summaryrefslogtreecommitdiff
path: root/arch/mips/include/asm/sgiarcs.h
blob: 721327f88601d870c0103f105167366479e6755e (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
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
/*
 * 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.
 *
 * ARC firmware interface defines.
 *
 * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
 * Copyright (C) 1999, 2001 Ralf Baechle (ralf@gnu.org)
 * Copyright (C) 1999 Silicon Graphics, Inc.
 */
#ifndef _ASM_SGIARCS_H
#define _ASM_SGIARCS_H

#include <asm/types.h>
#include <asm/fw/arc/types.h>

/* Various ARCS error codes. */
#define PROM_ESUCCESS                   0x00
#define PROM_E2BIG                      0x01
#define PROM_EACCESS                    0x02
#define PROM_EAGAIN                     0x03
#define PROM_EBADF                      0x04
#define PROM_EBUSY                      0x05
#define PROM_EFAULT                     0x06
#define PROM_EINVAL                     0x07
#define PROM_EIO                        0x08
#define PROM_EISDIR                     0x09
#define PROM_EMFILE                     0x0a
#define PROM_EMLINK                     0x0b
#define PROM_ENAMETOOLONG               0x0c
#define PROM_ENODEV                     0x0d
#define PROM_ENOENT                     0x0e
#define PROM_ENOEXEC                    0x0f
#define PROM_ENOMEM                     0x10
#define PROM_ENOSPC                     0x11
#define PROM_ENOTDIR                    0x12
#define PROM_ENOTTY                     0x13
#define PROM_ENXIO                      0x14
#define PROM_EROFS                      0x15
/* SGI ARCS specific errno's. */
#define PROM_EADDRNOTAVAIL              0x1f
#define PROM_ETIMEDOUT                  0x20
#define PROM_ECONNABORTED               0x21
#define PROM_ENOCONNECT                 0x22

/* Device classes, types, and identifiers for prom
 * device inventory queries.
 */
enum linux_devclass {
	system, processor, cache, adapter, controller, peripheral, memory
};

enum linux_devtypes {
	/* Generic stuff. */
	Arc, Cpu, Fpu,

	/* Primary insn and data caches. */
	picache, pdcache,

	/* Secondary insn, data, and combined caches. */
	sicache, sdcache, sccache,

	memdev, eisa_adapter, tc_adapter, scsi_adapter, dti_adapter,
	multifunc_adapter, dsk_controller, tp_controller, cdrom_controller,
	worm_controller, serial_controller, net_controller, disp_controller,
	parallel_controller, ptr_controller, kbd_controller, audio_controller,
	misc_controller, disk_peripheral, flpy_peripheral, tp_peripheral,
	modem_peripheral, monitor_peripheral, printer_peripheral,
	ptr_peripheral, kbd_peripheral, term_peripheral, line_peripheral,
	net_peripheral, misc_peripheral, anon
};

enum linux_identifier {
	bogus, ronly, removable, consin, consout, input, output
};

/* A prom device tree component. */
struct linux_component {
	enum linux_devclass     class;	/* node class */
	enum linux_devtypes     type;	/* node type */
	enum linux_identifier   iflags;	/* node flags */
	USHORT 			vers;	/* node version */
	USHORT 			rev;	/* node revision */
	ULONG 			key;	/* completely magic */
	ULONG 			amask;	/* XXX affinity mask??? */
	ULONG			cdsize;	/* size of configuration data */
	ULONG			ilen;	/* length of string identifier */
	_PULONG			iname;	/* string identifier */
};
typedef struct linux_component pcomponent;

struct linux_sysid {
	char vend[8], prod[8];
};

/* ARCS prom memory descriptors. */
enum arcs_memtypes {
	arcs_eblock,  /* exception block */
	arcs_rvpage,  /* ARCS romvec page */
	arcs_fcontig, /* Contiguous and free */
	arcs_free,    /* Generic free memory */
	arcs_bmem,    /* Borken memory, don't use */
	arcs_prog,    /* A loaded program resides here */
	arcs_atmp,    /* ARCS temporary storage area, wish Sparc OpenBoot told this */
	arcs_aperm,   /* ARCS permanent storage... */
};

