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| author | Rob Herring <robh@kernel.org> | 2020-08-20 21:53:44 -0600 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2020-09-08 16:36:50 +0100 |
| commit | 27e7ed018113e7b96f13100787ba8c0553a63b81 (patch) | |
| tree | b740430acb2c0221b28427d416bf1e816a5a0899 /drivers/pci/controller/dwc/pcie-designware.h | |
| parent | 444ddca52484e95ae3e4dbd9fcb496419141f669 (diff) | |
| download | lwn-27e7ed018113e7b96f13100787ba8c0553a63b81.tar.gz lwn-27e7ed018113e7b96f13100787ba8c0553a63b81.zip | |
PCI: dwc: Add a default pci_ops.map_bus for root port
The Designware root port config space is memory mapped accesses via the
DBI space by default. Add a common implementation
dw_pcie_own_conf_map_bus() for platforms to use.
Link: https://lore.kernel.org/r/20200821035420.380495-5-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: 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 | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h index 8b8ea5f3e7af..01345b8e4171 100644 --- a/drivers/pci/controller/dwc/pcie-designware.h +++ b/drivers/pci/controller/dwc/pcie-designware.h @@ -377,6 +377,8 @@ void dw_pcie_setup_rc(struct pcie_port *pp); int dw_pcie_host_init(struct pcie_port *pp); void dw_pcie_host_deinit(struct pcie_port *pp); int dw_pcie_allocate_domains(struct pcie_port *pp); +void __iomem *dw_pcie_own_conf_map_bus(struct pci_bus *bus, unsigned int devfn, + int where); #else static inline irqreturn_t dw_handle_msi_irq(struct pcie_port *pp) { @@ -408,6 +410,12 @@ static inline int dw_pcie_allocate_domains(struct pcie_port *pp) { return 0; } +static inline void __iomem *dw_pcie_own_conf_map_bus(struct pci_bus *bus, + unsigned int devfn, + int where) +{ + return NULL; +} #endif #ifdef CONFIG_PCIE_DW_EP |