Re: [RFC V3 0/2] arm64: imx8mm: Enable Hantro VPUs

Adam Ford
2021-12-02T12:36:48Z

On Wed, Dec 1, 2021 at 10:17 PM Adam Ford <aford173@gmail.com> wrote:
>
> The i.MX8M has two Hantro video decoders, called G1 and G2 which appear
> to be related to the video decoders used on the i.MX8MQ, but because of
> how the Mini handles the power domains, the VPU driver does not need to
> handle all the functions, so a new compatible flag is required.
>
> V3 is rebased from git://linuxtv.org/hverkuil/media_tree.git for-v5.17c
> This branch has support for VP9.
>
> I set cma=512M, but this may not be enough memory as some tests appeard to run out of memory
>
> V3 of this series has several changes:
>
> Update imx8m_vpu_hw to add missing 'reg' reference names for G2 and include references to VP9
> Update device tree to remove IMX8MQ_VPU_RESET, remove some duplicate vpu clock parenting
> Fix missing reg-names from vpu_g2 node.
> Apply patch [1] to manage the power domains powering down.
> [1] - https://lore.kernel.org/linux-arm-kernel/20211016210547.171717-1-marex@denx.de/t/
>
> With the above, the following Fluster scores are produced:
>
> G1:
> ./fluster.py run -dGStreamer-H.264-V4L2SL-Gst1.0
> Ran 90/135 tests successfully in 74.406 secs
>
> ./fluster.py run -d GStreamer-VP8-V4L2SL-Gst1.0
> Ran 55/61 tests successfully in 8.080 secs
>
> G2:
> ./fluster.py run -d GStreamer-VP9-V4L2SL-Gst1.0
> Ran 127/303 tests successfully in 203.873 secs
>
> Fluster and G-Streamer were both built from their respective git repos using their respective master/main branches.
>

I should note, that both interrupts appear to be triggering.

# cat /proc/interrupts |grep codec
57: 13442 0 0 0 GICv3 39 Level
38300000.video-codec
58: 7815 0 0 0 GICv3 40 Level
38310000.video-codec

>
> Adam Ford (2):
> media: hantro: Add support for i.MX8M Mini
> arm64: dts: imx8mm: Enable VPU-G1 and VPU-G2
>
> arch/arm64/boot/dts/freescale/imx8mm.dtsi | 41 +++++++++++++
> drivers/staging/media/hantro/hantro_drv.c | 2 +
> drivers/staging/media/hantro/hantro_hw.h | 2 +
> drivers/staging/media/hantro/imx8m_vpu_hw.c | 65 +++++++++++++++++++++
> 4 files changed, 110 insertions(+)
>
> --
> 2.32.0