msm: vidc: Add entry to scale buses for True 4k @ 24 fps

We weren't asking for enough bandwidth for 4k (3840x2160) @ 30 fps
sessions because we were missing an entry for True 4k @ 24 fps (which
requires less bandwith).  Now sessions of the former type are mapped to
the right ab-ib values.

Also get rid of some unused macros in msm_vidc_common.c

Change-Id: I40d3f8d079ffba586d96e8042b40bb0648ba7ae2
Signed-off-by: Deva Ramasubramanian <dramasub@codeaurora.org>
ARM: dts: msm: Add new property to specify OCMEM size

OCMEM is required by video hardware to deliver optimal
performance mostly at higher resolutions/fps. For targets
which have low specifications, OCMEM is not needed or not
needed as much as for higher targets. This change adds the
property to dtsi file to specify the size of OCMEM.

Change-Id: I65ae271bc73d302975957727a95461c7388727f6
Signed-off-by: Ashray Kulkarni <ashrayk@codeaurora.org>
Signed-off-by: Vinay Kalia <vkalia@codeaurora.org>
Signed-off-by: Praneeth Paladugu <ppaladug@codeaurora.org>

Conflicts:
	arch/arm/boot/dts/msm8974.dtsi
msm: vidc: Update vb2q buffer sizes

Currenttly is updating vb2q buffer size on CAPTURE port.
only.This change will update the buffer size on OUTPORT port
along with CAPTURE port.

Change-Id: Ieb0a898ae5b012f3bf1a1073d2ddf5ce72647252
CRs-Fixed: 621134
Signed-off-by: Prasad Nallani <pnalla@codeaurora.org>
msm: vidc: change error msg for max sessions condition

When the max sessions condition is reached, the firmware
sends session init to the driver. Change the error message
from 'core is in a bad state' to reflect the actual
behavior.

CRs-fixed: 625684
Change-Id: Iddf7d3fc72c1c2696200789954c1e69fd0419dca
Signed-off-by: Pushkaraj Patil <ppatil@codeaurora.org>
msm: vidc: remove non fatal error messages

V4L2 core fails reqbufs ioctl if file IO is in
progress. This message is non fatal, so avoid
logging it as a error message in the video driver.

Change-Id: Ie5ea22925f9c698c82cfaeb6e77b66cf77e5e866
Signed-off-by: Arun Menon <avmenon@codeaurora.org>

Conflicts:
	drivers/media/platform/msm/vidc/msm_vdec.c
msm: vidc: return EBUSY when hw is overloaded

Component reports hw error to client immediately in
the same thread after stream on failure and blocks
subsequence errors to client. Therefore, the async
v4l2 event "V4L2_EVENT_MSM_VIDC_HW_OVERLOAD" will
be ignored in component.
When loading resource fails because of hw
overload, instead of sending V4l2 event, we are
going to return EBUSY and this return value will
be checked in userspace.

Change-Id: I26b3315afbe4c7cc4be9e740595d1db5153467dc
Signed-off-by: Jia Meng <jmeng@codeaurora.org>

Conflicts:
	drivers/media/platform/msm/vidc/msm_vidc_common.c
msm: vidc: Free OCMEM during power collapse

To disable OCMEM clock during power collapse, video driver
has to free up the allocated OCMEM. This memory will be
re-allocated before bringing venus core out of reset.

CRs-Fixed: 571083
Change-Id: I88f7e771b21046d9817feb17b06b3739f128c434
Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org>

Conflicts:
	drivers/media/platform/msm/vidc/venus_hfi.c
msm: vidc: unprepare clocks during power collapse

If any clock is still prepared (only disabled), apps will
not vote for XO shutdown. Unprepared clocks will remove the
vote and facilitate XO shutdown.
During power collapse, video drivers now disable and
unprepare venus clocks.
There was minimal power savings during internal tests,
but customer reported to have impact of 13mA without
the change.
The change add different clock states. Clock state
transitions with clock api is shown below
====================  clk_prepare_enable()    ==================
|DISABLED_UNPREPARED| ----------------------  |ENABLED_PREPARED|
====================  clk_disable_unprepare() ==================
   ||                                                   ||
   || clk_unprepare() ================    clk_disable() ||
    -----------------|DISABLED_PREPARED| ---------------
      clk_prepare()   ================    clk_enable()

Change-Id: Id23302e359abcdf91c993835c6353fb251c96fe6
CRs-Fixed: 604629
Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org>

Conflicts:
	drivers/media/platform/msm/vidc/venus_hfi.c
msm: vidc: ensure venus clocks are enabled while release buffer

While interframe clock gating, venus clock are gated ON and
OFF based on firmware response. It may happen that venus
clocks are disabled while iommu driver unmaps output buffers.
This may lead to unclocked memory access.
Venus clocks should be enabled while releasing output buffers.

