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Date: Mon, 22 Jun 2020 11:30:04 -0400 From: "Alex Xu (Hello71)" <alex_y_xu@...oo.ca> To: Joerg Roedel <jroedel@...e.de> Cc: Andy Gross <agross@...nel.org>, Lu Baolu <baolu.lu@...ux.intel.com>, Bjorn Andersson <bjorn.andersson@...aro.org>, Daniel Drake <drake@...lessm.com>, David Woodhouse <dwmw2@...radead.org>, Gerald Schaefer <gerald.schaefer@...ibm.com>, Christoph Hellwig <hch@....de>, Heiko Stuebner <heiko@...ech.de>, Jean-Philippe Brucker <jean-philippe@...aro.org>, jonathan.derrick@...el.com, Jonathan Hunter <jonathanh@...dia.com>, Joerg Roedel <joro@...tes.org>, Kukjin Kim <kgene@...nel.org>, Krzysztof Kozlowski <krzk@...nel.org>, linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org, linux-rockchip@...ts.infradead.org, linux-s390@...r.kernel.org, linux-samsung-soc@...r.kernel.org, linux-tegra@...r.kernel.org, Matthias Brugger <matthias.bgg@...il.com>, Marek Szyprowski <m.szyprowski@...sung.com>, David Rientjes <rientjes@...gle.com>, Rob Clark <robdclark@...il.com>, Robin Murphy <robin.murphy@....com>, Thierry Reding <thierry.reding@...il.com>, virtualization@...ts.linux-foundation.org, Will Deacon <will@...nel.org> Subject: Re: AMD IOMMU + SME + amdgpu regression Excerpts from Joerg Roedel's message of June 22, 2020 6:02 am: > Hi Alex, > > On Thu, Jun 11, 2020 at 07:05:21PM -0400, Alex Xu (Hello71) wrote: >> I am using an ASRock B450 Pro4 with Ryzen 1600 and ASUS RX 480. I don't >> understand this code at all, but let me know what I can do to >> troubleshoot. > > Does it boot without SME enabled? > > > Regards, > > Joerg > Yes, it works with SME off with dbed452a078 ("dma-pool: decouple DMA_REMAP from DMA_COHERENT_POOL") applied.
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