From 01b9d4e21148c89fdbab3d6b3705f9791314b631 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Thu, 25 Jun 2020 15:08:25 +0200 Subject: iommu/vt-d: Use dev_iommu_priv_get/set() Remove the use of dev->archdata.iommu and use the private per-device pointer provided by IOMMU core code instead. Signed-off-by: Joerg Roedel Reviewed-by: Jerry Snitselaar Reviewed-by: Lu Baolu Link: https://lore.kernel.org/r/20200625130836.1916-3-joro@8bytes.org --- drivers/gpu/drm/i915/selftests/mock_gem_device.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'drivers/gpu/drm') diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c index 9b105b811f1f..e08601905a64 100644 --- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c +++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c @@ -24,6 +24,7 @@ #include #include +#include #include @@ -118,6 +119,9 @@ struct drm_i915_private *mock_gem_device(void) { struct drm_i915_private *i915; struct pci_dev *pdev; +#if IS_ENABLED(CONFIG_IOMMU_API) && defined(CONFIG_INTEL_IOMMU) + struct dev_iommu iommu; +#endif int err; pdev = kzalloc(sizeof(*pdev), GFP_KERNEL); @@ -136,8 +140,10 @@ struct drm_i915_private *mock_gem_device(void) dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); #if IS_ENABLED(CONFIG_IOMMU_API) && defined(CONFIG_INTEL_IOMMU) - /* hack to disable iommu for the fake device; force identity mapping */ - pdev->dev.archdata.iommu = (void *)-1; + /* HACK HACK HACK to disable iommu for the fake device; force identity mapping */ + memset(&iommu, 0, sizeof(iommu)); + iommu.priv = (void *)-1; + pdev->dev.iommu = &iommu; #endif pci_set_drvdata(pdev, i915); -- cgit From f34ce7a7018c2f71d78fc7f512f6daf01e487114 Mon Sep 17 00:00:00 2001 From: Baolin Wang Date: Fri, 12 Jun 2020 11:39:55 +0800 Subject: iommu: Add gfp parameter to io_pgtable_ops->map() Now the ARM page tables are always allocated by GFP_ATOMIC parameter, but the iommu_ops->map() function has been added a gfp_t parameter by commit 781ca2de89ba ("iommu: Add gfp parameter to iommu_ops::map"), thus io_pgtable_ops->map() should use the gfp parameter passed from iommu_ops->map() to allocate page pages, which can avoid wasting the memory allocators atomic pools for some non-atomic contexts. Signed-off-by: Baolin Wang Acked-by: Will Deacon Link: https://lore.kernel.org/r/3093df4cb95497aaf713fca623ce4ecebb197c2e.1591930156.git.baolin.wang@linux.alibaba.com Signed-off-by: Joerg Roedel --- drivers/gpu/drm/panfrost/panfrost_mmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/gpu/drm') diff --git a/drivers/gpu/drm/panfrost/panfrost_mmu.c b/drivers/gpu/drm/panfrost/panfrost_mmu.c index ed28aeba6d59..5a39eee8cf83 100644 --- a/drivers/gpu/drm/panfrost/panfrost_mmu.c +++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c @@ -262,7 +262,7 @@ static int mmu_map_sg(struct panfrost_device *pfdev, struct panfrost_mmu *mmu, while (len) { size_t pgsize = get_pgsize(iova | paddr, len); - ops->map(ops, iova, paddr, pgsize, prot); + ops->map(ops, iova, paddr, pgsize, prot, GFP_KERNEL); iova += pgsize; paddr += pgsize; len -= pgsize; -- cgit