aboutsummaryrefslogtreecommitdiff
path: root/arch/ppc64/kernel/pacaData.c
blob: a3e0975c26c1a9938fc30dee663a428801866e38 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
/*
 * c 2001 PPC 64 Team, IBM Corp
 *
 *      This program is free software; you can redistribute it and/or
 *      modify it under the terms of the GNU General Public License
 *      as published by the Free Software Foundation; either version
 *      2 of the License, or (at your option) any later version.
 */

#include <linux/config.h>
#include <linux/types.h>
#include <linux/threads.h>
#include <linux/module.h>

#include <asm/processor.h>
#include <asm/ptrace.h>
#include <asm/page.h>

#include <asm/lppaca.h>
#include <asm/iSeries/ItLpQueue.h>
#include <asm/paca.h>

static union {
	struct systemcfg	data;
	u8			page[PAGE_SIZE];
} systemcfg_store __page_aligned;
struct systemcfg *systemcfg = &systemcfg_store.data;
EXPORT_SYMBOL(systemcfg);


/* This symbol is provided by the linker - let it fill in the paca
 * field correctly */
extern unsigned long __toc_start;

/* The Paca is an array with one entry per processor.  Each contains an 
 * lppaca, which contains the information shared between the
 * hypervisor and Linux.  Each also contains an ItLpRegSave area which
 * is used by the hypervisor to save registers.
 * On systems with hardware multi-threading, there are two threads
 * per processor.  The Paca array must contain an entry for each thread.
 * The VPD Areas will give a max logical processors = 2 * max physical
 * processors.  The processor VPD array needs one entry per physical
 * processor (not thread).
 */
#ifdef CONFIG_PPC_ISERIES
#define EXTRA_INITS(number, lpq)					    \
	.lppaca_ptr = &paca[number].lppaca,				    \
	.lpqueue_ptr = (lpq),		/* &xItLpQueue, */		    \
	.reg_save_ptr = &paca[number].reg_save,				    \
	.reg_save = {							    \
		.xDesc = 0xd397d9e2,	/* "LpRS" */			    \
		.xSize = sizeof(struct ItLpRegSave)			    \
	},
#else
#define EXTRA_INITS(number, lpq)
#endif

#define PACAINITDATA(number,start,lpq,asrr,asrv)			    \
{									    \
	.lock_token = 0x8000,						    \
	.paca_index = (number),		/* Paca Index */		    \
	.default_decr = 0x00ff0000,	/* Initial Decr */		    \
	.kernel_toc = (unsigned long)(&__toc_start) + 0x8000UL,		    \
	.stab_real = (asrr), 		/* Real pointer to segment table */ \
	.stab_addr = (asrv),		/* Virt pointer to segment table */ \
	.cpu_start = (start),		/* Processor start */		    \
	.hw_cpu_id = 0xffff,						    \
	.lppaca = {							    \
		.desc = 0xd397d781,	/* "LpPa" */			    \
		.size = sizeof(struct lppaca),				    \
		.dyn_proc_status = 2,					    \
		.decr_val = 0x00ff0000,					    \
		.fpregs_in_use = 1,					    \
		.end_of_quantum = 0xfffffffffffffffful,			    \
		.slb_count = 64,					    \
	},								    \
	EXTRA_INITS((number), (lpq))					    \
}

