msm: mdss: Fix check for highest of overlap and prefill bw calc

This check is supposed to be used to get the max between overlap and
prefill bandwidth value. This value is used when calculating the ib
bandwidth value to request when bus bandwidth is updated. Having a value
that is too low results in mdp underrun.

Change-Id: Ie1302737f004d8e030f8d61c75d4301fe99b1069
Signed-off-by: Terence Hampson <thampson@codeaurora.org>
ASoC: msm: compr: Ensure drain sequence is executed

This change ensures drain sequence is executed even if
a pause/resume commands are sent from userspace while
the control thread is waiting for all buffers to be consumed
by DSP.
CRs-Fixed: 711920

Change-Id: I6ffcc072e00fa1865b0484f54fa6b070c1a73cf2
Signed-off-by: Haynes Mathew George <hgeorge@codeaurora.org>
mdss: mdp: Appropriate check to see if right LM is needed

New fixes rely on selecting right layer mixer by changing
destination layer x offset to be >= left layer mixer's width.
This patch is to allow for this logic to be corrected on
chipsets that do not support x offset being greater than
layer mixer's width.

Change-Id: I860e87a8092c81a0a1523ee7b47b02b57160f4af
Signed-off-by: Terence Hampson <thampson@codeaurora.org>
msm: msm_bus: Suspected fix for deadlock

mutex is not released while checking for
null pdata which can lead to possible deadlock
condition.

Change-Id: I1dc3efd725df5bb75c96434a81d9a8f3f868cd0a
Signed-off-by: Alok Chauhan <alokc@codeaurora.org>
ASoC: msm: Fix ADM GET PARAM callback

Add size check on inband get param call and do
not process inband if RTAC is active.

Change-Id: I2c099f5ea254a214f224dda556773a7fe6754fe5
CRs-fixed: 548397
Signed-off-by: Ben Romberger <bromberg@codeaurora.org>
msm: vidc: Enable clocks before iommu attach

Change the fw load sequence to match the opposite of
unload sequence. This makes sure all clocks are on before calling
iommu attach.

Change-Id: I1113357c37158da5889f26da8fd4a74d0d170c07
Signed-off-by: Maheshwar Ajja <majja@codeaurora.org>
find7: Disable JTAG support

 * This has no place in production.

Change-Id: I2c1371a73f187cdfb59a7ac80336adf12369ca9e
Merge branch 'cm-11.0' into ak-11.0-gold
Kernel Version: AK.051.GOLD.OPO.CM11
find7: Update defconfig

 * Disable unnecessary stuff.

Change-Id: Id6bb45cf07e0063f2169c013cfdb84551b1f6471
fastcharge: backported and adapted for OnePlus One

thanks a lot
@faux123
@DooMLoRD
ak_bacon_defconfig: enable FAST_CHARGE
drivers/power/qpnp-charger.c: fix charging issues with non-Oppo chargers

1. refactor the current limiting code to use existing temperature sensing
   capability rather than some arbitrary 1 minute loop

2. removed all current check loops below 900mA. Due to inaccurate ADC input
   readings, some non-Oppo wall chargers are mis-identified and their charging
   capabilities severely limited by the over protective driver

USB data port charging are unaffected by these changes

Change-Id: Id888a25b02b99556d29156520e01d21f7a487168
Signed-off-by: Paul Reioux <reioux@gmail.com>
drivers/power/qpnp-charger.c: add back dropped aicl control

Change-Id: Ib62d2a948aec7c2974ed6a98b11df208cdb8af4c
Signed-off-by: Paul Reioux <reioux@gmail.com>
msm: kgsl: Use high priority workqueue

Change-Id: If245f7876a68da079b2e0b9e371fdcbeb85ef0b5
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
Kernel Version: AK.052.GOLD.OPO.CM11
net/ipv6/addrconf: fix wdog_bark caused by infinite spinning on a deadlock

A synchronization issue may occur while addrconf_ifdown(),
when it updates inet6_addr_lst[] with already destroyed *ifp
by ipv6_add/del_addr(), using the same addrconf_hash_lock.

