Commit | Line | Data |
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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 ME |
30 | #ifdef CONFIG_KEXEC |
31 | struct kimage; | |
32 | #endif | |
1da177e4 LT |
33 | |
34 | #ifdef CONFIG_SMP | |
35 | struct smp_ops_t { | |
36 | void (*message_pass)(int target, int msg); | |
37 | int (*probe)(void); | |
38 | void (*kick_cpu)(int nr); | |
39 | void (*setup_cpu)(int nr); | |
40 | void (*take_timebase)(void); | |
41 | void (*give_timebase)(void); | |
42 | int (*cpu_enable)(unsigned int nr); | |
43 | int (*cpu_disable)(void); | |
44 | void (*cpu_die)(unsigned int nr); | |
45 | int (*cpu_bootable)(unsigned int nr); | |
46 | }; | |
47 | #endif | |
48 | ||
49 | struct machdep_calls { | |
e8222502 | 50 | char *name; |
143a1dec | 51 | #ifdef CONFIG_PPC64 |
1da177e4 LT |
52 | void (*hpte_invalidate)(unsigned long slot, |
53 | unsigned long va, | |
3c726f8d | 54 | int psize, |
1da177e4 LT |
55 | int local); |
56 | long (*hpte_updatepp)(unsigned long slot, | |
57 | unsigned long newpp, | |
58 | unsigned long va, | |
3c726f8d | 59 | int pize, |
1da177e4 LT |
60 | int local); |
61 | void (*hpte_updateboltedpp)(unsigned long newpp, | |
3c726f8d BH |
62 | unsigned long ea, |
63 | int psize); | |
1da177e4 LT |
64 | long (*hpte_insert)(unsigned long hpte_group, |
65 | unsigned long va, | |
66 | unsigned long prpn, | |
3c726f8d | 67 | unsigned long rflags, |
96e28449 | 68 | unsigned long vflags, |
3c726f8d | 69 | int psize); |
1da177e4 | 70 | long (*hpte_remove)(unsigned long hpte_group); |
61b1a942 BH |
71 | void (*flush_hash_range)(unsigned long number, int local); |
72 | ||
1da177e4 LT |
73 | /* special for kexec, to be called in real mode, linar mapping is |
74 | * destroyed as well */ | |
75 | void (*hpte_clear_all)(void); | |
76 | ||
77 | void (*tce_build)(struct iommu_table * tbl, | |
78 | long index, | |
79 | long npages, | |
80 | unsigned long uaddr, | |
81 | enum dma_data_direction direction); | |
82 | void (*tce_free)(struct iommu_table *tbl, | |
83 | long index, | |
84 | long npages); | |
5f50867b HM |
85 | unsigned long (*tce_get)(struct iommu_table *tbl, |
86 | long index); | |
1da177e4 | 87 | void (*tce_flush)(struct iommu_table *tbl); |
12d04eef BH |
88 | void (*pci_dma_dev_setup)(struct pci_dev *dev); |
89 | void (*pci_dma_bus_setup)(struct pci_bus *bus); | |
4cb3cee0 | 90 | |
68a64357 | 91 | void __iomem * (*ioremap)(phys_addr_t addr, unsigned long size, |
4cb3cee0 | 92 | unsigned long flags); |
68a64357 | 93 | void (*iounmap)(volatile void __iomem *token); |
7e11580b JB |
94 | |
95 | #ifdef CONFIG_PM | |
96 | void (*iommu_save)(void); | |
97 | void (*iommu_restore)(void); | |
98 | #endif | |
e8222502 | 99 | #endif /* CONFIG_PPC64 */ |
1da177e4 | 100 | |
e8222502 | 101 | int (*probe)(void); |
1da177e4 LT |
102 | void (*setup_arch)(void); |
103 | void (*init_early)(void); | |
104 | /* Optional, may be NULL. */ | |
d8699e65 PM |
105 | void (*show_cpuinfo)(struct seq_file *m); |
106 | void (*show_percpuinfo)(struct seq_file *m, int i); | |
1da177e4 LT |
107 | |
108 | void (*init_IRQ)(void); | |
