Messages in this thread |  | | From | Michael Ellerman <> | Subject | Re: [PATCH v7 07/12] powerpc/vas: Define vas_win_paste_addr() | Date | Fri, 25 Aug 2017 19:36:57 +1000 |
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Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> writes:
> Define an interface that the NX drivers can use to find the physical > paste address of a send window. This interface is expected to be used > with the mmap() operation of the NX driver's device. i.e the user space > process can use driver's mmap() operation to map the send window's paste > address into their address space and then use copy and paste instructions > to submit the CRBs to the NX engine. > > Note that kernel drivers will use vas_paste_crb() directly and don't need > this interface.
AFAICS this is not used. And if it was that would be a problem because there are implications in letting userspace do paste, so can you drop this from the series for now.
cheers
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