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From: Ilkka Koskinen <ilkka@os.amperecomputing.com>
To: Jonathan Corbet <corbet@lwn.net>, Will Deacon <will@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Besar Wicaksono <bwicaksono@nvidia.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Robin Murphy <robin.murphy@arm.com>
Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Ilkka Koskinen <ilkka@os.amperecomputing.com>
Subject: [PATCH v2 2/5] perf: arm_cspmu: Support shared interrupts
Date: Wed, 31 May 2023 20:01:41 -0700	[thread overview]
Message-ID: <20230601030144.3458136-3-ilkka@os.amperecomputing.com> (raw)
In-Reply-To: <20230601030144.3458136-1-ilkka@os.amperecomputing.com>

Some of the PMUs may share the interrupt. Support them by
setting IRQF_SHARED

Signed-off-by: Ilkka Koskinen <ilkka@os.amperecomputing.com>
---
 drivers/perf/arm_cspmu/arm_cspmu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/perf/arm_cspmu/arm_cspmu.c b/drivers/perf/arm_cspmu/arm_cspmu.c
index 88547a2b73e6..cc5204d1b5fb 100644
--- a/drivers/perf/arm_cspmu/arm_cspmu.c
+++ b/drivers/perf/arm_cspmu/arm_cspmu.c
@@ -1067,8 +1067,8 @@ static int arm_cspmu_request_irq(struct arm_cspmu *cspmu)
 		return irq;
 
 	ret = devm_request_irq(dev, irq, arm_cspmu_handle_irq,
-			       IRQF_NOBALANCING | IRQF_NO_THREAD, dev_name(dev),
-			       cspmu);
+			       IRQF_NOBALANCING | IRQF_NO_THREAD | IRQF_SHARED,
+			       dev_name(dev), cspmu);
 	if (ret) {
 		dev_err(dev, "Could not request IRQ %d\n", irq);
 		return ret;
-- 
2.40.1


WARNING: multiple messages have this Message-ID (diff)
From: Ilkka Koskinen <ilkka@os.amperecomputing.com>
To: Jonathan Corbet <corbet@lwn.net>, Will Deacon <will@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Besar Wicaksono <bwicaksono@nvidia.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Robin Murphy <robin.murphy@arm.com>
Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Ilkka Koskinen <ilkka@os.amperecomputing.com>
Subject: [PATCH v2 2/5] perf: arm_cspmu: Support shared interrupts
Date: Wed, 31 May 2023 20:01:41 -0700	[thread overview]
Message-ID: <20230601030144.3458136-3-ilkka@os.amperecomputing.com> (raw)
In-Reply-To: <20230601030144.3458136-1-ilkka@os.amperecomputing.com>

Some of the PMUs may share the interrupt. Support them by
setting IRQF_SHARED

Signed-off-by: Ilkka Koskinen <ilkka@os.amperecomputing.com>
---
 drivers/perf/arm_cspmu/arm_cspmu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/perf/arm_cspmu/arm_cspmu.c b/drivers/perf/arm_cspmu/arm_cspmu.c
index 88547a2b73e6..cc5204d1b5fb 100644
--- a/drivers/perf/arm_cspmu/arm_cspmu.c
+++ b/drivers/perf/arm_cspmu/arm_cspmu.c
@@ -1067,8 +1067,8 @@ static int arm_cspmu_request_irq(struct arm_cspmu *cspmu)
 		return irq;
 
 	ret = devm_request_irq(dev, irq, arm_cspmu_handle_irq,
-			       IRQF_NOBALANCING | IRQF_NO_THREAD, dev_name(dev),
-			       cspmu);
+			       IRQF_NOBALANCING | IRQF_NO_THREAD | IRQF_SHARED,
+			       dev_name(dev), cspmu);
 	if (ret) {
 		dev_err(dev, "Could not request IRQ %d\n", irq);
 		return ret;
-- 
2.40.1


_______________________________________________
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2023-06-01  3:03 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-01  3:01 [PATCH v2 0/5] perf: ampere: Add support for Ampere SoC PMUs Ilkka Koskinen
2023-06-01  3:01 ` Ilkka Koskinen
2023-06-01  3:01 ` [PATCH v2 1/5] perf: arm_cspmu: Support 32-bit accesses to 64-bit registers Ilkka Koskinen
2023-06-01  3:01   ` Ilkka Koskinen
2023-06-01 14:49   ` Robin Murphy
2023-06-01 14:49     ` Robin Murphy
2023-06-02  6:47     ` Ilkka Koskinen
2023-06-02  6:47       ` Ilkka Koskinen
2023-06-01  3:01 ` Ilkka Koskinen [this message]
2023-06-01  3:01   ` [PATCH v2 2/5] perf: arm_cspmu: Support shared interrupts Ilkka Koskinen
2023-06-01 14:54   ` Robin Murphy
2023-06-01 14:54     ` Robin Murphy
2023-06-02  7:04     ` Ilkka Koskinen
2023-06-02  7:04       ` Ilkka Koskinen
2023-06-02 11:25       ` Robin Murphy
2023-06-02 11:25         ` Robin Murphy
2023-06-01  3:01 ` [PATCH v2 3/5] perf: arm_cspmu: Support implementation specific filters Ilkka Koskinen
2023-06-01  3:01   ` Ilkka Koskinen
2023-06-01  3:01 ` [PATCH v2 4/5] perf: arm_cspmu: Support implementation specific event validation Ilkka Koskinen
2023-06-01  3:01   ` Ilkka Koskinen
2023-06-01 15:09   ` Robin Murphy
2023-06-01 15:09     ` Robin Murphy
2023-06-02  7:09     ` Ilkka Koskinen
2023-06-02  7:09       ` Ilkka Koskinen
2023-06-01  3:01 ` [PATCH v2 5/5] perf: arm_cspmu: ampere_cspmu: Add support for Ampere SoC PMU Ilkka Koskinen
2023-06-01  3:01   ` Ilkka Koskinen
2023-06-01 15:23   ` Robin Murphy
2023-06-01 15:23     ` Robin Murphy
2023-06-02  7:13     ` Ilkka Koskinen
2023-06-02  7:13       ` Ilkka Koskinen
2023-06-02 11:51       ` Robin Murphy
2023-06-02 11:51         ` Robin Murphy
2023-06-03  1:16   ` kernel test robot
2023-06-03  1:16     ` kernel test robot

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