media: uapi: Add VP9 stateless decoder controls

Add the VP9 stateless decoder controls plus the documentation that goes
with it.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Co-developed-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Co-developed-by: Daniel Almeida <daniel.almeida@collabora.com>
Signed-off-by: Daniel Almeida <daniel.almeida@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

6 files changed, 620 insertions, 0 deletions

diff --git a/Documentation/userspace-api/media/v4l/biblio.rst b/Documentation/userspace-api/media/v4l/biblio.rst
index 7b8e6738ff9e..9cd18c153d19 100644
--- a/Documentation/userspace-api/media/v4l/biblio.rst
+++ b/Documentation/userspace-api/media/v4l/biblio.rst
@@ -417,3 +417,13 @@ VP8
 :title:     RFC 6386: "VP8 Data Format and Decoding Guide"
 
 :author:    J. Bankoski et al.
+
+.. _vp9:
+
+VP9
+===
+
+
+:title:     VP9 Bitstream & Decoding Process Specification
+
+:author:    Adrian Grange (Google), Peter de Rivaz (Argon Design), Jonathan Hunt (Argon Design)
diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
index 72f5e85b4f34..cc080c4257d0 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
@@ -1458,3 +1458,576 @@ FWHT Flags
 .. raw:: latex
 
     \normalsize
+
+.. _v4l2-codec-stateless-vp9:
+
+``V4L2_CID_STATELESS_VP9_COMPRESSED_HDR (struct)``
+    Stores VP9 probabilities updates as parsed from the current compressed frame
+    header. A value of zero in an array element means no update of the relevant
+    probability. Motion vector-related updates contain a new value or zero. All
+    other updates contain values translated with inv_map_table[] (see 6.3.5 in
+    :ref:`vp9`).
+
+.. c:type:: v4l2_ctrl_vp9_compressed_hdr
+
+.. tabularcolumns:: |p{1cm}|p{4.8cm}|p{11.4cm}|
+
+.. cssclass:: longtable
+
+.. flat-table:: struct v4l2_ctrl_vp9_compressed_hdr
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - __u8
+      - ``tx_mode``
+      - Specifies the TX mode. See :ref:`TX Mode <vp9_tx_mode>` for more details.
+    * - __u8
+      - ``tx8[2][1]``
+      - TX 8x8 probabilities delta.
+    * - __u8
+      - ``tx16[2][2]``
+      - TX 16x16 probabilities delta.
+    * - __u8
+      - ``tx32[2][3]``
+      - TX 32x32 probabilities delta.
+    * - __u8
+      - ``coef[4][2][2][6][6][3]``
+      - Coefficient probabilities delta.
+    * - __u8
+      - ``skip[3]``
+      - Skip probabilities delta.
+    * - __u8
+      - ``inter_mode[7][3]``
+      - Inter prediction mode probabilities delta.
+    * - __u8
+      - ``interp_filter[4][2]``
+      - Interpolation filter probabilities delta.
+    * - __u8
+      - ``is_inter[4]``
+      - Is inter-block probabilities delta.
+    * - __u8
+      - ``comp_mode[5]``
+      - Compound prediction mode probabilities delta.
+    * - __u8
+      - ``single_ref[5][2]``
+      - Single reference probabilities delta.
+    * - __u8
+      - ``comp_ref[5]``
+      - Compound reference probabilities delta.
+    * - __u8
+      - ``y_mode[4][9]``
+      - Y prediction mode probabilities delta.
+    * - __u8
+      - ``uv_mode[10][9]``
+      - UV prediction mode probabilities delta.
+    * - __u8
+      - ``partition[16][3]``
+      - Partition probabilities delta.
+    * - __u8
+      - ``mv.joint[3]``
+      - Motion vector joint probabilities delta.
+    * - __u8
+      - ``mv.sign[2]``
+      - Motion vector sign probabilities delta.
