PCI: dwc: Validate iATU outbound mappings against hardware constraints

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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>

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Serge Semin 2022-06-24 17:39:45 +03:00 • committed by Bjorn Helgaas

parent 89473aa9ab

commit edf408b946

2 changed files with 29 additions and 19 deletions

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38

drivers/pci/controller/dwc/pcie-designware.c

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10

drivers/pci/controller/dwc/pcie-designware.h

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