diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-sh/pci.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-sh/pci.h')
-rw-r--r-- | include/asm-sh/pci.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/include/asm-sh/pci.h b/include/asm-sh/pci.h new file mode 100644 index 000000000000..9c3b63d0105e --- /dev/null +++ b/include/asm-sh/pci.h | |||
@@ -0,0 +1,120 @@ | |||
1 | #ifndef __ASM_SH_PCI_H | ||
2 | #define __ASM_SH_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() 1 | ||
13 | #define pcibios_scan_all_fns(a, b) 0 | ||
14 | |||
15 | /* | ||
16 | * A board can define one or more PCI channels that represent built-in (or | ||
17 | * external) PCI controllers. | ||
18 | */ | ||
19 | struct pci_channel { | ||
20 | struct pci_ops *pci_ops; | ||
21 | struct resource *io_resource; | ||
22 | struct resource *mem_resource; | ||
23 | int first_devfn; | ||
24 | int last_devfn; | ||
25 | }; | ||
26 | |||
27 | /* | ||
28 | * Each board initializes this array and terminates it with a NULL entry. | ||
29 | */ | ||
30 | extern struct pci_channel board_pci_channels[]; | ||
31 | |||
32 | #define PCIBIOS_MIN_IO board_pci_channels->io_resource->start | ||
33 | #define PCIBIOS_MIN_MEM board_pci_channels->mem_resource->start | ||
34 | |||
35 | struct pci_dev; | ||
36 | |||
37 | extern void pcibios_set_master(struct pci_dev *dev); | ||
38 | |||
39 | static inline void pcibios_penalize_isa_irq(int irq) | ||
40 | { | ||
41 | /* We don't do dynamic PCI IRQ allocation */ | ||
42 | } | ||
43 | |||
44 | /* Dynamic DMA mapping stuff. | ||
45 | * SuperH has everything mapped statically like x86. | ||
46 | */ | ||
47 | |||
48 | /* The PCI address space does equal the physical memory | ||
49 | * address space. The networking and block device layers use | ||
50 | * this boolean for bounce buffer decisions. | ||
51 | */ | ||
52 | #define PCI_DMA_BUS_IS_PHYS (1) | ||
53 | |||
54 | #include <linux/types.h> | ||
55 | #include <linux/slab.h> | ||
56 | #include <asm/scatterlist.h> | ||
57 | #include <linux/string.h> | ||
58 | #include <asm/io.h> | ||
59 | |||
60 | /* pci_unmap_{single,page} being a nop depends upon the | ||
61 | * configuration. | ||
62 | */ | ||
63 | #ifdef CONFIG_SH_PCIDMA_NONCOHERENT | ||
64 | #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ | ||
65 | dma_addr_t ADDR_NAME; | ||
66 | #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \ | ||
67 | __u32 LEN_NAME; | ||
68 | #define pci_unmap_addr(PTR, ADDR_NAME) \ | ||
69 | ((PTR)->ADDR_NAME) | ||
70 | #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \ | ||
71 | (((PTR)->ADDR_NAME) = (VAL)) | ||
72 | #define pci_unmap_len(PTR, LEN_NAME) \ | ||
73 | ((PTR)->LEN_NAME) | ||
74 | #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ | ||
75 | (((PTR)->LEN_NAME) = (VAL)) | ||
76 | #else | ||
77 | #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) | ||
78 | #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) | ||
79 | #define pci_unmap_addr(PTR, ADDR_NAME) (0) | ||
80 | #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0) | ||
81 | #define pci_unmap_len(PTR, LEN_NAME) (0) | ||
82 | #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) | ||
83 | #endif | ||
84 | |||
85 | /* Not supporting more than 32-bit PCI bus addresses now, but | ||
86 | * must satisfy references to this function. Change if needed. | ||
87 | */ | ||
88 | #define pci_dac_dma_supported(pci_dev, mask) (0) | ||
89 | |||
90 | /* These macros should be used after a pci_map_sg call has been done | ||
91 | * to get bus addresses of each of the SG entries and their lengths. | ||
92 | * You should only work with the number of sg entries pci_map_sg | ||
93 | * returns, or alternatively stop on the first sg_dma_len(sg) which | ||
94 | * is 0. | ||
95 | */ | ||
96 | #define sg_dma_address(sg) (virt_to_bus((sg)->dma_address)) | ||
97 | #define sg_dma_len(sg) ((sg)->length) | ||
98 | |||
99 | /* Board-specific fixup routines. */ | ||
100 | extern void pcibios_fixup(void); | ||
101 | extern void pcibios_fixup_irqs(void); | ||
102 | |||
103 | #ifdef CONFIG_PCI_AUTO | ||
104 | extern int pciauto_assign_resources(int busno, struct pci_channel *hose); | ||
105 | #endif | ||
106 | |||
107 | static inline void pcibios_add_platform_entries(struct pci_dev *dev) | ||
108 | { | ||
109 | } | ||
110 | |||
111 | #endif /* __KERNEL__ */ | ||
112 | |||
113 | /* generic pci stuff */ | ||
114 | #include <asm-generic/pci.h> | ||
115 | |||
116 | /* generic DMA-mapping stuff */ | ||
117 | #include <asm-generic/pci-dma-compat.h> | ||
118 | |||
119 | #endif /* __ASM_SH_PCI_H */ | ||
120 | |||