linux/arch/arm/include/asm/dma-iommu.h
Hiroshi Doyu 6fe3675803 ARM: dma-mapping: Add arm_iommu_detach_device()
A counter part of arm_iommu_attach_device().

Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2013-02-25 15:30:41 +01:00

37 lines
779 B
C

#ifndef ASMARM_DMA_IOMMU_H
#define ASMARM_DMA_IOMMU_H
#ifdef __KERNEL__
#include <linux/mm_types.h>
#include <linux/scatterlist.h>
#include <linux/dma-debug.h>
#include <linux/kmemcheck.h>
#include <linux/kref.h>
struct dma_iommu_mapping {
/* iommu specific data */
struct iommu_domain *domain;
void *bitmap;
size_t bits;
unsigned int order;
dma_addr_t base;
spinlock_t lock;
struct kref kref;
};
struct dma_iommu_mapping *
arm_iommu_create_mapping(struct bus_type *bus, dma_addr_t base, size_t size,
int order);
void arm_iommu_release_mapping(struct dma_iommu_mapping *mapping);
int arm_iommu_attach_device(struct device *dev,
struct dma_iommu_mapping *mapping);
void arm_iommu_detach_device(struct device *dev);
#endif /* __KERNEL__ */
#endif