+    * - __u8
+      - ``mv.classes[2][10]``
+      - Motion vector class probabilities delta.
+    * - __u8
+      - ``mv.class0_bit[2]``
+      - Motion vector class0 bit probabilities delta.
+    * - __u8
+      - ``mv.bits[2][10]``
+      - Motion vector bits probabilities delta.
+    * - __u8
+      - ``mv.class0_fr[2][2][3]``
+      - Motion vector class0 fractional bit probabilities delta.
+    * - __u8
+      - ``mv.fr[2][3]``
+      - Motion vector fractional bit probabilities delta.
+    * - __u8
+      - ``mv.class0_hp[2]``
+      - Motion vector class0 high precision fractional bit probabilities delta.
+    * - __u8
+      - ``mv.hp[2]``
+      - Motion vector high precision fractional bit probabilities delta.
+
+.. _vp9_tx_mode:
+
+``TX Mode``
+
+.. tabularcolumns:: |p{6.5cm}|p{0.5cm}|p{10.3cm}|
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - ``V4L2_VP9_TX_MODE_ONLY_4X4``
+      - 0
+      - Transform size is 4x4.
+    * - ``V4L2_VP9_TX_MODE_ALLOW_8X8``
+      - 1
+      - Transform size can be up to 8x8.
+    * - ``V4L2_VP9_TX_MODE_ALLOW_16X16``
+      - 2
+      - Transform size can be up to 16x16.
+    * - ``V4L2_VP9_TX_MODE_ALLOW_32X32``
+      - 3
+      - transform size can be up to 32x32.
+    * - ``V4L2_VP9_TX_MODE_SELECT``
+      - 4
+      - Bitstream contains the transform size for each block.
+
+See section '7.3.1 Tx mode semantics' of the :ref:`vp9` specification for more details.
+
+``V4L2_CID_STATELESS_VP9_FRAME (struct)``
+    Specifies the frame parameters for the associated VP9 frame decode request.
+    This includes the necessary parameters for configuring a stateless hardware
+    decoding pipeline for VP9. The bitstream parameters are defined according
+    to :ref:`vp9`.
+
+.. c:type:: v4l2_ctrl_vp9_frame
+
+.. raw:: latex
+
+    \small
+
+.. tabularcolumns:: |p{4.7cm}|p{5.5cm}|p{7.1cm}|
+
+.. cssclass:: longtable
+
+.. flat-table:: struct v4l2_ctrl_vp9_frame
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - struct :c:type:`v4l2_vp9_loop_filter`
+      - ``lf``
+      - Loop filter parameters. See struct :c:type:`v4l2_vp9_loop_filter` for more details.
+    * - struct :c:type:`v4l2_vp9_quantization`
+      - ``quant``
+      - Quantization parameters. See :c:type:`v4l2_vp9_quantization` for more details.
+    * - struct :c:type:`v4l2_vp9_segmentation`
+      - ``seg``
+      - Segmentation parameters. See :c:type:`v4l2_vp9_segmentation` for more details.
+    * - __u32
+      - ``flags``
+      - Combination of V4L2_VP9_FRAME_FLAG_* flags. See :ref:`Frame Flags<vp9_frame_flags>`.
+    * - __u16
+      - ``compressed_header_size``
+      - Compressed header size in bytes.
+    * - __u16
+      - ``uncompressed_header_size``
+      - Uncompressed header size in bytes.
+    * - __u16
+      - ``frame_width_minus_1``
+      - Add 1 to get the frame width expressed in pixels. See section 7.2.3 in :ref:`vp9`.
+    * - __u16
+      - ``frame_height_minus_1``
+      - Add 1 to get the frame height expressed in pixels. See section 7.2.3 in :ref:`vp9`.
+    * - __u16
+      - ``render_width_minus_1``
+      - Add 1 to get the expected render width expressed in pixels. This is
+        not used during the decoding process but might be used by HW scalers to
+        prepare a frame that's ready for scanout. See section 7.2.4 in :ref:`vp9`.
