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| author | Ingo Molnar <mingo@kernel.org> | 2015-09-13 12:25:35 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-09-13 12:25:35 +0300 |
| commit | d2bb1d42b95fa88f092623bbb8ed533f316b6a3c (patch) | |
| tree | fb796db809a266906fa358f24f1c07ced4df33f0 /drivers/pci/pci.c | |
| parent | 3bd7617596df560e2cb22ad97888cb42dae39d02 (diff) | |
| parent | 6ff33f3902c3b1c5d0db6b1e2c70b6d76fba357f (diff) | |
| download | linux-d2bb1d42b95fa88f092623bbb8ed533f316b6a3c.tar.xz | |
Merge tag 'v4.3-rc1' into perf/core, to refresh the tree
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index cc76238c86fb..6a9a1116f1eb 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -138,6 +138,20 @@ void __iomem *pci_ioremap_bar(struct pci_dev *pdev, int bar) return ioremap_nocache(res->start, resource_size(res)); } EXPORT_SYMBOL_GPL(pci_ioremap_bar); + +void __iomem *pci_ioremap_wc_bar(struct pci_dev *pdev, int bar) +{ + /* + * Make sure the BAR is actually a memory resource, not an IO resource + */ + if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) { + WARN_ON(1); + return NULL; + } + return ioremap_wc(pci_resource_start(pdev, bar), + pci_resource_len(pdev, bar)); +} +EXPORT_SYMBOL_GPL(pci_ioremap_wc_bar); #endif |