iommu/tegra-smmu: Remove PageReserved manipulation

[karo-tx-linux.git] / drivers / iommu / tegra-smmu.c

diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index 43b69c8cbe460a48da8431b11c8345c2e0ca5956..eb9f6068fe2e0fad5ff69d2e79448bf1fdd852bd 100644 (file)
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -293,7 +293,6 @@ static struct iommu_domain *tegra_smmu_domain_alloc(unsigned type)
 
        /* clear PDEs */
        pd = page_address(as->pd);
-       SetPageReserved(as->pd);
 
        for (i = 0; i < SMMU_NUM_PDE; i++)
                pd[i] = 0;
@@ -311,7 +310,6 @@ static void tegra_smmu_domain_free(struct iommu_domain *domain)
        struct tegra_smmu_as *as = to_smmu_as(domain);
 
        /* TODO: free page directory and page tables */
-       ClearPageReserved(as->pd);
 
        kfree(as);
 }
@@ -566,8 +564,6 @@ static u32 *as_get_pte(struct tegra_smmu_as *as, dma_addr_t iova,
 
                as->pts[pde] = page;
 
-               SetPageReserved(page);
-
                pd[pde] = SMMU_MK_PDE(dma, SMMU_PDE_ATTR | SMMU_PDE_NEXT);
 
                dma_sync_single_range_for_device(smmu->dev, as->pd_dma,
@@ -617,7 +613,6 @@ static void tegra_smmu_pte_put_use(struct tegra_smmu_as *as, unsigned long iova)
 
                /* Finally, free the page */
                dma_unmap_page(smmu->dev, pte_dma, SMMU_SIZE_PT, DMA_TO_DEVICE);
-               ClearPageReserved(page);
                __free_page(page);
                as->pts[pde] = NULL;
        }