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perf/smmuv3: Add devicetree support

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Add device-tree support to the SMMUv3 PMCG driver.

Signed-off-by: Jay Chen <jkchen@linux.alibaba.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/20211117144844.241072-3-jean-philippe@linaro.org
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Jean-Philippe Brucker 2021-11-17 14:48:44 +00:00 committed by Will Deacon
parent 2704e75943
commit 3f7be43561
1 changed files with 10 additions and 1 deletions
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11
drivers/perf/arm_smmuv3_pmu.c
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@ -47,6 +47,7 @@
#include <linux/kernel.h> #include <linux/kernel.h>
#include <linux/list.h> #include <linux/list.h>
#include <linux/msi.h> #include <linux/msi.h>
#include <linux/of.h>
#include <linux/perf_event.h> #include <linux/perf_event.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>
#include <linux/smp.h> #include <linux/smp.h>
@ -834,7 +835,8 @@ static int smmu_pmu_probe(struct platform_device *pdev)
return -EINVAL; return -EINVAL;
} }
smmu_pmu_get_acpi_options(smmu_pmu); if (!dev->of_node)
smmu_pmu_get_acpi_options(smmu_pmu);
/* Pick one CPU to be the preferred one to use */ /* Pick one CPU to be the preferred one to use */
smmu_pmu->on_cpu = raw_smp_processor_id(); smmu_pmu->on_cpu = raw_smp_processor_id();
@ -884,9 +886,16 @@ static void smmu_pmu_shutdown(struct platform_device *pdev)
smmu_pmu_disable(&smmu_pmu->pmu); smmu_pmu_disable(&smmu_pmu->pmu);
} }
static const struct of_device_id smmu_pmu_of_match[] = {
{ .compatible = "arm,smmu-v3-pmcg" },
{}
};
MODULE_DEVICE_TABLE(of, smmu_pmu_of_match);
static struct platform_driver smmu_pmu_driver = { static struct platform_driver smmu_pmu_driver = {
.driver = { .driver = {
.name = "arm-smmu-v3-pmcg", .name = "arm-smmu-v3-pmcg",
.of_match_table = of_match_ptr(smmu_pmu_of_match),
.suppress_bind_attrs = true, .suppress_bind_attrs = true,
}, },
.probe = smmu_pmu_probe, .probe = smmu_pmu_probe,