Files
openairinterface5g/openair1/ARCH/COMMON/reserve_mem.c
T
ghaddab 56c3197b09 License Corrected
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@5713 818b1a75-f10b-46b9-bf7c-635c3b92a50f
2014-08-13 16:22:56 +00:00

70 lines
2.2 KiB
C

/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface 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 3 of the License, or
(at your option) any later version.
OpenAirInterface 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
#include <asm/io.h>
#include <asm/bitops.h>
#include <asm/uaccess.h>
#include <asm/segment.h>
#include <asm/page.h>
#include <asm/delay.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/mm.h>
#include <linux/mman.h>
#include <linux/slab.h>
//#include <linux/config.h>
#include <linux/version.h>
#include <linux/kernel.h>
#include <linux/fs.h>
#include <linux/errno.h>
#ifdef KERNEL2_6
//#include <linux/config.h>
#include <linux/slab.h>
#endif
// Function to set reserved bit on pages to be mapped to user-space by mmap
void reserve_mem(unsigned long buffer,unsigned long size) {
unsigned long virt_addr;
// printk("[openair][DEVICE] Reserving %p, size %d bytes\n",buffer,size);
for (virt_addr=(unsigned long)buffer;
virt_addr<(unsigned long)buffer+size;
virt_addr+=PAGE_SIZE)
{
/* reserve all pages to make them remapable */
SetPageReserved(virt_to_page(virt_addr));
}
}