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 
17 struct task_struct;
18 struct mm_struct;
19 struct vm_area_struct;
20 struct linux_hose_info;
21 struct pci_dev;
22 struct pci_ops;
23 struct pci_controller;
24 struct _alpha_agp_info;
25 struct rtc_time;
26 
27 struct 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 (*mv_switch_mm)(struct mm_struct *, struct mm_struct *,
76 			     struct task_struct *);
77 	void (*mv_activate_mm)(struct mm_struct *, struct mm_struct *);
78 
79 	void (*mv_flush_tlb_current)(struct mm_struct *);
80 	void (*mv_flush_tlb_current_page)(struct mm_struct * mm,
81 					  struct vm_area_struct *vma,
82 					  unsigned long addr);
83 
84 	void (*update_irq_hw)(unsigned long, unsigned long, int);
85 	void (*ack_irq)(unsigned long);
86 	void (*device_interrupt)(unsigned long vector);
87 	void (*machine_check)(unsigned long vector, unsigned long la);
88 
89 	void (*smp_callin)(void);
90 	void (*init_arch)(void);
91 	void (*init_irq)(void);
92 	void (*init_rtc)(void);
93 	void (*init_pci)(void);
94 	void (*kill_arch)(int);
95 
96 	u8 (*pci_swizzle)(struct pci_dev *, u8 *);
97 	int (*pci_map_irq)(const struct pci_dev *, u8, u8);
98 	struct pci_ops *pci_ops;
99 
100 	struct _alpha_agp_info *(*agp_info)(void);
101 
102 	const char *vector_name;
103 
104 	/* System specific parameters.  */
105 	union {
106 	    struct {
107 		unsigned long gru_int_req_bits;
108 	    } cia;
109 
110 	    struct {
111 		unsigned long gamma_bias;
112 	    } t2;
113 
114 	    struct {
115 		unsigned int route_tab;
116 	    } sio;
117 	} sys;
118 };
119 
120 extern struct alpha_machine_vector alpha_mv;
121 
122 #ifdef CONFIG_ALPHA_GENERIC
123 extern int alpha_using_srm;
124 extern int alpha_using_qemu;
125 #else
126 # ifdef CONFIG_ALPHA_SRM
127 #  define alpha_using_srm 1
128 # else
129 #  define alpha_using_srm 0
130 # endif
131 # ifdef CONFIG_ALPHA_QEMU
132 #  define alpha_using_qemu 1
133 # else
134 #  define alpha_using_qemu 0
135 # endif
136 #endif /* GENERIC */
137 
138 #endif /* __KERNEL__ */
139 #endif /* __ALPHA_MACHVEC_H */
140