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
6 * Copyright (C) 1992 - 1997, 1999, 2000 Silicon Graphics, Inc.
7 * Copyright (C) 1999, 2000 by Ralf Baechle
9 #ifndef _ASM_SN_ADDRS_H
10 #define _ASM_SN_ADDRS_H
14 #include <linux/types.h>
15 #endif /* !__ASSEMBLY__ */
17 #include <asm/addrspace.h>
18 #include <asm/sn/kldir.h>
20 #if defined(CONFIG_SGI_IP27)
21 #include <asm/sn/sn0/addrs.h>
22 #elif defined(CONFIG_SGI_IP35)
23 #include <asm/sn/sn1/addrs.h>
29 #if defined(CONFIG_SGI_IO) /* FIXME */
30 #define PS_UINT_CAST (__psunsigned_t)
31 #define UINT64_CAST (__uint64_t)
32 #else /* CONFIG_SGI_IO */
33 #define PS_UINT_CAST (unsigned long)
34 #define UINT64_CAST (unsigned long)
35 #endif /* CONFIG_SGI_IO */
37 #define HUBREG_CAST (volatile hubreg_t *)
39 #else /* __ASSEMBLY__ */
45 #endif /* __ASSEMBLY__ */
48 #define NASID_GET_META(_n) ((_n) >> NASID_LOCAL_BITS)
49 #ifdef CONFIG_SGI_IP27
50 #define NASID_GET_LOCAL(_n) ((_n) & 0xf)
52 #define NASID_MAKE(_m, _l) (((_m) << NASID_LOCAL_BITS) | (_l))
54 #define NODE_ADDRSPACE_MASK (NODE_ADDRSPACE_SIZE - 1)
55 #define TO_NODE_ADDRSPACE(_pa) (UINT64_CAST (_pa) & NODE_ADDRSPACE_MASK)
57 #define CHANGE_ADDR_NASID(_pa, _nasid) \
58 ((UINT64_CAST (_pa) & ~NASID_MASK) | \
59 (UINT64_CAST(_nasid) << NASID_SHFT))
63 * The following macros are used to index to the beginning of a specific
64 * node's address space.
67 #define NODE_OFFSET(_n) (UINT64_CAST (_n) << NODE_SIZE_BITS)
69 #define NODE_CAC_BASE(_n) (CAC_BASE + NODE_OFFSET(_n))
70 #define NODE_HSPEC_BASE(_n) (HSPEC_BASE + NODE_OFFSET(_n))
71 #define NODE_IO_BASE(_n) (IO_BASE + NODE_OFFSET(_n))
72 #define NODE_MSPEC_BASE(_n) (MSPEC_BASE + NODE_OFFSET(_n))
73 #define NODE_UNCAC_BASE(_n) (UNCAC_BASE + NODE_OFFSET(_n))
75 #define TO_NODE(_n, _x) (NODE_OFFSET(_n) | ((_x) ))
76 #define TO_NODE_CAC(_n, _x) (NODE_CAC_BASE(_n) | ((_x) & TO_PHYS_MASK))
77 #define TO_NODE_UNCAC(_n, _x) (NODE_UNCAC_BASE(_n) | ((_x) & TO_PHYS_MASK))
78 #define TO_NODE_MSPEC(_n, _x) (NODE_MSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK))
79 #define TO_NODE_HSPEC(_n, _x) (NODE_HSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK))
82 #define RAW_NODE_SWIN_BASE(nasid, widget) \
83 (NODE_IO_BASE(nasid) + (UINT64_CAST (widget) << SWIN_SIZE_BITS))
85 #define WIDGETID_GET(addr) ((unsigned char)((addr >> SWIN_SIZE_BITS) & 0xff))
88 * The following definitions pertain to the IO special address
89 * space. They define the location of the big and little windows
93 #define SWIN_SIZE_BITS 24
94 #define SWIN_SIZE (UINT64_CAST 1 << 24)
95 #define SWIN_SIZEMASK (SWIN_SIZE - 1)
96 #define SWIN_WIDGET_MASK 0xF
99 * Convert smallwindow address to xtalk address.
