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| author | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2017-04-19 18:49:06 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2017-04-24 20:53:17 +0200 |
| commit | 3e02dc439b2bcb9911abb1632029a15590ba3b97 (patch) | |
| tree | 5ea6d3a0b10a545e5aa97037a4eb13ab94cfab1f | |
| parent | PCI: xgene: Update PCI config space remap function (diff) | |
| download | linux-3e02dc439b2bcb9911abb1632029a15590ba3b97.tar.xz linux-3e02dc439b2bcb9911abb1632029a15590ba3b97.zip | |
PCI: tegra: Update PCI config space remap function
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 correct memory mapping attributes to map config space
regions to enforce configuration space non-posted writes behaviour.
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
| -rw-r--r-- | drivers/pci/host/pci-tegra.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c index ed8a93f2bfb5..2618f875a600 100644 --- a/drivers/pci/host/pci-tegra.c +++ b/drivers/pci/host/pci-tegra.c @@ -380,7 +380,7 @@ static struct tegra_pcie_bus *tegra_pcie_bus_alloc(struct tegra_pcie *pcie, unsigned int busnr) { struct device *dev = pcie->dev; - pgprot_t prot = pgprot_device(PAGE_KERNEL); + pgprot_t prot = pgprot_noncached(PAGE_KERNEL); phys_addr_t cs = pcie->cs->start; struct tegra_pcie_bus *bus; unsigned int i; @@ -1962,7 +1962,7 @@ static int tegra_pcie_parse_dt(struct tegra_pcie *pcie) rp->pcie = pcie; rp->np = port; - rp->base = devm_ioremap_resource(dev, &rp->regs); + rp->base = devm_pci_remap_cfg_resource(dev, &rp->regs); if (IS_ERR(rp->base)) return PTR_ERR(rp->base); |