Hi,
Attach the patch [PATCH v5 2/7] which is rebased on 3.1 -next.
BTW: The [PATCH v5 3/7] should be dropped as commented before, other patches
are OK against 3.1 -next.
thanks,
--
Ming Lei
--
>From 6125bef1aeee84ef22efdf743077f27f5274b6da Mon Sep 17 00:00:00 2001
From: Ming Lei <ming....@canonical.com>
Date: Wed, 2 Mar 2011 15:00:08 +0800
Subject: [PATCH v6 2/6] arm: pmu: allow platform specific irq enable/disable
handling
This patch introduces .enable_irq and .disable_irq into
struct arm_pmu_platdata, so platform specific irq enablement
can be handled after request_irq, and platform specific irq
disablement can be handled before free_irq.
This patch is for support of pmu irq routed from CTI on omap4.
Acked-by: Jean Pihet <j-pi...@ti.com>
Reviewed-by: Will Deacon <will.dea...@arm.com>
Signed-off-by: Ming Lei <ming....@canonical.com>
---
arch/arm/include/asm/pmu.h | 15 ++++++++++++---
arch/arm/kernel/perf_event.c | 10 ++++++++--
2 files changed, 20 insertions(+), 5 deletions(-)
diff --git a/arch/arm/include/asm/pmu.h b/arch/arm/include/asm/pmu.h
index 71d99b8..46a96a8 100644
--- a/arch/arm/include/asm/pmu.h
+++ b/arch/arm/include/asm/pmu.h
@@ -27,13 +27,22 @@ enum arm_pmu_type {
/*
* struct arm_pmu_platdata - ARM PMU platform data
*
- * @handle_irq: an optional handler which will be called from the interrupt and
- * passed the address of the low level handler, and can be used to implement
- * any platform specific handling before or after calling it.
+ * @handle_irq: an optional handler which will be called from the
+ * interrupt and passed the address of the low level handler,
+ * and can be used to implement any platform specific handling
+ * before or after calling it.
+ * @enable_irq: an optional handler which will be called after
+ * request_irq and be used to handle some platform specific
+ * irq enablement
+ * @disable_irq: an optional handler which will be called before
+ * free_irq and be used to handle some platform specific
+ * irq disablement
*/
struct arm_pmu_platdata {
irqreturn_t (*handle_irq)(int irq, void *dev,
irq_handler_t pmu_handler);
+ void (*enable_irq)(int irq);
+ void (*disable_irq)(int irq);
};
#ifdef CONFIG_CPU_HAS_PMU
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index e6e5d7c..4c4aa83 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -374,6 +374,8 @@ armpmu_release_hardware(struct arm_pmu *armpmu)
{
int i, irq, irqs;
struct platform_device *pmu_device = armpmu->plat_device;
+ struct arm_pmu_platdata *plat =
+ dev_get_platdata(&pmu_device->dev);
irqs = min(pmu_device->num_resources, num_possible_cpus());
@@ -381,8 +383,11 @@ armpmu_release_hardware(struct arm_pmu *armpmu)
if (!cpumask_test_and_clear_cpu(i, &armpmu->active_irqs))
continue;
irq = platform_get_irq(pmu_device, i);
- if (irq >= 0)
+ if (irq >= 0) {
+ if (plat && plat->disable_irq)
+ plat->disable_irq(irq);
free_irq(irq, armpmu);
+ }
}
release_pmu(armpmu->type);
@@ -439,7 +444,8 @@ armpmu_reserve_hardware(struct arm_pmu *armpmu)
irq);
armpmu_release_hardware(armpmu);
return err;
- }
+ } else if (plat && plat->enable_irq)
+ plat->enable_irq(irq);
cpumask_set_cpu(i, &armpmu->active_irqs);
}
--
1.7.5.4
--
Ming Lei
--
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