
71 	long	r_npc;		/* next program counter */
72 	int	r_y;		/* the y register */
73 };
74 
75 #define	r_ps	r_tstate
76 #define	r_sp	r_o6
77 
78 #endif	/* _ASM */
79 
80 #ifdef _KERNEL
81 
82 #define	lwptoregs(lwp)	((struct regs *)((lwp)->lwp_regs))
83 #define	lwptofpu(lwp)	((kfpu_t *)((lwp)->lwp_fpu))
84 
85 /*
86  * Macros for saving/restoring registers.
87  */
88 
89 #define	SAVE_GLOBALS(RP) \
90 	stx	%g1, [RP + G1_OFF]; \
91 	stx	%g2, [RP + G2_OFF]; \
92 	stx	%g3, [RP + G3_OFF]; \
93 	stx	%g4, [RP + G4_OFF]; \
94 	stx	%g5, [RP + G5_OFF]; \
95 	stx	%g6, [RP + G6_OFF]; \
96 	stx	%g7, [RP + G7_OFF]; \
97 	mov	%y, %g1; \
98 	st	%g1, [RP + Y_OFF];
99 
100 #define	RESTORE_GLOBALS(RP) \
101 	ld	[RP + Y_OFF], %g1; \
102 	mov	%g1, %y; \
103 	ldx	[RP + G1_OFF], %g1; \
104 	ldx	[RP + G2_OFF], %g2; \
105 	ldx	[RP + G3_OFF], %g3; \
106 	ldx	[RP + G4_OFF], %g4; \
107 	ldx	[RP + G5_OFF], %g5; \
108 	ldx	[RP + G6_OFF], %g6; \
109 	ldx	[RP + G7_OFF], %g7;
110 
111 #define	SAVE_OUTS(RP) \
112 	stx	%i0, [RP + O0_OFF]; \
113 	stx	%i1, [RP + O1_OFF]; \
114 	stx	%i2, [RP + O2_OFF]; \
115 	stx	%i3, [RP + O3_OFF]; \
116 	stx	%i4, [RP + O4_OFF]; \
117 	stx	%i5, [RP + O5_OFF]; \
118 	stx	%i6, [RP + O6_OFF]; \
119 	stx	%i7, [RP + O7_OFF];
120 
121 #define	RESTORE_OUTS(RP) \
122 	ldx	[RP + O0_OFF], %i0; \
123 	ldx	[RP + O1_OFF], %i1; \
124 	ldx	[RP + O2_OFF], %i2; \
125 	ldx	[RP + O3_OFF], %i3; \
126 	ldx	[RP + O4_OFF], %i4; \
127 	ldx	[RP + O5_OFF], %i5; \
128 	ldx	[RP + O6_OFF], %i6; \
129 	ldx	[RP + O7_OFF], %i7;
130 
131 #define	SAVE_V8WINDOW(SBP) \
132 	st	%l0, [SBP + (0*4)]; \
133 	st	%l1, [SBP + (1*4)]; \
134 	st	%l2, [SBP + (2*4)]; \
135 	st	%l3, [SBP + (3*4)]; \
136 	st	%l4, [SBP + (4*4)]; \
137 	st	%l5, [SBP + (5*4)]; \
138 	st	%l6, [SBP + (6*4)]; \
139 	st	%l7, [SBP + (7*4)]; \
140 	st	%i0, [SBP + (8*4)]; \
141 	st	%i1, [SBP + (9*4)]; \
142 	st	%i2, [SBP + (10*4)]; \
143 	st	%i3, [SBP + (11*4)]; \
144 	st	%i4, [SBP + (12*4)]; \
145 	st	%i5, [SBP + (13*4)]; \
146 	st	%i6, [SBP + (14*4)]; \
147 	st	%i7, [SBP + (15*4)];
148 
149 #define	SAVE_V8WINDOW_ASI(SBP) \
150 	sta	%l0, [SBP + (0*4)]%asi; \
151 	sta	%l1, [SBP + (1*4)]%asi; \
152 	sta	%l2, [SBP + (2*4)]%asi; \
153 	sta	%l3, [SBP + (3*4)]%asi; \
154 	sta	%l4, [SBP + (4*4)]%asi; \
155 	sta	%l5, [SBP + (5*4)]%asi; \
156 	sta	%l6, [SBP + (6*4)]%asi; \
157 	sta	%l7, [SBP + (7*4)]%asi; \
158 	sta	%i0, [SBP + (8*4)]%asi; \
159 	sta	%i1, [SBP + (9*4)]%asi; \
160 	sta	%i2, [SBP + (10*4)]%asi; \
