Re: [PATCH v2 0/5] accel/amdxdna: honour the SYNC_BO range

Lizhi Hou <[email protected]>
Newsgroups org.kernel.vger.linux-kernel,org.freedesktop.lists.dri-devel,org.kernel.vger.linux-media
Message-ID <[email protected]> 
On 8/13/26 13:14, Taimuraz Kaitmazov wrote:
> On 8/13/26 23:06, Alex Deucher wrote:
>> I wonder if there is some device config option to enable snooped vs.
>> non-snooped DMAs?
> I tried the PCIe one. Clearing Enable No Snoop in DevCtl, with lspci then showing NoSnoop-, changes nothing: same 20 out of 20 stale both ways. So the array either isn't carrying the attribute or isn't looking at it.

Yes. It is known that the legacy hardware has problem to support snoop. 
In your case, the XRT's buffer::sync() could be used.

Lizhi

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> Taimuraz
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