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

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Date:   Thu, 2 Dec 2021 06:29:23 -0600
From:   Adam Ford <aford173@...il.com>
To:     linux-media <linux-media@...r.kernel.org>
Cc:     Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
        Tim Harvey <tharvey@...eworks.com>,
        Nicolas Dufresne <nicolas@...fresne.ca>,
        Adam Ford-BE <aford@...conembedded.com>,
        hverkuil-cisco@...all.nl, Rob Herring <robh+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        devicetree <devicetree@...r.kernel.org>,
        arm-soc <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "open list:HANTRO VPU CODEC DRIVER" 
        <linux-rockchip@...ts.infradead.org>,
        "open list:STAGING SUBSYSTEM" <linux-staging@...ts.linux.dev>
Subject: Re: [RFC V3 0/2] arm64: imx8mm: Enable Hantro VPUs

On Wed, Dec 1, 2021 at 10:17 PM Adam Ford <aford173@...il.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
>