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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 * 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
11
12
13#ifndef __ASSEMBLY__
14#include <linux/smp.h>
15#include <linux/types.h>
16#endif /* !__ASSEMBLY__ */
17
18#include <asm/addrspace.h>
19#include <asm/sn/kldir.h>
20
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
26
27
28#ifndef __ASSEMBLY__
29
30#define UINT64_CAST (unsigned long)
31
32#else /* __ASSEMBLY__ */
33
34#define UINT64_CAST
35
36#endif /* __ASSEMBLY__ */
37
38
39#define NASID_GET_META(_n) ((_n) >> NASID_LOCAL_BITS)
40#ifdef CONFIG_SGI_IP27
41#define NASID_GET_LOCAL(_n) ((_n) & 0xf)
42#endif
43#define NASID_MAKE(_m, _l) (((_m) << NASID_LOCAL_BITS) | (_l))
44
45#define NODE_ADDRSPACE_MASK (NODE_ADDRSPACE_SIZE - 1)
46#define TO_NODE_ADDRSPACE(_pa) (UINT64_CAST (_pa) & NODE_ADDRSPACE_MASK)
47
48#define CHANGE_ADDR_NASID(_pa, _nasid) \
49 ((UINT64_CAST(_pa) & ~NASID_MASK) | \
50 (UINT64_CAST(_nasid) << NASID_SHFT))
51
52
53/*
54 * The following macros are used to index to the beginning of a specific
55 * node's address space.
56 */
57
58#define NODE_OFFSET(_n) (UINT64_CAST (_n) << NODE_SIZE_BITS)
59
60#define NODE_CAC_BASE(_n) (CAC_BASE + NODE_OFFSET(_n))
61#define NODE_HSPEC_BASE(_n) (HSPEC_BASE + NODE_OFFSET(_n))
62#define NODE_IO_BASE(_n) (IO_BASE + NODE_OFFSET(_n))
63#define NODE_MSPEC_BASE(_n) (MSPEC_BASE + NODE_OFFSET(_n))
64#define NODE_UNCAC_BASE(_n) (UNCAC_BASE + NODE_OFFSET(_n))
65
66#define TO_NODE(_n, _x) (NODE_OFFSET(_n) | ((_x) ))
67#define TO_NODE_CAC(_n, _x) (NODE_CAC_BASE(_n) | ((_x) & TO_PHYS_MASK))
68#define TO_NODE_UNCAC(_n, _x) (NODE_UNCAC_BASE(_n) | ((_x) & TO_PHYS_MASK))
69#define TO_NODE_MSPEC(_n, _x) (NODE_MSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK))
70#define TO_NODE_HSPEC(_n, _x) (NODE_HSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK))
71
72
73#define RAW_NODE_SWIN_BASE(nasid, widget) \
74 (NODE_IO_BASE(nasid) + (UINT64_CAST(widget) << SWIN_SIZE_BITS))
75
76#define WIDGETID_GET(addr) ((unsigned char)((addr >> SWIN_SIZE_BITS) & 0xff))
77
78/*
79 * The following definitions pertain to the IO special address
80 * space. They define the location of the big and little windows
81 * of any given node.
82 */
83
84#define SWIN_SIZE_BITS 24
85#define SWIN_SIZE (UINT64_CAST 1 << 24)
86#define SWIN_SIZEMASK (SWIN_SIZE - 1)
87#define SWIN_WIDGET_MASK 0xF
88
89/*
90 * Convert smallwindow address to xtalk address.
91 *
92 * 'addr' can be physical or virtual address, but will be converted
93 * to Xtalk address in the range 0 -> SWINZ_SIZEMASK
94 */
95#define SWIN_WIDGETADDR(addr) ((addr) & SWIN_SIZEMASK)
96#define SWIN_WIDGETNUM(addr) (((addr) >> SWIN_SIZE_BITS) & SWIN_WIDGET_MASK)
97/*
98 * Verify if addr belongs to small window address on node with "nasid"
99 *
100 *
101 * NOTE: "addr" is expected to be XKPHYS address, and NOT physical
102 * address
103 *
104 *
105 */
106#define NODE_SWIN_ADDR(nasid, addr) \
107 (((addr) >= NODE_SWIN_BASE(nasid, 0)) && \
108 ((addr) < (NODE_SWIN_BASE(nasid, HUB_NUM_WIDGET) + SWIN_SIZE)\
109 ))
110
111/*
112 * The following define the major position-independent aliases used
113 * in SN.
114 * UALIAS -- 256MB in size, reads in the UALIAS result in
115 * uncached references to the memory of the reader's node.
116 * CPU_UALIAS -- 128kb in size, the bottom part of UALIAS is flipped
117 * depending on which CPU does the access to provide
118 * all CPUs with unique uncached memory at low addresses.
