From: Frank Li <Frank.Li@nxp.com>
To: christophe.jaillet@wanadoo.fr
Cc: Frank.li@nxp.com, bhelgaas@google.com, hch@infradead.org,
imx@lists.linux.dev, kw@linux.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, lpieralisi@kernel.org,
minghuan.Lian@nxp.com, mingkai.hu@nxp.com, robh@kernel.org,
roy.zang@nxp.com
Subject: [PATCH v2 1/1] PCI: layerscape-ep: set 64-bit DMA mask
Date: Fri, 22 Sep 2023 00:28:36 -0400 [thread overview]
Message-ID: <20230922042836.3311689-1-Frank.Li@nxp.com> (raw)
From: Guanhua Gao <guanhua.gao@nxp.com>
Set DMA mask and coherent DMA mask to enable 64-bit addressing.
Signed-off-by: Guanhua Gao <guanhua.gao@nxp.com>
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
Notes:
change from v1 to v2
- Remove 32bit DMA mask set.
drivers/pci/controller/dwc/pci-layerscape-ep.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/pci/controller/dwc/pci-layerscape-ep.c b/drivers/pci/controller/dwc/pci-layerscape-ep.c
index de4c1758a6c33..026bf08611e13 100644
--- a/drivers/pci/controller/dwc/pci-layerscape-ep.c
+++ b/drivers/pci/controller/dwc/pci-layerscape-ep.c
@@ -249,6 +249,11 @@ static int __init ls_pcie_ep_probe(struct platform_device *pdev)
pcie->big_endian = of_property_read_bool(dev->of_node, "big-endian");
+ /* set 64-bit DMA mask and coherent DMA mask */
+ ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
+ if (ret)
+ return ret;
+
platform_set_drvdata(pdev, pcie);
ret = dw_pcie_ep_init(&pci->ep);
--
2.34.1
next reply other threads:[~2023-09-22 4:29 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-22 4:28 Frank Li [this message]
2023-09-26 7:27 ` [PATCH v2 1/1] PCI: layerscape-ep: set 64-bit DMA mask Christoph Hellwig
2023-09-26 14:00 ` Frank Li
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