msm: mdss: implement overlay prepare ioctl

Overlay prepare will allow a full frame with multiple overlays to be
configured at once and perform frame level checks before being pushed to
display. This function guarantees that if the call is successful, the
frame can be displayed successfully on the screen when display commit is
called.

Change-Id: I276b6fe3e0a872a2e93170f3cea1002d3ce0dac9
Signed-off-by: Adrian Salido-Moreno <adrianm@codeaurora.org>
Signed-off-by: Anusha Koduru <kanusha@codeaurora.org>

Conflicts:
	include/linux/msm_mdp.h
msm: display: Add pipe type selection in overlay request

Allow user to specify the type when requesting an overlay pipe.
If field is set the pipe type indication in the flags will be
ignored.
Change-Id: Iee51d24b96c7a2a987dc70a439342e6548dfc8fa
Signed-off-by: Vineet Bajaj <vbajaj@codeaurora.org>
msm: mdss: add retire fence support

Retire fence timeline should follow the actual panel vsync more closely.
For video mode the retire fence can be signaled along with the release
timeline with +1 offset, since this is signaled at vsync.
In case of command mode the panel vsync can be different from buffer
release timeline. To handle the command mode panel vsyncs better, create
a new timeline for the retire fence signaling.

Change-Id: If8a1eb717d733ca215275a8be4f0054091dbc147
Signed-off-by: Adrian Salido-Moreno <adrianm@codeaurora.org>
Signed-off-by: houst0nn <houstonn@gmail.com>

Conflicts:
	drivers/video/msm/mdss/mdss_fb.c
msm: vidc: update max P frames num for encode

Remove the restriction on the max number of
P frame interval.

Change-Id: I637372d7b0d409602df251bad4a135b25514dc95
Signed-off-by: Arun Menon <avmenon@codeaurora.org>
Signed-off-by: houst0nn <houstonn@gmail.com>
msm: vidc: update max P frames num for encode

Remove the restriction on the max number of
P frame interval.

Change-Id: I637372d7b0d409602df251bad4a135b25514dc95
Signed-off-by: Arun Menon <avmenon@codeaurora.org>
Signed-off-by: houst0nn <houstonn@gmail.com>
msm: vidc: add LTR support for video encoder

Enable LTR support for VP8 codec to add robust error resilience.

Change-Id: I3b87c5cdaef836a6d02d5b9fe71b7165b7f13581
Signed-off-by: Ashray Kulkarni <ashrayk@codeaurora.org>
Signed-off-by: houst0nn <houstonn@gmail.com>

Conflicts:
	drivers/media/platform/msm/vidc/hfi_packetization.c
	drivers/media/platform/msm/vidc/vidc_hfi_api.h
	include/linux/videodev2.h

Conflicts:
	drivers/media/platform/msm/vidc/hfi_packetization.c
	drivers/media/platform/msm/vidc/vidc_hfi_api.h
	include/linux/videodev2.h

Signed-off-by: houst0nn <houstonn@gmail.com>
msm: vidc: Add generic LTR mode support

Use generic LTR HFI APIs for h264 and vp8 formats.

Change-Id: I9f307046d7ec6de4eb6d43704686be902356882a
Signed-off-by: Ashray Kulkarni <ashrayk@codeaurora.org>
Signed-off-by: houst0nn <houstonn@gmail.com>
msm: vidc: Add support for MBI extradata

Macro Block Information extradata (if enabled) allows interested
clients to query for metadata about each macroblock.

Change-Id: Icfee32770018338e28ae149e1ccb654f5a48cbec
Signed-off-by: Deva Ramasubramanian <dramasub@codeaurora.org>

Conflicts:
	drivers/media/platform/msm/vidc/vidc_hfi_api.h
	include/linux/videodev2.h
msm: vidc: add control to enable Hierarchical P num layers

This change will enable firmware to perform Hierarchical
video encoding for P frames. Hierarchical video encoding is
used to improve error resilience and temporal scalability.
The encoded frames are logically organized in to multiple
layers with frames in one layer referencing only frames
from lower layers. The lowest layer, i.e. base layer, is
the only exception.

Change-Id: Ie30e6d075b76b3337ec895584cf1f3be9f4bb6c6
Signed-off-by: Arun Menon <avmenon@codeaurora.org>
Signed-off-by: houst0nn <houstonn@gmail.com>
msm: vidc: Provide qmenu for V4L2_CID_MPEG_VIDC_VIDEO_INTRA_REFRESH_MODE

The v4l2 control framework requires a qmenu containing a string
description of each menu item.

Change-Id: Id41fd794a6f7ad8711caf9d072975ad6cabad6f9
Signed-off-by: Deva Ramasubramanian <dramasub@codeaurora.org>
Signed-off-by: houst0nn <houstonn@gmail.com>
msm: vidc: Add description of LTR Extradata

The missing string descriptor caused a mismatch in array sizes
causing the v4l2 control framework make an out of bounds access.

Change-Id: I9a9f64e16ca95163d800702d94528833f5892537
Signed-off-by: Deva Ramasubramanian <dramasub@codeaurora.org>
Signed-off-by: houst0nn <houstonn@gmail.com>
msm: vidc: Query the core on VIDIOC_G_FMT

Previously we only queried the core for buffer requirements in
VIDIOC_REQBUFS, and relied on that information in _G_FMT.  However,
there's no expectation that the client calls _REQBUFS before _G_FMT,
which leads to stale information being returned as part of _G_FMT.

As such, always retreive fresh info from the core for either ioctl.

Change-Id: Ife94343f4bd4f62da7f2bef4266076ceed409bca
Signed-off-by: Deva Ramasubramanian <dramasub@codeaurora.org>
Signed-off-by: houst0nn <houstonn@gmail.com>
msm: vidc: set ctrl to request sequence header for encoder

The encoder depended on a debug variable i.e. ftb_count, to
request firmware to send sequence header. Remove this
dependency and make the request only when the encoder
client requests using the provided set ctrl.

b/11051201

Change-Id: Iac4104c33eef62da553066c736b7adc87834d2ac
Signed-off-by: Arun Menon <avmenon@codeaurora.org>
Signed-off-by: houst0nn <houstonn@gmail.com>
mdss: Notify userspace of changes to blank status

Allow userspace to poll on the blank event to avoid triggering
unnecessary updates, such as when shutting down the device.

CRs-Fixed: 627814
Change-Id: I36bb7845edba14ba0b0ddbe43eaf3d386af2d5f1
Signed-off-by: Naseer Ahmed <naseer@codeaurora.org>
mdss: Add newline to VSYNC timestamp

This makes sure that the userspace correctly interprets the end
of the vsync timestamp.

Change-Id: I66f9939658b6fb7531468429c1ca3e551a4a285c
Signed-off-by: Naseer Ahmed <naseer@codeaurora.org>
msm: kgsl: Report correct GPU frequency in sysfs
msm: kgsl: Export device state to devfreq
PM: devfreq: Fixup device transition and usage statistics

Ignore bogus data during slumber in transition and usage stats that
rendered the output basically useless. Also fix the reported GPU
frequency.
PM: devfreq: Use high priority workqueue

It does not make sense to run kgsl on high and devfreq on regular
priority.
msm: kgsl: Use high priority workqueue