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1da177e4 LT |
1 | /* |
2 | * c 2001 PPC 64 Team, IBM Corp | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation; either version | |
7 | * 2 of the License, or (at your option) any later version. | |
8 | */ | |
9 | ||
10 | #include <linux/config.h> | |
11 | #include <linux/types.h> | |
12 | #include <linux/threads.h> | |
13 | #include <linux/module.h> | |
14 | ||
15 | #include <asm/processor.h> | |
16 | #include <asm/ptrace.h> | |
17 | #include <asm/page.h> | |
1da177e4 | 18 | #include <asm/lppaca.h> |
8875ccfb | 19 | #include <asm/iseries/it_lp_queue.h> |
1da177e4 LT |
20 | #include <asm/paca.h> |
21 | ||
1da177e4 LT |
22 | |
23 | /* This symbol is provided by the linker - let it fill in the paca | |
24 | * field correctly */ | |
25 | extern unsigned long __toc_start; | |
26 | ||
8882a4da | 27 | /* The Paca is an array with one entry per processor. Each contains an |
1da177e4 LT |
28 | * lppaca, which contains the information shared between the |
29 | * hypervisor and Linux. Each also contains an ItLpRegSave area which | |
30 | * is used by the hypervisor to save registers. | |
31 | * On systems with hardware multi-threading, there are two threads | |
32 | * per processor. The Paca array must contain an entry for each thread. | |
33 | * The VPD Areas will give a max logical processors = 2 * max physical | |
34 | * processors. The processor VPD array needs one entry per physical | |
35 | * processor (not thread). | |
36 | */ | |
ee48444b | 37 | #define PACA_INIT_COMMON(number, start, asrr, asrv) \ |
1da177e4 LT |
38 | .lock_token = 0x8000, \ |
39 | .paca_index = (number), /* Paca Index */ \ | |
40 | .default_decr = 0x00ff0000, /* Initial Decr */ \ | |
41 | .kernel_toc = (unsigned long)(&__toc_start) + 0x8000UL, \ | |
42 | .stab_real = (asrr), /* Real pointer to segment table */ \ | |
43 | .stab_addr = (asrv), /* Virt pointer to segment table */ \ | |
44 | .cpu_start = (start), /* Processor start */ \ | |
45 | .hw_cpu_id = 0xffff, \ | |
46 | .lppaca = { \ | |
47 | .desc = 0xd397d781, /* "LpPa" */ \ | |
48 | .size = sizeof(struct lppaca), \ | |
49 | .dyn_proc_status = 2, \ | |
50 | .decr_val = 0x00ff0000, \ | |
51 | .fpregs_in_use = 1, \ | |
52 | .end_of_quantum = 0xfffffffffffffffful, \ | |
53 | .slb_count = 64, \ | |
233ccd0d | 54 | .vmxregs_in_use = 0, \ |
1da177e4 | 55 | }, \ |
1da177e4 | 56 | |
1da177e4 | 57 | #ifdef CONFIG_PPC_ISERIES |
ee48444b ME |
58 | #define PACA_INIT_ISERIES(number) \ |
59 | .lppaca_ptr = &paca[number].lppaca, \ | |
60 | .reg_save_ptr = &paca[number].reg_save, \ | |
61 | .reg_save = { \ | |
62 | .xDesc = 0xd397d9e2, /* "LpRS" */ \ | |
63 | .xSize = sizeof(struct ItLpRegSave) \ | |
64 | } | |
65 | ||
66 | #define PACA_INIT(number) \ | |
67 | { \ | |
68 | PACA_INIT_COMMON(number, 0, 0, 0) \ | |
69 | PACA_INIT_ISERIES(number) \ | |
70 | } | |
71 | ||
72 | #define BOOTCPU_PACA_INIT(number) \ | |
73 | { \ | |
c59c464a | 74 | PACA_INIT_COMMON(number, 1, 0, (u64)&initial_stab) \ |
ee48444b ME |
75 | PACA_INIT_ISERIES(number) \ |
76 | } | |
77 | ||
1da177e4 | 78 | #else |