struct paca_struct paca[] = {
#ifdef CONFIG_PPC_ISERIES
	PACAINITDATA( 0, 1, &xItLpQueue, 0, STAB0_VIRT_ADDR),
#else
	PACAINITDATA( 0, 1, NULL, STAB0_PHYS_ADDR, STAB0_VIRT_ADDR),
#endif
#if NR_CPUS > 1
	PACAINITDATA( 1, 0, NULL, 0, 0),
	PACAINITDATA( 2, 0, NULL, 0, 0),
	PACAINITDATA( 3, 0, NULL, 0, 0),
#if NR_CPUS > 4
	PACAINITDATA( 4, 0, NULL, 0, 0),
	PACAINITDATA( 5, 0, NULL, 0, 0),
	PACAINITDATA( 6, 0, NULL, 0, 0),
	PACAINITDATA( 7, 0, NULL, 0, 0),
#if NR_CPUS > 8
	PACAINITDATA( 8, 0, NULL, 0, 0),
	PACAINITDATA( 9, 0, NULL, 0, 0),
	PACAINITDATA(10, 0, NULL, 0, 0),
	PACAINITDATA(11, 0, NULL, 0, 0),
	PACAINITDATA(12, 0, NULL, 0, 0),
	PACAINITDATA(13, 0, NULL, 0, 0),
	PACAINITDATA(14, 0, NULL, 0, 0),
	PACAINITDATA(15, 0, NULL, 0, 0),
	PACAINITDATA(16, 0, NULL, 0, 0),
	PACAINITDATA(17, 0, NULL, 0, 0),
	PACAINITDATA(18, 0, NULL, 0, 0),
	PACAINITDATA(19, 0, NULL, 0, 0),
	PACAINITDATA(20, 0, NULL, 0, 0),
	PACAINITDATA(21, 0, NULL, 0, 0),
	PACAINITDATA(22, 0, NULL, 0, 0),
	PACAINITDATA(23, 0, NULL, 0, 0),
	PACAINITDATA(24, 0, NULL, 0, 0),
	PACAINITDATA(25, 0, NULL, 0, 0),
	PACAINITDATA(26, 0, NULL, 0, 0),
	PACAINITDATA(27, 0, NULL, 0, 0),
	PACAINITDATA(28, 0, NULL, 0, 0),
	PACAINITDATA(29, 0, NULL, 0, 0),
	PACAINITDATA(30, 0, NULL, 0, 0),
	PACAINITDATA(31, 0, NULL, 0, 0),
#if NR_CPUS > 32
	PACAINITDATA(32, 0, NULL, 0, 0),
	PACAINITDATA(33, 0, NULL, 0, 0),
	PACAINITDATA(34, 0, NULL, 0, 0),
	PACAINITDATA(35, 0, NULL, 0, 0),
	PACAINITDATA(36, 0, NULL, 0, 0),
	PACAINITDATA(37, 0, NULL, 0, 0),
	PACAINITDATA(38, 0, NULL, 0, 0),
	PACAINITDATA(39, 0, NULL, 0, 0),
	PACAINITDATA(40, 0, NULL, 0, 0),
	PACAINITDATA(41, 0, NULL, 0, 0),
	PACAINITDATA(42, 0, NULL, 0, 0),
	PACAINITDATA(43, 0, NULL, 0, 0),
	PACAINITDATA(44, 0, NULL, 0, 0),
	PACAINITDATA(45, 0, NULL, 0, 0),
	PACAINITDATA(46, 0, NULL, 0, 0),
	PACAINITDATA(47, 0, NULL, 0, 0),
	PACAINITDATA(48, 0, NULL, 0, 0),
	PACAINITDATA(49, 0, NULL, 0, 0),
	PACAINITDATA(50, 0, NULL, 0, 0),
	PACAINITDATA(51, 0, NULL, 0, 0),
	PACAINITDATA(52, 0, NULL, 0, 0),
	PACAINITDATA(53, 0, NULL, 0, 0),
	PACAINITDATA(54, 0, NULL, 0, 0),
	PACAINITDATA(55, 0, NULL, 0, 0),
	PACAINITDATA(56, 0, NULL, 0, 0),
	PACAINITDATA(57, 0, NULL, 0, 0),
	PACAINITDATA(58, 0, NULL, 0, 0),
	PACAINITDATA(59, 0, NULL, 0, 0),
	PACAINITDATA(60, 0, NULL, 0, 0),
	PACAINITDATA(61, 0, NULL, 0, 0),
