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Sam Ravnborgf5e706a2008-07-17 21:55:51 -07001#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
Sam Ravnborgf5e706a2008-07-17 21:55:51 -070013
14#define PCIBIOS_MIN_IO 0UL
15#define PCIBIOS_MIN_MEM 0UL
16
17#define PCI_IRQ_NONE 0xffffffff
18
Sam Ravnborgf5e706a2008-07-17 21:55:51 -070019/* 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
Sam Ravnborgf5e706a2008-07-17 21:55:51 -070025/* 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 */
FUJITA Tomonori4ad9b202010-10-27 15:34:47 -070031#define PCI64_REQUIRED_MASK (~(u64)0)
Sam Ravnborgf5e706a2008-07-17 21:55:51 -070032#define PCI64_ADDR_BASE 0xfffc000000000000UL
33
Sam Ravnborgf5e706a2008-07-17 21:55:51 -070034#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
55extern int 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
67extern int 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
Sam Ravnborgf5e706a2008-07-17 21:55:51 -070071static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
72{
73 return PCI_IRQ_NONE;
74}
75
Sam Ravnborgf5e706a2008-07-17 21:55:51 -070076#define HAVE_ARCH_PCI_RESOURCE_TO_USER
77extern void 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 */