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-rw-r--r--include/asm-x86/pci_64.h126
1 files changed, 126 insertions, 0 deletions
diff --git a/include/asm-x86/pci_64.h b/include/asm-x86/pci_64.h
new file mode 100644
index 000000000000..5da8cb0c0599
--- /dev/null
+++ b/include/asm-x86/pci_64.h
@@ -0,0 +1,126 @@
1#ifndef __x8664_PCI_H
2#define __x8664_PCI_H
3
4#include <asm/io.h>
5
6#ifdef __KERNEL__
7
8struct pci_sysdata {
9 int node; /* NUMA node */
10 void* iommu; /* IOMMU private data */
11};
12
13extern struct pci_bus *pci_scan_bus_with_sysdata(int busno);
14
15#ifdef CONFIG_CALGARY_IOMMU
16static inline void* pci_iommu(struct pci_bus *bus)
17{
18 struct pci_sysdata *sd = bus->sysdata;
19 return sd->iommu;
20}
21
22static inline void set_pci_iommu(struct pci_bus *bus, void *val)
23{
24 struct pci_sysdata *sd = bus->sysdata;
25 sd->iommu = val;
26}
27#endif /* CONFIG_CALGARY_IOMMU */
28
29#include <linux/mm.h> /* for struct page */
30
31/* Can be used to override the logic in pci_scan_bus for skipping
32 already-configured bus numbers - to be used for buggy BIOSes
33 or architectures with incomplete PCI setup by the loader */
34
35#ifdef CONFIG_PCI
36extern unsigned int pcibios_assign_all_busses(void);
37#else
38#define pcibios_assign_all_busses() 0
39#endif
40#define pcibios_scan_all_fns(a, b) 0
41
42extern unsigned long pci_mem_start;
43#define PCIBIOS_MIN_IO 0x1000
44#define PCIBIOS_MIN_MEM (pci_mem_start)
45
46#define PCIBIOS_MIN_CARDBUS_IO 0x4000
47
48void pcibios_config_init(void);
49struct pci_bus * pcibios_scan_root(int bus);
50extern int (*pci_config_read)(int seg, int bus, int dev, int fn, int reg, int len, u32 *value);
51extern int (*pci_config_write)(int seg, int bus, int dev, int fn, int reg, int len, u32 value);
52
53void pcibios_set_master(struct pci_dev *dev);
54void pcibios_penalize_isa_irq(int irq, int active);
55struct irq_routing_table *pcibios_get_irq_routing_table(void);
56int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
57
58#include <linux/types.h>
59#include <linux/slab.h>
60#include <asm/scatterlist.h>
61#include <linux/string.h>
62#include <asm/page.h>
63
64extern void pci_iommu_alloc(void);
65extern int iommu_setup(char *opt);
66
67/* The PCI address space does equal the physical memory
68 * address space. The networking and block device layers use
69 * this boolean for bounce buffer decisions
70 *
71 * On AMD64 it mostly equals, but we set it to zero if a hardware
72 * IOMMU (gart) of sotware IOMMU (swiotlb) is available.
73 */
74#define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys)
75
76#if defined(CONFIG_IOMMU) || defined(CONFIG_CALGARY_IOMMU)
77
78#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \
79 dma_addr_t ADDR_NAME;
80#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \
81 __u32 LEN_NAME;
82#define pci_unmap_addr(PTR, ADDR_NAME) \
83 ((PTR)->ADDR_NAME)
84#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
85 (((PTR)->ADDR_NAME) = (VAL))
86#define pci_unmap_len(PTR, LEN_NAME) \
87 ((PTR)->LEN_NAME)
88#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
89 (((PTR)->LEN_NAME) = (VAL))
90
91#else
92/* No IOMMU */
93
94#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
95#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
96#define pci_unmap_addr(PTR, ADDR_NAME) (0)
97#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
98#define pci_unmap_len(PTR, LEN_NAME) (0)
99#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
100
101#endif
102
103#include <asm-generic/pci-dma-compat.h>
104
105#ifdef CONFIG_PCI
106static inline void pci_dma_burst_advice(struct pci_dev *pdev,
107 enum pci_dma_burst_strategy *strat,
108 unsigned long *strategy_parameter)
109{
110 *strat = PCI_DMA_BURST_INFINITY;
111 *strategy_parameter = ~0UL;
112}
113#endif
114
115#define HAVE_PCI_MMAP
116extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
117 enum pci_mmap_state mmap_state, int write_combine);
118
119#endif /* __KERNEL__ */
120
121/* generic pci stuff */
122#ifdef CONFIG_PCI
123#include <asm-generic/pci.h>
124#endif
125
126#endif /* __x8664_PCI_H */