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| author | Lu Baolu <baolu.lu@linux.intel.com> | 2023-01-10 10:54:06 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2023-01-13 16:39:16 +0100 |
| commit | c1fe9119ee707459421d8f7387e803b0ea78c21b (patch) | |
| tree | 66cc77a650c53be6a209d162ccabb5b3f0d8735a /drivers/iommu/tegra-gart.c | |
| parent | 6caeb33fa986151f745fc62190bc28a593b8a0d2 (diff) | |
| download | linux-stable-c1fe9119ee707459421d8f7387e803b0ea78c21b.tar.gz linux-stable-c1fe9119ee707459421d8f7387e803b0ea78c21b.tar.bz2 linux-stable-c1fe9119ee707459421d8f7387e803b0ea78c21b.zip | |
iommu: Add set_platform_dma_ops callbacks
For those IOMMU drivers that don't provide default domain support, add an
implementation of set_platform_dma_ops callback so that the IOMMU core
could return the DMA control to platform DMA ops. At the same time, with
the set_platform_dma_ops implemented, there is no need for detach_dev.
Remove it to avoid dead code.
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20230110025408.667767-4-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/tegra-gart.c')
| -rw-r--r-- | drivers/iommu/tegra-gart.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c index ed53279d1106..a482ff838b53 100644 --- a/drivers/iommu/tegra-gart.c +++ b/drivers/iommu/tegra-gart.c @@ -124,9 +124,9 @@ static int gart_iommu_attach_dev(struct iommu_domain *domain, return ret; } -static void gart_iommu_detach_dev(struct iommu_domain *domain, - struct device *dev) +static void gart_iommu_set_platform_dma(struct device *dev) { + struct iommu_domain *domain = iommu_get_domain_for_dev(dev); struct gart_device *gart = gart_handle; spin_lock(&gart->dom_lock); @@ -270,11 +270,11 @@ static const struct iommu_ops gart_iommu_ops = { .domain_alloc = gart_iommu_domain_alloc, .probe_device = gart_iommu_probe_device, .device_group = generic_device_group, + .set_platform_dma_ops = gart_iommu_set_platform_dma, .pgsize_bitmap = GART_IOMMU_PGSIZES, .of_xlate = gart_iommu_of_xlate, .default_domain_ops = &(const struct iommu_domain_ops) { .attach_dev = gart_iommu_attach_dev, - .detach_dev = gart_iommu_detach_dev, .map = gart_iommu_map, .unmap = gart_iommu_unmap, .iova_to_phys = gart_iommu_iova_to_phys, |