119 * LBOOT -- 256MB in size, reads in the LBOOT area result in
120 * uncached references to the local hub's boot prom and
121 * other directory-bus connected devices.
122 * IALIAS -- 8MB in size, reads in the IALIAS result in uncached
123 * references to the local hub's registers.
124 */
125
126#define UALIAS_BASE HSPEC_BASE
127#define UALIAS_SIZE 0x10000000 /* 256 Megabytes */
128#define UALIAS_LIMIT (UALIAS_BASE + UALIAS_SIZE)
129
130/*
131 * The bottom of ualias space is flipped depending on whether you're
132 * processor 0 or 1 within a node.
133 */
134#ifdef CONFIG_SGI_IP27
135#define UALIAS_FLIP_BASE UALIAS_BASE
136#define UALIAS_FLIP_SIZE 0x20000
137#define UALIAS_FLIP_BIT 0x10000
138#define UALIAS_FLIP_ADDR(_x) (cputoslice(smp_processor_id()) ? \
139 (_x) ^ UALIAS_FLIP_BIT : (_x))
140
141#define LBOOT_BASE (HSPEC_BASE + 0x10000000)
142#define LBOOT_SIZE 0x10000000
143#define LBOOT_LIMIT (LBOOT_BASE + LBOOT_SIZE)
144#define LBOOT_STRIDE 0 /* IP27 has only one CPU PROM */
145
146#endif
147
148#define HUB_REGISTER_WIDGET 1
149#define IALIAS_BASE NODE_SWIN_BASE(0, HUB_REGISTER_WIDGET)
150#define IALIAS_SIZE 0x800000 /* 8 Megabytes */
151#define IS_IALIAS(_a) (((_a) >= IALIAS_BASE) && \
152 ((_a) < (IALIAS_BASE + IALIAS_SIZE)))
153
154/*
155 * Macro for referring to Hub's RBOOT space
156 */
157
158#ifdef CONFIG_SGI_IP27
159#define RBOOT_SIZE 0x10000000 /* 256 Megabytes */
160#define NODE_RBOOT_BASE(_n) (NODE_HSPEC_BASE(_n) + 0x30000000)
161#define NODE_RBOOT_LIMIT(_n) (NODE_RBOOT_BASE(_n) + RBOOT_SIZE)
162
163#endif
164
165/*
166 * Macros for referring the Hub's back door space
167 *
168 * These macros correctly process addresses in any node's space.
169 * WARNING: They won't work in assembler.
170 *
171 * BDDIR_ENTRY_LO returns the address of the low double-word of the dir
172 * entry corresponding to a physical (Cac or Uncac) address.
173 * BDDIR_ENTRY_HI returns the address of the high double-word of the entry.
174 * BDPRT_ENTRY returns the address of the double-word protection entry
175 * corresponding to the page containing the physical address.
176 * BDPRT_ENTRY_S Stores the value into the protection entry.
177 * BDPRT_ENTRY_L Load the value from the protection entry.
178 * BDECC_ENTRY returns the address of the ECC byte corresponding to a
179 * double-word at a specified physical address.
180 * BDECC_ENTRY_H returns the address of the two ECC bytes corresponding to a
181 * quad-word at a specified physical address.
182 */
183#define NODE_BDOOR_BASE(_n) (NODE_HSPEC_BASE(_n) + (NODE_ADDRSPACE_SIZE/2))
184
185#define NODE_BDECC_BASE(_n) (NODE_BDOOR_BASE(_n))
186#define NODE_BDDIR_BASE(_n) (NODE_BDOOR_BASE(_n) + (NODE_ADDRSPACE_SIZE/4))
187#ifdef CONFIG_SGI_IP27
188#define BDDIR_ENTRY_LO(_pa) ((HSPEC_BASE + \
189 NODE_ADDRSPACE_SIZE * 3 / 4 + \
190 0x200) | \
191 UINT64_CAST(_pa) & NASID_MASK | \
192 UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK | \
193 UINT64_CAST(_pa) >> 3 & 0x1f << 4)
194
195#define BDDIR_ENTRY_HI(_pa) ((HSPEC_BASE + \
196 NODE_ADDRSPACE_SIZE * 3 / 4 + \
197 0x208) | \
198 UINT64_CAST(_pa) & NASID_MASK | \
199 UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK | \
200 UINT64_CAST(_pa) >> 3 & 0x1f << 4)
201
202#define BDPRT_ENTRY(_pa, _rgn) ((HSPEC_BASE + \
203 NODE_ADDRSPACE_SIZE * 3 / 4) | \
204 UINT64_CAST(_pa) & NASID_MASK | \
205 UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK | \
206 (_rgn) << 3)
207#define BDPRT_ENTRY_ADDR(_pa, _rgn) (BDPRT_ENTRY((_pa), (_rgn)))
208#define BDPRT_ENTRY_S(_pa, _rgn, _val) (*(__psunsigned_t *)BDPRT_ENTRY((_pa), (_rgn))=(_val))
209#define BDPRT_ENTRY_L(_pa, _rgn) (*(__psunsigned_t *)BDPRT_ENTRY((_pa), (_rgn)))
210
211#define BDECC_ENTRY(_pa) ((HSPEC_BASE + \
212 NODE_ADDRSPACE_SIZE / 2) | \
213 UINT64_CAST(_pa) & NASID_MASK | \
214 UINT64_CAST(_pa) >> 2 & BDECC_UPPER_MASK | \
215 UINT64_CAST(_pa) >> 3 & 3)
216
217/*
218 * Macro to convert a back door directory or protection address into the
219 * raw physical address of the associated cache line or protection page.
