Re: [PATCH v4 00/12] Intel IPU3 ImgU patchset

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Hi Rajmohan,

On 11/17/2017 03:58 AM, Mani, Rajmohan wrote:
> Hi Sakari and all,
> 
>> -----Original Message-----
>> From: Zhi, Yong
>> Sent: Tuesday, October 17, 2017 8:47 PM
>> To: linux-media@xxxxxxxxxxxxxxx; sakari.ailus@xxxxxxxxxxxxxxx
>> Cc: Zheng, Jian Xu <jian.xu.zheng@xxxxxxxxx>; Mani, Rajmohan
>> <rajmohan.mani@xxxxxxxxx>; Toivonen, Tuukka
>> <tuukka.toivonen@xxxxxxxxx>; Hu, Jerry W <jerry.w.hu@xxxxxxxxx>;
>> arnd@xxxxxxxx; hch@xxxxxx; robin.murphy@xxxxxxx; iommu@lists.linux-
>> foundation.org; Zhi, Yong <yong.zhi@xxxxxxxxx>
>> Subject: [PATCH v4 00/12] Intel IPU3 ImgU patchset
>>
>> This patchset adds support for the Intel IPU3 (Image Processing Unit) ImgU
>> which is essentially a modern memory-to-memory ISP. It implements raw
>> Bayer to YUV image format conversion as well as a large number of other pixel
>> processing algorithms for improving the image quality.
>>
>> Meta data formats are defined for image statistics (3A, i.e. automatic white
>> balance, exposure and focus, histogram and local area contrast
>> enhancement) as well as for the pixel processing algorithm parameters.
>> The documentation for these formats is currently not included in the patchset
>> but will be added in a future version of this set.
>>
> 
> Here is an update on the IPU3 documentation that we are currently working on.
> 
> Image processing in IPU3 relies on the following.
> 
> 1) HW configuration to enable ISP and
> 2) setting customer specific 3A Tuning / Algorithm Parameters to achieve desired image quality. 
> 
> We intend to provide documentation on ImgU driver programming interface to help users of this driver to configure and enable ISP HW to meet their needs.  This documentation will include details on complete V4L2 Kernel driver interface and IO-Control parameters, except for the ISP internal algorithm and its parameters (which is Intel proprietary IP).
> 
> We will also provide an user space library in binary form to help users of this driver, to convert the public 3A tuning parameters to IPU3 algorithm parameters. This tool will be released under NDA to the users of this driver.

So I discussed this situation with Sakari in Prague during the ELCE. I am not
happy with adding a driver to the kernel that needs an NDA to be usable. I can't
agree to that. It's effectively the same as firmware that's only available under
an NDA and we wouldn't accept such drivers either.

There are a few options:

1) Document the ISP parameters and that format they are stored in allowing for
   open source implementations. While this is the ideal, I suspect that this is
   a no-go for Intel.

2) The driver can be used without using these ISP parameters and still achieve
   'OK' quality. I.e., it's usable for basic webcam usage under normal lighting
   conditions. I'm not sure if this is possible at all, though.

3) Make the library available without requiring an NDA.

4) Provide a non-NDA library (ideally open source) that achieves at minimum
   the quality as described in 2: i.e. usable for basic webcam.

5) Other solutions I didn't think of?

I think 4 might be the best option, especially if it is open sourced and just
uses non-IP 3A algorithms. It could even be added to the v4l-utils git repo.

A closed source non-NDA library might also work, but you will need to check
what Mauro thinks about that. My problem is that such libraries tend to be
abandoned after a few years and then bit-rot sets in. An open-source solution
is much easier to maintain in the long term.

