summaryrefslogtreecommitdiffstats
path: root/include/asm-mips/sn/addrs.h
blob: 6c8a5577ddf1c953575791b2ef2ddc4eb11d7224 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1992 - 1997, 1999, 2000 Silicon Graphics, Inc.
 * Copyright (C) 1999, 2000 by Ralf Baechle
 */
#ifndef _ASM_SN_ADDRS_H
#define _ASM_SN_ADDRS_H

#include <linux/config.h>

#ifndef __ASSEMBLY__
#include <linux/types.h>
#endif /* !__ASSEMBLY__ */

#include <asm/addrspace.h>
#include <asm/sn/kldir.h>

#if defined(CONFIG_SGI_IP27)
#include <asm/sn/sn0/addrs.h>
#elif defined(CONFIG_SGI_IP35)
#include <asm/sn/sn1/addrs.h>
#endif


#ifndef __ASSEMBLY__

#define PS_UINT_CAST		(unsigned long)
#define UINT64_CAST		(unsigned long)

#define HUBREG_CAST		(volatile hubreg_t *)

#else /* __ASSEMBLY__ */

#define PS_UINT_CAST
#define UINT64_CAST
#define HUBREG_CAST

#endif /* __ASSEMBLY__ */


#define NASID_GET_META(_n)	((_n) >> NASID_LOCAL_BITS)
#ifdef CONFIG_SGI_IP27
#define NASID_GET_LOCAL(_n)	((_n) & 0xf)
#endif
#define NASID_MAKE(_m, _l)	(((_m) << NASID_LOCAL_BITS) | (_l))

#define NODE_ADDRSPACE_MASK	(NODE_ADDRSPACE_SIZE - 1)
#define TO_NODE_ADDRSPACE(_pa)	(UINT64_CAST (_pa) & NODE_ADDRSPACE_MASK)

#define CHANGE_ADDR_NASID(_pa, _nasid)	\
		((UINT64_CAST (_pa) & ~NASID_MASK) | \
		 (UINT64_CAST(_nasid) <<  NASID_SHFT))


/*
 * The following macros are used to index to the beginning of a specific
 * node's address space.
 */

#define NODE_OFFSET(_n)		(UINT64_CAST (_n) << NODE_SIZE_BITS)

#define NODE_CAC_BASE(_n)	(CAC_BASE   + NODE_OFFSET(_n))
#define NODE_HSPEC_BASE(_n)	(HSPEC_BASE + NODE_OFFSET(_n))
#define NODE_IO_BASE(_n)	(IO_BASE    + NODE_OFFSET(_n))
#define NODE_MSPEC_BASE(_n)	(MSPEC_BASE + NODE_OFFSET(_n))
#define NODE_UNCAC_BASE(_n)	(UNCAC_BASE + NODE_OFFSET(_n))

#define TO_NODE(_n, _x)		(NODE_OFFSET(_n)     | ((_x)		   ))
#define TO_NODE_CAC(_n, _x)	(NODE_CAC_BASE(_n)   | ((_x) & TO_PHYS_MASK))
#define TO_NODE_UNCAC(_n, _x)	(NODE_UNCAC_BASE(_n) | ((_x) & TO_PHYS_MASK))
#define TO_NODE_MSPEC(_n, _x)	(NODE_MSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK))
#define TO_NODE_HSPEC(_n, _x)	(NODE_HSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK))


#define RAW_NODE_SWIN_BASE(nasid, widget)				\
	(NODE_IO_BASE(nasid) + (UINT64_CAST (widget) << SWIN_SIZE_BITS))

#define WIDGETID_GET(addr)	((unsigned char)((addr >> SWIN_SIZE_BITS) & 0xff))

/*
 * The following definitions pertain to the IO special address
 * space.  They define the location of the big and little windows
 * of any given node.
 */

#define SWIN_SIZE_BITS		24
#define SWIN_SIZE		(UINT64_CAST 1 << 24)
#define	SWIN_SIZEMASK		(SWIN_SIZE - 1)
#define	SWIN_WIDGET_MASK	0xF

/*
 * Convert smallwindow address to xtalk address.
 *
 * 'addr' can be physical or virtual address, but will be converted
 * to Xtalk address in the range 0 -> SWINZ_SIZEMASK
 */
#define	SWIN_WIDGETADDR(addr)	((addr) & SWIN_SIZEMASK)
#define	SWIN_WIDGETNUM(addr)	(((addr)  >> SWIN_SIZE_BITS) & SWIN_WIDGET_MASK)
/*
 * Verify if addr belongs to small window address on node with "nasid"
 *
 *
 * NOTE: "addr" is expected to be XKPHYS address, and NOT physical
 * address
 *
 *
 */
#define	NODE_SWIN_ADDR(nasid, addr)	\
		(((addr) >= NODE_SWIN_BASE(nasid, 0))  && \
		 ((addr) <  (NODE_SWIN_BASE(nasid, HUB_NUM_WIDGET) + SWIN_SIZE)\
		 ))

