From 8e8b4ac5b0ab759fffcd4d802ab3e084e3609191 Mon Sep 17 00:00:00 2001 From: Pasha Tatashin Date: Sat, 13 Apr 2024 00:25:20 +0000 Subject: [PATCH] iommu/tegra-smmu: use page allocation function provided by iommu-pages.h Convert iommu/tegra-smmu.c to use the new page allocation functions provided in iommu-pages.h. Signed-off-by: Pasha Tatashin Acked-by: David Rientjes Acked-by: Thierry Reding Tested-by: Bagas Sanjaya Link: https://lore.kernel.org/r/20240413002522.1101315-10-pasha.tatashin@soleen.com Signed-off-by: Joerg Roedel --- drivers/iommu/tegra-smmu.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index 14e525bd0d9b..f86c7ae91814 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -19,6 +19,8 @@ #include #include +#include "iommu-pages.h" + struct tegra_smmu_group { struct list_head list; struct tegra_smmu *smmu; @@ -282,7 +284,7 @@ static struct iommu_domain *tegra_smmu_domain_alloc_paging(struct device *dev) as->attr = SMMU_PD_READABLE | SMMU_PD_WRITABLE | SMMU_PD_NONSECURE; - as->pd = alloc_page(GFP_KERNEL | __GFP_DMA | __GFP_ZERO); + as->pd = __iommu_alloc_pages(GFP_KERNEL | __GFP_DMA, 0); if (!as->pd) { kfree(as); return NULL; @@ -290,7 +292,7 @@ static struct iommu_domain *tegra_smmu_domain_alloc_paging(struct device *dev) as->count = kcalloc(SMMU_NUM_PDE, sizeof(u32), GFP_KERNEL); if (!as->count) { - __free_page(as->pd); + __iommu_free_pages(as->pd, 0); kfree(as); return NULL; } @@ -298,7 +300,7 @@ static struct iommu_domain *tegra_smmu_domain_alloc_paging(struct device *dev) as->pts = kcalloc(SMMU_NUM_PDE, sizeof(*as->pts), GFP_KERNEL); if (!as->pts) { kfree(as->count); - __free_page(as->pd); + __iommu_free_pages(as->pd, 0); kfree(as); return NULL; } @@ -599,14 +601,14 @@ static u32 *as_get_pte(struct tegra_smmu_as *as, dma_addr_t iova, dma = dma_map_page(smmu->dev, page, 0, SMMU_SIZE_PT, DMA_TO_DEVICE); if (dma_mapping_error(smmu->dev, dma)) { - __free_page(page); + __iommu_free_pages(page, 0); return NULL; } if (!smmu_dma_addr_valid(smmu, dma)) { dma_unmap_page(smmu->dev, dma, SMMU_SIZE_PT, DMA_TO_DEVICE); - __free_page(page); + __iommu_free_pages(page, 0); return NULL; } @@ -649,7 +651,7 @@ static void tegra_smmu_pte_put_use(struct tegra_smmu_as *as, unsigned long iova) tegra_smmu_set_pde(as, iova, 0); dma_unmap_page(smmu->dev, pte_dma, SMMU_SIZE_PT, DMA_TO_DEVICE); - __free_page(page); + __iommu_free_pages(page, 0); as->pts[pde] = NULL; } } @@ -688,7 +690,7 @@ static struct page *as_get_pde_page(struct tegra_smmu_as *as, if (gfpflags_allow_blocking(gfp)) spin_unlock_irqrestore(&as->lock, *flags); - page = alloc_page(gfp | __GFP_DMA | __GFP_ZERO); + page = __iommu_alloc_pages(gfp | __GFP_DMA, 0); if (gfpflags_allow_blocking(gfp)) spin_lock_irqsave(&as->lock, *flags); @@ -700,7 +702,7 @@ static struct page *as_get_pde_page(struct tegra_smmu_as *as, */ if (as->pts[pde]) { if (page) - __free_page(page); + __iommu_free_pages(page, 0); page = as->pts[pde]; }