msm:kgsl: Remove NORETRY flag in memory allocations

With NORETRY flag kernel will not try to reclaim memory
incase of memory allocation failures.With NORETRY flag
being removed, kernel makes mutliple attempts in order to make memory
allocation sucessfull, before returning failure.

Change-Id: I7d71954eba723ce6a8a79b63f54bea1e5b6618f1
Signed-off-by: Rajeev Kulkarni <krajeev@codeaurora.org>
radio-tavarua: Handle I2C read/write errors during sleep mode.

Getting read/write errors when the I2C is not resumed from the sleep

Added re-try mechanism to handle during I2C read/write

Change-Id: I5a533b085ccfcda2181a2d5ea792bbb3d187c477
CRs-Fixed: 427937
Signed-off-by: Venkateshwarlu Domakonda <Venkateshwarlu@codeaurora.org>
radio: iris: Add synchronize mechanism to handle multiple command requests

Used mutex to synchronize the command requests.

Change-Id: Ie58b996bbc76b36095020556a2046b7aa5c351fa
CRs-Fixed: 448591
Signed-off-by: Venkateshwarlu Domakonda <Venkateshwarlu@codeaurora.org>
ipv4: fix the rcu race between free_fib_info and ip_route_output_slow

We hit a kernel OOPS.

<3>[23898.789643] BUG: sleeping function called from invalid context at
/data/buildbot/workdir/ics/hardware/intel/linux-2.6/arch/x86/mm/fault.c:1103
<3>[23898.862215] in_atomic(): 0, irqs_disabled(): 0, pid: 10526, name:
Thread-6683
<4>[23898.967805] HSU serial 0000:00:05.1: 0000:00:05.2:HSU serial prevented me
to suspend...
<4>[23899.258526] Pid: 10526, comm: Thread-6683 Tainted: G        W
3.0.8-137685-ge7742f9 #1
<4>[23899.357404] HSU serial 0000:00:05.1: 0000:00:05.2:HSU serial prevented me
to suspend...
<4>[23899.904225] Call Trace:
<4>[23899.989209]  [<c1227f50>] ? pgtable_bad+0x130/0x130
<4>[23900.000416]  [<c1238c2a>] __might_sleep+0x10a/0x110
<4>[23900.007357]  [<c1228021>] do_page_fault+0xd1/0x3c0
<4>[23900.013764]  [<c18e9ba9>] ? restore_all+0xf/0xf
<4>[23900.024024]  [<c17c007b>] ? napi_complete+0x8b/0x690
<4>[23900.029297]  [<c1227f50>] ? pgtable_bad+0x130/0x130
<4>[23900.123739]  [<c1227f50>] ? pgtable_bad+0x130/0x130
<4>[23900.128955]  [<c18ea0c3>] error_code+0x5f/0x64
<4>[23900.133466]  [<c1227f50>] ? pgtable_bad+0x130/0x130
<4>[23900.138450]  [<c17f6298>] ? __ip_route_output_key+0x698/0x7c0
<4>[23900.144312]  [<c17f5f8d>] ? __ip_route_output_key+0x38d/0x7c0
<4>[23900.150730]  [<c17f63df>] ip_route_output_flow+0x1f/0x60
<4>[23900.156261]  [<c181de58>] ip4_datagram_connect+0x188/0x2b0
<4>[23900.161960]  [<c18e981f>] ? _raw_spin_unlock_bh+0x1f/0x30
<4>[23900.167834]  [<c18298d6>] inet_dgram_connect+0x36/0x80
<4>[23900.173224]  [<c14f9e88>] ? _copy_from_user+0x48/0x140
<4>[23900.178817]  [<c17ab9da>] sys_connect+0x9a/0xd0
<4>[23900.183538]  [<c132e93c>] ? alloc_file+0xdc/0x240
<4>[23900.189111]  [<c123925d>] ? sub_preempt_count+0x3d/0x50

Function free_fib_info resets nexthop_nh->nh_dev to NULL before releasing
fi. Other cpu might be accessing fi. Fixing it by delaying the releasing.

With the patch, we ran MTBF testing on Android mobile for 12 hours
and didn't trigger the issue.

Thank Eric for very detailed review/checking the issue.

