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62 lines
2.4 KiB
62 lines
2.4 KiB
/* |
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* arch/um/include/mem_user.h |
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* |
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* BRIEF MODULE DESCRIPTION |
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* user side memory interface for support IO memory inside user mode linux |
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* |
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* Copyright (C) 2001 RidgeRun, Inc. |
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* Author: RidgeRun, Inc. |
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* Greg Lonnon [email protected] or [email protected] |
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* |
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* This program is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License as published by the |
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* Free Software Foundation; either version 2 of the License, or (at your |
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* option) any later version. |
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* |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with this program; if not, write to the Free Software Foundation, Inc., |
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* 675 Mass Ave, Cambridge, MA 02139, USA. |
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*/ |
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#ifndef _MEM_USER_H |
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#define _MEM_USER_H |
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struct iomem_region { |
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struct iomem_region *next; |
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char *driver; |
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int fd; |
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int size; |
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unsigned long phys; |
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unsigned long virt; |
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}; |
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extern struct iomem_region *iomem_regions; |
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extern int iomem_size; |
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#define ROUND_4M(n) ((((unsigned long) (n)) + (1 << 22)) & ~((1 << 22) - 1)) |
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extern int init_mem_user(void); |
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extern void setup_memory(void *entry); |
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extern unsigned long find_iomem(char *driver, unsigned long *len_out); |
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extern void mem_total_pages(unsigned long physmem, unsigned long iomem, |
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unsigned long highmem); |
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extern unsigned long get_vm(unsigned long len); |
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extern void setup_physmem(unsigned long start, unsigned long usable, |
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unsigned long len, unsigned long long highmem); |
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extern void add_iomem(char *name, int fd, unsigned long size); |
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extern unsigned long phys_offset(unsigned long phys); |
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extern void map_memory(unsigned long virt, unsigned long phys, |
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unsigned long len, int r, int w, int x); |
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#endif
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