Regards,

	Hans

> 
>> The algorithm parameters need to be considered specific to a given frame and
>> typically a large number of these parameters change on frame to frame basis.
>> Additionally, the parameters are highly structured (and not a flat space of
>> independent configuration primitives). They also reflect the data structures
>> used by the firmware and the hardware. On top of that, the algorithms require
>> highly specialized user space to make meaningful use of them. For these
>> reasons it has been chosen video buffers to pass the parameters to the device.
>>
>> On individual patches:
>>
>> The heart of ImgU is the CSS, or Camera Subsystem, which contains the image
>> processors and HW accelerators.
>>
>> The 3A statistics and other firmware parameter computation related functions
>> are implemented in patch 8.
>>
>> All h/w programming related code can be found in patch 9.
>>
>> To access DDR via ImgU's own memory space, IPU3 is also equipped with its
>> own MMU unit, the driver is implemented in patch 2.
>>
>> Currently, the MMU driver has dependency on two exported symbols
>> (iommu_group_ref_get and iommu_group_get_for_dev))to build as ko.
>>
>> Patch 3 uses above IOMMU driver for DMA mem related functions.
>>
>> Patch 5-10 are basically IPU3 CSS specific implementations:
>>
>> 6 and 7 provide some utility functions and manage IPU3 fw download and
>> install.
>>
>> The firmware which is called ipu3-fw.bin can be downloaded from:
>>
>> git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
>> (commit 2c27b0cb02f18c022d8378e0e1abaf8b7ae8188f)
>>
>> Patch 9 and 10 are of the same file, the latter implements interface functions
>> for access fw & hw capabilities defined in patch 8.
>>
>> Patch 11 has a dependency on Sakari's V4L2_BUF_TYPE_META_OUTPUT work:
>>
>> <URL:https://patchwork.kernel.org/patch/9976293/>
>> <URL:https://patchwork.kernel.org/patch/9976295/>
>>
>> Patch 12 uses Kconfig and Makefile created by IPU3 cio2 patch series.
>>
>> Link to user space implementation:
>>
>> <URL:https://chromium.googlesource.com/chromiumos/platform/arc-
>> camera/+/master>
>>
>> Device topology:
>>
>> ./media-ctl -d /dev/media0 -p
>> Media controller API version 4.14.0
>>
>> Media device information
>> ------------------------
>> driver          ipu3-imgu
>> model           ipu3-imgu
>> serial
>> bus info        0000:00:05.0
>> hw revision     0x0
>> driver version  4.14.0
>>
>> Device topology
>> - entity 1: ipu3-imgu:0 (8 pads, 8 links)
>>             type V4L2 subdev subtype Unknown flags 0
>>             device node name /dev/v4l-subdev0
>> 	pad0: Sink
>> 		[fmt:UYVY8_2X8/1920x1080 field:none colorspace:unknown]
>> 		<- "input":0 [ENABLED,IMMUTABLE]
>> 	pad1: Sink
>> 		[fmt:UYVY8_2X8/1920x1080 field:none colorspace:unknown]
>> 		<- "parameters":0 []
>> 	pad2: Source
>> 		[fmt:UYVY8_2X8/1920x1080 field:none colorspace:unknown]
>> 		-> "output":0 []
>> 	pad3: Source
>> 		[fmt:UYVY8_2X8/1920x1080 field:none colorspace:unknown]
>> 		-> "viewfinder":0 []
>> 	pad4: Source
>> 		[fmt:UYVY8_2X8/1920x1080 field:none colorspace:unknown]
>> 		-> "postview":0 []
>> 	pad5: Source
>> 		[fmt:UYVY8_2X8/1920x1080 field:none colorspace:unknown]
>> 		-> "3a stat":0 []
>> 	pad6: Source
>> 		[fmt:UYVY8_2X8/1920x1080 field:none colorspace:unknown]
>> 		-> "dvs stat":0 []
>> 	pad7: Source
>> 		[fmt:UYVY8_2X8/1920x1080 field:none colorspace:unknown]