101 * 'addr' can be physical or virtual address, but will be converted
102 * to Xtalk address in the range 0 -> SWINZ_SIZEMASK
104 #define SWIN_WIDGETADDR(addr) ((addr) & SWIN_SIZEMASK)
105 #define SWIN_WIDGETNUM(addr) (((addr) >> SWIN_SIZE_BITS) & SWIN_WIDGET_MASK)
107 * Verify if addr belongs to small window address on node with "nasid"
110 * NOTE: "addr" is expected to be XKPHYS address, and NOT physical
115 #define NODE_SWIN_ADDR(nasid, addr) \
116 (((addr) >= NODE_SWIN_BASE(nasid, 0)) && \
117 ((addr) < (NODE_SWIN_BASE(nasid, HUB_NUM_WIDGET) + SWIN_SIZE)\
121 * The following define the major position-independent aliases used
123 * UALIAS -- 256MB in size, reads in the UALIAS result in
124 * uncached references to the memory of the reader's node.
125 * CPU_UALIAS -- 128kb in size, the bottom part of UALIAS is flipped
126 * depending on which CPU does the access to provide
127 * all CPUs with unique uncached memory at low addresses.
128 * LBOOT -- 256MB in size, reads in the LBOOT area result in
129 * uncached references to the local hub's boot prom and
130 * other directory-bus connected devices.
131 * IALIAS -- 8MB in size, reads in the IALIAS result in uncached
132 * references to the local hub's registers.
135 #define UALIAS_BASE HSPEC_BASE
136 #define UALIAS_SIZE 0x10000000 /* 256 Megabytes */
137 #define UALIAS_LIMIT (UALIAS_BASE + UALIAS_SIZE)
140 * The bottom of ualias space is flipped depending on whether you're
141 * processor 0 or 1 within a node.
143 #ifdef CONFIG_SGI_IP27
144 #define UALIAS_FLIP_BASE UALIAS_BASE
145 #define UALIAS_FLIP_SIZE 0x20000
146 #define UALIAS_FLIP_BIT 0x10000
147 #define UALIAS_FLIP_ADDR(_x) (cputoslice(smp_processor_id()) ? \
148 (_x) ^ UALIAS_FLIP_BIT : (_x))
150 #define LBOOT_BASE (HSPEC_BASE + 0x10000000)
151 #define LBOOT_SIZE 0x10000000
152 #define LBOOT_LIMIT (LBOOT_BASE + LBOOT_SIZE)
153 #define LBOOT_STRIDE 0 /* IP27 has only one CPU PROM */
157 #define HUB_REGISTER_WIDGET 1
158 #define IALIAS_BASE NODE_SWIN_BASE(0, HUB_REGISTER_WIDGET)
159 #define IALIAS_SIZE 0x800000 /* 8 Megabytes */
160 #define IS_IALIAS(_a) (((_a) >= IALIAS_BASE) && \
161 ((_a) < (IALIAS_BASE + IALIAS_SIZE)))
164 * Macro for referring to Hub's RBOOT space
167 #ifdef CONFIG_SGI_IP27
168 #define RBOOT_SIZE 0x10000000 /* 256 Megabytes */
169 #define NODE_RBOOT_BASE(_n) (NODE_HSPEC_BASE(_n) + 0x30000000)
170 #define NODE_RBOOT_LIMIT(_n) (NODE_RBOOT_BASE(_n) + RBOOT_SIZE)
175 * Macros for referring the Hub's back door space
177 * These macros correctly process addresses in any node's space.
178 * WARNING: They won't work in assembler.
180 * BDDIR_ENTRY_LO returns the address of the low double-word of the dir
181 * entry corresponding to a physical (Cac or Uncac) address.
182 * BDDIR_ENTRY_HI returns the address of the high double-word of the entry.
183 * BDPRT_ENTRY returns the address of the double-word protection entry
184 * corresponding to the page containing the physical address.
185 * BDPRT_ENTRY_S Stores the value into the protection entry.
186 * BDPRT_ENTRY_L Load the value from the protection entry.
187 * BDECC_ENTRY returns the address of the ECC byte corresponding to a
188 * double-word at a specified physical address.
189 * BDECC_ENTRY_H returns the address of the two ECC bytes corresponding to a
190 * quad-word at a specified physical address.
