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authorMauro Carvalho Chehab <mchehab@kernel.org>2022-03-07 17:36:23 +0100
committerMauro Carvalho Chehab <mchehab@kernel.org>2022-03-07 17:36:35 +0100
commit92ec1a5c275acf8ec9999b7969a14745def5a8da (patch)
treed412e7c85523f3110db3df2f03e385b8c53bdd13 /Documentation
parent12fdba564afd1f80eeaeed55c1c81761addda161 (diff)
parent42356ecbdb69e49cffd0c1df791280965f9f90e1 (diff)
Merge tag 'br-v5.18r' of git://linuxtv.org/hverkuil/media_tree into media_stage
Tag branch * tag 'br-v5.18r' of git://linuxtv.org/hverkuil/media_tree: media: amphion: add amphion vpu entry in Kconfig and Makefile MAINTAINERS: add AMPHION VPU CODEC V4L2 driver entry media: amphion: implement malone decoder rpc interface media: amphion: implement windsor encoder rpc interface media: amphion: add v4l2 m2m vpu decoder stateful driver media: amphion: add v4l2 m2m vpu encoder stateful driver media: amphion: add vpu v4l2 m2m support media: amphion: implement vpu core communication based on mailbox media: amphion: add vpu core driver media: amphion: add amphion vpu device driver media: add nv12m_8l128 and nv12m_10be_8l128 video format. dt-bindings: media: amphion: add amphion video codec bindings Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/media/amphion,vpu.yaml180
-rw-r--r--Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst28
2 files changed, 205 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/media/amphion,vpu.yaml b/Documentation/devicetree/bindings/media/amphion,vpu.yaml
new file mode 100644
index 000000000000..a9d80eaeeeb6
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/amphion,vpu.yaml
@@ -0,0 +1,180 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/amphion,vpu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amphion VPU codec IP
+
+maintainers:
+ - Ming Qian <ming.qian@nxp.com>
+ - Shijie Qin <shijie.qin@nxp.com>
+
+description: |-
+ The Amphion MXC video encoder(Windsor) and decoder(Malone) accelerators present
+ on NXP i.MX8Q SoCs.
+
+properties:
+ $nodename:
+ pattern: "^vpu@[0-9a-f]+$"
+
+ compatible:
+ items:
+ - enum:
+ - nxp,imx8qm-vpu
+ - nxp,imx8qxp-vpu
+
+ reg:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ ranges: true
+
+patternProperties:
+ "^mailbox@[0-9a-f]+$":
+ description:
+ Each vpu encoder or decoder correspond a MU, which used for communication
+ between driver and firmware. Implement via mailbox on driver.
+ $ref: ../mailbox/fsl,mu.yaml#
+
+
+ "^vpu_core@[0-9a-f]+$":
+ description:
+ Each core correspond a decoder or encoder, need to configure them
+ separately. NXP i.MX8QM SoC has one decoder and two encoder, i.MX8QXP SoC
+ has one decoder and one encoder.
+ type: object
+
+ properties:
+ compatible:
+ items:
+ - enum:
+ - nxp,imx8q-vpu-decoder
+ - nxp,imx8q-vpu-encoder
+
+ reg:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ mbox-names:
+ items:
+ - const: tx0
+ - const: tx1
+ - const: rx
+
+ mboxes:
+ description:
+ List of phandle of 2 MU channels for tx, 1 MU channel for rx.
+ maxItems: 3
+
+ memory-region:
+ description:
+ Phandle to the reserved memory nodes to be associated with the
+ remoteproc device. The reserved memory nodes should be carveout nodes,
+ and should be defined as per the bindings in
+ Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
+ items:
+ - description: region reserved for firmware image sections.
+ - description: region used for RPC shared memory between firmware and
+ driver.
