cpufreq: Manage only online cpus

cpufreq core doesn't manage offline cpus and if driver->init() has returned
mask including offline cpus, it may result in unwanted behavior by cpufreq core
or governors.

We need to get only online cpus in this mask. There are two places to fix this
mask, cpufreq core and cpufreq driver. It makes sense to do this at common place
and hence is done in core.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
Enable pipe flag.

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
dts: change back to sensor 0, sensor 5 specifically tracks cpu0.

Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
DTSi: Increase throttling temperatures and reduce sensor hysteresis to smooth out temperature reporting spikes
scripts: remove localversion "+" from kernel version strings

Signed-off-by: faux123 <reioux@gmail.com>
msm: acpuclock: Fix acpuclk_data null pointer dereference

If acpuclk_data is null, dereferencing it in acpuclk_get_switch_time
causes a kernel panic.  Add pointer check to fix that.

Change-Id: I69b92671c8cf26cb45ec8f1193c147be2ebe4c16
Signed-off-by: Junjie Wu <junjiew@codeaurora.org>
sched: LOAD_FREQ (4*HZ+61) avoids loadavg Moire. From http://ripke.com/loadavg/moire

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
block: row-iosched idling triggered by readahead pages

In the current implementation idling is triggered only by request
insertion frequency. This heuristic is not very accurate and may hit
random requests that shouldn't trigger idling. This patch uses the
PG_readahead flag in struct page's flags, which indicates that the page
is part of a readahead window, to start idling upon dispatch of a request
associated with a readahead page.

The above readehead flag is used together with the existing
insertion-frequency trigger. The frequency timer will catch read requests
which are not part of a readahead window, but are still part of a
sequential stream (and therefore dispatched in small time intervals).

Change-Id: Icb7145199c007408de3f267645ccb842e051fd00
Signed-off-by: Lee Susman <lsusman@codeaurora.org>
block: row: Remove warning massage from add_request

Regular priority queues is marked as "starved" if it skipped a dispatch
due to being empty. When a new request is added to a "starved" queue
it will be marked as urgent.
The removed WARN_ON was warning about an impossible case when a regular
priority (read) queue was marked as starved but wasn't empty. This is
a possible case due to the bellow:
If the device driver fetched a read request that is pending for
transmission and an URGENT request arrives, the fetched read will be
reinserted back to the scheduler. Its possible that the queue it will be
reinserted to was marked as "starved" in the meanwhile due to being empty.

CRs-fixed: 517800
Change-Id: Iaae642ea0ed9c817c41745b0e8ae2217cc684f0c
Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org>
msm: kgsl: Reduce unnecessary calls to _wake

If the device is already ACTIVE do not call _wake.

Change-Id: I2ae3956eb1bbc0a8bc0f1c147547aeed601622aa
Signed-off-by: Lucille Sylvester <lsylvest@codeaurora.org>
msm: kgsl: Fix a missing semicolon in the KGSL IOMMU handler

in check_if_freed() a call to kgsl_get_memory_usage() was terminated with
a comma instead of a semicolon.  Through a quirk in a macro this somehow
managed to compile and function properly but that doesn't make it okay.

CRs-fixed: 497280
Change-Id: Ic0dedbadfdf901bbc68b7f8cefb231d08dd01a95
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
mm: pass readahead info down to the i/o scheduler

Some i/o schedulers (i.e. row-iosched, cfq-iosched) deploy an idling
algorithm in order to be better synced with the readahead algorithm.
Idling is a prediction algorithm for incoming read requests.

In this patch we mark pages which are part of a readahead window, by
setting a newly introduced flag. With this flag, the i/o scheduler can
identify a request which is associated with a readahead page. This
enables the i/o scheduler's idling mechanism to be en-sync with the
readahead mechanism and, in turn, can increase read throughput.

Change-Id: I0654f23315b6d19d71bcc9cc029c6b281a44b196
Signed-off-by: Lee Susman <lsusman@codeaurora.org>
msm: kgsl: Only turn on the idle timer when active_cnt is 0

Only turn on the idle timer when the GPU expected to be quiet.
If the idle timer is enabled while the GPU is busy, there is
a chance it might unnecessarily fire during heavy GPU activity
such as a compute job.

Additionally, rather than trying to NAP directly from
kgsl_active_count_put(), just trigger the idle check work.

All of this makes the idle check happen more consistently.

Change-Id: Ic0dedbad57846f1e7bf7820ec3152cd20598b448
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
mdss: ppp: Correct ppp bw request

Integer overflow occurred in calculating ib, this value was then
given to bw request resulting in an invalid request.

Change-Id: I71c56ecb7b412a8343ac400295a97f00207316e2
Signed-off-by: Terence Hampson <thampson@codeaurora.org>
msm: mdss: Fix possible buffer overflow in ppp

Correct the limit check for the buffer format and avoid the
possible buffer overflow.

CRs-Fixed: 542730
Signed-off-by: Shivaraj Shetty <shivaraj@codeaurora.org>
Change-Id: I78f86cf8e7dcd0b3f4e124fbbf70353796583a47
msm: kgsl: Bump the frequency all the way to turbo for long ibs.

Process the enormous chunks of data faster.

Change-Id: Idf3fd0bfddc1cd1ac00f87dd72e403b81d70b170
Signed-off-by: Lucille Sylvester <lsylvest@codeaurora.org>
msm: kgsl: Do not start performance counters if not present

Certain hardware does not support performance counters and does not set
them.  Ensure the uninitialized performance counter variable does not
get dereferenced in this instance.

Change-Id: I8692090d60ff1e6a0c45b5699b90d9808ef61c5a
Signed-off-by: Carter Cooper <ccooper@codeaurora.org>
msm: kgsl: disable full cache flush if full_cache_threshold is 0

Make full_cache_threshold==0 mean never do a full cache flush,
since that is more useful than having it mean always do it.

Change-Id: I4ae46b6253f2d78a97f067b5f906637a3db1d5c8
Signed-off-by: Jeremy Gebben <jgebben@codeaurora.org>
msm: kgsl: Restrict allocated memory alignment to a max of 2^31

The GPU memory allocation flags allow 8 bits of space to specify
a power of 2 aligment for the allocated memory block.  Cap the
actual alignment to 2^31 since any value more than that will have
unintended effects on a 32 bit system.

Change-Id: Ic0dedbadd42a9a886b8bfada0c7d415caaed65de
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
msm: kgsl: Add a check to free the kgsl_timeline object.

Add a check to free the kgsl_timeline object only after
destroy flag is set. This is to avoid further references to timeline
from kgsl if it is already freed and also to catch any unbalanced
kref count.

Change-Id: I8017b9a928a26b703eb92b17ab6a361e4b479e5a
Signed-off-by: Rajesh Kemisetti <rajeshk@codeaurora.org>