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- /*
- * 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
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