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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/m32r/mm/ioremap-nommu.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/m32r/mm/ioremap-nommu.c')
-rw-r--r--arch/m32r/mm/ioremap-nommu.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/m32r/mm/ioremap-nommu.c b/arch/m32r/mm/ioremap-nommu.c
new file mode 100644
index 000000000000..2759f2d48384
--- /dev/null
+++ b/arch/m32r/mm/ioremap-nommu.c
@@ -0,0 +1,52 @@
1/*
2 * linux/arch/m32r/mm/ioremap-nommu.c
3 *
4 * Copyright (c) 2001, 2002 Hiroyuki Kondo
5 *
6 * Taken from mips version.
7 * (C) Copyright 1995 1996 Linus Torvalds
8 * (C) Copyright 2001 Ralf Baechle
9 */
10
11/*
12 * This file is subject to the terms and conditions of the GNU General Public
13 * License. See the file "COPYING" in the main directory of this archive
14 * for more details.
15 *
16 */
17
18#include <linux/module.h>
19#include <asm/addrspace.h>
20#include <asm/byteorder.h>
21
22#include <linux/vmalloc.h>
23#include <asm/io.h>
24#include <asm/pgalloc.h>
25#include <asm/cacheflush.h>
26#include <asm/tlbflush.h>
27
28
29/*
30 * Remap an arbitrary physical address space into the kernel virtual
31 * address space. Needed when the kernel wants to access high addresses
32 * directly.
33 *
34 * NOTE! We need to allow non-page-aligned mappings too: we will obviously
35 * have to convert them into an offset in a page-aligned mapping, but the
36 * caller shouldn't need to know that small detail.
37 */
38
39#define IS_LOW512(addr) (!((unsigned long)(addr) & ~0x1fffffffUL))
40
41void __iomem *
42__ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags)
43{
44 return (void *)phys_addr;
45}
46
47#define IS_KSEG1(addr) (((unsigned long)(addr) & ~0x1fffffffUL) == KSEG1)
48
49void iounmap(volatile void __iomem *addr)
50{
51}
52