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From:   Andrew Murray <andrew.murray@arm.com>
To:     Peter Zijlstra <peterz@infradead.org>,
        Ingo Molnar <mingo@redhat.com>,
        Arnaldo Carvalho de Melo <acme@kernel.org>,
        Shawn Guo <shawnguo@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        Will Deacon <will.deacon@arm.com>,
        Mark Rutland <mark.rutland@arm.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Borislav Petkov <bp@alien8.de>, x86@kernel.org,
        Ralf Baechle <ralf@linux-mips.org>,
        Paul Burton <paul.burton@mips.com>,
        James Hogan <jhogan@kernel.org>,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        "David S . Miller" <davem@davemloft.net>,
        sparclinux@vger.kernel.org, Michael Ellerman <mpe@ellerman.id.au>
Cc:     linux-s390@vger.kernel.org, linux-mips@linux-mips.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-alpha@vger.kernel.org
Subject: [PATCH v2 15/20] s390: perf/events: advertise PMU exclusion capability
Date:   Mon, 26 Nov 2018 11:12:31 +0000
Message-Id: <1543230756-15319-16-git-send-email-andrew.murray@arm.com>
In-Reply-To: <1543230756-15319-1-git-send-email-andrew.murray@arm.com>
References: <1543230756-15319-1-git-send-email-andrew.murray@arm.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

The s390 cpum_cf and cpum_sf PMUs have the capability to exclude
events based on context. Let's advertise that we support the
PERF_PMU_CAP_EXCLUDE capability to ensure that perf doesn't
prevent us from handling events where any exclusion flags are set.

Signed-off-by: Andrew Murray <andrew.murray@arm.com>
---
 arch/s390/kernel/perf_cpum_cf.c | 1 +
 arch/s390/kernel/perf_cpum_sf.c | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c
index cc085e2..7b583ed 100644
--- a/arch/s390/kernel/perf_cpum_cf.c
+++ b/arch/s390/kernel/perf_cpum_cf.c
@@ -667,6 +667,7 @@ static struct pmu cpumf_pmu = {
 	.start_txn    = cpumf_pmu_start_txn,
 	.commit_txn   = cpumf_pmu_commit_txn,
 	.cancel_txn   = cpumf_pmu_cancel_txn,
+	.capabilities = PERF_PMU_CAP_EXCLUDE,
 };
 
 static int cpumf_pmf_setup(unsigned int cpu, int flags)
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index 5c53e97..25a64aa 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -1885,6 +1885,8 @@ static struct pmu cpumf_sampling = {
 
 	.setup_aux    = aux_buffer_setup,
 	.free_aux     = aux_buffer_free,
+
+	.capabilities = PERF_PMU_CAP_EXCLUDE,
 };
 
 static void cpumf_measurement_alert(struct ext_code ext_code,
-- 
2.7.4