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| author | Huacai Chen <chenhuacai@loongson.cn> | 2026-04-22 10:45:12 +0300 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2026-04-22 10:45:12 +0300 |
| commit | 02a6a1f9d77a816fbac01de9bfcd0e0914552f2f (patch) | |
| tree | 1a314dc3f41076026cbf3a7d896d10a38df42a73 | |
| parent | a28547576b3b3c95f2261cd5374c1e459f36d9dc (diff) | |
| download | linux-02a6a1f9d77a816fbac01de9bfcd0e0914552f2f.tar.xz | |
LoongArch: Make arch_irq_work_has_interrupt() true only if IPI HW exist
After commit 7c405fb3279b3924 ("rcu: Use an intermediate irq_work to
start process_srcu()"), Loongson-2K0300/2K0500 fail to boot. Because
IRQ_WORK need IPI but Loongson-2K0300/2K0500 don't have IPI HW.
So make arch_irq_work_has_interrupt() return true only if IPI HW exist.
Cc: stable@vger.kernel.org
Reported-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
| -rw-r--r-- | arch/loongarch/include/asm/irq_work.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/loongarch/include/asm/irq_work.h b/arch/loongarch/include/asm/irq_work.h index d63076e9160d..63aee0335d1a 100644 --- a/arch/loongarch/include/asm/irq_work.h +++ b/arch/loongarch/include/asm/irq_work.h @@ -4,7 +4,7 @@ static inline bool arch_irq_work_has_interrupt(void) { - return IS_ENABLED(CONFIG_SMP); + return IS_ENABLED(CONFIG_SMP) && cpu_opt(LOONGARCH_CPU_CSRIPI); } #endif /* _ASM_LOONGARCH_IRQ_WORK_H */ |