On 23.02.21 11:36, Mark Kettenis wrote:
From: Nicolas Saenz Julienne nsaenzjulienne@suse.de Date: Tue, 23 Feb 2021 10:23:04 +0100
On Tue, 2021-02-23 at 09:15 +0100, Stefan Roese wrote:
Hi Bin, Hi Aaron,
I've added Nicolas to Cc, as he also recently did some work on the physical vs virtual addresses in the xHCI driver.
On 23.02.21 09:07, Bin Meng wrote:
Hi Aaron,
On Tue, Feb 23, 2021 at 3:31 PM Aaron Williams awilliams@marvell.com wrote:
I have a follow-up. USB is working on our OcteonTX boards running 2020.10. It may be something specific to the Octeon port. Note that I did see a problem where the scratchpad memory is using direct pointers instead of physical addresses (which will not work on MIPS). As far as I know, however, the Octeon XHCI controller does not use the scratchpad memory.
Do you plan to send a patch to convert the scratchpad pointer to physical address?
Nicolas, did your patch also address the scratchpad area (sorry for not looking myself).
Yes, my patch took care of that :).
Ah cool. I missed that patch. Looks like this is exactly what I need to cater for the translation done by the IOMMU on the Apple M1.
Won't be sending that patch then ;)
Nice.
Aaron, it might be that you missed this patch series with your latest mainline xHCI tests a few days ago. Could you please try again with current mainline and report back, if this changes the behavior on Octeon MIPS with USB3 hubs?
Thanks, Stefan