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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); |
e8222502 | 94 | #endif /* CONFIG_PPC64 */ |
1da177e4 | 95 | |
e8222502 | 96 | int (*probe)(void); |
1da177e4 LT |
97 | void (*setup_arch)(void); |
98 | void (*init_early)(void); | |
99 | /* Optional, may be NULL. */ | |
d8699e65 PM |
100 | void (*show_cpuinfo)(struct seq_file *m); |
101 | void (*show_percpuinfo)(struct seq_file *m, int i); | |
1da177e4 LT |
102 | |
103 | void (*init_IRQ)(void); | |
35a84c2f | 104 | unsigned int (*get_irq)(void); |
c5e24354 ME |
105 | #ifdef CONFIG_KEXEC |
106 | void (*kexec_cpu_down)(int crash_shutdown, int secondary); | |
107 | #endif | |
1da177e4 LT |
108 | |
109 | /* PCI stuff */ | |
143a1dec | 110 | /* Called after scanning the bus, before allocating resources */ |
1da177e4 | 111 | void (*pcibios_fixup)(void); |
4267292b | 112 | int (*pci_probe_mode)(struct pci_bus *); |
f90bb153 | 113 | void (*pci_irq_fixup)(struct pci_dev *dev); |
1da177e4 | 114 | |
4c9d2800 BH |
115 | /* To setup PHBs when using automatic OF platform driver for PCI */ |
116 | int (*pci_setup_phb)(struct pci_controller *host); | |
117 | ||
1da177e4 LT |
118 | void (*restart)(char *cmd); |
119 | void (*power_off)(void); | |
120 | void (*halt)(void); | |
121 | void (*panic)(char *str); | |
122 | void (*cpu_die)(void); | |
123 | ||
143a1dec PM |
124 | long (*time_init)(void); /* Optional, may be NULL */ |
125 | ||
1da177e4 LT |
126 | int (*set_rtc_time)(struct rtc_time *); |
127 | void (*get_rtc_time)(struct rtc_time *); | |
143a1dec PM |
128 | unsigned long (*get_boot_time)(void); |
129 | unsigned char (*rtc_read_val)(int addr); | |
130 | void (*rtc_write_val)(int addr, unsigned char val); | |
1da177e4 LT |
131 | |
132 | void (*calibrate_decr)(void); | |
133 | ||
134 | void (*progress)(char *, unsigned short); | |
135 | ||
1da177e4 LT |
136 | /* Interface for platform error logging */ |
137 | void (*log_error)(char *buf, unsigned int err_type, int fatal); | |
138 | ||
35499c01 PM |
139 | unsigned char (*nvram_read_val)(int addr); |
140 | void (*nvram_write_val)(int addr, unsigned char val); | |
1da177e4 LT |
141 | ssize_t (*nvram_write)(char *buf, size_t count, loff_t *index); |
142 | ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index); | |
143 | ssize_t (*nvram_size)(void); | |
143a1dec | 144 | void (*nvram_sync)(void); |
1da177e4 LT |
145 | |
146 | /* Exception handlers */ | |
c902be71 | 147 | int (*system_reset_exception)(struct pt_regs *regs); |
1da177e4 LT |
148 | int (*machine_check_exception)(struct pt_regs *regs); |
149 | ||
150 | /* Motherboard/chipset features. This is a kind of general purpose | |
151 | * hook used to control some machine specific features (like reset | |
152 | * lines, chip power control, etc...). | |
153 | */ | |
154 | long (*feature_call)(unsigned int feature, ...); | |
155 | ||
156 | /* Check availability of legacy devices like i8042 */ | |
157 | int (*check_legacy_ioport)(unsigned int baseport); | |
158 | ||
159 | /* Get legacy PCI/IDE interrupt mapping */ | |
160 | int (*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel); | |
161 | ||
162 | /* Get access protection for /dev/mem */ | |
163 | pgprot_t (*phys_mem_access_prot)(struct file *file, | |