+    * - __u16
+      - render_height_minus_1
+      - Add 1 to get the expected render height expressed in pixels. This is
+        not used during the decoding process but might be used by HW scalers to
+        prepare a frame that's ready for scanout. See section 7.2.4 in :ref:`vp9`.
+    * - __u64
+      - ``last_frame_ts``
+      - "last" reference buffer timestamp.
+	The timestamp refers to the ``timestamp`` field in
+        struct :c:type:`v4l2_buffer`. Use the :c:func:`v4l2_timeval_to_ns()`
+        function to convert the struct :c:type:`timeval` in struct
+        :c:type:`v4l2_buffer` to a __u64.
+    * - __u64
+      - ``golden_frame_ts``
+      - "golden" reference buffer timestamp.
+	The timestamp refers to the ``timestamp`` field in
+        struct :c:type:`v4l2_buffer`. Use the :c:func:`v4l2_timeval_to_ns()`
+        function to convert the struct :c:type:`timeval` in struct
+        :c:type:`v4l2_buffer` to a __u64.
+    * - __u64
+      - ``alt_frame_ts``
+      - "alt" reference buffer timestamp.
+	The timestamp refers to the ``timestamp`` field in
+        struct :c:type:`v4l2_buffer`. Use the :c:func:`v4l2_timeval_to_ns()`
+        function to convert the struct :c:type:`timeval` in struct
+        :c:type:`v4l2_buffer` to a __u64.
+    * - __u8
+      - ``ref_frame_sign_bias``
+      - a bitfield specifying whether the sign bias is set for a given
+        reference frame. See :ref:`Reference Frame Sign Bias<vp9_ref_frame_sign_bias>`
+        for more details.
+    * - __u8
+      - ``reset_frame_context``
+      - specifies whether the frame context should be reset to default values. See
+        :ref:`Reset Frame Context<vp9_reset_frame_context>` for more details.
+    * - __u8
+      - ``frame_context_idx``
+      - Frame context that should be used/updated.
+    * - __u8
+      - ``profile``
+      - VP9 profile. Can be 0, 1, 2 or 3.
+    * - __u8
+      - ``bit_depth``
+      - Component depth in bits. Can be 8, 10 or 12. Note that not all profiles
+        support 10 and/or 12 bits depths.
+    * - __u8
+      - ``interpolation_filter``
+      - Specifies the filter selection used for performing inter prediction. See
+        :ref:`Interpolation Filter<vp9_interpolation_filter>` for more details.
+    * - __u8
+      - ``tile_cols_log2``
+      - Specifies the base 2 logarithm of the width of each tile (where the
+        width is measured in units of 8x8 blocks). Shall be less than or equal
+        to 6.
+    * - __u8
+      - ``tile_rows_log2``
+      - Specifies the base 2 logarithm of the height of each tile (where the
+        height is measured in units of 8x8 blocks).
+    * - __u8
+      - ``reference_mode``
+      - Specifies the type of inter prediction to be used. See
+        :ref:`Reference Mode<vp9_reference_mode>` for more details.
+    * - __u8
+      - ``reserved[7]``
+      - Applications and drivers must set this to zero.
+
+.. raw:: latex
+
+    \normalsize
+
+.. _vp9_frame_flags:
+
+``Frame Flags``
+
+.. tabularcolumns:: |p{10.0cm}|p{1.2cm}|p{6.1cm}|
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - ``V4L2_VP9_FRAME_FLAG_KEY_FRAME``
+      - 0x001
+      - The frame is a key frame.
+    * - ``V4L2_VP9_FRAME_FLAG_SHOW_FRAME``
+      - 0x002
+      - The frame should be displayed.
+    * - ``V4L2_VP9_FRAME_FLAG_ERROR_RESILIENT``
+      - 0x004
+      - The decoding should be error resilient.