+
+ required:
+ - compatible
+ - reg
+ - power-domains
+ - mbox-names
+ - mboxes
+ - memory-region
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ # Device node example for i.MX8QM platform:
+ - |
+ #include <dt-bindings/firmware/imx/rsrc.h>
+
+ vpu: vpu@2c000000 {
+ compatible = "nxp,imx8qm-vpu";
+ ranges = <0x2c000000 0x2c000000 0x2000000>;
+ reg = <0x2c000000 0x1000000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ power-domains = <&pd IMX_SC_R_VPU>;
+
+ mu_m0: mailbox@2d000000 {
+ compatible = "fsl,imx6sx-mu";
+ reg = <0x2d000000 0x20000>;
+ interrupts = <0 472 4>;
+ #mbox-cells = <2>;
+ power-domains = <&pd IMX_SC_R_VPU_MU_0>;
+ };
+
+ mu1_m0: mailbox@2d020000 {
+ compatible = "fsl,imx6sx-mu";
+ reg = <0x2d020000 0x20000>;
+ interrupts = <0 473 4>;
+ #mbox-cells = <2>;
+ power-domains = <&pd IMX_SC_R_VPU_MU_1>;
+ };
+
+ mu2_m0: mailbox@2d040000 {
+ compatible = "fsl,imx6sx-mu";
+ reg = <0x2d040000 0x20000>;
+ interrupts = <0 474 4>;
+ #mbox-cells = <2>;
+ power-domains = <&pd IMX_SC_R_VPU_MU_2>;
+ };
+
+ vpu_core0: vpu_core@2d080000 {
+ compatible = "nxp,imx8q-vpu-decoder";
+ reg = <0x2d080000 0x10000>;
+ power-domains = <&pd IMX_SC_R_VPU_DEC_0>;
+ mbox-names = "tx0", "tx1", "rx";
+ mboxes = <&mu_m0 0 0>,
+ <&mu_m0 0 1>,
+ <&mu_m0 1 0>;
+ memory-region = <&decoder_boot>, <&decoder_rpc>;
+ };
+
+ vpu_core1: vpu_core@2d090000 {
+ compatible = "nxp,imx8q-vpu-encoder";
+ reg = <0x2d090000 0x10000>;
+ power-domains = <&pd IMX_SC_R_VPU_ENC_0>;
+ mbox-names = "tx0", "tx1", "rx";
+ mboxes = <&mu1_m0 0 0>,
+ <&mu1_m0 0 1>,
+ <&mu1_m0 1 0>;
+ memory-region = <&encoder1_boot>, <&encoder1_rpc>;
+ };
+
+ vpu_core2: vpu_core@2d0a0000 {
+ reg = <0x2d0a0000 0x10000>;
+ compatible = "nxp,imx8q-vpu-encoder";
+ power-domains = <&pd IMX_SC_R_VPU_ENC_1>;
+ mbox-names = "tx0", "tx1", "rx";
+ mboxes = <&mu2_m0 0 0>,
+ <&mu2_m0 0 1>,
+ <&mu2_m0 1 0>;
+ memory-region = <&encoder2_boot>, <&encoder2_rpc>;
+ };
+ };
+
+...
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst b/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
index 9a969f662595..cc3e4b5791c5 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
@@ -257,6 +257,8 @@ of the luma plane.
.. _V4L2-PIX-FMT-NV12-4L4:
.. _V4L2-PIX-FMT-NV12-16L16:
.. _V4L2-PIX-FMT-NV12-32L32:
+.. _V4L2_PIX_FMT_NV12M_8L128:
+.. _V4L2_PIX_FMT_NV12M_10BE_8L128:
Tiled NV12
----------
@@ -281,21 +283,41 @@ If the vertical resolution is an odd number of tiles, the last row of
tiles is stored in linear order. The layouts of the luma and chroma
planes are identical.
-``V4L2_PIX_FMT_NV12_4L4`` stores pixel in 4x4 tiles, and stores
+``V4L2_PIX_FMT_NV12_4L4`` stores pixels in 4x4 tiles, and stores
tiles linearly in memory. The line stride and image height must be
aligned to a multiple of 4. The layouts of the luma and chroma planes are
identical.
-``V4L2_PIX_FMT_NV12_16L16`` stores pixel in 16x16 tiles, and stores
+``V4L2_PIX_FMT_NV12_16L16`` stores pixels in 16x16 tiles, and stores
tiles linearly in memory. The line stride and image height must be
aligned to a multiple of 16. The layouts of the luma and chroma planes are
identical.
-``V4L2_PIX_FMT_NV12_32L32`` stores pixel in 32x32 tiles, and stores
+``V4L2_PIX_FMT_NV12_32L32`` stores pixels in 32x32 tiles, and stores
tiles linearly in memory. The line stride and image height must be
aligned to a multiple of 32. The layouts of the luma and chroma planes are
identical.
+``V4L2_PIX_FMT_NV12M_8L128`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores
+pixels in 2D 8x128 tiles, and stores tiles linearly in memory.
+The image height must be aligned to a multiple of 128.
+The layouts of the luma and chroma planes are identical.
+
+``V4L2_PIX_FMT_NV12M_10BE_8L128`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores
+10 bits pixels in 2D 8x128 tiles, and stores tiles linearly in memory.
+the data is arranged in big endian order.
+The image height must be aligned to a multiple of 128.
+The layouts of the luma and chroma planes are identical.
+Note the tile size is 8bytes multiplied by 128 bytes,
+it means that the low bits and high bits of one pixel may be in different tiles.
+The 10 bit pixels are packed, so 5 bytes contain 4 10-bit pixels layout like
+this (for luma):
+byte 0: Y0(bits 9-2)
+byte 1: Y0(bits 1-0) Y1(bits 9-4)
+byte 2: Y1(bits 3-0) Y2(bits 9-6)
+byte 3: Y2(bits 5-0) Y3(bits 9-8)
+byte 4: Y3(bits 7-0)
+
``V4L2_PIX_FMT_MM21`` store luma pixel in 16x32 tiles, and chroma pixels
in 16x16 tiles. The line stride must be aligned to a multiple of 16 and the
image height must be aligned to a multiple of 32. The number of luma and chroma