4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
8 * Copyright (c) 1992-1999,2001 Silicon Graphics, Inc. All rights reserved.
12 #ifndef _ASM_IA64_SN_ADDRS_H
13 #define _ASM_IA64_SN_ADDRS_H
15 #include <linux/config.h>
17 #if defined (CONFIG_IA64_SGI_SN1)
18 #include <asm/sn/sn1/addrs.h>
19 #elif defined (CONFIG_IA64_SGI_SN2)
20 #include <asm/sn/sn2/addrs.h>
22 #error <<<BOMB! addrs.h defined only for SN1, or SN2 >>>
23 #endif /* !SN1 && !SN2 */
26 #include <asm/sn/types.h>
31 #define PS_UINT_CAST (__psunsigned_t)
32 #define UINT64_CAST (uint64_t)
33 #ifdef CONFIG_IA64_SGI_SN2
34 #define HUBREG_CAST (volatile mmr_t *)
36 #define HUBREG_CAST (volatile hubreg_t *)
51 * The following macros are used to index to the beginning of a specific
52 * node's address space.
55 #ifdef CONFIG_IA64_SGI_SN2 /* SN2 has an extra AS field between node offset and node id (nasid) */
56 #define NODE_OFFSET(_n) (UINT64_CAST (_n) << NASID_SHFT)
58 #define NODE_OFFSET(_n) (UINT64_CAST (_n) << NODE_SIZE_BITS)
61 #define NODE_CAC_BASE(_n) (CAC_BASE + NODE_OFFSET(_n))
62 #define NODE_HSPEC_BASE(_n) (HSPEC_BASE + NODE_OFFSET(_n))
63 #define NODE_IO_BASE(_n) (IO_BASE + NODE_OFFSET(_n))
64 #define NODE_MSPEC_BASE(_n) (MSPEC_BASE + NODE_OFFSET(_n))
65 #define NODE_UNCAC_BASE(_n) (UNCAC_BASE + NODE_OFFSET(_n))
67 #define TO_NODE(_n, _x) (NODE_OFFSET(_n) | ((_x) ))
68 #define TO_NODE_CAC(_n, _x) (NODE_CAC_BASE(_n) | ((_x) & TO_PHYS_MASK))
69 #define TO_NODE_UNCAC(_n, _x) (NODE_UNCAC_BASE(_n) | ((_x) & TO_PHYS_MASK))
70 #define TO_NODE_MSPEC(_n, _x) (NODE_MSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK))
71 #define TO_NODE_HSPEC(_n, _x) (NODE_HSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK))
74 #define RAW_NODE_SWIN_BASE(nasid, widget) \
75 (NODE_IO_BASE(nasid) + (UINT64_CAST (widget) << SWIN_SIZE_BITS))
77 #define WIDGETID_GET(addr) ((unsigned char)((addr >> SWIN_SIZE_BITS) & 0xff))
80 * The following definitions pertain to the IO special address
81 * space. They define the location of the big and little windows
85 #define SWIN_SIZE_BITS 24
86 #define SWIN_SIZE (UINT64_CAST 1 << 24)
87 #define SWIN_SIZEMASK (SWIN_SIZE - 1)
88 #define SWIN_WIDGET_MASK 0xF
91 * Convert smallwindow address to xtalk address.
93 * 'addr' can be physical or virtual address, but will be converted
94 * to Xtalk address in the range 0 -> SWINZ_SIZEMASK
96 #define SWIN_WIDGETADDR(addr) ((addr) & SWIN_SIZEMASK)
97 #define SWIN_WIDGETNUM(addr) (((addr) >> SWIN_SIZE_BITS) & SWIN_WIDGET_MASK)
99 * Verify if addr belongs to small window address on node with "nasid"
102 * NOTE: "addr" is expected to be XKPHYS address, and NOT physical
107 #define NODE_SWIN_ADDR(nasid, addr) \
108 (((addr) >= NODE_SWIN_BASE(nasid, 0)) && \
109 ((addr) < (NODE_SWIN_BASE(nasid, HUB_NUM_WIDGET) + SWIN_SIZE)\
113 * The following define the major position-independent aliases used
115 * LBOOT -- 256MB in size, reads in the LBOOT area result in
116 * uncached references to the local hub's boot prom and
117 * other directory-bus connected devices.
