Subversion Repositories shark

Rev

Rev 422 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
422 giacomo 1
#ifndef __i386_PCI_H
2
#define __i386_PCI_H
3
 
4
#include <linux/config.h>
5
 
6
#ifdef __KERNEL__
7
#include <linux/mm.h>           /* for struct page */
8
 
9
/* Can be used to override the logic in pci_scan_bus for skipping
10
   already-configured bus numbers - to be used for buggy BIOSes
11
   or architectures with incomplete PCI setup by the loader */
12
 
13
#ifdef CONFIG_PCI
14
extern unsigned int pcibios_assign_all_busses(void);
15
#else
16
#define pcibios_assign_all_busses()     0
17
#endif
18
 
19
extern unsigned long pci_mem_start;
20
#define PCIBIOS_MIN_IO          0x1000
21
#define PCIBIOS_MIN_MEM         (pci_mem_start)
22
 
23
#define PCIBIOS_MIN_CARDBUS_IO  0x4000
24
 
25
void pcibios_config_init(void);
26
struct pci_bus * pcibios_scan_root(int bus);
27
 
28
void pcibios_set_master(struct pci_dev *dev);
29
void pcibios_penalize_isa_irq(int irq);
30
struct irq_routing_table *pcibios_get_irq_routing_table(void);
31
int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
32
 
33
/* Dynamic DMA mapping stuff.
34
 * i386 has everything mapped statically.
35
 */
36
 
37
#include <linux/types.h>
38
#include <linux/slab.h>
39
#include <asm/scatterlist.h>
40
#include <linux/string.h>
41
#include <asm/io.h>
42
 
43
struct pci_dev;
44
 
45
/* The PCI address space does equal the physical memory
46
 * address space.  The networking and block device layers use
47
 * this boolean for bounce buffer decisions.
48
 */
49
#define PCI_DMA_BUS_IS_PHYS     (1)
50
 
51
/* pci_unmap_{page,single} is a nop so... */
52
#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
53
#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
54
#define pci_unmap_addr(PTR, ADDR_NAME)          (0)
55
#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
56
#define pci_unmap_len(PTR, LEN_NAME)            (0)
57
#define pci_unmap_len_set(PTR, LEN_NAME, VAL)   do { } while (0)
58
 
59
/* This is always fine. */
60
#define pci_dac_dma_supported(pci_dev, mask)    (1)
61
 
62
static __inline__ dma64_addr_t
63
pci_dac_page_to_dma(struct pci_dev *pdev, struct page *page, unsigned long offset, int direction)
64
{
65
        return ((dma64_addr_t) page_to_phys(page) +
66
                (dma64_addr_t) offset);
67
}
68
 
69
static __inline__ struct page *
70
pci_dac_dma_to_page(struct pci_dev *pdev, dma64_addr_t dma_addr)
71
{
72
        return pfn_to_page(dma_addr >> PAGE_SHIFT);
73
}
74
 
75
static __inline__ unsigned long
76
pci_dac_dma_to_offset(struct pci_dev *pdev, dma64_addr_t dma_addr)
77
{
78
        return (dma_addr & ~PAGE_MASK);
79
}
80
 
81
static __inline__ void
82
pci_dac_dma_sync_single(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction)
83
{
84
        flush_write_buffers();
85
}
86
 
87
#define HAVE_PCI_MMAP
88
extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
89
                               enum pci_mmap_state mmap_state, int write_combine);
90
 
91
#endif /* __KERNEL__ */
92
 
93
/* implement the pci_ DMA API in terms of the generic device dma_ one */
94
#include <asm-generic/pci-dma-compat.h>
95
 
96
/* generic pci stuff */
97
#include <asm-generic/pci.h>
98
 
99
#endif /* __i386_PCI_H */