ee48444b ME |
79 | #define PACA_INIT(number) \ |
80 | { \ | |
81 | PACA_INIT_COMMON(number, 0, 0, 0) \ | |
82 | } | |
83 | ||
84 | #define BOOTCPU_PACA_INIT(number) \ | |
85 | { \ | |
c59c464a | 86 | PACA_INIT_COMMON(number, 1, STAB0_PHYS_ADDR, (u64)&initial_stab) \ |
ee48444b | 87 | } |
1da177e4 | 88 | #endif |
ee48444b ME |
89 | |
90 | struct paca_struct paca[] = { | |
91 | BOOTCPU_PACA_INIT(0), | |
1da177e4 | 92 | #if NR_CPUS > 1 |
ee48444b | 93 | PACA_INIT( 1), PACA_INIT( 2), PACA_INIT( 3), |
1da177e4 | 94 | #if NR_CPUS > 4 |
ee48444b | 95 | PACA_INIT( 4), PACA_INIT( 5), PACA_INIT( 6), PACA_INIT( 7), |
1da177e4 | 96 | #if NR_CPUS > 8 |
ee48444b ME |
97 | PACA_INIT( 8), PACA_INIT( 9), PACA_INIT( 10), PACA_INIT( 11), |
98 | PACA_INIT( 12), PACA_INIT( 13), PACA_INIT( 14), PACA_INIT( 15), | |
99 | PACA_INIT( 16), PACA_INIT( 17), PACA_INIT( 18), PACA_INIT( 19), | |
100 | PACA_INIT( 20), PACA_INIT( 21), PACA_INIT( 22), PACA_INIT( 23), | |
101 | PACA_INIT( 24), PACA_INIT( 25), PACA_INIT( 26), PACA_INIT( 27), | |
102 | PACA_INIT( 28), PACA_INIT( 29), PACA_INIT( 30), PACA_INIT( 31), | |
1da177e4 | 103 | #if NR_CPUS > 32 |
ee48444b ME |
104 | PACA_INIT( 32), PACA_INIT( 33), PACA_INIT( 34), PACA_INIT( 35), |
105 | PACA_INIT( 36), PACA_INIT( 37), PACA_INIT( 38), PACA_INIT( 39), | |
106 | PACA_INIT( 40), PACA_INIT( 41), PACA_INIT( 42), PACA_INIT( 43), | |
107 | PACA_INIT( 44), PACA_INIT( 45), PACA_INIT( 46), PACA_INIT( 47), | |
108 | PACA_INIT( 48), PACA_INIT( 49), PACA_INIT( 50), PACA_INIT( 51), | |
109 | PACA_INIT( 52), PACA_INIT( 53), PACA_INIT( 54), PACA_INIT( 55), | |
110 | PACA_INIT( 56), PACA_INIT( 57), PACA_INIT( 58), PACA_INIT( 59), | |
111 | PACA_INIT( 60), PACA_INIT( 61), PACA_INIT( 62), PACA_INIT( 63), | |
1da177e4 | 112 | #if NR_CPUS > 64 |
ee48444b ME |
113 | PACA_INIT( 64), PACA_INIT( 65), PACA_INIT( 66), PACA_INIT( 67), |
114 | PACA_INIT( 68), PACA_INIT( 69), PACA_INIT( 70), PACA_INIT( 71), | |
115 | PACA_INIT( 72), PACA_INIT( 73), PACA_INIT( 74), PACA_INIT( 75), | |
116 | PACA_INIT( 76), PACA_INIT( 77), PACA_INIT( 78), PACA_INIT( 79), | |
117 | PACA_INIT( 80), PACA_INIT( 81), PACA_INIT( 82), PACA_INIT( 83), | |
118 | PACA_INIT( 84), PACA_INIT( 85), PACA_INIT( 86), PACA_INIT( 87), | |
119 | PACA_INIT( 88), PACA_INIT( 89), PACA_INIT( 90), PACA_INIT( 91), | |
120 | PACA_INIT( 92), PACA_INIT( 93), PACA_INIT( 94), PACA_INIT( 95), | |
121 | PACA_INIT( 96), PACA_INIT( 97), PACA_INIT( 98), PACA_INIT( 99), | |
122 | PACA_INIT(100), PACA_INIT(101), PACA_INIT(102), PACA_INIT(103), | |
123 | PACA_INIT(104), PACA_INIT(105), PACA_INIT(106), PACA_INIT(107), | |
124 | PACA_INIT(108), PACA_INIT(109), PACA_INIT(110), PACA_INIT(111), | |
125 | PACA_INIT(112), PACA_INIT(113), PACA_INIT(114), PACA_INIT(115), | |
126 | PACA_INIT(116), PACA_INIT(117), PACA_INIT(118), PACA_INIT(119), | |
127 | PACA_INIT(120), PACA_INIT(121), PACA_INIT(122), PACA_INIT(123), | |
128 | PACA_INIT(124), PACA_INIT(125), PACA_INIT(126), PACA_INIT(127), | |
1da177e4 LT |
129 | #endif |
130 | #endif | |
131 | #endif | |
132 | #endif | |
133 | #endif | |
134 | }; | |
135 | EXPORT_SYMBOL(paca); |