lkml.org 
[lkml]   [2017]   [Mar]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 15/22] PCI: hisi: update PCI config space remap function
Date
PCI configuration space should be mapped with a memory region type that
generates on the CPU host bus non-posted write transations. Update the
driver to use the devm_ioremap_nopost* interface to make sure the correct
memory mappings for PCI configuration space are used.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Gabriele Paoloni <gabriele.paoloni@huawei.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Zhou Wang <wangzhou1@hisilicon.com>
---
drivers/pci/dwc/pcie-hisi.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/dwc/pcie-hisi.c b/drivers/pci/dwc/pcie-hisi.c
index fd66a31..66a91b2 100644
--- a/drivers/pci/dwc/pcie-hisi.c
+++ b/drivers/pci/dwc/pcie-hisi.c
@@ -99,7 +99,7 @@ static int hisi_pcie_init(struct pci_config_window *cfg)
return -ENOMEM;
}

- reg_base = devm_ioremap(dev, res->start, resource_size(res));
+ reg_base = devm_ioremap_nopost(dev, res->start, resource_size(res));
if (!reg_base)
return -ENOMEM;

@@ -296,10 +296,9 @@ static int hisi_pcie_probe(struct platform_device *pdev)
}

reg = platform_get_resource_byname(pdev, IORESOURCE_MEM, "rc_dbi");
- pci->dbi_base = devm_ioremap_resource(dev, reg);
+ pci->dbi_base = devm_ioremap_nopost_resource(dev, reg);
if (IS_ERR(pci->dbi_base))
return PTR_ERR(pci->dbi_base);
-
platform_set_drvdata(pdev, hisi_pcie);

ret = hisi_add_pcie_port(hisi_pcie, pdev);
@@ -360,7 +359,7 @@ static int hisi_pcie_platform_init(struct pci_config_window *cfg)
return -EINVAL;
}

- reg_base = devm_ioremap(dev, res->start, resource_size(res));
+ reg_base = devm_ioremap_nopost(dev, res->start, resource_size(res));
if (!reg_base)
return -ENOMEM;

--
2.10.0
\
 
 \ /
  Last update: 2017-03-27 12:32    [W:0.557 / U:0.516 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site