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review.shift-gmbh.com / SHIFTPHONES / mainline / linux / cc63b1e12b378c44e074571d5688c23be823b04c / . / include / asm-ppc / machdep.h
blob: b78d40870c951ac1a41c7133ac3edcc0acad1532 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1#ifdef __KERNEL__
2#ifndef _PPC_MACHDEP_H
3#define _PPC_MACHDEP_H
4
5#include <linux/config.h>
6#include <linux/init.h>
7
8#include <asm/setup.h>
9#include <asm/page.h>
10
11#ifdef CONFIG_APUS
12#include <asm-m68k/machdep.h>
13#endif
14
15struct pt_regs;
16struct pci_bus;
17struct pci_dev;
18struct seq_file;
19struct file;
20
21/* We export this macro for external modules like Alsa to know if
22 * ppc_md.feature_call is implemented or not
23 */
24#define CONFIG_PPC_HAS_FEATURE_CALLS
25
26struct machdep_calls {
27 void (*setup_arch)(void);
28 /* Optional, may be NULL. */
29 int (*show_cpuinfo)(struct seq_file *m);
30 int (*show_percpuinfo)(struct seq_file *m, int i);
31 /* Optional, may be NULL. */
32 unsigned int (*irq_canonicalize)(unsigned int irq);
33 void (*init_IRQ)(void);
34 int (*get_irq)(struct pt_regs *);
35
36 /* A general init function, called by ppc_init in init/main.c.
37 May be NULL. */
38 void (*init)(void);
39
40 void (*restart)(char *cmd);
41 void (*power_off)(void);
42 void (*halt)(void);
43
44 void (*idle)(void);
45 void (*power_save)(void);
46
47 long (*time_init)(void); /* Optional, may be NULL */
48 int (*set_rtc_time)(unsigned long nowtime);
49 unsigned long (*get_rtc_time)(void);
50 unsigned char (*rtc_read_val)(int addr);
51 void (*rtc_write_val)(int addr, unsigned char val);
52 void (*calibrate_decr)(void);
53
54 void (*heartbeat)(void);
55 unsigned long heartbeat_reset;
56 unsigned long heartbeat_count;
57
58 unsigned long (*find_end_of_memory)(void);
59 void (*setup_io_mappings)(void);
60
61 void (*early_serial_map)(void);
62 void (*progress)(char *, unsigned short);
63 void (*kgdb_map_scc)(void);
64
65 unsigned char (*nvram_read_val)(int addr);
66 void (*nvram_write_val)(int addr, unsigned char val);
67 void (*nvram_sync)(void);
68
69 /*
70 * optional PCI "hooks"
71 */
72
73 /* Called after scanning the bus, before allocating resources */
74 void (*pcibios_fixup)(void);
75
76 /* Called after PPC generic resource fixup to perform
77 machine specific fixups */
78 void (*pcibios_fixup_resources)(struct pci_dev *);
79
80 /* Called for each PCI bus in the system when it's probed */
81 void (*pcibios_fixup_bus)(struct pci_bus *);
82
83 /* Called when pci_enable_device() is called (initial=0) or
84 * when a device with no assigned resource is found (initial=1).
85 * Returns 0 to allow assignment/enabling of the device. */
86 int (*pcibios_enable_device_hook)(struct pci_dev *, int initial);
87
88 /* For interrupt routing */
89 unsigned char (*pci_swizzle)(struct pci_dev *, unsigned char *);
90 int (*pci_map_irq)(struct pci_dev *, unsigned char, unsigned char);
91
92 /* Called in indirect_* to avoid touching devices */
93 int (*pci_exclude_device)(unsigned char, unsigned char);
94
95 /* Called at then very end of pcibios_init() */
96 void (*pcibios_after_init)(void);
97
98 /* Get access protection for /dev/mem */
99 pgprot_t (*phys_mem_access_prot)(struct file *file,
100 unsigned long offset,
101 unsigned long size,
102 pgprot_t vma_prot);
103
104 /* this is for modules, since _machine can be a define -- Cort */
105 int ppc_machine;
106
107 /* Motherboard/chipset features. This is a kind of general purpose
108 * hook used to control some machine specific features (like reset
109 * lines, chip power control, etc...).
110 */
111 long (*feature_call)(unsigned int feature, ...);
112
113#ifdef CONFIG_SMP
114 /* functions for dealing with other cpus */
115 struct smp_ops_t *smp_ops;
116#endif /* CONFIG_SMP */
117};
118
119extern struct machdep_calls ppc_md;
120extern char cmd_line[COMMAND_LINE_SIZE];
121
122extern void setup_pci_ptrs(void);
123
124/*
125 * Power macintoshes have either a CUDA or a PMU controlling
126 * system reset, power, NVRAM, RTC.
127 */
128typedef enum sys_ctrler_kind {
129 SYS_CTRLER_UNKNOWN = 0,
130 SYS_CTRLER_CUDA = 1,
131 SYS_CTRLER_PMU = 2,
132 SYS_CTRLER_SMU = 3,
133} sys_ctrler_t;
134
135extern sys_ctrler_t sys_ctrler;
136
137#ifdef CONFIG_SMP
138struct smp_ops_t {
139 void (*message_pass)(int target, int msg, unsigned long data, int wait);
140 int (*probe)(void);
141 void (*kick_cpu)(int nr);
142 void (*setup_cpu)(int nr);
143 void (*space_timers)(int nr);
144 void (*take_timebase)(void);
145 void (*give_timebase)(void);
146};
147
148/* Poor default implementations */
149extern void __devinit smp_generic_give_timebase(void);
150extern void __devinit smp_generic_take_timebase(void);
151#endif /* CONFIG_SMP */
152
153#endif /* _PPC_MACHDEP_H */
154#endif /* __KERNEL__ */