github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-23 06:31:58 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

perf/arm_cspmu: Add PMEVFILT2R support

Browse Source 
Architecturally we have two filters for each regular event counter,
so add generic support for the second one too.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Reviewed-by: Ilkka Koskinen <ilkka@os.amperecomputing.com>
Link: https://lore.kernel.org/r/b11be3f23a72bc27088b115099c8fe865b70babc.1741190362.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Robin Murphy 2025-03-05 16:10:08 +00:00 committed by Will Deacon
parent 6de0298a39
commit a28f3cbfd1
2 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/perf/arm_cspmu/arm_cspmu.c
View File

@ -183,6 +183,7 @@ arm_cspmu_event_attr_is_visible(struct kobject *kobj,
static struct attribute *arm_cspmu_format_attrs[] = {
ARM_CSPMU_FORMAT_EVENT_ATTR,
ARM_CSPMU_FORMAT_FILTER_ATTR,
ARM_CSPMU_FORMAT_FILTER2_ATTR,
NULL,
};
@ -767,9 +768,11 @@ static void arm_cspmu_set_ev_filter(struct arm_cspmu *cspmu,
const struct perf_event *event)
{
u32 filter = event->attr.config1 & ARM_CSPMU_FILTER_MASK;
u32 offset = PMEVFILTR + (4 * hwc->idx);
u32 filter2 = event->attr.config2 & ARM_CSPMU_FILTER_MASK;
u32 offset = 4 * event->hw.idx;
writel(filter, cspmu->base0 + offset);
writel(filter, cspmu->base0 + PMEVFILTR + offset);
writel(filter2, cspmu->base0 + PMEVFILT2R + offset);
}
static void arm_cspmu_set_cc_filter(struct arm_cspmu *cspmu,

3
drivers/perf/arm_cspmu/arm_cspmu.h
View File

@ -47,6 +47,8 @@
/* Default filter format */
#define ARM_CSPMU_FORMAT_FILTER_ATTR \
ARM_CSPMU_FORMAT_ATTR(filter, "config1:0-31")
#define ARM_CSPMU_FORMAT_FILTER2_ATTR \
ARM_CSPMU_FORMAT_ATTR(filter2, "config2:0-31")
/*
* This is the default event number for cycle count, if supported, since the
@ -72,6 +74,7 @@
#define PMEVCNTR_HI 0x4
#define PMEVTYPER 0x400
#define PMCCFILTR 0x47C
#define PMEVFILT2R 0x800
#define PMEVFILTR 0xA00
#define PMCNTENSET 0xC00
#define PMCNTENCLR 0xC20