diff options
author | Al Viro <viro@zeniv.linux.org.uk> | 2008-08-17 13:48:37 -0400 |
---|---|---|
committer | H. Peter Anvin <hpa@zytor.com> | 2008-10-22 22:55:19 -0700 |
commit | 8569c9140bd41089f9b6be8837ca421102714a90 (patch) | |
tree | cd289b322b215fe2ca2530aa320febfd99388d7f /arch/um/include/shared/mem_user.h | |
parent | 2515ddc6db8eb49a79f0fe5e67ff09ac7c81eab4 (diff) |
x86, um: take arch/um/include/* out of the way
We can't just plop asm/* into it - userland helpers are built with it
in search path and seeing asm/* show up there suddenly would be a bad
idea.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/um/include/shared/mem_user.h')
-rw-r--r-- | arch/um/include/shared/mem_user.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/arch/um/include/shared/mem_user.h b/arch/um/include/shared/mem_user.h new file mode 100644 index 000000000000..46384acd547b --- /dev/null +++ b/arch/um/include/shared/mem_user.h @@ -0,0 +1,62 @@ +/* + * arch/um/include/mem_user.h + * + * BRIEF MODULE DESCRIPTION + * user side memory interface for support IO memory inside user mode linux + * + * Copyright (C) 2001 RidgeRun, Inc. + * Author: RidgeRun, Inc. + * Greg Lonnon glonnon@ridgerun.com or info@ridgerun.com + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef _MEM_USER_H +#define _MEM_USER_H + +struct iomem_region { + struct iomem_region *next; + char *driver; + int fd; + int size; + unsigned long phys; + unsigned long virt; +}; + +extern struct iomem_region *iomem_regions; +extern int iomem_size; + +#define ROUND_4M(n) ((((unsigned long) (n)) + (1 << 22)) & ~((1 << 22) - 1)) + +extern int init_mem_user(void); +extern void setup_memory(void *entry); +extern unsigned long find_iomem(char *driver, unsigned long *len_out); +extern int init_maps(unsigned long physmem, unsigned long iomem, + unsigned long highmem); +extern unsigned long get_vm(unsigned long len); +extern void setup_physmem(unsigned long start, unsigned long usable, + unsigned long len, unsigned long long highmem); +extern void add_iomem(char *name, int fd, unsigned long size); +extern unsigned long phys_offset(unsigned long phys); +extern void map_memory(unsigned long virt, unsigned long phys, + unsigned long len, int r, int w, int x); + +#endif |