openwrtv4/target/linux/brcm63xx/patches-3.10/325-MIPS-BCM63XX-wire-up-the-second-cpu-s-irq-line.patch
Jonas Gorski db36359f48 brcm63xx: remove non runtime detect and refresh affinity patches
Remove the non runtime detect code since its effectiveness is dubious
and almost never used.
Also update affinity patches to work on top of it.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 39268
2014-01-13 12:13:15 +00:00

92 lines
2.8 KiB
Diff

From df6661d1b5c001eb91ce07f364fd5b6468fd6f99 Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@openwrt.org>
Date: Fri, 26 Apr 2013 12:03:15 +0200
Subject: [PATCH 36/53] MIPS: BCM63XX: wire up the second cpu's irq line
---
arch/mips/bcm63xx/irq.c | 44 +++++++++++++++++++++++++++++++++++++-------
1 file changed, 37 insertions(+), 7 deletions(-)
--- a/arch/mips/bcm63xx/irq.c
+++ b/arch/mips/bcm63xx/irq.c
@@ -102,11 +102,17 @@ static void __internal_irq_mask_##width(
unsigned reg = (irq / 32) ^ (width/32 - 1); \
unsigned bit = irq & 0x1f; \
unsigned long flags; \
+ int cpu; \
\
spin_lock_irqsave(&ipic_lock, flags); \
- val = bcm_readl(irq_mask_addr[0] + reg * sizeof(u32)); \
- val &= ~(1 << bit); \
- bcm_writel(val, irq_mask_addr[0] + reg * sizeof(u32)); \
+ for_each_present_cpu(cpu) { \
+ if (!irq_mask_addr[cpu]) \
+ break; \
+ \
+ val = bcm_readl(irq_mask_addr[cpu] + reg * sizeof(u32));\
+ val &= ~(1 << bit); \
+ bcm_writel(val, irq_mask_addr[cpu] + reg * sizeof(u32));\
+ } \
spin_unlock_irqrestore(&ipic_lock, flags); \
} \
\
@@ -116,11 +122,20 @@ static void __internal_irq_unmask_##widt
unsigned reg = (irq / 32) ^ (width/32 - 1); \
unsigned bit = irq & 0x1f; \
unsigned long flags; \
+ int cpu; \
\
spin_lock_irqsave(&ipic_lock, flags); \
- val = bcm_readl(irq_mask_addr[0] + reg * sizeof(u32)); \
- val |= (1 << bit); \
- bcm_writel(val, irq_mask_addr[0] + reg * sizeof(u32)); \
+ for_each_present_cpu(cpu) { \
+ if (!irq_mask_addr[cpu]) \
+ break; \
+ \
+ val = bcm_readl(irq_mask_addr[cpu] + reg * sizeof(u32));\
+ if (cpu_online(cpu)) \
+ val |= (1 << bit); \
+ else \
+ val &= ~(1 << bit); \
+ bcm_writel(val, irq_mask_addr[cpu] + reg * sizeof(u32));\
+ } \
spin_unlock_irqrestore(&ipic_lock, flags); \
}
@@ -145,7 +160,10 @@ 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)
@@ -358,6 +376,14 @@ 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",
@@ -494,4 +520,8 @@ 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
}