From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sjoerd Simons Subject: Re: [PATCH v3 00/19] Exynos SYSMMU (IOMMU) integration with DT and DMA-mapping subsystem Date: Tue, 02 Dec 2014 10:59:26 +0100 Message-ID: <1417514366.21830.22.camel@collabora.co.uk> References: <1416395748-10731-1-git-send-email-m.szyprowski@samsung.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg="sha-1"; protocol="application/x-pkcs7-signature"; boundary="=-/s6GUZ+fuvC+wTkJqzSg" Return-path: In-Reply-To: <1416395748-10731-1-git-send-email-m.szyprowski@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org To: Marek Szyprowski Cc: iommu@lists.linux-foundation.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linaro-mm-sig@lists.linaro.org, Arnd Bergmann , Shaik Ameer Basha , Cho KyongHo , Joerg Roedel , Thierry Reding , Olof Johansson , Laurent Pinchart , Rob Herring , Will Deacon , David Wodhouse , Inki Dae , Kukjin Kim , Tomasz Figa , Kyungmin Park , Javier Martinez Canillas , Gustavo Padovan List-Id: iommu@lists.linux-foundation.org --=-/s6GUZ+fuvC+wTkJqzSg Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hey Marek, Inki, On Wed, 2014-11-19 at 12:15 +0100, Marek Szyprowski wrote: > Hello Everyone, >=20 > This is another attempt to finally make Exynos SYSMMU driver fully > integrated with DMA-mapping subsystem. The main change from previous > version is a rebase onto latest "automatic DMA configuration for IOMMU > masters" patches from Will Deacon. Do you happen to know if anyone is working on iommu/dma-mapping patches for Exynos 5 based on this patchset?=20 For some background to that question, We (re-)discovered yesterday that the out-of-tree exynos-reference kernel iommu patches are required to get HDMI out working on exynos 5 boards. The current situation in mainline is rather broken, HDMI output without CONFIG_DRM_EXYNOS_IOMMU results in just displaying stripes[0]. 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