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2020-04-14media: coda: mark last capture bufferPhilipp Zabel
If a JPEG decoding application queues the last capture and output buffers, issues a decoder stop command after the decoding is already done, and then dequeues the last capture buffer, it is not marked as last. Detect this condition in the decoder stop command and mark the last buffer on the capture done list. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14objtool: Fix CONFIG_UBSAN_TRAP unreachable warningsJosh Poimboeuf
CONFIG_UBSAN_TRAP causes GCC to emit a UD2 whenever it encounters an unreachable code path. This includes __builtin_unreachable(). Because the BUG() macro uses __builtin_unreachable() after it emits its own UD2, this results in a double UD2. In this case objtool rightfully detects that the second UD2 is unreachable: init/main.o: warning: objtool: repair_env_string()+0x1c8: unreachable instruction We weren't able to figure out a way to get rid of the double UD2s, so just silence the warning. Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/6653ad73c6b59c049211bd7c11ed3809c20ee9f5.1585761021.git.jpoimboe@redhat.com
2020-04-14media: coda: split marking last meta into helper functionPhilipp Zabel
Split marking the last metadata entry into a helper function to simplify coda_decoder_cmd. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: coda: jpeg: add CODA960 JPEG decoder supportPhilipp Zabel
This patch adds JPEG decoding support for CODA960, handling the JPEG hardware directly. A separate JPEG decoder video device is created due to the separate hardware unit and different supported pixel formats. While the hardware can not change subsampling on the fly, it can decode 4:2:2 subsampled JPEG images into YUV422P. [m.felsch@pengutronix.de: fix qsequence counting by explicitly checking for the !use_bit case] [hverkuil-cisco@xs4all.nl: fix 'warning: missing braces around initializer'] [mchehab+huawei@kernel.org: fix 'BRACES: Unbalanced braces around else statement'] Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: add v4l2 JPEG helpersPhilipp Zabel
Add helpers for JPEG header parsing. They allow both scanning for marker segment positions and later parsing the segments individually, as required by s5p-jpeg, as well as parsing all headers in one go, as required by coda-vpu. The frame header is always parsed, as basically all decoders are interested in width, height, and number of components. For convenience, the JPEG chroma subsampling factors are decoded into a v4l2_jpeg_chroma_subsampling enum. Only baseline and extended sequential DCT encoded JPEGs with 8-bit or 12-bit precision with up to four components are supported. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: coda: round up decoded buffer size for all codecsPhilipp Zabel
The BIT decoders always write 16x16 macroblocks. Align stride and height to avoid spilling luma data into the top of the chroma planes. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: v4l2-common: Add BGR666 to v4l2_format_infoDafna Hirschfeld
Add V4L2_PIX_FMT_BGR666 to the format table. Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: doc-rst: in the RGB formats table add '-' in undefined bitsDafna Hirschfeld
In the table of the RGB formats, add an explicit '-' signs to cells that contain undefined bits. This makes it more clear how many bits and bytes are used for each format. Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: imx.rst: Add example media graphsSteve Longerbeam
Add the media graph topologies for the i.MX6Q SabreSD and SabreAuto. This makes it easier to understand the topology and follow the entity descriptions in the following sections. Also clarify that the SabreSD and SabreLite media pipeline config examples are for the i.MX6Q boards. Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: v4l2-common: change the pixel_enc of V4L2_PIX_FMT_GREY to YUVDafna Hirschfeld
V4L2_PIX_FMT_GREY format is Ycbcr format without the color data, therefore its pixel_enc should set to V4L2_PIXEL_ENC_YUV. Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: usb: pvrusb2: convert to use i2c_new_client_device()Wolfram Sang
Move away from the deprecated API. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Mike Isely <isely@pobox.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: usb: hdpvr: convert to use i2c_new_client_device()Wolfram Sang
Move away from the deprecated API and return the shiny new ERRPTR where useful. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: usb: cx231xx: convert to use i2c_new_client_device()Wolfram Sang
Move away from the deprecated API and make use of the fact that unregistering devices is NULL- and ERR_PTR-safe. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: marvell-ccic: convert to use i2c_new_client_device()Wolfram Sang
Move away from the deprecated API and return the shiny new ERRPTR where useful. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: pci: saa7134: convert to use i2c_new_client_device()Wolfram Sang
Move away from the deprecated API. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: pci: cx88: convert to use i2c_new_client_device()Wolfram Sang
Move away from the deprecated API and make use of the fact that unregistering devices is NULL- and ERR_PTR-safe. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: dt-bindings: rockchip-vpu: Convert bindings to json-schemaEzequiel Garcia
