> -----Original Message----- > From: Frank Li <frank.li@xxxxxxx> > Sent: Tuesday, September 26, 2023 9:05 AM > From: Guanhua Gao <guanhua.gao@xxxxxxx> > > Set DMA mask and coherent DMA mask to enable 64-bit addressing. > > Signed-off-by: Guanhua Gao <guanhua.gao@xxxxxxx> > Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx> > Signed-off-by: Frank Li <Frank.Li@xxxxxxx> > --- > > Notes: > change from v2 to v3 > - remove check return value of dma_set_mask_and_coherent. 64bit mask > always > return success. > - remove redundate comments > change from v1 to v2 > - Remove 32bit DMA mask set. > > drivers/pci/controller/dwc/pci-layerscape-ep.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/pci/controller/dwc/pci-layerscape-ep.c > b/drivers/pci/controller/dwc/pci-layerscape-ep.c > index de4c1758a6c3..2c2c9aaa8700 100644 > --- a/drivers/pci/controller/dwc/pci-layerscape-ep.c > +++ b/drivers/pci/controller/dwc/pci-layerscape-ep.c > @@ -249,6 +249,8 @@ static int __init ls_pcie_ep_probe(struct > platform_device *pdev) > > pcie->big_endian = of_property_read_bool(dev->of_node, "big- > endian"); > > + dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)); > + Acked-by: Roy Zang <Roy.Zang@xxxxxxx> -R
