riscv-gnu-toolchain
openc910
riscv-gnu-toolchain | openc910 | |
---|---|---|
35 | 42 | |
3,121 | 1,040 | |
4.2% | 4.2% | |
8.2 | 1.3 | |
7 days ago | 5 months ago | |
C | Verilog | |
GNU General Public License v3.0 or later | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
riscv-gnu-toolchain
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Is RISC-V ready for HPC? Evaluating the 64-core Sophon SG2042 RISC-V CPU
> no absurdely and grotesquely massive and complex compilers anywhere
Absence of evidence is not evidence of absence, and anyway there's not even an absence: https://github.com/riscv-collab/riscv-gnu-toolchain https://llvm.org/docs/RISCVUsage.html
> feature creeps on computer language syntax nowhere to be found
At least one of us is very confused, and in case it's me, how do language details matter to RISC-V?
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Help trying to build for riscv64gc-unknown-linux-musl
I then looked at the .cargo/config.toml provided by the guide and saw that it wasn't actually statically compiling the code. After a bit of tinkering and building my own toolchain from here, I ended up with this config.toml file:
- GNU toolchain for RISC-V including GCC
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Building a toolchain suitable for compiling V extension code
b) collabriscv - essentially gcc 12.2 + binutils master/2.40 as per https://github.com/riscv-collab/riscv-gnu-toolchain
- How do i specify vendor name while building the GNU toolchain?
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GCC 13 Adds RISC-V T-Head Vendor Extension Collection
Or would it be better to take what is in https://github.com/riscv-collab/riscv-gnu-toolchain which is gcc 12.2 and start from there?
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How to build toolchain with Zbs extension?
I'm not able to build https://github.com/riscv-collab/riscv-gnu-toolchain.git like this:
openc910
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US Government reportedly ponders crimping China's use of RISC-V
> I'm pretty sure that SiFive isn't allowed to sell their RISC-V core designs to any Chinese company already.
The JH7110 SoC from the Chinese firm Starfive uses SiFive's U74 core. Eswin, also Chinese uses SiFive's P550 core in their upcoming EIC7700 SoC.
> All Chinese RISC-V core designs have been proprietary designs thus far.
There is the OpenC910 [1] and OpenXiangShan [2].
[1] https://github.com/T-head-Semi/openc910
- Lichee Console 4A – RISC-V mini laptop: Review, benchmarks and early issues
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Is RISC-V ready for HPC? Evaluating the 64-core Sophon SG2042 RISC-V CPU
Note that the C910 CPU cores used in this chip are in fact open source:
https://github.com/T-head-Semi/openc910
(C920 is just C910 plus RVV draft 0.7.1 vector unit which pretty much no software uses anyway, sadly)
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This CPU is FREE!
The Milk-V Pioneer uses a C910 CPU, which has been open sourced by t-head: https://github.com/T-head-Semi/openc910
- LTT
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China Deploys RISC-V Server in Commercial Cloud
More precisely, a Chinese university assembled a rack containing 48 [1] commercially available SBCs [2], each with a Chinese-designed and made SG2042 SoC with 64 C910 CPU cores. The C910 was designed in China in 2018/19 and open-sourced in October 2021, on Microsoft's github site.
https://github.com/T-head-Semi/openc910
The SG2042 is the most powerful RISC-V SoC available today.
In which direction is the technology transfer going?
[1] or possibly 24 dual-socket boards, shown at the RISC-V Summit China in August
[2] get your own here https://www.crowdsupply.com/milk-v/milk-v-pioneer
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Raspberry Pi receives strategic investment from Arm
For "coming down the pipeline" they're essentially free.
Today, the c910 is an Apache 2, hardware proven out of order core on GitHub here https://github.com/T-head-Semi/openc910 a little slower than an RPi3's core.
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Lichee Pi 4A: Serious RISC-V Desktop Computing [video]
Here is the source code* for the CPU:
https://github.com/T-head-Semi/openc910
* AFAIK they didn't opensource the pre ratification vector extension implementation they ship with the taped out chip.
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Beagleboard BeagleV-Ahead RISC-V brd released
The source RTL for the roughly Arm A72-equivalent cores used in this were open-sourced several years ago.
https://github.com/T-head-Semi/openc910
The same cores are used in the 64 core SG2042 workstation/server SoC.
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ARM’s Cortex A53: Tiny but Important
It's a shame, because it was the best design from ARM; they're now focusing on Cortex-A7x and Cortex-X, which aren't anywhere as power efficient[0].
Meanwhile, their revised Cortex-A57 has been surpassed in performance/power/area by several RISC-V microarchitectures, such as SiFive's U74[1], used in the VisionFive2 and Star64, or even the open source XuanTie C910[2][3].
0. https://www.youtube.com/watch?v=s0ukXDnWlTY
1. https://www.sifive.com/cores/u74
2. https://xrvm.com/cpu-details?id=4056743610438262784
3. https://github.com/T-head-Semi/openc910
What are some alternatives?
riscv-binutils-gdb - RISC-V backports for binutils-gdb. Development is done upstream at the FSF.
riscv-boom - SonicBOOM: The Berkeley Out-of-Order Machine
risc-v-examples - RISC-V examples for GD32V, K210, and QEMU
openc906 - OpenXuantie - OpenC906 Core
rvv-llvm - This repository is outdated, support for RISC-V is now developed in upstream LLVM
XiangShan - Open-source high-performance RISC-V processor
buildroot - Buildroot, making embedded Linux easy. Note that this is not the official repository, but only a mirror. The official Git repository is at http://git.buildroot.net/buildroot/. Do not open issues or file pull requests here.
aosp-riscv - Patches & Script for AOSP to run on Xuantie RISC-V CPU [Moved to: https://github.com/T-head-Semi/riscv-aosp]
freedom-tools - Tools for SiFive's Freedom Platform
seL4 - The seL4 microkernel
xv6-riscv - Xv6 for RISC-V
awesome-riscv - 😎 A curated list of awesome RISC-V implementations