diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-12-15 14:52:16 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-12-15 14:52:16 -0300 |
commit | 8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be (patch) | |
tree | e9891aa6c295060d065adffd610c4f49ecf884f3 /drivers/pci/host/pcie-xilinx.c | |
parent | a71852147516bc1cb5b0b3cbd13639bfd4022dc8 (diff) |
Linux-libre 4.3.2-gnu
Diffstat (limited to 'drivers/pci/host/pcie-xilinx.c')
-rw-r--r-- | drivers/pci/host/pcie-xilinx.c | 42 |
1 files changed, 23 insertions, 19 deletions
diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c index f1a06a091..3c7a0d580 100644 --- a/drivers/pci/host/pcie-xilinx.c +++ b/drivers/pci/host/pcie-xilinx.c @@ -227,18 +227,16 @@ static struct pci_ops xilinx_pcie_ops = { */ static void xilinx_pcie_destroy_msi(unsigned int irq) { - struct irq_desc *desc; struct msi_desc *msi; struct xilinx_pcie_port *port; - desc = irq_to_desc(irq); - msi = irq_desc_get_msi_desc(desc); - port = sys_to_pcie(msi->dev->bus->sysdata); - - if (!test_bit(irq, msi_irq_in_use)) + if (!test_bit(irq, msi_irq_in_use)) { + msi = irq_get_msi_desc(irq); + port = sys_to_pcie(msi_desc_to_pci_sysdata(msi)); dev_err(port->dev, "Trying to free unused MSI#%d\n", irq); - else + } else { clear_bit(irq, msi_irq_in_use); + } } /** @@ -338,7 +336,6 @@ static int xilinx_pcie_msi_map(struct irq_domain *domain, unsigned int irq, { irq_set_chip_and_handler(irq, &xilinx_msi_irq_chip, handle_simple_irq); irq_set_chip_data(irq, domain->host_data); - set_irq_flags(irq, IRQF_VALID); return 0; } @@ -377,7 +374,6 @@ static int xilinx_pcie_intx_map(struct irq_domain *domain, unsigned int irq, { irq_set_chip_and_handler(irq, &dummy_irq_chip, handle_simple_irq); irq_set_chip_data(irq, domain->host_data); - set_irq_flags(irq, IRQF_VALID); return 0; } @@ -449,14 +445,17 @@ static irqreturn_t xilinx_pcie_intr_handler(int irq, void *data) return IRQ_HANDLED; } - /* Clear interrupt FIFO register 1 */ - pcie_write(port, XILINX_PCIE_RPIFR1_ALL_MASK, - XILINX_PCIE_REG_RPIFR1); + if (!(val & XILINX_PCIE_RPIFR1_MSI_INTR)) { + /* Clear interrupt FIFO register 1 */ + pcie_write(port, XILINX_PCIE_RPIFR1_ALL_MASK, + XILINX_PCIE_REG_RPIFR1); - /* Handle INTx Interrupt */ - val = ((val & XILINX_PCIE_RPIFR1_INTR_MASK) >> - XILINX_PCIE_RPIFR1_INTR_SHIFT) + 1; - generic_handle_irq(irq_find_mapping(port->irq_domain, val)); + /* Handle INTx Interrupt */ + val = ((val & XILINX_PCIE_RPIFR1_INTR_MASK) >> + XILINX_PCIE_RPIFR1_INTR_SHIFT) + 1; + generic_handle_irq(irq_find_mapping(port->irq_domain, + val)); + } } if (status & XILINX_PCIE_INTR_MSI) { @@ -647,9 +646,15 @@ static struct pci_bus *xilinx_pcie_scan_bus(int nr, struct pci_sys_data *sys) struct pci_bus *bus; port->root_busno = sys->busnr; - bus = pci_scan_root_bus(port->dev, sys->busnr, &xilinx_pcie_ops, - sys, &sys->resources); + if (IS_ENABLED(CONFIG_PCI_MSI)) + bus = pci_scan_root_bus_msi(port->dev, sys->busnr, + &xilinx_pcie_ops, sys, + &sys->resources, + &xilinx_pcie_msi_chip); + else + bus = pci_scan_root_bus(port->dev, sys->busnr, + &xilinx_pcie_ops, sys, &sys->resources); return bus; } @@ -847,7 +852,6 @@ static int xilinx_pcie_probe(struct platform_device *pdev) #ifdef CONFIG_PCI_MSI xilinx_pcie_msi_chip.dev = port->dev; - hw.msi_ctrl = &xilinx_pcie_msi_chip; #endif pci_common_init_dev(dev, &hw); |