/*
 * The following define the major position-independent aliases used
 * in SN.
 *	UALIAS -- 256MB in size, reads in the UALIAS result in
 *			uncached references to the memory of the reader's node.
 *	CPU_UALIAS -- 128kb in size, the bottom part of UALIAS is flipped
 *			depending on which CPU does the access to provide
 *			all CPUs with unique uncached memory at low addresses.
 *	LBOOT  -- 256MB in size, reads in the LBOOT area result in
 *			uncached references to the local hub's boot prom and
 *			other directory-bus connected devices.
 *	IALIAS -- 8MB in size, reads in the IALIAS result in uncached
 *			references to the local hub's registers.
 */

#define UALIAS_BASE		HSPEC_BASE
#define UALIAS_SIZE		0x10000000	/* 256 Megabytes */
#define UALIAS_LIMIT		(UALIAS_BASE + UALIAS_SIZE)

/*
 * The bottom of ualias space is flipped depending on whether you're
 * processor 0 or 1 within a node.
 */
#ifdef CONFIG_SGI_IP27
#define UALIAS_FLIP_BASE	UALIAS_BASE
#define UALIAS_FLIP_SIZE	0x20000
#define UALIAS_FLIP_BIT		0x10000
#define UALIAS_FLIP_ADDR(_x)	(cputoslice(smp_processor_id()) ? \
				 (_x) ^ UALIAS_FLIP_BIT : (_x))

#define LBOOT_BASE		(HSPEC_BASE + 0x10000000)
#define LBOOT_SIZE		0x10000000
#define LBOOT_LIMIT		(LBOOT_BASE + LBOOT_SIZE)
#define LBOOT_STRIDE		0		/* IP27 has only one CPU PROM */

#endif

#define	HUB_REGISTER_WIDGET	1
#define IALIAS_BASE		NODE_SWIN_BASE(0, HUB_REGISTER_WIDGET)
#define IALIAS_SIZE		0x800000	/* 8 Megabytes */
#define IS_IALIAS(_a)		(((_a) >= IALIAS_BASE) &&		\
				 ((_a) < (IALIAS_BASE + IALIAS_SIZE)))

/*
 * Macro for referring to Hub's RBOOT space
 */

#ifdef CONFIG_SGI_IP27
#define RBOOT_SIZE		0x10000000	/* 256 Megabytes */
#define NODE_RBOOT_BASE(_n)	(NODE_HSPEC_BASE(_n) + 0x30000000)
#define NODE_RBOOT_LIMIT(_n)	(NODE_RBOOT_BASE(_n) + RBOOT_SIZE)

#endif

/*
 * Macros for referring the Hub's back door space
 *
 *   These macros correctly process addresses in any node's space.
 *   WARNING: They won't work in assembler.
 *
 *   BDDIR_ENTRY_LO returns the address of the low double-word of the dir
 *                  entry corresponding to a physical (Cac or Uncac) address.
 *   BDDIR_ENTRY_HI returns the address of the high double-word of the entry.
 *   BDPRT_ENTRY    returns the address of the double-word protection entry
 *                  corresponding to the page containing the physical address.
 *   BDPRT_ENTRY_S  Stores the value into the protection entry.
 *   BDPRT_ENTRY_L  Load the value from the protection entry.
 *   BDECC_ENTRY    returns the address of the ECC byte corresponding to a
 *                  double-word at a specified physical address.
 *   BDECC_ENTRY_H  returns the address of the two ECC bytes corresponding to a
 *                  quad-word at a specified physical address.
 */
#define NODE_BDOOR_BASE(_n)	(NODE_HSPEC_BASE(_n) + (NODE_ADDRSPACE_SIZE/2))

#define NODE_BDECC_BASE(_n)	(NODE_BDOOR_BASE(_n))
#define NODE_BDDIR_BASE(_n)	(NODE_BDOOR_BASE(_n) + (NODE_ADDRSPACE_SIZE/4))
#ifdef CONFIG_SGI_IP27
#define BDDIR_ENTRY_LO(_pa)	((HSPEC_BASE +				      \
				  NODE_ADDRSPACE_SIZE * 3 / 4 +		      \
				  0x200)				    | \
				 UINT64_CAST (_pa)	 & NASID_MASK	    | \
				 UINT64_CAST (_pa) >> 2 & BDDIR_UPPER_MASK  | \
				 UINT64_CAST (_pa) >> 3 & 0x1f << 4)