+    * - ``V4L2_VP9_FRAME_FLAG_INTRA_ONLY``
+      - 0x008
+      - The frame does not reference other frames.
+    * - ``V4L2_VP9_FRAME_FLAG_ALLOW_HIGH_PREC_MV``
+      - 0x010
+      - The frame can use high precision motion vectors.
+    * - ``V4L2_VP9_FRAME_FLAG_REFRESH_FRAME_CTX``
+      - 0x020
+      - Frame context should be updated after decoding.
+    * - ``V4L2_VP9_FRAME_FLAG_PARALLEL_DEC_MODE``
+      - 0x040
+      - Parallel decoding is used.
+    * - ``V4L2_VP9_FRAME_FLAG_X_SUBSAMPLING``
+      - 0x080
+      - Vertical subsampling is enabled.
+    * - ``V4L2_VP9_FRAME_FLAG_Y_SUBSAMPLING``
+      - 0x100
+      - Horizontal subsampling is enabled.
+    * - ``V4L2_VP9_FRAME_FLAG_COLOR_RANGE_FULL_SWING``
+      - 0x200
+      - The full UV range is used.
+
+.. _vp9_ref_frame_sign_bias:
+
+``Reference Frame Sign Bias``
+
+.. tabularcolumns:: |p{7.0cm}|p{1.2cm}|p{9.1cm}|
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - ``V4L2_VP9_SIGN_BIAS_LAST``
+      - 0x1
+      - Sign bias is set for the last reference frame.
+    * - ``V4L2_VP9_SIGN_BIAS_GOLDEN``
+      - 0x2
+      - Sign bias is set for the golden reference frame.
+    * - ``V4L2_VP9_SIGN_BIAS_ALT``
+      - 0x2
+      - Sign bias is set for the alt reference frame.
+
+.. _vp9_reset_frame_context:
+
+``Reset Frame Context``
+
+.. tabularcolumns:: |p{7.0cm}|p{1.2cm}|p{9.1cm}|
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - ``V4L2_VP9_RESET_FRAME_CTX_NONE``
+      - 0
+      - Do not reset any frame context.
+    * - ``V4L2_VP9_RESET_FRAME_CTX_SPEC``
+      - 1
+      - Reset the frame context pointed to by
+        :c:type:`v4l2_ctrl_vp9_frame`.frame_context_idx.
+    * - ``V4L2_VP9_RESET_FRAME_CTX_ALL``
+      - 2
+      - Reset all frame contexts.
+
+See section '7.2 Uncompressed header semantics' of the :ref:`vp9` specification
+for more details.
+
+.. _vp9_interpolation_filter:
+
+``Interpolation Filter``
+
+.. tabularcolumns:: |p{9.0cm}|p{1.2cm}|p{7.1cm}|
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - ``V4L2_VP9_INTERP_FILTER_EIGHTTAP``
+      - 0
+      - Eight tap filter.
+    * - ``V4L2_VP9_INTERP_FILTER_EIGHTTAP_SMOOTH``
+      - 1
+      - Eight tap smooth filter.
+    * - ``V4L2_VP9_INTERP_FILTER_EIGHTTAP_SHARP``
+      - 2
+      - Eeight tap sharp filter.
+    * - ``V4L2_VP9_INTERP_FILTER_BILINEAR``
+      - 3
+      - Bilinear filter.
+    * - ``V4L2_VP9_INTERP_FILTER_SWITCHABLE``
+      - 4
+      - Filter selection is signaled at the block level.
+
+See section '7.2.7 Interpolation filter semantics' of the :ref:`vp9` specification
+for more details.
+
+.. _vp9_reference_mode:
+
+``Reference Mode``
+
+.. tabularcolumns:: |p{9.6cm}|p{0.5cm}|p{7.2cm}|
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - ``V4L2_VP9_REFERENCE_MODE_SINGLE_REFERENCE``
+      - 0
+      - Indicates that all the inter blocks use only a single reference frame
+        to generate motion compensated prediction.
