drm/i915/rps: Add frequency translation helpers
authorAndi Shyti <andi.shyti@intel.com>
Fri, 13 Dec 2019 18:37:35 +0000 (20:37 +0200)
committerChris Wilson <chris@chris-wilson.co.uk>
Fri, 13 Dec 2019 22:22:05 +0000 (22:22 +0000)
commite03512edd2b8d01fe9d34b8c66cc21933e4a68f6
treeb272770e607e993714a046743b689f68cb32bff7
parentf1925f3309d13d431f70e7b6b72ba59cae90fdff
drm/i915/rps: Add frequency translation helpers

Add two helpers that for reading the actual GT's frequency. The
two helpers are:

 - intel_rps_read_cagf: reads the frequency and returns it not
   normalized

 - intel_rps_read_actual_frequency: provides the frequency in Hz.

Use the above helpers in sysfs and debugfs.

Signed-off-by: Andi Shyti <andi.shyti@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191213183736.31992-2-andi@etezian.org
drivers/gpu/drm/i915/gt/intel_rps.c
drivers/gpu/drm/i915/gt/intel_rps.h
drivers/gpu/drm/i915/i915_debugfs.c
drivers/gpu/drm/i915/i915_pmu.c
drivers/gpu/drm/i915/i915_sysfs.c