Linux-2.6.12-rc2
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / include / asm-mips / sn / addrs.h
blob2b5cef1ba37fc9fbbc17aa92330036997afb3feb
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.
6 * Copyright (C) 1992 - 1997, 1999, 2000 Silicon Graphics, Inc.
7 * Copyright (C) 1999, 2000 by Ralf Baechle
8 */
9 #ifndef _ASM_SN_ADDRS_H
10 #define _ASM_SN_ADDRS_H
12 #include <linux/config.h>
14 #ifndef __ASSEMBLY__
15 #include <linux/types.h>
16 #endif /* !__ASSEMBLY__ */
18 #include <asm/addrspace.h>
19 #include <asm/sn/kldir.h>
21 #if defined(CONFIG_SGI_IP27)
22 #include <asm/sn/sn0/addrs.h>
23 #elif defined(CONFIG_SGI_IP35)
24 #include <asm/sn/sn1/addrs.h>
25 #endif
28 #ifndef __ASSEMBLY__
30 #if defined(CONFIG_SGI_IO) /* FIXME */
31 #define PS_UINT_CAST (__psunsigned_t)
32 #define UINT64_CAST (__uint64_t)
33 #else /* CONFIG_SGI_IO */
34 #define PS_UINT_CAST (unsigned long)
35 #define UINT64_CAST (unsigned long)
36 #endif /* CONFIG_SGI_IO */
38 #define HUBREG_CAST (volatile hubreg_t *)
40 #else /* __ASSEMBLY__ */
42 #define PS_UINT_CAST
43 #define UINT64_CAST
44 #define HUBREG_CAST
46 #endif /* __ASSEMBLY__ */
49 #define NASID_GET_META(_n) ((_n) >> NASID_LOCAL_BITS)
50 #ifdef CONFIG_SGI_IP27
51 #define NASID_GET_LOCAL(_n) ((_n) & 0xf)
52 #endif
53 #define NASID_MAKE(_m, _l) (((_m) << NASID_LOCAL_BITS) | (_l))
55 #define NODE_ADDRSPACE_MASK (NODE_ADDRSPACE_SIZE - 1)
56 #define TO_NODE_ADDRSPACE(_pa) (UINT64_CAST (_pa) & NODE_ADDRSPACE_MASK)
58 #define CHANGE_ADDR_NASID(_pa, _nasid) \
59 ((UINT64_CAST (_pa) & ~NASID_MASK) | \
60 (UINT64_CAST(_nasid) << NASID_SHFT))
64 * The following macros are used to index to the beginning of a specific
65 * node's address space.
68 #define NODE_OFFSET(_n) (UINT64_CAST (_n) << NODE_SIZE_BITS)
70 #define NODE_CAC_BASE(_n) (CAC_BASE + NODE_OFFSET(_n))
71 #define NODE_HSPEC_BASE(_n) (HSPEC_BASE + NODE_OFFSET(_n))
72 #define NODE_IO_BASE(_n) (IO_BASE + NODE_OFFSET(_n))
73 #define NODE_MSPEC_BASE(_n) (MSPEC_BASE + NODE_OFFSET(_n))
74 #define NODE_UNCAC_BASE(_n) (UNCAC_BASE + NODE_OFFSET(_n))
76 #define TO_NODE(_n, _x) (NODE_OFFSET(_n) | ((_x) ))
77 #define TO_NODE_CAC(_n, _x) (NODE_CAC_BASE(_n) | ((_x) & TO_PHYS_MASK))
78 #define TO_NODE_UNCAC(_n, _x) (NODE_UNCAC_BASE(_n) | ((_x) & TO_PHYS_MASK))
79 #define TO_NODE_MSPEC(_n, _x) (NODE_MSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK))
80 #define TO_NODE_HSPEC(_n, _x) (NODE_HSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK))
83 #define RAW_NODE_SWIN_BASE(nasid, widget) \
84 (NODE_IO_BASE(nasid) + (UINT64_CAST (widget) << SWIN_SIZE_BITS))
86 #define WIDGETID_GET(addr) ((unsigned char)((addr >> SWIN_SIZE_BITS) & 0xff))
89 * The following definitions pertain to the IO special address
90 * space. They define the location of the big and little windows
91 * of any given node.
