Messages in this thread | | | Date | Wed, 30 Jun 2021 07:49:05 +0100 | From | Christoph Hellwig <> | Subject | Re: [RFC] /dev/ioasid uAPI proposal |
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On Mon, Jun 07, 2021 at 04:08:02PM -0300, Jason Gunthorpe wrote: > Compatibility is important, but when I look in the kernel code I see > very few places that call wbinvd(). Basically all DRM for something > relavent to qemu. > > That tells me that the vast majority of PCI devices do not generate > no-snoop traffic.
Part of it is that we have no general API for it, because the DRM folks as usual just tarted piling up local hacks instead of introducing a proper API..
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