Change-Id: Ib7a04c2d3600ae91a229730e2caffbff9c8353ca
CRs-Fixed: 645657
Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org>

Conflicts:
	drivers/media/platform/msm/vidc/venus_hfi.c
msm: vidc: recover from firmware fatal error

If firmware goes in to bad state, the video driver
should try to restart the firmware, so that subsequent
new video sessions can play fine without error.
Previous to this change, the video driver would
unload the firmware only after all open instances
have been closed by the client. If the client fails
to close any of the open instances, then firmware
would not be unloaded and continue to remain in bad
state. This would fail all new video sessions and could
be overcome only after the device was reset.

Change-Id: Ifadb2ecf6e7021ed60ee3b0992e4d1950f8ca53d
Signed-off-by: Arun Menon <avmenon@codeaurora.org>

Conflicts:
	drivers/media/platform/msm/vidc/venus_hfi.c
msm: vidc: update format during downscaling

When downscaling is enabled, update the port format
parameters based on port type.
Avoid updating the instance property during reconfig event
with sufficient resource. IL Client expects downscaled
parameters rather than reconfig parameters.

CRs-Fixed: 629474
Change-Id: I629a0b78a56806018976f7f82e8c526fef456ec9
Signed-off-by: Pushkaraj Patil <ppatil@codeaurora.org>
msm: vidc: queue output-1 buffers to FW

While seeking, FW returns all the buffers to host.
In multi-stream usecase like downscaling, the o/p
buffers need to be re-queued back to FW.

Change-Id: I5ea8534c06b3e48dadd4d73ab4432a13687a99c1
CRs-Fixed: 631827
Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org>
msm: vidc: Check maximum width capability of Q6

Maximum width capability check is required to take
care of indefinite behavior when a clip having width
more than Q6 capability is played. Also, make the
capability check generic for Q6 and Venus.

CRs-fixed: 626642
Change-Id: Ic10be0ad4434019fea45e7a090b21ba5cf54d9a6
Signed-off-by: Ravi Kiran Vonteddu <rvontedd@codeaurora.org>
msm: vidc: Remove artificial cap of VP8 at 1080p

VP8 encoding or decoding wasn't officially supported at > 1080p
resolutions until now.

Change-Id: Ibc2934c7562643217999a592967f3278c72de563
Signed-off-by: Deva Ramasubramanian <dramasub@codeaurora.org>
CRs-Fixed: 566047

Conflicts:
	drivers/media/platform/msm/vidc/msm_vidc_debug.c
msm: vidc: Fix various decoder downscalar issues

Queue output buffers without extradata to Venus.
Venus is returning UPSCALE_NOT_SUPPORTED error when
output2 size is bigger than output size. This change
suppresses this error as it is not fatal.

Change-Id: I8a3f708092b131400b88828f6c1a684f08b3f18a
Signed-off-by: Praneeth Paladugu <ppaladug@codeaurora.org>
msm: vidc: Query deblocker parameters from cluster

Various fields of h264_db_control were left uninitialised before being
sent to the firmware.  As a result, due to poor luck, the resulting
encoded bitstreams were invalid as the alpha and beta were not in the
acceptable range of [-6, 6].  This commit fills the uninitialised values
with values obtained by querying the cluster.

Change-Id: Ic217d007239bc059302bdcdf2aebad1c9ca88244
Signed-off-by: Deva Ramasubramanian <dramasub@codeaurora.org>
Signed-off-by: Arun Menon <avmenon@codeaurora.org>
msm: vidc: Fix race condition during concurrent sessions

The core->instances list structure is guarded by
mutex core->lock, whenever a new video instance is added
or deleted from the list. However this list was accessed
from certain functions without acquiring the lock, which
resulted in race condition, causing the device to crash.
Also clean up the core locking mechanism.

Change-Id: I6f431bc381d54948611783e19fac853c83a87203
Signed-off-by: Arun Menon <avmenon@codeaurora.org>
msm: vidc: Fix timestamp for EOS buffer

Timestamp for zero filled length FBD is not
being set correctly even if the timestamp from FW
is valid. This causes certain decode usecase
to not exit correctly.

CRs-fixed: 664086
Change-Id: Ieb0f274efa5d94c9294b021e061bca6d9b45de87
Signed-off-by: Sachin Shah <sachins@codeaurora.org>
msm: mdss: synchronize wfd driver iommu mmap/munmap with mdss

Add clocks reference during wfd driver iommu mdp_mmap/mdp_munmap
to ensure iommu is in proper state while wfd driver map/un-map
any buffers.

Change-Id: Id1a24285b81d5047e5e9f002ade9694ea49be59d
Signed-off-by: Pawan Kumar <pavaku@codeaurora.org>

Conflicts:
	drivers/video/msm/mdss/mdss_mdp_wb.c
msm: vidc: rewrite v4l2 cluster construction

V4L2 framework has limitation of not supporting
same control in multiple clusters. Overcome this
limitation by grouping all controls in to one
super cluster.

Change-Id: I974199e1388a1b33ae5e56edd4b0af712eb9babf
Signed-off-by: Arun Menon <avmenon@codeaurora.org>