xref: /openbmc/linux/arch/arm64/include/asm/pci.h (revision f7195824)
1d1e6dc91SLiviu Dudau #ifndef __ASM_PCI_H
2d1e6dc91SLiviu Dudau #define __ASM_PCI_H
3d1e6dc91SLiviu Dudau #ifdef __KERNEL__
4d1e6dc91SLiviu Dudau 
5d1e6dc91SLiviu Dudau #include <linux/types.h>
6d1e6dc91SLiviu Dudau #include <linux/slab.h>
7d1e6dc91SLiviu Dudau #include <linux/dma-mapping.h>
8d1e6dc91SLiviu Dudau 
9d1e6dc91SLiviu Dudau #include <asm/io.h>
10d1e6dc91SLiviu Dudau 
11d1e6dc91SLiviu Dudau #define PCIBIOS_MIN_IO		0x1000
12d1e6dc91SLiviu Dudau #define PCIBIOS_MIN_MEM		0
13d1e6dc91SLiviu Dudau 
14d1e6dc91SLiviu Dudau /*
15d1e6dc91SLiviu Dudau  * Set to 1 if the kernel should re-assign all PCI bus numbers
16d1e6dc91SLiviu Dudau  */
17d1e6dc91SLiviu Dudau #define pcibios_assign_all_busses() \
18d1e6dc91SLiviu Dudau 	(pci_has_flag(PCI_REASSIGN_ALL_BUS))
19d1e6dc91SLiviu Dudau 
20d1e6dc91SLiviu Dudau /*
21d1e6dc91SLiviu Dudau  * PCI address space differs from physical memory address space
22d1e6dc91SLiviu Dudau  */
23d1e6dc91SLiviu Dudau #define PCI_DMA_BUS_IS_PHYS	(0)
24d1e6dc91SLiviu Dudau 
25f7195824SDavid Woodhouse #define ARCH_GENERIC_PCI_MMAP_RESOURCE	1
26f7195824SDavid Woodhouse 
27d1e6dc91SLiviu Dudau extern int isa_dma_bridge_buggy;
28d1e6dc91SLiviu Dudau 
29d1e6dc91SLiviu Dudau #ifdef CONFIG_PCI
30a9cb97feSHanjun Guo static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
31a9cb97feSHanjun Guo {
32a9cb97feSHanjun Guo 	/* no legacy IRQ on arm64 */
33a9cb97feSHanjun Guo 	return -ENODEV;
34a9cb97feSHanjun Guo }
35a9cb97feSHanjun Guo 
36d1e6dc91SLiviu Dudau static inline int pci_proc_domain(struct pci_bus *bus)
37d1e6dc91SLiviu Dudau {
38d1e6dc91SLiviu Dudau 	return 1;
39d1e6dc91SLiviu Dudau }
40d1e6dc91SLiviu Dudau #endif  /* CONFIG_PCI */
41d1e6dc91SLiviu Dudau 
42d1e6dc91SLiviu Dudau #endif  /* __KERNEL__ */
43d1e6dc91SLiviu Dudau #endif  /* __ASM_PCI_H */
44