From: Magnus Damm <damm+rene...@opensource.se>
The r8a7795 IPMMU supports 64-bit bus mastering and
coherency for page tables.
Signed-off-by: Magnus Damm <damm+rene...@opensource.se>
---
drivers/iommu/ipmmu-vmsa.c | 1 +
1 file changed, 1 insertion(+)
--- 0020/drivers/iommu/ipmmu-vmsa.c
+++ work/drivers/iommu/ipmmu-vmsa.c 2016-03-18 00:22:09.830513000 +0900
@@ -948,6 +948,7 @@ static int ipmmu_probe(struct platform_d
mmu->dev = &pdev->dev;
mmu->num_utlbs = 32;
bitmap_zero(mmu->ctx, IPMMU_CTX_MAX);
+ dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
/* Map I/O memory and request IRQ. */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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