1 /*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Derived from IRIX <sys/SN/SN0/hubpi.h>, revision 1.28.
7 *
8 * Copyright (C) 1992 - 1997, 1999 Silicon Graphics, Inc.
9 * Copyright (C) 1999 by Ralf Baechle
10 */
11 #ifndef _ASM_SN_SN0_HUBPI_H
12 #define _ASM_SN_SN0_HUBPI_H
13
14 #include <linux/types.h>
15
16 /*
17 * Hub I/O interface registers
18 *
19 * All registers in this file are subject to change until Hub chip tapeout.
20 * All register "addresses" are actually offsets. Use the LOCAL_HUB
21 * or REMOTE_HUB macros to synthesize an actual address
22 */
23
24 #define PI_BASE 0x000000
25
26 /* General protection and control registers */
27
28 #define PI_CPU_PROTECT 0x000000 /* CPU Protection */
29 #define PI_PROT_OVERRD 0x000008 /* Clear CPU Protection bit */
30 #define PI_IO_PROTECT 0x000010 /* Interrupt Pending Protection */
31 #define PI_REGION_PRESENT 0x000018 /* Indicates whether region exists */
32 #define PI_CPU_NUM 0x000020 /* CPU Number ID */
33 #define PI_CALIAS_SIZE 0x000028 /* Cached Alias Size */
34 #define PI_MAX_CRB_TIMEOUT 0x000030 /* Maximum Timeout for CRB */
35 #define PI_CRB_SFACTOR 0x000038 /* Scale factor for CRB timeout */
36
37 /* CALIAS values */
38 #define PI_CALIAS_SIZE_0 0
39 #define PI_CALIAS_SIZE_4K 1
40 #define PI_CALIAS_SIZE_8K 2
41 #define PI_CALIAS_SIZE_16K 3
42 #define PI_CALIAS_SIZE_32K 4
43 #define PI_CALIAS_SIZE_64K 5
44 #define PI_CALIAS_SIZE_128K 6
45 #define PI_CALIAS_SIZE_256K 7
46 #define PI_CALIAS_SIZE_512K 8
47 #define PI_CALIAS_SIZE_1M 9
48 #define PI_CALIAS_SIZE_2M 10
49 #define PI_CALIAS_SIZE_4M 11
50 #define PI_CALIAS_SIZE_8M 12
51 #define PI_CALIAS_SIZE_16M 13
52 #define PI_CALIAS_SIZE_32M 14
53 #define PI_CALIAS_SIZE_64M 15
54
55 /* Processor control and status checking */
56
57 #define PI_CPU_PRESENT_A 0x000040 /* CPU Present A */
58 #define PI_CPU_PRESENT_B 0x000048 /* CPU Present B */
59 #define PI_CPU_ENABLE_A 0x000050 /* CPU Enable A */
60 #define PI_CPU_ENABLE_B 0x000058 /* CPU Enable B */
61 #define PI_REPLY_LEVEL 0x000060 /* Reply Level */
62 #define PI_HARDRESET_BIT 0x020068 /* Bit cleared by s/w on SR */
63 #define PI_NMI_A 0x000070 /* NMI to CPU A */
64 #define PI_NMI_B 0x000078 /* NMI to CPU B */
65 #define PI_NMI_OFFSET (PI_NMI_B - PI_NMI_A)
66 #define PI_SOFTRESET 0x000080 /* Softreset (to both CPUs) */
67
68 /* Regular Interrupt register checking. */
69
70 #define PI_INT_PEND_MOD 0x000090 /* Write to set pending ints */
71 #define PI_INT_PEND0 0x000098 /* Read to get pending ints */
72 #define PI_INT_PEND1 0x0000a0 /* Read to get pending ints */
73 #define PI_INT_MASK0_A 0x0000a8 /* Interrupt Mask 0 for CPU A */
74 #define PI_INT_MASK1_A 0x0000b0 /* Interrupt Mask 1 for CPU A */
75 #define PI_INT_MASK0_B 0x0000b8 /* Interrupt Mask 0 for CPU B */
76 #define PI_INT_MASK1_B 0x0000c0 /* Interrupt Mask 1 for CPU B */
77
78 #define PI_INT_MASK_OFFSET 0x10 /* Offset from A to B */
79
80 /* Crosscall interrupts */
81
82 #define PI_CC_PEND_SET_A 0x0000c8 /* CC Interrupt Pending Set, CPU A */
83 #define PI_CC_PEND_SET_B 0x0000d0 /* CC Interrupt Pending Set, CPU B */
