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| author | Serge Semin <Sergey.Semin@baikalelectronics.ru> | 2022-06-24 17:39:45 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2022-08-01 15:15:32 -0500 |
| commit | edf408b946d37cc70fbf0db6ab85bbf67dae1894 (patch) | |
| tree | 275dcd54ccc93a42be14ddeced78c7815d1c4799 /drivers/pci/controller/dwc/pcie-designware.h | |
| parent | 89473aa9ab261948ed13b16effe841a675efed77 (diff) | |
| download | linux-edf408b946d37cc70fbf0db6ab85bbf67dae1894.tar.bz2 | |
PCI: dwc: Validate iATU outbound mappings against hardware constraints
Make __dw_pcie_prog_outbound_atu() check the requested region base and size
against what the hardware can support. Return error if the region is not
correctly aligned or of a supported size.
[bhelgaas: commit log]
Link: https://lore.kernel.org/r/20220624143947.8991-14-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Diffstat (limited to 'drivers/pci/controller/dwc/pcie-designware.h')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-designware.h | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h index 25c86771c810..60f1ddc54933 100644 --- a/drivers/pci/controller/dwc/pcie-designware.h +++ b/drivers/pci/controller/dwc/pcie-designware.h @@ -304,12 +304,10 @@ void dw_pcie_write_dbi2(struct dw_pcie *pci, u32 reg, size_t size, u32 val); int dw_pcie_link_up(struct dw_pcie *pci); void dw_pcie_upconfig_setup(struct dw_pcie *pci); int dw_pcie_wait_for_link(struct dw_pcie *pci); -void dw_pcie_prog_outbound_atu(struct dw_pcie *pci, int index, - int type, u64 cpu_addr, u64 pci_addr, - u64 size); -void dw_pcie_prog_ep_outbound_atu(struct dw_pcie *pci, u8 func_no, int index, - int type, u64 cpu_addr, u64 pci_addr, - u64 size); +int dw_pcie_prog_outbound_atu(struct dw_pcie *pci, int index, int type, + u64 cpu_addr, u64 pci_addr, u64 size); +int dw_pcie_prog_ep_outbound_atu(struct dw_pcie *pci, u8 func_no, int index, + int type, u64 cpu_addr, u64 pci_addr, u64 size); int dw_pcie_prog_inbound_atu(struct dw_pcie *pci, u8 func_no, int index, int type, u64 cpu_addr, u8 bar); void dw_pcie_disable_atu(struct dw_pcie *pci, u32 dir, int index); |