[Intel-gfx] [PATCH v2 24/24] drm/i915: Do not share hwsp across contexts any more

[Thomas Hellström (Intel)]

On 8/19/20 4:09 PM, Maarten Lankhorst wrote:
> Instead of sharing pages with breadcrumbs, give each timeline a
> single page. This allows unrelated timelines not to share locks
> any more during command submission.
>
> As an additional benefit, seqno wraparound no longer requires
> i915_vma_pin, which means we no longer need to worry about a
> potential -EDEADLK at a point where we are ready to submit.
>
> Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>

Reviewed-by: Thomas Hellström <thomas.hellstrom at intel.com>