84 #define PI_CC_PEND_CLR_A 0x0000d8 /* CC Interrupt Pending Clr, CPU A */
85 #define PI_CC_PEND_CLR_B 0x0000e0 /* CC Interrupt Pending Clr, CPU B */
86 #define PI_CC_MASK 0x0000e8 /* CC Interrupt mask */
87
88 #define PI_INT_SET_OFFSET 0x08 /* Offset from A to B */
89
90 /* Realtime Counter and Profiler control registers */
91
92 #define PI_RT_COUNT 0x030100 /* Real Time Counter */
93 #define PI_RT_COMPARE_A 0x000108 /* Real Time Compare A */
94 #define PI_RT_COMPARE_B 0x000110 /* Real Time Compare B */
95 #define PI_PROFILE_COMPARE 0x000118 /* L5 int to both cpus when == RTC */
96 #define PI_RT_PEND_A 0x000120 /* Set if RT int for A pending */
97 #define PI_RT_PEND_B 0x000128 /* Set if RT int for B pending */
98 #define PI_PROF_PEND_A 0x000130 /* Set if Prof int for A pending */
99 #define PI_PROF_PEND_B 0x000138 /* Set if Prof int for B pending */
100 #define PI_RT_EN_A 0x000140 /* RT int for CPU A enable */
101 #define PI_RT_EN_B 0x000148 /* RT int for CPU B enable */
102 #define PI_PROF_EN_A 0x000150 /* PROF int for CPU A enable */
103 #define PI_PROF_EN_B 0x000158 /* PROF int for CPU B enable */
104 #define PI_RT_LOCAL_CTRL 0x000160 /* RT control register */
105 #define PI_RT_FILTER_CTRL 0x000168 /* GCLK Filter control register */
106
107 #define PI_COUNT_OFFSET 0x08 /* A to B offset for all counts */
108
109 /* Built-In Self Test support */
110
111 #define PI_BIST_WRITE_DATA 0x000200 /* BIST write data */
112 #define PI_BIST_READ_DATA 0x000208 /* BIST read data */
113 #define PI_BIST_COUNT_TARG 0x000210 /* BIST Count and Target */
114 #define PI_BIST_READY 0x000218 /* BIST Ready indicator */
115 #define PI_BIST_SHIFT_LOAD 0x000220 /* BIST control */
116 #define PI_BIST_SHIFT_UNLOAD 0x000228 /* BIST control */
117 #define PI_BIST_ENTER_RUN 0x000230 /* BIST control */
118
119 /* Graphics control registers */
120
121 #define PI_GFX_PAGE_A 0x000300 /* Graphics page A */
122 #define PI_GFX_CREDIT_CNTR_A 0x000308 /* Graphics credit counter A */
123 #define PI_GFX_BIAS_A 0x000310 /* Graphics bias A */
124 #define PI_GFX_INT_CNTR_A 0x000318 /* Graphics interrupt counter A */
125 #define PI_GFX_INT_CMP_A 0x000320 /* Graphics interrupt comparator A */
126 #define PI_GFX_PAGE_B 0x000328 /* Graphics page B */
127 #define PI_GFX_CREDIT_CNTR_B 0x000330 /* Graphics credit counter B */
128 #define PI_GFX_BIAS_B 0x000338 /* Graphics bias B */
129 #define PI_GFX_INT_CNTR_B 0x000340 /* Graphics interrupt counter B */
130 #define PI_GFX_INT_CMP_B 0x000348 /* Graphics interrupt comparator B */
131
132 #define PI_GFX_OFFSET (PI_GFX_PAGE_B - PI_GFX_PAGE_A)
133 #define PI_GFX_PAGE_ENABLE 0x0000010000000000LL
134
135 /* Error and timeout registers */
136 #define PI_ERR_INT_PEND 0x000400 /* Error Interrupt Pending */
137 #define PI_ERR_INT_MASK_A 0x000408 /* Error Interrupt mask for CPU A */
138 #define PI_ERR_INT_MASK_B 0x000410 /* Error Interrupt mask for CPU B */
139 #define PI_ERR_STACK_ADDR_A 0x000418 /* Error stack address for CPU A */
140 #define PI_ERR_STACK_ADDR_B 0x000420 /* Error stack address for CPU B */
141 #define PI_ERR_STACK_SIZE 0x000428 /* Error Stack Size */
