Anders Kugler da39577432 gpu: nvgpu: tegra gpu to emc frequency mapping ...

o emc clock scaling
  Only take the gpu load into account for gpu frequencies below
  fmax @ Vmin.
  The granularity of frequency steps is much larger in the gpu
  frequency range below fmax @ Vmin than in the upper frequency range.
  Above fmax @ Vmin, keep the gpu unblocked and disregard the gpu load
  when evaluating the emc target.

o tegra_postscale()
  Round the new emc target to nearest discrete frequency.
  Set the emc frequency only if the new emc target is different
  from the previously requested emc frequency to avoid the penalty
  of the locks inside clk_set_rate().

Bug 1591643

Change-Id: I1a1a8734a74569c4d57b6e2bda4c11b2bda3f5f3
Signed-off-by: Anders Kugler <akugler@nvidia.com>
Reviewed-on: http://git-master/r/680937
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Ilan Aelion <iaelion@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

2015-04-04 19:00:48 -07:00

..

nvgpu

gpu: nvgpu: tegra gpu to emc frequency mapping

2015-04-04 19:00:48 -07:00