220 */
221#define BDADDR_IS_DIR(_ba) ((UINT64_CAST (_ba) & 0x200) != 0)
222#define BDADDR_IS_PRT(_ba) ((UINT64_CAST (_ba) & 0x200) == 0)
223
224#define BDDIR_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \
225 (UINT64_CAST(_ba) & BDDIR_UPPER_MASK)<<2 | \
226 (UINT64_CAST(_ba) & 0x1f << 4) << 3)
227
228#define BDPRT_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \
229 (UINT64_CAST(_ba) & BDDIR_UPPER_MASK)<<2)
230
231#define BDECC_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \
232 (UINT64_CAST(_ba) & BDECC_UPPER_MASK)<<2 | \
233 (UINT64_CAST(_ba) & 3) << 3)
234#endif /* CONFIG_SGI_IP27 */
235
236
237/*
238 * The following macros produce the correct base virtual address for
239 * the hub registers. The LOCAL_HUB_* macros produce the appropriate
240 * address for the local registers. The REMOTE_HUB_* macro produce
241 * the address for the specified hub's registers. The intent is
242 * that the appropriate PI, MD, NI, or II register would be substituted
243 * for _x.
244 */
245
246/*
247 * WARNING:
248 * When certain Hub chip workaround are defined, it's not sufficient
249 * to dereference the *_HUB_ADDR() macros. You should instead use
250 * HUB_L() and HUB_S() if you must deal with pointers to hub registers.
251 * Otherwise, the recommended approach is to use *_HUB_L() and *_HUB_S().
252 * They're always safe.
253 */
254#define LOCAL_HUB_ADDR(_x) (IALIAS_BASE + (_x))
255#define REMOTE_HUB_ADDR(_n, _x) ((NODE_SWIN_BASE(_n, 1) + 0x800000 + (_x)))
256
257#ifndef __ASSEMBLY__
258
259#define LOCAL_HUB_PTR(_x) ((u64 *)LOCAL_HUB_ADDR((_x)))
260#define REMOTE_HUB_PTR(_n, _x) ((u64 *)REMOTE_HUB_ADDR((_n), (_x)))
261
262#define LOCAL_HUB_L(_r) __raw_readq(LOCAL_HUB_PTR(_r))
263#define LOCAL_HUB_S(_r, _d) __raw_writeq((_d), LOCAL_HUB_PTR(_r))
264#define REMOTE_HUB_L(_n, _r) __raw_readq(REMOTE_HUB_PTR((_n), (_r)))
265#define REMOTE_HUB_S(_n, _r, _d) __raw_writeq((_d), \
266 REMOTE_HUB_PTR((_n), (_r)))
267
268#endif /* !__ASSEMBLY__ */
269
270/*
271 * Software structure locations -- permanently fixed
272 * See diagram in kldir.h
273 */
274
275#define PHYS_RAMBASE 0x0
276#define K0_RAMBASE PHYS_TO_K0(PHYS_RAMBASE)
277
278#define EX_HANDLER_OFFSET(slice) ((slice) << 16)
279#define EX_HANDLER_ADDR(nasid, slice) \
280 PHYS_TO_K0(NODE_OFFSET(nasid) | EX_HANDLER_OFFSET(slice))
281#define EX_HANDLER_SIZE 0x0400
282
283#define EX_FRAME_OFFSET(slice) ((slice) << 16 | 0x400)
284#define EX_FRAME_ADDR(nasid, slice) \
285 PHYS_TO_K0(NODE_OFFSET(nasid) | EX_FRAME_OFFSET(slice))
286#define EX_FRAME_SIZE 0x0c00
287
288#define ARCS_SPB_OFFSET 0x1000
289#define ARCS_SPB_ADDR(nasid) \
290 PHYS_TO_K0(NODE_OFFSET(nasid) | ARCS_SPB_OFFSET)
291#define ARCS_SPB_SIZE 0x0400
292
293#define KLDIR_OFFSET 0x2000
294#define KLDIR_ADDR(nasid) \
295 TO_NODE_UNCAC((nasid), KLDIR_OFFSET)
296#define KLDIR_SIZE 0x0400
297
298
299/*
300 * Software structure locations -- indirected through KLDIR
301 * See diagram in kldir.h
302 *
303 * Important: All low memory structures must only be accessed
304 * uncached, except for the symmon stacks.
