diff options
| author |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2017-01-30 18:11:55 +1100 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2017-01-31 13:54:17 +1100 |
| commit | 38e9d36bc149932964dcd25818c7f7283239592d (patch) | |
| tree | 4ba2b9425271f7c507c77b3be591f8099f7cb8a9 /arch/powerpc/include/asm/isa-bridge.h | |
| parent | Documentation:powerpc: Add device-tree bindings for power-mgt (diff) | |
| download | linux-dev-38e9d36bc149932964dcd25818c7f7283239592d.tar.xz linux-dev-38e9d36bc149932964dcd25818c7f7283239592d.zip | |
powerpc: Move isa bridge definitions to separate include
We'll be adding non-PCI isa bridge support so let's not
have all the definition in pci-bridge.h
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/isa-bridge.h')
| -rw-r--r-- | arch/powerpc/include/asm/isa-bridge.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/isa-bridge.h b/arch/powerpc/include/asm/isa-bridge.h new file mode 100644 index 000000000000..94d9c1c9706d --- /dev/null +++ b/arch/powerpc/include/asm/isa-bridge.h @@ -0,0 +1,28 @@ +#ifndef __ISA_BRIDGE_H +#define __ISA_BRIDGE_H + +#ifdef CONFIG_PPC64 + +extern void isa_bridge_find_early(struct pci_controller *hose); + +static inline int isa_vaddr_is_ioport(void __iomem *address) +{ + /* Check if address hits the reserved legacy IO range */ + unsigned long ea = (unsigned long)address; + return ea >= ISA_IO_BASE && ea < ISA_IO_END; +} + +#else + +static inline int isa_vaddr_is_ioport(void __iomem *address) +{ + /* No specific ISA handling on ppc32 at this stage, it + * all goes through PCI + */ + return 0; +} + +#endif + +#endif /* __ISA_BRIDGE_H */ + |