diff options
Diffstat (limited to 'arch/parisc')
| -rw-r--r-- | arch/parisc/Kconfig | 1 | ||||
| -rw-r--r-- | arch/parisc/Makefile | 2 | ||||
| -rw-r--r-- | arch/parisc/kernel/Makefile | 2 | ||||
| -rw-r--r-- | arch/parisc/kernel/init_task.c | 70 | ||||
| -rw-r--r-- | arch/parisc/kernel/smp.c | 25 | ||||
| -rw-r--r-- | arch/parisc/mm/init.c | 12 |
6 files changed, 18 insertions, 94 deletions
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index 242a1b7ac759..ddb8b24b823d 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -17,6 +17,7 @@ config PARISC select GENERIC_PCI_IOMAP select IRQ_PER_CPU select ARCH_HAVE_NMI_SAFE_CMPXCHG + select GENERIC_SMP_IDLE_THREAD help The PA-RISC microprocessor is designed by Hewlett-Packard and used diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile index 19ab7b2ea1cd..dbc3850b1d0d 100644 --- a/arch/parisc/Makefile +++ b/arch/parisc/Makefile @@ -75,7 +75,7 @@ head-y := arch/parisc/kernel/head.o KBUILD_CFLAGS += $(cflags-y) -kernel-y := mm/ kernel/ math-emu/ kernel/init_task.o +kernel-y := mm/ kernel/ math-emu/ kernel-$(CONFIG_HPUX) += hpux/ core-y += $(addprefix arch/parisc/, $(kernel-y)) diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile index 67db0722e6ca..66ee3f12df58 100644 --- a/arch/parisc/kernel/Makefile +++ b/arch/parisc/kernel/Makefile @@ -2,7 +2,7 @@ # Makefile for arch/parisc/kernel # -extra-y := init_task.o head.o vmlinux.lds +extra-y := head.o vmlinux.lds obj-y := cache.o pacache.o setup.o traps.o time.o irq.o \ pa7300lc.o syscall.o entry.o sys_parisc.o firmware.o \ diff --git a/arch/parisc/kernel/init_task.c b/arch/parisc/kernel/init_task.c deleted file mode 100644 index 4a91e433416f..000000000000 --- a/arch/parisc/kernel/init_task.c +++ /dev/null @@ -1,70 +0,0 @@ -/* - * Static declaration of "init" task data structure. - * - * Copyright (C) 2000 Paul Bame <bame at parisc-linux.org> - * Copyright (C) 2000-2001 John Marvin <jsm at parisc-linux.org> - * Copyright (C) 2001 Helge Deller <deller @ parisc-linux.org> - * Copyright (C) 2002 Matthew Wilcox <willy with parisc-linux.org> - * - * - * 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. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <linux/mm.h> -#include <linux/fs.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/init.h> -#include <linux/init_task.h> -#include <linux/mqueue.h> - -#include <asm/uaccess.h> -#include <asm/pgtable.h> -#include <asm/pgalloc.h> - -static struct signal_struct init_signals = INIT_SIGNALS(init_signals); -static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); -/* - * Initial task structure. - * - * We need to make sure that this is 16384-byte aligned due to the - * way process stacks are handled. This is done by having a special - * "init_task" linker map entry.. - */ -union thread_union init_thread_union __init_task_data - __attribute__((aligned(128))) = - { INIT_THREAD_INFO(init_task) }; - -#if PT_NLEVELS == 3 -/* NOTE: This layout exactly conforms to the hybrid L2/L3 page table layout - * with the first pmd adjacent to the pgd and below it. gcc doesn't actually - * guarantee that global objects will be laid out in memory in the same order - * as the order of declaration, so put these in different sections and use - * the linker script to order them. */ -pmd_t pmd0[PTRS_PER_PMD] __attribute__ ((__section__ (".data..vm0.pmd"), aligned(PAGE_SIZE))); -#endif - -pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__ ((__section__ (".data..vm0.pgd"), aligned(PAGE_SIZE))); -pte_t pg0[PT_INITIAL * PTRS_PER_PTE] __attribute__ ((__section__ (".data..vm0.pte"), aligned(PAGE_SIZE))); - -/* - * Initial task structure. - * - * All other task structs will be allocated on slabs in fork.c - */ -EXPORT_SYMBOL(init_task); - -__asm__(".data"); -struct task_struct init_task = INIT_TASK(init_task); diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c index 4dc7b7942b4c..a47828d31fe6 100644 --- a/arch/parisc/kernel/smp.c +++ b/arch/parisc/kernel/smp.c @@ -340,26 +340,11 @@ void __init smp_callin(void) /* * Bring one cpu online. */ -int __cpuinit smp_boot_one_cpu(int cpuid) +int __cpuinit smp_boot_one_cpu(int cpuid, struct task_struct *idle) { const struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpuid); - struct task_struct *idle; long timeout; - /* - * Create an idle task for this CPU. Note the address wed* give - * to kernel_thread is irrelevant -- it's going to start - * where OS_BOOT_RENDEVZ vector in SAL says to start. But - * this gets all the other task-y sort of data structures set - * up like we wish. We need to pull the just created idle task - * off the run queue and stuff it into the init_tasks[] array. - * Sheesh . . . - */ - - idle = fork_idle(cpuid); - if (IS_ERR(idle)) - panic("SMP: fork failed for CPU:%d", cpuid); - task_thread_info(idle)->cpu = cpuid; /* Let _start know what logical CPU we're booting @@ -403,10 +388,6 @@ int __cpuinit smp_boot_one_cpu(int cpuid) udelay(100); barrier(); } - - put_task_struct(idle); - idle = NULL; - printk(KERN_CRIT "SMP: CPU:%d is stuck.\n", cpuid); return -1; @@ -455,10 +436,10 @@ void smp_cpus_done(unsigned int cpu_max) } -int __cpuinit __cpu_up(unsigned int cpu) +int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle) { if (cpu != 0 && cpu < parisc_max_cpus) - smp_boot_one_cpu(cpu); + smp_boot_one_cpu(cpu, tidle); return cpu_online(cpu) ? 0 : -ENOSYS; } diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index 82f364e209fc..3ac462de53a4 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -33,6 +33,18 @@ extern int data_start; +#if PT_NLEVELS == 3 +/* NOTE: This layout exactly conforms to the hybrid L2/L3 page table layout + * with the first pmd adjacent to the pgd and below it. gcc doesn't actually + * guarantee that global objects will be laid out in memory in the same order + * as the order of declaration, so put these in different sections and use + * the linker script to order them. */ +pmd_t pmd0[PTRS_PER_PMD] __attribute__ ((__section__ (".data..vm0.pmd"), aligned(PAGE_SIZE))); +#endif + +pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__ ((__section__ (".data..vm0.pgd"), aligned(PAGE_SIZE))); +pte_t pg0[PT_INITIAL * PTRS_PER_PTE] __attribute__ ((__section__ (".data..vm0.pte"), aligned(PAGE_SIZE))); + #ifdef CONFIG_DISCONTIGMEM struct node_map_data node_data[MAX_NUMNODES] __read_mostly; unsigned char pfnnid_map[PFNNID_MAP_MAX] __read_mostly; |