tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef __ASM_CRIS_PCI_H
2#define __ASM_CRIS_PCI_H
3
4
5#ifdef __KERNEL__
6#include <linux/mm.h> /* for struct page */
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(void) 1
13
14extern unsigned long pci_mem_start;
15#define PCIBIOS_MIN_IO 0x1000
16#define PCIBIOS_MIN_MEM 0x10000000
17
18#define PCIBIOS_MIN_CARDBUS_IO 0x4000
19
20void pcibios_config_init(void);
21struct pci_bus * pcibios_scan_root(int bus);
22int pcibios_assign_resources(void);
23
24void pcibios_set_master(struct pci_dev *dev);
25void pcibios_penalize_isa_irq(int irq);
26struct irq_routing_table *pcibios_get_irq_routing_table(void);
27int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
28
29/* Dynamic DMA mapping stuff.
30 * i386 has everything mapped statically.
31 */
32
33#include <linux/types.h>
34#include <linux/slab.h>
35#include <asm/scatterlist.h>
36#include <linux/string.h>
37#include <asm/io.h>
38
39struct pci_dev;
40
41/* The PCI address space does equal the physical memory
42 * address space. The networking and block device layers use
43 * this boolean for bounce buffer decisions.
44 */
45#define PCI_DMA_BUS_IS_PHYS (1)
46
47/* pci_unmap_{page,single} is a nop so... */
48#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
49#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
50#define pci_unmap_addr(PTR, ADDR_NAME) (0)
51#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
52#define pci_unmap_len(PTR, LEN_NAME) (0)
53#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
54
55/* This is always fine. */
56#define pci_dac_dma_supported(pci_dev, mask) (1)
57
58static inline dma64_addr_t
59pci_dac_page_to_dma(struct pci_dev *pdev, struct page *page, unsigned long offset, int direction)
60{
61 return ((dma64_addr_t) page_to_phys(page) +
62 (dma64_addr_t) offset);
63}
64
65static inline struct page *
66pci_dac_dma_to_page(struct pci_dev *pdev, dma64_addr_t dma_addr)
67{
68 return pfn_to_page(dma_addr >> PAGE_SHIFT);
69}
70
71static inline unsigned long
72pci_dac_dma_to_offset(struct pci_dev *pdev, dma64_addr_t dma_addr)
73{
74 return (dma_addr & ~PAGE_MASK);
75}
76
77static inline void
78pci_dac_dma_sync_single_for_cpu(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction)
79{
80}
81
82static inline void
83pci_dac_dma_sync_single_for_device(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction)
84{
85}
86
87#define HAVE_PCI_MMAP
88extern 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
92static inline void pcibios_add_platform_entries(struct pci_dev *dev)
93{
94}
95
96#endif /* __KERNEL__ */
97
98/* implement the pci_ DMA API in terms of the generic device dma_ one */
99#include <asm-generic/pci-dma-compat.h>
100
101/* generic pci stuff */
102#include <asm-generic/pci.h>
103
104#endif /* __ASM_CRIS_PCI_H */