1#ifndef __ALPHA_MACHVEC_H
2#define __ALPHA_MACHVEC_H 1
3
4#include <linux/config.h>
5#include <linux/types.h>
6
7/*
8 *	This file gets pulled in by asm/io.h from user space. We don't
9 *	want most of this escaping.
10 */
11
12#ifdef __KERNEL__
13
14/* The following structure vectors all of the I/O and IRQ manipulation
15   from the generic kernel to the hardware specific backend.  */
16
17struct task_struct;
18struct mm_struct;
19struct pt_regs;
20struct vm_area_struct;
21struct linux_hose_info;
22struct pci_dev;
23struct pci_ops;
24struct pci_controller;
25
26struct 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	int max_asn;
37	unsigned long max_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	u8 (*mv_inb)(unsigned long);
48	u16 (*mv_inw)(unsigned long);
49	u32 (*mv_inl)(unsigned long);
50
51	void (*mv_outb)(u8, unsigned long);
52	void (*mv_outw)(u16, unsigned long);
53	void (*mv_outl)(u32, unsigned long);
54
55	u8 (*mv_readb)(unsigned long);
56	u16 (*mv_readw)(unsigned long);
57	u32 (*mv_readl)(unsigned long);
58	u64 (*mv_readq)(unsigned long);
59
60	void (*mv_writeb)(u8, unsigned long);
61	void (*mv_writew)(u16, unsigned long);
62	void (*mv_writel)(u32, unsigned long);
63	void (*mv_writeq)(u64, unsigned long);
64
65	unsigned long (*mv_ioremap)(unsigned long, unsigned long);
66	void (*mv_iounmap)(unsigned long);
67	int (*mv_is_ioaddr)(unsigned long);
68
69	void (*mv_switch_mm)(struct mm_struct *, struct mm_struct *,
70			     struct task_struct *, long);
71	void (*mv_activate_mm)(struct mm_struct *, struct mm_struct *);
72
73	void (*mv_flush_tlb_current)(struct mm_struct *);
74	void (*mv_flush_tlb_current_page)(struct mm_struct * mm,
75					  struct vm_area_struct *vma,
76					  unsigned long addr);
77
78	void (*update_irq_hw)(unsigned long, unsigned long, int);
79	void (*ack_irq)(unsigned long);
80	void (*device_interrupt)(unsigned long vector, struct pt_regs *regs);
81	void (*machine_check)(u64 vector, u64 la, struct pt_regs *regs);
82
83	void (*init_arch)(void);
84	void (*init_irq)(void);
85	void (*init_rtc)(void);
86	void (*init_pci)(void);
87	void (*kill_arch)(int);
88
89	u8 (*pci_swizzle)(struct pci_dev *, u8 *);
90	int (*pci_map_irq)(struct pci_dev *, u8, u8);
91	struct pci_ops *pci_ops;
92
93	const char *vector_name;
94
95	/* System specific parameters.  */
96	union {
97	    struct {
98		unsigned long gru_int_req_bits;
99	    } cia;
100
101	    struct {
102		unsigned long gamma_bias;
103	    } t2;
104
105	    struct {
106		unsigned int route_tab;
107	    } sio;
108	} sys;
109};
110
111extern struct alpha_machine_vector alpha_mv;
112
113#ifdef CONFIG_ALPHA_GENERIC
114extern int alpha_using_srm;
115#else
116#ifdef CONFIG_ALPHA_SRM
117#define alpha_using_srm 1
118#else
119#define alpha_using_srm 0
120#endif
121#endif /* GENERIC */
122
123#endif
124#endif /* __ALPHA_MACHVEC_H */
125