Re: [PATCH v12 12/15] drm/panfrost: Skip cache flush/invalidate when enabling perfcnt

[Adrián Larumbe]

On 2026-10-05 18:57:38+02:00, Boris Brezillon wrote:
> On Mon, 5 Oct 2026 17:05:14 +0100
> Steven Price <steven.price@xxxxxxx> wrote:
> 
> > On 05/10/2026 16:37, Boris Brezillon wrote:
> > 
> > Ah, yes that's true :) Although there's no need for us to do an
> > invalidate on the unmap path...
> 
> My bad, I'm confusing Panfrost and Panthor here. There's indeed no L2
> flush+inval on unmap in Panfrost. We do have an L2 flush+inval on map
> (FLUSH_PT) that should cover this case though.

But we're doing panfrost_mmu_flush_range() both at the end of maps and unmaps,
so I wonder whether when you say we do L2 flush+inval on map, what you meant
was when submit a new job, we force a flush+invalidate for the AS the job
runs against.