perf/arm: Fix armpmu_map_hw_event()

Fix constraint check in armpmu_map_hw_event().

Reported-and-tested-by: Vince Weaver <vincent.weaver@maine.edu>
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Patrick Tjin <pattjin@google.com>
mdp: flo: Set minimum IB value for 4 layers

For 4 layer MDP composition, if the total composed area
doesn't cover the whole screen, there is a potential hole
in our calculation where we don't request enough bandwidth
especially for larger displays such as flo.
Pin the minimum bandwidth to ~1.6G (empirical) to fix this.

Bug: 10954796
Signed-off-by: Naseer Ahmed <naseer@codeaurora.org>
msm: kgsl: Update dispatcher/server-side sync

Refresh the dispatcher/server-side sync code with some general
fixes to functionality, stability and fault tolerance.

Change-Id: Ic0dedbad48161513a2670d3949fccbdbf14b8dff
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Carter Cooper <ccooper@codeaurora.org>
msm: kgsl: Allow sync points to be created on the submitter's context

There are situations where a submitting thread may wish to create a
syncpoint on an already issued timestamp to pause a context until a
previous command has been retired.  Relax the restriction against
submitting a sync point against one's own context and only check to
make sure the user isn't submitting a syncpoint against a future
timestamp (which would be an certain deadlock).

Change-Id: Ic0dedbad883fc228da0d94c8416a88504f5d1377
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
msm: kgsl: consolidate preamble based context switch code

Move logic for handling preamble based context switch
to the core adreno code. This makes it less burdensome
to implement support for newer GPU families that won't
ever support legacy context switching.

Change-Id: Id9ad5936ff91dcdbc9de869baf0d0b9fcf1b5170
Signed-off-by: Jeremy Gebben <jgebben@codeaurora.org>
msm: kgsl: Add IB submission gate for device suspend

Add IB submission gate to stop the system from making requests
while suspend is requested.  This will force users to wait for
the system to resume before making more requests.

Change-Id: I2460ef9b4237b586a31d4cea64b6dd74d30b08d9
Signed-off-by: Carter Cooper <ccooper@codeaurora.org>
msm: kgsl: Do not take active_cnt for events and waittimestamp

In the mists of time it was nessesary to take an active count
for waittimestamp and events because we did not want to run
the risk of suspending while the GPU was active.  Now that we
have the dispatcher we have much better control over the GPU
so the original risk is diminished.

The problem is that holding active_cnt prevents us from going
into nap and suspend and with server-side-sync a lot of the
events we are waiting for might take a very long time before
they even get dispatched on the GPU so we are essentially
keeping the clocks on waiting for other people.

z180 must take active count on its own.

Change-Id: Ic0dedbadcb608115938b198faebe333d19c6a8f6
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
msm: kgsl: always check kgsl_active_count_get() result

Getting an active count can fail if the hardware doesn't
actually wake up. Make active count get functions __mustcheck
to remind people of this and fix existing calls to
handle the error.

Change-Id: I5a0202c824ac7e436b9061da6d8f638e44e8b7f6
Signed-off-by: Jeremy Gebben <jgebben@codeaurora.org>
msm: kgsl: manage active count in adreno_ioctl()

Most of the adreno specific ioctls do not need the hardware
on. The few that do are perfcounter related, it may be
better at some point to optimize them further to shadow
the counters when the hardware is not on rather than
forcing the power on.

Change-Id: I9ea83106e0aaf3d3ac8d261bdec4e4c2e21c4659
Signed-off-by: Jeremy Gebben <jgebben@codeaurora.org>
msm: kgsl: remove KGSL_IOCTL_WAKE from context destruction

Adreno context destruction never needs the hardware on
to destroy the current context.

For z180, always take an active count while destroying.

Since this is the last ioctl to use KGSL_IOCTL_WAKE, remove
it entirely.

Change-Id: I97368c7f3c28f16538cc5f48b802b681d7af96ef
Signed-off-by: Jeremy Gebben <jgebben@codeaurora.org>
msm: kgsl: Run the idle timer while the GPU is not power collapsed

If the GPU is not in its lowest permitted power collapse state,
make sure there is a timer running to get the GPU to that state.