94 #define SWIN_SIZE_BITS 24
95 #define SWIN_SIZE (UINT64_CAST 1 << 24)
96 #define SWIN_SIZEMASK (SWIN_SIZE - 1)
97 #define SWIN_WIDGET_MASK 0xF
100 * Convert smallwindow address to xtalk address.
102 * 'addr' can be physical or virtual address, but will be converted
103 * to Xtalk address in the range 0 -> SWINZ_SIZEMASK
105 #define SWIN_WIDGETADDR(addr) ((addr) & SWIN_SIZEMASK)
106 #define SWIN_WIDGETNUM(addr) (((addr) >> SWIN_SIZE_BITS) & SWIN_WIDGET_MASK)
108 * Verify if addr belongs to small window address on node with "nasid"
111 * NOTE: "addr" is expected to be XKPHYS address, and NOT physical
112 * address
116 #define NODE_SWIN_ADDR(nasid, addr) \
117 (((addr) >= NODE_SWIN_BASE(nasid, 0)) && \
118 ((addr) < (NODE_SWIN_BASE(nasid, HUB_NUM_WIDGET) + SWIN_SIZE)\
122 * The following define the major position-independent aliases used
123 * in SN.
124 * UALIAS -- 256MB in size, reads in the UALIAS result in
125 * uncached references to the memory of the reader's node.
126 * CPU_UALIAS -- 128kb in size, the bottom part of UALIAS is flipped
127 * depending on which CPU does the access to provide
128 * all CPUs with unique uncached memory at low addresses.
129 * LBOOT -- 256MB in size, reads in the LBOOT area result in
130 * uncached references to the local hub's boot prom and
131 * other directory-bus connected devices.
132 * IALIAS -- 8MB in size, reads in the IALIAS result in uncached
133 * references to the local hub's registers.
136 #define UALIAS_BASE HSPEC_BASE
137 #define UALIAS_SIZE 0x10000000 /* 256 Megabytes */
138 #define UALIAS_LIMIT (UALIAS_BASE + UALIAS_SIZE)
141 * The bottom of ualias space is flipped depending on whether you're
142 * processor 0 or 1 within a node.
144 #ifdef CONFIG_SGI_IP27
145 #define UALIAS_FLIP_BASE UALIAS_BASE
146 #define UALIAS_FLIP_SIZE 0x20000
147 #define UALIAS_FLIP_BIT 0x10000
148 #define UALIAS_FLIP_ADDR(_x) (cputoslice(smp_processor_id()) ? \
149 (_x) ^ UALIAS_FLIP_BIT : (_x))
151 #define LBOOT_BASE (HSPEC_BASE + 0x10000000)
152 #define LBOOT_SIZE 0x10000000
153 #define LBOOT_LIMIT (LBOOT_BASE + LBOOT_SIZE)
154 #define LBOOT_STRIDE 0 /* IP27 has only one CPU PROM */
156 #endif
158 #define HUB_REGISTER_WIDGET 1
159 #define IALIAS_BASE NODE_SWIN_BASE(0, HUB_REGISTER_WIDGET)
160 #define IALIAS_SIZE 0x800000 /* 8 Megabytes */
161 #define IS_IALIAS(_a) (((_a) >= IALIAS_BASE) && \
162 ((_a) < (IALIAS_BASE + IALIAS_SIZE)))
165 * Macro for referring to Hub's RBOOT space
168 #ifdef CONFIG_SGI_IP27
169 #define RBOOT_SIZE 0x10000000 /* 256 Megabytes */
170 #define NODE_RBOOT_BASE(_n) (NODE_HSPEC_BASE(_n) + 0x30000000)
171 #define NODE_RBOOT_LIMIT(_n) (NODE_RBOOT_BASE(_n) + RBOOT_SIZE)
173 #endif
176 * Macros for referring the Hub's back door space
178 * These macros correctly process addresses in any node's space.