161 	sta	%i3, [SBP + (11*4)]%asi; \
162 	sta	%i4, [SBP + (12*4)]%asi; \
163 	sta	%i5, [SBP + (13*4)]%asi; \
164 	sta	%i6, [SBP + (14*4)]%asi; \
165 	sta	%i7, [SBP + (15*4)]%asi;
166 
167 #define	RESTORE_V8WINDOW(SBP) \
168 	ld	[SBP + (0*4)], %l0; \
169 	ld	[SBP + (1*4)], %l1; \
170 	ld	[SBP + (2*4)], %l2; \
171 	ld	[SBP + (3*4)], %l3; \
172 	ld	[SBP + (4*4)], %l4; \
173 	ld	[SBP + (5*4)], %l5; \
174 	ld	[SBP + (6*4)], %l6; \
175 	ld	[SBP + (7*4)], %l7; \
176 	ld	[SBP + (8*4)], %i0; \
177 	ld	[SBP + (9*4)], %i1; \
178 	ld	[SBP + (10*4)], %i2; \
179 	ld	[SBP + (11*4)], %i3; \
180 	ld	[SBP + (12*4)], %i4; \
181 	ld	[SBP + (13*4)], %i5; \
182 	ld	[SBP + (14*4)], %i6; \
183 	ld	[SBP + (15*4)], %i7;
184 
185 #define	SAVE_V9WINDOW(SBP) \
186 	stx	%l0, [SBP + (0*8)]; \
187 	stx	%l1, [SBP + (1*8)]; \
188 	stx	%l2, [SBP + (2*8)]; \
189 	stx	%l3, [SBP + (3*8)]; \
190 	stx	%l4, [SBP + (4*8)]; \
191 	stx	%l5, [SBP + (5*8)]; \
192 	stx	%l6, [SBP + (6*8)]; \
193 	stx	%l7, [SBP + (7*8)]; \
194 	stx	%i0, [SBP + (8*8)]; \
195 	stx	%i1, [SBP + (9*8)]; \
196 	stx	%i2, [SBP + (10*8)]; \
197 	stx	%i3, [SBP + (11*8)]; \
198 	stx	%i4, [SBP + (12*8)]; \
199 	stx	%i5, [SBP + (13*8)]; \
200 	stx	%i6, [SBP + (14*8)]; \
201 	stx	%i7, [SBP + (15*8)];
202 
203 #define	SAVE_V9WINDOW_ASI(SBP) \
204 	stxa	%l0, [SBP + (0*8)]%asi; \
205 	stxa	%l1, [SBP + (1*8)]%asi; \
206 	stxa	%l2, [SBP + (2*8)]%asi; \
207 	stxa	%l3, [SBP + (3*8)]%asi; \
208 	stxa	%l4, [SBP + (4*8)]%asi; \
209 	stxa	%l5, [SBP + (5*8)]%asi; \
210 	stxa	%l6, [SBP + (6*8)]%asi; \
211 	stxa	%l7, [SBP + (7*8)]%asi; \
212 	stxa	%i0, [SBP + (8*8)]%asi; \
213 	stxa	%i1, [SBP + (9*8)]%asi; \
214 	stxa	%i2, [SBP + (10*8)]%asi; \
215 	stxa	%i3, [SBP + (11*8)]%asi; \
216 	stxa	%i4, [SBP + (12*8)]%asi; \
217 	stxa	%i5, [SBP + (13*8)]%asi; \
218 	stxa	%i6, [SBP + (14*8)]%asi; \
219 	stxa	%i7, [SBP + (15*8)]%asi;
220 
221 #define	RESTORE_V9WINDOW(SBP) \
222 	ldx	[SBP + (0*8)], %l0; \
223 	ldx	[SBP + (1*8)], %l1; \
224 	ldx	[SBP + (2*8)], %l2; \
225 	ldx	[SBP + (3*8)], %l3; \
226 	ldx	[SBP + (4*8)], %l4; \
227 	ldx	[SBP + (5*8)], %l5; \
228 	ldx	[SBP + (6*8)], %l6; \
229 	ldx	[SBP + (7*8)], %l7; \
230 	ldx	[SBP + (8*8)], %i0; \
231 	ldx	[SBP + (9*8)], %i1; \
232 	ldx	[SBP + (10*8)], %i2; \
233 	ldx	[SBP + (11*8)], %i3; \
234 	ldx	[SBP + (12*8)], %i4; \
235 	ldx	[SBP + (13*8)], %i5; \
236 	ldx	[SBP + (14*8)], %i6; \
237 	ldx	[SBP + (15*8)], %i7;
238 
239 #define	STORE_FPREGS(FP) \
240 	std	%f0, [FP]; \
