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(parent: 07d5798) | patch
LoongArch: Add detection for SC.Q support
authorGeorge Guo <dongtai.guo@linux.dev>
Tue, 10 Feb 2026 11:31:06 +0000 (19:31 +0800)
committerHuacai Chen <chenhuacai@loongson.cn>
Tue, 10 Feb 2026 11:31:06 +0000 (19:31 +0800)
commit48543c4283e76d561d11b9955222b1a3054abdb9
tree135086a4193bfacdf59f2ceb3d7a01b380097c88tree
parent07d5798aadfa922af1f81bf7fe4a1746a7e6d184commit | diff
LoongArch: Add detection for SC.Q support

Check the CPUCFG2_SCQ bit to determine if the current CPU supports the
SC.Q instruction.

Reviewed-by: Hengqi Chen <hengqi.chen@gmail.com>
Tested-by: Hengqi Chen <hengqi.chen@gmail.com>
Co-developed-by: Yangyang Lian <lianyangyang@kylinos.cn>
Signed-off-by: Yangyang Lian <lianyangyang@kylinos.cn>
Signed-off-by: George Guo <guodongtai@kylinos.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
arch/loongarch/include/asm/cpu-features.h diff | blob | blame | history
arch/loongarch/include/asm/cpu.h diff | blob | blame | history
arch/loongarch/include/uapi/asm/hwcap.h diff | blob | blame | history
arch/loongarch/kernel/cpu-probe.c diff | blob | blame | history
arch/loongarch/kernel/proc.c diff | blob | blame | history
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