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| author |   David Woodhouse <dwmw@amazon.co.uk> | 2017-04-12 13:25:56 +0100 |
|---|---|---|
| committer |   Bjorn Helgaas <bhelgaas@google.com> | 2017-04-18 13:02:26 -0500 |
| commit | e854d8b2a82ef76521ad2bed68211fde0511d417 (patch) | |
| tree | a6743218f245ac24fb5f6ca3cdba9fb20684a782 /include/linux/pci.h | |
| parent | PCI: Move multiple declarations of pci_mmap_page_range() to <linux/pci.h> (diff) | |
| download | linux-dev-e854d8b2a82ef76521ad2bed68211fde0511d417.tar.xz linux-dev-e854d8b2a82ef76521ad2bed68211fde0511d417.zip | |
PCI: Add arch_can_pci_mmap_io() on architectures which can mmap() I/O space
This is relatively esoteric, and knowing that we don't have it makes life
easier in some cases rather than just an eventual -EINVAL from
pci_mmap_page_range().
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index e7bb4b62cc97..590cfcf6acf5 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1636,6 +1636,9 @@ int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, #ifndef arch_can_pci_mmap_wc #define arch_can_pci_mmap_wc() 0 #endif +#ifndef arch_can_pci_mmap_io +#define arch_can_pci_mmap_io() 0 +#endif #ifndef pci_root_bus_fwnode #define pci_root_bus_fwnode(bus) NULL |