Re: [PATCH v8 1/3] drm/xe/guc_ads: allocate UM queues in a separate BO
Matthew Auld <[email protected]> Wed, 5 Aug 2026 11:30:44 +0100
| Newsgroups | org.freedesktop.lists.intel-xe,org.kernel.vger.stable |
|---|---|
| Message-ID | <[email protected]> |
On 04/08/2026 17:50, Jia Yao wrote:
> Move the UM queues into a dedicated UC BO (ads->um_queue_bo) and avoid
> CPU memset operations on it, which eliminates the CPU as a potential
> cacheline-polluting agent and helps maintain consistency between GAM
> writes and GuC reads.
>
> Fixes: 9c57bc08652a ("drm/xe/lnl: Drop force_probe requirement")
> Cc: Gwan-gyeong Mun <[email protected]>
> Cc: Matthew Auld <[email protected]>
> Cc: <[email protected]> # v6.12+
> Signed-off-by: Jia Yao <[email protected]>
Reviewed-by: Matthew Auld <[email protected]>