/* ARC has slightly different types than ARCS */
enum arc_memtypes {
	arc_eblock,  /* exception block */
	arc_rvpage,  /* romvec page */
	arc_free,    /* Generic free memory */
	arc_bmem,    /* Borken memory, don't use */
	arc_prog,    /* A loaded program resides here */
	arc_atmp,    /* temporary storage area */
	arc_aperm,   /* permanent storage */
	arc_fcontig, /* Contiguous and free */
};

union linux_memtypes {
    enum arcs_memtypes arcs;
    enum arc_memtypes arc;
};

struct linux_mdesc {
	union linux_memtypes type;
	ULONG base;
	ULONG pages;
};

/* Time of day descriptor. */
struct linux_tinfo {
	unsigned short yr;
	unsigned short mnth;
	unsigned short day;
	unsigned short hr;
	unsigned short min;
	unsigned short sec;
	unsigned short msec;
};

/* ARCS virtual dirents. */
struct linux_vdirent {
	ULONG namelen;
	unsigned char attr;
	char fname[32]; /* XXX imperical, should be a define */
};

/* Other stuff for files. */
enum linux_omode {
	rdonly, wronly, rdwr, wronly_creat, rdwr_creat,
	wronly_ssede, rdwr_ssede, dirent, dirent_creat
};

enum linux_seekmode {
	absolute, relative
};

enum linux_mountops {
	media_load, media_unload
};

/* This prom has a bolixed design. */
struct linux_bigint {
#ifdef __MIPSEL__
	u32 lo;
	s32 hi;
#else /* !(__MIPSEL__) */
	s32 hi;
	u32 lo;
#endif
};

struct linux_finfo {
	struct linux_bigint   begin;
	struct linux_bigint   end;
	struct linux_bigint   cur;
	enum linux_devtypes   dtype;
	unsigned long         namelen;
	unsigned char         attr;
	char                  name[32]; /* XXX imperical, should be define */
};

/* This describes the vector containing function pointers to the ARC
   firmware functions.  */
struct linux_romvec {
	LONG	load;			/* Load an executable image. */
	LONG	invoke;			/* Invoke a standalong image. */
	LONG	exec;			/* Load and begin execution of a
					   standalone image. */
	LONG	halt;			/* Halt the machine. */
	LONG	pdown;			/* Power down the machine. */
	LONG	restart;		/* XXX soft reset??? */
	LONG	reboot;			/* Reboot the machine. */
	LONG	imode;			/* Enter PROM interactive mode. */
	LONG	_unused1;		/* Was ReturnFromMain(). */

	/* PROM device tree interface. */
	LONG	next_component;
	LONG	child_component;
	LONG	parent_component;
	LONG	component_data;
	LONG	child_add;
	LONG	comp_del;
	LONG	component_by_path;

	/* Misc. stuff. */
	LONG	cfg_save;
	LONG	get_sysid;

	/* Probing for memory. */
	LONG	get_mdesc;
	LONG	_unused2;		/* was Signal() */

	LONG	get_tinfo;
	LONG	get_rtime;

	/* File type operations. */
	LONG	get_vdirent;
	LONG	open;
	LONG	close;
	LONG	read;
	LONG	get_rstatus;
	LONG	write;
	LONG	seek;
	LONG	mount;

	/* Dealing with firmware environment variables. */
	LONG	get_evar;
	LONG	set_evar;

	LONG	get_finfo;
	LONG	set_finfo;

	/* Miscellaneous. */
	LONG	cache_flush;
	LONG	TestUnicodeCharacter;		/* ARC; not sure if ARCS too */
	LONG	GetDisplayStatus;
};

/* The SGI ARCS parameter block is in a fixed location for standalone
 * programs to access PROM facilities easily.
 */
typedef struct _SYSTEM_PARAMETER_BLOCK {
	ULONG			magic;		/* magic cookie */
#define PROMBLOCK_MAGIC      0x53435241

