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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-03-06 08:42:55 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-03-06 08:42:55 +0000 |
| commit | 71d8c5b11e3b5936ae6c2e0b1dd6f5c78b305b65 (patch) | |
| tree | c815434adc34cb7274ef6a0ee16cf8491fa0c03e /arch/arm/kernel/pmu.c | |
| parent | 0fff6b9a4e0aba233a2ff644316d29b0cb784e33 (diff) | |
| parent | 53936c56dcaf1db818fe953ae05592a8b5e345b5 (diff) | |
| download | kernel_samsung_smdk4412-71d8c5b11e3b5936ae6c2e0b1dd6f5c78b305b65.zip kernel_samsung_smdk4412-71d8c5b11e3b5936ae6c2e0b1dd6f5c78b305b65.tar.gz kernel_samsung_smdk4412-71d8c5b11e3b5936ae6c2e0b1dd6f5c78b305b65.tar.bz2 | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/nico/orion into devel-stable
Diffstat (limited to 'arch/arm/kernel/pmu.c')
| -rw-r--r-- | arch/arm/kernel/pmu.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/arch/arm/kernel/pmu.c b/arch/arm/kernel/pmu.c index b8af96e..2c79eec 100644 --- a/arch/arm/kernel/pmu.c +++ b/arch/arm/kernel/pmu.c @@ -97,28 +97,34 @@ set_irq_affinity(int irq, irq, cpu); return err; #else - return 0; + return -EINVAL; #endif } static int init_cpu_pmu(void) { - int i, err = 0; + int i, irqs, err = 0; struct platform_device *pdev = pmu_devices[ARM_PMU_DEVICE_CPU]; - if (!pdev) { - err = -ENODEV; - goto out; - } + if (!pdev) + return -ENODEV; + + irqs = pdev->num_resources; + + /* + * If we have a single PMU interrupt that we can't shift, assume that + * we're running on a uniprocessor machine and continue. + */ + if (irqs == 1 && !irq_can_set_affinity(platform_get_irq(pdev, 0))) + return 0; - for (i = 0; i < pdev->num_resources; ++i) { + for (i = 0; i < irqs; ++i) { err = set_irq_affinity(platform_get_irq(pdev, i), i); if (err) break; } -out: return err; } |