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SubjectRe: [RFC V2 0/6] media: Hantro: Split iMX8MQ VPU into G1 and G2 with blk-ctrl support
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Le 07/12/2021 à 02:54, Adam Ford a écrit :

> Currently, the VPU in the i.MQ8MQ is appearing as one codec, but in
> reality, it's two IP blocks called G1 and G2. There is initialization
> code in VPU code to pull some clocks, resets and other features which
> has been integrated into the vpu-blk-ctrl for the i.MX8M Mini and a
> similar method can be used to make the VPU codec's operate as
> stand-alone cores without having to know the details of each other
> or the quirks unique to the i.MX8MQ, so the remaining code can be
> left more generic.
>
> This series was started by Lucas Stach with one by Benjamin Gaignard.
> Most patches have been modified slightly by me. It's in an RFC state
> because I wasn't sure how to best handle the signatures and wasn't sure
> if I could base it off the branch I did.
>
> Since the g-streamer and media trees are in a constant state of
> change, this series is based on
>
> git://linuxtv.org/hverkuil/media_tree.git for-v5.17e
>
> The downstream code from NXP shows the G1 and G2 clocks running
> at 600MHz, but between the TRM and the datasheet, there is some
> discrepancy. Because the NXP reference code used 600MHz, that is
> what was chosen here. Users who need to adjust their G1 and G2
> clocks can do so in their board files.

Hi Adam,

Thanks for your patches, I have been able to reproduce VP9 results on my side (Fluster 147/303).
In past I have notice spurious errors when using 600MHz clock on HEVC decode but not with 300MHz.

Regards,
Benjamin

>
> Fluster Results:
>
> ./fluster.py run -dGStreamer-H.264-V4L2SL-Gst1.0
> Ran 90/135 tests successfully in 61.966 secs
>
> ./fluster.py run -d GStreamer-VP8-V4L2SL-Gst1.0
> Ran 55/61 tests successfully in 7.660 secs
>
>
> ./fluster.py run -d GStreamer-VP9-V4L2SL-Gst1.0
> Ran 144/303 tests successfully in 162.665 secs
>
> Changes log:
>
> V2: Make vpu-blk-ctrl enable G2 clock when enabling fuses.
> Remove syscon from device tree and binding example
> Added modified nxp,imx8mq-vpu.yaml from Benjamin Gaignard
>
> Adam Ford (2):
> media: hantro: split i.MX8MQ G1 and G2 code
> arm64: dts: imx8mq: Split i.MX8MQ G1 and G2 with vpu-blk-ctrl
>
> Benjamin Gaignard (1):
> dt-bindings: media: nxp,imx8mq-vpu: Update the bindings for G2 support
>
> Lucas Stach (3):
> dt-bindings: power: imx8mq: add defines for VPU blk-ctrl domains
> dt-bindings: soc: add binding for i.MX8MQ VPU blk-ctrl
> soc: imx: imx8m-blk-ctrl: add i.MX8MQ VPU blk-ctrl
>
> .../bindings/media/nxp,imx8mq-vpu.yaml | 58 +++++----
> .../soc/imx/fsl,imx8mq-vpu-blk-ctrl.yaml | 71 +++++++++++
> arch/arm64/boot/dts/freescale/imx8mq.dtsi | 69 ++++++----
> drivers/soc/imx/imx8m-blk-ctrl.c | 68 +++++++++-
> drivers/staging/media/hantro/hantro_drv.c | 4 +-
> drivers/staging/media/hantro/hantro_hw.h | 2 +-
> drivers/staging/media/hantro/imx8m_vpu_hw.c | 119 +++---------------
> include/dt-bindings/power/imx8mq-power.h | 3 +
> 8 files changed, 237 insertions(+), 157 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/soc/imx/fsl,imx8mq-vpu-blk-ctrl.yaml
>
>
> base-commit: d1888b0bfd2ddef2e8a81505ffa200b92cc32e0c

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