From: Michael Tremer <git@ipfire.org>
To: ipfire-scm@lists.ipfire.org
Subject: [git.ipfire.org] IPFire 2.x development tree branch, next, updated. c87cf4153fb27609744213f222c348fa1609ce9e
Date: Thu, 08 Oct 2026 20:13:58 +0000 (UTC) [thread overview]
Message-ID: <4j11RB6tk1z2xQv@people01.haj.ipfire.org> (raw)
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from e753736607d10c88ab403ddc58e9e15d61687d93 (commit)
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- Log -----------------------------------------------------------------
commit c87cf4153fb27609744213f222c348fa1609ce9e
Author: Michael Tremer <michael.tremer@ipfire.org>
Date: Thu Oct 8 20:13:06 2026 +0000
kernel: Enable LSX and LASX on loongarch64
The kernel has been built without support for the Loongson SIMD
Extension (LSX) and the Loongson Advanced SIMD Extension (LASX). It did
not save and restore the vector registers, did not announce them to the
userland and could not use them itself.
Processors that don't have them are not affected, because the kernel
checks at runtime what is there.
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
-----------------------------------------------------------------------
Summary of changes:
config/kernel/kernel.config.loongarch64-ipfire | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Difference in files:
diff --git a/config/kernel/kernel.config.loongarch64-ipfire b/config/kernel/kernel.config.loongarch64-ipfire
index 279bf796e..14acf6805 100644
--- a/config/kernel/kernel.config.loongarch64-ipfire
+++ b/config/kernel/kernel.config.loongarch64-ipfire
@@ -351,7 +351,8 @@ CONFIG_ARCH_FORCE_MAX_ORDER=11
# CONFIG_ARCH_WRITECOMBINE is not set
CONFIG_ARCH_STRICT_ALIGN=y
CONFIG_CPU_HAS_FPU=y
-# CONFIG_CPU_HAS_LSX is not set
+CONFIG_CPU_HAS_LSX=y
+CONFIG_CPU_HAS_LASX=y
# CONFIG_CPU_HAS_LBT is not set
CONFIG_CPU_HAS_PREFETCH=y
CONFIG_ARCH_SUPPORTS_KEXEC=y
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IPFire 2.x development tree
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