This is a note to let you know that I've just added the patch titled
PCI: rockchip: Set address alignment for endpoint mode
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pci-rockchip-set-address-alignment-for-endpoint-mode.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit a9072cf071373984db4fbd54bbb2c45b96c06188
Author: Damien Le Moal <dlemoal@xxxxxxxxxx>
Date: Tue Apr 18 09:46:58 2023 +0200
PCI: rockchip: Set address alignment for endpoint mode
[ Upstream commit 7e6689b34a815bd379dfdbe9855d36f395ef056c ]
The address translation unit of the rockchip EP controller does not use
the lower 8 bits of a PCIe-space address to map local memory. Thus we
must set the align feature field to 256 to let the user know about this
constraint.
Link: https://lore.kernel.org/r/20230418074700.1083505-12-rick.wertenbroek@xxxxxxxxx
Fixes: cf590b078391 ("PCI: rockchip: Add EP driver for Rockchip PCIe controller")
Signed-off-by: Damien Le Moal <dlemoal@xxxxxxxxxx>
Signed-off-by: Rick Wertenbroek <rick.wertenbroek@xxxxxxxxx>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/pci/controller/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c
index 48b4a1c35523f..d6e9013936446 100644
--- a/drivers/pci/controller/pcie-rockchip-ep.c
+++ b/drivers/pci/controller/pcie-rockchip-ep.c
@@ -487,6 +487,7 @@ static const struct pci_epc_features rockchip_pcie_epc_features = {
.linkup_notifier = false,
.msi_capable = true,
.msix_capable = false,
+ .align = 256,
};
static const struct pci_epc_features*
