1/* SPDX-License-Identifier: GPL-2.0-only */
 
 
 
 
 
 
 2
 3#ifndef __ASM_GENERIC_PCI_H
 4#define __ASM_GENERIC_PCI_H
 
 
 5
 6#ifndef PCIBIOS_MIN_IO
 7#define PCIBIOS_MIN_IO		0
 8#endif
 
 9
10#ifndef PCIBIOS_MIN_MEM
11#define PCIBIOS_MIN_MEM		0
12#endif
13
14#ifndef pcibios_assign_all_busses
15/* For bootloaders that do not initialize the PCI bus */
16#define pcibios_assign_all_busses() 1
17#endif
18
19/* Enable generic resource mapping code in drivers/pci/ */
20#define ARCH_GENERIC_PCI_MMAP_RESOURCE
21
22#ifdef CONFIG_PCI_DOMAINS
23static inline int pci_proc_domain(struct pci_bus *bus)
24{
25	/* always show the domain in /proc */
26	return 1;
27}
28#endif /* CONFIG_PCI_DOMAINS */
 
 
 
 
 
 
 
 
29
30#endif /* __ASM_GENERIC_PCI_H */

 1/*
 2 * linux/include/asm-generic/pci.h
 3 *
 4 *  Copyright (C) 2003 Russell King
 5 */
 6#ifndef _ASM_GENERIC_PCI_H
 7#define _ASM_GENERIC_PCI_H
 8
 9static inline struct resource *
10pcibios_select_root(struct pci_dev *pdev, struct resource *res)
11{
12	struct resource *root = NULL;
13
14	if (res->flags & IORESOURCE_IO)
15		root = &ioport_resource;
16	if (res->flags & IORESOURCE_MEM)
17		root = &iomem_resource;
18
19	return root;
20}
 
 
 
 
 
 
 
 
 
21
22#ifndef HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ
23static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
24{
25	return channel ? 15 : 14;
 
26}
27#endif /* HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ */
28
29/*
30 * By default, assume that no iommu is in use and that the PCI
31 * space is mapped to address physical 0.
32 */
33#ifndef PCI_DMA_BUS_IS_PHYS
34#define PCI_DMA_BUS_IS_PHYS	(1)
35#endif
36
37#endif /* _ASM_GENERIC_PCI_H */