35a84c2f | 109 | unsigned int (*get_irq)(void); |
c5e24354 ME |
110 | #ifdef CONFIG_KEXEC |
111 | void (*kexec_cpu_down)(int crash_shutdown, int secondary); | |
112 | #endif | |
1da177e4 LT |
113 | |
114 | /* PCI stuff */ | |
143a1dec | 115 | /* Called after scanning the bus, before allocating resources */ |
1da177e4 | 116 | void (*pcibios_fixup)(void); |
4267292b | 117 | int (*pci_probe_mode)(struct pci_bus *); |
f90bb153 | 118 | void (*pci_irq_fixup)(struct pci_dev *dev); |
1da177e4 | 119 | |
4c9d2800 BH |
120 | /* To setup PHBs when using automatic OF platform driver for PCI */ |
121 | int (*pci_setup_phb)(struct pci_controller *host); | |
122 | ||
df87ef55 ME |
123 | #ifdef CONFIG_PCI_MSI |
124 | int (*msi_check_device)(struct pci_dev* dev, | |
125 | int nvec, int type); | |
126 | int (*setup_msi_irqs)(struct pci_dev *dev, | |
127 | int nvec, int type); | |
128 | void (*teardown_msi_irqs)(struct pci_dev *dev); | |
129 | #endif | |
130 | ||
1da177e4 LT |
131 | void (*restart)(char *cmd); |
132 | void (*power_off)(void); | |
133 | void (*halt)(void); | |
134 | void (*panic)(char *str); | |
135 | void (*cpu_die)(void); | |
136 | ||
143a1dec PM |
137 | long (*time_init)(void); /* Optional, may be NULL */ |
138 | ||
1da177e4 LT |
139 | int (*set_rtc_time)(struct rtc_time *); |
140 | void (*get_rtc_time)(struct rtc_time *); | |
143a1dec PM |
141 | unsigned long (*get_boot_time)(void); |
142 | unsigned char (*rtc_read_val)(int addr); | |
143 | void (*rtc_write_val)(int addr, unsigned char val); | |
1da177e4 LT |
144 | |
145 | void (*calibrate_decr)(void); | |
146 | ||
147 | void (*progress)(char *, unsigned short); | |
148 | ||
1da177e4 LT |
149 | /* Interface for platform error logging */ |
150 | void (*log_error)(char *buf, unsigned int err_type, int fatal); | |
151 | ||
35499c01 PM |
152 | unsigned char (*nvram_read_val)(int addr); |
153 | void (*nvram_write_val)(int addr, unsigned char val); | |
1da177e4 LT |
154 | ssize_t (*nvram_write)(char *buf, size_t count, loff_t *index); |
155 | ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index); | |
156 | ssize_t (*nvram_size)(void); | |
143a1dec | 157 | void (*nvram_sync)(void); |
1da177e4 LT |
158 | |
159 | /* Exception handlers */ | |
c902be71 | 160 | int (*system_reset_exception)(struct pt_regs *regs); |
1da177e4 LT |
161 | int (*machine_check_exception)(struct pt_regs *regs); |
162 | ||
163 | /* Motherboard/chipset features. This is a kind of general purpose | |
164 | * hook used to control some machine specific features (like reset | |
165 | * lines, chip power control, etc...). | |
166 | */ | |
167 | long (*feature_call)(unsigned int feature, ...); | |
168 | ||
1da177e4 LT |
169 | /* Get legacy PCI/IDE interrupt mapping */ |
170 | int (*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel); | |
171 | ||
172 | /* Get access protection for /dev/mem */ | |
173 | pgprot_t (*phys_mem_access_prot)(struct file *file, | |
8b150478 | 174 | unsigned long pfn, |
1da177e4 LT |
175 | unsigned long size, |
176 | pgprot_t vma_prot); | |
177 | ||
fd899c0c | 178 | /* Idle loop for this platform, leave empty for default idle loop */ |