179 * WARNING: They won't work in assembler.
181 * BDDIR_ENTRY_LO returns the address of the low double-word of the dir
182 * entry corresponding to a physical (Cac or Uncac) address.
183 * BDDIR_ENTRY_HI returns the address of the high double-word of the entry.
184 * BDPRT_ENTRY returns the address of the double-word protection entry
185 * corresponding to the page containing the physical address.
186 * BDPRT_ENTRY_S Stores the value into the protection entry.
187 * BDPRT_ENTRY_L Load the value from the protection entry.
188 * BDECC_ENTRY returns the address of the ECC byte corresponding to a
189 * double-word at a specified physical address.
190 * BDECC_ENTRY_H returns the address of the two ECC bytes corresponding to a
191 * quad-word at a specified physical address.
193 #define NODE_BDOOR_BASE(_n) (NODE_HSPEC_BASE(_n) + (NODE_ADDRSPACE_SIZE/2))
195 #define NODE_BDECC_BASE(_n) (NODE_BDOOR_BASE(_n))
196 #define NODE_BDDIR_BASE(_n) (NODE_BDOOR_BASE(_n) + (NODE_ADDRSPACE_SIZE/4))
197 #ifdef CONFIG_SGI_IP27
198 #define BDDIR_ENTRY_LO(_pa) ((HSPEC_BASE + \
199 NODE_ADDRSPACE_SIZE * 3 / 4 + \
200 0x200) | \
201 UINT64_CAST (_pa) & NASID_MASK | \
202 UINT64_CAST (_pa) >> 2 & BDDIR_UPPER_MASK | \
203 UINT64_CAST (_pa) >> 3 & 0x1f << 4)
205 #define BDDIR_ENTRY_HI(_pa) ((HSPEC_BASE + \
206 NODE_ADDRSPACE_SIZE * 3 / 4 + \
207 0x208) | \
208 UINT64_CAST (_pa) & NASID_MASK | \
209 UINT64_CAST (_pa) >> 2 & BDDIR_UPPER_MASK | \
210 UINT64_CAST (_pa) >> 3 & 0x1f << 4)
212 #define BDPRT_ENTRY(_pa, _rgn) ((HSPEC_BASE + \
213 NODE_ADDRSPACE_SIZE * 3 / 4) | \
214 UINT64_CAST (_pa) & NASID_MASK | \
215 UINT64_CAST (_pa) >> 2 & BDDIR_UPPER_MASK | \
216 (_rgn) << 3)
217 #define BDPRT_ENTRY_ADDR(_pa,_rgn) (BDPRT_ENTRY((_pa),(_rgn)))
218 #define BDPRT_ENTRY_S(_pa,_rgn,_val) (*(__psunsigned_t *)BDPRT_ENTRY((_pa),(_rgn))=(_val))
219 #define BDPRT_ENTRY_L(_pa,_rgn) (*(__psunsigned_t *)BDPRT_ENTRY((_pa),(_rgn)))
221 #define BDECC_ENTRY(_pa) ((HSPEC_BASE + \
222 NODE_ADDRSPACE_SIZE / 2) | \
223 UINT64_CAST (_pa) & NASID_MASK | \
224 UINT64_CAST (_pa) >> 2 & BDECC_UPPER_MASK | \
225 UINT64_CAST (_pa) >> 3 & 3)
228 * Macro to convert a back door directory or protection address into the
229 * raw physical address of the associated cache line or protection page.