[core 0]                                        [core 1]
   |                                               |
   |->ipv6_add_addr                                |->addrconf_ifdown
       |                                               |
       |                                               |-> spin_lock(&addrconf_hash_lock);
       |                                               |-> remove ifa->addr_lst from inet6_addr_lst
       |                                               |-> spin_unlock(&addrconf_hash_lock);
       |-> spin_lock(&addrconf_hash_lock);             |
       |-> add ifa->addr_lst to inet6_addr_lst[hash]   |
       |-> spin_unlock(&addrconf_hash_lock);           |
       |-> write_lock(&idev-lock);                     |
       |-> add ifa->if_list to idev->addr_list         |
       |-> write_unlock(&idev->lock);                  |
       |                                               |-> write_lock(&idev->lock);
       |                                               |-> remove ifa->if_list from idev->addr_list
       |                                               |-> write_unlock(&idev->lock);

[28055.378524] ------------[ cut here ]------------
[28055.378591] WARNING: at net/ipv6/addrconf.c:546 inet6_ifa_finish_destroy+0x98/0xc8()
[28055.378691] [<c010de1c>] (unwind_backtrace+0x0/0x144) from [<c09fd08c>] (dump_stack+0x20/0x24)
[28055.378747] [<c09fd08c>] (dump_stack+0x20/0x24) from [<c0192adc>] (warn_slowpath_common+0x58/0x70)
[28055.378840] [<c0192adc>] (warn_slowpath_common+0x58/0x70) from [<c0192bec>] (warn_slowpath_null+0x2c/0x34)
[28055.378931] [<c0192bec>] (warn_slowpath_null+0x2c/0x34) from [<c0911a90>] (inet6_ifa_finish_destroy+0x98/0xc8)
[28055.379026] [<c0911a90>] (inet6_ifa_finish_destroy+0x98/0xc8) from [<c091498c>] (addrconf_ifdown+0x2e4/0x430)
[28055.379120] [<c091498c>] (addrconf_ifdown+0x2e4/0x430) from [<c0915b70>] (addrconf_notify+0xe4/0x3ac)
[28055.379209] [<c0915b70>] (addrconf_notify+0xe4/0x3ac) from [<c01b9df0>] (notifier_call_chain+0x54/0x94)
[28055.379321] [<c01b9df0>] (notifier_call_chain+0x54/0x94) from [<c01ba3ac>] (__raw_notifier_call_chain+0x24/0x2c)
[28055.379379] [<c01ba3ac>] (__raw_notifier_call_chain+0x24/0x2c) from [<c01ba3dc>] (raw_notifier_call_chain+0x28/0x30)
[28055.379475] [<c01ba3dc>] (raw_notifier_call_chain+0x28/0x30) from [<c0840ea4>] (call_netdevice_notifiers+0x38/0x60)
[28055.379568] [<c0840ea4>] (call_netdevice_notifiers+0x38/0x60) from [<c0844d5c>] (__dev_notify_flags+0x3c/0x6c)
[28055.379657] [<c0844d5c>] (__dev_notify_flags+0x3c/0x6c) from [<c0844dcc>] (dev_change_flags+0x40/0x58)
[28055.379747] [<c0844dcc>] (dev_change_flags+0x40/0x58) from [<c08d2834>] (devinet_ioctl+0x79c/0x8bc)
[28055.379837] [<c08d2834>] (devinet_ioctl+0x79c/0x8bc) from [<c08d3488>] (inet_ioctl+0x1c0/0x1d0)
[28055.379928] [<c08d3488>] (inet_ioctl+0x1c0/0x1d0) from [<c082d7f0>] (sock_ioctl+0x80/0x248)
[28055.379982] [<c082d7f0>] (sock_ioctl+0x80/0x248) from [<c0275364>] (do_vfs_ioctl+0x94/0x5bc)
[28055.380071] [<c0275364>] (do_vfs_ioctl+0x94/0x5bc) from [<c0275908>] (sys_ioctl+0x7c/0x8c)
[28055.380164] [<c0275908>] (sys_ioctl+0x7c/0x8c) from [<c0107300>] (ret_fast_syscall+0x0/0x30)
[28055.380252] ---[ end trace 920b8b321354f066 ]---
[28061.735021] Watchdog bark! Now = 28061.735014
[28061.735106] Watchdog last pet at 28050.179294
[28061.735245] cpu alive mask from last pet 0-3
[28061.735321] Causing a watchdog bite!

