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Message-Id: <1546878450-20341-14-git-send-email-andrew.murray@arm.com>
Date: Mon, 7 Jan 2019 16:27:30 +0000
From: Andrew Murray <andrew.murray@....com>
To: Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Richard Henderson <rth@...ddle.net>,
Ivan Kokshaysky <ink@...assic.park.msu.ru>,
Matt Turner <mattst88@...il.com>,
Will Deacon <will.deacon@....com>,
Mark Rutland <mark.rutland@....com>,
Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Paul Mackerras <paulus@...ba.org>,
Thomas Gleixner <tglx@...utronix.de>,
Borislav Petkov <bp@...en8.de>,
Russell King <linux@...linux.org.uk>, suzuki.poulose@....com,
robin.murphy@....com, Michael Ellerman <mpe@...erman.id.au>
Cc: x86@...nel.org, linuxppc-dev@...ts.ozlabs.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-alpha@...r.kernel.org
Subject: [PATCH v4 13/13] drivers/perf: use PERF_PMU_CAP_NO_EXCLUDE for Cavium TX2 PMU
The Cavium ThunderX2 UNCORE PMU driver doesn't support any event
filtering. Let's advertise the PERF_PMU_CAP_NO_EXCLUDE capability to
simplify the code.
Signed-off-by: Andrew Murray <andrew.murray@....com>
---
drivers/perf/thunderx2_pmu.c | 10 +---------
1 file changed, 1 insertion(+), 9 deletions(-)
diff --git a/drivers/perf/thunderx2_pmu.c b/drivers/perf/thunderx2_pmu.c
index c9a1701..43d76c8 100644
--- a/drivers/perf/thunderx2_pmu.c
+++ b/drivers/perf/thunderx2_pmu.c
@@ -424,15 +424,6 @@ static int tx2_uncore_event_init(struct perf_event *event)
if (is_sampling_event(event) || event->attach_state & PERF_ATTACH_TASK)
return -EINVAL;
- /* We have no filtering of any kind */
- if (event->attr.exclude_user ||
- event->attr.exclude_kernel ||
- event->attr.exclude_hv ||
- event->attr.exclude_idle ||
- event->attr.exclude_host ||
- event->attr.exclude_guest)
- return -EINVAL;
-
if (event->cpu < 0)
return -EINVAL;
@@ -572,6 +563,7 @@ static int tx2_uncore_pmu_register(
.start = tx2_uncore_event_start,
.stop = tx2_uncore_event_stop,
.read = tx2_uncore_event_read,
+ .capabilities = PERF_PMU_CAP_NO_EXCLUDE,
};
tx2_pmu->pmu.name = devm_kasprintf(dev, GFP_KERNEL,
--
2.7.4
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