Change-Id: If57aaaf02087036bc4e24725c0cd3de5bc1f1034
Signed-off-by: Lucille Sylvester <lsylvest@codeaurora.org>
msm: kgsl: Update dispatcher/server-side sync

Refresh the dispatcher/server-side sync code with some general
fixes to functionality, stability and fault tolerance.

Change-Id: Ic0dedbad48161513a2670d3949fccbdbf14b8dff
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Carter Cooper <ccooper@codeaurora.org>
msm: kgsl: Allow sync points to be created on the submitter's context

There are situations where a submitting thread may wish to create a
syncpoint on an already issued timestamp to pause a context until a
previous command has been retired.  Relax the restriction against
submitting a sync point against one's own context and only check to
make sure the user isn't submitting a syncpoint against a future
timestamp (which would be an certain deadlock).

Change-Id: Ic0dedbad883fc228da0d94c8416a88504f5d1377
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
msm: kgsl: consolidate preamble based context switch code

Move logic for handling preamble based context switch
to the core adreno code. This makes it less burdensome
to implement support for newer GPU families that won't
ever support legacy context switching.

Change-Id: Id9ad5936ff91dcdbc9de869baf0d0b9fcf1b5170
Signed-off-by: Jeremy Gebben <jgebben@codeaurora.org>
msm: kgsl: Add IB submission gate for device suspend

Add IB submission gate to stop the system from making requests
while suspend is requested.  This will force users to wait for
the system to resume before making more requests.

Change-Id: I2460ef9b4237b586a31d4cea64b6dd74d30b08d9
Signed-off-by: Carter Cooper <ccooper@codeaurora.org>
msm: kgsl: Do not take active_cnt for events and waittimestamp

In the mists of time it was nessesary to take an active count
for waittimestamp and events because we did not want to run
the risk of suspending while the GPU was active.  Now that we
have the dispatcher we have much better control over the GPU
so the original risk is diminished.

The problem is that holding active_cnt prevents us from going
into nap and suspend and with server-side-sync a lot of the
events we are waiting for might take a very long time before
they even get dispatched on the GPU so we are essentially
keeping the clocks on waiting for other people.

z180 must take active count on its own.

Change-Id: Ic0dedbadcb608115938b198faebe333d19c6a8f6
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
msm: kgsl: always check kgsl_active_count_get() result

Getting an active count can fail if the hardware doesn't
actually wake up. Make active count get functions __mustcheck
to remind people of this and fix existing calls to
handle the error.

Change-Id: I5a0202c824ac7e436b9061da6d8f638e44e8b7f6
Signed-off-by: Jeremy Gebben <jgebben@codeaurora.org>
msm: kgsl: manage active count in adreno_ioctl()

Most of the adreno specific ioctls do not need the hardware
on. The few that do are perfcounter related, it may be
better at some point to optimize them further to shadow
the counters when the hardware is not on rather than
forcing the power on.

Change-Id: I9ea83106e0aaf3d3ac8d261bdec4e4c2e21c4659
Signed-off-by: Jeremy Gebben <jgebben@codeaurora.org>
msm: kgsl: remove KGSL_IOCTL_WAKE from context destruction

Adreno context destruction never needs the hardware on
to destroy the current context.

For z180, always take an active count while destroying.

Since this is the last ioctl to use KGSL_IOCTL_WAKE, remove
it entirely.

Change-Id: I97368c7f3c28f16538cc5f48b802b681d7af96ef
Signed-off-by: Jeremy Gebben <jgebben@codeaurora.org>
msm: kgsl: Run the idle timer while the GPU is not power collapsed

If the GPU is not in its lowest permitted power collapse state,
make sure there is a timer running to get the GPU to that state.

Change-Id: If57aaaf02087036bc4e24725c0cd3de5bc1f1034
Signed-off-by: Lucille Sylvester <lsylvest@codeaurora.org>