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#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/dma-mapping.h>
#include <linux/intel-iommu.h>
void *
vtd_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
gfp_t flags)
{
return intel_alloc_coherent(dev, size, dma_handle, flags);
}
EXPORT_SYMBOL_GPL(vtd_alloc_coherent);
void
vtd_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle)
{
intel_free_coherent(dev, size, vaddr, dma_handle);
}
EXPORT_SYMBOL_GPL(vtd_free_coherent);
dma_addr_t
vtd_map_single_attrs(struct device *dev, void *addr, size_t size,
int dir, struct dma_attrs *attrs)
{
return intel_map_single(dev, (phys_addr_t)addr, size, dir);
}
EXPORT_SYMBOL_GPL(vtd_map_single_attrs);
void
vtd_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t size,
int dir, struct dma_attrs *attrs)
{
intel_unmap_single(dev, iova, size, dir);
}
EXPORT_SYMBOL_GPL(vtd_unmap_single_attrs);
int
vtd_map_sg_attrs(struct device *dev, struct scatterlist *sglist, int nents,
int dir, struct dma_attrs *attrs)
{
return intel_map_sg(dev, sglist, nents, dir);
}
EXPORT_SYMBOL_GPL(vtd_map_sg_attrs);
void
vtd_unmap_sg_attrs(struct device *dev, struct scatterlist *sglist,
int nents, int dir, struct dma_attrs *attrs)
{
intel_unmap_sg(dev, sglist, nents, dir);
}
EXPORT_SYMBOL_GPL(vtd_unmap_sg_attrs);
int
vtd_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
{
return 0;
}
EXPORT_SYMBOL_GPL(vtd_dma_mapping_error);
extern int iommu_dma_supported(struct device *dev, u64 mask);
struct dma_mapping_ops vtd_dma_ops = {
.alloc_coherent = vtd_alloc_coherent,
.free_coherent = vtd_free_coherent,
.map_single_attrs = vtd_map_single_attrs,
.unmap_single_attrs = vtd_unmap_single_attrs,
.map_sg_attrs = vtd_map_sg_attrs,
.unmap_sg_attrs = vtd_unmap_sg_attrs,
.sync_single_for_cpu = machvec_dma_sync_single,
.sync_sg_for_cpu = machvec_dma_sync_sg,
.sync_single_for_device = machvec_dma_sync_single,
.sync_sg_for_device = machvec_dma_sync_sg,
.dma_supported_op = iommu_dma_supported,
.mapping_error = vtd_dma_mapping_error,
};
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