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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 | ||
1da177e4 LT |
12 | #include <linux/seq_file.h> |
13 | #include <linux/init.h> | |
14 | #include <linux/dma-mapping.h> | |
15 | ||
16 | #include <asm/setup.h> | |
17 | ||
143a1dec PM |
18 | /* We export this macro for external modules like Alsa to know if |
19 | * ppc_md.feature_call is implemented or not | |
20 | */ | |
21 | #define CONFIG_PPC_HAS_FEATURE_CALLS | |
22 | ||
1da177e4 LT |
23 | struct pt_regs; |
24 | struct pci_bus; | |
25 | struct device_node; | |
26 | struct iommu_table; | |
27 | struct rtc_time; | |
28 | struct file; | |
4c9d2800 | 29 | struct pci_controller; |
3d1229d6 | 30 | struct kimage; |
1da177e4 LT |
31 | |
32 | #ifdef CONFIG_SMP | |
33 | struct smp_ops_t { | |
34 | void (*message_pass)(int target, int msg); | |
35 | int (*probe)(void); | |
36 | void (*kick_cpu)(int nr); | |
37 | void (*setup_cpu)(int nr); | |
d7294445 | 38 | void (*bringup_done)(void); |
1da177e4 LT |
39 | void (*take_timebase)(void); |
40 | void (*give_timebase)(void); | |
1da177e4 LT |
41 | int (*cpu_disable)(void); |
42 | void (*cpu_die)(unsigned int nr); | |
43 | int (*cpu_bootable)(unsigned int nr); | |
44 | }; | |
45 | #endif | |
46 | ||
47 | struct machdep_calls { | |
e8222502 | 48 | char *name; |
143a1dec | 49 | #ifdef CONFIG_PPC64 |
1da177e4 LT |
50 | void (*hpte_invalidate)(unsigned long slot, |
51 | unsigned long va, | |
1189be65 | 52 | int psize, int ssize, |
1da177e4 LT |
53 | int local); |
54 | long (*hpte_updatepp)(unsigned long slot, | |
55 | unsigned long newpp, | |
56 | unsigned long va, | |
1189be65 | 57 | int psize, int ssize, |
1da177e4 LT |
58 | int local); |
59 | void (*hpte_updateboltedpp)(unsigned long newpp, | |
3c726f8d | 60 | unsigned long ea, |
1189be65 | 61 | int psize, int ssize); |
1da177e4 LT |
62 | long (*hpte_insert)(unsigned long hpte_group, |
63 | unsigned long va, | |
64 | unsigned long prpn, | |
3c726f8d | 65 | unsigned long rflags, |
96e28449 | 66 | unsigned long vflags, |
1189be65 | 67 | int psize, int ssize); |
1da177e4 | 68 | long (*hpte_remove)(unsigned long hpte_group); |
f8c8803b BP |
69 | void (*hpte_removebolted)(unsigned long ea, |
70 | int psize, int ssize); | |
61b1a942 BH |
71 | void (*flush_hash_range)(unsigned long number, int local); |
72 | ||
bee376ff | 73 | /* special for kexec, to be called in real mode, linear mapping is |
1da177e4 LT |
74 | * destroyed as well */ |
75 | void (*hpte_clear_all)(void); | |
76 | ||
6490c490 | 77 | int (*tce_build)(struct iommu_table *tbl, |
1da177e4 LT |
78 | long index, |
79 | long npages, | |
80 | unsigned long uaddr, | |
4f3dd8a0 MN |
81 | enum dma_data_direction direction, |
82 | struct dma_attrs *attrs); | |
1da177e4 LT |
83 | void (*tce_free)(struct iommu_table *tbl, |
84 | long index, | |
85 | long npages); | |
5f50867b HM |
86 | unsigned long (*tce_get)(struct iommu_table *tbl, |
87 | long index); | |
1da177e4 | 88 | void (*tce_flush)(struct iommu_table *tbl); |
4cb3cee0 | 89 | |