142 #define PI_ERR_STATUS0_A 0x000430 /* Error Status 0A */
143 #define PI_ERR_STATUS0_A_RCLR 0x000438 /* Error Status 0A clear on read */
144 #define PI_ERR_STATUS1_A 0x000440 /* Error Status 1A */
145 #define PI_ERR_STATUS1_A_RCLR 0x000448 /* Error Status 1A clear on read */
146 #define PI_ERR_STATUS0_B 0x000450 /* Error Status 0B */
147 #define PI_ERR_STATUS0_B_RCLR 0x000458 /* Error Status 0B clear on read */
148 #define PI_ERR_STATUS1_B 0x000460 /* Error Status 1B */
149 #define PI_ERR_STATUS1_B_RCLR 0x000468 /* Error Status 1B clear on read */
150 #define PI_SPOOL_CMP_A 0x000470 /* Spool compare for CPU A */
151 #define PI_SPOOL_CMP_B 0x000478 /* Spool compare for CPU B */
152 #define PI_CRB_TIMEOUT_A 0x000480 /* Timed out CRB entries for A */
153 #define PI_CRB_TIMEOUT_B 0x000488 /* Timed out CRB entries for B */
154 #define PI_SYSAD_ERRCHK_EN 0x000490 /* Enables SYSAD error checking */
155 #define PI_BAD_CHECK_BIT_A 0x000498 /* Force SYSAD check bit error */
156 #define PI_BAD_CHECK_BIT_B 0x0004a0 /* Force SYSAD check bit error */
157 #define PI_NACK_CNT_A 0x0004a8 /* Consecutive NACK counter */
158 #define PI_NACK_CNT_B 0x0004b0 /* " " for CPU B */
159 #define PI_NACK_CMP 0x0004b8 /* NACK count compare */
160 #define PI_STACKADDR_OFFSET (PI_ERR_STACK_ADDR_B - PI_ERR_STACK_ADDR_A)
161 #define PI_ERRSTAT_OFFSET (PI_ERR_STATUS0_B - PI_ERR_STATUS0_A)
162 #define PI_RDCLR_OFFSET (PI_ERR_STATUS0_A_RCLR - PI_ERR_STATUS0_A)
163
164 /* Bits in PI_ERR_INT_PEND */
165 #define PI_ERR_SPOOL_CMP_B 0x00000001 /* Spool end hit high water */
166 #define PI_ERR_SPOOL_CMP_A 0x00000002
167 #define PI_ERR_SPUR_MSG_B 0x00000004 /* Spurious message intr. */
168 #define PI_ERR_SPUR_MSG_A 0x00000008
169 #define PI_ERR_WRB_TERR_B 0x00000010 /* WRB TERR */
170 #define PI_ERR_WRB_TERR_A 0x00000020
171 #define PI_ERR_WRB_WERR_B 0x00000040 /* WRB WERR */
172 #define PI_ERR_WRB_WERR_A 0x00000080
173 #define PI_ERR_SYSSTATE_B 0x00000100 /* SysState parity error */
174 #define PI_ERR_SYSSTATE_A 0x00000200
175 #define PI_ERR_SYSAD_DATA_B 0x00000400 /* SysAD data parity error */
176 #define PI_ERR_SYSAD_DATA_A 0x00000800
177 #define PI_ERR_SYSAD_ADDR_B 0x00001000 /* SysAD addr parity error */
178 #define PI_ERR_SYSAD_ADDR_A 0x00002000
179 #define PI_ERR_SYSCMD_DATA_B 0x00004000 /* SysCmd data parity error */
180 #define PI_ERR_SYSCMD_DATA_A 0x00008000
181 #define PI_ERR_SYSCMD_ADDR_B 0x00010000 /* SysCmd addr parity error */
182 #define PI_ERR_SYSCMD_ADDR_A 0x00020000
183 #define PI_ERR_BAD_SPOOL_B 0x00040000 /* Error spooling to memory */
184 #define PI_ERR_BAD_SPOOL_A 0x00080000
185 #define PI_ERR_UNCAC_UNCORR_B 0x00100000 /* Uncached uncorrectable */
186 #define PI_ERR_UNCAC_UNCORR_A 0x00200000
187 #define PI_ERR_SYSSTATE_TAG_B 0x00400000 /* SysState tag parity error */
188 #define PI_ERR_SYSSTATE_TAG_A 0x00800000
189 #define PI_ERR_MD_UNCORR 0x01000000 /* Must be cleared in MD */
190
191 #define PI_ERR_CLEAR_ALL_A 0x00aaaaaa
192 #define PI_ERR_CLEAR_ALL_B 0x00555555
193
194
195 /*
196 * The following three macros define all possible error int pends.
