ARM: tegra: power: Tune Tegra3 hotplug algorithm

- Account for EDP affect on total available MIPS when bringing on-line
(removing off-line) new cpu core. Add multi-core overhead (in percent)
as a parameter - set by default to 10%.

- Add balance level parameter: level value (in percent) defines minimum
speed ratio used by hotplug algorithm to determine if current CPU cores
are balanced, so that another core may be brought on-line. By default
set to 75%

Added tunables:

/sys/module/cpu_tegra3/parameters/mp_overhead
/sys/module/cpu_tegra3/parameters/balance_level

Bug 865176
Bug 867186

Original-Change-Id: I6f2e175e0b5ed14c4b85794949c1e65d0e7f4a36
Reviewed-on: http://git-master/r/49772
Reviewed-by: Scott Williams <scwilliams@nvidia.com>
Reviewed-by: Peter Boonstoppel <pboonstoppel@nvidia.com>
Tested-by: Peter Boonstoppel <pboonstoppel@nvidia.com>
Tested-by: Aleksandr Frid <afrid@nvidia.com>
Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
Reviewed-by: Diwakar Tundlam <dtundlam@nvidia.com>

Rebase-Id: Rcfefb570c30bf78f6eae155c3f3f7547ac64f128

0 files changed, 0 insertions, 0 deletions