From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joerg Roedel Subject: Re: [PATCH 22/22] Revert "iommu/tegra: gart: Do not register with bus" Date: Tue, 30 May 2017 11:21:23 +0200 Message-ID: <20170530092123.GB2818@8bytes.org> References: <781477cf9ac61301e639f71236d65a8b31586827.1495498184.git.digetx@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <781477cf9ac61301e639f71236d65a8b31586827.1495498184.git.digetx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Dmitry Osipenko Cc: Thierry Reding , Mikko Perttunen , linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, DRI Development , Erik Faye-Lund List-Id: linux-tegra@vger.kernel.org On Tue, May 23, 2017 at 03:16:33AM +0300, Dmitry Osipenko wrote: > The GART driver was disabled because it was picked by as an IOMMU provider > for the DRM driver on Tegra20, which is not the purpose of the GART. Now > DRM driver avoids to use IOMMU on Tegra20, so the GART driver can be > re-enabled. Potentially there are interesting use cases of the GART for > Tegra20, like mmap'ing of a fallback memory allocation and using its GART > aperture for an accelerated graphics operation. > > This reverts commit c7e3ca515e784a82223f447b79eb2090bdb91378. > > Signed-off-by: Dmitry Osipenko > --- > drivers/iommu/tegra-gart.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Acked-by: Joerg Roedel