From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- include/asm-cris/processor.h | 79 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 include/asm-cris/processor.h (limited to 'include/asm-cris/processor.h') diff --git a/include/asm-cris/processor.h b/include/asm-cris/processor.h new file mode 100644 index 000000000000..623bdf06d911 --- /dev/null +++ b/include/asm-cris/processor.h @@ -0,0 +1,79 @@ +/* + * include/asm-cris/processor.h + * + * Copyright (C) 2000, 2001 Axis Communications AB + * + * Authors: Bjorn Wesen Initial version + * + */ + +#ifndef __ASM_CRIS_PROCESSOR_H +#define __ASM_CRIS_PROCESSOR_H + +#include +#include +#include +#include +#include + +/* This decides where the kernel will search for a free chunk of vm + * space during mmap's. + */ +#define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3)) + +/* THREAD_SIZE is the size of the task_struct/kernel_stack combo. + * normally, the stack is found by doing something like p + THREAD_SIZE + * in CRIS, a page is 8192 bytes, which seems like a sane size + */ + +#define THREAD_SIZE PAGE_SIZE +#define KERNEL_STACK_SIZE PAGE_SIZE + +/* + * At user->kernel entry, the pt_regs struct is stacked on the top of the kernel-stack. + * This macro allows us to find those regs for a task. + * Notice that subsequent pt_regs stackings, like recursive interrupts occurring while + * we're in the kernel, won't affect this - only the first user->kernel transition + * registers are reached by this. + */ + +#define user_regs(thread_info) (((struct pt_regs *)((unsigned long)(thread_info) + THREAD_SIZE)) - 1) + +/* + * Dito but for the currently running task + */ + +#define current_regs() user_regs(current->thread_info) + +extern inline void prepare_to_copy(struct task_struct *tsk) +{ +} + +extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); + +unsigned long get_wchan(struct task_struct *p); + +#define KSTK_ESP(tsk) ((tsk) == current ? rdusp() : (tsk)->thread.usp) + +/* + * Free current thread data structures etc.. + */ + +extern inline void exit_thread(void) +{ + /* Nothing needs to be done. */ +} + +extern unsigned long thread_saved_pc(struct task_struct *tsk); + +/* Free all resources held by a thread. */ +extern inline void release_thread(struct task_struct *dead_task) +{ + /* Nothing needs to be done. */ +} + +#define init_stack (init_thread_union.stack) + +#define cpu_relax() barrier() + +#endif /* __ASM_CRIS_PROCESSOR_H */ -- cgit v1.2.1