From 63240ba88cd6a220057a0f28e5bf97f5b17ac84b Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Sat, 13 Dec 2008 17:20:28 -0600 Subject: Introduce addr_map library Add a library that helps in translating between virtual and physical addresses. This library can be useful as a simple means to implement map_physmem() and virt_to_phys() for platforms that need functionality beyond the simple 1:1 mapping. Signed-off-by: Kumar Gala --- include/addr_map.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 include/addr_map.h (limited to 'include/addr_map.h') diff --git a/include/addr_map.h b/include/addr_map.h new file mode 100644 index 0000000000..d55f5f64e1 --- /dev/null +++ b/include/addr_map.h @@ -0,0 +1,29 @@ +#ifndef __ADDR_MAP_H +#define __ADDR_MAP_H + +/* + * Copyright 2008 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * 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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include + +extern phys_addr_t addrmap_virt_to_phys(void *vaddr); +extern unsigned long addrmap_phys_to_virt(phys_addr_t paddr); +extern void addrmap_set_entry(unsigned long vaddr, phys_addr_t paddr, + phys_size_t size, int idx); + +#endif -- cgit v1.2.1