xref: /openbmc/linux/arch/arm64/include/asm/pci.h (revision 4da722ca)
1 #ifndef __ASM_PCI_H
2 #define __ASM_PCI_H
3 #ifdef __KERNEL__
4 
5 #include <linux/types.h>
6 #include <linux/slab.h>
7 #include <linux/dma-mapping.h>
8 
9 #include <asm/io.h>
10 
11 #define PCIBIOS_MIN_IO		0x1000
12 #define PCIBIOS_MIN_MEM		0
13 
14 /*
15  * Set to 1 if the kernel should re-assign all PCI bus numbers
16  */
17 #define pcibios_assign_all_busses() \
18 	(pci_has_flag(PCI_REASSIGN_ALL_BUS))
19 
20 /*
21  * PCI address space differs from physical memory address space
22  */
23 #define PCI_DMA_BUS_IS_PHYS	(0)
24 
25 #define ARCH_GENERIC_PCI_MMAP_RESOURCE	1
26 
27 extern int isa_dma_bridge_buggy;
28 
29 #ifdef CONFIG_PCI
30 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
31 {
32 	/* no legacy IRQ on arm64 */
33 	return -ENODEV;
34 }
35 
36 static inline int pci_proc_domain(struct pci_bus *bus)
37 {
38 	return 1;
39 }
40 #endif  /* CONFIG_PCI */
41 
42 #endif  /* __KERNEL__ */
43 #endif  /* __ASM_PCI_H */
44