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1da177e4 LT |
1 | #ifdef __KERNEL__ |
2 | #ifndef _PPC_MACHDEP_H | |
3 | #define _PPC_MACHDEP_H | |
4 | ||
1da177e4 | 5 | #include <linux/init.h> |
70765aa4 | 6 | #include <linux/kexec.h> |
1da177e4 LT |
7 | |
8 | #include <asm/setup.h> | |
9 | #include <asm/page.h> | |
10 | ||
1da177e4 LT |
11 | struct pt_regs; |
12 | struct pci_bus; | |
13 | struct pci_dev; | |
14 | struct seq_file; | |
15 | struct file; | |
16 | ||
e8222502 BH |
17 | /* |
18 | * This is for compatibility with ARCH=powerpc. | |
19 | */ | |
20 | #define machine_is(x) __MACHINE_IS_##x | |
21 | #define __MACHINE_IS_powermac 0 | |
22 | #define __MACHINE_IS_chrp 0 | |
23 | #ifdef CONFIG_PPC_PREP | |
24 | #define __MACHINE_IS_prep 1 | |
25 | #else | |
26 | #define __MACHINE_IS_prep 0 | |
27 | #endif | |
28 | ||
1da177e4 LT |
29 | /* We export this macro for external modules like Alsa to know if |
30 | * ppc_md.feature_call is implemented or not | |
31 | */ | |
32 | #define CONFIG_PPC_HAS_FEATURE_CALLS | |
33 | ||
34 | struct machdep_calls { | |
35 | void (*setup_arch)(void); | |
36 | /* Optional, may be NULL. */ | |
37 | int (*show_cpuinfo)(struct seq_file *m); | |
38 | int (*show_percpuinfo)(struct seq_file *m, int i); | |
39 | /* Optional, may be NULL. */ | |
40 | unsigned int (*irq_canonicalize)(unsigned int irq); | |
41 | void (*init_IRQ)(void); | |
35a84c2f | 42 | int (*get_irq)(void); |
1da177e4 LT |
43 | |
44 | /* A general init function, called by ppc_init in init/main.c. | |
51d3082f | 45 | May be NULL. DEPRECATED ! */ |
1da177e4 | 46 | void (*init)(void); |
51d3082f BH |
47 | /* For compatibility with merged platforms */ |
48 | void (*init_early)(void); | |
1da177e4 LT |
49 | |
50 | void (*restart)(char *cmd); | |
51 | void (*power_off)(void); | |
52 | void (*halt)(void); | |
53 | ||
a0652fc9 | 54 | void (*idle_loop)(void); |
1da177e4 LT |
55 | void (*power_save)(void); |
56 | ||
57 | long (*time_init)(void); /* Optional, may be NULL */ | |
58 | int (*set_rtc_time)(unsigned long nowtime); | |
59 | unsigned long (*get_rtc_time)(void); | |
60 | unsigned char (*rtc_read_val)(int addr); | |
61 | void (*rtc_write_val)(int addr, unsigned char val); | |
62 | void (*calibrate_decr)(void); | |
63 | ||
64 | void (*heartbeat)(void); | |
65 | unsigned long heartbeat_reset; | |
66 | unsigned long heartbeat_count; | |
67 | ||
68 | unsigned long (*find_end_of_memory)(void); | |
69 | void (*setup_io_mappings)(void); | |
70 | ||
71 | void (*early_serial_map)(void); | |
72 | void (*progress)(char *, unsigned short); | |
73 | void (*kgdb_map_scc)(void); | |
74 | ||
75 | unsigned char (*nvram_read_val)(int addr); | |
76 | void (*nvram_write_val)(int addr, unsigned char val); | |
77 | void (*nvram_sync)(void); | |
78 | ||
79 | /* | |
80 | * optional PCI "hooks" | |
81 | */ | |
82 | ||
83 | /* Called after scanning the bus, before allocating resources */ | |
84 | void (*pcibios_fixup)(void); | |
85 | ||
86 | /* Called after PPC generic resource fixup to perform | |
87 | machine specific fixups */ | |
88 | void (*pcibios_fixup_resources)(struct pci_dev *); | |
89 | ||
90 | /* Called for each PCI bus in the system when it's probed */ | |
91 | void (*pcibios_fixup_bus)(struct pci_bus *); | |
92 | ||
93 | /* Called when pci_enable_device() is called (initial=0) or | |
94 | * when a device with no assigned resource is found (initial=1). | |
