diff options
| 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 /arch/xtensa | |
| parent | 11df19546fe4a6135cdae62e96a1e25b3fabf6ea (diff) | |
| download | linux-e854d8b2a82ef76521ad2bed68211fde0511d417.tar.gz | |
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/xtensa')
| -rw-r--r-- | arch/xtensa/include/asm/pci.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/xtensa/include/asm/pci.h b/arch/xtensa/include/asm/pci.h index bb5510b28754..e4f366a488d3 100644 --- a/arch/xtensa/include/asm/pci.h +++ b/arch/xtensa/include/asm/pci.h @@ -47,7 +47,8 @@ struct pci_dev; #define PCI_DMA_BUS_IS_PHYS (1) /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */ -#define HAVE_PCI_MMAP 1 +#define HAVE_PCI_MMAP 1 +#define arch_can_pci_mmap_io() 1 #endif /* __KERNEL__ */ |