	ULONG			len;		/* length of parm block */
	USHORT			ver;		/* ARCS firmware version */
	USHORT			rev;		/* ARCS firmware revision */
	_PLONG			rs_block;	/* Restart block. */
	_PLONG			dbg_block;	/* Debug block. */
	_PLONG			gevect;		/* XXX General vector??? */
	_PLONG			utlbvect;	/* XXX UTLB vector??? */
	ULONG			rveclen;	/* Size of romvec struct. */
	_PVOID			romvec;		/* Function interface. */
	ULONG			pveclen;	/* Length of private vector. */
	_PVOID			pvector;	/* Private vector. */
	ULONG			adap_cnt;	/* Adapter count. */
	ULONG			adap_typ0;	/* First adapter type. */
	ULONG			adap_vcnt0;	/* Adapter 0 vector count. */
	_PVOID			adap_vector;	/* Adapter 0 vector ptr. */
	ULONG			adap_typ1;	/* Second adapter type. */
	ULONG			adap_vcnt1;	/* Adapter 1 vector count. */
	_PVOID			adap_vector1;	/* Adapter 1 vector ptr. */
	/* More adapter vectors go here... */
} SYSTEM_PARAMETER_BLOCK, *PSYSTEM_PARAMETER_BLOCK;

#define PROMBLOCK ((PSYSTEM_PARAMETER_BLOCK) (int)0xA0001000)
#define ROMVECTOR ((struct linux_romvec *) (long)(PROMBLOCK)->romvec)

/* Cache layout parameter block. */
union linux_cache_key {
	struct param {
#ifdef __MIPSEL__
		unsigned short size;
		unsigned char lsize;
		unsigned char bsize;
#else /* !(__MIPSEL__) */
		unsigned char bsize;
		unsigned char lsize;
		unsigned short size;
#endif
	} info;
	unsigned long allinfo;
};

/* Configuration data. */
struct linux_cdata {
	char *name;
	int mlen;
	enum linux_devtypes type;
};

/* Common SGI ARCS firmware file descriptors. */
#define SGIPROM_STDIN     0
#define SGIPROM_STDOUT    1

/* Common SGI ARCS firmware file types. */
#define SGIPROM_ROFILE    0x01  /* read-only file */
#define SGIPROM_HFILE     0x02  /* hidden file */
#define SGIPROM_SFILE     0x04  /* System file */
#define SGIPROM_AFILE     0x08  /* Archive file */
#define SGIPROM_DFILE     0x10  /* Directory file */
#define SGIPROM_DELFILE   0x20  /* Deleted file */

/* SGI ARCS boot record information. */
struct sgi_partition {
	unsigned char flag;
#define SGIPART_UNUSED 0x00
#define SGIPART_ACTIVE 0x80

	unsigned char shead, ssect, scyl; /* unused */
	unsigned char systype; /* OS type, Irix or NT */
	unsigned char ehead, esect, ecyl; /* unused */
	unsigned char rsect0, rsect1, rsect2, rsect3;
	unsigned char tsect0, tsect1, tsect2, tsect3;
};

#define SGIBBLOCK_MAGIC   0xaa55
#define SGIBBLOCK_MAXPART 0x0004

struct sgi_bootblock {
	unsigned char _unused[446];
	struct sgi_partition partitions[SGIBBLOCK_MAXPART];
	unsigned short magic;
};

/* BIOS parameter block. */
struct sgi_bparm_block {
	unsigned short bytes_sect;    /* bytes per sector */
	unsigned char  sect_clust;    /* sectors per cluster */
	unsigned short sect_resv;     /* reserved sectors */
	unsigned char  nfats;         /* # of allocation tables */
	unsigned short nroot_dirents; /* # of root directory entries */
	unsigned short sect_volume;   /* sectors in volume */
	unsigned char  media_type;    /* media descriptor */
	unsigned short sect_fat;      /* sectors per allocation table */
	unsigned short sect_track;    /* sectors per track */
	unsigned short nheads;        /* # of heads */
	unsigned short nhsects;       /* # of hidden sectors */
};

struct sgi_bsector {
	unsigned char   jmpinfo[3];
	unsigned char   manuf_name[8];
	struct sgi_bparm_block info;
};

