/* * 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/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/it_lp_reg_save.h> #include <asm/paca.h> #include <asm/mmu.h> /* This symbol is provided by the linker - let it fill in the paca * field correctly */ extern unsigned long __toc_start; /* * iSeries structure which the hypervisor knows about - this structure * should not cross a page boundary. The vpa_init/register_vpa call * is now known to fail if the lppaca structure crosses a page * boundary. The lppaca is also used on POWER5 pSeries boxes. The * lppaca is 640 bytes long, and cannot readily change since the * hypervisor knows its layout, so a 1kB alignment will suffice to * ensure that it doesn't cross a page boundary. */ struct lppaca lppaca[] = { [0 ... (NR_CPUS-1)] = { .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, .vmxregs_in_use = 0, }, }; /* * 3 persistent SLBs are registered here. The buffer will be zero * initially, hence will all be invaild until we actually write them. */ struct slb_shadow slb_shadow[] __cacheline_aligned = { [0 ... (NR_CPUS-1)] = { .persistent = SLB_NUM_BOLTED, .buffer_length = sizeof(struct slb_shadow), }, }; /* The Paca is an array with one entry per processor. Each contains an * lppaca, which contains the information shared between the * hypervisor and Linux. * 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). */ #define PACA_INIT_COMMON(number) \ .lppaca_ptr = &lppaca[number], \ .lock_token = 0x8000, \ .paca_index = (number), /* Paca Index */ \ .kernel_toc = (unsigned long)(&__toc_start) + 0x8000UL, \ .hw_cpu_id = 0xffff, \ .slb_shadow_ptr = &slb_shadow[number], #ifdef CONFIG_PPC_ISERIES #define PACA_INIT_ISERIES(number) \ .reg_save_ptr = &iseries_reg_save[number], #define PACA_INIT(number) \ { \ PACA_INIT_COMMON(number) \ PACA_INIT_ISERIES(number) \ } #else #define PACA_INIT(number) \ { \ PACA_INIT_COMMON(number) \ } #endif struct paca_struct paca[] = { PACA_INIT(0), #if NR_CPUS > 1 PACA_INIT( 1), PACA_INIT( 2), PACA_INIT( 3), #if NR_CPUS > 4 PACA_INIT( 4), PACA_INIT( 5), PACA_INIT( 6), PACA_INIT( 7), #if NR_CPUS > 8 PACA_INIT( 8), PACA_INIT( 9), PACA_INIT( 10), PACA_INIT( 11), PACA_INIT( 12), PACA_INIT( 13), PACA_INIT( 14), PACA_INIT( 15), PACA_INIT( 16), PACA_INIT( 17), PACA_INIT( 18), PACA_INIT( 19), PACA_INIT( 20), PACA_INIT( 21), PACA_INIT( 22), PACA_INIT( 23), PACA_INIT( 24), PACA_INIT( 25), PACA_INIT( 26), PACA_INIT( 27), PACA_INIT( 28), PACA_INIT( 29), PACA_INIT( 30), PACA_INIT( 31), #if NR_CPUS > 32 PACA_INIT( 32), PACA_INIT( 33), PACA_INIT( 34), PACA_INIT( 35), PACA_INIT( 36), PACA_INIT( 37), PACA_INIT( 38), PACA_INIT( 39), PACA_INIT( 40), PACA_INIT( 41), PACA_INIT( 42), PACA_INIT( 43), PACA_INIT( 44), PACA_INIT( 45), PACA_INIT( 46), PACA_INIT( 47), PACA_INIT( 48), PACA_INIT( 49), PACA_INIT( 50), PACA_INIT( 51), PACA_INIT( 52), PACA_INIT( 53), PACA_INIT( 54), PACA_INIT( 55), PACA_INIT( 56), PACA_INIT( 57), PACA_INIT( 58), PACA_INIT( 59), PACA_INIT( 60), PACA_INIT( 61), PACA_INIT( 62), PACA_INIT( 63), #if NR_CPUS > 64 PACA_INIT( 64), PACA_INIT( 65), PACA_INIT( 66), PACA_INIT( 67), PACA_INIT( 68), PACA_INIT( 69), PACA_INIT( 70), PACA_INIT( 71), PACA_INIT( 72), PACA_INIT( 73), PACA_INIT( 74), PACA_INIT( 75), PACA_INIT( 76), PACA_INIT( 77), PACA_INIT( 78), PACA_INIT( 79), PACA_INIT( 80), PACA_INIT( 81), PACA_INIT( 82), PACA_INIT( 83), PACA_INIT( 84), PACA_INIT( 85), PACA_INIT( 86), PACA_INIT( 87), PACA_INIT( 88), PACA_INIT( 89), PACA_INIT( 90), PACA_INIT( 91), PACA_INIT( 92), PACA_INIT( 93), PACA_INIT( 94), PACA_INIT( 95), PACA_INIT( 96), PACA_INIT( 97), PACA_INIT( 98), PACA_INIT( 99), PACA_INIT(100), PACA_INIT(101), PACA_INIT(102), PACA_INIT(103), PACA_INIT(104), PACA_INIT(105), PACA_INIT(106), PACA_INIT(107), PACA_INIT(108), PACA_INIT(109), PACA_INIT(110), PACA_INIT(111), PACA_INIT(112), PACA_INIT(113), PACA_INIT(114), PACA_INIT(115), PACA_INIT(116), PACA_INIT(117), PACA_INIT(118), PACA_INIT(119), PACA_INIT(120), PACA_INIT(121), PACA_INIT(122), PACA_INIT(123), PACA_INIT(124), PACA_INIT(125), PACA_INIT(126), PACA_INIT(127), #endif #endif #endif #endif #endif }; EXPORT_SYMBOL(paca);