[PATCH 0/3] Skip subrange map tests on DWC iATU allocation failure

[Christian Bruel]

For platforms with a limited iATU inbound window entries, pci_epc_set_bar()
might fail to allocate the ATU entries for subrange maps requiring more
than 1 slot.
For the dwc controller, this failure is reported with -ENOSPC in
dw_pcie_ep_set_bar(). In this case, the epf test cannot be run and needs
to be skipped.

For other controllers (Rockchip, RCar, Cadence) the .set_bar functions do
not use this error.

Signed-off-by: Christian Bruel <christian.bruel@xxxxxxxxxxx>
---
Christian Bruel (3):
      selftests: pci_endpoint: Skip subrange map test if iATU allocation fails
      PCI: endpoint: pci-epf-test: Handle -ENOSPC in subrange map test
      misc: pci_endpoint_test: Handle -ENOSPC in subrange mapping test case

 drivers/misc/pci_endpoint_test.c                         | 6 +++++-
 drivers/pci/endpoint/functions/pci-epf-test.c            | 3 +++
 tools/testing/selftests/pci_endpoint/pci_endpoint_test.c | 2 ++
 3 files changed, 10 insertions(+), 1 deletion(-)
---
base-commit: 8e5a478b6d6a5bb0a3d52147862b15e4d826af19
change-id: 20260318-skip-bar_subrange-tests-if-enospc-c26f03038e92

Best regards,
-- 
Christian Bruel <christian.bruel@xxxxxxxxxxx>