diff options
| author | Mark Rutland <mark.rutland@arm.com> | 2016-09-09 14:08:26 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2016-09-09 14:51:51 +0100 |
| commit | 86cdd72af936860503f392825410d1b60a3e474e (patch) | |
| tree | ac544c7b51bc28be08696c696a718cec63a0894f | |
| parent | d3ea42aad584493b99c109e59ced77db145a68e1 (diff) | |
drivers/perf: arm_pmu: add common attr group fields
In preparation for adding common attribute groups, add an array of
attribute group pointers to arm_pmu, which will be used if the
backend hasn't already set pmu::attr_groups.
Subsequent patches will move backends over to using these, before adding
common fields.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
| -rw-r--r-- | drivers/perf/arm_pmu.c | 3 | ||||
| -rw-r--r-- | include/linux/perf/arm_pmu.h | 10 |
2 files changed, 12 insertions, 1 deletions
diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c index 193a68cc2af4..1a39899d1392 100644 --- a/drivers/perf/arm_pmu.c +++ b/drivers/perf/arm_pmu.c @@ -1037,6 +1037,9 @@ int arm_pmu_device_probe(struct platform_device *pdev, goto out_free; } + if (!pmu->pmu.attr_groups) + pmu->pmu.attr_groups = pmu->attr_groups; + ret = cpu_pmu_init(pmu); if (ret) goto out_free; diff --git a/include/linux/perf/arm_pmu.h b/include/linux/perf/arm_pmu.h index e18843809eec..268bc63f1358 100644 --- a/include/linux/perf/arm_pmu.h +++ b/include/linux/perf/arm_pmu.h @@ -14,7 +14,7 @@ #include <linux/interrupt.h> #include <linux/perf_event.h> - +#include <linux/sysfs.h> #include <asm/cputype.h> /* @@ -77,6 +77,12 @@ struct pmu_hw_events { struct arm_pmu *percpu_pmu; }; +enum armpmu_attr_groups { + ARMPMU_ATTR_GROUP_EVENTS, + ARMPMU_ATTR_GROUP_FORMATS, + ARMPMU_NR_ATTR_GROUPS +}; + struct arm_pmu { struct pmu pmu; cpumask_t active_irqs; @@ -111,6 +117,8 @@ struct arm_pmu { struct pmu_hw_events __percpu *hw_events; struct list_head entry; struct notifier_block cpu_pm_nb; + /* the attr_groups array must be NULL-terminated */ + const struct attribute_group *attr_groups[ARMPMU_NR_ATTR_GROUPS + 1]; }; #define to_arm_pmu(p) (container_of(p, struct arm_pmu, pmu)) |