diff options
Diffstat (limited to 'drivers/pci/controller/pci-xgene.c')
-rw-r--r-- | drivers/pci/controller/pci-xgene.c | 33 |
1 files changed, 22 insertions, 11 deletions
diff --git a/drivers/pci/controller/pci-xgene.c b/drivers/pci/controller/pci-xgene.c index 0d5acbfc7143..aa41ceaf031f 100644 --- a/drivers/pci/controller/pci-xgene.c +++ b/drivers/pci/controller/pci-xgene.c @@ -479,28 +479,27 @@ static int xgene_pcie_select_ib_reg(u8 *ib_reg_mask, u64 size) } static void xgene_pcie_setup_ib_reg(struct xgene_pcie *port, - struct resource_entry *entry, - u8 *ib_reg_mask) + struct of_pci_range *range, u8 *ib_reg_mask) { void __iomem *cfg_base = port->cfg_base; struct device *dev = port->dev; void __iomem *bar_addr; u32 pim_reg; - u64 cpu_addr = entry->res->start; - u64 pci_addr = cpu_addr - entry->offset; - u64 size = resource_size(entry->res); + u64 cpu_addr = range->cpu_addr; + u64 pci_addr = range->pci_addr; + u64 size = range->size; u64 mask = ~(size - 1) | EN_REG; u32 flags = PCI_BASE_ADDRESS_MEM_TYPE_64; u32 bar_low; int region; - region = xgene_pcie_select_ib_reg(ib_reg_mask, size); + region = xgene_pcie_select_ib_reg(ib_reg_mask, range->size); if (region < 0) { dev_warn(dev, "invalid pcie dma-range config\n"); return; } - if (entry->res->flags & IORESOURCE_PREFETCH) + if (range->flags & IORESOURCE_PREFETCH) flags |= PCI_BASE_ADDRESS_MEM_PREFETCH; bar_low = pcie_bar_low_val((u32)cpu_addr, flags); @@ -531,13 +530,25 @@ static void xgene_pcie_setup_ib_reg(struct xgene_pcie *port, static int xgene_pcie_parse_map_dma_ranges(struct xgene_pcie *port) { - struct pci_host_bridge *bridge = pci_host_bridge_from_priv(port); - struct resource_entry *entry; + struct device_node *np = port->node; + struct of_pci_range range; + struct of_pci_range_parser parser; + struct device *dev = port->dev; u8 ib_reg_mask = 0; - resource_list_for_each_entry(entry, &bridge->dma_ranges) - xgene_pcie_setup_ib_reg(port, entry, &ib_reg_mask); + if (of_pci_dma_range_parser_init(&parser, np)) { + dev_err(dev, "missing dma-ranges property\n"); + return -EINVAL; + } + + /* Get the dma-ranges from DT */ + for_each_of_pci_range(&parser, &range) { + u64 end = range.cpu_addr + range.size - 1; + dev_dbg(dev, "0x%08x 0x%016llx..0x%016llx -> 0x%016llx\n", + range.flags, range.cpu_addr, end, range.pci_addr); + xgene_pcie_setup_ib_reg(port, &range, &ib_reg_mask); + } return 0; } |