#define BDDIR_ENTRY_HI(_pa)	((HSPEC_BASE +				      \
				  NODE_ADDRSPACE_SIZE * 3 / 4 +		      \
				  0x208)				    | \
				 UINT64_CAST (_pa)	 & NASID_MASK	    | \
				 UINT64_CAST (_pa) >> 2 & BDDIR_UPPER_MASK  | \
				 UINT64_CAST (_pa) >> 3 & 0x1f << 4)

#define BDPRT_ENTRY(_pa, _rgn)	((HSPEC_BASE +				      \
				  NODE_ADDRSPACE_SIZE * 3 / 4)		    | \
				 UINT64_CAST (_pa)	 & NASID_MASK	    | \
				 UINT64_CAST (_pa) >> 2 & BDDIR_UPPER_MASK  | \
				 (_rgn) << 3)
#define BDPRT_ENTRY_ADDR(_pa,_rgn) (BDPRT_ENTRY((_pa),(_rgn)))
#define BDPRT_ENTRY_S(_pa,_rgn,_val) (*(__psunsigned_t *)BDPRT_ENTRY((_pa),(_rgn))=(_val))
#define BDPRT_ENTRY_L(_pa,_rgn)	(*(__psunsigned_t *)BDPRT_ENTRY((_pa),(_rgn)))

#define BDECC_ENTRY(_pa)	((HSPEC_BASE +				      \
				  NODE_ADDRSPACE_SIZE / 2)		    | \
				 UINT64_CAST (_pa)	 & NASID_MASK	    | \
				 UINT64_CAST (_pa) >> 2 & BDECC_UPPER_MASK  | \
				 UINT64_CAST (_pa) >> 3 & 3)

/*
 * Macro to convert a back door directory or protection address into the
 *   raw physical address of the associated cache line or protection page.
 */
#define BDADDR_IS_DIR(_ba)	((UINT64_CAST  (_ba) & 0x200) != 0)
#define BDADDR_IS_PRT(_ba)	((UINT64_CAST  (_ba) & 0x200) == 0)

#define BDDIR_TO_MEM(_ba)	(UINT64_CAST  (_ba) & NASID_MASK            | \
				 (UINT64_CAST (_ba) & BDDIR_UPPER_MASK)<<2  | \
				 (UINT64_CAST (_ba) & 0x1f << 4) << 3)

#define BDPRT_TO_MEM(_ba) 	(UINT64_CAST  (_ba) & NASID_MASK	    | \
				 (UINT64_CAST (_ba) & BDDIR_UPPER_MASK)<<2)

#define BDECC_TO_MEM(_ba)	(UINT64_CAST  (_ba) & NASID_MASK	    | \
				 (UINT64_CAST (_ba) & BDECC_UPPER_MASK)<<2  | \
				 (UINT64_CAST (_ba) & 3) << 3)
#endif /* CONFIG_SGI_IP27 */


/*
 * The following macros produce the correct base virtual address for
 * the hub registers.  The LOCAL_HUB_* macros produce the appropriate
 * address for the local registers.  The REMOTE_HUB_* macro produce
 * the address for the specified hub's registers.  The intent is
 * that the appropriate PI, MD, NI, or II register would be substituted
 * for _x.
 */

/*
 * WARNING:
 *	When certain Hub chip workaround are defined, it's not sufficient
 *	to dereference the *_HUB_ADDR() macros.  You should instead use
 *	HUB_L() and HUB_S() if you must deal with pointers to hub registers.
 *	Otherwise, the recommended approach is to use *_HUB_L() and *_HUB_S().
 *	They're always safe.
 */
#define LOCAL_HUB_ADDR(_x)	(HUBREG_CAST (IALIAS_BASE + (_x)))
#define REMOTE_HUB_ADDR(_n, _x)	(HUBREG_CAST (NODE_SWIN_BASE(_n, 1) +	\
					      0x800000 + (_x)))
#ifdef CONFIG_SGI_IP27
#define REMOTE_HUB_PI_ADDR(_n, _sn, _x)	(HUBREG_CAST (NODE_SWIN_BASE(_n, 1) +	\
					      0x800000 + (_x)))
#endif /* CONFIG_SGI_IP27 */

#ifndef __ASSEMBLY__

#define HUB_L(_a)			*(_a)
#define	HUB_S(_a, _d)			*(_a) = (_d)