+    * - ``V4L2_VP9_REFERENCE_MODE_COMPOUND_REFERENCE``
+      - 1
+      - Requires all the inter blocks to use compound mode. Single reference
+        frame prediction is not allowed.
+    * - ``V4L2_VP9_REFERENCE_MODE_SELECT``
+      - 2
+      - Allows each individual inter block to select between single and
+        compound prediction modes.
+
+See section '7.3.6 Frame reference mode semantics' of the :ref:`vp9` specification for more details.
+
+.. c:type:: v4l2_vp9_segmentation
+
+Encodes the quantization parameters. See section '7.2.10 Segmentation
+params syntax' of the :ref:`vp9` specification for more details.
+
+.. tabularcolumns:: |p{0.8cm}|p{5cm}|p{11.4cm}|
+
+.. cssclass:: longtable
+
+.. flat-table:: struct v4l2_vp9_segmentation
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - __u8
+      - ``feature_data[8][4]``
+      - Data attached to each feature. Data entry is only valid if the feature
+        is enabled. The array shall be indexed with segment number as the first dimension
+        (0..7) and one of V4L2_VP9_SEG_* as the second dimension.
+        See :ref:`Segment Feature IDs<vp9_segment_feature>`.
+    * - __u8
+      - ``feature_enabled[8]``
+      - Bitmask defining which features are enabled in each segment. The value for each
+        segment is a combination of V4L2_VP9_SEGMENT_FEATURE_ENABLED(id) values where id is
+        one of V4L2_VP9_SEG_*. See :ref:`Segment Feature IDs<vp9_segment_feature>`.
+    * - __u8
+      - ``tree_probs[7]``
+      - Specifies the probability values to be used when decoding a Segment-ID.
+        See '5.15. Segmentation map' section of :ref:`vp9` for more details.
+    * - __u8
+      - ``pred_probs[3]``
+      - Specifies the probability values to be used when decoding a
+        Predicted-Segment-ID. See '6.4.14. Get segment id syntax'
+        section of :ref:`vp9` for more details.
+    * - __u8
+      - ``flags``
+      - Combination of V4L2_VP9_SEGMENTATION_FLAG_* flags. See
+        :ref:`Segmentation Flags<vp9_segmentation_flags>`.
+    * - __u8
+      - ``reserved[5]``
+      - Applications and drivers must set this to zero.
+
+.. _vp9_segment_feature:
+
+``Segment feature IDs``
+
+.. tabularcolumns:: |p{6.0cm}|p{1cm}|p{10.3cm}|
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - ``V4L2_VP9_SEG_LVL_ALT_Q``
+      - 0
+      - Quantizer segment feature.
+    * - ``V4L2_VP9_SEG_LVL_ALT_L``
+      - 1
+      - Loop filter segment feature.
+    * - ``V4L2_VP9_SEG_LVL_REF_FRAME``
+      - 2
+      - Reference frame segment feature.
+    * - ``V4L2_VP9_SEG_LVL_SKIP``
+      - 3
+      - Skip segment feature.
+    * - ``V4L2_VP9_SEG_LVL_MAX``
+      - 4
+      - Number of segment features.
+
+.. _vp9_segmentation_flags:
+
+``Segmentation Flags``
+
+.. tabularcolumns:: |p{10.6cm}|p{0.8cm}|p{5.9cm}|
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - ``V4L2_VP9_SEGMENTATION_FLAG_ENABLED``
+      - 0x01
+      - Indicates that this frame makes use of the segmentation tool.
+    * - ``V4L2_VP9_SEGMENTATION_FLAG_UPDATE_MAP``
+      - 0x02
+      - Indicates that the segmentation map should be updated during the
+        decoding of this frame.
+    * - ``V4L2_VP9_SEGMENTATION_FLAG_TEMPORAL_UPDATE``
+      - 0x04
+      - Indicates that the updates to the segmentation map are coded
+        relative to the existing segmentation map.
