xref: /titanic_52/usr/src/uts/sun4u/sys/spitregs.h (revision c869993e79c1eafbec61a56bf6cea848fe754c71)
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 2004 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef _SYS_SPITREGS_H
28 #define	_SYS_SPITREGS_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #ifdef	__cplusplus
33 extern "C" {
34 #endif
35 
36 /*
37  * This file is cpu dependent.
38  */
39 
40 #ifdef _STARFIRE
41 /*
42  * Starfire's cpu upaids are not the same
43  * as cpuids.
44  * XXX - our obp took the liberty of
45  * converting cpu upaids into cpuids when
46  * presenting it as upa-portid property.
47  */
48 #define	CPUID_TO_UPAID(upaid)	(((upaid & 0x3C) << 1) |	\
49 				((upaid & 0x40) >> 4) |		\
50 				(upaid &0x3))
51 #else
52 /*
53  * The mid is the same as the cpu id.
54  * We might want to change this later
55  */
56 #define	CPUID_TO_UPAID(cpuid)	(cpuid)
57 #endif	/* _STARFIRE */
58 
59 /*
60  * LSU Control Register
61  *
62  * +------+----+----+----+----+----+----+-----+------+----+----+----+---+
63  * | Resv | PM | VM | PR | PW | VR | VW | Rsv |  FM  | DM | IM | DC | IC|
64  * +------+----+----+----+----+----+----+-----+------+----+----+----+---+
65  *  63  41   33   25   24   23	 22   21   20  19   4	3    2	  1   0
66  *
67  */
68 
69 #define	LSU_IC		0x00000000001	/* icache enable */
70 #define	LSU_DC		0x00000000002	/* dcache enable */
71 #define	LSU_IM		0x00000000004	/* immu enable */
72 #define	LSU_DM		0x00000000008	/* dmmu enable */
73 #define	LSU_FM		0x000000FFFF0	/* parity mask */
74 #define	LSU_VW		0x00000200000	/* virtual watchpoint write enable */
75 #define	LSU_VR		0x00000400000	/* virtual watchpoint read enable */
76 #define	LSU_PW		0x00000800000	/* physical watchpoint write enable */
77 #define	LSU_PR		0x00001000000	/* physical watchpoint read enable */
78 #define	LSU_VM		0x001fe000000	/* virtual watchpoint byte mask */
79 #define	LSU_PM		0x1fe00000000	/* physical watch point byte mask */
80 
81 #define	LSU_VM_SHIFT	25
82 #define	LSU_PM_SHIFT	33
83 
84 /*
85  * Defines for the different types of dcache_flush
86  * it is stored in dflush_type
87  */
88 #define	FLUSHALL_TYPE	0x0		/* blasts all cache lines */
89 #define	FLUSHMATCH_TYPE	0x1		/* flush entire cache but check each */
90 					/* each line for a match */
91 #define	FLUSHPAGE_TYPE	0x2		/* flush only one page and check */
92 					/* each line for a match */
93 
94 /*
95  * D-Cache Tag Data Register
96  *
97  * +----------+--------+----------+
98  * | Reserved | DC_Tag | DC_Valid |
99  * +----------+--------+----------+
100  *  63	    30 29    2	1	 0
101  *
102  */
103 #define	ICACHE_FLUSHSZ	0x20	/* one line in i$ */
104 #define	DC_PTAG_SHIFT	34
105 #define	DC_LINE_SHIFT	30
106 #define	SF_DC_VBIT_SHIFT 2
107 #define	SF_DC_VBIT_MASK	0x3
108 #define	IC_LINE_SHIFT	3
109 #define	IC_LINE		512
110 #define	INDEX_BIT_SHIFT	13
111 
112 /*
113  * Definitions of sun4u cpu implementations as specified in version register
114  */
115 #define	SPITFIRE_IMPL	0x10
116 #define	IS_SPITFIRE(impl)	((impl) == SPITFIRE_IMPL)
117 #define	SPITFIRE_MAJOR_VERSION(rev)	(((rev) >> 4) & 0xf)
118 #define	SPITFIRE_MINOR_VERSION(rev)	((rev) & 0xf)
119 
120 #define	BLACKBIRD_IMPL	0x11
121 #define	IS_BLACKBIRD(impl)	((impl) == BLACKBIRD_IMPL)
122 #define	BLACKBIRD_MAJOR_VERSION(rev)	(((rev) >> 4) & 0xf)
123 #define	BLACKBIRD_MINOR_VERSION(rev)	((rev) & 0xf)