305 */
306
307#define KLI_LAUNCH 0 /* Dir. entries */
308#define KLI_KLCONFIG 1
309#define KLI_NMI 2
310#define KLI_GDA 3
311#define KLI_FREEMEM 4
312#define KLI_SYMMON_STK 5
313#define KLI_PI_ERROR 6
314#define KLI_KERN_VARS 7
315#define KLI_KERN_XP 8
316#define KLI_KERN_PARTID 9
317
318#ifndef __ASSEMBLY__
319
320#define KLD_BASE(nasid) ((kldir_ent_t *) KLDIR_ADDR(nasid))
321#define KLD_LAUNCH(nasid) (KLD_BASE(nasid) + KLI_LAUNCH)
322#define KLD_NMI(nasid) (KLD_BASE(nasid) + KLI_NMI)
323#define KLD_KLCONFIG(nasid) (KLD_BASE(nasid) + KLI_KLCONFIG)
324#define KLD_PI_ERROR(nasid) (KLD_BASE(nasid) + KLI_PI_ERROR)
325#define KLD_GDA(nasid) (KLD_BASE(nasid) + KLI_GDA)
326#define KLD_SYMMON_STK(nasid) (KLD_BASE(nasid) + KLI_SYMMON_STK)
327#define KLD_FREEMEM(nasid) (KLD_BASE(nasid) + KLI_FREEMEM)
328#define KLD_KERN_VARS(nasid) (KLD_BASE(nasid) + KLI_KERN_VARS)
329#define KLD_KERN_XP(nasid) (KLD_BASE(nasid) + KLI_KERN_XP)
330#define KLD_KERN_PARTID(nasid) (KLD_BASE(nasid) + KLI_KERN_PARTID)
331
332#define LAUNCH_OFFSET(nasid, slice) \
333 (KLD_LAUNCH(nasid)->offset + \
334 KLD_LAUNCH(nasid)->stride * (slice))
335#define LAUNCH_ADDR(nasid, slice) \
336 TO_NODE_UNCAC((nasid), LAUNCH_OFFSET(nasid, slice))
337#define LAUNCH_SIZE(nasid) KLD_LAUNCH(nasid)->size
338
339#define SN_NMI_OFFSET(nasid, slice) \
340 (KLD_NMI(nasid)->offset + \
341 KLD_NMI(nasid)->stride * (slice))
342#define NMI_ADDR(nasid, slice) \
343 TO_NODE_UNCAC((nasid), SN_NMI_OFFSET(nasid, slice))
344#define NMI_SIZE(nasid) KLD_NMI(nasid)->size
345
346#define KLCONFIG_OFFSET(nasid) KLD_KLCONFIG(nasid)->offset
347#define KLCONFIG_ADDR(nasid) \
348 TO_NODE_UNCAC((nasid), KLCONFIG_OFFSET(nasid))
349#define KLCONFIG_SIZE(nasid) KLD_KLCONFIG(nasid)->size
350
351#define GDA_ADDR(nasid) KLD_GDA(nasid)->pointer
352#define GDA_SIZE(nasid) KLD_GDA(nasid)->size
353
354#define SYMMON_STK_OFFSET(nasid, slice) \
355 (KLD_SYMMON_STK(nasid)->offset + \
356 KLD_SYMMON_STK(nasid)->stride * (slice))
357#define SYMMON_STK_STRIDE(nasid) KLD_SYMMON_STK(nasid)->stride
358
359#define SYMMON_STK_ADDR(nasid, slice) \
360 TO_NODE_CAC((nasid), SYMMON_STK_OFFSET(nasid, slice))
361
362#define SYMMON_STK_SIZE(nasid) KLD_SYMMON_STK(nasid)->stride
363
364#define SYMMON_STK_END(nasid) (SYMMON_STK_ADDR(nasid, 0) + KLD_SYMMON_STK(nasid)->size)
365
366#define NODE_OFFSET_TO_K0(_nasid, _off) \
367 PHYS_TO_K0((NODE_OFFSET(_nasid) + (_off)) | CAC_BASE)
368#define NODE_OFFSET_TO_K1(_nasid, _off) \
369 TO_UNCAC((NODE_OFFSET(_nasid) + (_off)) | UNCAC_BASE)
370
371#define KERN_VARS_ADDR(nasid) KLD_KERN_VARS(nasid)->pointer
372#define KERN_VARS_SIZE(nasid) KLD_KERN_VARS(nasid)->size
373
374#endif /* !__ASSEMBLY__ */
375
376
377#endif /* _ASM_SN_ADDRS_H */
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 * 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
11
12
13#ifndef __ASSEMBLY__
14#include <linux/smp.h>
15#include <linux/types.h>
16#endif /* !__ASSEMBLY__ */
17
18#include <asm/addrspace.h>
19#include <asm/sn/kldir.h>
20
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
26
27
28#ifndef __ASSEMBLY__
