xref: /openbmc/linux/arch/arm64/include/asm/pci.h (revision 5bd28338)
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 #include <asm-generic/pci-dma-compat.h>
11 
12 #define PCIBIOS_MIN_IO		0x1000
13 #define PCIBIOS_MIN_MEM		0
14 
15 /*
16  * Set to 1 if the kernel should re-assign all PCI bus numbers
17  */
18 #define pcibios_assign_all_busses() \
19 	(pci_has_flag(PCI_REASSIGN_ALL_BUS))
20 
21 /*
22  * PCI address space differs from physical memory address space
23  */
24 #define PCI_DMA_BUS_IS_PHYS	(0)
25 
26 extern int isa_dma_bridge_buggy;
27 
28 #ifdef CONFIG_PCI
29 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
30 {
31 	/* no legacy IRQ on arm64 */
32 	return -ENODEV;
33 }
34 
35 static inline int pci_proc_domain(struct pci_bus *bus)
36 {
37 	return 1;
38 }
39 #endif  /* CONFIG_PCI */
40 
41 #endif  /* __KERNEL__ */
42 #endif  /* __ASM_PCI_H */
43