68a64357 | 90 | void __iomem * (*ioremap)(phys_addr_t addr, unsigned long size, |
1cdab55d | 91 | unsigned long flags, void *caller); |
68a64357 | 92 | void (*iounmap)(volatile void __iomem *token); |
7e11580b JB |
93 | |
94 | #ifdef CONFIG_PM | |
95 | void (*iommu_save)(void); | |
96 | void (*iommu_restore)(void); | |
97 | #endif | |
e8222502 | 98 | #endif /* CONFIG_PPC64 */ |
1da177e4 | 99 | |
4fc665b8 BB |
100 | void (*pci_dma_dev_setup)(struct pci_dev *dev); |
101 | void (*pci_dma_bus_setup)(struct pci_bus *bus); | |
102 | ||
5b6e9ff6 BH |
103 | /* Platform set_dma_mask override */ |
104 | int (*dma_set_mask)(struct device *dev, u64 dma_mask); | |
105 | ||
e8222502 | 106 | int (*probe)(void); |
38db7e74 | 107 | void (*setup_arch)(void); /* Optional, may be NULL */ |
1da177e4 LT |
108 | void (*init_early)(void); |
109 | /* Optional, may be NULL. */ | |
d8699e65 PM |
110 | void (*show_cpuinfo)(struct seq_file *m); |
111 | void (*show_percpuinfo)(struct seq_file *m, int i); | |
1da177e4 LT |
112 | |
113 | void (*init_IRQ)(void); | |
9b647a30 ME |
114 | |
115 | /* Return an irq, or NO_IRQ to indicate there are none pending. | |
116 | * If for some reason there is no irq, but the interrupt | |
117 | * shouldn't be counted as spurious, return NO_IRQ_IGNORE. */ | |
35a84c2f | 118 | unsigned int (*get_irq)(void); |
1da177e4 LT |
119 | |
120 | /* PCI stuff */ | |
143a1dec | 121 | /* Called after scanning the bus, before allocating resources */ |
1da177e4 | 122 | void (*pcibios_fixup)(void); |
4267292b | 123 | int (*pci_probe_mode)(struct pci_bus *); |
f90bb153 | 124 | void (*pci_irq_fixup)(struct pci_dev *dev); |
1da177e4 | 125 | |
4c9d2800 BH |
126 | /* To setup PHBs when using automatic OF platform driver for PCI */ |
127 | int (*pci_setup_phb)(struct pci_controller *host); | |
128 | ||
df87ef55 ME |
129 | #ifdef CONFIG_PCI_MSI |
130 | int (*msi_check_device)(struct pci_dev* dev, | |
131 | int nvec, int type); | |
132 | int (*setup_msi_irqs)(struct pci_dev *dev, | |
133 | int nvec, int type); | |
134 | void (*teardown_msi_irqs)(struct pci_dev *dev); | |
135 | #endif | |
136 | ||
1da177e4 LT |
137 | void (*restart)(char *cmd); |
138 | void (*power_off)(void); | |
139 | void (*halt)(void); | |
140 | void (*panic)(char *str); | |
141 | void (*cpu_die)(void); | |
142 | ||
143a1dec PM |
143 | long (*time_init)(void); /* Optional, may be NULL */ |
144 | ||
1da177e4 LT |
145 | int (*set_rtc_time)(struct rtc_time *); |
146 | void (*get_rtc_time)(struct rtc_time *); | |
143a1dec PM |
147 | unsigned long (*get_boot_time)(void); |
148 | unsigned char (*rtc_read_val)(int addr); | |
149 | void (*rtc_write_val)(int addr, unsigned char val); | |
1da177e4 LT |
150 | |
151 | void (*calibrate_decr)(void); | |
152 | ||
153 | void (*progress)(char *, unsigned short); | |
154 | ||
1da177e4 LT |
155 | /* Interface for platform error logging */ |
156 | void (*log_error)(char *buf, unsigned int err_type, int fatal); | |
157 | ||
35499c01 PM |
158 | unsigned char (*nvram_read_val)(int addr); |
159 | void (*nvram_write_val)(int addr, unsigned char val); | |
1da177e4 LT |