29
30#define UINT64_CAST (unsigned long)
31
32#else /* __ASSEMBLY__ */
33
34#define UINT64_CAST
35
36#endif /* __ASSEMBLY__ */
37
38
39#define NASID_GET_META(_n) ((_n) >> NASID_LOCAL_BITS)
40#ifdef CONFIG_SGI_IP27
41#define NASID_GET_LOCAL(_n) ((_n) & 0xf)
42#endif
43#define NASID_MAKE(_m, _l) (((_m) << NASID_LOCAL_BITS) | (_l))
44
45#define NODE_ADDRSPACE_MASK (NODE_ADDRSPACE_SIZE - 1)
46#define TO_NODE_ADDRSPACE(_pa) (UINT64_CAST (_pa) & NODE_ADDRSPACE_MASK)
47
48#define CHANGE_ADDR_NASID(_pa, _nasid) \
49 ((UINT64_CAST(_pa) & ~NASID_MASK) | \
50 (UINT64_CAST(_nasid) << NASID_SHFT))
51
52
53/*
54 * The following macros are used to index to the beginning of a specific
55 * node's address space.
56 */
57
58#define NODE_OFFSET(_n) (UINT64_CAST (_n) << NODE_SIZE_BITS)
59
60#define NODE_CAC_BASE(_n) (CAC_BASE + NODE_OFFSET(_n))
61#define NODE_HSPEC_BASE(_n) (HSPEC_BASE + NODE_OFFSET(_n))
62#define NODE_IO_BASE(_n) (IO_BASE + NODE_OFFSET(_n))
63#define NODE_MSPEC_BASE(_n) (MSPEC_BASE + NODE_OFFSET(_n))
64#define NODE_UNCAC_BASE(_n) (UNCAC_BASE + NODE_OFFSET(_n))
65
66#define TO_NODE(_n, _x) (NODE_OFFSET(_n) | ((_x) ))
67#define TO_NODE_CAC(_n, _x) (NODE_CAC_BASE(_n) | ((_x) & TO_PHYS_MASK))
68#define TO_NODE_UNCAC(_n, _x) (NODE_UNCAC_BASE(_n) | ((_x) & TO_PHYS_MASK))
69#define TO_NODE_MSPEC(_n, _x) (NODE_MSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK))
70#define TO_NODE_HSPEC(_n, _x) (NODE_HSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK))
71
72
73#define RAW_NODE_SWIN_BASE(nasid, widget) \
74 (NODE_IO_BASE(nasid) + (UINT64_CAST(widget) << SWIN_SIZE_BITS))
75
76#define WIDGETID_GET(addr) ((unsigned char)((addr >> SWIN_SIZE_BITS) & 0xff))
77
78/*
79 * The following definitions pertain to the IO special address
80 * space. They define the location of the big and little windows
81 * of any given node.
82 */
83
84#define SWIN_SIZE_BITS 24
85#define SWIN_SIZE (UINT64_CAST 1 << 24)
86#define SWIN_SIZEMASK (SWIN_SIZE - 1)
87#define SWIN_WIDGET_MASK 0xF
88
89/*
90 * Convert smallwindow address to xtalk address.
91 *
92 * 'addr' can be physical or virtual address, but will be converted
93 * to Xtalk address in the range 0 -> SWINZ_SIZEMASK
94 */
95#define SWIN_WIDGETADDR(addr) ((addr) & SWIN_SIZEMASK)
96#define SWIN_WIDGETNUM(addr) (((addr) >> SWIN_SIZE_BITS) & SWIN_WIDGET_MASK)
97/*
98 * Verify if addr belongs to small window address on node with "nasid"
99 *
100 *
101 * NOTE: "addr" is expected to be XKPHYS address, and NOT physical
102 * address
103 *
104 *
105 */
106#define NODE_SWIN_ADDR(nasid, addr) \
107 (((addr) >= NODE_SWIN_BASE(nasid, 0)) && \
108 ((addr) < (NODE_SWIN_BASE(nasid, HUB_NUM_WIDGET) + SWIN_SIZE)\
109 ))
110
111/*
112 * The following define the major position-independent aliases used
113 * in SN.
114 * UALIAS -- 256MB in size, reads in the UALIAS result in
115 * uncached references to the memory of the reader's node.
116 * CPU_UALIAS -- 128kb in size, the bottom part of UALIAS is flipped
117 * depending on which CPU does the access to provide
118 * all CPUs with unique uncached memory at low addresses.