192 #define NODE_BDOOR_BASE(_n) (NODE_HSPEC_BASE(_n) + (NODE_ADDRSPACE_SIZE/2))
194 #define NODE_BDECC_BASE(_n) (NODE_BDOOR_BASE(_n))
195 #define NODE_BDDIR_BASE(_n) (NODE_BDOOR_BASE(_n) + (NODE_ADDRSPACE_SIZE/4))
196 #ifdef CONFIG_SGI_IP27
197 #define BDDIR_ENTRY_LO(_pa) ((HSPEC_BASE + \
198 NODE_ADDRSPACE_SIZE * 3 / 4 + \
200 UINT64_CAST (_pa) & NASID_MASK | \
201 UINT64_CAST (_pa) >> 2 & BDDIR_UPPER_MASK | \
202 UINT64_CAST (_pa) >> 3 & 0x1f << 4)
204 #define BDDIR_ENTRY_HI(_pa) ((HSPEC_BASE + \
205 NODE_ADDRSPACE_SIZE * 3 / 4 + \
207 UINT64_CAST (_pa) & NASID_MASK | \
208 UINT64_CAST (_pa) >> 2 & BDDIR_UPPER_MASK | \
209 UINT64_CAST (_pa) >> 3 & 0x1f << 4)
211 #define BDPRT_ENTRY(_pa, _rgn) ((HSPEC_BASE + \
212 NODE_ADDRSPACE_SIZE * 3 / 4) | \
213 UINT64_CAST (_pa) & NASID_MASK | \
214 UINT64_CAST (_pa) >> 2 & BDDIR_UPPER_MASK | \
216 #define BDPRT_ENTRY_ADDR(_pa,_rgn) (BDPRT_ENTRY((_pa),(_rgn)))
217 #define BDPRT_ENTRY_S(_pa,_rgn,_val) (*(__psunsigned_t *)BDPRT_ENTRY((_pa),(_rgn))=(_val))
218 #define BDPRT_ENTRY_L(_pa,_rgn) (*(__psunsigned_t *)BDPRT_ENTRY((_pa),(_rgn)))
220 #define BDECC_ENTRY(_pa) ((HSPEC_BASE + \
221 NODE_ADDRSPACE_SIZE / 2) | \
222 UINT64_CAST (_pa) & NASID_MASK | \
223 UINT64_CAST (_pa) >> 2 & BDECC_UPPER_MASK | \
224 UINT64_CAST (_pa) >> 3 & 3)
227 * Macro to convert a back door directory or protection address into the
228 * raw physical address of the associated cache line or protection page.
230 #define BDADDR_IS_DIR(_ba) ((UINT64_CAST (_ba) & 0x200) != 0)
231 #define BDADDR_IS_PRT(_ba) ((UINT64_CAST (_ba) & 0x200) == 0)
233 #define BDDIR_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \
234 (UINT64_CAST (_ba) & BDDIR_UPPER_MASK)<<2 | \
235 (UINT64_CAST (_ba) & 0x1f << 4) << 3)
237 #define BDPRT_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \
238 (UINT64_CAST (_ba) & BDDIR_UPPER_MASK)<<2)
240 #define BDECC_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \
241 (UINT64_CAST (_ba) & BDECC_UPPER_MASK)<<2 | \
242 (UINT64_CAST (_ba) & 3) << 3)
243 #endif /* CONFIG_SGI_IP27 */
247 * The following macros produce the correct base virtual address for
248 * the hub registers. The LOCAL_HUB_* macros produce the appropriate
249 * address for the local registers. The REMOTE_HUB_* macro produce
250 * the address for the specified hub's registers. The intent is
251 * that the appropriate PI, MD, NI, or II register would be substituted
257 /* DO NOT USE THESE DIRECTLY IN THE KERNEL. SEE BELOW. */
258 #define LOCAL_HUB(_x) (HUBREG_CAST (IALIAS_BASE + (_x)))
259 #define REMOTE_HUB(_n, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \
261 #endif /* _STANDALONE */
265 * When certain Hub chip workaround are defined, it's not sufficient
266 * to dereference the *_HUB_ADDR() macros. You should instead use
267 * HUB_L() and HUB_S() if you must deal with pointers to hub registers.
268 * Otherwise, the recommended approach is to use *_HUB_L() and *_HUB_S().
269 * They're always safe.
271 #define LOCAL_HUB_ADDR(_x) (HUBREG_CAST (IALIAS_BASE + (_x)))
272 #define REMOTE_HUB_ADDR(_n, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \
274 #ifdef CONFIG_SGI_IP27
275 #define REMOTE_HUB_PI_ADDR(_n, _sn, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \
277 #endif /* CONFIG_SGI_IP27 */
281 #define HUB_L(_a) *(_a)
282 #define HUB_S(_a, _d) *(_a) = (_d)
284 #define LOCAL_HUB_L(_r) HUB_L(LOCAL_HUB_ADDR(_r))
285 #define LOCAL_HUB_S(_r, _d) HUB_S(LOCAL_HUB_ADDR(_r), (_d))
286 #define REMOTE_HUB_L(_n, _r) HUB_L(REMOTE_HUB_ADDR((_n), (_r)))
287 #define REMOTE_HUB_S(_n, _r, _d) HUB_S(REMOTE_HUB_ADDR((_n), (_r)), (_d))
288 #define REMOTE_HUB_PI_L(_n, _sn, _r) HUB_L(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)))
289 #define REMOTE_HUB_PI_S(_n, _sn, _r, _d) HUB_S(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)), (_d))
291 #endif /* !__ASSEMBLY__ */
294 * The following macros are used to get to a hub/bridge register, given
295 * the base of the register space.
