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b41fc4f8 PM |
1 | #ifndef _ASM_POWERPC_MACHDEP_H |
2 | #define _ASM_POWERPC_MACHDEP_H | |
143a1dec | 3 | #ifdef __KERNEL__ |
1da177e4 LT |
4 | |
5 | /* | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version | |
9 | * 2 of the License, or (at your option) any later version. | |
10 | */ | |
11 | ||
12 | #include <linux/config.h> | |
13 | #include <linux/seq_file.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/dma-mapping.h> | |
16 | ||
17 | #include <asm/setup.h> | |
18 | ||
143a1dec PM |
19 | /* We export this macro for external modules like Alsa to know if |
20 | * ppc_md.feature_call is implemented or not | |
21 | */ | |
22 | #define CONFIG_PPC_HAS_FEATURE_CALLS | |
23 | ||
1da177e4 LT |
24 | struct pt_regs; |
25 | struct pci_bus; | |
26 | struct device_node; | |
27 | struct iommu_table; | |
28 | struct rtc_time; | |
29 | struct file; | |
30 | ||
31 | #ifdef CONFIG_SMP | |
32 | struct smp_ops_t { | |
33 | void (*message_pass)(int target, int msg); | |
34 | int (*probe)(void); | |
35 | void (*kick_cpu)(int nr); | |
36 | void (*setup_cpu)(int nr); | |
37 | void (*take_timebase)(void); | |
38 | void (*give_timebase)(void); | |
39 | int (*cpu_enable)(unsigned int nr); | |
40 | int (*cpu_disable)(void); | |
41 | void (*cpu_die)(unsigned int nr); | |
42 | int (*cpu_bootable)(unsigned int nr); | |
43 | }; | |
44 | #endif | |
45 | ||
46 | struct machdep_calls { | |
143a1dec | 47 | #ifdef CONFIG_PPC64 |
1da177e4 LT |
48 | void (*hpte_invalidate)(unsigned long slot, |
49 | unsigned long va, | |
50 | int large, | |
51 | int local); | |
52 | long (*hpte_updatepp)(unsigned long slot, | |
53 | unsigned long newpp, | |
54 | unsigned long va, | |
55 | int large, | |
56 | int local); | |
57 | void (*hpte_updateboltedpp)(unsigned long newpp, | |
58 | unsigned long ea); | |
59 | long (*hpte_insert)(unsigned long hpte_group, | |
60 | unsigned long va, | |
61 | unsigned long prpn, | |
96e28449 DG |
62 | unsigned long vflags, |
63 | unsigned long rflags); | |
1da177e4 | 64 | long (*hpte_remove)(unsigned long hpte_group); |
61b1a942 BH |
65 | void (*flush_hash_range)(unsigned long number, int local); |
66 | ||
1da177e4 LT |
67 | /* special for kexec, to be called in real mode, linar mapping is |
68 | * destroyed as well */ | |
69 | void (*hpte_clear_all)(void); | |
70 | ||
71 | void (*tce_build)(struct iommu_table * tbl, | |
72 | long index, | |
73 | long npages, | |
74 | unsigned long uaddr, | |
75 | enum dma_data_direction direction); | |
76 | void (*tce_free)(struct iommu_table *tbl, | |
77 | long index, | |
78 | long npages); | |
79 | void (*tce_flush)(struct iommu_table *tbl); | |
80 | void (*iommu_dev_setup)(struct pci_dev *dev); | |
81 | void (*iommu_bus_setup)(struct pci_bus *bus); | |
dad32bbf | 82 | void (*irq_bus_setup)(struct pci_bus *bus); |
cab0af98 | 83 | int (*set_dabr)(unsigned long dabr); |
143a1dec | 84 | #endif |
1da177e4 LT |
85 | |
86 | int (*probe)(int platform); | |
87 | void (*setup_arch)(void); | |
88 | void (*init_early)(void); | |
89 | /* Optional, may be NULL. */ | |
d8699e65 PM |
90 | void (*show_cpuinfo)(struct seq_file *m); |
91 | void (*show_percpuinfo)(struct seq_file *m, int i); | |
1da177e4 LT |
92 | |
93 | void (*init_IRQ)(void); | |
94 | int (*get_irq)(struct pt_regs *); | |
6d22d85a | 95 | void (*cpu_irq_down)(int secondary); |
1da177e4 LT |
96 | |
97 | /* PCI stuff */ | |
143a1dec | 98 | /* Called after scanning the bus, before allocating resources */ |
1da177e4 | 99 | void (*pcibios_fixup)(void); |
4267292b | 100 | int (*pci_probe_mode)(struct pci_bus *); |
1da177e4 LT |
101 | |
102 | void (*restart)(char *cmd); | |
103 | void (*power_off)(void); | |
104 | void (*halt)(void); | |