160 | ssize_t (*nvram_write)(char *buf, size_t count, loff_t *index); |
161 | ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index); | |
162 | ssize_t (*nvram_size)(void); | |
143a1dec | 163 | void (*nvram_sync)(void); |
1da177e4 LT |
164 | |
165 | /* Exception handlers */ | |
c902be71 | 166 | int (*system_reset_exception)(struct pt_regs *regs); |
1da177e4 LT |
167 | int (*machine_check_exception)(struct pt_regs *regs); |
168 | ||
169 | /* Motherboard/chipset features. This is a kind of general purpose | |
170 | * hook used to control some machine specific features (like reset | |
171 | * lines, chip power control, etc...). | |
172 | */ | |
173 | long (*feature_call)(unsigned int feature, ...); | |
174 | ||
1da177e4 LT |
175 | /* Get legacy PCI/IDE interrupt mapping */ |
176 | int (*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel); | |
177 | ||
178 | /* Get access protection for /dev/mem */ | |
179 | pgprot_t (*phys_mem_access_prot)(struct file *file, | |
8b150478 | 180 | unsigned long pfn, |
1da177e4 LT |
181 | unsigned long size, |
182 | pgprot_t vma_prot); | |
183 | ||
fd899c0c | 184 | /* Idle loop for this platform, leave empty for default idle loop */ |
143a1dec | 185 | void (*idle_loop)(void); |
180a3362 | 186 | |
a0652fc9 PM |
187 | /* |
188 | * Function for waiting for work with reduced power in idle loop; | |
189 | * called with interrupts disabled. | |
190 | */ | |
191 | void (*power_save)(void); | |
192 | ||
143a1dec PM |
193 | /* Function to enable performance monitor counters for this |
194 | platform, called once per cpu. */ | |
180a3362 | 195 | void (*enable_pmcs)(void); |
143a1dec | 196 | |
76032de8 ME |
197 | /* Set DABR for this platform, leave empty for default implemenation */ |
198 | int (*set_dabr)(unsigned long dabr); | |
199 | ||
143a1dec | 200 | #ifdef CONFIG_PPC32 /* XXX for now */ |
143a1dec PM |
201 | /* A general init function, called by ppc_init in init/main.c. |
202 | May be NULL. */ | |
203 | void (*init)(void); | |
204 | ||
143a1dec PM |
205 | void (*kgdb_map_scc)(void); |
206 | ||
143a1dec PM |
207 | /* |
208 | * optional PCI "hooks" | |
209 | */ | |
143a1dec PM |
210 | /* Called at then very end of pcibios_init() */ |
211 | void (*pcibios_after_init)(void); | |
212 | ||
3d1229d6 | 213 | #endif /* CONFIG_PPC32 */ |
143a1dec | 214 | |
89c2dd62 KG |
215 | /* Called in indirect_* to avoid touching devices */ |
216 | int (*pci_exclude_device)(struct pci_controller *, unsigned char, unsigned char); | |
217 | ||
bf5e2ba2 BH |
218 | /* Called after PPC generic resource fixup to perform |
219 | machine specific fixups */ | |
220 | void (*pcibios_fixup_resources)(struct pci_dev *); | |
221 | ||
222 | /* Called for each PCI bus in the system when it's probed */ | |
223 | void (*pcibios_fixup_bus)(struct pci_bus *); | |
224 | ||
549beb9b BH |
225 | /* Called when pci_enable_device() is called. Returns 0 to |
226 | * allow assignment/enabling of the device. */ | |
227 | int (*pcibios_enable_device_hook)(struct pci_dev *); | |
228 | ||
143a1dec PM |