118 * IALIAS -- 8MB in size, reads in the IALIAS result in uncached
119 * references to the local hub's registers.
122 #if defined CONFIG_IA64_SGI_SN1
123 #define LREG_BASE (HSPEC_BASE + 0x10000000)
124 #define LREG_SIZE 0x8000000 /* 128 MB */
125 #define LREG_LIMIT (LREG_BASE + LREG_SIZE)
126 #define LBOOT_BASE (LREG_LIMIT)
127 #define LBOOT_SIZE 0x8000000 /* 128 MB */
128 #define LBOOT_LIMIT (LBOOT_BASE + LBOOT_SIZE)
129 #define LBOOT_STRIDE 0x2000000 /* two PROMs, on 32M boundaries */
132 #define HUB_REGISTER_WIDGET 1
133 #ifdef CONFIG_IA64_SGI_SN2
134 #define IALIAS_BASE LOCAL_SWIN_BASE(HUB_REGISTER_WIDGET)
136 #define IALIAS_BASE NODE_SWIN_BASE(0, HUB_REGISTER_WIDGET)
138 #define IALIAS_SIZE 0x800000 /* 8 Megabytes */
139 #define IS_IALIAS(_a) (((_a) >= IALIAS_BASE) && \
140 ((_a) < (IALIAS_BASE + IALIAS_SIZE)))
143 * Macro for referring to Hub's RBOOT space
146 #if defined CONFIG_IA64_SGI_SN1
148 #define NODE_LREG_BASE(_n) (NODE_HSPEC_BASE(_n) + 0x30000000)
149 #define NODE_LREG_LIMIT(_n) (NODE_LREG_BASE(_n) + LREG_SIZE)
150 #define RREG_BASE(_n) (NODE_LREG_BASE(_n))
151 #define RREG_LIMIT(_n) (NODE_LREG_LIMIT(_n))
152 #define RBOOT_SIZE 0x8000000 /* 128 Megabytes */
153 #define NODE_RBOOT_BASE(_n) (NODE_HSPEC_BASE(_n) + 0x38000000)
154 #define NODE_RBOOT_LIMIT(_n) (NODE_RBOOT_BASE(_n) + RBOOT_SIZE)
160 * The following macros produce the correct base virtual address for
161 * the hub registers. The LOCAL_HUB_* macros produce the appropriate
162 * address for the local registers. The REMOTE_HUB_* macro produce
163 * the address for the specified hub's registers. The intent is
164 * that the appropriate PI, MD, NI, or II register would be substituted
169 #ifdef CONFIG_IA64_SGI_SN2
171 * SN2 has II mmr's located inside small window space like SN0 & SN1,
172 * but has all other non-II mmr's located at the top of big window
173 * space, unlike SN0 & SN1.
175 #define LOCAL_HUB_BASE(_x) (LOCAL_MMR_ADDR(_x) | (((~(_x)) & BWIN_TOP)>>8))
176 #define REMOTE_HUB_BASE(_x) \
177 (UNCACHED | GLOBAL_MMR_SPACE | \
178 (((~(_x)) & BWIN_TOP)>>8) | \
179 (((~(_x)) & BWIN_TOP)>>9) | (_x))
181 #define LOCAL_HUB(_x) (HUBREG_CAST LOCAL_HUB_BASE(_x))
182 #define REMOTE_HUB(_n, _x) \
183 (HUBREG_CAST (REMOTE_HUB_BASE(_x) | ((((long)(_n))<<NASID_SHFT))))
185 #else /* not CONFIG_IA64_SGI_SN2 */
187 #define LOCAL_HUB(_x) (HUBREG_CAST (IALIAS_BASE + (_x)))
188 #define REMOTE_HUB(_n, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \
192 #ifdef CONFIG_IA64_SGI_SN1
193 #define LOCAL_HSPEC(_x) (HUBREG_CAST (LREG_BASE + (_x)))
194 #define REMOTE_HSPEC(_n, _x) (HUBREG_CAST (RREG_BASE(_n) + (_x)))
195 #endif /* CONFIG_IA64_SGI_SN1 */
200 * When certain Hub chip workaround are defined, it's not sufficient
201 * to dereference the *_HUB_ADDR() macros. You should instead use
202 * HUB_L() and HUB_S() if you must deal with pointers to hub registers.
