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Commit 9133e394 authored by Gustavo Pimentel's avatar Gustavo Pimentel Committed by Lorenzo Pieralisi
Browse files

pci-epf-test/pci_endpoint_test: Use irq_type module parameter 



Add new driver parameter to allow interruption type selection.

Signed-off-by: default avatarGustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: default avatarLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: default avatarKishon Vijay Abraham I <kishon@ti.com>
parent e8817de7

drivers/misc/pci_endpoint_test.c

+19 −9
Original line number Diff line number Diff line
@@ -82,6 +82,10 @@ static bool no_msi; 
module_param(no_msi, bool, 0444);

MODULE_PARM_DESC(no_msi, "Disable MSI interrupt in pci_endpoint_test");



static int irq_type = IRQ_TYPE_MSI;

module_param(irq_type, int, 0444);

MODULE_PARM_DESC(irq_type, "IRQ mode selection in pci_endpoint_test (0 - Legacy, 1 - MSI)");



enum pci_barno {

	BAR_0,

	BAR_1,
@@ -108,7 +112,7 @@ struct pci_endpoint_test { 
struct pci_endpoint_test_data {

	enum pci_barno test_reg_bar;

	size_t alignment;

	bool no_msi;

	int irq_type;

};



static inline u32 pci_endpoint_test_readl(struct pci_endpoint_test *test,
@@ -291,8 +295,7 @@ static bool pci_endpoint_test_copy(struct pci_endpoint_test *test, size_t size) 
	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_SIZE,

				 size);



	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_TYPE,

				 no_msi ? IRQ_TYPE_LEGACY : IRQ_TYPE_MSI);

	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_TYPE, irq_type);

	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_NUMBER, 1);

	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_COMMAND,

				 COMMAND_COPY);
@@ -361,8 +364,7 @@ static bool pci_endpoint_test_write(struct pci_endpoint_test *test, size_t size) 


	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_SIZE, size);



	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_TYPE,

				 no_msi ? IRQ_TYPE_LEGACY : IRQ_TYPE_MSI);

	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_TYPE, irq_type);

	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_NUMBER, 1);

	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_COMMAND,

				 COMMAND_READ);
@@ -419,8 +421,7 @@ static bool pci_endpoint_test_read(struct pci_endpoint_test *test, size_t size) 


	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_SIZE, size);



	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_TYPE,

				 no_msi ? IRQ_TYPE_LEGACY : IRQ_TYPE_MSI);

	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_TYPE, irq_type);

	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_NUMBER, 1);

	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_COMMAND,

				 COMMAND_WRITE);
@@ -505,11 +506,14 @@ static int pci_endpoint_test_probe(struct pci_dev *pdev, 
	test->alignment = 0;

	test->pdev = pdev;



	if (no_msi)

		irq_type = IRQ_TYPE_LEGACY;



	data = (struct pci_endpoint_test_data *)ent->driver_data;

	if (data) {

		test_reg_bar = data->test_reg_bar;

		test->alignment = data->alignment;

		no_msi = data->no_msi;

		irq_type = data->irq_type;

	}



	init_completion(&test->irq_raised);
@@ -529,11 +533,17 @@ static int pci_endpoint_test_probe(struct pci_dev *pdev, 


	pci_set_master(pdev);



	if (!no_msi) {

	switch (irq_type) {

	case IRQ_TYPE_LEGACY:

		break;

	case IRQ_TYPE_MSI:

		irq = pci_alloc_irq_vectors(pdev, 1, 32, PCI_IRQ_MSI);

		if (irq < 0)

			dev_err(dev, "Failed to get MSI interrupts\n");

		test->num_irqs = irq;

		break;

	default:

		dev_err(dev, "Invalid IRQ type selected\n");

	}



	err = devm_request_irq(dev, pdev->irq, pci_endpoint_test_irqhandler,