sorear changed the topic of #riscv to: RISC-V instruction set architecture | https://riscv.org | Logs: https://libera.irclog.whitequark.org/riscv | Matrix: #riscv:catircservices.org
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<sorear> Wish I had something to test on so I could compare it to the gather-free version I came up with
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<mps> anyone tried kernel 6.8-rc1 on visionfive v1?
<mps> I've got this error 'mmc0: error -110 whilst initialising SD card'
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<Esmil> mps: remember to set CONFIG_NONPORTABLE=y and CONFIG_ERRATA_STARFIVE_JH7100=y for the vf1
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<mps> Esmil: I've found whilst initialising SD card'
<mps> oh sorry
<Esmil> yes, and if you don't enable those nothing is handling the non-coherent nature of the mmc dma and it will read/write broken data
<mps> Esmil: I've found CONFIG_NONPORTABLE in `make nconfig` but can't find CONFIG_ERRATA_STARFIVE_JH7100
<Esmil> git describe --contains 64fc984a8a54163a5c44e15a54b574a2c5564d8f says it should be in v6.8-rc1, so maybe you're missing a dependency
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<mps> hm, help in 'make nconfig' shows 'Depends on: ARCH_STARFIVE [=y] && !DMA_DIRECT_REMAP [=y] && NONPORTABLE [=y]' and I have these enabled
<Esmil> yeah, so you need to disable those
<mps> oh, !DMA_DIRECT_REMAP
<Esmil> yeah, s/those/DMA_DIRECT_REMAP/
<mps> ah, also CONFIG_RISCV_ISA_ZICBOM must be =n
<mps> Esmil: thanks
<Esmil> mps: np. plain v6.8-rc1 should boot from the sd-card, but full ethernet support still needs some patches on the mailing list
<Esmil> wifi might work though
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<another|> wi
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<mps> Esmil: with above changes 6.8-rc1 boots fine on vf1. also wifi works
<Esmil> mps: sweet :)
<mps> thank you for great work
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<Esmil> mps: thanks, but don't forget Cristian who has taken up the mantle upstreaming ethernet support. i hope he'll continue with usb support afterwards
<mps> ah sorry, don't know who is Cristian but anyway thanks to all for great works. Esmil: I see you as frontmen
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<unlord> so there is no vwmul.wx
<unlord> am I supposed to use vsext.vf2 first?
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<courmisch> so you want 2*SEW = 2*SEW * scalar ?
<courmisch> that's just regular vmul.vx with doubled SEW
<courmisch> or maybe that's not what you want, but that's why vwmul.wx does not exist. It would be the same as vmul.vx
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<unlord> courmisch: yeah, I realize you are right
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