cpufreq: Add OndemandPLUS Gov

Signed-off-by: houst0nn <houstonn@gmail.com>

Conflicts:
	drivers/cpufreq/Kconfig
	include/linux/cpufreq.h
sched: Add sysinterface for GENTLE_FAIR_SLEEPERS

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
add extra free kbytes tunable

Add a userspace visible knob to tell the VM to keep an extra amount
of memory free, by increasing the gap between each zone's min and
low watermarks.

This is useful for realtime applications that call system
calls and have a bound on the number of allocations that happen
in any short time period.  In this application, extra_free_kbytes
would be left at an amount equal to or larger than than the
maximum number of allocations that happen in any burst.

It may also be useful to reduce the memory use of virtual
machines (temporarily?), in a way that does not cause memory
fragmentation like ballooning does.

[ccross]
Revived for use on old kernels where no other solution exists.
The tunable will be removed on kernels that do better at avoiding
direct reclaim.

Change-Id: I765a42be8e964bfd3e2886d1ca85a29d60c3bb3e
Signed-off-by: Rik van Riel<riel@redhat.com>
Signed-off-by: Colin Cross <ccross@android.com>
Git-commit: 92189d47f66c67e5fd92eafaa287e153197a454f
Git-repo: https://android.googlesource.com/kernel/common/
[bhargavuln@codeaurora.org: resolve trivial merge conflicts]
Signed-off-by: Bhargav Upperla <bhargavuln@codeaurora.org>
sysctl: Don't scan for the leaks on headers

These header allocations have life cycle till the device goes
shutdown. So, considering them as leak is false positive. Remove
them by marking kmemleak_not_leak

CRs-Fixed: 466552
Change-Id: Id1571b78365e533ddfe866d45cef8f89b0b62bc7
Signed-off-by: Chintan Pandya <cpandya@codeaurora.org>
mm: slub: Tune to perform faster

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
readahead to 1024

Signed-off-by: Andre Saddler <dresadd09691@gmail.com>
mm: minimal swappiness

I've yet to find any desktop workload that benefits from anything higher than
a swappiness as low as possible. Unfortunately setting it to zero can rarely
lead to unexplained stalls in the VM so use 10.

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
net: loopback: set default mtu to 64K

loopback current mtu of 16436 bytes allows no more than 3 MSS TCP
segments per frame, or 48 Kbytes. Changing mtu to 64K allows TCP
stack to build large frames and significantly reduces stack overhead.

Performance boost on bulk TCP transferts can be up to 30 %, partly
because we now have one ACK message for two 64KB segments, and a lower
probability of hitting /proc/sys/net/ipv4/tcp_reordering default limit.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
Add BFQ/SIO/FIOPS/ZEN/VR IO Schedulers
Add BFQ/ZEN/VR IO Schedulers (part 2)
msm8974: Adapt memutils optimizations from msm8960pro

Preload farther to take advantage of the memory bus, and assume
64-byte cache lines.  Unroll some pairs of ldm/stm as well, for
unexplainable reasons.

Future enhancements should include,

- #define for how far to preload, possibly defined separately for
  memcpy, copy_*_user
- Tuning for misaligned buffers
- Tuning for memmove
- Tuning for small buffers
- Understanding mechanism behind ldm/stm unroll causing some gains
  in copy_to_user

BASELINE (msm8960pro):
======================================================================
memcpy 1000MB at 5MB       : took 808850 usec, bandwidth 1236.236 MB/s
copy_to_user 1000MB at 5MB : took 810071 usec, bandwidth 1234.234 MB/s
copy_from_user 1000MB at 5M: took 942926 usec, bandwidth 1060.060 MB/s
memmove 1000GB at 5MB      : took 848588 usec, bandwidth 1178.178 MB/s
copy_to_user 1000GB at 4kB : took 847916 usec, bandwidth 1179.179 MB/s
copy_from_user 1000GB at 4k: took 935113 usec, bandwidth 1069.069 MB/s
copy_page 1000GB at 4kB    : took 779459 usec, bandwidth 1282.282 MB/s

THIS PATCH:
======================================================================
memcpy 1000MB at 5MB       : took 346223 usec, bandwidth 2888.888 MB/s
copy_to_user 1000MB at 5MB : took 348084 usec, bandwidth 2872.872 MB/s
copy_from_user 1000MB at 5M: took 348176 usec, bandwidth 2872.872 MB/s
memmove 1000GB at 5MB      : took 348267 usec, bandwidth 2871.871 MB/s
copy_to_user 1000GB at 4kB : took 377018 usec, bandwidth 2652.652 MB/s
copy_from_user 1000GB at 4k: took 371829 usec, bandwidth 2689.689 MB/s
copy_page 1000GB at 4kB    : took 383763 usec, bandwidth 2605.605 MB/s

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
msm8974: Adapt memutils optimizations from msm8960pro (part 2)
Max screen off frequency and shut down cores while screen is off
msm_sleeper: added remaining code
cpufreq: intelliactive: initial coding and introduction!

intelliactive is based on Latest Google Interactive cpufreq governor from
Google.  The original Interactive provides smooth UI operations but suffers
slight battery drain due to its aggressive policies.  Intelliactive is an
improvement built on top of it.

It has the following enhancements added:
1. self-boost capability from input drivers (no need for PowerHAL assist)
2. two phase scheduling (idle/busy phases to prevent from jumping directly to
   max freq
3. Checks for offline cpus and short circuits some unnecessary checks to
   improve code execution paths
4. removed trace calls

Signed-off-by: Paul Reioux <reioux@gmail.com>
intelliactive: fix race condition when unregistering input handlers

Signed-off-by: Paul Reioux <reioux@gmail.com>
intelliactive: add upstream patches

Signed-off-by: Paul Reioux <reioux@gmail.com>
added new cpufreq governor SmartAssv2 (thanks to @Erasmux, @faux123 & @androdguide)
added new cpufreq governor LionHeart (thanks to @knzo & @androdguide)
added new cpufreq governor LagFree (thanks to @androdguide)