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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __ALPHA_MACHVEC_H
3#define __ALPHA_MACHVEC_H 1
4
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 vm_area_struct;
20struct linux_hose_info;
21struct pci_dev;
22struct pci_ops;
23struct pci_controller;
24struct _alpha_agp_info;
25struct rtc_time;
26
27struct alpha_machine_vector
28{
29 /* This "belongs" down below with the rest of the runtime
30 variables, but it is convenient for entry.S if these
31 two slots are at the beginning of the struct. */
32 unsigned long hae_cache;
33 unsigned long *hae_register;
34
35 int nr_irqs;
36 int rtc_port;
37 int rtc_boot_cpu_only;
38 unsigned int max_asn;
39 unsigned long max_isa_dma_address;
40 unsigned long irq_probe_mask;
41 unsigned long iack_sc;
42 unsigned long min_io_address;
43 unsigned long min_mem_address;
44 unsigned long pci_dac_offset;
45
46 void (*mv_pci_tbi)(struct pci_controller *hose,
47 dma_addr_t start, dma_addr_t end);
48
49 u8 (*mv_ioread8)(const void __iomem *);
50 u16 (*mv_ioread16)(const void __iomem *);
51 u32 (*mv_ioread32)(const void __iomem *);
52 u64 (*mv_ioread64)(const void __iomem *);
53
54 void (*mv_iowrite8)(u8, void __iomem *);
55 void (*mv_iowrite16)(u16, void __iomem *);
56 void (*mv_iowrite32)(u32, void __iomem *);
57 void (*mv_iowrite64)(u64, void __iomem *);
58
59 u8 (*mv_readb)(const volatile void __iomem *);
60 u16 (*mv_readw)(const volatile void __iomem *);
61 u32 (*mv_readl)(const volatile void __iomem *);
62 u64 (*mv_readq)(const volatile void __iomem *);
63
64 void (*mv_writeb)(u8, volatile void __iomem *);
65 void (*mv_writew)(u16, volatile void __iomem *);
66 void (*mv_writel)(u32, volatile void __iomem *);
67 void (*mv_writeq)(u64, volatile void __iomem *);
68
69 void __iomem *(*mv_ioportmap)(unsigned long);
70 void __iomem *(*mv_ioremap)(unsigned long, unsigned long);
71 void (*mv_iounmap)(volatile void __iomem *);
72 int (*mv_is_ioaddr)(unsigned long);
73 int (*mv_is_mmio)(const volatile void __iomem *);
74
75 void (*update_irq_hw)(unsigned long, unsigned long, int);
76 void (*ack_irq)(unsigned long);
77 void (*device_interrupt)(unsigned long vector);
78 void (*machine_check)(unsigned long vector, unsigned long la);
79
80 void (*smp_callin)(void);
81 void (*init_arch)(void);
82 void (*init_irq)(void);
83 void (*init_rtc)(void);
84 void (*init_pci)(void);
85 void (*kill_arch)(int);
86
87 u8 (*pci_swizzle)(struct pci_dev *, u8 *);
88 int (*pci_map_irq)(const struct pci_dev *, u8, u8);
89 struct pci_ops *pci_ops;
90
91 struct _alpha_agp_info *(*agp_info)(void);
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;
115extern int alpha_using_qemu;
116#else
117# ifdef CONFIG_ALPHA_SRM
118# define alpha_using_srm 1
119# else
120# define alpha_using_srm 0
121# endif
122# ifdef CONFIG_ALPHA_QEMU
123# define alpha_using_qemu 1
124# else
125# define alpha_using_qemu 0
126# endif
127#endif /* GENERIC */
128
129#endif /* __KERNEL__ */
130#endif /* __ALPHA_MACHVEC_H */