+    * - ``V4L2_VP9_SEGMENTATION_FLAG_UPDATE_DATA``
+      - 0x08
+      - Indicates that new parameters are about to be specified for each
+        segment.
+    * - ``V4L2_VP9_SEGMENTATION_FLAG_ABS_OR_DELTA_UPDATE``
+      - 0x10
+      - Indicates that the segmentation parameters represent the actual values
+        to be used.
+
+.. c:type:: v4l2_vp9_quantization
+
+Encodes the quantization parameters. See section '7.2.9 Quantization params
+syntax' of the VP9 specification for more details.
+
+.. tabularcolumns:: |p{0.8cm}|p{4cm}|p{12.4cm}|
+
+.. cssclass:: longtable
+
+.. flat-table:: struct v4l2_vp9_quantization
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - __u8
+      - ``base_q_idx``
+      - Indicates the base frame qindex.
+    * - __s8
+      - ``delta_q_y_dc``
+      - Indicates the Y DC quantizer relative to base_q_idx.
+    * - __s8
+      - ``delta_q_uv_dc``
+      - Indicates the UV DC quantizer relative to base_q_idx.
+    * - __s8
+      - ``delta_q_uv_ac``
+      - Indicates the UV AC quantizer relative to base_q_idx.
+    * - __u8
+      - ``reserved[4]``
+      - Applications and drivers must set this to zero.
+
+.. c:type:: v4l2_vp9_loop_filter
+
+This structure contains all loop filter related parameters. See sections
+'7.2.8 Loop filter semantics' of the :ref:`vp9` specification for more details.
+
+.. tabularcolumns:: |p{0.8cm}|p{4cm}|p{12.4cm}|
+
+.. cssclass:: longtable
+
+.. flat-table:: struct v4l2_vp9_loop_filter
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - __s8
+      - ``ref_deltas[4]``
+      - Contains the adjustment needed for the filter level based on the chosen
+        reference frame.
+    * - __s8
+      - ``mode_deltas[2]``
+      - Contains the adjustment needed for the filter level based on the chosen
+        mode.
+    * - __u8
+      - ``level``
+      - Indicates the loop filter strength.
+    * - __u8
+      - ``sharpness``
+      - Indicates the sharpness level.
+    * - __u8
+      - ``flags``
+      - Combination of V4L2_VP9_LOOP_FILTER_FLAG_* flags.
+        See :ref:`Loop Filter Flags <vp9_loop_filter_flags>`.
+    * - __u8
+      - ``reserved[7]``
+      - Applications and drivers must set this to zero.
+
+
+.. _vp9_loop_filter_flags:
+
+``Loop Filter Flags``
+
+.. tabularcolumns:: |p{9.6cm}|p{0.5cm}|p{7.2cm}|
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - ``V4L2_VP9_LOOP_FILTER_FLAG_DELTA_ENABLED``
+      - 0x1
+      - When set, the filter level depends on the mode and reference frame used
+        to predict a block.
+    * - ``V4L2_VP9_LOOP_FILTER_FLAG_DELTA_UPDATE``
+      - 0x2
+      - When set, the bitstream contains additional syntax elements that
+        specify which mode and reference frame deltas are to be updated.
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
index 0ede39907ee2..967fc803ef94 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
@@ -172,6 +172,21 @@ Compressed Formats
       - VP9 compressed video frame. The encoder generates one
 	compressed frame per buffer, and the decoder requires one
 	compressed frame per buffer.
+    * .. _V4L2-PIX-FMT-VP9-FRAME:
+
+      - ``V4L2_PIX_FMT_VP9_FRAME``
+      - 'VP9F'
+      - VP9 parsed frame, including the frame header, as extracted from the container.
+	This format is adapted for stateless video decoders that implement a
+	VP9 pipeline with the :ref:`stateless_decoder`.
