diff options
Diffstat (limited to 'drivers/pci/controller/pcie-xilinx.c')
| -rw-r--r-- | drivers/pci/controller/pcie-xilinx.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/drivers/pci/controller/pcie-xilinx.c b/drivers/pci/controller/pcie-xilinx.c index fa5baeb82653..e127a7b6e535 100644 --- a/drivers/pci/controller/pcie-xilinx.c +++ b/drivers/pci/controller/pcie-xilinx.c @@ -94,7 +94,6 @@ * struct xilinx_pcie_port - PCIe port information * @reg_base: IO Mapped Register Base * @irq: Interrupt number - * @msi_pages: MSI pages * @dev: Device pointer * @msi_domain: MSI IRQ domain pointer * @leg_domain: Legacy IRQ domain pointer @@ -103,7 +102,6 @@ struct xilinx_pcie_port { void __iomem *reg_base; u32 irq; - unsigned long msi_pages; struct device *dev; struct irq_domain *msi_domain; struct irq_domain *leg_domain; @@ -274,10 +272,10 @@ static int xilinx_pcie_msi_setup_irq(struct msi_controller *chip, irq_set_msi_desc(irq, desc); - msg_addr = virt_to_phys((void *)port->msi_pages); + msg_addr = ALIGN_DOWN(virt_to_phys(port), SZ_4K); - msg.address_hi = 0; - msg.address_lo = msg_addr; + msg.address_hi = upper_32_bits(msg_addr); + msg.address_lo = lower_32_bits(msg_addr); msg.data = irq; pci_write_msi_msg(irq, &msg); @@ -330,13 +328,9 @@ static int xilinx_pcie_enable_msi(struct xilinx_pcie_port *port) { phys_addr_t msg_addr; - port->msi_pages = __get_free_pages(GFP_KERNEL, 0); - if (!port->msi_pages) - return -ENOMEM; - - msg_addr = virt_to_phys((void *)port->msi_pages); - pcie_write(port, 0x0, XILINX_PCIE_REG_MSIBASE1); - pcie_write(port, msg_addr, XILINX_PCIE_REG_MSIBASE2); + msg_addr = ALIGN_DOWN(virt_to_phys(port), SZ_4K); + pcie_write(port, upper_32_bits(msg_addr), XILINX_PCIE_REG_MSIBASE1); + pcie_write(port, lower_32_bits(msg_addr), XILINX_PCIE_REG_MSIBASE2); return 0; } |