[Intel-gfx] [PATCH] TGL HAX drm/i915/tgl: Interrupts are overrated

[Chris Wilson]

Quoting Chris Wilson (2019-10-03 19:56:13)
> Why sleep when you can busywait for an interrupt? Throw out the old irq
> handlers, and use irq_poll instead.
> 
> References: https://bugs.freedesktop.org/show_bug.cgi?id=111880
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>
> ---
Fwiw, enabling rps is still a death sentence with this.
-Chris