241 	std	%f2, [FP + 8]; \
242 	std	%f4, [FP + 16]; \
243 	std	%f6, [FP + 24]; \
244 	std	%f8, [FP + 32]; \
245 	std	%f10, [FP + 40]; \
246 	std	%f12, [FP + 48]; \
247 	std	%f14, [FP + 56]; \
248 	std	%f16, [FP + 64]; \
249 	std	%f18, [FP + 72]; \
250 	std	%f20, [FP + 80]; \
251 	std	%f22, [FP + 88]; \
252 	std	%f24, [FP + 96]; \
253 	std	%f26, [FP + 104]; \
254 	std	%f28, [FP + 112]; \
255 	std	%f30, [FP + 120]; \
256 	std	%d32, [FP + 128]; \
257 	std	%d34, [FP + 136]; \
258 	std	%d36, [FP + 144]; \
259 	std	%d38, [FP + 152]; \
260 	std	%d40, [FP + 160]; \
261 	std	%d42, [FP + 168]; \
262 	std	%d44, [FP + 176]; \
263 	std	%d46, [FP + 184]; \
264 	std	%d48, [FP + 192]; \
265 	std	%d50, [FP + 200]; \
266 	std	%d52, [FP + 208]; \
267 	std	%d54, [FP + 216]; \
268 	std	%d56, [FP + 224]; \
269 	std	%d58, [FP + 232]; \
270 	std	%d60, [FP + 240]; \
271 	std	%d62, [FP + 248];
272 
273 #define	LOAD_FPREGS(FP) \
274 	ldd	[FP], %f0; \
275 	ldd	[FP + 8], %f2; \
276 	ldd	[FP + 16], %f4; \
277 	ldd	[FP + 24], %f6; \
278 	ldd	[FP + 32], %f8; \
279 	ldd	[FP + 40], %f10; \
280 	ldd	[FP + 48], %f12; \
281 	ldd	[FP + 56], %f14; \
282 	ldd	[FP + 64], %f16; \
283 	ldd	[FP + 72], %f18; \
284 	ldd	[FP + 80], %f20; \
285 	ldd	[FP + 88], %f22; \
286 	ldd	[FP + 96], %f24; \
287 	ldd	[FP + 104], %f26; \
288 	ldd	[FP + 112], %f28; \
289 	ldd	[FP + 120], %f30; \
290 	ldd	[FP + 128], %d32; \
291 	ldd	[FP + 136], %d34; \
292 	ldd	[FP + 144], %d36; \
293 	ldd	[FP + 152], %d38; \
294 	ldd	[FP + 160], %d40; \
295 	ldd	[FP + 168], %d42; \
296 	ldd	[FP + 176], %d44; \
297 	ldd	[FP + 184], %d46; \
298 	ldd	[FP + 192], %d48; \
299 	ldd	[FP + 200], %d50; \
300 	ldd	[FP + 208], %d52; \
301 	ldd	[FP + 216], %d54; \
302 	ldd	[FP + 224], %d56; \
303 	ldd	[FP + 232], %d58; \
304 	ldd	[FP + 240], %d60; \
305 	ldd	[FP + 248], %d62;
306 
307 #define	STORE_DL_FPREGS(FP) \
308 	std	%f0, [FP]; \
309 	std	%f2, [FP + 8]; \
310 	std	%f4, [FP + 16]; \
311 	std	%f6, [FP + 24]; \
312 	std	%f8, [FP + 32]; \
313 	std	%f10, [FP + 40]; \
314 	std	%f12, [FP + 48]; \
315 	std	%f14, [FP + 56]; \
316 	std	%f16, [FP + 64]; \
317 	std	%f18, [FP + 72]; \
318 	std	%f20, [FP + 80]; \
319 	std	%f22, [FP + 88]; \
320 	std	%f24, [FP + 96]; \
321 	std	%f26, [FP + 104]; \
322 	std	%f28, [FP + 112]; \
323 	std	%f30, [FP + 120];
324 
325 #define	STORE_DU_FPREGS(FP) \
326 	std	%d32, [FP + 128]; \
327 	std	%d34, [FP + 136]; \
328 	std	%d36, [FP + 144]; \
329 	std	%d38, [FP + 152]; \
330 	std	%d40, [FP + 160]; \
