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Tue, 4 Dec 2018 10:53:40 +0100 (CET) Subject: Re: use generic DMA mapping code in powerpc V4 From: Christian Zigotzky To: Christoph Hellwig References: <20181114082314.8965-1-hch@lst.de> <20181127074253.GB30186@lst.de> <87zhttfonk.fsf@concordia.ellerman.id.au> <4d4e3cdd-d1a9-affe-0f63-45b8c342bbd6@xenosoft.de> <20181129170351.GC27951@lst.de> <20181130105346.GB26765@lst.de> <8694431d-c669-b7b9-99fa-e99db5d45a7d@xenosoft.de> <20181130131056.GA5211@lst.de> <25999587-2d91-a63c-ed38-c3fb0075d9f1@xenosoft.de> Message-ID: <58c61afb-290f-6196-c72c-ac7b61b84718@xenosoft.de> Date: Tue, 4 Dec 2018 10:53:39 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.2 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: de-DE X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, Darren Stevens , linux-kernel@vger.kernel.org, Julian Margetson , linux-mm@kvack.org, iommu@lists.linux-foundation.org, Paul Mackerras , Olof Johansson , linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On 04 December 2018 at 08:31AM, Christian Zigotzky wrote: > Hi All, > > Could you please test Christoph's kernel on your PASEMI and NXP > boards? Download: > > 'git clone git://git.infradead.org/users/hch/misc.git -b powerpc-dma.5 a' > > Thanks, > Christian > I successfully tested this kernel on a virtual e5500 QEMU machine today. Command: ./qemu-system-ppc64 -M ppce500 -cpu e5500 -m 2048 -kernel uImage-dma -drive format=raw,file=MATE_PowerPC_Remix_2017_0.9.img,index=0,if=virtio -nic user,model=e1000 -append "rw root=/dev/vda" -device virtio-vga -device virtio-mouse-pci -device virtio-keyboard-pci -usb -soundhw es1370 -smp 4 QEMU version 3.1.0. I don't know why this kernel doesn't recognize the hard disks connected to my physical P5020 board and why the onboard ethernet on my PASEMI board doesn't work. (dma_direct_map_page: overflow) -- Christian