197 */
198
199 #define PI_FATAL_ERR_CPU_A (PI_ERR_SYSSTATE_TAG_A | \
200 PI_ERR_BAD_SPOOL_A | \
201 PI_ERR_SYSCMD_ADDR_A | \
202 PI_ERR_SYSCMD_DATA_A | \
203 PI_ERR_SYSAD_ADDR_A | \
204 PI_ERR_SYSAD_DATA_A | \
205 PI_ERR_SYSSTATE_A)
206
207 #define PI_MISC_ERR_CPU_A (PI_ERR_UNCAC_UNCORR_A | \
208 PI_ERR_WRB_WERR_A | \
209 PI_ERR_WRB_TERR_A | \
210 PI_ERR_SPUR_MSG_A | \
211 PI_ERR_SPOOL_CMP_A)
212
213 #define PI_FATAL_ERR_CPU_B (PI_ERR_SYSSTATE_TAG_B | \
214 PI_ERR_BAD_SPOOL_B | \
215 PI_ERR_SYSCMD_ADDR_B | \
216 PI_ERR_SYSCMD_DATA_B | \
217 PI_ERR_SYSAD_ADDR_B | \
218 PI_ERR_SYSAD_DATA_B | \
219 PI_ERR_SYSSTATE_B)
220
221 #define PI_MISC_ERR_CPU_B (PI_ERR_UNCAC_UNCORR_B | \
222 PI_ERR_WRB_WERR_B | \
223 PI_ERR_WRB_TERR_B | \
224 PI_ERR_SPUR_MSG_B | \
225 PI_ERR_SPOOL_CMP_B)
226
227 #define PI_ERR_GENERIC (PI_ERR_MD_UNCORR)
228
229 /*
230 * Error types for PI_ERR_STATUS0_[AB] and error stack:
231 * Use the write types if WRBRRB is 1 else use the read types
232 */
233
234 /* Fields in PI_ERR_STATUS0_[AB] */
235 #define PI_ERR_ST0_TYPE_MASK 0x0000000000000007
236 #define PI_ERR_ST0_TYPE_SHFT 0
237 #define PI_ERR_ST0_REQNUM_MASK 0x0000000000000038
238 #define PI_ERR_ST0_REQNUM_SHFT 3
239 #define PI_ERR_ST0_SUPPL_MASK 0x000000000001ffc0
240 #define PI_ERR_ST0_SUPPL_SHFT 6
241 #define PI_ERR_ST0_CMD_MASK 0x0000000001fe0000
242 #define PI_ERR_ST0_CMD_SHFT 17
243 #define PI_ERR_ST0_ADDR_MASK 0x3ffffffffe000000
244 #define PI_ERR_ST0_ADDR_SHFT 25
245 #define PI_ERR_ST0_OVERRUN_MASK 0x4000000000000000
246 #define PI_ERR_ST0_OVERRUN_SHFT 62
247 #define PI_ERR_ST0_VALID_MASK 0x8000000000000000
248 #define PI_ERR_ST0_VALID_SHFT 63
249
250 /* Fields in PI_ERR_STATUS1_[AB] */
251 #define PI_ERR_ST1_SPOOL_MASK 0x00000000001fffff
252 #define PI_ERR_ST1_SPOOL_SHFT 0
253 #define PI_ERR_ST1_TOUTCNT_MASK 0x000000001fe00000
254 #define PI_ERR_ST1_TOUTCNT_SHFT 21
255 #define PI_ERR_ST1_INVCNT_MASK 0x0000007fe0000000
256 #define PI_ERR_ST1_INVCNT_SHFT 29
257 #define PI_ERR_ST1_CRBNUM_MASK 0x0000038000000000
