[PATCH v2 0/4] PCI: dwc: Clean up iatu index mess

Niklas Cassel
2026-01-22T22:29:22Z

This series tries to clean up the iatu index mess, by treating
iatu indexing for outbound and inbound address translation in
a consistent way (increment the index after assignment, and only
if the function call succeeded).

Changes since v1:
-Added patch 4/4 from Krishna which fixes iatu indexing when using ECAM.
I've adapted the patch to my clean up series and fixed some bugs.

Link to v1:
https://lore.kernel.org/linux-pci/20260122145411.453291-4-cassel@kernel.org/

Krishna Chaitanya Chundru (1):
PCI: dwc: Fix missing iATU setup when ECAM is enabled

Niklas Cassel (3):
PCI: dwc: Fix msg_atu_index assignment
PCI: dwc: Improve msg_atu_index error handling
PCI: dwc: Clean up iatu index usage in dw_pcie_iatu_setup()

.../pci/controller/dwc/pcie-designware-host.c | 92 +++++++++++--------
drivers/pci/controller/dwc/pcie-designware.c | 6 ++
2 files changed, 61 insertions(+), 37 deletions(-)

base-commit: e9a5415adb209f86a05e55b850127ada82e070f1
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2.52.0