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authorDavid Woodhouse <dwmw@amazon.co.uk>2017-04-12 15:25:55 +0300
committerBjorn Helgaas <bhelgaas@google.com>2017-04-18 21:02:11 +0300
commit11df19546fe4a6135cdae62e96a1e25b3fabf6ea (patch)
tree12f07a5a618c1fd9dcdddc918b97a00a45192489 /include/linux/pci.h
parentae749c7ab475de2c9c427058db19921c91846e89 (diff)
downloadlinux-11df19546fe4a6135cdae62e96a1e25b3fabf6ea.tar.xz
PCI: Move multiple declarations of pci_mmap_page_range() to <linux/pci.h>
We can declare it <linux/pci.h> even on platforms where it isn't going to be defined. There's no need to have it littered through the various <asm/pci.h> files. 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.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h
index e614fb42d8bb..e7bb4b62cc97 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1626,6 +1626,13 @@ static inline int pci_get_new_domain_nr(void) { return -ENOSYS; }
#include <asm/pci.h>
+/* Map a range of PCI memory or I/O space for a device into user space.
+ * Architectures provide this function if they set HAVE_PCI_MMAP, and
+ * it accepts the 'write_combine' argument when arch_can_pci_mmap_wc()
+ * evaluates to nonzero. */
+int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
+ enum pci_mmap_state mmap_state, int write_combine);
+
#ifndef arch_can_pci_mmap_wc
#define arch_can_pci_mmap_wc() 0
#endif