Re: [PATCH v3 07/12] drm/i915/gt: Pipelined page migration

2021-06-15 Thread Matthew Auld
On 14/06/2021 17:26, Thomas Hellström wrote: From: Chris Wilson If we pipeline the PTE updates and then do the copy of those pages within a single unpreemptible command packet, we can submit the copies and leave them to be scheduled without having to synchronously wait under a global lock. In

[PATCH v3 07/12] drm/i915/gt: Pipelined page migration

2021-06-14 Thread Thomas Hellström
From: Chris Wilson If we pipeline the PTE updates and then do the copy of those pages within a single unpreemptible command packet, we can submit the copies and leave them to be scheduled without having to synchronously wait under a global lock. In order to manage migration, we need to