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| author | Liviu Dudau <Liviu.Dudau@arm.com> | 2014-09-29 16:29:31 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2014-10-01 01:08:57 +0200 |
| commit | d1e6dc91b532d3d3dbbd0fa356b775ca320dc2c2 (patch) | |
| tree | 8470f782b1a12d70ccae0ce4ea983e5977a44c50 /arch/arm64/include/asm/pci.h | |
| parent | PCI: Add pci_remap_iospace() to map bus I/O resources (diff) | |
| download | linux-d1e6dc91b532d3d3dbbd0fa356b775ca320dc2c2.tar.xz linux-d1e6dc91b532d3d3dbbd0fa356b775ca320dc2c2.zip | |
arm64: Add architectural support for PCI
Use the generic PCI domain and OF functions to provide support for PCI
on arm64.
[bhelgaas: Change comments to use generic PCI, not just PCIe. Nothing at
this level is PCIe-specific.]
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/pci.h')
| -rw-r--r-- | arch/arm64/include/asm/pci.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/pci.h b/arch/arm64/include/asm/pci.h new file mode 100644 index 000000000000..872ba939fcb2 --- /dev/null +++ b/arch/arm64/include/asm/pci.h @@ -0,0 +1,37 @@ +#ifndef __ASM_PCI_H +#define __ASM_PCI_H +#ifdef __KERNEL__ + +#include <linux/types.h> +#include <linux/slab.h> +#include <linux/dma-mapping.h> + +#include <asm/io.h> +#include <asm-generic/pci-bridge.h> +#include <asm-generic/pci-dma-compat.h> + +#define PCIBIOS_MIN_IO 0x1000 +#define PCIBIOS_MIN_MEM 0 + +/* + * Set to 1 if the kernel should re-assign all PCI bus numbers + */ +#define pcibios_assign_all_busses() \ + (pci_has_flag(PCI_REASSIGN_ALL_BUS)) + +/* + * PCI address space differs from physical memory address space + */ +#define PCI_DMA_BUS_IS_PHYS (0) + +extern int isa_dma_bridge_buggy; + +#ifdef CONFIG_PCI +static inline int pci_proc_domain(struct pci_bus *bus) +{ + return 1; +} +#endif /* CONFIG_PCI */ + +#endif /* __KERNEL__ */ +#endif /* __ASM_PCI_H */ |