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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 /include/linux/vmalloc.h
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 'include/linux/vmalloc.h')
-rw-r--r--include/linux/vmalloc.h54
1 files changed, 54 insertions, 0 deletions
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
new file mode 100644
index 000000000000..3a358c895188
--- /dev/null
+++ b/include/linux/vmalloc.h
@@ -0,0 +1,54 @@
1#ifndef _LINUX_VMALLOC_H
2#define _LINUX_VMALLOC_H
3
4#include <linux/spinlock.h>
5#include <asm/page.h> /* pgprot_t */
6
7/* bits in vm_struct->flags */
8#define VM_IOREMAP 0x00000001 /* ioremap() and friends */
9#define VM_ALLOC 0x00000002 /* vmalloc() */
10#define VM_MAP 0x00000004 /* vmap()ed pages */
11/* bits [20..32] reserved for arch specific ioremap internals */
12
13struct vm_struct {
14 void *addr;
15 unsigned long size;
16 unsigned long flags;
17 struct page **pages;
18 unsigned int nr_pages;
19 unsigned long phys_addr;
20 struct vm_struct *next;
21};
22
23/*
24 * Highlevel APIs for driver use
25 */
26extern void *vmalloc(unsigned long size);
27extern void *vmalloc_exec(unsigned long size);
28extern void *vmalloc_32(unsigned long size);
29extern void *__vmalloc(unsigned long size, unsigned int __nocast gfp_mask, pgprot_t prot);
30extern void *__vmalloc_area(struct vm_struct *area, unsigned int __nocast gfp_mask, pgprot_t prot);
31extern void vfree(void *addr);
32
33extern void *vmap(struct page **pages, unsigned int count,
34 unsigned long flags, pgprot_t prot);
35extern void vunmap(void *addr);
36
37/*
38 * Lowlevel-APIs (not for driver use!)
39 */
40extern struct vm_struct *get_vm_area(unsigned long size, unsigned long flags);
41extern struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags,
42 unsigned long start, unsigned long end);
43extern struct vm_struct *remove_vm_area(void *addr);
44extern int map_vm_area(struct vm_struct *area, pgprot_t prot,
45 struct page ***pages);
46extern void unmap_vm_area(struct vm_struct *area);
47
48/*
49 * Internals. Dont't use..
50 */
51extern rwlock_t vmlist_lock;
52extern struct vm_struct *vmlist;
53
54#endif /* _LINUX_VMALLOC_H */