On 03/05/18 09:42, Faiz Abbas wrote: > Hi Marc, > > On Thursday 03 May 2018 01:44 PM, Marc Zyngier wrote: >> On 03/05/18 05:49, Faiz Abbas wrote: >>> Hi Everyone, >>> >>> On Wednesday 11 April 2018 07:32 PM, Marc Zyngier wrote: >>>> On Wed, 11 Apr 2018 14:11:52 +0100, >>>> Bockholdt Arne wrote: >>>>> >>>>> Hi all, >>>>> >>>>> is there anything new, I've just tried the new stable 4.16.1 kernel >>>>> without any change. The Renesys USB3 controller is still not >>>>> functional. I'm willing to test any patch that is based on a stable >>>>> kernel version because the machine is in production use. >>>> >>>> Have you tested the branch[1] I mentioned in my previous email? >>>> Without your feedback, I cannot really make much progress on this. >>>> >>>> Thanks, >>>> >>>> M. >>>> >>>> [1] https://www.spinics.net/lists/linux-usb/msg167301.html >>>> >>> >>> I was also having problems with a Renesas card (01:00.0 USB controller >>> [0c03]: Renesas Technology Corp. uPD720201 USB 3.0 Host Controller >>> [1912:0014]) on a dra72x-evm. The kernel would just hang because of the >>> xhci reset. >>> >>> Log:https://pastebin.ubuntu.com/p/dYYV9DZMwx/ >>> >>> The patches on Marc's branch have fixed this for me as well. Thanks for >>> the fix. >> OK. I'll rebase this on a more recent version of the kernel, make it >> conditional on having an iommu (as it seems to be the only affected >> configuration), and post that to a wider audience. > > Just to be sure, you are talking about the original 32 bit DMA issue > being conditional on iommu right? Because dra72x doesn't use iommu. I'm talking about making the whole workaround dependent on the USB controller being behind an iommu. No iommu, no workaround (because it is likely that there is no problem in that case). M. -- Jazz is not dead. It just smells funny... -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
