mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-28 15:20:41 +00:00
36a66cd6fd
This replaces the generic versions of pcibios_resource_to_bus() and pcibios_bus_to_resource() in asm-generic/pci.h with versions that use pci_resource_to_bus() and pci_bus_to_resource(). The replacements are equivalent except that they can apply host bridge window offsets when the arch has supplied them by using pci_add_resource_offset(). Each arch can convert to using pci_add_resource_offset() individually by removing its device resource fixups from pcibios_fixup_bus() and supplying ARCH_HAS_GENERIC_PCI_OFFSETS. ARCH_HAS_GENERIC_PCI_OFFSETS can be removed after all have converted. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
39 lines
848 B
C
39 lines
848 B
C
/*
|
|
* linux/include/asm-generic/pci.h
|
|
*
|
|
* Copyright (C) 2003 Russell King
|
|
*/
|
|
#ifndef _ASM_GENERIC_PCI_H
|
|
#define _ASM_GENERIC_PCI_H
|
|
|
|
#define ARCH_HAS_GENERIC_PCI_OFFSETS
|
|
|
|
static inline struct resource *
|
|
pcibios_select_root(struct pci_dev *pdev, struct resource *res)
|
|
{
|
|
struct resource *root = NULL;
|
|
|
|
if (res->flags & IORESOURCE_IO)
|
|
root = &ioport_resource;
|
|
if (res->flags & IORESOURCE_MEM)
|
|
root = &iomem_resource;
|
|
|
|
return root;
|
|
}
|
|
|
|
#ifndef HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ
|
|
static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
|
|
{
|
|
return channel ? 15 : 14;
|
|
}
|
|
#endif /* HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ */
|
|
|
|
/*
|
|
* By default, assume that no iommu is in use and that the PCI
|
|
* space is mapped to address physical 0.
|
|
*/
|
|
#ifndef PCI_DMA_BUS_IS_PHYS
|
|
#define PCI_DMA_BUS_IS_PHYS (1)
|
|
#endif
|
|
|
|
#endif /* _ASM_GENERIC_PCI_H */
|