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| author |   Linus Walleij <linus.walleij@linaro.org> | 2019-11-13 23:10:52 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-11-13 23:10:52 +0100 |
| commit | 1566a6a30bf4d85849bab7e389392d6d3de1530e (patch) | |
| tree | bbc979f430cb07d41f7b35524027e25e7a4b9fe6 /drivers/iommu/intel-iommu.c | |
| parent | dt-bindings: pinctrl: Convert generic pin mux and config properties to schema (diff) | |
| parent | Linux 5.4-rc5 (diff) | |
| download | linux-dev-1566a6a30bf4d85849bab7e389392d6d3de1530e.tar.xz linux-dev-1566a6a30bf4d85849bab7e389392d6d3de1530e.zip | |
Merge tag 'v5.4-rc5' into devel
Linux 5.4-rc5
Diffstat (limited to 'drivers/iommu/intel-iommu.c')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 3f974919d3bd..79e35b3180ac 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -3471,7 +3471,7 @@ static bool iommu_need_mapping(struct device *dev) if (dev->coherent_dma_mask && dev->coherent_dma_mask < dma_mask) dma_mask = dev->coherent_dma_mask; - if (dma_mask >= dma_get_required_mask(dev)) + if (dma_mask >= dma_direct_get_required_mask(dev)) return false; /* @@ -3775,6 +3775,13 @@ static int intel_map_sg(struct device *dev, struct scatterlist *sglist, int nele return nelems; } +static u64 intel_get_required_mask(struct device *dev) +{ + if (!iommu_need_mapping(dev)) + return dma_direct_get_required_mask(dev); + return DMA_BIT_MASK(32); +} + static const struct dma_map_ops intel_dma_ops = { .alloc = intel_alloc_coherent, .free = intel_free_coherent, @@ -3787,6 +3794,7 @@ static const struct dma_map_ops intel_dma_ops = { .dma_supported = dma_direct_supported, .mmap = dma_common_mmap, .get_sgtable = dma_common_get_sgtable, + .get_required_mask = intel_get_required_mask, }; static void |