231 #define BDADDR_IS_DIR(_ba) ((UINT64_CAST (_ba) & 0x200) != 0)
232 #define BDADDR_IS_PRT(_ba) ((UINT64_CAST (_ba) & 0x200) == 0)
234 #define BDDIR_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \
235 (UINT64_CAST (_ba) & BDDIR_UPPER_MASK)<<2 | \
236 (UINT64_CAST (_ba) & 0x1f << 4) << 3)
238 #define BDPRT_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \
239 (UINT64_CAST (_ba) & BDDIR_UPPER_MASK)<<2)
241 #define BDECC_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \
242 (UINT64_CAST (_ba) & BDECC_UPPER_MASK)<<2 | \
243 (UINT64_CAST (_ba) & 3) << 3)
244 #endif /* CONFIG_SGI_IP27 */
248 * The following macros produce the correct base virtual address for
249 * the hub registers. The LOCAL_HUB_* macros produce the appropriate
250 * address for the local registers. The REMOTE_HUB_* macro produce
251 * the address for the specified hub's registers. The intent is
252 * that the appropriate PI, MD, NI, or II register would be substituted
253 * for _x.
256 #ifdef _STANDALONE
258 /* DO NOT USE THESE DIRECTLY IN THE KERNEL. SEE BELOW. */
259 #define LOCAL_HUB(_x) (HUBREG_CAST (IALIAS_BASE + (_x)))
260 #define REMOTE_HUB(_n, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \
261 0x800000 + (_x)))
262 #endif /* _STANDALONE */
265 * WARNING:
266 * When certain Hub chip workaround are defined, it's not sufficient
267 * to dereference the *_HUB_ADDR() macros. You should instead use
268 * HUB_L() and HUB_S() if you must deal with pointers to hub registers.
269 * Otherwise, the recommended approach is to use *_HUB_L() and *_HUB_S().
270 * They're always safe.
272 #define LOCAL_HUB_ADDR(_x) (HUBREG_CAST (IALIAS_BASE + (_x)))
273 #define REMOTE_HUB_ADDR(_n, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \
274 0x800000 + (_x)))
275 #ifdef CONFIG_SGI_IP27
276 #define REMOTE_HUB_PI_ADDR(_n, _sn, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \
277 0x800000 + (_x)))
278 #endif /* CONFIG_SGI_IP27 */
280 #ifndef __ASSEMBLY__
282 #define HUB_L(_a) *(_a)
283 #define HUB_S(_a, _d) *(_a) = (_d)
285 #define LOCAL_HUB_L(_r) HUB_L(LOCAL_HUB_ADDR(_r))
286 #define LOCAL_HUB_S(_r, _d) HUB_S(LOCAL_HUB_ADDR(_r), (_d))
287 #define REMOTE_HUB_L(_n, _r) HUB_L(REMOTE_HUB_ADDR((_n), (_r)))
288 #define REMOTE_HUB_S(_n, _r, _d) HUB_S(REMOTE_HUB_ADDR((_n), (_r)), (_d))
289 #define REMOTE_HUB_PI_L(_n, _sn, _r) HUB_L(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)))
290 #define REMOTE_HUB_PI_S(_n, _sn, _r, _d) HUB_S(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)), (_d))
292 #endif /* !__ASSEMBLY__ */
295 * The following macros are used to get to a hub/bridge register, given
296 * the base of the register space.
298 #define HUB_REG_PTR(_base, _off) \
299 (HUBREG_CAST ((__psunsigned_t)(_base) + (__psunsigned_t)(_off)))
301 #define HUB_REG_PTR_L(_base, _off) \
302 HUB_L(HUB_REG_PTR((_base), (_off)))
304 #define HUB_REG_PTR_S(_base, _off, _data) \
305 HUB_S(HUB_REG_PTR((_base), (_off)), (_data))
308 * Software structure locations -- permanently fixed
309 * See diagram in kldir.h
312 #define PHYS_RAMBASE 0x0
313 #define K0_RAMBASE PHYS_TO_K0(PHYS_RAMBASE)
315 #define EX_HANDLER_OFFSET(slice) ((slice) << 16)
316 #define EX_HANDLER_ADDR(nasid, slice) \
317 PHYS_TO_K0(NODE_OFFSET(nasid) | EX_HANDLER_OFFSET(slice))
318 #define EX_HANDLER_SIZE 0x0400
320 #define EX_FRAME_OFFSET(slice) ((slice) << 16 | 0x400)
321 #define EX_FRAME_ADDR(nasid, slice) \
322 PHYS_TO_K0(NODE_OFFSET(nasid) | EX_FRAME_OFFSET(slice))
323 #define EX_FRAME_SIZE 0x0c00
325 #define ARCS_SPB_OFFSET 0x1000
326 #define ARCS_SPB_ADDR(nasid) \
327 PHYS_TO_K0(NODE_OFFSET(nasid) | ARCS_SPB_OFFSET)
328 #define ARCS_SPB_SIZE 0x0400
330 #ifdef _STANDALONE
332 #define ARCS_TVECTOR_OFFSET 0x2800
333 #define ARCS_PVECTOR_OFFSET 0x2c00
336 * These addresses are used by the master CPU to install the transfer
337 * and private vectors. All others use the SPB to find them.
