Le 08/12/2021 à 11:32, Lucas Stach a écrit :
Am Mittwoch, dem 08.12.2021 um 10:32 +0100 schrieb Benjamin Gaignard:
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.
The results for Fluster HEVC are 77/147 so no regressions :-)
Regards,
Benjamin
The max supported G2 clock frequency is 660MHz but needs a higher
voltage. The maximum supported frequency at the default 0.9V is
550MHz. We should not configure the clocks for the higher than that, as
long as there is no support in the VPU driver to scale the voltage
along with the frequency. Same as with the GPU we should stick to base
frequency levels for the nominal operating mode.
Regards,
Lucas
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
