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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; | |
3d1229d6 ME |
29 | #ifdef CONFIG_KEXEC |
30 | struct kimage; | |
31 | #endif | |
1da177e4 LT |
32 | |
33 | #ifdef CONFIG_SMP | |
34 | struct smp_ops_t { | |
35 | void (*message_pass)(int target, int msg); | |
36 | int (*probe)(void); | |
37 | void (*kick_cpu)(int nr); | |
38 | void (*setup_cpu)(int nr); | |
39 | void (*take_timebase)(void); | |
40 | void (*give_timebase)(void); | |
41 | int (*cpu_enable)(unsigned int nr); | |
42 | int (*cpu_disable)(void); | |
43 | void (*cpu_die)(unsigned int nr); | |
44 | int (*cpu_bootable)(unsigned int nr); | |
45 | }; | |
46 | #endif | |
47 | ||
48 | struct machdep_calls { | |
e8222502 | 49 | char *name; |
143a1dec | 50 | #ifdef CONFIG_PPC64 |
1da177e4 LT |
51 | void (*hpte_invalidate)(unsigned long slot, |
52 | unsigned long va, | |
3c726f8d | 53 | int psize, |
1da177e4 LT |
54 | int local); |
55 | long (*hpte_updatepp)(unsigned long slot, | |
56 | unsigned long newpp, | |
57 | unsigned long va, | |
3c726f8d | 58 | int pize, |
1da177e4 LT |
59 | int local); |
60 | void (*hpte_updateboltedpp)(unsigned long newpp, | |
3c726f8d BH |
61 | unsigned long ea, |
62 | int psize); | |
1da177e4 LT |
63 | long (*hpte_insert)(unsigned long hpte_group, |
64 | unsigned long va, | |
65 | unsigned long prpn, | |
3c726f8d | 66 | unsigned long rflags, |
96e28449 | 67 | unsigned long vflags, |
3c726f8d | 68 | int psize); |
1da177e4 | 69 | long (*hpte_remove)(unsigned long hpte_group); |
61b1a942 BH |
70 | void (*flush_hash_range)(unsigned long number, int local); |
71 | ||
1da177e4 LT |
72 | /* special for kexec, to be called in real mode, linar mapping is |
73 | * destroyed as well */ | |
74 | void (*hpte_clear_all)(void); | |
75 | ||
76 | void (*tce_build)(struct iommu_table * tbl, | |
77 | long index, | |
78 | long npages, | |
79 | unsigned long uaddr, | |
80 | enum dma_data_direction direction); | |
81 | void (*tce_free)(struct iommu_table *tbl, | |
82 | long index, | |
83 | long npages); | |
5f50867b HM |
84 | unsigned long (*tce_get)(struct iommu_table *tbl, |
85 | long index); | |
1da177e4 | 86 | void (*tce_flush)(struct iommu_table *tbl); |
12d04eef BH |
87 | void (*pci_dma_dev_setup)(struct pci_dev *dev); |
88 | void (*pci_dma_bus_setup)(struct pci_bus *bus); | |
e8222502 | 89 | #endif /* CONFIG_PPC64 */ |
1da177e4 | 90 | |
e8222502 | 91 | int (*probe)(void); |
1da177e4 LT |
92 | void (*setup_arch)(void); |
93 | void (*init_early)(void); | |
94 | /* Optional, may be NULL. */ | |
d8699e65 PM |
95 | void (*show_cpuinfo)(struct seq_file *m); |
96 | void (*show_percpuinfo)(struct seq_file *m, int i); | |
1da177e4 LT |
97 | |
98 | void (*init_IRQ)(void); | |
35a84c2f | 99 | unsigned int (*get_irq)(void); |
c5e24354 ME |
100 | #ifdef CONFIG_KEXEC |
101 | void (*kexec_cpu_down)(int crash_shutdown, int secondary); | |
102 | #endif | |
1da177e4 LT |
103 | |
104 | /* PCI stuff */ | |
143a1dec | 105 | /* Called after scanning the bus, before allocating resources */ |
1da177e4 | 106 | void (*pcibios_fixup)(void); |
4267292b | 107 | int (*pci_probe_mode)(struct pci_bus *); |
f90bb153 | 108 | void (*pci_irq_fixup)(struct pci_dev *dev); |
1da177e4 LT |
109 | |
110 | void (*restart)(char *cmd); | |
111 | void (*power_off)(void); | |
112 | void (*halt)(void); | |
113 | void (*panic)(char *str); | |
114 | void (*cpu_die)(void); | |
115 | ||
143a1dec PM |
116 | long (*time_init)(void); /* Optional, may be NULL */ |
117 | ||
1da177e4 LT |
118 | int (*set_rtc_time)(struct rtc_time *); |
119 | void (*get_rtc_time)(struct rtc_time *); | |
143a1dec PM |
120 | unsigned long (*get_boot_time)(void); |
121 | unsigned char (*rtc_read_val)(int addr); | |
122 | void (*rtc_write_val)(int addr, unsigned char val); | |
1da177e4 LT |
123 | |
124 | void (*calibrate_decr)(void); | |
125 | ||
126 | void (*progress)(char *, unsigned short); | |
127 | ||
1da177e4 LT |
