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perf/arm-cci: Allow building as a module

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Fill in the few extra bits and annotations needed to make the driver
work properly as a module, and jiggle the Kconfig to expose the
driver-level ARM_CCI_PMU option.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Robin Murphy 2018-05-14 14:34:53 +01:00 • committed by Will Deacon
parent 28c01dc9d8
commit 8b0c93c20e
2 changed files with 34 additions and 17 deletions
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17
drivers/perf/arm-cci.c
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@ -1407,6 +1407,7 @@ static int cci_pmu_init(struct cci_pmu *cci_pmu, struct platform_device *pdev)
pmu_format_attr_group.attrs = model->format_attrs;
cci_pmu->pmu = (struct pmu) {
.module = THIS_MODULE,
.name = cci_pmu->model->name,
.task_ctx_nr = perf_invalid_context,
.pmu_enable = cci_pmu_enable,
@ -1572,6 +1573,7 @@ static const struct of_device_id arm_cci_pmu_matches[] = {
#endif
{},
};
MODULE_DEVICE_TABLE(of, arm_cci_pmu_matches);
static bool is_duplicate_irq(int irq, int *irqs, int nr_irqs)
{
@ -1693,14 +1695,27 @@ static int cci_pmu_probe(struct platform_device *pdev)
return 0;
}
static int cci_pmu_remove(struct platform_device *pdev)
{
if (!g_cci_pmu)
return 0;
cpuhp_remove_state(CPUHP_AP_PERF_ARM_CCI_ONLINE);
perf_pmu_unregister(&g_cci_pmu->pmu);
g_cci_pmu = NULL;
return 0;
}
static struct platform_driver cci_pmu_driver = {
.driver = {
.name = DRIVER_NAME,
.of_match_table = arm_cci_pmu_matches,
},
.probe = cci_pmu_probe,
.remove = cci_pmu_remove,
};
builtin_platform_driver(cci_pmu_driver);
module_platform_driver(cci_pmu_driver);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("ARM CCI PMU support");