cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

mem_user.h (2238B)

      1/*
      2 * arch/um/include/mem_user.h
      3 *
      4 * BRIEF MODULE DESCRIPTION
      5 * user side memory interface for support IO memory inside user mode linux
      6 *
      7 * Copyright (C) 2001 RidgeRun, Inc.
      8 * Author: RidgeRun, Inc.
      9 *         Greg Lonnon glonnon@ridgerun.com or info@ridgerun.com
     10 *
     11 *  This program is free software; you can redistribute  it and/or modify it
     12 *  under  the terms of  the GNU General  Public License as published by the
     13 *  Free Software Foundation;  either version 2 of the  License, or (at your
     14 *  option) any later version.
     15 *
     16 *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
     17 *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
     18 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
     19 *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
     20 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21 *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
     22 *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     23 *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
     24 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26 *
     27 *  You should have received a copy of the  GNU General Public License along
     28 *  with this program; if not, write  to the Free Software Foundation, Inc.,
     29 *  675 Mass Ave, Cambridge, MA 02139, USA.
     30 */
     31
     32#ifndef _MEM_USER_H
     33#define _MEM_USER_H
     34
     35struct iomem_region {
     36	struct iomem_region *next;
     37	char *driver;
     38	int fd;
     39	int size;
     40	unsigned long phys;
     41	unsigned long virt;
     42};
     43
     44extern struct iomem_region *iomem_regions;
     45extern int iomem_size;
     46
     47#define ROUND_4M(n) ((((unsigned long) (n)) + (1 << 22)) & ~((1 << 22) - 1))
     48
     49extern unsigned long find_iomem(char *driver, unsigned long *len_out);
     50extern void mem_total_pages(unsigned long physmem, unsigned long iomem,
     51		     unsigned long highmem);
     52extern void setup_physmem(unsigned long start, unsigned long usable,
     53			  unsigned long len, unsigned long long highmem);
     54extern void map_memory(unsigned long virt, unsigned long phys,
     55		       unsigned long len, int r, int w, int x);
     56
     57#endif