>> 		-> "lace stat":0 []
>>
>> - entity 12: input (1 pad, 1 link)
>>              type Node subtype V4L flags 0
>>              device node name /dev/video0
>> 	pad0: Source
>> 		-> "ipu3-imgu:0":0 [ENABLED,IMMUTABLE]
>>
>> - entity 18: parameters (1 pad, 1 link)
>>              type Node subtype V4L flags 0
>>              device node name /dev/video1
>> 	pad0: Source
>> 		-> "ipu3-imgu:0":1 []
>>
>> - entity 24: output (1 pad, 1 link)
>>              type Node subtype V4L flags 0
>>              device node name /dev/video2
>> 	pad0: Sink
>> 		<- "ipu3-imgu:0":2 []
>>
>> - entity 30: viewfinder (1 pad, 1 link)
>>              type Node subtype V4L flags 0
>>              device node name /dev/video3
>> 	pad0: Sink
>> 		<- "ipu3-imgu:0":3 []
>>
>> - entity 36: postview (1 pad, 1 link)
>>              type Node subtype V4L flags 0
>>              device node name /dev/video4
>> 	pad0: Sink
>> 		<- "ipu3-imgu:0":4 []
>>
>> - entity 42: 3a stat (1 pad, 1 link)
>>              type Node subtype V4L flags 0
>>              device node name /dev/video5
>> 	pad0: Sink
>> 		<- "ipu3-imgu:0":5 []
>>
>> - entity 48: dvs stat (1 pad, 1 link)
>>              type Node subtype V4L flags 0
>>              device node name /dev/video6
>> 	pad0: Sink
>> 		<- "ipu3-imgu:0":6 []
>>
>> - entity 54: lace stat (1 pad, 1 link)
>>              type Node subtype V4L flags 0
>>              device node name /dev/video7
>> 	pad0: Sink
>> 		<- "ipu3-imgu:0":7 []
>>
>>
>> Sample test results on input and 3A video nodes:
>>
>> localhost # ./v4l2-compliance -d /dev/video0
>> v4l2-compliance SHA   : f71ba5a1779ddb6a5a59562504dcf4fabf5c1de1
>>
>> Driver Info:
>> 	Driver name   : ipu3-imgu:0
>> 	Card type     : ipu3-imgu
>> 	Bus info      : PCI:input
>> 	Driver version: 4.14.0
>> 	Capabilities  : 0x84202000
>> 		Video Output Multiplanar
>> 		Streaming
>> 		Extended Pix Format
>> 		Device Capabilities
>> 	Device Caps   : 0x04202000
>> 		Video Output Multiplanar
>> 		Streaming
>> 		Extended Pix Format
>>
>> Compliance test for device /dev/video0 (not using libv4l2):
>>
>> Required ioctls:
>> 	test VIDIOC_QUERYCAP: OK
>>
>> Allow for multiple opens:
>> 	test second video open: OK
>> 	test VIDIOC_QUERYCAP: OK
>> 	test VIDIOC_G/S_PRIORITY: OK
>> 	test for unlimited opens: OK
>>
>> Debug ioctls:
>> 	test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported)
>> 	test VIDIOC_LOG_STATUS: OK (Not Supported)
>>
>> Input ioctls:
>> 	test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
>> 	test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
>> 	test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
>> 	test VIDIOC_ENUMAUDIO: OK (Not Supported)
>> 	test VIDIOC_G/S/ENUMINPUT: OK (Not Supported)
>> 	test VIDIOC_G/S_AUDIO: OK (Not Supported)
>> 	Inputs: 0 Audio Inputs: 0 Tuners: 0
>>
>> Output ioctls:
>> 	test VIDIOC_G/S_MODULATOR: OK (Not Supported)
>> 	test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
>> 	test VIDIOC_ENUMAUDOUT: OK (Not Supported)
>> 	test VIDIOC_G/S/ENUMOUTPUT: OK
>> 	test VIDIOC_G/S_AUDOUT: OK (Not Supported)
>> 	Outputs: 1 Audio Outputs: 0 Modulators: 0
>>
>> Input/Output configuration ioctls:
>> 	test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
>> 	test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
>> 	test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
>> 	test VIDIOC_G/S_EDID: OK (Not Supported)
