[PATCH v5 3/7] arm: perf: support device with other non-irq resources

[ming . lei]

From: Ming Lei <ming....@canonical.com>

omap4 may create device via hwmod, which can create resources
automatically, so may include some non-irq resources.

This patch supports device with other non-irq resources.

Signed-off-by: Ming Lei <ming....@canonical.com>
---
 arch/arm/kernel/perf_event.c |    5 +++--
 arch/arm/kernel/pmu.c        |   12 ++++++++++--
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index f367780..d91dba2 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -19,6 +19,7 @@
 #include <linux/platform_device.h>
 #include <linux/spinlock.h>
 #include <linux/uaccess.h>
+#include <linux/cpumask.h>
 
 #include <asm/cputype.h>
 #include <asm/irq.h>
@@ -414,7 +415,7 @@ armpmu_reserve_hardware(void)
                return -ENODEV;
        }
 
-       for (i = 0; i < pmu_device->num_resources; ++i) {
+       for (i = 0; i < nr_cpu_ids; ++i) {
                irq = platform_get_irq(pmu_device, i);
                if (irq < 0)
                        continue;
@@ -453,7 +454,7 @@ armpmu_release_hardware(void)
        struct arm_pmu_platdata *plat =
                dev_get_platdata(&pmu_device->dev);
 
-       for (i = pmu_device->num_resources - 1; i >= 0; --i) {
+       for (i = nr_cpu_ids - 1; i >= 0; --i) {
                irq = platform_get_irq(pmu_device, i);
                if (irq >= 0) {
                        if (plat && plat->disable_irq)
diff --git a/arch/arm/kernel/pmu.c b/arch/arm/kernel/pmu.c
index c53474f..0e9c908 100644
--- a/arch/arm/kernel/pmu.c
+++ b/arch/arm/kernel/pmu.c
@@ -19,6 +19,7 @@
 #include <linux/module.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
+#include <linux/cpumask.h>
 
 #include <asm/pmu.h>
 
@@ -172,8 +173,15 @@ init_cpu_pmu(void)
        if (irqs == 1 && !irq_can_set_affinity(platform_get_irq(pdev, 0)))
                return 0;
 
-       for (i = 0; i < irqs; ++i) {
-               err = set_irq_affinity(platform_get_irq(pdev, i), i);
+       for (i = 0; i < nr_cpu_ids; ++i) {
+               int irq;
+
+               irq = platform_get_irq(pdev, i);
+
+               if (irq < 0)
+                       continue;
+
+               err = set_irq_affinity(irq, i);
                if (err)
                        break;
        }
-- 
1.7.5.4

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