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From 8679976d2ec08db4e4a14ecdd1ee022b70e51fc6 Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@openwrt.org>
Date: Tue, 30 Apr 2013 11:26:53 +0200
Subject: [PATCH 12/13] MIPS: BCM63XX: add cpumask argument to unmask

Allow selective unmasking of IPIC irqs.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
---
 arch/mips/bcm63xx/irq.c |   19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

--- a/arch/mips/bcm63xx/irq.c
+++ b/arch/mips/bcm63xx/irq.c
@@ -24,8 +24,10 @@ static void __dispatch_internal_32(int c
 static void __dispatch_internal_64(int cpu) __maybe_unused;
 static void __internal_irq_mask_32(unsigned int irq) __maybe_unused;
 static void __internal_irq_mask_64(unsigned int irq) __maybe_unused;
-static void __internal_irq_unmask_32(unsigned int irq) __maybe_unused;
-static void __internal_irq_unmask_64(unsigned int irq) __maybe_unused;
+static void __internal_irq_unmask_32(unsigned int irq,
+				     const struct cpumask *dest) __maybe_unused;
+static void __internal_irq_unmask_64(unsigned int irq,
+				     const struct cpumask *dest) __maybe_unused;
 
 static DEFINE_SPINLOCK(ipic_lock);
 static DEFINE_SPINLOCK(epic_lock);
@@ -150,7 +152,8 @@ static unsigned int ext_irq_count;
 static unsigned int ext_irq_start, ext_irq_end;
 static unsigned int ext_irq_cfg_reg1, ext_irq_cfg_reg2;
 static void (*internal_irq_mask)(unsigned int irq);
-static void (*internal_irq_unmask)(unsigned int irq);
+static void (*internal_irq_unmask)(unsigned int irq,
+				   const struct cpumask *dest);
 
 static void bcm63xx_init_irq(void)
 {
@@ -340,7 +343,8 @@ static void __internal_irq_mask_##width(
 	}								\
 }									\
 									\
-static void __internal_irq_unmask_##width(unsigned int irq)		\
+static void __internal_irq_unmask_##width(unsigned int irq,		\
+					const struct cpumask *dest)	\
 { 									\
 	u32 val;							\
 	unsigned reg = (irq / 32) ^ (width/32 - 1);			\
@@ -351,7 +355,10 @@ static void __internal_irq_unmask_##widt
 		u32 irq_mask_addr = get_irq_mask_addr(cpu);		\
 									\
 		val = bcm_readl(irq_mask_addr + reg * sizeof(u32));	\
-		val |= (1 << bit); 					\
+		if (cpu_isset(cpu, *dest))				\
+			val |= (1 << bit); 				\
+		else							\
+			val &= ~(1 << bit);				\
 		bcm_writel(val, irq_mask_addr + reg * sizeof(u32));	\
 	}								\
 }
@@ -413,7 +420,7 @@ static void bcm63xx_internal_irq_unmask(
 	unsigned long flags;
 
 	spin_lock_irqsave(&ipic_lock, flags);
-	internal_irq_unmask(d->irq - IRQ_INTERNAL_BASE);
+	internal_irq_unmask(d->irq - IRQ_INTERNAL_BASE, cpu_online_mask);
 	spin_unlock_irqrestore(&ipic_lock, flags);
 }