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

Add new driver parameter to allow interruption type selection.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Gustavo Pimentel 2018-07-19 10:32:18 +02:00 committed by Lorenzo Pieralisi
parent e8817de7fb
commit 9133e394d5
1 changed files with 19 additions and 9 deletions
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28
drivers/misc/pci_endpoint_test.c
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@ -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,