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review.evervolv.com / android_kernel_oneplus_msm8996 / edc123d18397008fcd4fdf04f60e033ba1042834 / . / include / asm-mips / sn / kldir.h
blob: 97ad52e3cbc7ded4f57f853b3bf27577d979aeef [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]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#include <linux/config.h>
15
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]16/*
17 * The kldir memory area resides at a fixed place in each node's memory and
18 * provides pointers to most other IP27 memory areas. This allows us to
19 * resize and/or relocate memory areas at a later time without breaking all
20 * firmware and kernels that use them. Indices in the array are
21 * permanently dedicated to areas listed below. Some memory areas (marked
22 * below) reside at a permanently fixed location, but are included in the
23 * directory for completeness.
24 */
25
26#define KLDIR_MAGIC 0x434d5f53505f5357
27
28/*
29 * The upper portion of the memory map applies during boot
30 * only and is overwritten by IRIX/SYMMON.
31 *
32 * MEMORY MAP PER NODE
33 *
34 * 0x2000000 (32M) +-----------------------------------------+
35 * | IO6 BUFFERS FOR FLASH ENET IOC3 |
36 * 0x1F80000 (31.5M) +-----------------------------------------+
37 * | IO6 TEXT/DATA/BSS/stack |
38 * 0x1C00000 (30M) +-----------------------------------------+
39 * | IO6 PROM DEBUG TEXT/DATA/BSS/stack |
40 * 0x0800000 (28M) +-----------------------------------------+
41 * | IP27 PROM TEXT/DATA/BSS/stack |
42 * 0x1B00000 (27M) +-----------------------------------------+
43 * | IP27 CFG |
44 * 0x1A00000 (26M) +-----------------------------------------+
45 * | Graphics PROM |
46 * 0x1800000 (24M) +-----------------------------------------+
47 * | 3rd Party PROM drivers |
48 * 0x1600000 (22M) +-----------------------------------------+
49 * | |
50 * | Free |
51 * | |
52 * +-----------------------------------------+
53 * | UNIX DEBUG Version |
54 * 0x190000 (2M--) +-----------------------------------------+
55 * | SYMMON |
56 * | (For UNIX Debug only) |
57 * 0x34000 (208K) +-----------------------------------------+
58 * | SYMMON STACK [NUM_CPU_PER_NODE] |
59 * | (For UNIX Debug only) |
60 * 0x25000 (148K) +-----------------------------------------+
61 * | KLCONFIG - II (temp) |
62 * | |
63 * | ---------------------------- |
64 * | |
65 * | UNIX NON-DEBUG Version |
66 * 0x19000 (100K) +-----------------------------------------+
67 *
68 *
69 * The lower portion of the memory map contains information that is
70 * permanent and is used by the IP27PROM, IO6PROM and IRIX.
71 *
72 * 0x19000 (100K) +-----------------------------------------+
73 * | |
74 * | PI Error Spools (32K) |
75 * | |
76 * 0x12000 (72K) +-----------------------------------------+
77 * | Unused |
78 * 0x11c00 (71K) +-----------------------------------------+
79 * | CPU 1 NMI Eframe area |
80 * 0x11a00 (70.5K) +-----------------------------------------+
81 * | CPU 0 NMI Eframe area |
82 * 0x11800 (70K) +-----------------------------------------+
83 * | CPU 1 NMI Register save area |
84 * 0x11600 (69.5K) +-----------------------------------------+
85 * | CPU 0 NMI Register save area |
86 * 0x11400 (69K) +-----------------------------------------+
87 * | GDA (1k) |
88 * 0x11000 (68K) +-----------------------------------------+
89 * | Early cache Exception stack |
90 * | and/or |
91 * | kernel/io6prom nmi registers |
92 * 0x10800 (66k) +-----------------------------------------+
93 * | cache error eframe |
94 * 0x10400 (65K) +-----------------------------------------+
95 * | Exception Handlers (UALIAS copy) |
96 * 0x10000 (64K) +-----------------------------------------+
97 * | |
98 * | |
99 * | KLCONFIG - I (permanent) (48K) |
100 * | |
101 * | |
102 * | |
103 * 0x4000 (16K) +-----------------------------------------+
104 * | NMI Handler (Protected Page) |
105 * 0x3000 (12K) +-----------------------------------------+
106 * | ARCS PVECTORS (master node only) |
107 * 0x2c00 (11K) +-----------------------------------------+
108 * | ARCS TVECTORS (master node only) |
109 * 0x2800 (10K) +-----------------------------------------+
110 * | LAUNCH [NUM_CPU] |
111 * 0x2400 (9K) +-----------------------------------------+
112 * | Low memory directory (KLDIR) |
113 * 0x2000 (8K) +-----------------------------------------+
114 * | ARCS SPB (1K) |
115 * 0x1000 (4K) +-----------------------------------------+
116 * | Early cache Exception stack |
117 * | and/or |
118 * | kernel/io6prom nmi registers |
119 * 0x800 (2k) +-----------------------------------------+
120 * | cache error eframe |
121 * 0x400 (1K) +-----------------------------------------+
122 * | Exception Handlers |
123 * 0x0 (0K) +-----------------------------------------+
124 */
125
126#ifdef __ASSEMBLY__
127#define KLDIR_OFF_MAGIC 0x00
128#define KLDIR_OFF_OFFSET 0x08
129#define KLDIR_OFF_POINTER 0x10
130#define KLDIR_OFF_SIZE 0x18
131#define KLDIR_OFF_COUNT 0x20
132#define KLDIR_OFF_STRIDE 0x28
133#endif /* __ASSEMBLY__ */
134
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]135/*
136 * This is defined here because IP27_SYMMON_STK_SIZE must be at least what
137 * we define here. Since it's set up in the prom. We can't redefine it later
138 * and expect more space to be allocated. The way to find out the true size
139 * of the symmon stacks is to divide SYMMON_STK_SIZE by SYMMON_STK_STRIDE
140 * for a particular node.