258 #define PI_ERR_ST1_CRBNUM_SHFT 39
259 #define PI_ERR_ST1_WRBRRB_MASK 0x0000040000000000
260 #define PI_ERR_ST1_WRBRRB_SHFT 42
261 #define PI_ERR_ST1_CRBSTAT_MASK 0x001ff80000000000
262 #define PI_ERR_ST1_CRBSTAT_SHFT 43
263 #define PI_ERR_ST1_MSGSRC_MASK 0xffe0000000000000
264 #define PI_ERR_ST1_MSGSRC_SHFT 53
265
266 /* Fields in the error stack */
267 #define PI_ERR_STK_TYPE_MASK 0x0000000000000003
268 #define PI_ERR_STK_TYPE_SHFT 0
269 #define PI_ERR_STK_SUPPL_MASK 0x0000000000000038
270 #define PI_ERR_STK_SUPPL_SHFT 3
271 #define PI_ERR_STK_REQNUM_MASK 0x00000000000001c0
272 #define PI_ERR_STK_REQNUM_SHFT 6
273 #define PI_ERR_STK_CRBNUM_MASK 0x0000000000000e00
274 #define PI_ERR_STK_CRBNUM_SHFT 9
275 #define PI_ERR_STK_WRBRRB_MASK 0x0000000000001000
276 #define PI_ERR_STK_WRBRRB_SHFT 12
277 #define PI_ERR_STK_CRBSTAT_MASK 0x00000000007fe000
278 #define PI_ERR_STK_CRBSTAT_SHFT 13
279 #define PI_ERR_STK_CMD_MASK 0x000000007f800000
280 #define PI_ERR_STK_CMD_SHFT 23
281 #define PI_ERR_STK_ADDR_MASK 0xffffffff80000000
282 #define PI_ERR_STK_ADDR_SHFT 31
283
284 /* Error type in the error status or stack on Read CRBs */
285 #define PI_ERR_RD_PRERR 1
286 #define PI_ERR_RD_DERR 2
287 #define PI_ERR_RD_TERR 3
288
289 /* Error type in the error status or stack on Write CRBs */
290 #define PI_ERR_WR_WERR 0
291 #define PI_ERR_WR_PWERR 1
292 #define PI_ERR_WR_TERR 3
293
294 /* Read or Write CRB in error status or stack */
295 #define PI_ERR_RRB 0
296 #define PI_ERR_WRB 1
297 #define PI_ERR_ANY_CRB 2
298
299 /* Address masks in the error status and error stack are not the same */
300 #define ERR_STK_ADDR_SHFT 7
301 #define ERR_STAT0_ADDR_SHFT 3
302
303 #define PI_MIN_STACK_SIZE 4096 /* For figuring out the size to set */
304 #define PI_STACK_SIZE_SHFT 12 /* 4k */
305
306 #define ERR_STACK_SIZE_BYTES(_sz) \
307 ((_sz) ? (PI_MIN_STACK_SIZE << ((_sz) - 1)) : 0)
308
309 #ifndef __ASSEMBLY__
310 /*
311 * format of error stack and error status registers.
