VT-d: Change {un}map_range functions to implement {un}map interface
This patch changes the iommu-api functions for mapping and unmapping page ranges to use the new page-size based interface. This allows to remove the range based functions later. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
parent
6765178694
commit
b146a1c9f7
|
@ -3626,14 +3626,15 @@ static void intel_iommu_detach_device(struct iommu_domain *domain,
|
|||
domain_remove_one_dev_info(dmar_domain, pdev);
|
||||
}
|
||||
|
||||
static int intel_iommu_map_range(struct iommu_domain *domain,
|
||||
unsigned long iova, phys_addr_t hpa,
|
||||
size_t size, int iommu_prot)
|
||||
static int intel_iommu_map(struct iommu_domain *domain,
|
||||
unsigned long iova, phys_addr_t hpa,
|
||||
int gfp_order, int iommu_prot)
|
||||
{
|
||||
struct dmar_domain *dmar_domain = domain->priv;
|
||||
u64 max_addr;
|
||||
int addr_width;
|
||||
int prot = 0;
|
||||
size_t size;
|
||||
int ret;
|
||||
|
||||
if (iommu_prot & IOMMU_READ)
|
||||
|
@ -3643,6 +3644,7 @@ static int intel_iommu_map_range(struct iommu_domain *domain,
|
|||
if ((iommu_prot & IOMMU_CACHE) && dmar_domain->iommu_snooping)
|
||||
prot |= DMA_PTE_SNP;
|
||||
|
||||
size = PAGE_SIZE << gfp_order;
|
||||
max_addr = iova + size;
|
||||
if (dmar_domain->max_addr < max_addr) {
|
||||
int min_agaw;
|
||||
|
@ -3669,19 +3671,19 @@ static int intel_iommu_map_range(struct iommu_domain *domain,
|
|||
return ret;
|
||||
}
|
||||
|
||||
static void intel_iommu_unmap_range(struct iommu_domain *domain,
|
||||
unsigned long iova, size_t size)
|
||||
static int intel_iommu_unmap(struct iommu_domain *domain,
|
||||
unsigned long iova, int gfp_order)
|
||||
{
|
||||
struct dmar_domain *dmar_domain = domain->priv;
|
||||
|
||||
if (!size)
|
||||
return;
|
||||
size_t size = PAGE_SIZE << gfp_order;
|
||||
|
||||
dma_pte_clear_range(dmar_domain, iova >> VTD_PAGE_SHIFT,
|
||||
(iova + size - 1) >> VTD_PAGE_SHIFT);
|
||||
|
||||
if (dmar_domain->max_addr == iova + size)
|
||||
dmar_domain->max_addr = iova;
|
||||
|
||||
return gfp_order;
|
||||
}
|
||||
|
||||
static phys_addr_t intel_iommu_iova_to_phys(struct iommu_domain *domain,
|
||||
|
@ -3714,8 +3716,8 @@ static struct iommu_ops intel_iommu_ops = {
|
|||
.domain_destroy = intel_iommu_domain_destroy,
|
||||
.attach_dev = intel_iommu_attach_device,
|
||||
.detach_dev = intel_iommu_detach_device,
|
||||
.map_range = intel_iommu_map_range,
|
||||
.unmap_range = intel_iommu_unmap_range,
|
||||
.map = intel_iommu_map,
|
||||
.unmap = intel_iommu_unmap,
|
||||
.iova_to_phys = intel_iommu_iova_to_phys,
|
||||
.domain_has_cap = intel_iommu_domain_has_cap,
|
||||
};
|
||||
|
|
Loading…
Reference in a new issue