| Message ID | 20240312105152.3457899-9-cassel@kernel.org |
|---|---|
| State | New |
| Headers | show |
| Series | PCI: endpoint: set prefetchable bit for 64-bit BARs | expand |
diff --git a/drivers/pci/controller/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c index c9046e97a1d2..57472cf48997 100644 --- a/drivers/pci/controller/pcie-rockchip-ep.c +++ b/drivers/pci/controller/pcie-rockchip-ep.c @@ -153,7 +153,7 @@ static int rockchip_pcie_ep_set_bar(struct pci_epc *epc, u8 fn, u8 vfn, ctrl = ROCKCHIP_PCIE_CORE_BAR_CFG_CTRL_IO_32BITS; } else { bool is_prefetch = !!(flags & PCI_BASE_ADDRESS_MEM_PREFETCH); - bool is_64bits = sz > SZ_2G; + bool is_64bits = !!(flags & PCI_BASE_ADDRESS_MEM_TYPE_64); if (is_64bits && (bar & 1)) return -EINVAL;
Ever since commit f25b5fae29d4 ("PCI: endpoint: Setting a BAR size > 4 GB is invalid if 64-bit flag is not set") it has been impossible to get the .set_bar() callback with a BAR size > 4 GB, if the BAR was also not requested to be configured as a 64-bit BAR. It is however possible that an EPF driver configures a BAR as 64-bit, even if the requested size is < 4 GB. Respect the requested BAR configuration, just like how it is already repected with regards to the prefetchable bit. Signed-off-by: Niklas Cassel <cassel@kernel.org> --- drivers/pci/controller/pcie-rockchip-ep.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)