>>
>> Test output 0:
>>
>> 	Control ioctls:
>> 		test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK (Not
>> Supported)
>> 		test VIDIOC_QUERYCTRL: OK (Not Supported)
>> 		test VIDIOC_G/S_CTRL: OK (Not Supported)
>> 		test VIDIOC_G/S/TRY_EXT_CTRLS: OK (Not Supported)
>> 		test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK (Not
>> Supported)
>> 		test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
>> 		Standard Controls: 0 Private Controls: 0
>>
>> 	Format ioctls:
>> 		test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK
>> 		test VIDIOC_G/S_PARM: OK (Not Supported)
>> 		test VIDIOC_G_FBUF: OK (Not Supported)
>> 		test VIDIOC_G_FMT: OK
>> 		test VIDIOC_TRY_FMT: OK
>> 		test VIDIOC_S_FMT: OK
>> 		test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
>> 		test Cropping: OK (Not Supported)
>> 		test Composing: OK (Not Supported)
>> 		test Scaling: OK
>>
>> 	Codec ioctls:
>> 		test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
>> 		test VIDIOC_G_ENC_INDEX: OK (Not Supported)
>> 		test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported)
>>
>> 	Buffer ioctls:
>> 		test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK
>> 		test VIDIOC_EXPBUF: OK
>>
>> Test output 0:
>>
>>
>> Total: 43, Succeeded: 43, Failed: 0, Warnings: 0
>>
>> localhost # ./v4l2-compliance -d /dev/video5
>> v4l2-compliance SHA   : f71ba5a1779ddb6a5a59562504dcf4fabf5c1de1
>>
>> Driver Info:
>> 	Driver name   : ipu3-imgu:0
>> 	Card type     : ipu3-imgu
>> 	Bus info      : PCI:3a stat
>> 	Driver version: 4.14.0
>> 	Capabilities  : 0x84A00000
>> 		Metadata Capture
>> 		Streaming
>> 		Extended Pix Format
>> 		Device Capabilities
>> 	Device Caps   : 0x04A00000
>> 		Metadata Capture
>> 		Streaming
>> 		Extended Pix Format
>>
>> Compliance test for device /dev/video5 (not using libv4l2):
>>
>> Required ioctls:
>> 	test VIDIOC_QUERYCAP: OK
>>
>> Allow for multiple opens:
>> 	test second video open: OK
>> 	test VIDIOC_QUERYCAP: OK
>> 	test VIDIOC_G/S_PRIORITY: OK
>> 	test for unlimited opens: OK
>>
>> Debug ioctls:
>> 	test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported)
>> 	test VIDIOC_LOG_STATUS: OK (Not Supported)
>>
>> Input ioctls:
>> 	test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
>> 	test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
>> 	test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
>> 	test VIDIOC_ENUMAUDIO: OK (Not Supported)
>> 	test VIDIOC_G/S/ENUMINPUT: OK (Not Supported)
>> 	test VIDIOC_G/S_AUDIO: OK (Not Supported)
>> 	Inputs: 0 Audio Inputs: 0 Tuners: 0
>>
>> Output ioctls:
>> 	test VIDIOC_G/S_MODULATOR: OK (Not Supported)
>> 	test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
>> 	test VIDIOC_ENUMAUDOUT: OK (Not Supported)
>> 	test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported)
>> 	test VIDIOC_G/S_AUDOUT: OK (Not Supported)
>> 	Outputs: 0 Audio Outputs: 0 Modulators: 0
>>
>> Input/Output configuration ioctls:
>> 	test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
>> 	test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
>> 	test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
>> 	test VIDIOC_G/S_EDID: OK (Not Supported)
>>
>> 	Control ioctls:
>> 		test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK (Not
>> Supported)
>> 		test VIDIOC_QUERYCTRL: OK (Not Supported)
>> 		test VIDIOC_G/S_CTRL: OK (Not Supported)
