From mboxrd@z Thu Jan 1 00:00:00 1970 From: Magnus Damm Subject: [PATCH 04/10] iommu/ipmmu-vmsa: IPMMU device is 64-bit bus master Date: Fri, 18 Mar 2016 01:29:46 +0900 Message-ID: <20160317162946.24104.73567.sendpatchset@little-apple> References: <20160317162909.24104.31682.sendpatchset@little-apple> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20160317162909.24104.31682.sendpatchset@little-apple> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Cc: laurent.pinchart+renesas-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org, geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org, Magnus Damm , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-renesas-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, horms+renesas-/R6kz+dDXgpPR4JQBCEnsQ@public.gmane.org List-Id: iommu@lists.linux-foundation.org From: Magnus Damm The r8a7795 IPMMU supports 64-bit bus mastering and coherency for page tables. Signed-off-by: Magnus Damm --- 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);