Me:
- https://github.com/xen0n
- Member of the Go loong64 porters team (@golang/loong64)
- Tinkers with things for fun
- Linux/LoongArch port reviewer
WÁNG Xuěruì xen0n
xen0n
/ test-page-delta.cc
Created
July 25, 2023 12:11
The verification code behind LLD's getLoongArchPageDelta
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | |
| // Ever wondered how the wicked logic in https://github.com/llvm/llvm-project/blob/6084ee742064cf8/lld/ELF/Arch/LoongArch.cpp#L86-L169 | |
| // got discovered? This is the experiment I've done... | |
| #include <cstdio> | |
| #include <cstdint> | |
| #include <cstdlib> | |
| #include <unistd.h> |
xen0n
/ linux-xor-simd-test.c
Created
July 21, 2023 12:57
Sketching LoongArch SIMD acceleration for Linux XOR ops
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // SPDX-License-Identifier: GPL-2.0-or-later | |
| /* | |
| $ gcc -O3 -o linux-xor-simd-test linux-xor-simd-test.c | |
| $ ./linux-xor-simd-test | |
| ref (size=4096 ) passed 16383 times: 0.005044150 s total, 0.000000307 s per pass, 12687.191 MiB/s | |
| lsx_32b (size=4096 ) passed 16383 times: 0.002663250 s total, 0.000000162 s per pass, 24029.323 MiB/s | |
| lsx_64b (size=4096 ) passed 16383 times: 0.002517970 s total, 0.000000153 s per pass, 25415.749 MiB/s | |
| lsx_128b (size=4096 ) passed 16383 times: 0.002517590 s total, 0.000000153 s per pass, 25419.585 MiB/s | |
| lasx_32b (size=4096 ) passed 16383 times: 0.001935550 s total, 0.000000118 s per pass, 33063.519 MiB/s |
xen0n
/ check-new-world.tiny.s
Last active
March 29, 2024 10:12
Tiny helper checking for LoongArch new world UAPI
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # SPDX-License-Identifier: GPL-2.0-or-later OR MIT | |
| # | |
| # how to build this: | |
| # | |
| # $ as -o check-new-world.tiny.o check-new-world.tiny.s | |
| # $ ld check-new-world.tiny.o -o check-new-world.tiny.tmp | |
| # $ objcopy -O binary --only-section=.blob ./check-new-world.tiny.tmp ./check-new-world.tiny | |
| .section ".blob", "aw", @progbits |
xen0n
/ gopherchina-2023-loong64.md
Last active
June 9, 2023 12:30
GopherChina 2023: loong64 presentation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| package main | |
| import ( | |
| "fmt" | |
| "strings" | |
| ) | |
| func main() { | |
| x, y, z := "7️⃣🐮", "🎁👜🔰🎥🧋🌔🌽🧐🧄🍓🔆📌💜🦔🍻🌲", "🍨🚙🚱🥹📏🐋🧱💈🧯🐕💱🍜" |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # | |
| # Automatically generated file; DO NOT EDIT. | |
| # Linux/mips 4.7.0-ck1 Kernel Configuration | |
| # | |
| # | |
| # Gentoo Linux | |
| # | |
| CONFIG_GENTOO_LINUX=y | |
| CONFIG_GENTOO_LINUX_UDEV=y |
xen0n
/ make-dist.log
Created
December 19, 2016 17:50
Log of `make dist` after build triple filtering
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Finished debug [unoptimized] target(s) in 0.0 secs | |
| Synchronizing submodule url for 'src/compiler-rt' | |
| Synchronizing submodule url for 'src/jemalloc' | |
| Synchronizing submodule url for 'src/liblibc' | |
| Synchronizing submodule url for 'src/llvm' | |
| Synchronizing submodule url for 'src/rt/hoedown' | |
| Synchronizing submodule url for 'src/rust-installer' | |
| HEAD is now at a8fc4c1 Merge pull request #28 from xen0n/preprocessor-firefighting | |
| HEAD is now at e058ca6 Change how the default zone is found | |
| HEAD is now at 0ac39c5 Auto merge of #462 - semarie:openbsd-i686-correct, r=alexcrichton |
xen0n
/ 0001-add-uksm-patch-ported-for-v4.5.patch
Created
June 6, 2016 08:29
[EXPERIMENTAL] UKSM ported to Linux 4.5
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| From 3e9afc3a63c3126ee55df341547319ee4a8ac498 Mon Sep 17 00:00:00 2001 | |
| From: Wang Xuerui <[email protected]> | |
| Date: Mon, 6 Jun 2016 16:20:23 +0800 | |
| Subject: [PATCH] add uksm patch ported for v4.5 | |
| --- | |
| Documentation/vm/00-INDEX | 2 + | |
| Documentation/vm/uksm.txt | 59 + | |
| fs/exec.c | 4 +- | |
| fs/proc/meminfo.c | 6 + |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| failures: | |
| ---- [run-pass] run-pass/issue-28950.rs stdout ---- | |
| error: test run failed! | |
| status: signal: 11 | |
| command: /home/xenon/code/rust/build/x86_64-unknown-linux-gnu/test/run-pass/issue-28950.stage2-x86_64-unknown-linux-gnu | |
| stdout: | |
| ------------------------------------------ |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| --- a/drivers/video/logo/logo_linux_clut224.ppm 2014-06-09 02:19:54.000000000 +0800 | |
| +++ b/drivers/video/logo/logo_linux_clut224.ppm 2014-08-21 20:07:31.729230596 +0800 | |
| @@ -1,5 +1,5 @@ | |
| P3 | |
| -# Standard 224-color Linux logo | |
| +# 224-color Minami Kotori bootup logo for Linux | |
| 80 80 | |
| 255 | |
| 0 0 0 0 0 0 0 0 0 0 0 0 | |
| @@ -11,8 +11,6 @@ |
NewerOlder