>> 		test VIDIOC_G/S/TRY_EXT_CTRLS: OK (Not Supported)
>> 		test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK (Not
>> Supported)
>> 		test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
>> 		Standard Controls: 0 Private Controls: 0
>>
>> 	Format ioctls:
>> 		test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK
>> 		test VIDIOC_G/S_PARM: OK (Not Supported)
>> 		test VIDIOC_G_FBUF: OK (Not Supported)
>> 		test VIDIOC_G_FMT: OK
>> 		test VIDIOC_TRY_FMT: OK
>> 		test VIDIOC_S_FMT: OK
>> 		test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
>> 		test Cropping: OK (Not Supported)
>> 		test Composing: OK (Not Supported)
>> 		test Scaling: OK (Not Supported)
>>
>> 	Codec ioctls:
>> 		test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
>> 		test VIDIOC_G_ENC_INDEX: OK (Not Supported)
>> 		test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported)
>>
>> 	Buffer ioctls:
>> 		test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK
>> 		test VIDIOC_EXPBUF: OK
>>
>> Test input 0:
>>
>>
>> Total: 43, Succeeded: 43, Failed: 0, Warnings: 0
>>
>> Note: stream test with -f fails as pre-configuration of sub-devs is required.
>>
>> ===========
>> = history =
>> ===========
>>
>> version 4:
>> - Used V4L2_BUF_TYPE_META_OUTPUT for:
>>     - V4L2_META_FMT_IPU3_STAT_PARAMS
>> - Used V4L2_BUF_TYPE_META_CAPTURE for:
>>     - V4L2_META_FMT_IPU3_STAT_3A
>>     - V4L2_META_FMT_IPU3_STAT_DVS
>>     - V4L2_META_FMT_IPU3_STAT_LACE
>> - Supported v4l2 MPLANE format on video nodes.
>> - ipu3-dmamap.c: Removed dma ops and dependencies on IOMMU_DMA lib.
>> - ipu3-mmu.c: Re-structured the driver:
>>   Removed dependencies on linux/dma-iommu.h
>>   Add dev and dma_dev to struct ipu3_mmu to faciliate the dma_map_ops-less
>> way of
>>   binding between mmu, dmamap and ipu3 driver.
>>   Addressed MMU review comments of v3.
>>   Removed cache flush via setting page table as un-cache for improved
>> performance.
>> - intel-ipu3.h: Added __padding qualifier for uapi definitions.
>> - Internal fix: power and performance related issues.
>> - Fixed v4l2-compliance test failures on video and meta nodes.
>> - Fixed build failure for x86 with 32bit config.
>> - Fixed checkpatch.pl errors/warnings/checks.
>>
>> version 3:
>> - ipu3-mmu.c and ipu3-dmamap.c:
>>   Tomasz Figa reworked both drivers and updated related files.
>> - ipu2-abi.h:
>>   update imgu_abi_binary_info ABI to support latest ipu3-fw.bin.
>>   use __packed qualifier on structs suggested by Sakari Ailus.
>> - ipu3-css-fw.c/ipu3-css-fw.h: following fix were suggested by Tomasz Figa:
>>   remove pointer type in firmware blob structs.
>>   fix binary_header array in struct imgu_fw_header.
>>   fix calling ipu3_css_fw_show_binary() before proper checking.
>>   fix logic error for valid length checking of blob name.
>> - ipu3-css-params.c/ipu3_css_scaler_get_exp():
>>   use lib helper suggested by Andy Shevchenko.
>> - ipu3-v4l2.c/ipu3_videoc_querycap():
>>   fill device_caps fix suggested by Hans Verkuil.
>>   add VB2_DMABUF suggested by Tomasz Figa.
>> - ipu3-css.c: increase IMGU freq from 300MHZ to 450MHZ (internal fix)
>> - ipu3.c: use vb2_dma_sg_memop for the time being(internal fix).
>>
>> version 2:
>> This version cherry-picked firmware ABI change and other fix in order to bring
>> the code up-to-date with our internal release.
>>
>> I will go over the review comments in v1 and address them in v3 and future