105 | void (*panic)(char *str); | |
106 | void (*cpu_die)(void); | |
107 | ||
143a1dec PM |
108 | long (*time_init)(void); /* Optional, may be NULL */ |
109 | ||
1da177e4 LT |
110 | int (*set_rtc_time)(struct rtc_time *); |
111 | void (*get_rtc_time)(struct rtc_time *); | |
143a1dec PM |
112 | unsigned long (*get_boot_time)(void); |
113 | unsigned char (*rtc_read_val)(int addr); | |
114 | void (*rtc_write_val)(int addr, unsigned char val); | |
1da177e4 LT |
115 | |
116 | void (*calibrate_decr)(void); | |
117 | ||
118 | void (*progress)(char *, unsigned short); | |
119 | ||
1da177e4 LT |
120 | /* Interface for platform error logging */ |
121 | void (*log_error)(char *buf, unsigned int err_type, int fatal); | |
122 | ||
35499c01 PM |
123 | unsigned char (*nvram_read_val)(int addr); |
124 | void (*nvram_write_val)(int addr, unsigned char val); | |
1da177e4 LT |
125 | ssize_t (*nvram_write)(char *buf, size_t count, loff_t *index); |
126 | ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index); | |
127 | ssize_t (*nvram_size)(void); | |
143a1dec | 128 | void (*nvram_sync)(void); |
1da177e4 LT |
129 | |
130 | /* Exception handlers */ | |
131 | void (*system_reset_exception)(struct pt_regs *regs); | |
132 | int (*machine_check_exception)(struct pt_regs *regs); | |
133 | ||
134 | /* Motherboard/chipset features. This is a kind of general purpose | |
135 | * hook used to control some machine specific features (like reset | |
136 | * lines, chip power control, etc...). | |
137 | */ | |
138 | long (*feature_call)(unsigned int feature, ...); | |
139 | ||
140 | /* Check availability of legacy devices like i8042 */ | |
141 | int (*check_legacy_ioport)(unsigned int baseport); | |
142 | ||
143 | /* Get legacy PCI/IDE interrupt mapping */ | |
144 | int (*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel); | |
145 | ||
146 | /* Get access protection for /dev/mem */ | |
147 | pgprot_t (*phys_mem_access_prot)(struct file *file, | |
8b150478 | 148 | unsigned long pfn, |
1da177e4 LT |
149 | unsigned long size, |
150 | pgprot_t vma_prot); | |
151 | ||
fd899c0c | 152 | /* Idle loop for this platform, leave empty for default idle loop */ |
143a1dec | 153 | void (*idle_loop)(void); |
180a3362 | 154 | |
143a1dec PM |
155 | /* Function to enable performance monitor counters for this |
156 | platform, called once per cpu. */ | |
180a3362 | 157 | void (*enable_pmcs)(void); |
143a1dec PM |
158 | |
159 | #ifdef CONFIG_PPC32 /* XXX for now */ | |
143a1dec PM |
160 | /* A general init function, called by ppc_init in init/main.c. |
161 | May be NULL. */ | |
162 | void (*init)(void); | |
163 | ||
164 | void (*idle)(void); | |
165 | void (*power_save)(void); | |
166 | ||
167 | void (*heartbeat)(void); | |
168 | unsigned long heartbeat_reset; | |
169 | unsigned long heartbeat_count; | |
170 | ||
143a1dec PM |
171 | void (*setup_io_mappings)(void); |
172 | ||
173 | void (*early_serial_map)(void); | |
174 | void (*kgdb_map_scc)(void); | |
175 | ||
143a1dec PM |
176 | /* |
177 | * optional PCI "hooks" | |
178 | */ | |
179 | ||
180 | /* Called after PPC generic resource fixup to perform | |
181 | machine specific fixups */ | |
182 | void (*pcibios_fixup_resources)(struct pci_dev *); | |
183 | ||
184 | /* Called for each PCI bus in the system when it's probed */ | |
185 | void (*pcibios_fixup_bus)(struct pci_bus *); | |
186 | ||
187 | /* Called when pci_enable_device() is called (initial=0) or | |
188 | * when a device with no assigned resource is found (initial=1). | |
189 | * Returns 0 to allow assignment/enabling of the device. */ | |
190 | int (*pcibios_enable_device_hook)(struct pci_dev *, int initial); | |
191 | ||
192 | /* For interrupt routing */ | |
