From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-wm0-f66.google.com ([74.125.82.66]:39581 "EHLO mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729928AbeHMRdb (ORCPT ); Mon, 13 Aug 2018 13:33:31 -0400 From: Thierry Reding To: Mauro Carvalho Chehab , Thierry Reding Cc: Greg Kroah-Hartman , Dmitry Osipenko , Jonathan Hunter , linux-media@vger.kernel.org, linux-tegra@vger.kernel.org, devel@driverdev.osuosl.org Subject: [PATCH 14/14] ARM: tegra: Enable SMMU for VDE on Tegra124 Date: Mon, 13 Aug 2018 16:50:27 +0200 Message-Id: <20180813145027.16346-15-thierry.reding@gmail.com> In-Reply-To: <20180813145027.16346-1-thierry.reding@gmail.com> References: <20180813145027.16346-1-thierry.reding@gmail.com> Sender: linux-media-owner@vger.kernel.org List-ID: From: Thierry Reding The video decode engine can use the SMMU to use buffers that are not physically contiguous in memory. This allows better memory usage for video decoding, since fragmentation may cause contiguous allocations to fail. Signed-off-by: Thierry Reding --- arch/arm/boot/dts/tegra124.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi index 8fdca4723205..0713e0ed5fef 100644 --- a/arch/arm/boot/dts/tegra124.dtsi +++ b/arch/arm/boot/dts/tegra124.dtsi @@ -321,6 +321,8 @@ resets = <&tegra_car 61>, <&tegra_car 63>; reset-names = "vde", "bsev"; + + iommus = <&mc TEGRA_SWGROUP_VDE>; }; apbdma: dma@60020000 { -- 2.17.0