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authorBjorn Helgaas <bhelgaas@google.com>2019-11-28 08:54:53 -0600
committerBjorn Helgaas <bhelgaas@google.com>2019-11-28 08:54:53 -0600
commit7bd4c4a7b0ff94ef01247f905cd568fb67c747e0 (patch)
treefa0826759cb79a704787fa28053370b390c9b891 /drivers/pci/controller/pcie-rcar.c
parentd8ddab63635d4b474a99424538001932884b55ae (diff)
parent3b55809cf91f54fa5add4cc4cfed934565568ed7 (diff)
Merge branch 'remotes/lorenzo/pci/mmio-dma-ranges'
- Consolidate DT "dma-ranges" parsing and convert all host drivers to use shared parsing (Rob Herring) * remotes/lorenzo/pci/mmio-dma-ranges: PCI: Make devm_of_pci_get_host_bridge_resources() static PCI: rcar: Use inbound resources for setup PCI: iproc: Use inbound resources for setup PCI: xgene: Use inbound resources for setup PCI: v3-semi: Use inbound resources for setup PCI: ftpci100: Use inbound resources for setup PCI: of: Add inbound resource parsing to helpers PCI: versatile: Enable COMPILE_TEST PCI: versatile: Remove usage of PHYS_OFFSET PCI: versatile: Use pci_parse_request_of_pci_ranges() PCI: xilinx-nwl: Use pci_parse_request_of_pci_ranges() PCI: xilinx: Use pci_parse_request_of_pci_ranges() PCI: xgene: Use pci_parse_request_of_pci_ranges() PCI: v3-semi: Use pci_parse_request_of_pci_ranges() PCI: rockchip: Drop storing driver private outbound resource data PCI: rockchip: Use pci_parse_request_of_pci_ranges() PCI: mobiveil: Use pci_parse_request_of_pci_ranges() PCI: mediatek: Use pci_parse_request_of_pci_ranges() PCI: iproc: Use pci_parse_request_of_pci_ranges() PCI: faraday: Use pci_parse_request_of_pci_ranges() PCI: dwc: Use pci_parse_request_of_pci_ranges() PCI: altera: Use pci_parse_request_of_pci_ranges() PCI: aardvark: Use pci_parse_request_of_pci_ranges() PCI: Export pci_parse_request_of_pci_ranges() resource: Add a resource_list_first_type helper # Conflicts: # drivers/pci/controller/pcie-rcar.c
Diffstat (limited to 'drivers/pci/controller/pcie-rcar.c')
-rw-r--r--drivers/pci/controller/pcie-rcar.c48
1 files changed, 18 insertions, 30 deletions
diff --git a/drivers/pci/controller/pcie-rcar.c b/drivers/pci/controller/pcie-rcar.c
index 94ba4fe21923..759c6542c5c8 100644
--- a/drivers/pci/controller/pcie-rcar.c
+++ b/drivers/pci/controller/pcie-rcar.c
@@ -1017,16 +1017,16 @@ err_irq1:
}
static int rcar_pcie_inbound_ranges(struct rcar_pcie *pcie,
- struct of_pci_range *range,
+ struct resource_entry *entry,
int *index)
{
- u64 restype = range->flags;
- u64 cpu_addr = range->cpu_addr;
- u64 cpu_end = range->cpu_addr + range->size;
- u64 pci_addr = range->pci_addr;
+ u64 restype = entry->res->flags;
+ u64 cpu_addr = entry->res->start;
+ u64 cpu_end = entry->res->end;
+ u64 pci_addr = entry->res->start - entry->offset;
u32 flags = LAM_64BIT | LAR_ENABLE;
u64 mask;
- u64 size;
+ u64 size = resource_size(entry->res);
int idx = *index;
if (restype & IORESOURCE_PREFETCH)
@@ -1046,9 +1046,7 @@ static int rcar_pcie_inbound_ranges(struct rcar_pcie *pcie,
unsigned long nr_zeros = __ffs64(cpu_addr);
u64 alignment = 1ULL << nr_zeros;
- size = min(range->size, alignment);
- } else {
- size = range->size;
+ size = min(size, alignment);
}
/* Hardware supports max 4GiB inbound region */
size = min(size, 1ULL << 32);
@@ -1081,30 +1079,19 @@ static int rcar_pcie_inbound_ranges(struct rcar_pcie *pcie,
return 0;
}
-static int rcar_pcie_parse_map_dma_ranges(struct rcar_pcie *pcie,
- struct device_node *np)
+static int rcar_pcie_parse_map_dma_ranges(struct rcar_pcie *pcie)
{
- struct of_pci_range range;
- struct of_pci_range_parser parser;
- int index = 0;
- int err;
-
- if (of_pci_dma_range_parser_init(&parser, np))
- 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(pcie->dev, "0x%08x 0x%016llx..0x%016llx -> 0x%016llx\n",
- range.flags, range.cpu_addr, end, range.pci_addr);
+ struct pci_host_bridge *bridge = pci_host_bridge_from_priv(pcie);
+ struct resource_entry *entry;
+ int index = 0, err = 0;
- err = rcar_pcie_inbound_ranges(pcie, &range, &index);
+ resource_list_for_each_entry(entry, &bridge->dma_ranges) {
+ err = rcar_pcie_inbound_ranges(pcie, entry, &index);
if (err)
- return err;
+ break;
}
- return 0;
+ return err;
}
static const struct of_device_id rcar_pcie_of_match[] = {
@@ -1141,7 +1128,8 @@ static int rcar_pcie_probe(struct platform_device *pdev)
pcie->dev = dev;
platform_set_drvdata(pdev, pcie);
- err = pci_parse_request_of_pci_ranges(dev, &pcie->resources, NULL);
+ err = pci_parse_request_of_pci_ranges(dev, &pcie->resources,
+ &bridge->dma_ranges, NULL);
if (err)
goto err_free_bridge;
@@ -1164,7 +1152,7 @@ static int rcar_pcie_probe(struct platform_device *pdev)
goto err_unmap_msi_irqs;
}
- err = rcar_pcie_parse_map_dma_ranges(pcie, dev->of_node);
+ err = rcar_pcie_parse_map_dma_ranges(pcie);
if (err)
goto err_clk_disable;