8b150478 | 164 | unsigned long pfn, |
1da177e4 LT |
165 | unsigned long size, |
166 | pgprot_t vma_prot); | |
167 | ||
fd899c0c | 168 | /* Idle loop for this platform, leave empty for default idle loop */ |
143a1dec | 169 | void (*idle_loop)(void); |
180a3362 | 170 | |
a0652fc9 PM |
171 | /* |
172 | * Function for waiting for work with reduced power in idle loop; | |
173 | * called with interrupts disabled. | |
174 | */ | |
175 | void (*power_save)(void); | |
176 | ||
143a1dec PM |
177 | /* Function to enable performance monitor counters for this |
178 | platform, called once per cpu. */ | |
180a3362 | 179 | void (*enable_pmcs)(void); |
143a1dec | 180 | |
76032de8 ME |
181 | /* Set DABR for this platform, leave empty for default implemenation */ |
182 | int (*set_dabr)(unsigned long dabr); | |
183 | ||
143a1dec | 184 | #ifdef CONFIG_PPC32 /* XXX for now */ |
143a1dec PM |
185 | /* A general init function, called by ppc_init in init/main.c. |
186 | May be NULL. */ | |
187 | void (*init)(void); | |
188 | ||
143a1dec PM |
189 | void (*setup_io_mappings)(void); |
190 | ||
191 | void (*early_serial_map)(void); | |
192 | void (*kgdb_map_scc)(void); | |
193 | ||
143a1dec PM |
194 | /* |
195 | * optional PCI "hooks" | |
196 | */ | |
197 | ||
198 | /* Called after PPC generic resource fixup to perform | |
199 | machine specific fixups */ | |
200 | void (*pcibios_fixup_resources)(struct pci_dev *); | |
201 | ||
202 | /* Called for each PCI bus in the system when it's probed */ | |
203 | void (*pcibios_fixup_bus)(struct pci_bus *); | |
204 | ||
205 | /* Called when pci_enable_device() is called (initial=0) or | |
206 | * when a device with no assigned resource is found (initial=1). | |
207 | * Returns 0 to allow assignment/enabling of the device. */ | |
208 | int (*pcibios_enable_device_hook)(struct pci_dev *, int initial); | |
209 | ||
143a1dec PM |
210 | /* Called in indirect_* to avoid touching devices */ |
211 | int (*pci_exclude_device)(unsigned char, unsigned char); | |
212 | ||
213 | /* Called at then very end of pcibios_init() */ | |
214 | void (*pcibios_after_init)(void); | |
215 | ||
3d1229d6 | 216 | #endif /* CONFIG_PPC32 */ |
143a1dec | 217 | |
143a1dec PM |
218 | /* Called to shutdown machine specific hardware not already controlled |
219 | * by other drivers. | |
143a1dec PM |
220 | */ |
221 | void (*machine_shutdown)(void); | |
222 | ||
3d1229d6 | 223 | #ifdef CONFIG_KEXEC |
143a1dec PM |
224 | /* Called to do the minimal shutdown needed to run a kexec'd kernel |
225 | * to run successfully. | |
226 | * XXX Should we move this one out of kexec scope? | |
227 | */ | |
cd0ca2ce | 228 | void (*machine_crash_shutdown)(struct pt_regs *regs); |
143a1dec PM |
229 | |
230 | /* Called to do what every setup is needed on image and the | |
231 | * reboot code buffer. Returns 0 on success. | |
232 | * Provide your own (maybe dummy) implementation if your platform | |
233 | * claims to support kexec. | |
234 | */ | |
235 | int (*machine_kexec_prepare)(struct kimage *image); | |
236 | ||
237 | /* Called to handle any machine specific cleanup on image */ | |
238 | void (*machine_kexec_cleanup)(struct kimage *image); | |
239 | ||
240 | /* Called to perform the _real_ kexec. | |