/* Debugging block used with SGI symmon symbolic debugger. */
#define SMB_DEBUG_MAGIC   0xfeeddead
struct linux_smonblock {
	unsigned long   magic;
	void            (*handler)(void);  /* Breakpoint routine. */
	unsigned long   dtable_base;       /* Base addr of dbg table. */
	int             (*printf)(const char *fmt, ...);
	unsigned long   btable_base;       /* Breakpoint table. */
	unsigned long   mpflushreqs;       /* SMP cache flush request list. */
	unsigned long   ntab;              /* Name table. */
	unsigned long   stab;              /* Symbol table. */
	int             smax;              /* Max # of symbols. */
};

/*
 * Macros for calling a 32-bit ARC implementation from 64-bit code
 */

#if defined(CONFIG_64BIT) && defined(CONFIG_ARC32)

#define __arc_clobbers							\
	"$2", "$3" /* ... */, "$8", "$9", "$10", "$11", 			\
	"$12", "$13", "$14", "$15", "$16", "$24", "$25", "$31"

#define ARC_CALL0(dest)							\
({	long __res;							\
	long __vec = (long) romvec->dest;				\
	__asm__ __volatile__(						\
	"dsubu\t$29, 32\n\t"						\
	"jalr\t%1\n\t"							\
	"daddu\t$29, 32\n\t"						\
	"move\t%0, $2"							\
	: "=r" (__res), "=r" (__vec)					\
	: "1" (__vec)							\
	: __arc_clobbers, "$4", "$5", "$6", "$7");			\
	(unsigned long) __res;						\
})

#define ARC_CALL1(dest, a1)						\
({	long __res;							\
	register signed int __a1 __asm__("$4") = (int) (long) (a1);	\
	long __vec = (long) romvec->dest;				\
	__asm__ __volatile__(						\
	"dsubu\t$29, 32\n\t"						\
	"jalr\t%1\n\t"							\
	"daddu\t$29, 32\n\t"						\
	"move\t%0, $2"							\
	: "=r" (__res), "=r" (__vec)					\
	: "1" (__vec), "r" (__a1)					\
	: __arc_clobbers, "$5", "$6", "$7");				\
	(unsigned long) __res;						\
})

#define ARC_CALL2(dest, a1, a2)						\
({	long __res;							\
	register signed int __a1 __asm__("$4") = (int) (long) (a1);	\
	register signed int __a2 __asm__("$5") = (int) (long) (a2);	\
	long __vec = (long) romvec->dest;				\
	__asm__ __volatile__(						\
	"dsubu\t$29, 32\n\t"						\
	"jalr\t%1\n\t"							\
	"daddu\t$29, 32\n\t"						\
	"move\t%0, $2"							\
	: "=r" (__res), "=r" (__vec)					\
	: "1" (__vec), "r" (__a1), "r" (__a2)				\
	: __arc_clobbers, "$6", "$7");					\
	__res;								\
})

#define ARC_CALL3(dest, a1, a2, a3)					\
({	long __res;							\
	register signed int __a1 __asm__("$4") = (int) (long) (a1);	\
	register signed int __a2 __asm__("$5") = (int) (long) (a2);	\
	register signed int __a3 __asm__("$6") = (int) (long) (a3);	\
	long __vec = (long) romvec->dest;				\
	__asm__ __volatile__(						\
	"dsubu\t$29, 32\n\t"						\
	"jalr\t%1\n\t"							\
	"daddu\t$29, 32\n\t"						\
	"move\t%0, $2"							\
	: "=r" (__res), "=r" (__vec)					\
	: "1" (__vec), "r" (__a1), "r" (__a2), "r" (__a3)		\
	: __arc_clobbers, "$7");					\
	__res;								\
})