124 
125 #define	SABRE_IMPL	0x12
126 #define	HUMMBRD_IMPL	0x13
127 
128 /*
129  * Bits of Spitfire Asynchronous Fault Status Register
130  */
131 #define	P_AFSR_STICKY	0x00000001FFF00000ULL /* mask for all sticky bits */
132 #define	P_AFSR_ERRS	0x000000001EE00000ULL /* mask for remaining errors */
133 #define	P_AFSR_ME	0x0000000100000000ULL /* errors > 1, same type!=CE */
134 #define	P_AFSR_PRIV	0x0000000080000000ULL /* priv/supervisor access */
135 #define	P_AFSR_ISAP	0x0000000040000000ULL /* incoming system addr. parity */
136 #define	P_AFSR_ETP	0x0000000020000000ULL /* ecache tag parity */
137 #define	P_AFSR_IVUE	0x0000000010000000ULL /* interrupt vector with UE */
138 #define	P_AFSR_TO	0x0000000008000000ULL /* bus timeout */
139 #define	P_AFSR_BERR	0x0000000004000000ULL /* bus error */
140 #define	P_AFSR_LDP	0x0000000002000000ULL /* data parity error from SDB */
141 #define	P_AFSR_CP	0x0000000001000000ULL /* copyout parity error */
142 #define	P_AFSR_WP	0x0000000000800000ULL /* writeback ecache data parity */
143 #define	P_AFSR_EDP	0x0000000000400000ULL /* ecache data parity */
144 #define	P_AFSR_UE	0x0000000000200000ULL /* uncorrectable ECC error */
145 #define	P_AFSR_CE	0x0000000000100000ULL /* correctable ECC error */
146 #define	P_AFSR_ETS	0x00000000000F0000ULL /* cache tag parity syndrome */
147 #define	P_AFSR_P_SYND	0x000000000000FFFFULL /* data parity syndrome */
148 
149 /*
150  * All error types
151  */
152 #define	S_AFSR_ALL_ERRS	(P_AFSR_STICKY & ~P_AFSR_PRIV)
153 
154 /*
155  * Shifts for Spitfire Asynchronous Fault Status Register
156  */
157 #define	P_AFSR_D_SIZE_SHIFT	(57)
158 #define	P_AFSR_CP_SHIFT		(24)
159 #define	P_AFSR_ETS_SHIFT	(16)
160 
161 /*
162  * AFSR error bits for AFT Level 1 messages (uncorrected + parity + BERR + TO)
163  */
164 #define	P_AFSR_LEVEL1   (P_AFSR_UE | P_AFSR_EDP | P_AFSR_WP | P_AFSR_CP |\
165 			P_AFSR_LDP | P_AFSR_BERR | P_AFSR_TO)
166 
167 /*
168  * Bits of Spitfire Asynchronous Fault Status Register
169  */
170 #define	S_AFSR_MASK	0x00000001FFFFFFFFULL /* <33:0>: valid AFSR bits */
171 
172 /*
173  * Bits of Spitfire Asynchronous Fault Address Register
174  * The Sabre AFAR includes more bits since it only has a UDBH, no UDBL
175  */
176 #define	S_AFAR_PA	0x000001FFFFFFFFF0ULL /* PA<40:4>: physical address */
177 #define	SABRE_AFAR_PA	0x000001FFFFFFFFF8ULL /* PA<40:3>: physical address */
178 
179 /*
180  * Bits of Spitfire/Sabre/Hummingbird Error Enable Registers
181  */
182 #define	EER_EPEN	0x00000000000000010ULL /* enable ETP, EDP, WP, CP */
183 #define	EER_UEEN	0x00000000000000008ULL /* enable UE */
184 #define	EER_ISAPEN	0x00000000000000004ULL /* enable ISAP */
185 #define	EER_NCEEN	0x00000000000000002ULL /* enable the other errors */
186 #define	EER_CEEN	0x00000000000000001ULL /* enable CE */
187 #define	EER_DISABLE	0x00000000000000000ULL /* no errors enabled */
188 #define	EER_ECC_DISABLE	(EER_EPEN|EER_UEEN|EER_ISAPEN)
189 #define	EER_CE_DISABLE	(EER_EPEN|EER_UEEN|EER_ISAPEN|EER_NCEEN)
190 #define	EER_ENABLE	(EER_EPEN|EER_UEEN|EER_ISAPEN|EER_NCEEN|EER_CEEN)
191 
192 /*
193  * Bits and vaddrs of Spitfire Datapath Error Registers
194  */
195 #define	P_DER_UE	0x00000000000000200ULL	/* UE has occurred */
196 #define	P_DER_CE	0x00000000000000100ULL	/* CE has occurred */
197 #define	P_DER_E_SYND	0x000000000000000FFULL	/* SYND<7:0>: ECC syndrome */