119 * LBOOT -- 256MB in size, reads in the LBOOT area result in
120 * uncached references to the local hub's boot prom and
121 * other directory-bus connected devices.
122 * IALIAS -- 8MB in size, reads in the IALIAS result in uncached
123 * references to the local hub's registers.
124 */
125
126#define UALIAS_BASE HSPEC_BASE
127#define UALIAS_SIZE 0x10000000 /* 256 Megabytes */
128#define UALIAS_LIMIT (UALIAS_BASE + UALIAS_SIZE)
129
130/*
131 * The bottom of ualias space is flipped depending on whether you're
132 * processor 0 or 1 within a node.
133 */
134#ifdef CONFIG_SGI_IP27
135#define UALIAS_FLIP_BASE UALIAS_BASE
136#define UALIAS_FLIP_SIZE 0x20000
137#define UALIAS_FLIP_BIT 0x10000
138#define UALIAS_FLIP_ADDR(_x) (cputoslice(smp_processor_id()) ? \
139 (_x) ^ UALIAS_FLIP_BIT : (_x))
140
141#define LBOOT_BASE (HSPEC_BASE + 0x10000000)
142#define LBOOT_SIZE 0x10000000
143#define LBOOT_LIMIT (LBOOT_BASE + LBOOT_SIZE)
144#define LBOOT_STRIDE 0 /* IP27 has only one CPU PROM */
145
146#endif
147
148#define HUB_REGISTER_WIDGET 1
149#define IALIAS_BASE NODE_SWIN_BASE(0, HUB_REGISTER_WIDGET)
150#define IALIAS_SIZE 0x800000 /* 8 Megabytes */
151#define IS_IALIAS(_a) (((_a) >= IALIAS_BASE) && \
152 ((_a) < (IALIAS_BASE + IALIAS_SIZE)))
153
154/*
155 * Macro for referring to Hub's RBOOT space
156 */
157
158#ifdef CONFIG_SGI_IP27
159#define RBOOT_SIZE 0x10000000 /* 256 Megabytes */
160#define NODE_RBOOT_BASE(_n) (NODE_HSPEC_BASE(_n) + 0x30000000)
161#define NODE_RBOOT_LIMIT(_n) (NODE_RBOOT_BASE(_n) + RBOOT_SIZE)
162
163#endif
164
165/*
166 * Macros for referring the Hub's back door space
167 *
168 * These macros correctly process addresses in any node's space.
169 * WARNING: They won't work in assembler.
170 *
171 * BDDIR_ENTRY_LO returns the address of the low double-word of the dir
172 * entry corresponding to a physical (Cac or Uncac) address.
173 * BDDIR_ENTRY_HI returns the address of the high double-word of the entry.
174 * BDPRT_ENTRY returns the address of the double-word protection entry
175 * corresponding to the page containing the physical address.
176 * BDPRT_ENTRY_S Stores the value into the protection entry.
177 * BDPRT_ENTRY_L Load the value from the protection entry.
178 * BDECC_ENTRY returns the address of the ECC byte corresponding to a
179 * double-word at a specified physical address.
180 * BDECC_ENTRY_H returns the address of the two ECC bytes corresponding to a
181 * quad-word at a specified physical address.
182 */
183#define NODE_BDOOR_BASE(_n) (NODE_HSPEC_BASE(_n) + (NODE_ADDRSPACE_SIZE/2))
184
185#define NODE_BDECC_BASE(_n) (NODE_BDOOR_BASE(_n))
186#define NODE_BDDIR_BASE(_n) (NODE_BDOOR_BASE(_n) + (NODE_ADDRSPACE_SIZE/4))
187#ifdef CONFIG_SGI_IP27
188#define BDDIR_ENTRY_LO(_pa) ((HSPEC_BASE + \
189 NODE_ADDRSPACE_SIZE * 3 / 4 + \
190 0x200) | \
191 UINT64_CAST(_pa) & NASID_MASK | \
192 UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK | \
193 UINT64_CAST(_pa) >> 3 & 0x1f << 4)
194
195#define BDDIR_ENTRY_HI(_pa) ((HSPEC_BASE + \
196 NODE_ADDRSPACE_SIZE * 3 / 4 + \
197 0x208) | \
198 UINT64_CAST(_pa) & NASID_MASK | \
199 UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK | \
200 UINT64_CAST(_pa) >> 3 & 0x1f << 4)
201
202#define BDPRT_ENTRY(_pa, _rgn) ((HSPEC_BASE + \
203 NODE_ADDRSPACE_SIZE * 3 / 4) | \
204 UINT64_CAST(_pa) & NASID_MASK | \
205 UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK | \
206 (_rgn) << 3)
207#define BDPRT_ENTRY_ADDR(_pa, _rgn) (BDPRT_ENTRY((_pa), (_rgn)))
208#define BDPRT_ENTRY_S(_pa, _rgn, _val) (*(__psunsigned_t *)BDPRT_ENTRY((_pa), (_rgn))=(_val))
209#define BDPRT_ENTRY_L(_pa, _rgn) (*(__psunsigned_t *)BDPRT_ENTRY((_pa), (_rgn)))
210
211#define BDECC_ENTRY(_pa) ((HSPEC_BASE + \
212 NODE_ADDRSPACE_SIZE / 2) | \
213 UINT64_CAST(_pa) & NASID_MASK | \
214 UINT64_CAST(_pa) >> 2 & BDECC_UPPER_MASK | \
215 UINT64_CAST(_pa) >> 3 & 3)
216
217/*
218 * Macro to convert a back door directory or protection address into the
219 * raw physical address of the associated cache line or protection page.