297 #define HUB_REG_PTR(_base, _off) \
298 (HUBREG_CAST ((__psunsigned_t)(_base) + (__psunsigned_t)(_off)))
300 #define HUB_REG_PTR_L(_base, _off) \
301 HUB_L(HUB_REG_PTR((_base), (_off)))
303 #define HUB_REG_PTR_S(_base, _off, _data) \
304 HUB_S(HUB_REG_PTR((_base), (_off)), (_data))
307 * Software structure locations -- permanently fixed
308 * See diagram in kldir.h
311 #define PHYS_RAMBASE 0x0
312 #define K0_RAMBASE PHYS_TO_K0(PHYS_RAMBASE)
314 #define EX_HANDLER_OFFSET(slice) ((slice) << 16)
315 #define EX_HANDLER_ADDR(nasid, slice) \
316 PHYS_TO_K0(NODE_OFFSET(nasid) | EX_HANDLER_OFFSET(slice))
317 #define EX_HANDLER_SIZE 0x0400
319 #define EX_FRAME_OFFSET(slice) ((slice) << 16 | 0x400)
320 #define EX_FRAME_ADDR(nasid, slice) \
321 PHYS_TO_K0(NODE_OFFSET(nasid) | EX_FRAME_OFFSET(slice))
322 #define EX_FRAME_SIZE 0x0c00
324 #define ARCS_SPB_OFFSET 0x1000
325 #define ARCS_SPB_ADDR(nasid) \
326 PHYS_TO_K0(NODE_OFFSET(nasid) | ARCS_SPB_OFFSET)
327 #define ARCS_SPB_SIZE 0x0400
331 #define ARCS_TVECTOR_OFFSET 0x2800
332 #define ARCS_PVECTOR_OFFSET 0x2c00
335 * These addresses are used by the master CPU to install the transfer
336 * and private vectors. All others use the SPB to find them.
338 #define TVADDR (NODE_CAC_BASE(get_nasid()) + ARCS_TVECTOR_OFFSET)
339 #define PVADDR (NODE_CAC_BASE(get_nasid()) + ARCS_PVECTOR_OFFSET)
341 #endif /* _STANDALONE */
343 #define KLDIR_OFFSET 0x2000
344 #define KLDIR_ADDR(nasid) \
345 TO_NODE_UNCAC((nasid), KLDIR_OFFSET)
346 #define KLDIR_SIZE 0x0400
350 * Software structure locations -- indirected through KLDIR
351 * See diagram in kldir.h
353 * Important: All low memory structures must only be accessed
354 * uncached, except for the symmon stacks.
357 #define KLI_LAUNCH 0 /* Dir. entries */
358 #define KLI_KLCONFIG 1
361 #define KLI_FREEMEM 4
362 #define KLI_SYMMON_STK 5
363 #define KLI_PI_ERROR 6
364 #define KLI_KERN_VARS 7
365 #define KLI_KERN_XP 8
366 #define KLI_KERN_PARTID 9
370 #define KLD_BASE(nasid) ((kldir_ent_t *) KLDIR_ADDR(nasid))
371 #define KLD_LAUNCH(nasid) (KLD_BASE(nasid) + KLI_LAUNCH)
372 #define KLD_NMI(nasid) (KLD_BASE(nasid) + KLI_NMI)
373 #define KLD_KLCONFIG(nasid) (KLD_BASE(nasid) + KLI_KLCONFIG)
374 #define KLD_PI_ERROR(nasid) (KLD_BASE(nasid) + KLI_PI_ERROR)
375 #define KLD_GDA(nasid) (KLD_BASE(nasid) + KLI_GDA)
376 #define KLD_SYMMON_STK(nasid) (KLD_BASE(nasid) + KLI_SYMMON_STK)
377 #define KLD_FREEMEM(nasid) (KLD_BASE(nasid) + KLI_FREEMEM)
378 #define KLD_KERN_VARS(nasid) (KLD_BASE(nasid) + KLI_KERN_VARS)
379 #define KLD_KERN_XP(nasid) (KLD_BASE(nasid) + KLI_KERN_XP)
380 #define KLD_KERN_PARTID(nasid) (KLD_BASE(nasid) + KLI_KERN_PARTID)
382 #define LAUNCH_OFFSET(nasid, slice) \
383 (KLD_LAUNCH(nasid)->offset + \