128 | /* Interface for platform error logging */ |
129 | void (*log_error)(char *buf, unsigned int err_type, int fatal); | |
130 | ||
35499c01 PM |
131 | unsigned char (*nvram_read_val)(int addr); |
132 | void (*nvram_write_val)(int addr, unsigned char val); | |
1da177e4 LT |
133 | ssize_t (*nvram_write)(char *buf, size_t count, loff_t *index); |
134 | ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index); | |
135 | ssize_t (*nvram_size)(void); | |
143a1dec | 136 | void (*nvram_sync)(void); |
1da177e4 LT |
137 | |
138 | /* Exception handlers */ | |
c902be71 | 139 | int (*system_reset_exception)(struct pt_regs *regs); |
1da177e4 LT |
140 | int (*machine_check_exception)(struct pt_regs *regs); |
141 | ||
142 | /* Motherboard/chipset features. This is a kind of general purpose | |
143 | * hook used to control some machine specific features (like reset | |
144 | * lines, chip power control, etc...). | |
145 | */ | |
146 | long (*feature_call)(unsigned int feature, ...); | |
147 | ||
148 | /* Check availability of legacy devices like i8042 */ | |
149 | int (*check_legacy_ioport)(unsigned int baseport); | |
150 | ||
151 | /* Get legacy PCI/IDE interrupt mapping */ | |
152 | int (*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel); | |
153 | ||
154 | /* Get access protection for /dev/mem */ | |
155 | pgprot_t (*phys_mem_access_prot)(struct file *file, | |
8b150478 | 156 | unsigned long pfn, |
1da177e4 LT |
157 | unsigned long size, |
158 | pgprot_t vma_prot); | |
159 | ||
fd899c0c | 160 | /* Idle loop for this platform, leave empty for default idle loop */ |
143a1dec | 161 | void (*idle_loop)(void); |
180a3362 | 162 | |
a0652fc9 PM |
163 | /* |
164 | * Function for waiting for work with reduced power in idle loop; | |
165 | * called with interrupts disabled. | |
166 | */ | |
167 | void (*power_save)(void); | |
168 | ||
143a1dec PM |
169 | /* Function to enable performance monitor counters for this |
170 | platform, called once per cpu. */ | |
180a3362 | 171 | void (*enable_pmcs)(void); |
143a1dec | 172 | |
76032de8 ME |
173 | /* Set DABR for this platform, leave empty for default implemenation */ |
174 | int (*set_dabr)(unsigned long dabr); | |
175 | ||
143a1dec | 176 | #ifdef CONFIG_PPC32 /* XXX for now */ |
143a1dec PM |
177 | /* A general init function, called by ppc_init in init/main.c. |
178 | May be NULL. */ | |
179 | void (*init)(void); | |
180 | ||
143a1dec PM |
181 | void (*setup_io_mappings)(void); |
182 | ||
183 | void (*early_serial_map)(void); | |
184 | void (*kgdb_map_scc)(void); | |
185 | ||
143a1dec PM |
186 | /* |
187 | * optional PCI "hooks" | |
188 | */ | |
189 | ||
190 | /* Called after PPC generic resource fixup to perform | |
191 | machine specific fixups */ | |
192 | void (*pcibios_fixup_resources)(struct pci_dev *); | |
193 | ||
194 | /* Called for each PCI bus in the system when it's probed */ | |
195 | void (*pcibios_fixup_bus)(struct pci_bus *); | |
196 | ||
197 | /* Called when pci_enable_device() is called (initial=0) or | |
198 | * when a device with no assigned resource is found (initial=1). | |
199 | * Returns 0 to allow assignment/enabling of the device. */ | |
200 | int (*pcibios_enable_device_hook)(struct pci_dev *, int initial); | |
201 | ||
143a1dec PM |
202 | /* Called in indirect_* to avoid touching devices */ |
203 | int (*pci_exclude_device)(unsigned char, unsigned char); | |
204 | ||
205 | /* Called at then very end of pcibios_init() */ | |
206 | void (*pcibios_after_init)(void); | |
207 | ||
3d1229d6 | 208 | #endif /* CONFIG_PPC32 */ |
143a1dec | 209 | |
143a1dec PM |
210 | /* Called to shutdown machine specific hardware not already controlled |
211 | * by other drivers. | |
143a1dec PM |
212 | */ |
213 | void (*machine_shutdown)(void); | |
214 | ||
3d1229d6 | 215 | #ifdef CONFIG_KEXEC |
143a1dec PM |
216 | /* Called to do the minimal shutdown needed to run a kexec'd kernel |
217 | * to run successfully. | |