+	Metadata associated with the frame to decode is required to be passed
+	through the ``V4L2_CID_STATELESS_VP9_FRAME`` and
+	the ``V4L2_CID_STATELESS_VP9_COMPRESSED_HDR`` controls.
+	See the :ref:`associated Codec Control IDs <v4l2-codec-stateless-vp9>`.
+	Exactly one output and one capture buffer must be provided for use with
+	this pixel format. The output buffer must contain the appropriate number
+	of macroblocks to decode a full corresponding frame to the matching
+	capture buffer.
     * .. _V4L2-PIX-FMT-HEVC:
 
       - ``V4L2_PIX_FMT_HEVC``
diff --git a/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst b/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
index fdde0ae6d521..29971a45a2d4 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
@@ -233,6 +233,14 @@ still cause this situation.
       - ``p_mpeg2_quantisation``
       - A pointer to a struct :c:type:`v4l2_ctrl_mpeg2_quantisation`. Valid if this control is
         of type ``V4L2_CTRL_TYPE_MPEG2_QUANTISATION``.
+    * - struct :c:type:`v4l2_ctrl_vp9_compressed_hdr` *
+      - ``p_vp9_compressed_hdr_probs``
+      - A pointer to a struct :c:type:`v4l2_ctrl_vp9_compressed_hdr`. Valid if this
+        control is of type ``V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR``.
+    * - struct :c:type:`v4l2_ctrl_vp9_frame` *
+      - ``p_vp9_frame``
+      - A pointer to a struct :c:type:`v4l2_ctrl_vp9_frame`. Valid if this
+        control is of type ``V4L2_CTRL_TYPE_VP9_FRAME``.
     * - struct :c:type:`v4l2_ctrl_hdr10_cll_info` *
       - ``p_hdr10_cll``
       - A pointer to a struct :c:type:`v4l2_ctrl_hdr10_cll_info`. Valid if this control is
diff --git a/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst b/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst
index 2f491c17dd5d..88f630252d98 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst
@@ -513,6 +513,18 @@ See also the examples in :ref:`control`.
       - n/a
       - A struct :c:type:`v4l2_ctrl_hevc_decode_params`, containing HEVC
 	decoding parameters for stateless video decoders.
+    * - ``V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR``
+      - n/a
+      - n/a
+      - n/a
+      - A struct :c:type:`v4l2_ctrl_vp9_compressed_hdr`, containing VP9
+	probabilities updates for stateless video decoders.
+    * - ``V4L2_CTRL_TYPE_VP9_FRAME``
+      - n/a
+      - n/a
+      - n/a
+      - A struct :c:type:`v4l2_ctrl_vp9_frame`, containing VP9
+	frame decode parameters for stateless video decoders.
 
 .. raw:: latex
 
diff --git a/Documentation/userspace-api/media/videodev2.h.rst.exceptions b/Documentation/userspace-api/media/videodev2.h.rst.exceptions
index eb0b1cd37abd..9cbb7a0c354a 100644
--- a/Documentation/userspace-api/media/videodev2.h.rst.exceptions
+++ b/Documentation/userspace-api/media/videodev2.h.rst.exceptions
@@ -149,6 +149,8 @@ replace symbol V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS :c:type:`v4l2_ctrl_type`
 replace symbol V4L2_CTRL_TYPE_AREA :c:type:`v4l2_ctrl_type`
 replace symbol V4L2_CTRL_TYPE_FWHT_PARAMS :c:type:`v4l2_ctrl_type`
 replace symbol V4L2_CTRL_TYPE_VP8_FRAME :c:type:`v4l2_ctrl_type`
+replace symbol V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR :c:type:`v4l2_ctrl_type`
+replace symbol V4L2_CTRL_TYPE_VP9_FRAME :c:type:`v4l2_ctrl_type`
 replace symbol V4L2_CTRL_TYPE_HDR10_CLL_INFO :c:type:`v4l2_ctrl_type`
 replace symbol V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY :c:type:`v4l2_ctrl_type`