384 KLD_LAUNCH(nasid)->stride * (slice))
385 #define LAUNCH_ADDR(nasid, slice) \
386 TO_NODE_UNCAC((nasid), LAUNCH_OFFSET(nasid, slice))
387 #define LAUNCH_SIZE(nasid) KLD_LAUNCH(nasid)->size
389 #define NMI_OFFSET(nasid, slice) \
390 (KLD_NMI(nasid)->offset + \
391 KLD_NMI(nasid)->stride * (slice))
392 #define NMI_ADDR(nasid, slice) \
393 TO_NODE_UNCAC((nasid), NMI_OFFSET(nasid, slice))
394 #define NMI_SIZE(nasid) KLD_NMI(nasid)->size
396 #define KLCONFIG_OFFSET(nasid) KLD_KLCONFIG(nasid)->offset
397 #define KLCONFIG_ADDR(nasid) \
398 TO_NODE_UNCAC((nasid), KLCONFIG_OFFSET(nasid))
399 #define KLCONFIG_SIZE(nasid) KLD_KLCONFIG(nasid)->size
401 #define GDA_ADDR(nasid) KLD_GDA(nasid)->pointer
402 #define GDA_SIZE(nasid) KLD_GDA(nasid)->size
404 #define SYMMON_STK_OFFSET(nasid, slice) \
405 (KLD_SYMMON_STK(nasid)->offset + \
406 KLD_SYMMON_STK(nasid)->stride * (slice))
407 #define SYMMON_STK_STRIDE(nasid) KLD_SYMMON_STK(nasid)->stride
409 #define SYMMON_STK_ADDR(nasid, slice) \
410 TO_NODE_CAC((nasid), SYMMON_STK_OFFSET(nasid, slice))
412 #define SYMMON_STK_SIZE(nasid) KLD_SYMMON_STK(nasid)->stride
414 #define SYMMON_STK_END(nasid) (SYMMON_STK_ADDR(nasid, 0) + KLD_SYMMON_STK(nasid)->size)
416 /* loading symmon 4k below UNIX. the arcs loader needs the topaddr for a
417 * relocatable program
419 #define UNIX_DEBUG_LOADADDR 0x300000
420 #define SYMMON_LOADADDR(nasid) \
421 TO_NODE(nasid, PHYS_TO_K0(UNIX_DEBUG_LOADADDR - 0x1000))
423 #define FREEMEM_OFFSET(nasid) KLD_FREEMEM(nasid)->offset
424 #define FREEMEM_ADDR(nasid) SYMMON_STK_END(nasid)
427 * Fix this. FREEMEM_ADDR should be aware of if symmon is loaded.
428 * Also, it should take into account what prom thinks to be a safe
430 PHYS_TO_K0(NODE_OFFSET(nasid) + FREEMEM_OFFSET(nasid))
432 #define FREEMEM_SIZE(nasid) KLD_FREEMEM(nasid)->size
434 #define PI_ERROR_OFFSET(nasid) KLD_PI_ERROR(nasid)->offset
435 #define PI_ERROR_ADDR(nasid) \
436 TO_NODE_UNCAC((nasid), PI_ERROR_OFFSET(nasid))
437 #define PI_ERROR_SIZE(nasid) KLD_PI_ERROR(nasid)->size
439 #define NODE_OFFSET_TO_K0(_nasid, _off) \
440 PHYS_TO_K0((NODE_OFFSET(_nasid) + (_off)) | CAC_BASE)
441 #define NODE_OFFSET_TO_K1(_nasid, _off) \
442 TO_UNCAC((NODE_OFFSET(_nasid) + (_off)) | UNCAC_BASE)
443 #define K0_TO_NODE_OFFSET(_k0addr) \
444 ((__psunsigned_t)(_k0addr) & NODE_ADDRSPACE_MASK)
446 #define KERN_VARS_ADDR(nasid) KLD_KERN_VARS(nasid)->pointer
447 #define KERN_VARS_SIZE(nasid) KLD_KERN_VARS(nasid)->size
449 #define KERN_XP_ADDR(nasid) KLD_KERN_XP(nasid)->pointer
450 #define KERN_XP_SIZE(nasid) KLD_KERN_XP(nasid)->size
452 #define GPDA_ADDR(nasid) TO_NODE_CAC(nasid, GPDA_OFFSET)
454 #endif /* !__ASSEMBLY__ */
457 #endif /* _ASM_SN_ADDRS_H */