#include <linux/spinlock.h>
#include <asm/page.h> /* pgprot_t */
+struct vm_area_struct;
+
/* bits in vm_struct->flags */
#define VM_IOREMAP 0x00000001 /* ioremap() and friends */
#define VM_ALLOC 0x00000002 /* vmalloc() */
#define VM_MAP 0x00000004 /* vmap()ed pages */
+#define VM_USERMAP 0x00000008 /* suitable for remap_vmalloc_range */
+#define VM_VPAGES 0x00000010 /* buffer for pages was vmalloc'ed */
/* bits [20..32] reserved for arch specific ioremap internals */
/*
#endif
struct vm_struct {
+ /* keep next,addr,size together to speedup lookups */
+ struct vm_struct *next;
void *addr;
unsigned long size;
unsigned long flags;
struct page **pages;
unsigned int nr_pages;
unsigned long phys_addr;
- struct vm_struct *next;
};
/*
* Highlevel APIs for driver use
*/
extern void *vmalloc(unsigned long size);
+extern void *vmalloc_user(unsigned long size);
extern void *vmalloc_node(unsigned long size, int node);
extern void *vmalloc_exec(unsigned long size);
extern void *vmalloc_32(unsigned long size);
+extern void *vmalloc_32_user(unsigned long size);
extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot);
extern void *__vmalloc_area(struct vm_struct *area, gfp_t gfp_mask,
pgprot_t prot);
-extern void *__vmalloc_node(unsigned long size, gfp_t gfp_mask,
- pgprot_t prot, int node);
extern void vfree(void *addr);
extern void *vmap(struct page **pages, unsigned int count,
unsigned long flags, pgprot_t prot);
extern void vunmap(void *addr);
+
+extern int remap_vmalloc_range(struct vm_area_struct *vma, void *addr,
+ unsigned long pgoff);
/*
* Lowlevel-APIs (not for driver use!)
extern struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags,
unsigned long start, unsigned long end);
extern struct vm_struct *get_vm_area_node(unsigned long size,
- unsigned long flags, int node);
+ unsigned long flags, int node,
+ gfp_t gfp_mask);
extern struct vm_struct *remove_vm_area(void *addr);
-extern struct vm_struct *__remove_vm_area(void *addr);
extern int map_vm_area(struct vm_struct *area, pgprot_t prot,
struct page ***pages);
extern void unmap_vm_area(struct vm_struct *area);