220 */
221#define BDADDR_IS_DIR(_ba) ((UINT64_CAST (_ba) & 0x200) != 0)
222#define BDADDR_IS_PRT(_ba) ((UINT64_CAST (_ba) & 0x200) == 0)
223
224#define BDDIR_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \
225 (UINT64_CAST(_ba) & BDDIR_UPPER_MASK)<<2 | \
226 (UINT64_CAST(_ba) & 0x1f << 4) << 3)
227
228#define BDPRT_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \
229 (UINT64_CAST(_ba) & BDDIR_UPPER_MASK)<<2)
230
231#define BDECC_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \
232 (UINT64_CAST(_ba) & BDECC_UPPER_MASK)<<2 | \
233 (UINT64_CAST(_ba) & 3) << 3)
234#endif /* CONFIG_SGI_IP27 */
235
236
237/*
238 * The following macros produce the correct base virtual address for
239 * the hub registers. The LOCAL_HUB_* macros produce the appropriate
240 * address for the local registers. The REMOTE_HUB_* macro produce
241 * the address for the specified hub's registers. The intent is
242 * that the appropriate PI, MD, NI, or II register would be substituted
243 * for _x.
244 */
245
246/*
247 * WARNING:
248 * When certain Hub chip workaround are defined, it's not sufficient
249 * to dereference the *_HUB_ADDR() macros. You should instead use
250 * HUB_L() and HUB_S() if you must deal with pointers to hub registers.
251 * Otherwise, the recommended approach is to use *_HUB_L() and *_HUB_S().
252 * They're always safe.
253 */
254#define LOCAL_HUB_ADDR(_x) (IALIAS_BASE + (_x))
255#define REMOTE_HUB_ADDR(_n, _x) ((NODE_SWIN_BASE(_n, 1) + 0x800000 + (_x)))
256
257#ifndef __ASSEMBLY__
258
259#define LOCAL_HUB_PTR(_x) ((u64 *)LOCAL_HUB_ADDR((_x)))
260#define REMOTE_HUB_PTR(_n, _x) ((u64 *)REMOTE_HUB_ADDR((_n), (_x)))
261
262#define LOCAL_HUB_L(_r) __raw_readq(LOCAL_HUB_PTR(_r))
263#define LOCAL_HUB_S(_r, _d) __raw_writeq((_d), LOCAL_HUB_PTR(_r))
264#define REMOTE_HUB_L(_n, _r) __raw_readq(REMOTE_HUB_PTR((_n), (_r)))
265#define REMOTE_HUB_S(_n, _r, _d) __raw_writeq((_d), \
266 REMOTE_HUB_PTR((_n), (_r)))
267
268#endif /* !__ASSEMBLY__ */
269
270/*
271 * Software structure locations -- permanently fixed
272 * See diagram in kldir.h
273 */
274
275#define PHYS_RAMBASE 0x0
276#define K0_RAMBASE PHYS_TO_K0(PHYS_RAMBASE)
277
278#define EX_HANDLER_OFFSET(slice) ((slice) << 16)
279#define EX_HANDLER_ADDR(nasid, slice) \
280 PHYS_TO_K0(NODE_OFFSET(nasid) | EX_HANDLER_OFFSET(slice))
281#define EX_HANDLER_SIZE 0x0400
282
283#define EX_FRAME_OFFSET(slice) ((slice) << 16 | 0x400)
284#define EX_FRAME_ADDR(nasid, slice) \
285 PHYS_TO_K0(NODE_OFFSET(nasid) | EX_FRAME_OFFSET(slice))
286#define EX_FRAME_SIZE 0x0c00
287
288#define ARCS_SPB_OFFSET 0x1000
289#define ARCS_SPB_ADDR(nasid) \
290 PHYS_TO_K0(NODE_OFFSET(nasid) | ARCS_SPB_OFFSET)
291#define ARCS_SPB_SIZE 0x0400
292
293#define KLDIR_OFFSET 0x2000
294#define KLDIR_ADDR(nasid) \
295 TO_NODE_UNCAC((nasid), KLDIR_OFFSET)
296#define KLDIR_SIZE 0x0400
297
298
299/*
300 * Software structure locations -- indirected through KLDIR
301 * See diagram in kldir.h
302 *
303 * Important: All low memory structures must only be accessed
304 * uncached, except for the symmon stacks.
