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
<heat> how do i force a riscv assembler to use the long form of an instruction?
<heat> instead of c.<whatever>
<heat> *apart from manually encoding it*
<heat> for context, i did ebreak in clang inline assembly and it got automagic'd into c.ebreak
<sorear> bbyoume: the channel topic has links to two different ways to access a log
<sorear> heat: .option push ; .option norvc
<heat> thanks
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<Tenkawa> aurel32: thanks again... worked great
<Tenkawa> cat /proc/mtd | wc -l
<Tenkawa> 5
<deathmist> smaeul: thanks for the links btw, https://lore.kernel.org/linux-riscv/20230615072302.25638-1-nylon.chen@sifive.com/ at least did the trick for now. I'll have to "make V=1" later to see if "-fno-asynchronous-unwind-tables -fno-unwind-tables" is being properly applied to the built modules etc
<deathmist> dunno if a LLVM=1 build makes the difference or it's something else
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<Tenkawa> deathmist: are you using LLVM_IAS=1 or not?
<bbyoume> sorear: oh thx my bad
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<KREYREN> first successful boot of armbian on licheepi 4a ^-^
<muurkha> congratulations, KREYREN!
<KREYREN> took just 17h of non-stop work, 6 hours of sleep and then 4 hours of non-stop work
<KREYREN> :D
<KREYREN> and now more hourst to get all that in armbian without getting banned for submitting huge MRs
<KREYREN> and without getting assassinated by the team of chinese that were working on this thing for 3 weeks and didn't even get it to reliably boot yet~
<muurkha> what were the biggest problems you ran into?
<KREYREN> muurkha, armbian's code quality
<KREYREN> 70% of the time is me trying to decypter the code and trying to understand why did the author wrote it that way only to realize the flawed reasoning and do refactor
<KREYREN> also struggling with booting from the sdcard.. i assume that there is some magic offset for the uboot to be placed at for it to work like Allwinner A64 has
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<deathmist> Tenkawa: indeed, LLVM_IAS=1 is set by default in https://github.com/chimera-linux/cports/blob/master/main/base-kernel/files/chimera-buildkernel.sh#L77 but I can try disabling it as well
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<deathmist> btw I've been seeing "CCACHE: DataError @ 0x00000000.08021FF8" and "CCACHE: DataFail @ 0x00000000.08021FEC" errors for a while near top of dmesg, is this expected?
<deathmist> mainline kernel v6.5 still on VF2
<Esmil> deathmist: yeah, that's expected. that happens on the unmatched too
<bjdooks> I did propose a while ago, updating uboot to clear the cache errors at startup, not sure if it got in or is fixing this
<bjdooks> or if the same should be done for linux too
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<davidlt> deathmist, Esmil, this also happens on FU540.
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<bjdooks> I have a horrible feeling that the patch to do that got rm -rf / by sifive
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<palmer> bjdooks: I'm happy zeroing the errors on boot in Linux (I agree the bootloader should really be doing it, though)
<palmer> or I guess even better, the HW should just reset without errors ;)
<bjdooks> yeah
<bjdooks> not sure if it is an reset issue, or something during loading sets it of
<bjdooks> i've sent a pair of aptches to the uboot list, i've not got my unmatched setup
<bjdooks> and the test one we had has been detroyed by the AC
<bjdooks> or possibly the roof leak
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<palmer> OK, hopefully someone in u-boot land still has one
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<jrtc27> no, but that's exactly what we do :)
<jrtc27> well, we just do the lr/sc
<jrtc27> to get as little unfair performance uplift as possible
<jrtc27> I *did* successfully veto Zvamo using those encodings because I wanted to see this extension exist, so glad to see someone pick it up
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<jrtc27> thanks for the pointer
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<jrtc27> "CHERI sounds extraordinarily expensive if it requires byte-level bounds checking"
* jrtc27 rolls eyes
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<muurkha> ugh
<muurkha> people who don't realize that MMUs intervene in every memory access, amirite?
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<mwette> rookie mode here w/ the VisionFive2 kit. I guess something should go between the 7110 and the fan block; is it one of the pads they provide or do I need to get thermal goo?
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<mwette> nvm: I found a diagram on amazon, thermal tape provided: https://www.amazon.com/dp/B0CFQTNN14
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<KREYREN> deathmist, people actually use chimera linux? O.o
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