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