From: Huacai Chen <chenhc@lemote.com>
To: Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
Thomas Gleixner <tglx@linutronix.de>,
Jason Cooper <jason@lakedaemon.net>,
Marc Zyngier <maz@kernel.org>
Cc: linux-mips@vger.kernel.org, Fuxin Zhang <zhangfx@lemote.com>,
Huacai Chen <chenhuacai@gmail.com>,
Jiaxun Yang <jiaxun.yang@flygoat.com>,
Huacai Chen <chenhc@lemote.com>,
stable@vger.kernel.org
Subject: [PATCH 1/3] MIPS: Loongson64: Increase NR_IRQS to 320
Date: Wed, 9 Sep 2020 12:09:10 +0800 [thread overview]
Message-ID: <1599624552-17523-1-git-send-email-chenhc@lemote.com> (raw)
Modernized Loongson64 uses a hierarchical organization for interrupt
controllers (INTCs), all INTC nodes (not only leaf nodes) need some IRQ
numbers. This means 280 (i.e., NR_IRQS_LEGACY + NR_MIPS_CPU_IRQS + 256)
is not enough to represent all interrupts, so let's increase NR_IRQS to
320.
Cc: stable@vger.kernel.org
Signed-off-by: Huacai Chen <chenhc@lemote.com>
---
arch/mips/include/asm/mach-loongson64/irq.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/include/asm/mach-loongson64/irq.h b/arch/mips/include/asm/mach-loongson64/irq.h
index f5e362f7..0da3017 100644
--- a/arch/mips/include/asm/mach-loongson64/irq.h
+++ b/arch/mips/include/asm/mach-loongson64/irq.h
@@ -7,7 +7,7 @@
/* 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_IRQS 320
#define MIPS_CPU_IRQ_BASE NR_IRQS_LEGACY
--
2.7.0
next reply other threads:[~2020-09-09 4:13 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-09 4:09 Huacai Chen [this message]
2020-09-09 4:09 ` [PATCH 2/3] irqchip/loongson-htvec: Fix initial interrupts clearing Huacai Chen
2020-09-09 4:09 ` [PATCH 3/3] irqchip/loongson-pch-pic: Reserve legacy LPC irqs Huacai Chen
2020-09-10 0:51 ` Jiaxun Yang
2020-09-10 1:40 ` Huacai Chen
2020-09-10 10:08 ` Marc Zyngier
2020-09-11 4:13 ` Huacai Chen
2020-09-11 7:50 ` Marc Zyngier
2020-09-11 10:12 ` Huacai Chen
2020-09-10 16:34 ` Sasha Levin
2020-09-11 0:12 ` Huacai Chen
2020-09-10 10:10 ` [PATCH 1/3] MIPS: Loongson64: Increase NR_IRQS to 320 Marc Zyngier
2020-09-11 3:24 ` Huacai Chen
2020-09-11 7:44 ` Marc Zyngier
2020-09-11 8:43 ` Huacai Chen
2020-09-11 9:03 ` Marc Zyngier
2020-09-11 9:14 ` Huacai Chen
2020-09-11 9:23 ` Marc Zyngier
2020-09-11 9:40 ` Huacai Chen
2020-09-10 16:34 ` Sasha Levin
2020-09-11 0:11 ` Huacai Chen
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