6.18-stable review patch. If anyone has any objections, please let me know.
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From: Christian Bruel christian.bruel@foss.st.com
[ Upstream commit ff529a9307a03ec03ed9751da053b57149300053 ]
pci_epc_mem_alloc_addr() allocates a CPU address from the ATU window phys base and a page number. Set the ep->page_size so the resulting CPU address is correctly aligned with the ATU required alignment.
Fixes: 151f3d29baf4 ("PCI: stm32-ep: Add PCIe Endpoint support for STM32MP25") Signed-off-by: Christian Bruel christian.bruel@foss.st.com [mani: added fixes tag] Signed-off-by: Manivannan Sadhasivam mani@kernel.org Signed-off-by: Bjorn Helgaas bhelgaas@google.com Link: https://patch.msgid.link/20251114-atu_align_ep-v1-1-88da5366fa04@foss.st.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pci/controller/dwc/pcie-stm32-ep.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/pci/controller/dwc/pcie-stm32-ep.c b/drivers/pci/controller/dwc/pcie-stm32-ep.c index faa6433a784f3..7d48038d576d9 100644 --- a/drivers/pci/controller/dwc/pcie-stm32-ep.c +++ b/drivers/pci/controller/dwc/pcie-stm32-ep.c @@ -214,6 +214,8 @@ static int stm32_add_pcie_ep(struct stm32_pcie *stm32_pcie,
ep->ops = &stm32_pcie_ep_ops;
+ ep->page_size = stm32_pcie_epc_features.align; + ret = dw_pcie_ep_init(ep); if (ret) { dev_err(dev, "Failed to initialize ep: %d\n", ret);