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-rw-r--r--arch/mips/include/asm/mach-loongson64/irq.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/mips/include/asm/mach-loongson64/irq.h b/arch/mips/include/asm/mach-loongson64/irq.h
index f5e362f79701..28b1d942a724 100644
--- a/arch/mips/include/asm/mach-loongson64/irq.h
+++ b/arch/mips/include/asm/mach-loongson64/irq.h
@@ -7,7 +7,8 @@
/* cpu core interrupt numbers */
#define NR_IRQS_LEGACY 16
#define NR_MIPS_CPU_IRQS 8
-#define NR_IRQS (NR_IRQS_LEGACY + NR_MIPS_CPU_IRQS + 256)
+#define NR_MAX_CHAINED_IRQS 40 /* Chained IRQs means those not directly used by devices */
+#define NR_IRQS (NR_IRQS_LEGACY + NR_MIPS_CPU_IRQS + NR_MAX_CHAINED_IRQS + 256)
#define MIPS_CPU_IRQ_BASE NR_IRQS_LEGACY