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From: Kishon Vijay Abraham I <kishon@ti.com>
To: Bjorn Helgaas <bhelgaas@google.com>,
	Andrew Murray <amurray@thegoodpenguin.co.uk>,
	Gustavo Pimentel <gustavo.pimentel@synopsys.com>,
	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Arnd Bergmann <arnd@arndb.de>, <linux-pci@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>,
	Kishon Vijay Abraham I <kishon@ti.com>
Subject: [PATCH v2 2/5] misc: pci_endpoint_test: Add ioctl to clear IRQ
Date: Tue, 17 Mar 2020 15:31:55 +0530	[thread overview]
Message-ID: <20200317100158.4692-3-kishon@ti.com> (raw)
In-Reply-To: <20200317100158.4692-1-kishon@ti.com>

Add ioctl to clear IRQ which can be used to free the allocated
IRQ vectors and free the requested IRQ.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 drivers/misc/pci_endpoint_test.c | 10 ++++++++++
 include/uapi/linux/pcitest.h     |  1 +
 2 files changed, 11 insertions(+)

diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c
index ca680635d7a9..bb8b94ac8d3b 100644
--- a/drivers/misc/pci_endpoint_test.c
+++ b/drivers/misc/pci_endpoint_test.c
@@ -652,6 +652,13 @@ static bool pci_endpoint_test_read(struct pci_endpoint_test *test,
 	return ret;
 }
 
+static bool pci_endpoint_test_clear_irq(struct pci_endpoint_test *test)
+{
+	pci_endpoint_test_release_irq(test);
+	pci_endpoint_test_free_irq_vectors(test);
+	return true;
+}
+
 static bool pci_endpoint_test_set_irq(struct pci_endpoint_test *test,
 				      int req_irq_type)
 {
@@ -722,6 +729,9 @@ static long pci_endpoint_test_ioctl(struct file *file, unsigned int cmd,
 	case PCITEST_GET_IRQTYPE:
 		ret = irq_type;
 		break;
+	case PCITEST_CLEAR_IRQ:
+		ret = pci_endpoint_test_clear_irq(test);
+		break;
 	}
 
 ret:
diff --git a/include/uapi/linux/pcitest.h b/include/uapi/linux/pcitest.h
index 8b868761f8b4..c3ab4c826297 100644
--- a/include/uapi/linux/pcitest.h
+++ b/include/uapi/linux/pcitest.h
@@ -19,6 +19,7 @@
 #define PCITEST_MSIX		_IOW('P', 0x7, int)
 #define PCITEST_SET_IRQTYPE	_IOW('P', 0x8, int)
 #define PCITEST_GET_IRQTYPE	_IO('P', 0x9)
+#define PCITEST_CLEAR_IRQ	_IO('P', 0x10)
 
 #define PCITEST_FLAGS_USE_DMA	0x00000001
 
-- 
2.17.1


  parent reply	other threads:[~2020-03-17  9:57 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-17 10:01 [PATCH v2 0/5] misc: Improvements to pci_endpoint_test driver Kishon Vijay Abraham I
2020-03-17 10:01 ` [PATCH v2 1/5] misc: pci_endpoint_test: Avoid using module parameter to determine irqtype Kishon Vijay Abraham I
2020-03-17 10:01 ` Kishon Vijay Abraham I [this message]
2020-03-17 10:01 ` [PATCH v2 3/5] tools: PCI: Add 'e' to clear IRQ Kishon Vijay Abraham I
2020-03-17 10:01 ` [PATCH v2 4/5] misc: pci_endpoint_test: Fix to support > 10 pci-endpoint-test devices Kishon Vijay Abraham I
2020-03-17 10:01 ` [PATCH v2 5/5] misc: pci_endpoint_test: Use full pci-endpoint-test name in request irq Kishon Vijay Abraham I
2020-03-20  9:52 ` [PATCH v2 0/5] misc: Improvements to pci_endpoint_test driver Lorenzo Pieralisi

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