[PATCH 2/3] drm/i915/guc/slpc: Add waitboost functionality for SLPC

[Dixit, Ashutosh]

On Mon, 01 Nov 2021 18:26:07 -0700, Vinay Belgaumkar wrote:
>
> Add helper in RPS code for handling SLPC and non-SLPC paths.
> When boost is requested in the SLPC path, we can ask GuC to ramp
> up the frequency req by setting the minimum frequency to boost freq.
> Reset freq back to the min softlimit when there are no more waiters.
>
> v2: Schedule a worker thread which can boost freq from within
> an interrupt context as well.
>
> v3: No need to check against requested freq before scheduling boost
> work (Ashutosh)

Reviewed-by: Ashutosh Dixit <ashutosh.dixit at intel.com>