141 */
142#define SYMMON_STACK_SIZE 0x8000
143
Ralf Baechleedc123d2006-06-07 20:07:29 +0100[diff] [blame^]144#if defined (PROM)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]145
146/*
147 * These defines are prom version dependent. No code other than the IP27
148 * prom should attempt to use these values.
149 */
150#define IP27_LAUNCH_OFFSET 0x2400
151#define IP27_LAUNCH_SIZE 0x400
152#define IP27_LAUNCH_COUNT 2
153#define IP27_LAUNCH_STRIDE 0x200
154
155#define IP27_KLCONFIG_OFFSET 0x4000
156#define IP27_KLCONFIG_SIZE 0xc000
157#define IP27_KLCONFIG_COUNT 1
158#define IP27_KLCONFIG_STRIDE 0
159
160#define IP27_NMI_OFFSET 0x3000
161#define IP27_NMI_SIZE 0x40
162#define IP27_NMI_COUNT 2
163#define IP27_NMI_STRIDE 0x40
164
165#define IP27_PI_ERROR_OFFSET 0x12000
166#define IP27_PI_ERROR_SIZE 0x4000
167#define IP27_PI_ERROR_COUNT 1
168#define IP27_PI_ERROR_STRIDE 0
169
170#define IP27_SYMMON_STK_OFFSET 0x25000
171#define IP27_SYMMON_STK_SIZE 0xe000
172#define IP27_SYMMON_STK_COUNT 2
173/* IP27_SYMMON_STK_STRIDE must be >= SYMMON_STACK_SIZE */
174#define IP27_SYMMON_STK_STRIDE 0x7000
175
176#define IP27_FREEMEM_OFFSET 0x19000
177#define IP27_FREEMEM_SIZE -1
178#define IP27_FREEMEM_COUNT 1
179#define IP27_FREEMEM_STRIDE 0
180
Ralf Baechleedc123d2006-06-07 20:07:29 +0100[diff] [blame^]181#endif /* PROM */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]182/*
183 * There will be only one of these in a partition so the IO6 must set it up.
184 */
185#define IO6_GDA_OFFSET 0x11000
186#define IO6_GDA_SIZE 0x400
187#define IO6_GDA_COUNT 1
188#define IO6_GDA_STRIDE 0
189
190/*
191 * save area of kernel nmi regs in the prom format
192 */
193#define IP27_NMI_KREGS_OFFSET 0x11400
194#define IP27_NMI_KREGS_CPU_SIZE 0x200
195/*
196 * save area of kernel nmi regs in eframe format
197 */
198#define IP27_NMI_EFRAME_OFFSET 0x11800
199#define IP27_NMI_EFRAME_SIZE 0x200
200
201#define KLDIR_ENT_SIZE 0x40
202#define KLDIR_MAX_ENTRIES (0x400 / 0x40)
203
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]204#ifndef __ASSEMBLY__
205typedef struct kldir_ent_s {
206 u64 magic; /* Indicates validity of entry */
207 off_t offset; /* Offset from start of node space */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]208 unsigned long pointer; /* Pointer to area in some cases */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]209 size_t size; /* Size in bytes */
210 u64 count; /* Repeat count if array, 1 if not */
211 size_t stride; /* Stride if array, 0 if not */
212 char rsvd[16]; /* Pad entry to 0x40 bytes */
213 /* NOTE: These 16 bytes are used in the Partition KLDIR
214 entry to store partition info. Refer to klpart.h for this. */
215} kldir_ent_t;
216#endif /* !__ASSEMBLY__ */
217
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]218#endif /* _ASM_SN_KLDIR_H */