95 | * Returns 0 to allow assignment/enabling of the device. */ | |
96 | int (*pcibios_enable_device_hook)(struct pci_dev *, int initial); | |
97 | ||
98 | /* For interrupt routing */ | |
99 | unsigned char (*pci_swizzle)(struct pci_dev *, unsigned char *); | |
100 | int (*pci_map_irq)(struct pci_dev *, unsigned char, unsigned char); | |
101 | ||
102 | /* Called in indirect_* to avoid touching devices */ | |
103 | int (*pci_exclude_device)(unsigned char, unsigned char); | |
104 | ||
105 | /* Called at then very end of pcibios_init() */ | |
106 | void (*pcibios_after_init)(void); | |
107 | ||
108 | /* Get access protection for /dev/mem */ | |
109 | pgprot_t (*phys_mem_access_prot)(struct file *file, | |
8b150478 | 110 | unsigned long pfn, |
1da177e4 LT |
111 | unsigned long size, |
112 | pgprot_t vma_prot); | |
113 | ||
1da177e4 LT |
114 | /* Motherboard/chipset features. This is a kind of general purpose |
115 | * hook used to control some machine specific features (like reset | |
116 | * lines, chip power control, etc...). | |
117 | */ | |
118 | long (*feature_call)(unsigned int feature, ...); | |
119 | ||
120 | #ifdef CONFIG_SMP | |
121 | /* functions for dealing with other cpus */ | |
122 | struct smp_ops_t *smp_ops; | |
123 | #endif /* CONFIG_SMP */ | |
70765aa4 EB |
124 | |
125 | #ifdef CONFIG_KEXEC | |
126 | /* Called to shutdown machine specific hardware not already controlled | |
127 | * by other drivers. | |
128 | * XXX Should we move this one out of kexec scope? | |
129 | */ | |
130 | void (*machine_shutdown)(void); | |
131 | ||
132 | /* Called to do the minimal shutdown needed to run a kexec'd kernel | |
133 | * to run successfully. | |
134 | * XXX Should we move this one out of kexec scope? | |
135 | */ | |
136 | void (*machine_crash_shutdown)(void); | |
137 | ||
138 | /* Called to do what every setup is needed on image and the | |
139 | * reboot code buffer. Returns 0 on success. | |
140 | * Provide your own (maybe dummy) implementation if your platform | |
141 | * claims to support kexec. | |
142 | */ | |
143 | int (*machine_kexec_prepare)(struct kimage *image); | |
144 | ||
145 | /* Called to handle any machine specific cleanup on image */ | |
146 | void (*machine_kexec_cleanup)(struct kimage *image); | |
147 | ||
148 | /* Called to perform the _real_ kexec. | |
149 | * Do NOT allocate memory or fail here. We are past the point of | |
150 | * no return. | |
151 | */ | |
152 | void (*machine_kexec)(struct kimage *image); | |
153 | #endif /* CONFIG_KEXEC */ | |
1da177e4 LT |
154 | }; |
155 | ||
156 | extern struct machdep_calls ppc_md; | |
157 | extern char cmd_line[COMMAND_LINE_SIZE]; | |
158 | ||
159 | extern void setup_pci_ptrs(void); | |
160 | ||
1da177e4 LT |
161 | #ifdef CONFIG_SMP |
162 | struct smp_ops_t { | |
17a6392d | 163 | void (*message_pass)(int target, int msg); |
1da177e4 LT |
164 | int (*probe)(void); |
165 | void (*kick_cpu)(int nr); | |
166 | void (*setup_cpu)(int nr); | |
167 | void (*space_timers)(int nr); | |
168 | void (*take_timebase)(void); | |
169 | void (*give_timebase)(void); | |
170 | }; | |
171 | ||
172 | /* Poor default implementations */ | |
173 | extern void __devinit smp_generic_give_timebase(void); | |
174 | extern void __devinit smp_generic_take_timebase(void); | |
175 | #endif /* CONFIG_SMP */ | |
176 | ||
177 | #endif /* _PPC_MACHDEP_H */ | |
178 | #endif /* __KERNEL__ */ |