203 * Otherwise, the recommended approach is to use *_HUB_L() and *_HUB_S().
204 * They're always safe.
206 #ifdef CONFIG_IA64_SGI_SN2
207 #define LOCAL_HUB_ADDR(_x) \
208 (((_x) & BWIN_TOP) ? (HUBREG_CAST (LOCAL_MMR_ADDR(_x))) \
209 : (HUBREG_CAST (IALIAS_BASE + (_x))))
210 #define REMOTE_HUB_ADDR(_n, _x) \
211 (((_x) & BWIN_TOP) ? (HUBREG_CAST (GLOBAL_MMR_ADDR(_n, _x))) \
212 : (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + 0x800000 + (_x))))
214 #define LOCAL_HUB_ADDR(_x) (HUBREG_CAST (IALIAS_BASE + (_x)))
215 #define REMOTE_HUB_ADDR(_n, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \
218 #if CONFIG_IA64_SGI_SN1
219 #define REMOTE_HUB_PI_ADDR(_n, _sn, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \
220 0x800000 + PIREG(_x, _sn)))
223 #ifdef CONFIG_IA64_SGI_SN1
224 #define LOCAL_HSPEC_ADDR(_x) (HUBREG_CAST (LREG_BASE + (_x)))
225 #define REMOTE_HSPEC_ADDR(_n, _x) (HUBREG_CAST (RREG_BASE(_n) + (_x)))
226 #endif /* CONFIG_IA64_SGI_SN1 */
230 #define HUB_L(_a) *(_a)
231 #define HUB_S(_a, _d) *(_a) = (_d)
233 #define LOCAL_HUB_L(_r) HUB_L(LOCAL_HUB_ADDR(_r))
234 #define LOCAL_HUB_S(_r, _d) HUB_S(LOCAL_HUB_ADDR(_r), (_d))
235 #define REMOTE_HUB_L(_n, _r) HUB_L(REMOTE_HUB_ADDR((_n), (_r)))
236 #define REMOTE_HUB_S(_n, _r, _d) HUB_S(REMOTE_HUB_ADDR((_n), (_r)), (_d))
237 #define REMOTE_HUB_PI_L(_n, _sn, _r) HUB_L(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)))
238 #define REMOTE_HUB_PI_S(_n, _sn, _r, _d) HUB_S(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)), (_d))
240 #ifdef CONFIG_IA64_SGI_SN1
241 #define LOCAL_HSPEC_L(_r) HUB_L(LOCAL_HSPEC_ADDR(_r))
242 #define LOCAL_HSPEC_S(_r, _d) HUB_S(LOCAL_HSPEC_ADDR(_r), (_d))
243 #define REMOTE_HSPEC_L(_n, _r) HUB_L(REMOTE_HSPEC_ADDR((_n), (_r)))
244 #define REMOTE_HSPEC_S(_n, _r, _d) HUB_S(REMOTE_HSPEC_ADDR((_n), (_r)), (_d))
245 #endif /* CONFIG_IA64_SGI_SN1 */
247 #endif /* __ASSEMBLY__ */
250 * The following macros are used to get to a hub/bridge register, given
251 * the base of the register space.
