[Intel-gfx] [RFC] GPU-bound energy efficiency improvements for the intel_pstate driver (v2).

[Pandruvada, Srinivas]

On Tue, 2020-03-10 at 14:41 -0700, Francisco Jerez wrote:
> 

[...]

> Thanks in advance for any review feed-back and test reports.
> 
> [PATCH 01/10] PM: QoS: Add CPU_RESPONSE_FREQUENCY global PM QoS
> limit.
> [PATCH 02/10] drm/i915: Adjust PM QoS response frequency based on GPU
> load.
> [PATCH 03/10] OPTIONAL: drm/i915: Expose PM QoS control parameters
> via debugfs.
> [PATCH 04/10] Revert "cpufreq: intel_pstate: Drop ->update_util from
> pstate_funcs"
> [PATCH 05/10] cpufreq: intel_pstate: Implement VLP controller
> statistics and status calculation.
> [PATCH 06/10] cpufreq: intel_pstate: Implement VLP controller target
> P-state range estimation.
> [PATCH 07/10] cpufreq: intel_pstate: Implement VLP controller for HWP
> parts.
> [PATCH 08/10] cpufreq: intel_pstate: Enable VLP controller based on
> ACPI FADT profile and CPUID.
> [PATCH 09/10] OPTIONAL: cpufreq: intel_pstate: Add tracing of VLP
> controller status.
> [PATCH 10/10] OPTIONAL: cpufreq: intel_pstate: Expose VLP controller
> parameters via debugfs.
> 
Do you have debug patch (You don't to submit as a patch), which will
allow me to dynamically disable/enable all these changes? I want to
compare and do some measurements.

Thanks,
Srinivas 

> [1] https://marc.info/?l=linux-pm&m=152221943320908&w=2
> [2] 
> https://github.com/curro/linux/commits/intel_pstate-vlp-v2-hwp-only
> [3] https://github.com/curro/linux/commits/intel_pstate-vlp-v2
> [4] 
> http://people.freedesktop.org/~currojerez/intel_pstate-vlp-v2/benchmark-comparison-ICL.log
>