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| author | Serge Semin <Sergey.Semin@baikalelectronics.ru> | 2022-06-24 17:39:46 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2022-08-01 15:15:32 -0500 |
| commit | ce06bf570390fb8b41d581e5d594727b51367179 (patch) | |
| tree | 8715233edb39eceeb51eb418b8b118e0516a900c /drivers/pci/controller/dwc/pci-keystone.c | |
| parent | edf408b946d37cc70fbf0db6ab85bbf67dae1894 (diff) | |
| download | linux-ce06bf570390fb8b41d581e5d594727b51367179.tar.bz2 | |
PCI: dwc: Check iATU in/outbound range setup status
Make the DWC PCIe RC/EP safer and more verbose for invalid or failed
inbound and outbound iATU window setups. Silently ignoring iATU regions
setup errors may cause unpredictable errors. For instance if a cfg or IO
window fails to be activated, then any CFG/IO requested won't reach target
PCIe devices and the corresponding accessors will return platform-specific
random values.
[bhelgaas: trim commit log]
Link: https://lore.kernel.org/r/20220624143947.8991-15-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/pci-keystone.c')
0 files changed, 0 insertions, 0 deletions