331 	std	%d42, [FP + 168]; \
332 	std	%d44, [FP + 176]; \
333 	std	%d46, [FP + 184]; \
334 	std	%d48, [FP + 192]; \
335 	std	%d50, [FP + 200]; \
336 	std	%d52, [FP + 208]; \
337 	std	%d54, [FP + 216]; \
338 	std	%d56, [FP + 224]; \
339 	std	%d58, [FP + 232]; \
340 	std	%d60, [FP + 240]; \
341 	std	%d62, [FP + 248];
342 
343 #define	LOAD_DL_FPREGS(FP) \
344 	ldd	[FP], %f0; \
345 	ldd	[FP + 8], %f2; \
346 	ldd	[FP + 16], %f4; \
347 	ldd	[FP + 24], %f6; \
348 	ldd	[FP + 32], %f8; \
349 	ldd	[FP + 40], %f10; \
350 	ldd	[FP + 48], %f12; \
351 	ldd	[FP + 56], %f14; \
352 	ldd	[FP + 64], %f16; \
353 	ldd	[FP + 72], %f18; \
354 	ldd	[FP + 80], %f20; \
355 	ldd	[FP + 88], %f22; \
356 	ldd	[FP + 96], %f24; \
357 	ldd	[FP + 104], %f26; \
358 	ldd	[FP + 112], %f28; \
359 	ldd	[FP + 120], %f30;
360 
361 #define	LOAD_DU_FPREGS(FP) \
362 	ldd	[FP + 128], %d32; \
363 	ldd	[FP + 136], %d34; \
364 	ldd	[FP + 144], %d36; \
365 	ldd	[FP + 152], %d38; \
366 	ldd	[FP + 160], %d40; \
367 	ldd	[FP + 168], %d42; \
368 	ldd	[FP + 176], %d44; \
369 	ldd	[FP + 184], %d46; \
370 	ldd	[FP + 192], %d48; \
371 	ldd	[FP + 200], %d50; \
372 	ldd	[FP + 208], %d52; \
373 	ldd	[FP + 216], %d54; \
374 	ldd	[FP + 224], %d56; \
375 	ldd	[FP + 232], %d58; \
376 	ldd	[FP + 240], %d60; \
377 	ldd	[FP + 248], %d62;
378 
379 #endif /* _KERNEL */
380 
381 /*
382  * V9 privileged registers
383  */
384 
385 /*
386  * Condition Codes Register (CCR)
387  *
388  *	|-------------------------------|
389  *	|	XCC	|	ICC	|
390  *	| N | Z | V | C | N | Z | V | C |
391  *	|---|---|---|---|---|---|---|---|
392  *	7   6   5   4   3   2   1   0
393  */
394 #define	CCR_IC		0x01	/* 32b carry */
395 #define	CCR_IV		0x02	/* 32b overflow */
396 #define	CCR_IZ		0x04	/* 32b zero */
397 #define	CCR_IN		0x08	/* 32b negative */
398 #define	CCR_XC		0x10	/* 64b carry */
399 #define	CCR_XV		0x20	/* 64b overflow */
400 #define	CCR_XZ		0x40	/* 64b zero */
401 #define	CCR_XN		0x80	/* 64b negative */
402 #define	CCR_ICC		0x0F
403 #define	CCR_XCC		0xF0
404 
405 
406 /*
407  * Processor State Register (PSTATE)
408  *
409  *   |-------------------------------------------------------------|
410  *   |  IG | MG | CLE | TLE | MM | RED | PEF | AM | PRIV | IE | AG |
411  *   |-----|----|-----|-----|----|-----|-----|----|------|----|----|
412  *	11   10    9     8   7  6   5     4     3     2     1    0
413  *
414  * Note that the IG, MG, RED and AG fields are not applicable to sun4v
415  * compliant processors.
