I can not find infos about the Vector-extensions ? Is this cpu/board suitable to test the RISC-V Vector extensions ?
thx for any insights..
thx for any insights..
Yes, I'm currently using it to successfully test vector instructions. A blog post is being written, but may take a week or so.
Keep an eye on blog.habets.se, or ping me here on HN in about a week.
We're still very early in the RISC V ecosystem, so most of the processors in production pre-date current standardizations, which requires applications to target specific silicon. To add insult to injury, those individual processors are relatively new, so the dedicated image processing and vector/tensor hardware doesn't have much support yet.
It seems to be the same one as the BananaPi BPI-F3, see: https://www.reddit.com/r/RISCV/comments/1j6c6xz/orange_pi_rv...
The link you posted goes to the exact same board as in the article.
> It's a cheaper Spacemit K1.
> The CPU spec from dtb:
> compatible = "ky,x60", "riscv"; model = "Ky(R) X60"; riscv,isa = "rv64imafdcv"; riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "v", "zicbom", "zicboz", "zicntr", "zicond", "zicsr", "zifencei", "zihintpause", "zihpm", "zfh", "zfhmin", "zba", "zbb", "zbc", "zbs", "zkt", "zvfh", "zvfhmin", "zvkt", "sscofpmf", "sstc", "svinval", "svnapot", "svpbmt";
> It also have a ARM China Linlon v5 VPU and Imagination IMG GPU. The PMIC and UART is same as K1.
> And the ubuntu image from orangepi just use the same BSP kernel/uboot/opensbi from Spacemit's linux-bianbu.
EDIT: okay, looks like the official documentation lists it, but many places I looked didn't. Maybe it wasn't being detected in cpuinfo?