From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joerg Roedel Subject: Re: AMD IOMMU + SME + amdgpu regression Date: Wed, 15 Jul 2020 11:17:20 +0200 Message-ID: <20200715091720.GV27672@8bytes.org> References: <1591915710.rakbpzst8h.none.ref@localhost> <1591915710.rakbpzst8h.none@localhost> <20200622100257.GD31822@suse.de> <1592839701.mxvvths2x9.none@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1592839701.mxvvths2x9.none@localhost> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: "Alex Xu (Hello71)" Cc: Joerg Roedel , Andy Gross , Lu Baolu , Bjorn Andersson , Daniel Drake , David Woodhouse , Gerald Schaefer , Christoph Hellwig , Heiko Stuebner , Jean-Philippe Brucker , jonathan.derrick-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, Jonathan Hunter , Kukjin Kim , Krzysztof Kozlowski , linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-s390-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-samsung-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Matthias Brugger List-Id: virtualization@lists.linuxfoundation.org On Mon, Jun 22, 2020 at 11:30:04AM -0400, Alex Xu (Hello71) wrote: > Yes, it works with SME off with dbed452a078 ("dma-pool: decouple > DMA_REMAP from DMA_COHERENT_POOL") applied. Okay, I can reproduce the problem on my Ryzen System, and the boot log shows various warnings/bugs from the amdgpu driver. I think this should be looked at by the AMDGPU folks first, as I didn't really got far looking into the GPU drivers code. Regards, Joerg