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machvec.h
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1 #ifndef __ALPHA_MACHVEC_H
2 #define __ALPHA_MACHVEC_H 1
3 
4 #include <linux/types.h>
5 
6 /*
7  * This file gets pulled in by asm/io.h from user space. We don't
8  * want most of this escaping.
9  */
10 
11 #ifdef __KERNEL__
12 
13 /* The following structure vectors all of the I/O and IRQ manipulation
14  from the generic kernel to the hardware specific backend. */
15 
16 struct task_struct;
17 struct mm_struct;
18 struct vm_area_struct;
19 struct linux_hose_info;
20 struct pci_dev;
21 struct pci_ops;
22 struct pci_controller;
23 struct _alpha_agp_info;
24 struct rtc_time;
25 
26 struct alpha_machine_vector
27 {
28  /* This "belongs" down below with the rest of the runtime
29  variables, but it is convenient for entry.S if these
30  two slots are at the beginning of the struct. */
31  unsigned long hae_cache;
32  unsigned long *hae_register;
33 
34  int nr_irqs;
35  int rtc_port;
36  unsigned int max_asn;
37  unsigned long max_isa_dma_address;
38  unsigned long irq_probe_mask;
39  unsigned long iack_sc;
40  unsigned long min_io_address;
41  unsigned long min_mem_address;
42  unsigned long pci_dac_offset;
43 
44  void (*mv_pci_tbi)(struct pci_controller *hose,
45  dma_addr_t start, dma_addr_t end);
46 
47  unsigned int (*mv_ioread8)(void __iomem *);
48  unsigned int (*mv_ioread16)(void __iomem *);
49  unsigned int (*mv_ioread32)(void __iomem *);
50 
51  void (*mv_iowrite8)(u8, void __iomem *);
52  void (*mv_iowrite16)(u16, void __iomem *);
53  void (*mv_iowrite32)(u32, void __iomem *);
54 
55  u8 (*mv_readb)(const volatile void __iomem *);
56  u16 (*mv_readw)(const volatile void __iomem *);
57  u32 (*mv_readl)(const volatile void __iomem *);
58  u64 (*mv_readq)(const volatile void __iomem *);
59 
60  void (*mv_writeb)(u8, volatile void __iomem *);
61  void (*mv_writew)(u16, volatile void __iomem *);
62  void (*mv_writel)(u32, volatile void __iomem *);
63  void (*mv_writeq)(u64, volatile void __iomem *);
64 
65  void __iomem *(*mv_ioportmap)(unsigned long);
66  void __iomem *(*mv_ioremap)(unsigned long, unsigned long);
67  void (*mv_iounmap)(volatile void __iomem *);
68  int (*mv_is_ioaddr)(unsigned long);
69  int (*mv_is_mmio)(const volatile void __iomem *);
70 
71  void (*mv_switch_mm)(struct mm_struct *, struct mm_struct *,
72  struct task_struct *);
73  void (*mv_activate_mm)(struct mm_struct *, struct mm_struct *);
74 
75  void (*mv_flush_tlb_current)(struct mm_struct *);
76  void (*mv_flush_tlb_current_page)(struct mm_struct * mm,
77  struct vm_area_struct *vma,
78  unsigned long addr);
79 
80  void (*update_irq_hw)(unsigned long, unsigned long, int);
81  void (*ack_irq)(unsigned long);
82  void (*device_interrupt)(unsigned long vector);
83  void (*machine_check)(unsigned long vector, unsigned long la);
84 
85  void (*smp_callin)(void);
86  void (*init_arch)(void);
87  void (*init_irq)(void);
88  void (*init_rtc)(void);
89  void (*init_pci)(void);
90  void (*kill_arch)(int);
91 
92  u8 (*pci_swizzle)(struct pci_dev *, u8 *);
93  int (*pci_map_irq)(const struct pci_dev *, u8, u8);
94  struct pci_ops *pci_ops;
95 
96  struct _alpha_agp_info *(*agp_info)(void);
97 
98  unsigned int (*rtc_get_time)(struct rtc_time *);
99  int (*rtc_set_time)(struct rtc_time *);
100 
101  const char *vector_name;
102 
103  /* NUMA information */
104  int (*pa_to_nid)(unsigned long);
105  int (*cpuid_to_nid)(int);
106  unsigned long (*node_mem_start)(int);
107  unsigned long (*node_mem_size)(int);
108 
109  /* System specific parameters. */
110  union {
111  struct {
112  unsigned long gru_int_req_bits;
113  } cia;
114 
115  struct {
116  unsigned long gamma_bias;
117  } t2;
118 
119  struct {
120  unsigned int route_tab;
121  } sio;
122  } sys;
123 };
124 
125 extern struct alpha_machine_vector alpha_mv;
126 
127 #ifdef CONFIG_ALPHA_GENERIC
128 extern int alpha_using_srm;
129 #else
130 #ifdef CONFIG_ALPHA_SRM
131 #define alpha_using_srm 1
132 #else
133 #define alpha_using_srm 0
134 #endif
135 #endif /* GENERIC */
136 
137 #endif
138 #endif /* __ALPHA_MACHVEC_H */
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