xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

PCI: Add I/O BAR support to generic pci_mmap_resource_range()

Browse Source 
This will need to call into an arch-provided pci_iobar_pfn() function.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
David Woodhouse
2017-04-12 13:26:08 +01:00
committed by Bjorn Helgaas
parent 5c2d5ce2ab
commit 2bea36fd1a
2 changed files with 12 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
include/linux/pci.h
View File

@@ -1648,8 +1648,12 @@ int pci_mmap_page_range(struct pci_dev *pdev, int bar,
#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
#define pci_iobar_pfn(pdev, bar, vma) (-EINVAL)
#else
int pci_iobar_pfn(struct pci_dev *pdev, int bar, struct vm_area_struct *vma);
#endif
#ifndef pci_root_bus_fwnode