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Groups > linux.kernel > #1609689

[PATCH v2 14/22] PCI: iproc-platform: update PCI config space remap function

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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>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Jon Mason <jonmason@broadcom.com>
---
 drivers/pci/host/pcie-iproc-platform.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/host/pcie-iproc-platform.c b/drivers/pci/host/pcie-iproc-platform.c
index f4909bb..b13d4a2 100644
--- a/drivers/pci/host/pcie-iproc-platform.c
+++ b/drivers/pci/host/pcie-iproc-platform.c
@@ -67,7 +67,8 @@ static int iproc_pcie_pltfm_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	pcie->base = devm_ioremap(dev, reg.start, resource_size(&reg));
+	pcie->base = devm_ioremap_nopost(dev, reg.start,
+					 resource_size(&reg));
 	if (!pcie->base) {
 		dev_err(dev, "unable to map controller registers\n");
 		return -ENOMEM;
-- 
2.10.0

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Thread

[PATCH v2 00/22] PCI: fix config and I/O Address space memory mappings Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-03-27 12:00 +0200
  [PATCH v2 06/22] ARM: implement ioremap_nopost() interface Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-03-27 12:10 +0200
    Re: [PATCH v2 06/22] ARM: implement ioremap_nopost() interface Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-03-31 13:10 +0200
      Re: [PATCH v2 06/22] ARM: implement ioremap_nopost() interface Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-04-05 12:30 +0200
  [PATCH v2 21/22] PCI: keystone-dw: update PCI config space remap function Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-03-27 12:10 +0200
  [PATCH v2 10/22] PCI: xilinx-nwl: update PCI config space remap function Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-03-27 12:10 +0200
  [PATCH v2 11/22] PCI: spear13xx: update PCI config space remap function Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-03-27 12:10 +0200
  [PATCH v2 19/22] PCI: tegra: update PCI config space remap function Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-03-27 12:10 +0200
  [PATCH v2 12/22] PCI: rockchip: update PCI config space remap function Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-03-27 12:10 +0200
  [PATCH v2 18/22] PCI: xgene: update PCI config space remap function Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-03-27 12:10 +0200
  [PATCH v2 14/22] PCI: iproc-platform: update PCI config space remap function Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-03-27 12:10 +0200
  [PATCH v2 22/22] PCI: versatile: update PCI config space remap function Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-03-27 12:10 +0200
  [PATCH v2 17/22] PCI: armada8k: update PCI config space remap function Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-03-27 12:10 +0200
  [PATCH v2 15/22] PCI: hisi: update PCI config space remap function Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-03-27 12:10 +0200
  [PATCH v2 20/22] PCI: layerscape: update PCI config space remap function Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-03-27 12:10 +0200
  [PATCH v2 13/22] PCI: qcom: update PCI config space remap function Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-03-27 12:10 +0200

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