305 */
306
307#define KLI_LAUNCH 0 /* Dir. entries */
308#define KLI_KLCONFIG 1
309#define KLI_NMI 2
310#define KLI_GDA 3
311#define KLI_FREEMEM 4
312#define KLI_SYMMON_STK 5
313#define KLI_PI_ERROR 6
314#define KLI_KERN_VARS 7
315#define KLI_KERN_XP 8
316#define KLI_KERN_PARTID 9
317
318#ifndef __ASSEMBLY__
319
320#define KLD_BASE(nasid) ((kldir_ent_t *) KLDIR_ADDR(nasid))
321#define KLD_LAUNCH(nasid) (KLD_BASE(nasid) + KLI_LAUNCH)
322#define KLD_NMI(nasid) (KLD_BASE(nasid) + KLI_NMI)
323#define KLD_KLCONFIG(nasid) (KLD_BASE(nasid) + KLI_KLCONFIG)
324#define KLD_PI_ERROR(nasid) (KLD_BASE(nasid) + KLI_PI_ERROR)
325#define KLD_GDA(nasid) (KLD_BASE(nasid) + KLI_GDA)
326#define KLD_SYMMON_STK(nasid) (KLD_BASE(nasid) + KLI_SYMMON_STK)
327#define KLD_FREEMEM(nasid) (KLD_BASE(nasid) + KLI_FREEMEM)
328#define KLD_KERN_VARS(nasid) (KLD_BASE(nasid) + KLI_KERN_VARS)
329#define KLD_KERN_XP(nasid) (KLD_BASE(nasid) + KLI_KERN_XP)
330#define KLD_KERN_PARTID(nasid) (KLD_BASE(nasid) + KLI_KERN_PARTID)
331
332#define LAUNCH_OFFSET(nasid, slice) \
333 (KLD_LAUNCH(nasid)->offset + \
334 KLD_LAUNCH(nasid)->stride * (slice))
335#define LAUNCH_ADDR(nasid, slice) \
336 TO_NODE_UNCAC((nasid), LAUNCH_OFFSET(nasid, slice))
337#define LAUNCH_SIZE(nasid) KLD_LAUNCH(nasid)->size
338
339#define SN_NMI_OFFSET(nasid, slice) \
340 (KLD_NMI(nasid)->offset + \
341 KLD_NMI(nasid)->stride * (slice))
342#define NMI_ADDR(nasid, slice) \
343 TO_NODE_UNCAC((nasid), SN_NMI_OFFSET(nasid, slice))
344#define NMI_SIZE(nasid) KLD_NMI(nasid)->size
345
346#define KLCONFIG_OFFSET(nasid) KLD_KLCONFIG(nasid)->offset
347#define KLCONFIG_ADDR(nasid) \
348 TO_NODE_UNCAC((nasid), KLCONFIG_OFFSET(nasid))
349#define KLCONFIG_SIZE(nasid) KLD_KLCONFIG(nasid)->size
350
351#define GDA_ADDR(nasid) KLD_GDA(nasid)->pointer
352#define GDA_SIZE(nasid) KLD_GDA(nasid)->size
353
354#define SYMMON_STK_OFFSET(nasid, slice) \
355 (KLD_SYMMON_STK(nasid)->offset + \
356 KLD_SYMMON_STK(nasid)->stride * (slice))
357#define SYMMON_STK_STRIDE(nasid) KLD_SYMMON_STK(nasid)->stride
358
359#define SYMMON_STK_ADDR(nasid, slice) \
360 TO_NODE_CAC((nasid), SYMMON_STK_OFFSET(nasid, slice))
361
362#define SYMMON_STK_SIZE(nasid) KLD_SYMMON_STK(nasid)->stride
363
364#define SYMMON_STK_END(nasid) (SYMMON_STK_ADDR(nasid, 0) + KLD_SYMMON_STK(nasid)->size)
365
366#define NODE_OFFSET_TO_K0(_nasid, _off) \
367 PHYS_TO_K0((NODE_OFFSET(_nasid) + (_off)) | CAC_BASE)
368#define NODE_OFFSET_TO_K1(_nasid, _off) \
369 TO_UNCAC((NODE_OFFSET(_nasid) + (_off)) | UNCAC_BASE)
370
371#define KERN_VARS_ADDR(nasid) KLD_KERN_VARS(nasid)->pointer
372#define KERN_VARS_SIZE(nasid) KLD_KERN_VARS(nasid)->size
373
374#endif /* !__ASSEMBLY__ */
375
376
377#endif /* _ASM_SN_ADDRS_H */