253 #define HUB_REG_PTR(_base, _off) \
254 (HUBREG_CAST ((__psunsigned_t)(_base) + (__psunsigned_t)(_off)))
256 #define HUB_REG_PTR_L(_base, _off) \
257 HUB_L(HUB_REG_PTR((_base), (_off)))
259 #define HUB_REG_PTR_S(_base, _off, _data) \
260 HUB_S(HUB_REG_PTR((_base), (_off)), (_data))
263 * Software structure locations -- permanently fixed
264 * See diagram in kldir.h
267 #define PHYS_RAMBASE 0x0
268 #define K0_RAMBASE PHYS_TO_K0(PHYS_RAMBASE)
270 #define ARCS_SPB_OFFSET 0x1000
271 #define ARCS_SPB_ADDR(nasid) \
272 PHYS_TO_K0(NODE_OFFSET(nasid) | ARCS_SPB_OFFSET)
273 #define ARCS_SPB_SIZE 0x0400
275 #define KLDIR_OFFSET 0x2000
276 #define KLDIR_ADDR(nasid) \
277 TO_NODE_CAC((nasid), KLDIR_OFFSET)
278 #define KLDIR_SIZE 0x0400
282 * Software structure locations -- indirected through KLDIR
283 * See diagram in kldir.h
285 * Important: All low memory structures must only be accessed
286 * uncached, except for the symmon stacks.
289 #define KLI_LAUNCH 0 /* Dir. entries */
290 #define KLI_KLCONFIG 1
293 #define KLI_FREEMEM 4
294 #define KLI_SYMMON_STK 5
295 #define KLI_PI_ERROR 6
296 #define KLI_KERN_VARS 7
297 #define KLI_KERN_XP 8
298 #define KLI_KERN_PARTID 9
302 #define KLD_BASE(nasid) ((kldir_ent_t *) KLDIR_ADDR(nasid))
303 #define KLD_LAUNCH(nasid) (KLD_BASE(nasid) + KLI_LAUNCH)
304 #define KLD_NMI(nasid) (KLD_BASE(nasid) + KLI_NMI)
305 #define KLD_KLCONFIG(nasid) (KLD_BASE(nasid) + KLI_KLCONFIG)
306 #define KLD_PI_ERROR(nasid) (KLD_BASE(nasid) + KLI_PI_ERROR)
307 #define KLD_GDA(nasid) (KLD_BASE(nasid) + KLI_GDA)
308 #define KLD_SYMMON_STK(nasid) (KLD_BASE(nasid) + KLI_SYMMON_STK)
309 #define KLD_FREEMEM(nasid) (KLD_BASE(nasid) + KLI_FREEMEM)
310 #define KLD_KERN_VARS(nasid) (KLD_BASE(nasid) + KLI_KERN_VARS)
311 #define KLD_KERN_XP(nasid) (KLD_BASE(nasid) + KLI_KERN_XP)
312 #define KLD_KERN_PARTID(nasid) (KLD_BASE(nasid) + KLI_KERN_PARTID)
314 #ifndef CONFIG_IA64_SGI_SN2
315 #define KLCONFIG_OFFSET(nasid) KLD_KLCONFIG(nasid)->offset
317 #define KLCONFIG_OFFSET(nasid) \
318 ia64_sn_get_klconfig_addr(nasid)
319 #endif /* CONFIG_IA64_SGI_SN2 */
321 #define KLCONFIG_ADDR(nasid) \
322 TO_NODE_CAC((nasid), KLCONFIG_OFFSET(nasid))
323 #define KLCONFIG_SIZE(nasid) KLD_KLCONFIG(nasid)->size
325 #define GDA_ADDR(nasid) KLD_GDA(nasid)->pointer
326 #define GDA_SIZE(nasid) KLD_GDA(nasid)->size
328 #define NODE_OFFSET_TO_K0(_nasid, _off) \
329 (PAGE_OFFSET | NODE_OFFSET(_nasid) | (_off))
331 #endif /* __ASSEMBLY__ */
333 #endif /* _ASM_IA64_SN_ADDRS_H */