416  */
417 #ifndef GLREG
418 #define	PSTATE_AG	0x001		/* alternate globals */
419 #endif /* GLREG */
420 
421 #define	PSTATE_IE	0x002		/* interrupt enable */
422 #define	PSTATE_PRIV	0x004		/* privileged mode */
423 #define	PSTATE_AM	0x008		/* use 32b address mask */
424 #define	PSTATE_PEF	0x010		/* fp enable */
425 
426 #ifndef GLREG
427 #define	PSTATE_RED	0x020		/* red mode */
428 #endif /* GLREG */
429 
430 #define	PSTATE_MM	0x0C0		/* memory model */
431 #define	PSTATE_TLE	0x100		/* trap little endian */
432 #define	PSTATE_CLE	0x200		/* current little endian */
433 
434 #ifndef GLREG
435 #define	PSTATE_MG	0x400		/* MMU globals */
436 #define	PSTATE_IG	0x800		/* interrupt globals */
437 #endif /* GLREG */
438 
439 #define	PSTATE_BITS \
440 "\020\014IG\013MG\012CLE\011TLE\010MM-RMO\
441 \07MM-PSO\06RED\05PEF\04AM\03PRIV\02IE\01AG"
442 
443 /*
444  * Definition of MM (Memory Mode) bit field of pstate.
445  */
446 #define	PSTATE_MM_TSO	0x00		/* total store odering */
447 #define	PSTATE_MM_PSO	0x40		/* partial store odering */
448 #define	PSTATE_MM_RMO	0x80		/* relaxed memory ordering */
449 
450 
451 /*
452  * Trap State Register (TSTATE)
453  *
454  *	|------------------------------------------|
455  *	| GL | CCR | ASI | --- | PSTATE | -- | CWP |
456  *	|----|-----|-----|-----|--------|----|-----|
457  *	42 40 39 32 31 24 23 20 19	  8 7  5 4   0
458  *
459  * Note that the GL field is applicable to sun4v compliant processors only.
460  */
461 #define	TSTATE_CWP_MASK		0x01F
462 #define	TSTATE_CWP_SHIFT	0
463 #define	TSTATE_PSTATE_MASK	0xFFF
464 #define	TSTATE_PSTATE_SHIFT	8
465 #define	TSTATE_ASI_MASK		0x0FF
466 #define	TSTATE_ASI_SHIFT	24
467 #define	TSTATE_CCR_MASK		0x0FF
468 #define	TSTATE_CCR_SHIFT	32
469 
470 #ifdef GLREG
471 #define	TSTATE_GL_MASK		0x7
472 #define	TSTATE_GL_SHIFT		40
473 #endif /* GLREG */
474 
475 /*
476  * Some handy tstate macros
477  */
478 #define	TSTATE_AG	(PSTATE_AG << TSTATE_PSTATE_SHIFT)
479 #define	TSTATE_IE	(PSTATE_IE << TSTATE_PSTATE_SHIFT)
480 #define	TSTATE_PRIV	(PSTATE_PRIV << TSTATE_PSTATE_SHIFT)
481 #define	TSTATE_AM	(PSTATE_AM << TSTATE_PSTATE_SHIFT)
482 #define	TSTATE_PEF	(PSTATE_PEF << TSTATE_PSTATE_SHIFT)
483 #define	TSTATE_MG	(PSTATE_MG << TSTATE_PSTATE_SHIFT)
484 #define	TSTATE_IG	(PSTATE_IG << TSTATE_PSTATE_SHIFT)
485 #define	TSTATE_CWP	TSTATE_CWP_MASK
486 
487 /*
488  * as is 64b, but cc is 32b, so we need this hack.
489  */
490 #ifndef _ASM
491 #define	TSTATE_ICC	((long long)CCR_ICC << TSTATE_CCR_SHIFT)
492 #define	TSTATE_IC	((long long)CCR_IC << TSTATE_CCR_SHIFT)
493 #define	TSTATE_IV	((long long)CCR_IV << TSTATE_CCR_SHIFT)
494 #define	TSTATE_XV	((long long)CCR_XV << TSTATE_CCR_SHIFT)
495 #else
496 #define	TSTATE_ICC	(CCR_ICC << TSTATE_CCR_SHIFT)
497 #define	TSTATE_IC	(CCR_IC << TSTATE_CCR_SHIFT)
498 #define	TSTATE_IV	(CCR_IV << TSTATE_CCR_SHIFT)
499 #define	TSTATE_XV	(CCR_XV << TSTATE_CCR_SHIFT)
500 #endif
501 #define	TSTATE_V8_UBITS (TSTATE_ICC | TSTATE_PEF)
502 
503 /*
504  * Initial kernel and user %tstate.