312 */
313
314 struct err_stack_format {
315 u64 sk_addr : 33, /* address */
316 sk_cmd : 8, /* message command */
317 sk_crb_sts : 10, /* status from RRB or WRB */
318 sk_rw_rb : 1, /* RRB == 0, WRB == 1 */
319 sk_crb_num : 3, /* WRB (0 to 7) or RRB (0 to 4) */
320 sk_t5_req : 3, /* RRB T5 request number */
321 sk_suppl : 3, /* lowest 3 bit of supplemental */
322 sk_err_type: 3; /* error type */
323 };
324
325 typedef union pi_err_stack {
326 u64 pi_stk_word;
327 struct err_stack_format pi_stk_fmt;
328 } pi_err_stack_t;
329
330 struct err_status0_format {
331 u64 s0_valid : 1, /* Valid */
332 s0_ovr_run : 1, /* Overrun, spooled to memory */
333 s0_addr : 37, /* address */
334 s0_cmd : 8, /* message command */
335 s0_supl : 11, /* message supplemental field */
336 s0_t5_req : 3, /* RRB T5 request number */
337 s0_err_type: 3; /* error type */
338 };
339
340 typedef union pi_err_stat0 {
341 u64 pi_stat0_word;
342 struct err_status0_format pi_stat0_fmt;
343 } pi_err_stat0_t;
344
345 struct err_status1_format {
346 u64 s1_src : 11, /* message source */
347 s1_crb_sts : 10, /* status from RRB or WRB */
348 s1_rw_rb : 1, /* RRB == 0, WRB == 1 */
349 s1_crb_num : 3, /* WRB (0 to 7) or RRB (0 to 4) */
350 s1_inval_cnt:10, /* signed invalidate counter RRB */
351 s1_to_cnt : 8, /* crb timeout counter */
352 s1_spl_cnt : 21; /* number spooled to memory */
353 };
354
355 typedef union pi_err_stat1 {
356 u64 pi_stat1_word;
357 struct err_status1_format pi_stat1_fmt;
358 } pi_err_stat1_t;
359
360 typedef u64 rtc_time_t;
361
362 #endif /* !__ASSEMBLY__ */
363
364
365 /* Bits in PI_SYSAD_ERRCHK_EN */
366 #define PI_SYSAD_ERRCHK_ECCGEN 0x01 /* Enable ECC generation */
367 #define PI_SYSAD_ERRCHK_QUALGEN 0x02 /* Enable data quality signal gen. */
368 #define PI_SYSAD_ERRCHK_SADP 0x04 /* Enable SysAD parity checking */
369 #define PI_SYSAD_ERRCHK_CMDP 0x08 /* Enable SysCmd parity checking */
370 #define PI_SYSAD_ERRCHK_STATE 0x10 /* Enable SysState parity checking */
371 #define PI_SYSAD_ERRCHK_QUAL 0x20 /* Enable data quality checking */
372 #define PI_SYSAD_CHECK_ALL 0x3f /* Generate and check all signals. */
373
374 /* Interrupt pending bits on R10000 */
375
376 #define HUB_IP_PEND0 0x0400
377 #define HUB_IP_PEND1_CC 0x0800
378 #define HUB_IP_RT 0x1000
379 #define HUB_IP_PROF 0x2000
380 #define HUB_IP_ERROR 0x4000
381 #define HUB_IP_MASK 0x7c00
382
383 /* PI_RT_LOCAL_CTRL mask and shift definitions */
384
385 #define PRLC_USE_INT_SHFT 16
386 #define PRLC_USE_INT_MASK (UINT64_CAST 1 << 16)
387 #define PRLC_USE_INT (UINT64_CAST 1 << 16)
388 #define PRLC_GCLK_SHFT 15
389 #define PRLC_GCLK_MASK (UINT64_CAST 1 << 15)
390 #define PRLC_GCLK (UINT64_CAST 1 << 15)
391 #define PRLC_GCLK_COUNT_SHFT 8
392 #define PRLC_GCLK_COUNT_MASK (UINT64_CAST 0x7f << 8)
393 #define PRLC_MAX_COUNT_SHFT 1
394 #define PRLC_MAX_COUNT_MASK (UINT64_CAST 0x7f << 1)
395 #define PRLC_GCLK_EN_SHFT 0
396 #define PRLC_GCLK_EN_MASK (UINT64_CAST 1)
397 #define PRLC_GCLK_EN (UINT64_CAST 1)
398
399 /* PI_RT_FILTER_CTRL mask and shift definitions */
400
401 /*
402 * Bits for NACK_CNT_A/B and NACK_CMP
403 */
404 #define PI_NACK_CNT_EN_SHFT 20
405 #define PI_NACK_CNT_EN_MASK 0x100000
406 #define PI_NACK_CNT_MASK 0x0fffff
407 #define PI_NACK_CNT_MAX 0x0fffff
408
409 #endif /* _ASM_SN_SN0_HUBPI_H */
410
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