haiku/headers/private/kernel/arch/x86/commpage.h
Axel Dörfler e6dc7903e4 * vm.h no longer includes vm_types.h - only those that actually need access
to the private VM types are including vm_types.h now.
* Removed vm_page, vm_area, vm_cache, and vm_address_space typedefs; it's
  cleaner this way, and the actual types are only used in C++ files now,
  anyway.
* And that caused changes in many files...
* Made commpage.h self-containing.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22329 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-09-27 12:21:33 +00:00

32 lines
750 B
C

/*
* Copyright 2007, Travis Geiselbrecht. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _KERNEL_ARCH_x86_COMMPAGE_H
#define _KERNEL_ARCH_x86_COMMPAGE_H
/*! Some systemwide commpage constants, used in the kernel and libroot */
#ifndef _ASSEMBLER
# include <SupportDefs.h>
#endif
/* be careful what you put here, this file is included from assembly */
#define COMMPAGE_ENTRY_MAGIC 0
#define COMMPAGE_ENTRY_VERSION 1
#define COMMPAGE_ENTRY_SYSCALL 2
#define USER_COMMPAGE_ADDR (0xffff0000)
#define COMMPAGE_SIZE (0x8000)
#define TABLE_ENTRIES 64
#define COMMPAGE_SIGNATURE 'COMM'
#define COMMPAGE_VERSION 1
#ifndef _ASSEMBLER
status_t commpage_init(void);
#endif
#endif /* _KERNEL_ARCH_x86_COMMPAGE_H */