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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-ppc64/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-ppc64/pci.h')
-rw-r--r--include/asm-ppc64/pci.h142
1 files changed, 142 insertions, 0 deletions
diff --git a/include/asm-ppc64/pci.h b/include/asm-ppc64/pci.h
new file mode 100644
index 000000000000..6cd593f660a0
--- /dev/null
+++ b/include/asm-ppc64/pci.h
@@ -0,0 +1,142 @@
1#ifndef __PPC64_PCI_H
2#define __PPC64_PCI_H
3#ifdef __KERNEL__
4
5/*
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11
12#include <linux/types.h>
13#include <linux/slab.h>
14#include <linux/string.h>
15#include <linux/dma-mapping.h>
16
17#include <asm/machdep.h>
18#include <asm/scatterlist.h>
19#include <asm/io.h>
20#include <asm/prom.h>
21
22#include <asm-generic/pci-dma-compat.h>
23
24#define PCIBIOS_MIN_IO 0x1000
25#define PCIBIOS_MIN_MEM 0x10000000
26
27struct pci_dev;
28
29#ifdef CONFIG_PPC_ISERIES
30#define pcibios_scan_all_fns(a, b) 0
31#else
32extern int pcibios_scan_all_fns(struct pci_bus *bus, int devfn);
33#endif
34
35static inline void pcibios_set_master(struct pci_dev *dev)
36{
37 /* No special bus mastering setup handling */
38}
39
40static inline void pcibios_penalize_isa_irq(int irq)
41{
42 /* We don't do dynamic PCI IRQ allocation */
43}
44
45#define HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ
46static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
47{
48 if (ppc_md.pci_get_legacy_ide_irq)
49 return ppc_md.pci_get_legacy_ide_irq(dev, channel);
50 return channel ? 15 : 14;
51}
52
53#define HAVE_ARCH_PCI_MWI 1
54static inline int pcibios_prep_mwi(struct pci_dev *dev)
55{
56 /*
57 * We would like to avoid touching the cacheline size or MWI bit
58 * but we cant do that with the current pcibios_prep_mwi
59 * interface. pSeries firmware sets the cacheline size (which is not
60 * the cpu cacheline size in all cases) and hardware treats MWI
61 * the same as memory write. So we dont touch the cacheline size
62 * here and allow the generic code to set the MWI bit.
63 */
64 return 0;
65}
66
67extern unsigned int pcibios_assign_all_busses(void);
68
69extern struct dma_mapping_ops pci_dma_ops;
70
71/* For DAC DMA, we currently don't support it by default, but
72 * we let the platform override this
73 */
74static inline int pci_dac_dma_supported(struct pci_dev *hwdev,u64 mask)
75{
76 if (pci_dma_ops.dac_dma_supported)
77 return pci_dma_ops.dac_dma_supported(&hwdev->dev, mask);
78 return 0;
79}
80
81extern int pci_domain_nr(struct pci_bus *bus);
82
83/* Decide whether to display the domain number in /proc */
84extern int pci_proc_domain(struct pci_bus *bus);
85
86struct vm_area_struct;
87/* Map a range of PCI memory or I/O space for a device into user space */
88int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
89 enum pci_mmap_state mmap_state, int write_combine);
90
91/* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
92#define HAVE_PCI_MMAP 1
93
94/* pci_unmap_{single,page} is not a nop, thus... */
95#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \
96 dma_addr_t ADDR_NAME;
97#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \
98 __u32 LEN_NAME;
99#define pci_unmap_addr(PTR, ADDR_NAME) \
100 ((PTR)->ADDR_NAME)
101#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
102 (((PTR)->ADDR_NAME) = (VAL))
103#define pci_unmap_len(PTR, LEN_NAME) \
104 ((PTR)->LEN_NAME)
105#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
106 (((PTR)->LEN_NAME) = (VAL))
107
108/* The PCI address space does equal the physical memory
109 * address space. The networking and block device layers use
110 * this boolean for bounce buffer decisions.
111 */
112#define PCI_DMA_BUS_IS_PHYS (0)
113
114extern void
115pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
116 struct resource *res);
117
118extern int
119unmap_bus_range(struct pci_bus *bus);
120
121extern int
122remap_bus_range(struct pci_bus *bus);
123
124extern void
125pcibios_fixup_device_resources(struct pci_dev *dev, struct pci_bus *bus);
126
127extern struct pci_controller *init_phb_dynamic(struct device_node *dn);
128
129extern int pci_read_irq_line(struct pci_dev *dev);
130
131extern void pcibios_add_platform_entries(struct pci_dev *dev);
132
133struct file;
134extern pgprot_t pci_phys_mem_access_prot(struct file *file,
135 unsigned long offset,
136 unsigned long size,
137 pgprot_t prot);
138
139
140#endif /* __KERNEL__ */
141
142#endif /* __PPC64_PCI_H */