143a1dec | 179 | void (*idle_loop)(void); |
180a3362 | 180 | |
a0652fc9 PM |
181 | /* |
182 | * Function for waiting for work with reduced power in idle loop; | |
183 | * called with interrupts disabled. | |
184 | */ | |
185 | void (*power_save)(void); | |
186 | ||
143a1dec PM |
187 | /* Function to enable performance monitor counters for this |
188 | platform, called once per cpu. */ | |
180a3362 | 189 | void (*enable_pmcs)(void); |
143a1dec | 190 | |
76032de8 ME |
191 | /* Set DABR for this platform, leave empty for default implemenation */ |
192 | int (*set_dabr)(unsigned long dabr); | |
193 | ||
143a1dec | 194 | #ifdef CONFIG_PPC32 /* XXX for now */ |
143a1dec PM |
195 | /* A general init function, called by ppc_init in init/main.c. |
196 | May be NULL. */ | |
197 | void (*init)(void); | |
198 | ||
143a1dec PM |
199 | void (*setup_io_mappings)(void); |
200 | ||
201 | void (*early_serial_map)(void); | |
202 | void (*kgdb_map_scc)(void); | |
203 | ||
143a1dec PM |
204 | /* |
205 | * optional PCI "hooks" | |
206 | */ | |
207 | ||
208 | /* Called after PPC generic resource fixup to perform | |
209 | machine specific fixups */ | |
210 | void (*pcibios_fixup_resources)(struct pci_dev *); | |
211 | ||
212 | /* Called for each PCI bus in the system when it's probed */ | |
213 | void (*pcibios_fixup_bus)(struct pci_bus *); | |
214 | ||
215 | /* Called when pci_enable_device() is called (initial=0) or | |
216 | * when a device with no assigned resource is found (initial=1). | |
217 | * Returns 0 to allow assignment/enabling of the device. */ | |
218 | int (*pcibios_enable_device_hook)(struct pci_dev *, int initial); | |
219 | ||
143a1dec PM |
220 | /* Called in indirect_* to avoid touching devices */ |
221 | int (*pci_exclude_device)(unsigned char, unsigned char); | |
222 | ||
223 | /* Called at then very end of pcibios_init() */ | |
224 | void (*pcibios_after_init)(void); | |
225 | ||
3d1229d6 | 226 | #endif /* CONFIG_PPC32 */ |
143a1dec | 227 | |
143a1dec PM |
228 | /* Called to shutdown machine specific hardware not already controlled |
229 | * by other drivers. | |
143a1dec PM |
230 | */ |
231 | void (*machine_shutdown)(void); | |
232 | ||
3d1229d6 | 233 | #ifdef CONFIG_KEXEC |
143a1dec PM |
234 | /* Called to do the minimal shutdown needed to run a kexec'd kernel |
235 | * to run successfully. | |
236 | * XXX Should we move this one out of kexec scope? | |
237 | */ | |
cd0ca2ce | 238 | void (*machine_crash_shutdown)(struct pt_regs *regs); |
143a1dec PM |
239 | |
240 | /* Called to do what every setup is needed on image and the | |
241 | * reboot code buffer. Returns 0 on success. | |
242 | * Provide your own (maybe dummy) implementation if your platform | |
243 | * claims to support kexec. | |
244 | */ | |
245 | int (*machine_kexec_prepare)(struct kimage *image); | |
246 | ||
247 | /* Called to handle any machine specific cleanup on image */ | |
248 | void (*machine_kexec_cleanup)(struct kimage *image); | |
249 | ||
250 | /* Called to perform the _real_ kexec. | |
251 | * Do NOT allocate memory or fail here. We are past the point of | |