Convert Rockchip VPU (Hantro IP block) codec driver documentation to json-schema. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: hantro: Refactor for V4L2 API spec compliancyEzequiel Garcia
Refactor how S_FMT and TRY_FMT are handled, and also make sure internal initial format and format reset are done properly. The latter is achieved by making sure the same hantro_{set,try}_fmt helpers are called on all paths that set the format (which is part of the driver state). This commit removes the following v4l2-compliance warnings: test VIDIOC_G_FMT: OK fail: v4l2-test-formats.cpp(711): Video Capture Multiplanar: TRY_FMT(G_FMT) != G_FMT test VIDIOC_TRY_FMT: FAIL fail: v4l2-test-formats.cpp(1116): Video Capture Multiplanar: S_FMT(G_FMT) != G_FMT test VIDIOC_S_FMT: FAIL Reported-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: hantro: Move H264 motion vector calculation to a helperEzequiel Garcia
Move the extra bytes calculation that are needed for H264 motion vector to a helper. This is just a cosmetic cleanup. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: hantro: Remove unneeded hantro_dec_buf_finishEzequiel Garcia
Since now .buf_prepare takes care of setting the buffer payload size, we can get rid of this, at least for decoders. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: hantro: Use v4l2_m2m_buf_done_and_job_finishEzequiel Garcia
Let the core sort out the nuances of returning buffers to userspace, by using the v4l2_m2m_buf_done_and_job_finish helper. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: hantro: Set buffers' zeroth plane payload in .buf_prepareEzequiel Garcia
Buffers' zeroth plane payload size is calculated at format negotiation time, and so it can be set in .buf_prepare. Keep in mind that, to make this change easier, hantro_buf_prepare is refactored, using the cedrus driver as reference. This results in cleaner code as byproduct. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: v4l2-mem2mem: return CAPTURE buffer firstEzequiel Garcia
When the request API is used, typically an OUTPUT (src) buffer will be part of a request. A userspace process will be typically blocked, waiting on the request file descriptor. Returning the OUTPUT (src) buffer will wake-up such processes, who will immediately attempt to dequeue the CAPTURE buffer, only to find it's still unavailable. Therefore, change v4l2_m2m_buf_done_and_job_finish returning the CAPTURE (dst) buffer first, to avoid signalling the request file descriptor prematurely, i.e. before the CAPTURE buffer is done. When the request API is not used, this change should have no impact. Tested-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14Revert "media: Kconfig: better support hybrid TV devices"Mauro Carvalho Chehab
Changing from "depends on" to "select" may cause some side-effects. This patch is not ready to be merged yet, as it requires some adjustments. So, let's revert it. This reverts commit a3b91d8bd1e034c8ed89d3f55243478af97a0a52. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: get rid of Documentation/media/Mauro Carvalho Chehab
Now that everything got moved, we can get rid of the old media directory. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: add an uAPI chapter for driver-specific stuffMauro Carvalho Chehab
There are some uAPI stuff that are driver-specific. Add them to the main media uAPI body. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: move driver-specific info to driver-apiMauro Carvalho Chehab
Those documents don't really describe the driver API. Instead, they contain development-specific information. Yet, as the main index file describes the content of it as: "how specific kernel subsystems work from the point of view of a kernel developer" It seems to be the better fit. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: move user-facing docs to the admin guideMauro Carvalho Chehab
Most of the driver-specific documentation is meant to help users of the media subsystem. Move them to the admin-guide. It should be noticed, however, that several of those files are outdated and will require further work in order to make them useful again. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: move fourcc file to the uAPI documentMauro Carvalho Chehab
This file gives a hint about how fourcc should be named. It is on a very weird place, as such kind of thing belongs to the uAPI guide. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: kAPI docs: move them to driver-apiMauro Carvalho Chehab
All those documents describe the media driver API. So, move them to the right place within the Kernel documentation. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: move uAPI book to userspace-api/mediaMauro Carvalho Chehab
Since 2017, there is an space reserved for userspace API, created by changeset 1d596dee3862 ("docs: Create a user-space API guide"). As the media subsystem was one of the first subsystems to use Sphinx, until this patch, we were keeping things on a separate place. Let's just use the new location, as having all uAPI altogether will likely make things easier for developers. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14drm/i915/gvt: switch to user vfio_group_pin/upin_pagesYan Zhao
substitute vfio_pin_pages() and vfio_unpin_pages() with vfio_group_pin_pages() and vfio_group_unpin_pages(), so that it will not go through looking up, checking, referencing, dereferencing of VFIO group in each call. Signed-off-by: Yan Zhao <yan.y.zhao@intel.com> Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20200313031151.8042-1-yan.y.zhao@intel.com