198 #define	P_DER_H		0x0			/* datapath error reg upper */
199 #define	P_DER_L		0x18			/* datapath error reg upper */
200 
201 /*
202  * Bits of Spitfire Datapath Control Register
203  */
204 #define	P_DCR_VER	0x000001E00		/* datapath version */
205 #define	P_DCR_F_MODE	0x000000100		/* send FCB<7:0> */
206 #define	P_DCR_FCB	0x0000000FF		/* ECC check bits to force */
207 #define	P_DCR_H		0x20			/* datapath control reg upper */
208 #define	P_DCR_L		0x38			/* datapath control reg lower */
209 
210 /*
211  * Bits and shifts for the Spitfire (S), Sabre (SB) and Hummingbird (HB)
212  * Ecache tag data
213  */
214 #define	S_ECTAG_MASK	0x000000000003FFFFFULL	/* spitfire ecache tag mask */
215 #define	SB_ECTAG_MASK	0x00000000000000FFFULL	/* sabre ecache tag mask */
216 #define	HB_ECTAG_MASK	0x0000000000000FFFFULL	/* hbird ecache tag mask */
217 #define	S_ECSTATE_MASK	0x00000000001C00000ULL	/* spitfire tag state mask */
218 #define	SB_ECSTATE_MASK 0x0000000000000C000ULL	/* sabre tag state mask */
219 #define	HB_ECSTATE_MASK 0x00000000000030000ULL	/* hbird tag state mask */
220 #define	S_ECPAR_MASK	0x0000000001E000000ULL	/* spitfire tag parity mask */
221 #define	SB_ECPAR_MASK	0x00000000000030000ULL	/* sabre tag parity mask */
222 #define	HB_ECPAR_MASK	0x00000000000300000ULL	/* hbird tag parity mask */
223 #define	S_ECTAG_SHIFT		19		/* spitfire ecache tag shift */
224 #define	SB_ECTAG_SHIFT		18		/* sabre ecache tag shift */
225 #define	HB_ECTAG_SHIFT		16		/* hbird ecache tag shift */
226 #define	S_ECSTATE_SHIFT		22		/* spitfire tag state shift */
227 #define	SB_ECSTATE_SHIFT	14		/* sabre tag state shift */
228 #define	HB_ECSTATE_SHIFT	16		/* hbird tag state shift */
229 #define	S_ECPAR_SHIFT		25		/* spitfire tag parity shift */
230 #define	SB_ECPAR_SHIFT		16		/* sabre tag parity shift */
231 #define	HB_ECPAR_SHIFT		20		/* hbird tag parity shift */
232 #define	S_ECACHE_MAX_LSIZE	64		/* E$ line size */
233 
234 /*
235  * Constants representing the complete Spitfire (S), Sabre (SB) and Hummingbird
236  * (HB) tag state:
237  */
238 #define	S_ECSTATE_SHR		0x1		/* shared */
239 #define	S_ECSTATE_EXL		0x3		/* exclusive */
240 #define	S_ECSTATE_OWN		0x5		/* owner */
241 #define	S_ECSTATE_MOD		0x7		/* modified */
242 #define	SB_ECSTATE_EXL		0x2		/* exclusive */
243 #define	SB_ECSTATE_MOD		0x3		/* modified */
244 #define	HB_ECSTATE_EXL		0x2		/* exclusive */
245 #define	HB_ECSTATE_MOD		0x3		/* modified */
246 
247 /*
248  * Constants representing the individual Spitfire (S), Sabre (SB) and
249  * Hummingbird (HB) state bits:
250  */
251 #define	S_ECSTATE_VALID		0x1		/* line is valid */
252 #define	S_ECSTATE_DIRTY		0x4		/* line is dirty */
253 #define	SB_ECSTATE_VALID	0x2		/* line is valid */
254 #define	SB_ECSTATE_DIRTY	0x1		/* line is dirty */
255 #define	HB_ECSTATE_VALID	0x2		/* line is valid */
256 #define	HB_ECSTATE_DIRTY	0x1		/* line is dirty */
257 
258 /*
259  * Constants representing the individual Spitfire (S), Sabre (SB) and
260  * Hummingbird (HB) state parity and address parity bits:
261  */
262 #define	S_ECSTATE_PARITY	0x8		/* tag state parity bit */
263 #define	S_EC_PARITY		0xF		/* all parity bits */
264 #define	SB_ECSTATE_PARITY	0x2		/* tag state parity bit */
265 #define	SB_EC_PARITY		0x3		/* all parity bits */
266 #define	HB_ECSTATE_PARITY	0x2		/* tag state parity bit */
267 #define	HB_EC_PARITY		0x3		/* all parity bits */
268 
269 #ifdef HUMMINGBIRD
