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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 * Derived from IRIX <sys/SN/kldir.h>, revision 1.21.
7 *
8 * Copyright (C) 1992 - 1997, 1999, 2000 Silicon Graphics, Inc.
9 * Copyright (C) 1999, 2000 by Ralf Baechle
10 */
11#ifndef _ASM_SN_KLDIR_H
12#define _ASM_SN_KLDIR_H
13
14
15/*
16 * The kldir memory area resides at a fixed place in each node's memory and
17 * provides pointers to most other IP27 memory areas. This allows us to
18 * resize and/or relocate memory areas at a later time without breaking all
19 * firmware and kernels that use them. Indices in the array are
20 * permanently dedicated to areas listed below. Some memory areas (marked
21 * below) reside at a permanently fixed location, but are included in the
22 * directory for completeness.
23 */
24
25#define KLDIR_MAGIC 0x434d5f53505f5357
26
27/*
28 * The upper portion of the memory map applies during boot
29 * only and is overwritten by IRIX/SYMMON.
30 *
31 * MEMORY MAP PER NODE
32 *
33 * 0x2000000 (32M) +-----------------------------------------+
34 * | IO6 BUFFERS FOR FLASH ENET IOC3 |
35 * 0x1F80000 (31.5M) +-----------------------------------------+
36 * | IO6 TEXT/DATA/BSS/stack |
37 * 0x1C00000 (30M) +-----------------------------------------+
38 * | IO6 PROM DEBUG TEXT/DATA/BSS/stack |
39 * 0x0800000 (28M) +-----------------------------------------+
40 * | IP27 PROM TEXT/DATA/BSS/stack |
41 * 0x1B00000 (27M) +-----------------------------------------+
42 * | IP27 CFG |
43 * 0x1A00000 (26M) +-----------------------------------------+
44 * | Graphics PROM |
45 * 0x1800000 (24M) +-----------------------------------------+
46 * | 3rd Party PROM drivers |
47 * 0x1600000 (22M) +-----------------------------------------+
48 * | |
49 * | Free |
50 * | |
51 * +-----------------------------------------+
52 * | UNIX DEBUG Version |
53 * 0x190000 (2M--) +-----------------------------------------+
54 * | SYMMON |
55 * | (For UNIX Debug only) |
56 * 0x34000 (208K) +-----------------------------------------+
57 * | SYMMON STACK [NUM_CPU_PER_NODE] |
58 * | (For UNIX Debug only) |
59 * 0x25000 (148K) +-----------------------------------------+
60 * | KLCONFIG - II (temp) |
61 * | |
62 * | ---------------------------- |
63 * | |
64 * | UNIX NON-DEBUG Version |
65 * 0x19000 (100K) +-----------------------------------------+
66 *
67 *
68 * The lower portion of the memory map contains information that is
69 * permanent and is used by the IP27PROM, IO6PROM and IRIX.
70 *
71 * 0x19000 (100K) +-----------------------------------------+
72 * | |
73 * | PI Error Spools (32K) |
74 * | |
75 * 0x12000 (72K) +-----------------------------------------+
76 * | Unused |
77 * 0x11c00 (71K) +-----------------------------------------+
78 * | CPU 1 NMI Eframe area |
79 * 0x11a00 (70.5K) +-----------------------------------------+
80 * | CPU 0 NMI Eframe area |
81 * 0x11800 (70K) +-----------------------------------------+
82 * | CPU 1 NMI Register save area |
83 * 0x11600 (69.5K) +-----------------------------------------+
84 * | CPU 0 NMI Register save area |
85 * 0x11400 (69K) +-----------------------------------------+
86 * | GDA (1k) |
87 * 0x11000 (68K) +-----------------------------------------+
88 * | Early cache Exception stack |
89 * | and/or |
90 * | kernel/io6prom nmi registers |
91 * 0x10800 (66k) +-----------------------------------------+
92 * | cache error eframe |
93 * 0x10400 (65K) +-----------------------------------------+
94 * | Exception Handlers (UALIAS copy) |
95 * 0x10000 (64K) +-----------------------------------------+
96 * | |
97 * | |
98 * | KLCONFIG - I (permanent) (48K) |
99 * | |
100 * | |
101 * | |
102 * 0x4000 (16K) +-----------------------------------------+
103 * | NMI Handler (Protected Page) |
104 * 0x3000 (12K) +-----------------------------------------+
105 * | ARCS PVECTORS (master node only) |
106 * 0x2c00 (11K) +-----------------------------------------+
107 * | ARCS TVECTORS (master node only) |
108 * 0x2800 (10K) +-----------------------------------------+
109 * | LAUNCH [NUM_CPU] |
110 * 0x2400 (9K) +-----------------------------------------+
111 * | Low memory directory (KLDIR) |
112 * 0x2000 (8K) +-----------------------------------------+
113 * | ARCS SPB (1K) |
114 * 0x1000 (4K) +-----------------------------------------+
115 * | Early cache Exception stack |
116 * | and/or |
117 * | kernel/io6prom nmi registers |
118 * 0x800 (2k) +-----------------------------------------+
119 * | cache error eframe |
120 * 0x400 (1K) +-----------------------------------------+
121 * | Exception Handlers |
122 * 0x0 (0K) +-----------------------------------------+
123 */
124
125#ifdef __ASSEMBLY__
126#define KLDIR_OFF_MAGIC 0x00
127#define KLDIR_OFF_OFFSET 0x08
128#define KLDIR_OFF_POINTER 0x10
129#define KLDIR_OFF_SIZE 0x18
130#define KLDIR_OFF_COUNT 0x20
131#define KLDIR_OFF_STRIDE 0x28
132#endif /* __ASSEMBLY__ */
133
134/*
135 * This is defined here because IP27_SYMMON_STK_SIZE must be at least what
136 * we define here. Since it's set up in the prom. We can't redefine it later
137 * and expect more space to be allocated. The way to find out the true size
138 * of the symmon stacks is to divide SYMMON_STK_SIZE by SYMMON_STK_STRIDE
139 * for a particular node.