229 | /* Called to shutdown machine specific hardware not already controlled |
230 | * by other drivers. | |
143a1dec PM |
231 | */ |
232 | void (*machine_shutdown)(void); | |
233 | ||
3d1229d6 | 234 | #ifdef CONFIG_KEXEC |
50266a1f AB |
235 | void (*kexec_cpu_down)(int crash_shutdown, int secondary); |
236 | ||
143a1dec PM |
237 | /* Called to do what every setup is needed on image and the |
238 | * reboot code buffer. Returns 0 on success. | |
239 | * Provide your own (maybe dummy) implementation if your platform | |
240 | * claims to support kexec. | |
241 | */ | |
242 | int (*machine_kexec_prepare)(struct kimage *image); | |
357574c4 AB |
243 | |
244 | /* Called to perform the _real_ kexec. | |
245 | * Do NOT allocate memory or fail here. We are past the point of | |
246 | * no return. | |
247 | */ | |
248 | void (*machine_kexec)(struct kimage *image); | |
143a1dec | 249 | #endif /* CONFIG_KEXEC */ |
7ac5dde9 SW |
250 | |
251 | #ifdef CONFIG_SUSPEND | |
252 | /* These are called to disable and enable, respectively, IRQs when | |
253 | * entering a suspend state. If NULL, then the generic versions | |
254 | * will be called. The generic versions disable/enable the | |
255 | * decrementer along with interrupts. | |
256 | */ | |
257 | void (*suspend_disable_irqs)(void); | |
258 | void (*suspend_enable_irqs)(void); | |
259 | #endif | |
32d8ad4e | 260 | int (*suspend_disable_cpu)(void); |
12633e80 NF |
261 | |
262 | #ifdef CONFIG_ARCH_CPU_PROBE_RELEASE | |
263 | ssize_t (*cpu_probe)(const char *, size_t); | |
264 | ssize_t (*cpu_release)(const char *, size_t); | |
265 | #endif | |
1da177e4 LT |
266 | }; |
267 | ||
fc4033b2 | 268 | extern void e500_idle(void); |
a0652fc9 | 269 | extern void power4_idle(void); |
948cf67c | 270 | extern void power7_idle(void); |
a0652fc9 | 271 | extern void ppc6xx_idle(void); |
34d97e07 | 272 | extern void book3e_idle(void); |
fd899c0c | 273 | |
e8222502 BH |
274 | /* |
275 | * ppc_md contains a copy of the machine description structure for the | |
276 | * current platform. machine_id contains the initial address where the | |
277 | * description was found during boot. | |
278 | */ | |
1da177e4 | 279 | extern struct machdep_calls ppc_md; |
e8222502 BH |
280 | extern struct machdep_calls *machine_id; |
281 | ||
282 | #define __machine_desc __attribute__ ((__section__ (".machine.desc"))) | |
283 | ||
d0e15bed PM |
284 | #define define_machine(name) \ |
285 | extern struct machdep_calls mach_##name; \ | |
286 | EXPORT_SYMBOL(mach_##name); \ | |
287 | struct machdep_calls mach_##name __machine_desc = | |
288 | ||
e8222502 BH |
289 | #define machine_is(name) \ |
290 | ({ \ | |
291 | extern struct machdep_calls mach_##name \ | |
292 | __attribute__((weak)); \ | |
293 | machine_id == &mach_##name; \ | |
294 | }) | |
295 | ||
296 | extern void probe_machine(void); | |
297 | ||
1da177e4 LT |
298 | extern char cmd_line[COMMAND_LINE_SIZE]; |
299 | ||
300 | #ifdef CONFIG_PPC_PMAC | |
301 | /* | |
302 | * Power macintoshes have either a CUDA, PMU or SMU controlling | |
303 | * system reset, power, NVRAM, RTC. | |
304 | */ | |
