Linux Kernel  3.7.1
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kmap.c
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1 /*
2  * linux/arch/h8300/mm/kmap.c
3  *
4  * Based on
5  * linux/arch/m68knommu/mm/kmap.c
6  *
7  * Copyright (C) 2000 Lineo, <[email protected]>
8  * Copyright (C) 2000-2002 David McCullough <[email protected]>
9  */
10 
11 #include <linux/mm.h>
12 #include <linux/kernel.h>
13 #include <linux/string.h>
14 #include <linux/types.h>
15 #include <linux/vmalloc.h>
16 
17 #include <asm/setup.h>
18 #include <asm/segment.h>
19 #include <asm/page.h>
20 #include <asm/pgalloc.h>
21 #include <asm/io.h>
22 
23 #undef DEBUG
24 
25 #define VIRT_OFFSET (0x01000000)
26 
27 /*
28  * Map some physical address range into the kernel address space.
29  */
30 void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
31 {
32  return (void *)(physaddr + VIRT_OFFSET);
33 }
34 
35 /*
36  * Unmap a ioremap()ed region again.
37  */
38 void iounmap(void *addr)
39 {
40 }
41 
42 /*
43  * __iounmap unmaps nearly everything, so be careful
44  * it doesn't free currently pointer/page tables anymore but it
45  * wans't used anyway and might be added later.
46  */
47 void __iounmap(void *addr, unsigned long size)
48 {
49 }
50 
51 /*
52  * Set new cache mode for some kernel address space.
53  * The caller must push data for that range itself, if such data may already
54  * be in the cache.
55  */
56 void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
57 {
58 }