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From 70c33fe0df8d14e40f3ca92ce56a668d66184858 Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@openwrt.org>
Date: Fri, 26 Apr 2013 12:03:15 +0200
Subject: [PATCH 12/14] MIPS: BCM63XX: wire up the second cpu's irq line
---
arch/mips/bcm63xx/irq.c | 50 ++++++++++++++++++++++++++++++++++++++---------
1 file changed, 41 insertions(+), 9 deletions(-)
--- a/arch/mips/bcm63xx/irq.c
+++ b/arch/mips/bcm63xx/irq.c
@@ -363,13 +363,20 @@ static void __internal_irq_mask_##width(
u32 val; \
unsigned reg = (irq / 32) ^ (width/32 - 1); \
unsigned bit = irq & 0x1f; \
- u32 irq_mask_addr = get_irq_mask_addr(0); \
unsigned long flags; \
+ int cpu; \
\
spin_lock_irqsave(&ipic_lock, flags); \
- val = bcm_readl(irq_mask_addr + reg * sizeof(u32)); \
- val &= ~(1 << bit); \
- bcm_writel(val, irq_mask_addr + reg * sizeof(u32)); \
+ for_each_present_cpu(cpu) { \
+ u32 irq_mask_addr = get_irq_mask_addr(cpu); \
+ \
+ if (!irq_mask_addr) \
+ break; \
+ \
+ val = bcm_readl(irq_mask_addr + reg * sizeof(u32)); \
+ val &= ~(1 << bit); \
+ bcm_writel(val, irq_mask_addr + reg * sizeof(u32)); \
+ } \
spin_unlock_irqrestore(&ipic_lock, flags); \
} \
\
@@ -378,13 +385,23 @@ static void __internal_irq_unmask_##widt
u32 val; \
unsigned reg = (irq / 32) ^ (width/32 - 1); \
unsigned bit = irq & 0x1f; \
- u32 irq_mask_addr = get_irq_mask_addr(0); \
unsigned long flags; \
+ int cpu; \
\
spin_lock_irqsave(&ipic_lock, flags); \
- val = bcm_readl(irq_mask_addr + reg * sizeof(u32)); \
- val |= (1 << bit); \
- bcm_writel(val, irq_mask_addr + reg * sizeof(u32)); \
+ for_each_present_cpu(cpu) { \
+ u32 irq_mask_addr = get_irq_mask_addr(cpu); \
+ \
+ if (!irq_mask_addr) \
+ break; \
+ \
+ val = bcm_readl(irq_mask_addr + reg * sizeof(u32)); \
+ if (cpu_online(cpu)) \
+ val |= (1 << bit); \
+ else \
+ val &= ~(1 << bit); \
+ bcm_writel(val, irq_mask_addr + reg * sizeof(u32)); \
+ } \
spin_unlock_irqrestore(&ipic_lock, flags); \
}
@@ -409,7 +426,10 @@ asmlinkage void plat_irq_dispatch(void)
do_IRQ(1);
if (cause & CAUSEF_IP2)
dispatch_internal(0);
- if (!is_ext_irq_cascaded) {
+ if (is_ext_irq_cascaded) {
+ if (cause & CAUSEF_IP3)
+ dispatch_internal(1);
+ } else {
if (cause & CAUSEF_IP3)
do_IRQ(IRQ_EXT_0);
if (cause & CAUSEF_IP4)
@@ -622,6 +642,14 @@ static struct irqaction cpu_ip2_cascade_
.flags = IRQF_NO_THREAD,
};
+#ifdef CONFIG_SMP
+static struct irqaction cpu_ip3_cascade_action = {
+ .handler = no_action,
+ .name = "cascade_ip3",
+ .flags = IRQF_NO_THREAD,
+};
+#endif
+
static struct irqaction cpu_ext_cascade_action = {
.handler = no_action,
.name = "cascade_extirq",
@@ -648,4 +676,8 @@ void __init arch_init_irq(void)
}
setup_irq(MIPS_CPU_IRQ_BASE + 2, &cpu_ip2_cascade_action);
+#ifdef CONFIG_SMP
+ if (is_ext_irq_cascaded)
+ setup_irq(MIPS_CPU_IRQ_BASE + 3, &cpu_ip3_cascade_action);
+#endif
}
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