xref: /openbmc/linux/arch/arm/include/asm/pci.h (revision b34e08d5)
1 #ifndef ASMARM_PCI_H
2 #define ASMARM_PCI_H
3 
4 #ifdef __KERNEL__
5 #include <asm-generic/pci-dma-compat.h>
6 #include <asm-generic/pci-bridge.h>
7 
8 #include <asm/mach/pci.h> /* for pci_sys_data */
9 
10 extern unsigned long pcibios_min_io;
11 #define PCIBIOS_MIN_IO pcibios_min_io
12 extern unsigned long pcibios_min_mem;
13 #define PCIBIOS_MIN_MEM pcibios_min_mem
14 
15 static inline int pcibios_assign_all_busses(void)
16 {
17 	return pci_has_flag(PCI_REASSIGN_ALL_RSRC);
18 }
19 
20 #ifdef CONFIG_PCI_DOMAINS
21 static inline int pci_domain_nr(struct pci_bus *bus)
22 {
23 	struct pci_sys_data *root = bus->sysdata;
24 
25 	return root->domain;
26 }
27 
28 static inline int pci_proc_domain(struct pci_bus *bus)
29 {
30 	return pci_domain_nr(bus);
31 }
32 #endif /* CONFIG_PCI_DOMAINS */
33 
34 static inline void pcibios_penalize_isa_irq(int irq, int active)
35 {
36 	/* We don't do dynamic PCI IRQ allocation */
37 }
38 
39 /*
40  * The PCI address space does equal the physical memory address space.
41  * The networking and block device layers use this boolean for bounce
42  * buffer decisions.
43  */
44 #define PCI_DMA_BUS_IS_PHYS     (1)
45 
46 #ifdef CONFIG_PCI
47 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
48 					enum pci_dma_burst_strategy *strat,
49 					unsigned long *strategy_parameter)
50 {
51 	*strat = PCI_DMA_BURST_INFINITY;
52 	*strategy_parameter = ~0UL;
53 }
54 #endif
55 
56 #define HAVE_PCI_MMAP
57 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
58                                enum pci_mmap_state mmap_state, int write_combine);
59 
60 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
61 {
62 	return channel ? 15 : 14;
63 }
64 
65 #endif /* __KERNEL__ */
66 
67 #endif
68