505  */
506 #define	PTSTATE_KERN_COMMON \
507 	(PSTATE_PRIV | PSTATE_PEF | PSTATE_MM_TSO)
508 
509 #define	TSTATE_USER_COMMON \
510 	(PSTATE_IE | PSTATE_PEF | PSTATE_MM_TSO)
511 
512 #define	TSTATE_KERN	\
513 	(PTSTATE_KERN_COMMON << TSTATE_PSTATE_SHIFT)
514 
515 #define	PSTATE_KERN	\
516 	(PTSTATE_KERN_COMMON | PSTATE_PRIV | PSTATE_IE)
517 
518 #define	TSTATE_USER32	\
519 	(((TSTATE_USER_COMMON | PSTATE_AM) << TSTATE_PSTATE_SHIFT) | \
520 	    ((long long)ASI_PNF << TSTATE_ASI_SHIFT))
521 
522 #define	TSTATE_USER64	\
523 	((TSTATE_USER_COMMON << TSTATE_PSTATE_SHIFT) | \
524 	    ((long long)ASI_PNF << TSTATE_ASI_SHIFT))
525 
526 #define	USERMODE(x)	(!((x) & TSTATE_PRIV))
527 
528 /*
529  * Window State Register (WSTATE)
530  *
531  *   |------------|
532  *   |OTHER|NORMAL|
533  *   |-----|------|
534  *    5	  3 2    0
535  */
536 #define	WSTATE_BAD	0	/* unused */
537 #define	WSTATE_U32	1	/* 32b stack */
538 #define	WSTATE_U64	2	/* 64b stack */
539 #define	WSTATE_CLEAN32	3	/* cleanwin workaround, 32b stack */
540 #define	WSTATE_CLEAN64	4	/* cleanwin workaround, 64b stack */
541 #define	WSTATE_K32	5	/* priv 32b stack */
542 #define	WSTATE_K64	6	/* priv 64b stack */
543 #define	WSTATE_KMIX	7	/* priv mixed stack */
544 
545 #define	WSTATE_CLEAN_OFFSET	2
546 #define	WSTATE_SHIFT	3	/* normal-to-other shift */
547 #define	WSTATE_MASK	7	/* mask for each set */
548 #define	WSTATE(o, n)	(((o) << WSTATE_SHIFT) | (n))
549 
550 #define	WSTATE_USER32	WSTATE(WSTATE_BAD, WSTATE_U32)
551 #define	WSTATE_USER64	WSTATE(WSTATE_BAD, WSTATE_U64)
552 #define	WSTATE_KERN	WSTATE(WSTATE_U32, WSTATE_K64)
553 
554 /*
555  * Processor Interrupt Level Register (PIL)
556  *
557  *   |-----|
558  *   | PIL |
559  *   |-----|
560  *    3   0
561  */
562 
563 /*
564  * Version Register (VER)
565  *
566  *   |-------------------------------------------------|
567  *   | manuf | impl | mask | ---- | maxtl | - | maxwin |
568  *   |-------|------|------|------|-------|---|--------|
569  *    63   48 47  32 31  24 23  16 15	8  7 5	4    0
570  */
571 #define	VER_MANUF	0xFFFF000000000000
572 #define	VER_IMPL	0x0000FFFF00000000
573 #define	VER_MASK	0x00000000FF000000
574 #define	VER_MAXTL	0x000000000000FF00
575 #define	VER_MAXWIN	0x000000000000001F
576 
577 /*
578  * Tick Register (TICK)
579  *
580  *   |---------------|
581  *   | npt | counter |
582  *   |-----|---------|
583  *     63   62      0
584  *
585  * Note: UltraSparc III Stick register has the same layout. When
586  * present, we clear it too.
587  */
588 
589 #define	TICK_NPT	0x8000000000000000
590 #define	TICK_COUNTER	0x7FFFFFFFFFFFFFFF
591 
592 #ifdef	__cplusplus
593 }
594 #endif
595 
596 #endif	/* _SYS_PRIVREGS_H */
597