339 #define TVADDR (NODE_CAC_BASE(get_nasid()) + ARCS_TVECTOR_OFFSET)
340 #define PVADDR (NODE_CAC_BASE(get_nasid()) + ARCS_PVECTOR_OFFSET)
342 #endif /* _STANDALONE */
344 #define KLDIR_OFFSET 0x2000
345 #define KLDIR_ADDR(nasid) \
346 TO_NODE_UNCAC((nasid), KLDIR_OFFSET)
347 #define KLDIR_SIZE 0x0400
351 * Software structure locations -- indirected through KLDIR
352 * See diagram in kldir.h
354 * Important: All low memory structures must only be accessed
355 * uncached, except for the symmon stacks.
358 #define KLI_LAUNCH 0 /* Dir. entries */
359 #define KLI_KLCONFIG 1
360 #define KLI_NMI 2
361 #define KLI_GDA 3
362 #define KLI_FREEMEM 4
363 #define KLI_SYMMON_STK 5
364 #define KLI_PI_ERROR 6
365 #define KLI_KERN_VARS 7
366 #define KLI_KERN_XP 8
367 #define KLI_KERN_PARTID 9
369 #ifndef __ASSEMBLY__
371 #define KLD_BASE(nasid) ((kldir_ent_t *) KLDIR_ADDR(nasid))
372 #define KLD_LAUNCH(nasid) (KLD_BASE(nasid) + KLI_LAUNCH)
373 #define KLD_NMI(nasid) (KLD_BASE(nasid) + KLI_NMI)
374 #define KLD_KLCONFIG(nasid) (KLD_BASE(nasid) + KLI_KLCONFIG)
375 #define KLD_PI_ERROR(nasid) (KLD_BASE(nasid) + KLI_PI_ERROR)
376 #define KLD_GDA(nasid) (KLD_BASE(nasid) + KLI_GDA)
377 #define KLD_SYMMON_STK(nasid) (KLD_BASE(nasid) + KLI_SYMMON_STK)
378 #define KLD_FREEMEM(nasid) (KLD_BASE(nasid) + KLI_FREEMEM)
379 #define KLD_KERN_VARS(nasid) (KLD_BASE(nasid) + KLI_KERN_VARS)
380 #define KLD_KERN_XP(nasid) (KLD_BASE(nasid) + KLI_KERN_XP)
381 #define KLD_KERN_PARTID(nasid) (KLD_BASE(nasid) + KLI_KERN_PARTID)
383 #define LAUNCH_OFFSET(nasid, slice) \
384 (KLD_LAUNCH(nasid)->offset + \
385 KLD_LAUNCH(nasid)->stride * (slice))
386 #define LAUNCH_ADDR(nasid, slice) \
387 TO_NODE_UNCAC((nasid), LAUNCH_OFFSET(nasid, slice))
388 #define LAUNCH_SIZE(nasid) KLD_LAUNCH(nasid)->size
390 #define NMI_OFFSET(nasid, slice) \
391 (KLD_NMI(nasid)->offset + \
392 KLD_NMI(nasid)->stride * (slice))
393 #define NMI_ADDR(nasid, slice) \
394 TO_NODE_UNCAC((nasid), NMI_OFFSET(nasid, slice))
395 #define NMI_SIZE(nasid) KLD_NMI(nasid)->size
397 #define KLCONFIG_OFFSET(nasid) KLD_KLCONFIG(nasid)->offset
398 #define KLCONFIG_ADDR(nasid) \
399 TO_NODE_UNCAC((nasid), KLCONFIG_OFFSET(nasid))