193 | unsigned char (*pci_swizzle)(struct pci_dev *, unsigned char *); | |
194 | int (*pci_map_irq)(struct pci_dev *, unsigned char, unsigned char); | |
195 | ||
196 | /* Called in indirect_* to avoid touching devices */ | |
197 | int (*pci_exclude_device)(unsigned char, unsigned char); | |
198 | ||
199 | /* Called at then very end of pcibios_init() */ | |
200 | void (*pcibios_after_init)(void); | |
201 | ||
202 | /* this is for modules, since _machine can be a define -- Cort */ | |
203 | int ppc_machine; | |
204 | ||
205 | #ifdef CONFIG_KEXEC | |
206 | /* Called to shutdown machine specific hardware not already controlled | |
207 | * by other drivers. | |
208 | * XXX Should we move this one out of kexec scope? | |
209 | */ | |
210 | void (*machine_shutdown)(void); | |
211 | ||
212 | /* Called to do the minimal shutdown needed to run a kexec'd kernel | |
213 | * to run successfully. | |
214 | * XXX Should we move this one out of kexec scope? | |
215 | */ | |
216 | void (*machine_crash_shutdown)(void); | |
217 | ||
218 | /* Called to do what every setup is needed on image and the | |
219 | * reboot code buffer. Returns 0 on success. | |
220 | * Provide your own (maybe dummy) implementation if your platform | |
221 | * claims to support kexec. | |
222 | */ | |
223 | int (*machine_kexec_prepare)(struct kimage *image); | |
224 | ||
225 | /* Called to handle any machine specific cleanup on image */ | |
226 | void (*machine_kexec_cleanup)(struct kimage *image); | |
227 | ||
228 | /* Called to perform the _real_ kexec. | |
229 | * Do NOT allocate memory or fail here. We are past the point of | |
230 | * no return. | |
231 | */ | |
232 | void (*machine_kexec)(struct kimage *image); | |
233 | #endif /* CONFIG_KEXEC */ | |
234 | #endif /* CONFIG_PPC32 */ | |
1da177e4 LT |
235 | }; |
236 | ||
143a1dec PM |
237 | extern void default_idle(void); |
238 | extern void native_idle(void); | |
fd899c0c | 239 | |
1da177e4 LT |
240 | extern struct machdep_calls ppc_md; |
241 | extern char cmd_line[COMMAND_LINE_SIZE]; | |
242 | ||
243 | #ifdef CONFIG_PPC_PMAC | |
244 | /* | |
245 | * Power macintoshes have either a CUDA, PMU or SMU controlling | |
246 | * system reset, power, NVRAM, RTC. | |
247 | */ | |
248 | typedef enum sys_ctrler_kind { | |
249 | SYS_CTRLER_UNKNOWN = 0, | |
250 | SYS_CTRLER_CUDA = 1, | |
251 | SYS_CTRLER_PMU = 2, | |
252 | SYS_CTRLER_SMU = 3, | |
253 | } sys_ctrler_t; | |
254 | extern sys_ctrler_t sys_ctrler; | |
255 | ||
256 | #endif /* CONFIG_PPC_PMAC */ | |
257 | ||
143a1dec PM |
258 | extern void setup_pci_ptrs(void); |
259 | ||
260 | #ifdef CONFIG_SMP | |
261 | /* Poor default implementations */ | |
262 | extern void __devinit smp_generic_give_timebase(void); | |
263 | extern void __devinit smp_generic_take_timebase(void); | |
264 | #endif /* CONFIG_SMP */ | |
1da177e4 LT |
265 | |
266 | ||
267 | /* Functions to produce codes on the leds. | |
268 | * The SRC code should be unique for the message category and should | |
269 | * be limited to the lower 24 bits (the upper 8 are set by these funcs), | |
270 | * and (for boot & dump) should be sorted numerically in the order | |
271 | * the events occur. | |
272 | */ | |
273 | /* Print a boot progress message. */ | |
274 | void ppc64_boot_msg(unsigned int src, const char *msg); | |
275 | /* Print a termination message (print only -- does not stop the kernel) */ | |
276 | void ppc64_terminate_msg(unsigned int src, const char *msg); | |
1da177e4 LT |
277 | |
278 | static inline void log_error(char *buf, unsigned int err_type, int fatal) | |
279 | { | |
280 | if (ppc_md.log_error) | |
281 | ppc_md.log_error(buf, err_type, fatal); | |
282 | } | |
283 | ||
1da177e4 | 284 | #endif /* __KERNEL__ */ |
b41fc4f8 | 285 | #endif /* _ASM_POWERPC_MACHDEP_H */ |