218 | * XXX Should we move this one out of kexec scope? | |
219 | */ | |
cd0ca2ce | 220 | void (*machine_crash_shutdown)(struct pt_regs *regs); |
143a1dec PM |
221 | |
222 | /* Called to do what every setup is needed on image and the | |
223 | * reboot code buffer. Returns 0 on success. | |
224 | * Provide your own (maybe dummy) implementation if your platform | |
225 | * claims to support kexec. | |
226 | */ | |
227 | int (*machine_kexec_prepare)(struct kimage *image); | |
228 | ||
229 | /* Called to handle any machine specific cleanup on image */ | |
230 | void (*machine_kexec_cleanup)(struct kimage *image); | |
231 | ||
232 | /* Called to perform the _real_ kexec. | |
233 | * Do NOT allocate memory or fail here. We are past the point of | |
234 | * no return. | |
235 | */ | |
236 | void (*machine_kexec)(struct kimage *image); | |
237 | #endif /* CONFIG_KEXEC */ | |
204face4 JM |
238 | |
239 | #ifdef CONFIG_PCI_MSI | |
240 | int (*enable_msi)(struct pci_dev *pdev); | |
241 | void (*disable_msi)(struct pci_dev *pdev); | |
242 | #endif /* CONFIG_PCI_MSI */ | |
1da177e4 LT |
243 | }; |
244 | ||
a0652fc9 PM |
245 | extern void power4_idle(void); |
246 | extern void ppc6xx_idle(void); | |
fd899c0c | 247 | |
e8222502 BH |
248 | /* |
249 | * ppc_md contains a copy of the machine description structure for the | |
250 | * current platform. machine_id contains the initial address where the | |
251 | * description was found during boot. | |
252 | */ | |
1da177e4 | 253 | extern struct machdep_calls ppc_md; |
e8222502 BH |
254 | extern struct machdep_calls *machine_id; |
255 | ||
256 | #define __machine_desc __attribute__ ((__section__ (".machine.desc"))) | |
257 | ||
d0e15bed PM |
258 | #define define_machine(name) \ |
259 | extern struct machdep_calls mach_##name; \ | |
260 | EXPORT_SYMBOL(mach_##name); \ | |
261 | struct machdep_calls mach_##name __machine_desc = | |
262 | ||
e8222502 BH |
263 | #define machine_is(name) \ |
264 | ({ \ | |
265 | extern struct machdep_calls mach_##name \ | |
266 | __attribute__((weak)); \ | |
267 | machine_id == &mach_##name; \ | |
268 | }) | |
269 | ||
270 | extern void probe_machine(void); | |
271 | ||
1da177e4 LT |
272 | extern char cmd_line[COMMAND_LINE_SIZE]; |
273 | ||
274 | #ifdef CONFIG_PPC_PMAC | |
275 | /* | |
276 | * Power macintoshes have either a CUDA, PMU or SMU controlling | |
277 | * system reset, power, NVRAM, RTC. | |
278 | */ | |
279 | typedef enum sys_ctrler_kind { | |
280 | SYS_CTRLER_UNKNOWN = 0, | |
281 | SYS_CTRLER_CUDA = 1, | |
282 | SYS_CTRLER_PMU = 2, | |
283 | SYS_CTRLER_SMU = 3, | |
284 | } sys_ctrler_t; | |
285 | extern sys_ctrler_t sys_ctrler; | |
286 | ||
287 | #endif /* CONFIG_PPC_PMAC */ | |
288 | ||
143a1dec PM |
289 | extern void setup_pci_ptrs(void); |
290 | ||
291 | #ifdef CONFIG_SMP | |
292 | /* Poor default implementations */ | |
293 | extern void __devinit smp_generic_give_timebase(void); | |
294 | extern void __devinit smp_generic_take_timebase(void); | |
295 | #endif /* CONFIG_SMP */ | |
1da177e4 LT |
296 | |
297 | ||
298 | /* Functions to produce codes on the leds. | |
299 | * The SRC code should be unique for the message category and should | |
300 | * be limited to the lower 24 bits (the upper 8 are set by these funcs), | |
301 | * and (for boot & dump) should be sorted numerically in the order | |
302 | * the events occur. | |
303 | */ | |
304 | /* Print a boot progress message. */ | |
305 | void ppc64_boot_msg(unsigned int src, const char *msg); | |
306 | /* Print a termination message (print only -- does not stop the kernel) */ | |
307 | void ppc64_terminate_msg(unsigned int src, const char *msg); | |
1da177e4 LT |
308 | |
309 | static inline void log_error(char *buf, unsigned int err_type, int fatal) | |
310 | { | |
311 | if (ppc_md.log_error) | |
312 | ppc_md.log_error(buf, err_type, fatal); | |
313 | } | |
314 | ||
1da177e4 | 315 | #endif /* __KERNEL__ */ |
b41fc4f8 | 316 | #endif /* _ASM_POWERPC_MACHDEP_H */ |