140 */
141#define SYMMON_STACK_SIZE 0x8000
142
143#if defined(PROM)
144
145/*
146 * These defines are prom version dependent. No code other than the IP27
147 * prom should attempt to use these values.
148 */
149#define IP27_LAUNCH_OFFSET 0x2400
150#define IP27_LAUNCH_SIZE 0x400
151#define IP27_LAUNCH_COUNT 2
152#define IP27_LAUNCH_STRIDE 0x200
153
154#define IP27_KLCONFIG_OFFSET 0x4000
155#define IP27_KLCONFIG_SIZE 0xc000
156#define IP27_KLCONFIG_COUNT 1
157#define IP27_KLCONFIG_STRIDE 0
158
159#define IP27_NMI_OFFSET 0x3000
160#define IP27_NMI_SIZE 0x40
161#define IP27_NMI_COUNT 2
162#define IP27_NMI_STRIDE 0x40
163
164#define IP27_PI_ERROR_OFFSET 0x12000
165#define IP27_PI_ERROR_SIZE 0x4000
166#define IP27_PI_ERROR_COUNT 1
167#define IP27_PI_ERROR_STRIDE 0
168
169#define IP27_SYMMON_STK_OFFSET 0x25000
170#define IP27_SYMMON_STK_SIZE 0xe000
171#define IP27_SYMMON_STK_COUNT 2
172/* IP27_SYMMON_STK_STRIDE must be >= SYMMON_STACK_SIZE */
173#define IP27_SYMMON_STK_STRIDE 0x7000
174
175#define IP27_FREEMEM_OFFSET 0x19000
176#define IP27_FREEMEM_SIZE -1
177#define IP27_FREEMEM_COUNT 1
178#define IP27_FREEMEM_STRIDE 0
179
180#endif /* PROM */
181/*
182 * There will be only one of these in a partition so the IO6 must set it up.
183 */
184#define IO6_GDA_OFFSET 0x11000
185#define IO6_GDA_SIZE 0x400
186#define IO6_GDA_COUNT 1
187#define IO6_GDA_STRIDE 0
188
189/*
190 * save area of kernel nmi regs in the prom format
191 */
192#define IP27_NMI_KREGS_OFFSET 0x11400
193#define IP27_NMI_KREGS_CPU_SIZE 0x200
194/*
195 * save area of kernel nmi regs in eframe format
196 */
197#define IP27_NMI_EFRAME_OFFSET 0x11800
198#define IP27_NMI_EFRAME_SIZE 0x200
199
200#define KLDIR_ENT_SIZE 0x40
201#define KLDIR_MAX_ENTRIES (0x400 / 0x40)
202
203#ifndef __ASSEMBLY__
204typedef struct kldir_ent_s {
205 u64 magic; /* Indicates validity of entry */
206 off_t offset; /* Offset from start of node space */
207 unsigned long pointer; /* Pointer to area in some cases */
208 size_t size; /* Size in bytes */
209 u64 count; /* Repeat count if array, 1 if not */
210 size_t stride; /* Stride if array, 0 if not */
211 char rsvd[16]; /* Pad entry to 0x40 bytes */
212 /* NOTE: These 16 bytes are used in the Partition KLDIR
213 entry to store partition info. Refer to klpart.h for this. */
214} kldir_ent_t;
215#endif /* !__ASSEMBLY__ */
216
217#endif /* _ASM_SN_KLDIR_H */
1/* SPDX-License-Identifier: GPL-2.0 */
2
3#ifndef _ASM_SN_KLDIR_H
4#define _ASM_SN_KLDIR_H
5
6#define KLDIR_MAGIC 0x434d5f53505f5357
7
8#define KLDIR_OFF_MAGIC 0x00
9#define KLDIR_OFF_OFFSET 0x08
10#define KLDIR_OFF_POINTER 0x10
11#define KLDIR_OFF_SIZE 0x18
12#define KLDIR_OFF_COUNT 0x20
13#define KLDIR_OFF_STRIDE 0x28
14
15#define KLDIR_ENT_SIZE 0x40
16#define KLDIR_MAX_ENTRIES (0x400 / 0x40)
17
18#ifndef __ASSEMBLY__
19typedef struct kldir_ent_s {
20 u64 magic; /* Indicates validity of entry */
21 off_t offset; /* Offset from start of node space */
22 unsigned long pointer; /* Pointer to area in some cases */
23 size_t size; /* Size in bytes */
24 u64 count; /* Repeat count if array, 1 if not */
25 size_t stride; /* Stride if array, 0 if not */
26 char rsvd[16]; /* Pad entry to 0x40 bytes */
27 /* NOTE: These 16 bytes are used in the Partition KLDIR
28 entry to store partition info. Refer to klpart.h for this. */
29} kldir_ent_t;
30#endif /* !__ASSEMBLY__ */
31
32#ifdef CONFIG_SGI_IP27
33#include <asm/sn/sn0/kldir.h>
34#endif
35
36#endif /* _ASM_SN_KLDIR_H */