Upcoming ARM v9 product with 45 TOPS NPU

nyanmisaka · January 17, 2025, 3:58am

That is correct. The VPU IP comes from ARM China, codename is Linlon.

Some RISC-V boards use similar but lower-end VPU models. For example

kendryte/k230_sdk/blob/main/src/little/linux/drivers/media/platform/canaan-vpu/Kconfig

config VPU_CANAAN
	tristate "Linlon VPU support."
	depends on VIDEO_DEV
	depends on COMMON_CLK && HAS_DMA
	select VIDEO_V4L2_SUBDEV_API
	select VIDEOBUF2_DMA_CONTIG
	select V4L_MEM2MEM_DRIVERS
	select V4L2_FWNODE
	select VIDEOBUF2_DMA_SG
	default y
	help
	  This enables support for the Linlon VPU family.

config VPU_CANAAN_FTRACE
	depends on VPU_CANAAN
	bool "Send kernel space logs to ftrace."
	default n
	help
		Send kernel space logs to ftrace.

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github.com

ruyisdk/linux-xuantie-kernel/blob/linux-6.6.36/drivers/media/platform/canaan/vpu/Kconfig

config VPU_CANAAN
	tristate "Linlon VPU support."
	depends on VIDEO_DEV
	depends on COMMON_CLK && HAS_DMA
	select VIDEO_V4L2_SUBDEV_API
	select VIDEOBUF2_DMA_CONTIG
	select V4L_MEM2MEM_DRIVERS
	select V4L2_FWNODE
	select VIDEOBUF2_DMA_SG
	default y
	help
	  This is a v4l2 driver for Canaan video codec.
	  Canaan video codec is video decoder and encoder hardware unit.
	  It accelerates video decoder and encoder operations, such as h264, hevc,
	  jpeg formats.
	  To compile this driver as a module choose m here.

config VPU_CANAAN_FTRACE
	depends on VPU_CANAAN
	bool "Send kernel space logs to ftrace."

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github.com

TeddyNight/linux-6.1/blob/bl-v1.0.y/drivers/media/platform/spacemit/vpu_k1x/Kconfig

config VIDEO_LINLON_K1X
	tristate "Linlon VPU support."
	depends on VIDEO_DEV && SOC_SPACEMIT_K1X
#	depends on VIDEO_V4L2
	select VIDEOBUF2_VMALLOC
	select VIDEOBUF2_CORE
	select DMA_SHARED_BUFFER
	select VIDEOBUF2_MEMOPS
	select VIDEOBUF2_DMA_SG
	default n
	help
	  This enables support for the Linlon VPU family.

config VIDEO_LINLON_FTRACE_K1X
	depends on VIDEO_LINLON_K1X
	bool "Send kernel space logs to ftrace."
	default n
	help
	  Send kernel space logs to ftrace.

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hrw · January 20, 2025, 8:50pm

I wonder about one thing. License…

Linux kernel is GPLv2. So sources should be provided with binaries.

Last week Radxa shown binary kernel images. OK, I do not have a board yet so you may say “license does not apply”, but what if I order a board?

Will board come with storage media containing sources? Or URL to download them? Or will it be provided already online?

You proudly wrote “World’s first Open Source ARM V9 Motherboard” in the presentation so I ask.

Salvador · January 20, 2025, 5:12pm

Considering i didnt get a shipping confirmation from ALLNET it means it will ship at the end of feb at the earliest?

Vladimir_Smirnov · January 31, 2025, 11:53pm

OK, I do not have a board yet so you may say “license does not apply”, but what if I order a board?

By the letter of GPLv2, if you’ve downloaded binaries or were given binaries, you can ask for the source code, and it should be provided upon request within reasonable timeframe (which is sort of a problem but AFAIR in most of the world reasonable = 30 days)