305 | typedef enum sys_ctrler_kind { | |
306 | SYS_CTRLER_UNKNOWN = 0, | |
307 | SYS_CTRLER_CUDA = 1, | |
308 | SYS_CTRLER_PMU = 2, | |
309 | SYS_CTRLER_SMU = 3, | |
310 | } sys_ctrler_t; | |
311 | extern sys_ctrler_t sys_ctrler; | |
312 | ||
313 | #endif /* CONFIG_PPC_PMAC */ | |
314 | ||
143a1dec PM |
315 | #ifdef CONFIG_SMP |
316 | /* Poor default implementations */ | |
317 | extern void __devinit smp_generic_give_timebase(void); | |
318 | extern void __devinit smp_generic_take_timebase(void); | |
319 | #endif /* CONFIG_SMP */ | |
1da177e4 LT |
320 | |
321 | ||
322 | /* Functions to produce codes on the leds. | |
323 | * The SRC code should be unique for the message category and should | |
324 | * be limited to the lower 24 bits (the upper 8 are set by these funcs), | |
325 | * and (for boot & dump) should be sorted numerically in the order | |
326 | * the events occur. | |
327 | */ | |
328 | /* Print a boot progress message. */ | |
329 | void ppc64_boot_msg(unsigned int src, const char *msg); | |
1da177e4 LT |
330 | |
331 | static inline void log_error(char *buf, unsigned int err_type, int fatal) | |
332 | { | |
333 | if (ppc_md.log_error) | |
334 | ppc_md.log_error(buf, err_type, fatal); | |
335 | } | |
336 | ||
800d68c3 GL |
337 | #define __define_machine_initcall(mach,level,fn,id) \ |
338 | static int __init __machine_initcall_##mach##_##fn(void) { \ | |
339 | if (machine_is(mach)) return fn(); \ | |
340 | return 0; \ | |
341 | } \ | |
342 | __define_initcall(level,__machine_initcall_##mach##_##fn,id); | |
343 | ||
344 | #define machine_core_initcall(mach,fn) __define_machine_initcall(mach,"1",fn,1) | |
345 | #define machine_core_initcall_sync(mach,fn) __define_machine_initcall(mach,"1s",fn,1s) | |
346 | #define machine_postcore_initcall(mach,fn) __define_machine_initcall(mach,"2",fn,2) | |
347 | #define machine_postcore_initcall_sync(mach,fn) __define_machine_initcall(mach,"2s",fn,2s) | |
348 | #define machine_arch_initcall(mach,fn) __define_machine_initcall(mach,"3",fn,3) | |
349 | #define machine_arch_initcall_sync(mach,fn) __define_machine_initcall(mach,"3s",fn,3s) | |
350 | #define machine_subsys_initcall(mach,fn) __define_machine_initcall(mach,"4",fn,4) | |
351 | #define machine_subsys_initcall_sync(mach,fn) __define_machine_initcall(mach,"4s",fn,4s) | |
352 | #define machine_fs_initcall(mach,fn) __define_machine_initcall(mach,"5",fn,5) | |
353 | #define machine_fs_initcall_sync(mach,fn) __define_machine_initcall(mach,"5s",fn,5s) | |
354 | #define machine_rootfs_initcall(mach,fn) __define_machine_initcall(mach,"rootfs",fn,rootfs) | |
355 | #define machine_device_initcall(mach,fn) __define_machine_initcall(mach,"6",fn,6) | |
356 | #define machine_device_initcall_sync(mach,fn) __define_machine_initcall(mach,"6s",fn,6s) | |
357 | #define machine_late_initcall(mach,fn) __define_machine_initcall(mach,"7",fn,7) | |
358 | #define machine_late_initcall_sync(mach,fn) __define_machine_initcall(mach,"7s",fn,7s) | |
359 | ||
1da177e4 | 360 | #endif /* __KERNEL__ */ |
b41fc4f8 | 361 | #endif /* _ASM_POWERPC_MACHDEP_H */ |