>> update.
>>
>> version 1:
>> - Initial submission
>>
>> Tomasz Figa (2):
>>   intel-ipu3: Add mmu driver
>>   intel-ipu3: Add IOMMU based dmamap support
>>
>> Yong Zhi (10):
>>   videodev2.h, v4l2-ioctl: add IPU3 meta buffer format
>>   intel-ipu3: Add user space ABI definitions
>>   intel-ipu3: css: tables
>>   intel-ipu3: css: imgu dma buff pool
>>   intel-ipu3: css: firmware management
>>   intel-ipu3: params: compute and program ccs
>>   intel-ipu3: css hardware setup
>>   intel-ipu3: css pipeline
>>   intel-ipu3: Add imgu v4l2 driver
>>   intel-ipu3: imgu top level pci device
>>
>>  drivers/media/pci/intel/ipu3/Kconfig           |   33 +
>>  drivers/media/pci/intel/ipu3/Makefile          |   21 +
>>  drivers/media/pci/intel/ipu3/ipu3-abi.h        | 1579 ++++
>>  drivers/media/pci/intel/ipu3/ipu3-css-fw.c     |  270 +
>>  drivers/media/pci/intel/ipu3/ipu3-css-fw.h     |  206 +
>>  drivers/media/pci/intel/ipu3/ipu3-css-params.c | 3161 ++++++++
>> drivers/media/pci/intel/ipu3/ipu3-css-params.h |  105 +
>>  drivers/media/pci/intel/ipu3/ipu3-css-pool.c   |  132 +
>>  drivers/media/pci/intel/ipu3/ipu3-css-pool.h   |   54 +
>>  drivers/media/pci/intel/ipu3/ipu3-css.c        | 2278 ++++++
>>  drivers/media/pci/intel/ipu3/ipu3-css.h        |  225 +
>>  drivers/media/pci/intel/ipu3/ipu3-dmamap.c     |  342 +
>>  drivers/media/pci/intel/ipu3/ipu3-dmamap.h     |   33 +
>>  drivers/media/pci/intel/ipu3/ipu3-mmu.c        |  580 ++
>>  drivers/media/pci/intel/ipu3/ipu3-mmu.h        |   26 +
>>  drivers/media/pci/intel/ipu3/ipu3-tables.c     | 9621
>> ++++++++++++++++++++++++
>>  drivers/media/pci/intel/ipu3/ipu3-tables.h     |   82 +
>>  drivers/media/pci/intel/ipu3/ipu3-v4l2.c       | 1150 +++
>>  drivers/media/pci/intel/ipu3/ipu3.c            |  882 +++
>>  drivers/media/pci/intel/ipu3/ipu3.h            |  186 +
>>  drivers/media/v4l2-core/v4l2-ioctl.c           |    4 +
>>  include/uapi/linux/intel-ipu3.h                | 2199 ++++++
>>  include/uapi/linux/videodev2.h                 |    6 +
>>  23 files changed, 23175 insertions(+)
>>  create mode 100644 drivers/media/pci/intel/ipu3/ipu3-abi.h
>>  create mode 100644 drivers/media/pci/intel/ipu3/ipu3-css-fw.c
>>  create mode 100644 drivers/media/pci/intel/ipu3/ipu3-css-fw.h
>>  create mode 100644 drivers/media/pci/intel/ipu3/ipu3-css-params.c
>>  create mode 100644 drivers/media/pci/intel/ipu3/ipu3-css-params.h
>>  create mode 100644 drivers/media/pci/intel/ipu3/ipu3-css-pool.c
>>  create mode 100644 drivers/media/pci/intel/ipu3/ipu3-css-pool.h
>>  create mode 100644 drivers/media/pci/intel/ipu3/ipu3-css.c
>>  create mode 100644 drivers/media/pci/intel/ipu3/ipu3-css.h
>>  create mode 100644 drivers/media/pci/intel/ipu3/ipu3-dmamap.c
>>  create mode 100644 drivers/media/pci/intel/ipu3/ipu3-dmamap.h
>>  create mode 100644 drivers/media/pci/intel/ipu3/ipu3-mmu.c
>>  create mode 100644 drivers/media/pci/intel/ipu3/ipu3-mmu.h
>>  create mode 100644 drivers/media/pci/intel/ipu3/ipu3-tables.c
>>  create mode 100644 drivers/media/pci/intel/ipu3/ipu3-tables.h
>>  create mode 100644 drivers/media/pci/intel/ipu3/ipu3-v4l2.c
>>  create mode 100644 drivers/media/pci/intel/ipu3/ipu3.c
>>  create mode 100644 drivers/media/pci/intel/ipu3/ipu3.h
>>  create mode 100644 include/uapi/linux/intel-ipu3.h
>>
>> --
>> 2.7.4
> 




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