#define LOCAL_HUB_L(_r)			HUB_L(LOCAL_HUB_ADDR(_r))
#define LOCAL_HUB_S(_r, _d)		HUB_S(LOCAL_HUB_ADDR(_r), (_d))
#define REMOTE_HUB_L(_n, _r)		HUB_L(REMOTE_HUB_ADDR((_n), (_r)))
#define REMOTE_HUB_S(_n, _r, _d)	HUB_S(REMOTE_HUB_ADDR((_n), (_r)), (_d))
#define REMOTE_HUB_PI_L(_n, _sn, _r)	HUB_L(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)))
#define REMOTE_HUB_PI_S(_n, _sn, _r, _d) HUB_S(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)), (_d))

#endif /* !__ASSEMBLY__ */

/*
 * The following macros are used to get to a hub/bridge register, given
 * the base of the register space.
 */
#define HUB_REG_PTR(_base, _off)	\
	(HUBREG_CAST ((__psunsigned_t)(_base) + (__psunsigned_t)(_off)))

#define HUB_REG_PTR_L(_base, _off)	\
	HUB_L(HUB_REG_PTR((_base), (_off)))

#define HUB_REG_PTR_S(_base, _off, _data)	\
	HUB_S(HUB_REG_PTR((_base), (_off)), (_data))

/*
 * Software structure locations -- permanently fixed
 *    See diagram in kldir.h
 */

#define PHYS_RAMBASE		0x0
#define K0_RAMBASE		PHYS_TO_K0(PHYS_RAMBASE)

#define EX_HANDLER_OFFSET(slice) ((slice) << 16)
#define EX_HANDLER_ADDR(nasid, slice)					\
	PHYS_TO_K0(NODE_OFFSET(nasid) | EX_HANDLER_OFFSET(slice))
#define EX_HANDLER_SIZE		0x0400

#define EX_FRAME_OFFSET(slice)	((slice) << 16 | 0x400)
#define EX_FRAME_ADDR(nasid, slice)					\
	PHYS_TO_K0(NODE_OFFSET(nasid) | EX_FRAME_OFFSET(slice))
#define EX_FRAME_SIZE		0x0c00

#define ARCS_SPB_OFFSET		0x1000
#define ARCS_SPB_ADDR(nasid)						\
	PHYS_TO_K0(NODE_OFFSET(nasid) | ARCS_SPB_OFFSET)
#define ARCS_SPB_SIZE		0x0400

#define KLDIR_OFFSET		0x2000
#define KLDIR_ADDR(nasid)						\
	TO_NODE_UNCAC((nasid), KLDIR_OFFSET)
#define KLDIR_SIZE		0x0400


/*
 * Software structure locations -- indirected through KLDIR
 *    See diagram in kldir.h
 *
 * Important:	All low memory structures must only be accessed
 *		uncached, except for the symmon stacks.
 */

#define KLI_LAUNCH		0		/* Dir. entries */
#define KLI_KLCONFIG		1
#define	KLI_NMI			2
#define KLI_GDA			3
#define KLI_FREEMEM		4
#define	KLI_SYMMON_STK		5
#define KLI_PI_ERROR		6
#define KLI_KERN_VARS		7
#define	KLI_KERN_XP		8
#define	KLI_KERN_PARTID		9

#ifndef __ASSEMBLY__

#define KLD_BASE(nasid)		((kldir_ent_t *) KLDIR_ADDR(nasid))
#define KLD_LAUNCH(nasid)	(KLD_BASE(nasid) + KLI_LAUNCH)
#define KLD_NMI(nasid)		(KLD_BASE(nasid) + KLI_NMI)
#define KLD_KLCONFIG(nasid)	(KLD_BASE(nasid) + KLI_KLCONFIG)
#define KLD_PI_ERROR(nasid)	(KLD_BASE(nasid) + KLI_PI_ERROR)
#define KLD_GDA(nasid)		(KLD_BASE(nasid) + KLI_GDA)
#define KLD_SYMMON_STK(nasid)	(KLD_BASE(nasid) + KLI_SYMMON_STK)
#define KLD_FREEMEM(nasid)	(KLD_BASE(nasid) + KLI_FREEMEM)
#define KLD_KERN_VARS(nasid)	(KLD_BASE(nasid) + KLI_KERN_VARS)
#define	KLD_KERN_XP(nasid)	(KLD_BASE(nasid) + KLI_KERN_XP)
#define	KLD_KERN_PARTID(nasid)	(KLD_BASE(nasid) + KLI_KERN_PARTID)

