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Diffstat (limited to 'arch/ppc64/kernel/pacaData.c')
| -rw-r--r-- | arch/ppc64/kernel/pacaData.c | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/arch/ppc64/kernel/pacaData.c b/arch/ppc64/kernel/pacaData.c new file mode 100644 index 000000000000..a3e0975c26c1 --- /dev/null +++ b/arch/ppc64/kernel/pacaData.c @@ -0,0 +1,224 @@ +/* + * 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); |