270 
271 #define	HB_ESTAR_MODE		INT64_C(0x1FE0000F080)	/* estar mode reg */
272 #define	HB_MEM_CNTRL0		INT64_C(0x1FE0000F010)	/* mem control0 reg */
273 #define	HB_REFRESH_COUNT_MASK	0x7F00			/* mc0<14:8>: ref cnt */
274 #define	HB_REFRESH_COUNT_SHIFT	8			/* bits to shift */
275 #define	HB_REFRESH_INTERVAL	INT64_C(7800)		/* 7800 nsecs memory */
276 							/* refresh interval */
277 							/* works for all DIMM */
278 							/* same value as OBP */
279 #define	HB_REFRESH_CLOCKS_PER_COUNT	INT64_C(64)	/* cpu clks per count */
280 #define	HB_SELF_REFRESH_MASK	0x10000			/* mc0<16>: self ref */
281 #define	HB_SELF_REFRESH_SHIFT	16			/* bits to shift */
282 #define	HB_SELF_REFRESH_DISABLE	0			/* disable self ref */
283 #define	HB_SELF_REFRESH_ENABLE	1			/* enable self ref */
284 
285 #define	HB_ECLK_1	INT64_C(0x0000000000000000) 	/* 1/1 clock */
286 #define	HB_ECLK_2	INT64_C(0x0000000000000001) 	/* 1/2 clock */
287 #define	HB_ECLK_4	INT64_C(0x0000000000000003) 	/* 1/4 clock */
288 #define	HB_ECLK_6	INT64_C(0x0000000000000002) 	/* 1/6 clock */
289 #define	HB_ECLK_8	INT64_C(0x0000000000000004) 	/* 1/8 clock */
290 #define	HB_ECLK_MASK	(HB_ECLK_1|HB_ECLK_2|HB_ECLK_4|HB_ECLK_6|HB_ECLK_8)
291 
292 
293 /*
294  * UPA Configuration Register
295  *
296  * +--------------+----+------+------+----------+------+-------------+
297  * |     Resv     | RR |  DM  | ELIM |   PCON   | MID  |     PCAP    |
298  * +--------------+----+------+------+----------+------+-------------+
299  *  63          39  38  37..36 35..33 32......22 21..17 16..........0
300  *
301  */
302 
303 #define	HB_UPA_DMAP_DATA_BIT	36	/* loads and stores direct mapped */
304 #define	HB_UPA_DMAP_INSTR_BIT	37	/* instruction misses direct mapped */
305 #define	HB_UPA_RR_BIT		38	/* reset rand generator */
306 
307 #endif /* HUMMINGBIRD */
308 
309 /*
310  * The minimum size needed to ensure consistency on a virtually address
311  * cache.  Computed by taking the largest virtually indexed cache and dividing
312  * by its associativity.
313  */
314 #define	S_VAC_SIZE	0x4000
315 
316 #ifdef _KERNEL
317 
318 #ifndef _ASM
319 #include <sys/kstat.h>
320 
321 void	get_udb_errors(uint64_t *udbh, uint64_t *udbl);
322 
323 /*
324  * The scrub_misc structure contains miscellaneous bookeepping items for
325  * scrubbing the E$.
326  *
327  * Counter of outstanding E$ scrub requests. The counter for a given CPU id
328  * is atomically incremented and decremented _only_  on that CPU,
329  * to avoid cacheline ownership bouncing.
330  */
331 
332 typedef struct spitfire_scrub_misc {
333 	uint32_t	ec_scrub_outstanding;	/* outstanding reqs */
334 	int		ecache_flush_index;	/* offset into E$ for flush */
335 	int		ecache_busy;		/* keeps track if cpu busy */
336 	int		ecache_nlines;		/* no. of E$ lines */
337 	int		ecache_mirror;		/* E$ is mirrored */
338 	kstat_t		*ecache_ksp;		/* ptr to the kstat */
339 } spitfire_scrub_misc_t;
340 
341 /*
342  * Spitfire module private data structure. One of these is allocated for each
343  * valid cpu at setup time and is pointed to by the machcpu "cpu_private"
344  * pointer.
345  */
346 typedef struct spitfire_private {
347 	spitfire_scrub_misc_t	sfpr_scrub_misc;
348 	uint64_t		sfpr_scrub_afsr;
349 } spitfire_private_t;
350 
351 #endif /* !_ASM */
352 
353 #endif /* _KERNEL */
354 
355 #ifdef	__cplusplus
356 }
357 #endif
358 
359 #endif	/* _SYS_SPITREGS_H */
360