patch-2.4.0-test7 linux/drivers/char/zr36120_mem.c
Next file: linux/drivers/char/zr36120_mem.h
Previous file: linux/drivers/char/zr36120_i2c.c
Back to the patch index
Back to the overall index
- Lines: 78
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.4.0-test6/linux/drivers/char/zr36120_mem.c
- Orig date:
Wed Aug 9 19:19:50 2000
diff -u --recursive --new-file v2.4.0-test6/linux/drivers/char/zr36120_mem.c linux/drivers/char/zr36120_mem.c
@@ -1,77 +0,0 @@
-/*
- zr36120_mem.c - Zoran 36120/36125 based framegrabbers
-
- Copyright (C) 1998-1999 Pauline Middelink <middelin@polyware.nl>
-
- This program 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 2 of the License, or
- (at your option) any later version.
-
- 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., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-#include <linux/config.h>
-#include <linux/mm.h>
-#include <linux/pci.h>
-#include <linux/wrapper.h>
-#include <linux/slab.h>
-#include <asm/io.h>
-#ifdef CONFIG_BIGPHYS_AREA
-#include <linux/bigphysarea.h>
-#endif
-
-#include "zr36120.h"
-#include "zr36120_mem.h"
-
-/*******************************/
-/* Memory management functions */
-/*******************************/
-
-void* bmalloc(unsigned long size)
-{
- void* mem;
-#ifdef CONFIG_BIGPHYS_AREA
- mem = bigphysarea_alloc_pages(size/PAGE_SIZE, 1, GFP_KERNEL);
-#else
- /*
- * The following function got a lot of memory at boottime,
- * so we know its always there...
- */
- mem = (void*)__get_free_pages(GFP_USER|GFP_DMA,get_order(size));
-#endif
- if (mem) {
- unsigned long adr = (unsigned long)mem;
- while (size > 0) {
- mem_map_reserve(virt_to_page(phys_to_virt(adr)));
- adr += PAGE_SIZE;
- size -= PAGE_SIZE;
- }
- }
- return mem;
-}
-
-void bfree(void* mem, unsigned long size)
-{
- if (mem) {
- unsigned long adr = (unsigned long)mem;
- unsigned long siz = size;
- while (siz > 0) {
- mem_map_unreserve(virt_to_page(phys_to_virt(adr)));
- adr += PAGE_SIZE;
- siz -= PAGE_SIZE;
- }
-#ifdef CONFIG_BIGPHYS_AREA
- bigphysarea_free_pages(mem);
-#else
- free_pages((unsigned long)mem,get_order(size));
-#endif
- }
-}
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)