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[04/10] iommu/ipmmu-vmsa: IPMMU device is 64-bit bus master

Message ID 20160317162946.24104.73567.sendpatchset@little-apple (mailing list archive)
State Superseded
Delegated to: Geert Uytterhoeven
Headers show

Commit Message

Magnus Damm March 17, 2016, 4:29 p.m. UTC 
From: Magnus Damm <damm+renesas@opensource.se>

The r8a7795 IPMMU supports 64-bit bus mastering and
coherency for page tables.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
---

 drivers/iommu/ipmmu-vmsa.c |    1 +
 1 file changed, 1 insertion(+)
diff mbox

Patch

--- 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);