Quoting Tvrtko Ursulin (2018-02-02 18:38:16)
> From: Tvrtko Ursulin
>
> Commit 99e48bf98dd0 ("drm/i915: Lock out execlist tasklet while peeking
> inside for busy-stats") added a tasklet_disable call in busy stats
> enabling, but we failed to understand that the PMU enable callback runs
> as an ha
From: Tvrtko Ursulin
Commit 99e48bf98dd0 ("drm/i915: Lock out execlist tasklet while peeking
inside for busy-stats") added a tasklet_disable call in busy stats
enabling, but we failed to understand that the PMU enable callback runs
as an hard IRQ (IPI).
Consequence of this is that the PMU enable
