diff options
Diffstat (limited to 'arch/mn10300/kernel/process.c')
| -rw-r--r-- | arch/mn10300/kernel/process.c | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c deleted file mode 100644 index 7c475fd99c46..000000000000 --- a/arch/mn10300/kernel/process.c +++ /dev/null @@ -1,175 +0,0 @@ -/* MN10300 Process handling code - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/sched/debug.h> -#include <linux/sched/task.h> -#include <linux/sched/task_stack.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/smp.h> -#include <linux/stddef.h> -#include <linux/unistd.h> -#include <linux/ptrace.h> -#include <linux/user.h> -#include <linux/interrupt.h> -#include <linux/delay.h> -#include <linux/reboot.h> -#include <linux/percpu.h> -#include <linux/err.h> -#include <linux/fs.h> -#include <linux/slab.h> -#include <linux/rcupdate.h> -#include <linux/uaccess.h> -#include <asm/pgtable.h> -#include <asm/io.h> -#include <asm/processor.h> -#include <asm/mmu_context.h> -#include <asm/fpu.h> -#include <asm/reset-regs.h> -#include <asm/gdb-stub.h> -#include "internal.h" - -/* - * power off function, if any - */ -void (*pm_power_off)(void); -EXPORT_SYMBOL(pm_power_off); - -/* - * On SMP it's slightly faster (but much more power-consuming!) - * to poll the ->work.need_resched flag instead of waiting for the - * cross-CPU IPI to arrive. Use this option with caution. - * - * tglx: No idea why this depends on HOTPLUG_CPU !?! - */ -#if !defined(CONFIG_SMP) || defined(CONFIG_HOTPLUG_CPU) -void arch_cpu_idle(void) -{ - safe_halt(); -} -#endif - -void machine_restart(char *cmd) -{ -#ifdef CONFIG_KERNEL_DEBUGGER - gdbstub_exit(0); -#endif - -#ifdef mn10300_unit_hard_reset - mn10300_unit_hard_reset(); -#else - mn10300_proc_hard_reset(); -#endif -} - -void machine_halt(void) -{ -#ifdef CONFIG_KERNEL_DEBUGGER - gdbstub_exit(0); -#endif -} - -void machine_power_off(void) -{ -#ifdef CONFIG_KERNEL_DEBUGGER - gdbstub_exit(0); -#endif -} - -void show_regs(struct pt_regs *regs) -{ - show_regs_print_info(KERN_DEFAULT); -} - -/* - * free current thread data structures etc.. - */ -void exit_thread(struct task_struct *tsk) -{ - exit_fpu(tsk); -} - -void flush_thread(void) -{ - flush_fpu(); -} - -void release_thread(struct task_struct *dead_task) -{ -} - -/* - * this gets called so that we can store lazy state into memory and copy the - * current task into the new thread. - */ -int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) -{ - unlazy_fpu(src); - *dst = *src; - return 0; -} - -/* - * set up the kernel stack for a new thread and copy arch-specific thread - * control information - */ -int copy_thread(unsigned long clone_flags, - unsigned long c_usp, unsigned long ustk_size, - struct task_struct *p) -{ - struct thread_info *ti = task_thread_info(p); - struct pt_regs *c_regs; - unsigned long c_ksp; - - c_ksp = (unsigned long) task_stack_page(p) + THREAD_SIZE; - - /* allocate the userspace exception frame and set it up */ - c_ksp -= sizeof(struct pt_regs); - c_regs = (struct pt_regs *) c_ksp; - c_ksp -= 12; /* allocate function call ABI slack */ - - /* set up things up so the scheduler can start the new task */ - p->thread.uregs = c_regs; - ti->frame = c_regs; - p->thread.a3 = (unsigned long) c_regs; - p->thread.sp = c_ksp; - p->thread.wchan = p->thread.pc; - p->thread.usp = c_usp; - - if (unlikely(p->flags & PF_KTHREAD)) { - memset(c_regs, 0, sizeof(struct pt_regs)); - c_regs->a0 = c_usp; /* function */ - c_regs->d0 = ustk_size; /* argument */ - local_save_flags(c_regs->epsw); - c_regs->epsw |= EPSW_IE | EPSW_IM_7; - p->thread.pc = (unsigned long) ret_from_kernel_thread; - return 0; - } - *c_regs = *current_pt_regs(); - if (c_usp) - c_regs->sp = c_usp; - c_regs->epsw &= ~EPSW_FE; /* my FPU */ - - /* the new TLS pointer is passed in as arg #5 to sys_clone() */ - if (clone_flags & CLONE_SETTLS) - c_regs->e2 = current_frame()->d3; - - p->thread.pc = (unsigned long) ret_from_fork; - - return 0; -} - -unsigned long get_wchan(struct task_struct *p) -{ - return p->thread.wchan; -} |