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iommu/io-pgtable: Pass struct iommu_iotlb_gather to ->tlb_add_page()

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With all the pieces in place, we can finally propagate the
iommu_iotlb_gather structure from the call to unmap() down to the IOMMU
drivers' implementation of ->tlb_add_page(). Currently everybody ignores
it, but the machinery is now there to defer invalidation.

Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Will Deacon
2019-07-02 16:45:15 +01:00
parent a2d3a382d6
commit 3951c41af4
8 changed files with 47 additions and 29 deletions
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3
drivers/iommu/mtk_iommu.c
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@@ -202,7 +202,8 @@ static void mtk_iommu_tlb_flush_leaf(unsigned long iova, size_t size,
mtk_iommu_tlb_sync(cookie);
}
static void mtk_iommu_tlb_flush_page_nosync(unsigned long iova, size_t granule,
static void mtk_iommu_tlb_flush_page_nosync(struct iommu_iotlb_gather *gather,
unsigned long iova, size_t granule,
void *cookie)
{
mtk_iommu_tlb_add_flush_nosync(iova, granule, granule, true, cookie);