From 556dcee7b829e5c350c3ffdbdb87a8b15aa3c5d3 Mon Sep 17 00:00:00 2001 From: Jesper Nilsson Date: Tue, 21 Oct 2008 17:45:58 +0200 Subject: [CRIS] Move header files from include to arch/cris/include. Change all users of header files to correct path. Remove some unneeded headers for arch-v32. Signed-off-by: Jesper Nilsson --- arch/cris/include/asm/processor.h | 75 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 arch/cris/include/asm/processor.h (limited to 'arch/cris/include/asm/processor.h') diff --git a/arch/cris/include/asm/processor.h b/arch/cris/include/asm/processor.h new file mode 100644 index 00000000000..3f7248f7a1c --- /dev/null +++ b/arch/cris/include/asm/processor.h @@ -0,0 +1,75 @@ +/* + * 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 + +struct task_struct; + +#define STACK_TOP TASK_SIZE +#define STACK_TOP_MAX STACK_TOP + +/* 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 task_pt_regs(task) user_regs(task_thread_info(task)) +#define current_regs() task_pt_regs(current) + +static 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) + +extern unsigned long thread_saved_pc(struct task_struct *tsk); + +/* Free all resources held by a thread. */ +static 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 v1.2.3-70-g09d2