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/*
* linux/include/asm-arm/domain.h
*
* Copyright (C) 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.
*/
#ifndef __ASM_PROC_DOMAIN_H
#define __ASM_PROC_DOMAIN_H
/*
* Domain numbers
*
* DOMAIN_IO - domain 2 includes all IO only
* DOMAIN_USER - domain 1 includes all user memory only
* DOMAIN_KERNEL - domain 0 includes all kernel memory only
*/
#define DOMAIN_KERNEL 0
#define DOMAIN_TABLE 0
#define DOMAIN_USER 1
#define DOMAIN_IO 2
/*
* Domain types
*/
#define DOMAIN_NOACCESS 0
#define DOMAIN_CLIENT 1
#define DOMAIN_MANAGER 3
#define domain_val(dom,type) ((type) << (2*(dom)))
#ifndef __ASSEMBLY__
#define set_domain(x) \
do { \
__asm__ __volatile__( \
"mcr p15, 0, %0, c3, c0 @ set domain" \
: : "r" (x)); \
} while (0)
#define modify_domain(dom,type) \
do { \
struct thread_info *thread = current_thread_info(); \
unsigned int domain = thread->cpu_domain; \
domain &= ~domain_val(dom, DOMAIN_MANAGER); \
thread->cpu_domain = domain | domain_val(dom, type); \
set_domain(thread->cpu_domain); \
} while (0)
#endif
#endif /* !__ASSEMBLY__ */
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