1 #ifndef __SPARC64_PCI_H
2 #define __SPARC64_PCI_H
3
4 #ifdef __KERNEL__
5
6 #include <linux/dma-mapping.h>
7
8 /* Can be used to override the logic in pci_scan_bus for skipping
9 * already-configured bus numbers - to be used for buggy BIOSes
10 * or architectures with incomplete PCI setup by the loader.
11 */
12 #define pcibios_assign_all_busses() 0
13
14 #define PCIBIOS_MIN_IO 0UL
15 #define PCIBIOS_MIN_MEM 0UL
16
17 #define PCI_IRQ_NONE 0xffffffff
18
pcibios_penalize_isa_irq(int irq,int active)19 static inline void pcibios_penalize_isa_irq(int irq, int active)
20 {
21 /* We don't do dynamic PCI IRQ allocation */
22 }
23
24 /* The PCI address space does not equal the physical memory
25 * address space. The networking and block device layers use
26 * this boolean for bounce buffer decisions.
27 */
28 #define PCI_DMA_BUS_IS_PHYS (0)
29
30 /* PCI IOMMU mapping bypass support. */
31
32 /* PCI 64-bit addressing works for all slots on all controller
33 * types on sparc64. However, it requires that the device
34 * can drive enough of the 64 bits.
35 */
36 #define PCI64_REQUIRED_MASK (~(u64)0)
37 #define PCI64_ADDR_BASE 0xfffc000000000000UL
38
39 #ifdef CONFIG_PCI
pci_dma_burst_advice(struct pci_dev * pdev,enum pci_dma_burst_strategy * strat,unsigned long * strategy_parameter)40 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
41 enum pci_dma_burst_strategy *strat,
42 unsigned long *strategy_parameter)
43 {
44 unsigned long cacheline_size;
45 u8 byte;
46
47 pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte);
48 if (byte == 0)
49 cacheline_size = 1024;
50 else
51 cacheline_size = (int) byte * 4;
52
53 *strat = PCI_DMA_BURST_BOUNDARY;
54 *strategy_parameter = cacheline_size;
55 }
56 #endif
57
58 /* Return the index of the PCI controller for device PDEV. */
59
60 extern int pci_domain_nr(struct pci_bus *bus);
pci_proc_domain(struct pci_bus * bus)61 static inline int pci_proc_domain(struct pci_bus *bus)
62 {
63 return 1;
64 }
65
66 /* Platform support for /proc/bus/pci/X/Y mmap()s. */
67
68 #define HAVE_PCI_MMAP
69 #define HAVE_ARCH_PCI_GET_UNMAPPED_AREA
70 #define get_pci_unmapped_area get_fb_unmapped_area
71
72 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
73 enum pci_mmap_state mmap_state,
74 int write_combine);
75
pci_get_legacy_ide_irq(struct pci_dev * dev,int channel)76 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
77 {
78 return PCI_IRQ_NONE;
79 }
80
81 #define HAVE_ARCH_PCI_RESOURCE_TO_USER
82 extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
83 const struct resource *rsrc,
84 resource_size_t *start, resource_size_t *end);
85 #endif /* __KERNEL__ */
86
87 #endif /* __SPARC64_PCI_H */
88