diff options
| author | Frank Li <Frank.Li@nxp.com> | 2025-03-15 15:15:37 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2025-03-17 14:18:53 -0500 |
| commit | 513ef9c4965b0077037db97f8481d00b5c7ee994 (patch) | |
| tree | 5eb62a92fb1b0ec858e6123d32d5e6569a65815b /drivers/pci/controller/dwc/pcie-designware.h | |
| parent | 8f4a489b370e6612700aa16b9e4373b2d85d7503 (diff) | |
PCI: dwc: Rename cpu_addr to parent_bus_addr for ATU configuration
Rename 'cpu_addr' to 'parent_bus_addr' in the DesignWare ATU configuration.
The ATU translates parent bus addresses to PCI addresses, which are often
the same as CPU addresses but can differ in systems where the bus fabric
translates addresses before passing them to the PCIe controller. This
renaming clarifies the purpose and avoids confusion.
Link: https://lore.kernel.org/r/20250315201548.858189-3-helgaas@kernel.org
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/controller/dwc/pcie-designware.h')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-designware.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h index 501d9ddfea16..d0d8c622a6e8 100644 --- a/drivers/pci/controller/dwc/pcie-designware.h +++ b/drivers/pci/controller/dwc/pcie-designware.h @@ -343,7 +343,7 @@ struct dw_pcie_ob_atu_cfg { u8 func_no; u8 code; u8 routing; - u64 cpu_addr; + u64 parent_bus_addr; u64 pci_addr; u64 size; }; @@ -491,9 +491,10 @@ int dw_pcie_wait_for_link(struct dw_pcie *pci); int dw_pcie_prog_outbound_atu(struct dw_pcie *pci, const struct dw_pcie_ob_atu_cfg *atu); int dw_pcie_prog_inbound_atu(struct dw_pcie *pci, int index, int type, - u64 cpu_addr, u64 pci_addr, u64 size); + u64 parent_bus_addr, u64 pci_addr, u64 size); int dw_pcie_prog_ep_inbound_atu(struct dw_pcie *pci, u8 func_no, int index, - int type, u64 cpu_addr, u8 bar, size_t size); + int type, u64 parent_bus_addr, + u8 bar, size_t size); void dw_pcie_disable_atu(struct dw_pcie *pci, u32 dir, int index); void dw_pcie_setup(struct dw_pcie *pci); void dw_pcie_iatu_detect(struct dw_pcie *pci); |