2020-04-14media: docs: split uAPI info from imx.rstMauro Carvalho Chehab
This file contains both driver develompent documentation and userspace API. Split on two, as they're usually read by different audiences. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14drm/i915/gvt: subsitute kvm_read/write_guest with vfio_dma_rwYan Zhao
As a device model, it is better to read/write guest memory using vfio interface, so that vfio is able to maintain dirty info of device IOVAs. Cc: Kevin Tian <kevin.tian@intel.com> Signed-off-by: Yan Zhao <yan.y.zhao@intel.com> Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20200313031109.7989-1-yan.y.zhao@intel.com
2020-04-14media: docs: split uAPI info from omap3isp.rstMauro Carvalho Chehab
This file contains both driver develompent documentation and userspace API. Split on two, as they're usually read by different audiences. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: split uAPI info from saa7134-devel.rstMauro Carvalho Chehab
This file contains both driver develompent documentation and userspace API. Split on two, as they're usually read by different audiences. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: split uAPI info from fimc.rstMauro Carvalho Chehab
This file contains both driver develompent documentation and userspace API. Split on two, as they're usually read by different audiences. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: split uAPI info from davinci-vpbe.rstMauro Carvalho Chehab
This file contains both driver develompent documentation and userspace API. Split on two, as they're usually read by different audiences. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: cx18-streams.c: fix broken references to docsMauro Carvalho Chehab
There are two places inside this file that points to the cx2341x documentation, with was split into two. Looking at changeset dcc0ef88209a ("V4L/DVB (10442): cx18: Fixes for enforcing when Encoder Raw VBI params can be set") with added those comments, it was originally pointing to: Documentation/video4linux/cx2341x/fw-encoder-api.txt Well, the firmware details went to Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: split cx2341x.rst into different audiencesMauro Carvalho Chehab
This file contains both driver develompent documentation (basically, firmware documentation) and IVTV-specific documentation about VBI and raw formats, focused on uAPI development. Split on two, as they're usually read by different audiences. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: split development info from cx88.rstMauro Carvalho Chehab
This file contains both admin and development stuff. Split on two, as they're usually read by different audiences. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: split development info from bttv.rstMauro Carvalho Chehab
This file contains both admin and development stuff. Split on two, as they're usually read by different audiences. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: split vimc.rst into devel and admin partsMauro Carvalho Chehab
The vimc driver has some kerneldoc markups, plus admin info. Split it into two files. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: split meye.rst into admin and uAPI docsMauro Carvalho Chehab
Instead of placing both info from admin PoV and uAPI at the same place, split into two separate documents. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: split ci.rst into uAPI and user guide docsMauro Carvalho Chehab
The ci.rst file contains two parts: the first one describing how to use the CA high level interface; the second one with uAPI internals. Split this on two separate files, adding the uAPI bits to the DVB ca.rst configuration. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: split cpia2.rst on two filesMauro Carvalho Chehab
In order to be able to better organize the subsystem, split the cpia2 information on two files: one user-facing and another one from Kernel development PoV. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: move soc-camera.rst to stagingMauro Carvalho Chehab
As the entire soc_camera driver is on staging to be removed soon, let's place there its documentation too. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: docs: avermedia.rst: mark a table as suchMauro Carvalho Chehab
There's a table on this file, with aren't using the ReST markups. Fix that. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: Kconfig: don't use visible for device type selectMauro Carvalho Chehab
While making the menu invisible seemed a good idea, there's a drawback: when the menu is not visible, it is not parsing the "default" dependency. So, instead, let's just avoid the items at the menu to be prompted, by using the "prompt ... if" construction. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14media: i2c/Kconfig: reorganize items thereMauro Carvalho Chehab
Right now, there are I2C drivers that don't depend on camera support before and after those. Move the camera support drivers to the end, and add a notice at the "endif", in order to make easier to maintain and to avoid adding extra dependencies at the other i2c/*/Kconfig files. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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