diff options
| author | David Woodhouse <dwmw@amazon.co.uk> | 2017-04-12 14:25:56 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2017-04-18 20:02:26 +0200 |
| commit | e854d8b2a82ef76521ad2bed68211fde0511d417 (patch) | |
| tree | a6743218f245ac24fb5f6ca3cdba9fb20684a782 /arch/powerpc | |
| parent | PCI: Move multiple declarations of pci_mmap_page_range() to <linux/pci.h> (diff) | |
| download | linux-e854d8b2a82ef76521ad2bed68211fde0511d417.tar.xz linux-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 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/include/asm/pci.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h index 55887d171205..c8975dac535f 100644 --- a/arch/powerpc/include/asm/pci.h +++ b/arch/powerpc/include/asm/pci.h @@ -80,6 +80,7 @@ struct vm_area_struct; /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() and it does WC */ #define HAVE_PCI_MMAP 1 +#define arch_can_pci_mmap_io() 1 #define arch_can_pci_mmap_wc() 1 extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val, |