252 | * no return. | |
253 | */ | |
254 | void (*machine_kexec)(struct kimage *image); | |
255 | #endif /* CONFIG_KEXEC */ | |
1da177e4 LT |
256 | }; |
257 | ||
a0652fc9 | 258 | extern void power4_idle(void); |
d9333afd | 259 | extern void power4_cpu_offline_powersave(void); |
a0652fc9 | 260 | extern void ppc6xx_idle(void); |
fd899c0c | 261 | |
e8222502 BH |
262 | /* |
263 | * ppc_md contains a copy of the machine description structure for the | |
264 | * current platform. machine_id contains the initial address where the | |
265 | * description was found during boot. | |
266 | */ | |
1da177e4 | 267 | extern struct machdep_calls ppc_md; |
e8222502 BH |
268 | extern struct machdep_calls *machine_id; |
269 | ||
270 | #define __machine_desc __attribute__ ((__section__ (".machine.desc"))) | |
271 | ||
d0e15bed PM |
272 | #define define_machine(name) \ |
273 | extern struct machdep_calls mach_##name; \ | |
274 | EXPORT_SYMBOL(mach_##name); \ | |
275 | struct machdep_calls mach_##name __machine_desc = | |
276 | ||
e8222502 BH |
277 | #define machine_is(name) \ |
278 | ({ \ | |
279 | extern struct machdep_calls mach_##name \ | |
280 | __attribute__((weak)); \ | |
281 | machine_id == &mach_##name; \ | |
282 | }) | |
283 | ||
284 | extern void probe_machine(void); | |
285 | ||
1da177e4 LT |
286 | extern char cmd_line[COMMAND_LINE_SIZE]; |
287 | ||
288 | #ifdef CONFIG_PPC_PMAC | |
289 | /* | |
290 | * Power macintoshes have either a CUDA, PMU or SMU controlling | |
291 | * system reset, power, NVRAM, RTC. | |
292 | */ | |
293 | typedef enum sys_ctrler_kind { | |
294 | SYS_CTRLER_UNKNOWN = 0, | |
295 | SYS_CTRLER_CUDA = 1, | |
296 | SYS_CTRLER_PMU = 2, | |
297 | SYS_CTRLER_SMU = 3, | |
298 | } sys_ctrler_t; | |
299 | extern sys_ctrler_t sys_ctrler; | |
300 | ||
301 | #endif /* CONFIG_PPC_PMAC */ | |
302 | ||
143a1dec PM |
303 | extern void setup_pci_ptrs(void); |
304 | ||
305 | #ifdef CONFIG_SMP | |
306 | /* Poor default implementations */ | |
307 | extern void __devinit smp_generic_give_timebase(void); | |
308 | extern void __devinit smp_generic_take_timebase(void); | |
309 | #endif /* CONFIG_SMP */ | |
1da177e4 LT |
310 | |
311 | ||
312 | /* Functions to produce codes on the leds. | |
313 | * The SRC code should be unique for the message category and should | |
314 | * be limited to the lower 24 bits (the upper 8 are set by these funcs), | |
315 | * and (for boot & dump) should be sorted numerically in the order | |
316 | * the events occur. | |
317 | */ | |
318 | /* Print a boot progress message. */ | |
319 | void ppc64_boot_msg(unsigned int src, const char *msg); | |
320 | /* Print a termination message (print only -- does not stop the kernel) */ | |
321 | void ppc64_terminate_msg(unsigned int src, const char *msg); | |
1da177e4 LT |
322 | |
323 | static inline void log_error(char *buf, unsigned int err_type, int fatal) | |
324 | { | |
325 | if (ppc_md.log_error) | |
326 | ppc_md.log_error(buf, err_type, fatal); | |
327 | } | |
328 | ||
1da177e4 | 329 | #endif /* __KERNEL__ */ |
b41fc4f8 | 330 | #endif /* _ASM_POWERPC_MACHDEP_H */ |