	PACAINITDATA(62, 0, NULL, 0, 0),
	PACAINITDATA(63, 0, NULL, 0, 0),
#if NR_CPUS > 64
	PACAINITDATA(64, 0, NULL, 0, 0),
	PACAINITDATA(65, 0, NULL, 0, 0),
	PACAINITDATA(66, 0, NULL, 0, 0),
	PACAINITDATA(67, 0, NULL, 0, 0),
	PACAINITDATA(68, 0, NULL, 0, 0),
	PACAINITDATA(69, 0, NULL, 0, 0),
	PACAINITDATA(70, 0, NULL, 0, 0),
	PACAINITDATA(71, 0, NULL, 0, 0),
	PACAINITDATA(72, 0, NULL, 0, 0),
	PACAINITDATA(73, 0, NULL, 0, 0),
	PACAINITDATA(74, 0, NULL, 0, 0),
	PACAINITDATA(75, 0, NULL, 0, 0),
	PACAINITDATA(76, 0, NULL, 0, 0),
	PACAINITDATA(77, 0, NULL, 0, 0),
	PACAINITDATA(78, 0, NULL, 0, 0),
	PACAINITDATA(79, 0, NULL, 0, 0),
	PACAINITDATA(80, 0, NULL, 0, 0),
	PACAINITDATA(81, 0, NULL, 0, 0),
	PACAINITDATA(82, 0, NULL, 0, 0),
	PACAINITDATA(83, 0, NULL, 0, 0),
	PACAINITDATA(84, 0, NULL, 0, 0),
	PACAINITDATA(85, 0, NULL, 0, 0),
	PACAINITDATA(86, 0, NULL, 0, 0),
	PACAINITDATA(87, 0, NULL, 0, 0),
	PACAINITDATA(88, 0, NULL, 0, 0),
	PACAINITDATA(89, 0, NULL, 0, 0),
	PACAINITDATA(90, 0, NULL, 0, 0),
	PACAINITDATA(91, 0, NULL, 0, 0),
	PACAINITDATA(92, 0, NULL, 0, 0),
	PACAINITDATA(93, 0, NULL, 0, 0),
	PACAINITDATA(94, 0, NULL, 0, 0),
	PACAINITDATA(95, 0, NULL, 0, 0),
	PACAINITDATA(96, 0, NULL, 0, 0),
	PACAINITDATA(97, 0, NULL, 0, 0),
	PACAINITDATA(98, 0, NULL, 0, 0),
	PACAINITDATA(99, 0, NULL, 0, 0),
	PACAINITDATA(100, 0, NULL, 0, 0),
	PACAINITDATA(101, 0, NULL, 0, 0),
	PACAINITDATA(102, 0, NULL, 0, 0),
	PACAINITDATA(103, 0, NULL, 0, 0),
	PACAINITDATA(104, 0, NULL, 0, 0),
	PACAINITDATA(105, 0, NULL, 0, 0),
	PACAINITDATA(106, 0, NULL, 0, 0),
	PACAINITDATA(107, 0, NULL, 0, 0),
	PACAINITDATA(108, 0, NULL, 0, 0),
	PACAINITDATA(109, 0, NULL, 0, 0),
	PACAINITDATA(110, 0, NULL, 0, 0),
	PACAINITDATA(111, 0, NULL, 0, 0),
	PACAINITDATA(112, 0, NULL, 0, 0),
	PACAINITDATA(113, 0, NULL, 0, 0),
	PACAINITDATA(114, 0, NULL, 0, 0),
	PACAINITDATA(115, 0, NULL, 0, 0),
	PACAINITDATA(116, 0, NULL, 0, 0),
	PACAINITDATA(117, 0, NULL, 0, 0),
	PACAINITDATA(118, 0, NULL, 0, 0),
	PACAINITDATA(119, 0, NULL, 0, 0),
	PACAINITDATA(120, 0, NULL, 0, 0),
	PACAINITDATA(121, 0, NULL, 0, 0),
	PACAINITDATA(122, 0, NULL, 0, 0),
	PACAINITDATA(123, 0, NULL, 0, 0),
	PACAINITDATA(124, 0, NULL, 0, 0),
	PACAINITDATA(125, 0, NULL, 0, 0),
	PACAINITDATA(126, 0, NULL, 0, 0),
	PACAINITDATA(127, 0, NULL, 0, 0),
#endif
#endif
#endif
#endif
#endif
};
EXPORT_SYMBOL(paca);