241 | * Do NOT allocate memory or fail here. We are past the point of | |
242 | * no return. | |
243 | */ | |
244 | void (*machine_kexec)(struct kimage *image); | |
245 | #endif /* CONFIG_KEXEC */ | |
204face4 JM |
246 | |
247 | #ifdef CONFIG_PCI_MSI | |
248 | int (*enable_msi)(struct pci_dev *pdev); | |
249 | void (*disable_msi)(struct pci_dev *pdev); | |
250 | #endif /* CONFIG_PCI_MSI */ | |
1da177e4 LT |
251 | }; |
252 | ||
a0652fc9 PM |
253 | extern void power4_idle(void); |
254 | extern void ppc6xx_idle(void); | |
fd899c0c | 255 | |
e8222502 BH |
256 | /* |
257 | * ppc_md contains a copy of the machine description structure for the | |
258 | * current platform. machine_id contains the initial address where the | |
259 | * description was found during boot. | |
260 | */ | |
1da177e4 | 261 | extern struct machdep_calls ppc_md; |
e8222502 BH |
262 | extern struct machdep_calls *machine_id; |
263 | ||
264 | #define __machine_desc __attribute__ ((__section__ (".machine.desc"))) | |
265 | ||
d0e15bed PM |
266 | #define define_machine(name) \ |
267 | extern struct machdep_calls mach_##name; \ | |
268 | EXPORT_SYMBOL(mach_##name); \ | |
269 | struct machdep_calls mach_##name __machine_desc = | |
270 | ||
e8222502 BH |
271 | #define machine_is(name) \ |
272 | ({ \ | |
273 | extern struct machdep_calls mach_##name \ | |
274 | __attribute__((weak)); \ | |
275 | machine_id == &mach_##name; \ | |
276 | }) | |
277 | ||
278 | extern void probe_machine(void); | |
279 | ||
1da177e4 LT |
280 | extern char cmd_line[COMMAND_LINE_SIZE]; |
281 | ||
282 | #ifdef CONFIG_PPC_PMAC | |
283 | /* | |
284 | * Power macintoshes have either a CUDA, PMU or SMU controlling | |
285 | * system reset, power, NVRAM, RTC. | |
286 | */ | |
287 | typedef enum sys_ctrler_kind { | |
288 | SYS_CTRLER_UNKNOWN = 0, | |
289 | SYS_CTRLER_CUDA = 1, | |
290 | SYS_CTRLER_PMU = 2, | |
291 | SYS_CTRLER_SMU = 3, | |
292 | } sys_ctrler_t; | |
293 | extern sys_ctrler_t sys_ctrler; | |
294 | ||
295 | #endif /* CONFIG_PPC_PMAC */ | |
296 | ||
143a1dec PM |
297 | extern void setup_pci_ptrs(void); |
298 | ||
299 | #ifdef CONFIG_SMP | |
300 | /* Poor default implementations */ | |
301 | extern void __devinit smp_generic_give_timebase(void); | |
302 | extern void __devinit smp_generic_take_timebase(void); | |
303 | #endif /* CONFIG_SMP */ | |
1da177e4 LT |
304 | |
305 | ||
306 | /* Functions to produce codes on the leds. | |
307 | * The SRC code should be unique for the message category and should | |
308 | * be limited to the lower 24 bits (the upper 8 are set by these funcs), | |
309 | * and (for boot & dump) should be sorted numerically in the order | |
310 | * the events occur. | |
311 | */ | |
312 | /* Print a boot progress message. */ | |
313 | void ppc64_boot_msg(unsigned int src, const char *msg); | |
314 | /* Print a termination message (print only -- does not stop the kernel) */ | |
315 | void ppc64_terminate_msg(unsigned int src, const char *msg); | |
1da177e4 LT |
316 | |
317 | static inline void log_error(char *buf, unsigned int err_type, int fatal) | |
318 | { | |
319 | if (ppc_md.log_error) | |
320 | ppc_md.log_error(buf, err_type, fatal); | |
321 | } | |
322 | ||
1da177e4 | 323 | #endif /* __KERNEL__ */ |
b41fc4f8 | 324 | #endif /* _ASM_POWERPC_MACHDEP_H */ |