linux/arch/arm/mm/vmregion.h
Russell King 13ccf3ad99 ARM: dma-mapping: split out vmregion code from dma coherent mapping code
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Ungerer <gerg@uclinux.org>
2009-11-24 17:41:34 +00:00

30 lines
722 B
C

#ifndef VMREGION_H
#define VMREGION_H
#include <linux/spinlock.h>
#include <linux/list.h>
struct page;
struct arm_vmregion_head {
spinlock_t vm_lock;
struct list_head vm_list;
unsigned long vm_start;
unsigned long vm_end;
};
struct arm_vmregion {
struct list_head vm_list;
unsigned long vm_start;
unsigned long vm_end;
struct page *vm_pages;
int vm_active;
};
struct arm_vmregion *arm_vmregion_alloc(struct arm_vmregion_head *, size_t, gfp_t);
struct arm_vmregion *arm_vmregion_find(struct arm_vmregion_head *, unsigned long);
struct arm_vmregion *arm_vmregion_find_remove(struct arm_vmregion_head *, unsigned long);
void arm_vmregion_free(struct arm_vmregion_head *, struct arm_vmregion *);
#endif