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
19/* The PCI address space does not equal the physical memory
20 * address space.  The networking and block device layers use
21 * this boolean for bounce buffer decisions.
22 */
23#define PCI_DMA_BUS_IS_PHYS	(0)
24
25/* PCI IOMMU mapping bypass support. */
26
27/* PCI 64-bit addressing works for all slots on all controller
28 * types on sparc64.  However, it requires that the device
29 * can drive enough of the 64 bits.
30 */
31#define PCI64_REQUIRED_MASK	(~(u64)0)
32#define PCI64_ADDR_BASE		0xfffc000000000000UL
33
34#ifdef CONFIG_PCI
35static inline void pci_dma_burst_advice(struct pci_dev *pdev,
36					enum pci_dma_burst_strategy *strat,
37					unsigned long *strategy_parameter)
38{
39	unsigned long cacheline_size;
40	u8 byte;
41
42	pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte);
43	if (byte == 0)
44		cacheline_size = 1024;
45	else
46		cacheline_size = (int) byte * 4;
47
48	*strat = PCI_DMA_BURST_BOUNDARY;
49	*strategy_parameter = cacheline_size;
50}
51#endif
52
53/* Return the index of the PCI controller for device PDEV. */
54
55int pci_domain_nr(struct pci_bus *bus);
56static inline int pci_proc_domain(struct pci_bus *bus)
57{
58	return 1;
59}
60
61/* Platform support for /proc/bus/pci/X/Y mmap()s. */
62
63#define HAVE_PCI_MMAP
64#define HAVE_ARCH_PCI_GET_UNMAPPED_AREA
65#define get_pci_unmapped_area get_fb_unmapped_area
66
67int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
68			enum pci_mmap_state mmap_state,
69			int write_combine);
70
71static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
72{
73	return PCI_IRQ_NONE;
74}
75
76#define HAVE_ARCH_PCI_RESOURCE_TO_USER
77void pci_resource_to_user(const struct pci_dev *dev, int bar,
78			  const struct resource *rsrc,
79			  resource_size_t *start, resource_size_t *end);
80#endif /* __KERNEL__ */
81
82#endif /* __SPARC64_PCI_H */
83