mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-04 10:30:32 +00:00
75 lines
2.2 KiB
C
75 lines
2.2 KiB
C
|
/*
|
||
|
|
* linux/include/asm-arm/proc-armv/processor.h
|
||
|
|
*
|
||
|
|
* Copyright (C) 1996-1999 Russell King.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License version 2 as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* Changelog:
|
||
|
|
* 20-09-1996 RMK Created
|
||
|
|
* 26-09-1996 RMK Added 'EXTRA_THREAD_STRUCT*'
|
||
|
|
* 28-09-1996 RMK Moved start_thread into the processor dependencies
|
||
|
|
* 09-09-1998 PJB Delete redundant `wp_works_ok'
|
||
|
|
* 30-05-1999 PJB Save sl across context switches
|
||
|
|
* 31-07-1999 RMK Added 'domain' stuff
|
||
|
|
*/
|
||
|
|
#ifndef __ASM_PROC_PROCESSOR_H
|
||
|
|
#define __ASM_PROC_PROCESSOR_H
|
||
|
|
|
||
|
|
#include <asm/proc/domain.h>
|
||
|
|
|
||
|
|
#define KERNEL_STACK_SIZE PAGE_SIZE
|
||
|
|
|
||
|
|
struct context_save_struct {
|
||
|
|
unsigned long cpsr;
|
||
|
|
unsigned long r4;
|
||
|
|
unsigned long r5;
|
||
|
|
unsigned long r6;
|
||
|
|
unsigned long r7;
|
||
|
|
unsigned long r8;
|
||
|
|
unsigned long r9;
|
||
|
|
unsigned long sl;
|
||
|
|
unsigned long fp;
|
||
|
|
unsigned long pc;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define INIT_CSS (struct context_save_struct){ SVC_MODE, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
|
||
|
|
|
||
|
|
#define EXTRA_THREAD_STRUCT \
|
||
|
|
unsigned int domain;
|
||
|
|
|
||
|
|
#define EXTRA_THREAD_STRUCT_INIT \
|
||
|
|
domain: domain_val(DOMAIN_USER, DOMAIN_CLIENT) | \
|
||
|
|
domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \
|
||
|
|
domain_val(DOMAIN_IO, DOMAIN_CLIENT)
|
||
|
|
|
||
|
|
#define start_thread(regs,pc,sp) \
|
||
|
|
({ \
|
||
|
|
unsigned long *stack = (unsigned long *)sp; \
|
||
|
|
set_fs(USER_DS); \
|
||
|
|
memzero(regs->uregs, sizeof(regs->uregs)); \
|
||
|
|
if (current->personality & ADDR_LIMIT_32BIT) \
|
||
|
|
regs->ARM_cpsr = USR_MODE; \
|
||
|
|
else \
|
||
|
|
regs->ARM_cpsr = USR26_MODE; \
|
||
|
|
regs->ARM_pc = pc; /* pc */ \
|
||
|
|
regs->ARM_sp = sp; /* sp */ \
|
||
|
|
regs->ARM_r2 = stack[2]; /* r2 (envp) */ \
|
||
|
|
regs->ARM_r1 = stack[1]; /* r1 (argv) */ \
|
||
|
|
regs->ARM_r0 = stack[0]; /* r0 (argc) */ \
|
||
|
|
})
|
||
|
|
|
||
|
|
#define KSTK_EIP(tsk) (((unsigned long *)(4096+(unsigned long)(tsk)))[1019])
|
||
|
|
#define KSTK_ESP(tsk) (((unsigned long *)(4096+(unsigned long)(tsk)))[1017])
|
||
|
|
|
||
|
|
/* Allocation and freeing of basic task resources. */
|
||
|
|
/*
|
||
|
|
* NOTE! The task struct and the stack go together
|
||
|
|
*/
|
||
|
|
#define ll_alloc_task_struct() ((struct task_struct *) __get_free_pages(GFP_KERNEL,1))
|
||
|
|
#define ll_free_task_struct(p) free_pages((unsigned long)(p),1)
|
||
|
|
|
||
|
|
#endif
|