From mboxrd@z Thu Jan 1 00:00:00 1970 From: okaya@codeaurora.org (Sinan Kaya) Date: Sun, 29 Jan 2017 12:53:57 -0500 Subject: [PATCH V7 08/11] drivers: acpi: Handle IOMMU lookup failure with deferred probing or error In-Reply-To: <20170124123711.GA11996@red-moon> References: <1485188293-20263-1-git-send-email-sricharan@codeaurora.org> <1485188293-20263-9-git-send-email-sricharan@codeaurora.org> <20170124123711.GA11996@red-moon> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 1/24/2017 7:37 AM, Lorenzo Pieralisi wrote: > [+hanjun, tomasz, sinan] > > It is quite a key patchset, I would be glad if they can test on their > respective platforms with IORT. > Tested on top of 4.10-rc5. 1. Platform Hidma device passed dmatest 2. Seeing some USB stalls on a platform USB device. 3. PCIe NVME drive probed and worked fine with MSI interrupts after boot. 4. NVMe driver didn't probe following a hotplug insertion and received an SMMU error event during the insertion. /sys/bus/pci/slots/4 # /sys/bus/pci/slots/4 # dmesg | grep nvme [ 14.041357] nvme nvme0: pci function 0003:01:00.0 [ 198.399521] nvme nvme0: pci function 0003:01:00.0 [__198.416232]_nvme_0003:01:00.0:_enabling_device_(0000_->_0002) [ 264.402216] nvme nvme0: I/O 228 QID 0 timeout, disable controller [ 264.402313] nvme nvme0: Identify Controller failed (-4) [ 264.421270] nvme nvme0: Removing after probe failure status: -5 /sys/bus/pci/slots/4 # -- Sinan Kaya Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.