From: Paul Mundt <lethal@linux-sh.org>
Date: Thu, 15 Apr 2010 02:59:28 +0000 (+0900)
Subject: sh: Disable IRQ balancing for timer and IPI IRQs.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fecf066c2d2fbc7e6a7e7e3a5af772a165bdd7b0;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

sh: Disable IRQ balancing for timer and IPI IRQs.

Make sure that the timer IRQs and IPIs aren't enabled for IRQ balancing.
IPIs are disabled as a result of being percpu while the timers simply
disable balancing outright.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---

diff --git a/arch/sh/kernel/cpu/sh4a/smp-shx3.c b/arch/sh/kernel/cpu/sh4a/smp-shx3.c
index 11bf4c1e25c0..c98b4574c44e 100644
--- a/arch/sh/kernel/cpu/sh4a/smp-shx3.c
+++ b/arch/sh/kernel/cpu/sh4a/smp-shx3.c
@@ -72,8 +72,8 @@ void __init plat_prepare_cpus(unsigned int max_cpus)
 	BUILD_BUG_ON(SMP_MSG_NR >= 8);
 
 	for (i = 0; i < SMP_MSG_NR; i++)
-		request_irq(104 + i, ipi_interrupt_handler, IRQF_DISABLED,
-			    "IPI", (void *)(long)i);
+		request_irq(104 + i, ipi_interrupt_handler,
+			    IRQF_DISABLED | IRQF_PERCPU, "IPI", (void *)(long)i);
 }
 
 void plat_start_cpu(unsigned int cpu, unsigned long entry_point)
diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index c5f66171a713..45be4dcb9514 100644
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -605,7 +605,8 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, struct platform_device *pdev)
 	p->irqaction.name = dev_name(&p->pdev->dev);
 	p->irqaction.handler = sh_cmt_interrupt;
 	p->irqaction.dev_id = p;
-	p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL;
+	p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | \
+			     IRQF_IRQPOLL  | IRQF_NOBALANCING;
 
 	/* get hold of clock */
 	p->clk = clk_get(&p->pdev->dev, "cmt_fck");
diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c
index b11882e0f1bd..644ecbbed256 100644
--- a/drivers/clocksource/sh_mtu2.c
+++ b/drivers/clocksource/sh_mtu2.c
@@ -280,7 +280,8 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev)
 	p->irqaction.handler = sh_mtu2_interrupt;
 	p->irqaction.dev_id = p;
 	p->irqaction.irq = irq;
-	p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL;
+	p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | \
+			     IRQF_IRQPOLL  | IRQF_NOBALANCING;
 
 	/* get hold of clock */
 	p->clk = clk_get(&p->pdev->dev, "mtu2_fck");
diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c
index 6b62283c1aba..44c39a363768 100644
--- a/drivers/clocksource/sh_tmu.c
+++ b/drivers/clocksource/sh_tmu.c
@@ -384,7 +384,8 @@ static int sh_tmu_setup(struct sh_tmu_priv *p, struct platform_device *pdev)
 	p->irqaction.handler = sh_tmu_interrupt;
 	p->irqaction.dev_id = p;
 	p->irqaction.irq = irq;
-	p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL;
+	p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | \
+			     IRQF_IRQPOLL  | IRQF_NOBALANCING;
 
 	/* get hold of clock */
 	p->clk = clk_get(&p->pdev->dev, "tmu_fck");