#define LAUNCH_OFFSET(nasid, slice)					\
	(KLD_LAUNCH(nasid)->offset +					\
	 KLD_LAUNCH(nasid)->stride * (slice))
#define LAUNCH_ADDR(nasid, slice)					\
	TO_NODE_UNCAC((nasid), LAUNCH_OFFSET(nasid, slice))
#define LAUNCH_SIZE(nasid)	KLD_LAUNCH(nasid)->size

#define NMI_OFFSET(nasid, slice)					\
	(KLD_NMI(nasid)->offset +					\
	 KLD_NMI(nasid)->stride * (slice))
#define NMI_ADDR(nasid, slice)						\
	TO_NODE_UNCAC((nasid), NMI_OFFSET(nasid, slice))
#define NMI_SIZE(nasid)	KLD_NMI(nasid)->size

#define KLCONFIG_OFFSET(nasid)	KLD_KLCONFIG(nasid)->offset
#define KLCONFIG_ADDR(nasid)						\
	TO_NODE_UNCAC((nasid), KLCONFIG_OFFSET(nasid))
#define KLCONFIG_SIZE(nasid)	KLD_KLCONFIG(nasid)->size

#define GDA_ADDR(nasid)		KLD_GDA(nasid)->pointer
#define GDA_SIZE(nasid)		KLD_GDA(nasid)->size

#define SYMMON_STK_OFFSET(nasid, slice)					\
	(KLD_SYMMON_STK(nasid)->offset +				\
	 KLD_SYMMON_STK(nasid)->stride * (slice))
#define SYMMON_STK_STRIDE(nasid)	KLD_SYMMON_STK(nasid)->stride

#define SYMMON_STK_ADDR(nasid, slice)					\
	TO_NODE_CAC((nasid), SYMMON_STK_OFFSET(nasid, slice))

#define SYMMON_STK_SIZE(nasid)	KLD_SYMMON_STK(nasid)->stride

#define SYMMON_STK_END(nasid)	(SYMMON_STK_ADDR(nasid, 0) + KLD_SYMMON_STK(nasid)->size)

/* loading symmon 4k below UNIX. the arcs loader needs the topaddr for a
 * relocatable program
 */
#define	UNIX_DEBUG_LOADADDR	0x300000
#define	SYMMON_LOADADDR(nasid)						\
	TO_NODE(nasid, PHYS_TO_K0(UNIX_DEBUG_LOADADDR - 0x1000))

#define FREEMEM_OFFSET(nasid)	KLD_FREEMEM(nasid)->offset
#define FREEMEM_ADDR(nasid)	SYMMON_STK_END(nasid)
/*
 * XXX
 * Fix this. FREEMEM_ADDR should be aware of if symmon is loaded.
 * Also, it should take into account what prom thinks to be a safe
 * address
	PHYS_TO_K0(NODE_OFFSET(nasid) + FREEMEM_OFFSET(nasid))
 */
#define FREEMEM_SIZE(nasid)	KLD_FREEMEM(nasid)->size

#define PI_ERROR_OFFSET(nasid)	KLD_PI_ERROR(nasid)->offset
#define PI_ERROR_ADDR(nasid)						\
	TO_NODE_UNCAC((nasid), PI_ERROR_OFFSET(nasid))
#define PI_ERROR_SIZE(nasid)	KLD_PI_ERROR(nasid)->size

#define NODE_OFFSET_TO_K0(_nasid, _off)					\
	PHYS_TO_K0((NODE_OFFSET(_nasid) + (_off)) | CAC_BASE)
#define NODE_OFFSET_TO_K1(_nasid, _off)					\
	TO_UNCAC((NODE_OFFSET(_nasid) + (_off)) | UNCAC_BASE)
#define K0_TO_NODE_OFFSET(_k0addr)					\
	((__psunsigned_t)(_k0addr) & NODE_ADDRSPACE_MASK)

#define KERN_VARS_ADDR(nasid)	KLD_KERN_VARS(nasid)->pointer
#define KERN_VARS_SIZE(nasid)	KLD_KERN_VARS(nasid)->size

#define	KERN_XP_ADDR(nasid)	KLD_KERN_XP(nasid)->pointer
#define	KERN_XP_SIZE(nasid)	KLD_KERN_XP(nasid)->size

#define GPDA_ADDR(nasid)	TO_NODE_CAC(nasid, GPDA_OFFSET)

#endif /* !__ASSEMBLY__ */


#endif /* _ASM_SN_ADDRS_H */
OpenPOWER on IntegriCloud