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1da177e4 LT |
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 | ||
1da177e4 | 14 | |
1da177e4 LT |
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 | |
70342287 RB |
19 | * firmware and kernels that use them. Indices in the array are |
20 | * permanently dedicated to areas listed below. Some memory areas (marked | |
1da177e4 LT |
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 | * | |
70342287 | 31 | * MEMORY MAP PER NODE |
1da177e4 | 32 | * |
70342287 RB |
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) +-----------------------------------------+ | |
1da177e4 LT |
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 | * | |
70342287 RB |
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 | | |
1da177e4 | 91 | * 0x10800 (66k) +-----------------------------------------+ |
70342287 RB |
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) +-----------------------------------------+ | |
1da177e4 LT |
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 | ||
1da177e4 LT |
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 | ||
49a89efb | 143 | #if defined(PROM) |
1da177e4 LT |
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 | ||
edc123d1 | 180 | #endif /* PROM */ |
1da177e4 LT |
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 | ||
1da177e4 LT |
203 | #ifndef __ASSEMBLY__ |
204 | typedef struct kldir_ent_s { | |
70342287 | 205 | u64 magic; /* Indicates validity of entry */ |
1da177e4 | 206 | off_t offset; /* Offset from start of node space */ |
1da177e4 | 207 | unsigned long pointer; /* Pointer to area in some cases */ |
70342287 | 208 | size_t size; /* Size in bytes */ |
1da177e4 | 209 | u64 count; /* Repeat count if array, 1 if not */ |
70342287 RB |
210 | size_t stride; /* Stride if array, 0 if not */ |
211 | char rsvd[16]; /* Pad entry to 0x40 bytes */ | |
1da177e4 LT |
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 | ||
1da177e4 | 217 | #endif /* _ASM_SN_KLDIR_H */ |