400 #define KLCONFIG_SIZE(nasid) KLD_KLCONFIG(nasid)->size
402 #define GDA_ADDR(nasid) KLD_GDA(nasid)->pointer
403 #define GDA_SIZE(nasid) KLD_GDA(nasid)->size
405 #define SYMMON_STK_OFFSET(nasid, slice) \
406 (KLD_SYMMON_STK(nasid)->offset + \
407 KLD_SYMMON_STK(nasid)->stride * (slice))
408 #define SYMMON_STK_STRIDE(nasid) KLD_SYMMON_STK(nasid)->stride
410 #define SYMMON_STK_ADDR(nasid, slice) \
411 TO_NODE_CAC((nasid), SYMMON_STK_OFFSET(nasid, slice))
413 #define SYMMON_STK_SIZE(nasid) KLD_SYMMON_STK(nasid)->stride
415 #define SYMMON_STK_END(nasid) (SYMMON_STK_ADDR(nasid, 0) + KLD_SYMMON_STK(nasid)->size)
417 /* loading symmon 4k below UNIX. the arcs loader needs the topaddr for a
418 * relocatable program
420 #define UNIX_DEBUG_LOADADDR 0x300000
421 #define SYMMON_LOADADDR(nasid) \
422 TO_NODE(nasid, PHYS_TO_K0(UNIX_DEBUG_LOADADDR - 0x1000))
424 #define FREEMEM_OFFSET(nasid) KLD_FREEMEM(nasid)->offset
425 #define FREEMEM_ADDR(nasid) SYMMON_STK_END(nasid)
427 * XXX
428 * Fix this. FREEMEM_ADDR should be aware of if symmon is loaded.
429 * Also, it should take into account what prom thinks to be a safe
430 * address
431 PHYS_TO_K0(NODE_OFFSET(nasid) + FREEMEM_OFFSET(nasid))
433 #define FREEMEM_SIZE(nasid) KLD_FREEMEM(nasid)->size
435 #define PI_ERROR_OFFSET(nasid) KLD_PI_ERROR(nasid)->offset
436 #define PI_ERROR_ADDR(nasid) \
437 TO_NODE_UNCAC((nasid), PI_ERROR_OFFSET(nasid))
438 #define PI_ERROR_SIZE(nasid) KLD_PI_ERROR(nasid)->size
440 #define NODE_OFFSET_TO_K0(_nasid, _off) \
441 PHYS_TO_K0((NODE_OFFSET(_nasid) + (_off)) | CAC_BASE)
442 #define NODE_OFFSET_TO_K1(_nasid, _off) \
443 TO_UNCAC((NODE_OFFSET(_nasid) + (_off)) | UNCAC_BASE)
444 #define K0_TO_NODE_OFFSET(_k0addr) \
445 ((__psunsigned_t)(_k0addr) & NODE_ADDRSPACE_MASK)
447 #define KERN_VARS_ADDR(nasid) KLD_KERN_VARS(nasid)->pointer
448 #define KERN_VARS_SIZE(nasid) KLD_KERN_VARS(nasid)->size
450 #define KERN_XP_ADDR(nasid) KLD_KERN_XP(nasid)->pointer
451 #define KERN_XP_SIZE(nasid) KLD_KERN_XP(nasid)->size
453 #define GPDA_ADDR(nasid) TO_NODE_CAC(nasid, GPDA_OFFSET)
455 #endif /* !__ASSEMBLY__ */
458 #endif /* _ASM_SN_ADDRS_H */