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PCI: Add pci_mmap_resource_range() and use it for ARM64

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Starting to leave behind the legacy of the pci_mmap_page_range() interface
which takes "user-visible" BAR addresses.  This takes just the resource and
offset.

For now, both APIs coexist and depending on the platform, one is
implemented as a wrapper around the other.

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 13:25:59 +01:00
committed by Bjorn Helgaas
parent f66e225828
commit f719582435
7 changed files with 125 additions and 20 deletions
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2
arch/arm64/include/asm/pci.h
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@@ -22,6 +22,8 @@
*/
#define PCI_DMA_BUS_IS_PHYS (0)
#define ARCH_GENERIC_PCI_MMAP_RESOURCE 1
extern int isa_dma_bridge_buggy;
#ifdef CONFIG_PCI