CRs-fixed: 430941
Change-Id: I14480ff9085a8e13fe43ea14bfa53fb7b77384b3
Signed-off-by: Yanmin Zhang <yanmin_zhang@linux.intel.com>
Signed-off-by: Kun Jiang <kunx.jiang@intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Git-commit: e49cc0da7283088c5e03d475ffe2fdcb24a6d5b1
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Jay Chokshi <jchokshi@codeaurora.org>
msm: display: fix iommu page faults for devices with lcdc panel.

Fetch was happening from non-iommu buffer because of wrong mixer
configuration for lcdc panels.

Change-Id: Ie313ce71ff269108271437f758c0dc37884a240c
Signed-off-by: Sangani Suryanarayana Raju <csuryan@codeaurora.org>
msm: msm_bus: Fix the 64-bit division during interleaving

When interleaving flag is enabled, the bandwidth is divided
between ports. There was an error in the division as the
macro was not correctly updated with the right order of using
bandwidth and port number when 64-bit division function
was used by the bus driver.
Correcting this for fixing the token allocation issues
observed.

CRs-Fixed: 472791
Change-Id: Ie7c7f9557006cbb946eaa9eff4b50771cc60525e
Signed-off-by: Gagan Mac <gmac@codeaurora.org>
Merge "msm: display: fix iommu page faults for devices with lcdc panel."
msm: thermal: Use signed int for temperature

Temperatures could be in negative and negative signed ints may be
incorrectly read as unsigned int.

Change-Id: I817db2756c54816296a700ffcd004a83161f2b95
CRs-Fixed: 441632, 473507
Signed-off-by: Praveen Chidambaram <pchidamb@codeaurora.org>
Merge "ipv4: fix the rcu race between free_fib_info and ip_route_output_slow"
Merge "radio-tavarua: Handle I2C read/write errors during sleep mode."
Merge "radio: iris: Add synchronize mechanism to handle multiple command requests"
Merge "msm: thermal: Use signed int for temperature"
media: dvb: Discard sections TS packets with transport error indicator

Corrupted section data should not be notified to the application,
TS packets holding sections with transport error indicator (TEI)
are discarded.

CRs-Fixed: 473875
Change-Id: I43f500a8cde86ad970360a7f1b50615f16fb7a89
Signed-off-by: Hamad Kadmany <hkadmany@codeaurora.org>
dvb: mpq: Secure demux log level

Add secure demux API allowing to set log level verbosity.
Log level can be set from user-sapce via a debugfs entry.
Default is no logging.

Change-Id: I5cfa4533ade061dd2a0663252cea72779018f91d
Signed-off-by: Gilad Broner <gbroner@codeaurora.org>
Merge "media: dvb: Discard sections TS packets with transport error indicator"
Merge "msm: msm_bus: Fix the 64-bit division during interleaving"
msm: kgsl: Fault tolernace for context with pagefault

If pagefault happened in same global timestamp
as the hang do not attempt replay for fault tolerance.
This is an improvement from previous policy of not
attempting fault tolerance for the context
with pagefault.

CRs-Fixed: 469807
Change-Id: Idc9512b9fab3c9a2bf0b33a7e06f3070075427ba
Signed-off-by: Tarun Karra <tkarra@codeaurora.org>
msm: kgsl: Allocate space in ringbuffer for EOF commands

When userspace passes end of frame (EOF) flag, ringbuffer is
inserted with EOF marker commands. Allocate ringbuffer space
for EOF marker commands.

CRs-Fixed: 469807
Change-Id: I7de8d1b81d358a8d8753ac84fbdceddad27bb17d
Signed-off-by: Tarun Karra <tkarra@codeaurora.org>
msm: kgsl: Add barriers to GPU fault tolerance memory reads

In GPU fault tolerance When reading from memstore add
memory barriers. This ensures memstore reads are
completed and makes GPU fault tolerance code robust.

CRs-Fixed: 469807
Change-Id: Iefb950ae2647eb8ae16bfb9a8d7ee9885636d920
Signed-off-by: Tarun Karra <tkarra@codeaurora.org>
msm: kgsl: Prevent fault tolerance memory free twice

There is a possibility of fault tolerance data to be freed twice
if fault tolerance fails. Do not free the data when the data allocation
fails, take the decision to free the data only at the end of
fault tolerance.

CRs-Fixed: 469807
Change-Id: Ifcc9a75e70440be6471b32d8413f4faa01a9ee47
Signed-off-by: Tarun Karra <tkarra@codeaurora.org>