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> 18 #include <asm/lppaca.h> 19 #include <asm/iseries/it_lp_queue.h> 20 #include <asm/paca.h> 21 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 27 /* The Paca is an array with one entry per processor. Each contains an 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 */ 37 #define PACA_INIT_COMMON(number, start, asrr, asrv) \ 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, \ 54 .vmxregs_in_use = 0, \ 55 }, \ 56 57 #ifdef CONFIG_PPC_ISERIES 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 { \ 74 PACA_INIT_COMMON(number, 1, 0, (u64)&initial_stab) \ 75 PACA_INIT_ISERIES(number) \ 76 } 77 78 #else 79 #define PACA_INIT(number) \ 80 { \ 81 PACA_INIT_COMMON(number, 0, 0, 0) \ 82 } 83 84 #define BOOTCPU_PACA_INIT(number) \ 85 { \ 86 PACA_INIT_COMMON(number, 1, STAB0_PHYS_ADDR, (u64)&initial_stab) \ 87 } 88 #endif 89 90 struct paca_struct paca[] = { 91 BOOTCPU_PACA_INIT(0), 92 #if NR_CPUS > 1 93 PACA_INIT( 1), PACA_INIT( 2), PACA_INIT( 3), 94 #if NR_CPUS > 4 95 PACA_INIT( 4), PACA_INIT( 5), PACA_INIT( 6), PACA_INIT( 7), 96 #if NR_CPUS > 8 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), 103 #if NR_CPUS > 32 104 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), 112 #if NR_CPUS > 64 113 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), 129 #endif 130 #endif 131 #endif 132 #endif 133 #endif 134 }; 135 EXPORT_SYMBOL(paca); 136