#define ARC_CALL4(dest, a1, a2, a3, a4)					\
({	long __res;							\
	register signed int __a1 __asm__("$4") = (int) (long) (a1);	\
	register signed int __a2 __asm__("$5") = (int) (long) (a2);	\
	register signed int __a3 __asm__("$6") = (int) (long) (a3);	\
	register signed int __a4 __asm__("$7") = (int) (long) (a4);	\
	long __vec = (long) romvec->dest;				\
	__asm__ __volatile__(						\
	"dsubu\t$29, 32\n\t"						\
	"jalr\t%1\n\t"							\
	"daddu\t$29, 32\n\t"						\
	"move\t%0, $2"							\
	: "=r" (__res), "=r" (__vec)					\
	: "1" (__vec), "r" (__a1), "r" (__a2), "r" (__a3), 		\
	  "r" (__a4)							\
	: __arc_clobbers);						\
	__res;								\
})

#define ARC_CALL5(dest, a1, a2, a3, a4, a5)					\
({	long __res;							\
	register signed int __a1 __asm__("$4") = (int) (long) (a1);	\
	register signed int __a2 __asm__("$5") = (int) (long) (a2);	\
	register signed int __a3 __asm__("$6") = (int) (long) (a3);	\
	register signed int __a4 __asm__("$7") = (int) (long) (a4);	\
	register signed int __a5 = (int) (long) (a5);			\
	long __vec = (long) romvec->dest;				\
	__asm__ __volatile__(						\
	"dsubu\t$29, 32\n\t"						\
	"sw\t%7, 16($29)\n\t"						\
	"jalr\t%1\n\t"							\
	"daddu\t$29, 32\n\t"						\
	"move\t%0, $2"							\
	: "=r" (__res), "=r" (__vec)					\
	: "1" (__vec), 							\
	  "r" (__a1), "r" (__a2), "r" (__a3), "r" (__a4), 		\
	  "r" (__a5)							\
	: __arc_clobbers);						\
	__res;								\
})

#endif /* defined(CONFIG_64BIT) && defined(CONFIG_ARC32) */

#if (defined(CONFIG_32BIT) && defined(CONFIG_ARC32)) ||		\
    (defined(CONFIG_64BIT) && defined(CONFIG_ARC64))

#define ARC_CALL0(dest)							\
({	long __res;							\
	long (*__vec)(void) = (void *) romvec->dest;			\
									\
	__res = __vec();						\
	__res;								\
})

#define ARC_CALL1(dest, a1)						\
({	long __res;							\
	long __a1 = (long) (a1);					\
	long (*__vec)(long) = (void *) romvec->dest;			\
									\
	__res = __vec(__a1);						\
	__res;								\
})

#define ARC_CALL2(dest, a1, a2)						\
({	long __res;							\
	long __a1 = (long) (a1);					\
	long __a2 = (long) (a2);					\
	long (*__vec)(long, long) = (void *) romvec->dest;		\
									\
	__res = __vec(__a1, __a2);					\
	__res;								\
})

#define ARC_CALL3(dest, a1, a2, a3)					\
({	long __res;							\
	long __a1 = (long) (a1);					\
	long __a2 = (long) (a2);					\
	long __a3 = (long) (a3);					\
	long (*__vec)(long, long, long)	= (void *) romvec->dest;	\
									\
	__res = __vec(__a1, __a2, __a3);				\
	__res;								\
})

#define ARC_CALL4(dest, a1, a2, a3, a4)					\
({	long __res;							\
	long __a1 = (long) (a1);					\
	long __a2 = (long) (a2);					\
	long __a3 = (long) (a3);					\
	long __a4 = (long) (a4);					\
	long (*__vec)(long, long, long, long) = (void *) romvec->dest;	\
									\
	__res = __vec(__a1, __a2, __a3, __a4);				\
	__res;								\
})

#define ARC_CALL5(dest, a1, a2, a3, a4, a5)				\
({	long __res;							\
	long __a1 = (long) (a1);					\
	long __a2 = (long) (a2);					\
	long __a3 = (long) (a3);					\
	long __a4 = (long) (a4);					\
	long __a5 = (long) (a5);					\
	long (*__vec)(long, long, long, long, long);			\
	__vec = (void *) romvec->dest;					\
									\
	__res = __vec(__a1, __a2, __a3, __a4, __a5);			\
	__res;								\
})
#endif /* both kernel and ARC either 32-bit or 64-bit */

#endif /* _ASM_SGIARCS_H */