[SRU][G/linux-oracle][PATCH 12/18] UBUNTU: SAUCE: perf: arm_dsu: Allow IRQ to be shared among devices.
Khalid Elmously
khalid.elmously at canonical.com
Fri May 21 07:00:36 UTC 2021
From: Tuan Phan <tphan at amperecomputing.com>
BugLink: https://bugs.launchpad.net/bugs/1925421
Some DSU devices use same IRQ.
Signed-off-by: Tuan Phan <tphan at amperecomputing.com>
(cherry picked from commit c015bb2eebcb97a2dfbf656f63449807e469e342 https://github.com/AmpereComputing/ampere-centos-kernel)
Signed-off-by: Khalid Elmously <khalid.elmously at canonical.com>
---
drivers/perf/arm_dsu_pmu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/perf/arm_dsu_pmu.c b/drivers/perf/arm_dsu_pmu.c
index 98e68ed7db85..04b49373c78b 100644
--- a/drivers/perf/arm_dsu_pmu.c
+++ b/drivers/perf/arm_dsu_pmu.c
@@ -740,7 +740,7 @@ static int dsu_pmu_device_probe(struct platform_device *pdev)
if (!name)
return -ENOMEM;
rc = devm_request_irq(&pdev->dev, irq, dsu_pmu_handle_irq,
- IRQF_NOBALANCING, name, dsu_pmu);
+ IRQF_NOBALANCING | IRQF_SHARED, name, dsu_pmu);
if (rc) {
dev_warn(&pdev->dev, "Failed to request IRQ %d\n", irq);
return rc;
--
2.17.1
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