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authorDavid Woodhouse <dwmw@amazon.co.uk>2017-04-12 15:26:03 +0300
committerBjorn Helgaas <bhelgaas@google.com>2017-04-20 16:47:47 +0300
commit903bdbe271217f656d13767d8a3e74b8aabc54c2 (patch)
tree937d43842a212b6e336c22e049e4e23185f2778d
parent35368f80403d32a993587c7f26cd3bcede3ed202 (diff)
downloadlinux-903bdbe271217f656d13767d8a3e74b8aabc54c2.tar.xz
mn10300/PCI: Use generic pci_mmap_resource_range()
This was setting vma->vm_flags |= VM_LOCKED. Not sure why... Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: David Howells <dhowells@redhat.com>
-rw-r--r--arch/mn10300/include/asm/pci.h1
-rw-r--r--arch/mn10300/unit-asb2305/pci-asb2305.c24
2 files changed, 1 insertions, 24 deletions
diff --git a/arch/mn10300/include/asm/pci.h b/arch/mn10300/include/asm/pci.h
index 082b6de90936..d27654902f28 100644
--- a/arch/mn10300/include/asm/pci.h
+++ b/arch/mn10300/include/asm/pci.h
@@ -74,6 +74,7 @@ static inline int pci_controller_num(struct pci_dev *dev)
}
#define HAVE_PCI_MMAP
+#define ARCH_GENERIC_PCI_MMAP_RESOURCE
#endif /* __KERNEL__ */
diff --git a/arch/mn10300/unit-asb2305/pci-asb2305.c b/arch/mn10300/unit-asb2305/pci-asb2305.c
index 4abbbd54ac7d..e0f4617c0c7a 100644
--- a/arch/mn10300/unit-asb2305/pci-asb2305.c
+++ b/arch/mn10300/unit-asb2305/pci-asb2305.c
@@ -210,27 +210,3 @@ void __init pcibios_resource_survey(void)
pcibios_allocate_resources(0);
pcibios_allocate_resources(1);
}
-
-int pci_mmap_page_range(struct pci_dev *dev, int bar,
- struct vm_area_struct *vma,
- enum pci_mmap_state mmap_state, int write_combine)
-{
- unsigned long prot;
-
- /* Leave vm_pgoff as-is, the PCI space address is the physical
- * address on this platform.
- */
- vma->vm_flags |= VM_LOCKED;
-
- prot = pgprot_val(vma->vm_page_prot);
- prot &= ~_PAGE_CACHE;
- vma->vm_page_prot = __pgprot(prot);
-
- /* Write-combine setting is ignored */
- if (io_remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
- vma->vm_end - vma->vm_start,
- vma->vm_page_prot))
- return -EAGAIN;
-
- return 0;
-}