The addrconf_hash_lock should cover both modification of inet6_addr_list and idev->addr_list
to resolve any possible synchronization issue between addrconf_ifdown() and ipv6_add/del_addr().

Bug: 11293746
Change-Id: If263fc375b411bf21eacade0d094bff95939f7fe
Signed-off-by: David C. Park <davidc.park@lge.com>
cpufreq: cpu-boost: Don't register for cpufreq notifiers too early

The cpufreq notifiers should be registered only after all the data
structures used in the notifier callbacks have been initialized. So, move
the cpufreq notifier registration to a later point in the init function.

Change-Id: I043ab5bc0ebb98164c40549fe151a8d801c8c186
Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
Kernel Version: AK.053.GOLD.OPO.CM11
vfs: fix bad hashing of dentries

Josef Bacik found a performance regression between 3.2 and 3.10 and
narrowed it down to commit bfcfaa77bdf0 ("vfs: use 'unsigned long'
accesses for dcache name comparison and hashing"). He reports:

 "The test case is essentially

      for (i = 0; i < 1000000; i++)
              mkdir("a$i");

  On xfs on a fio card this goes at about 20k dir/sec with 3.2, and 12k
  dir/sec with 3.10.  This is because we spend waaaaay more time in
  __d_lookup on 3.10 than in 3.2.

  The new hashing function for strings is suboptimal for <
  sizeof(unsigned long) string names (and hell even > sizeof(unsigned
  long) string names that I've tested).  I broke out the old hashing
  function and the new one into a userspace helper to get real numbers
  and this is what I'm getting:

      Old hash table had 1000000 entries, 0 dupes, 0 max dupes
      New hash table had 12628 entries, 987372 dupes, 900 max dupes
      We had 11400 buckets with a p50 of 30 dupes, p90 of 240 dupes, p99 of 567 dupes for the new hash

  My test does the hash, and then does the d_hash into a integer pointer
  array the same size as the dentry hash table on my system, and then
  just increments the value at the address we got to see how many
  entries we overlap with.

  As you can see the old hash function ended up with all 1 million
  entries in their own bucket, whereas the new one they are only
  distributed among ~12.5k buckets, which is why we're using so much
  more CPU in __d_lookup".

The reason for this hash regression is two-fold:

 - On 64-bit architectures the down-mixing of the original 64-bit
   word-at-a-time hash into the final 32-bit hash value is very
   simplistic and suboptimal, and just adds the two 32-bit parts
   together.

   In particular, because there is no bit shuffling and the mixing
   boundary is also a byte boundary, similar character patterns in the
   low and high word easily end up just canceling each other out.

 - the old byte-at-a-time hash mixed each byte into the final hash as it
   hashed the path component name, resulting in the low bits of the hash
   generally being a good source of hash data.  That is not true for the
   word-at-a-time case, and the hash data is distributed among all the
   bits.

The fix is the same in both cases: do a better job of mixing the bits up
and using as much of the hash data as possible.  We already have the
"hash_32|64()" functions to do that.

Reported-by: Josef Bacik <jbacik@fb.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Chris Mason <clm@fb.com>
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>