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VT-d: adapt domain map and unmap functions for IOMMU API 

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Joerg Roedel 2008-12-03 15:04:09 +01:00
parent 4c5478c94e
commit dde57a210d
2 changed files with 20 additions and 17 deletions
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33
drivers/pci/intel-iommu.c
View File

@ -3047,20 +3047,28 @@ static void intel_iommu_detach_device(struct iommu_domain *domain,
vm_domain_remove_one_dev_info(dmar_domain, pdev);
}
int intel_iommu_map_address(struct dmar_domain *domain, dma_addr_t iova,
u64 hpa, size_t size, int prot)
static int intel_iommu_map_range(struct iommu_domain *domain,
unsigned long iova, phys_addr_t hpa,
size_t size, int iommu_prot)
{
struct dmar_domain *dmar_domain = domain->priv;
u64 max_addr;
int addr_width;
int prot = 0;
int ret;
if (iommu_prot & IOMMU_READ)
prot |= DMA_PTE_READ;
if (iommu_prot & IOMMU_WRITE)
prot |= DMA_PTE_WRITE;
max_addr = (iova & VTD_PAGE_MASK) + VTD_PAGE_ALIGN(size);
if (domain->max_addr < max_addr) {
if (dmar_domain->max_addr < max_addr) {
int min_agaw;
u64 end;
/* check if minimum agaw is sufficient for mapped address */
min_agaw = vm_domain_min_agaw(domain);
min_agaw = vm_domain_min_agaw(dmar_domain);
addr_width = agaw_to_width(min_agaw);
end = DOMAIN_MAX_ADDR(addr_width);
end = end & VTD_PAGE_MASK;
@ -3070,28 +3078,27 @@ int intel_iommu_map_address(struct dmar_domain *domain, dma_addr_t iova,
__func__, min_agaw, max_addr);
return -EFAULT;
}
domain->max_addr = max_addr;
dmar_domain->max_addr = max_addr;
}
ret = domain_page_mapping(domain, iova, hpa, size, prot);
ret = domain_page_mapping(dmar_domain, iova, hpa, size, prot);
return ret;
}
EXPORT_SYMBOL_GPL(intel_iommu_map_address);
void intel_iommu_unmap_address(struct dmar_domain *domain,
dma_addr_t iova, size_t size)
static void intel_iommu_unmap_range(struct iommu_domain *domain,
unsigned long iova, size_t size)
{
struct dmar_domain *dmar_domain = domain->priv;
dma_addr_t base;
/* The address might not be aligned */
base = iova & VTD_PAGE_MASK;
size = VTD_PAGE_ALIGN(size);
dma_pte_clear_range(domain, base, base + size);
dma_pte_clear_range(dmar_domain, base, base + size);
if (domain->max_addr == base + size)
domain->max_addr = base;
if (dmar_domain->max_addr == base + size)
dmar_domain->max_addr = base;
}
EXPORT_SYMBOL_GPL(intel_iommu_unmap_address);
int intel_iommu_found(void)
{

4
include/linux/intel-iommu.h
View File

@ -330,10 +330,6 @@ extern int qi_flush_iotlb(struct intel_iommu *iommu, u16 did, u64 addr,
extern void qi_submit_sync(struct qi_desc *desc, struct intel_iommu *iommu);
int intel_iommu_map_address(struct dmar_domain *domain, dma_addr_t iova,
u64 hpa, size_t size, int prot);
void intel_iommu_unmap_address(struct dmar_domain *domain,
dma_addr_t iova, size_t size);
u64 intel_iommu_iova_to_phys(struct dmar_domain *domain, u64 iova);
#ifdef CONFIG_DMAR