Revert "PM: wakelock: Abort task freezing if a wake lock is held."

This reverts commit 649c5ec14ad0ed76f09262de5dad19c88801e886.

Change-Id: I171fcccb6b004833e8aeddb8d80ca4eeeeda41b7
msm: rotator: signal timeline when rotator prepare fails.

When rotator prepare fails, timeline is not signalled causing fence
timeout on the rotator release fence. This patch fixes the issue.

Change-Id: I6023393d768dbb1a0a9095bb1822ac504632ed64
Signed-off-by: Vishnuvardhan Prodduturi <vproddut@codeaurora.org>
Signed-off-by: Naseer Ahmed <naseer@codeaurora.org>
msm_fb: display: Add proper check to program video TILE framesize

Since video tile frame size register is single buffered, at the time
of transition from low resolution to high resolution video frame,
previous framesize is configured for a cycle, which avoids iommu
page faults.
This logic is not required if previous video frame of the pipe,
is not TILE format.
Add a check to apply the above logic only when previous video frame
of the pipe is also TILE frame.

Change-Id: I782100ed0a89126ca021c8a80ef9eb6f2fb55dda
Signed-off-by: Mayank Chopra <makchopra@codeaurora.org>
Signed-off-by: Naseer Ahmed <naseer@codeaurora.org>

Conflicts:
	drivers/video/msm/mdp4.h
msm: mdp: Revert changes for delaying commit for tiled video

This reverts commits 3ec662e7079cad581e1b6f13a386059b40fa237a and.
bb3d5cf6e59c86dc619332fad568430c737e7a45.
These commits cause corruption with dynamic resolution changes

Bug: 10192531
Change-Id: Ia4c5e352c9c7005ac164ee38f1caa4a81b418b73
Signed-off-by: Naseer Ahmed <naseer@codeaurora.org>
msm: vidc: estimate min_dpb for smooth streaming mode

In case of smoothstreaming:
[1] get dpb requirement for the firmware
[2] get count in resource resource tracker
Use higher of the above

b/10192531

Signed-off-by: Deepak Verma <dverma@codeaurora.org>
Signed-off-by: Praveen Chavan <pchavan@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>
iommu/msm: check range before mapping.

Make sure iommu_map_range() does not leave a partial
mapping on error if part of the range is already
mapped.

Change-Id: I0ddeb0e0169b579f1efdeca4071fce4ee75a11f8
Signed-off-by: Jeremy Gebben <jgebben@codeaurora.org>
Signed-off-by: Sakshi Agrawal <sakshia@codeaurora.org>
iommu: Make termination of stalled transaction optional

When pagefault happens do not cancel the faulting transaction if
the registered fault handler returns EBUSY error. This way
drivers can control when they want to resume the transaction.

Change-Id: Ia4563da073ab04174803101c3b8ec82b0571850e
Signed-off-by: Shubhraprakash Das <sadas@codeaurora.org>
Signed-off-by: Sakshi Agrawal <sakshia@codeaurora.org>
iommu/core: pass a user-provided token to fault handlers

Sometimes a single IOMMU user may have to deal with several
different IOMMU devices (e.g. remoteproc).

When an IOMMU fault happens, such users have to regain their
context in order to deal with the fault.

Users can't use the private fields of neither the iommu_domain nor
the IOMMU device, because those are already used by the IOMMU core
and low level driver (respectively).

This patch just simply allows users to pass a private token (most
notably their own context pointer) to iommu_set_fault_handler(),
and then makes sure it is provided back to the users whenever
an IOMMU fault happens.

The patch also adopts remoteproc to the new fault handling
interface, but the real functionality using this (recovery of
remote processors) will only be added later in a subsequent patch
set.

Change-Id: Ic04659686e72838a0db518e9303dd037191e3879
Cc: Fernando Guzman Lugo <fernando.lugo@ti.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
[ohaugan@codeaurora.org: Resolved compilation and merge issues]
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>

Conflicts:
	drivers/video/msm/mdss/mdss_mdp.c