msm: mdp: Fix reserved field usage

An earlier commit(ec5b2f)increased the number of reserved fields
in the kernel standard fb.h header changing the struct size.
This caused issues with userland applications using the corresponding
bionic header. This patch revert the earlier increas in size
and makes corresponding adjustments to the reserved field usage.
A follow up patch will remove usage of reserved fields entirely.

Change-Id: Ibc2c00de71e5a6d2563a8a8a3e0916d15faef32b
Signed-off-by: Naseer Ahmed <naseer@codeaurora.org>
Signed-off-by: Arun Kumar K.R <akumarkr@codeaurora.org>
msm: display: sync point clean up

Remove unused fence input in mdp_display_commit
structure
Use different timeline name for different fb

Change-Id: I4edd335b36dce057ff3e54302af6088a9cc470ec
Signed-off-by: Ken Zhang <kenz@codeaurora.org>
msm: display: increase fence timeout

Increase timeout value to 900ms to allow
gfx engine to render longer.
When sync_fence_wait fails, need not put fence as
it will be handled outside the loop.

Change-Id: Id4caff55c9f99c48e5f87a85d30fe4c8c0cd65e7
Signed-off-by: Ken Zhang <kenz@codeaurora.org>
Signed-off-by: Shruthi Krishna <skrish@codeaurora.org>
msm_fb: Update MDP fence wait behaviour

The current fence wait times out too early in cases where the GPU
is under a heavy workload. Change this behaviour to warn and wait
for a longer time for GPU to complete it's work.

Change-Id: I8b20c22733a77c1aaea4a1fd1e4daaa14b5ec2fd
Signed-off-by: Naseer Ahmed <naseer@codeaurora.org>
msm_fb: display: fix fence fd list be put twice

msm_fb_wait_for_fence() will put fence fd list if sync_fence_wait()
failed. After that same fd list wil be put one more time. This
cause a fd put twice and cause system crash at the time fd
was closed.

Change-Id: If6a358e051c98841e34c23d81098243003ef0836
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
ashmem: avoid deadlock between read and mmap calls

Avoid holding ashmem_mutex across code that can page fault.  Page faults
grab the mmap_sem for the process, which are also held by mmap calls
prior to calling ashmem_mmap, which locks ashmem_mutex.  The reversed
order of locking between the two can deadlock.

The calls that can page fault are read() and the ASHMEM_SET_NAME and
ASHMEM_GET_NAME ioctls.  Move the code that accesses userspace pages
outside the ashmem_mutex.

Bug: 9261835
Change-Id: If1322e981d29c889a56cdc9dfcbc6df2729a45e9
Signed-off-by: Todd Poynor <toddpoynor@google.com>