1#ifndef _ASM_POWERPC_MACHDEP_H
2#define _ASM_POWERPC_MACHDEP_H
3#ifdef __KERNEL__
4
5
6
7
8
9
10
11
12#include <linux/seq_file.h>
13#include <linux/init.h>
14#include <linux/dma-mapping.h>
15#include <linux/export.h>
16
17#include <asm/setup.h>
18
19
20
21
22#define CONFIG_PPC_HAS_FEATURE_CALLS
23
24struct pt_regs;
25struct pci_bus;
26struct device_node;
27struct iommu_table;
28struct rtc_time;
29struct file;
30struct pci_controller;
31struct kimage;
32struct pci_host_bridge;
33
34struct machdep_calls {
35 char *name;
36#ifdef CONFIG_PPC64
37 void __iomem * (*ioremap)(phys_addr_t addr, unsigned long size,
38 pgprot_t prot, void *caller);
39 void (*iounmap)(volatile void __iomem *token);
40
41#ifdef CONFIG_PM
42 void (*iommu_save)(void);
43 void (*iommu_restore)(void);
44#endif
45#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
46 unsigned long (*memory_block_size)(void);
47#endif
48#endif
49
50
51 int (*dma_set_mask)(struct device *dev, u64 dma_mask);
52 u64 (*dma_get_required_mask)(struct device *dev);
53
54 int (*probe)(void);
55 void (*setup_arch)(void);
56
57 void (*show_cpuinfo)(struct seq_file *m);
58 void (*show_percpuinfo)(struct seq_file *m, int i);
59
60 unsigned long (*get_proc_freq)(unsigned int cpu);
61
62 void (*init_IRQ)(void);
63
64
65 unsigned int (*get_irq)(void);
66
67
68
69 void (*pcibios_fixup)(void);
70 void (*pci_irq_fixup)(struct pci_dev *dev);
71 int (*pcibios_root_bridge_prepare)(struct pci_host_bridge
72 *bridge);
73
74
75 int (*pci_setup_phb)(struct pci_controller *host);
76
77 void __noreturn (*restart)(char *cmd);
78 void __noreturn (*halt)(void);
79 void (*panic)(char *str);
80 void (*cpu_die)(void);
81
82 long (*time_init)(void);
83
84 int (*set_rtc_time)(struct rtc_time *);
85 void (*get_rtc_time)(struct rtc_time *);
86 time64_t (*get_boot_time)(void);
87 unsigned char (*rtc_read_val)(int addr);
88 void (*rtc_write_val)(int addr, unsigned char val);
89
90 void (*calibrate_decr)(void);
91
92 void (*progress)(char *, unsigned short);
93
94
95 void (*log_error)(char *buf, unsigned int err_type, int fatal);
96
97 unsigned char (*nvram_read_val)(int addr);
98 void (*nvram_write_val)(int addr, unsigned char val);
99 ssize_t (*nvram_write)(char *buf, size_t count, loff_t *index);
100 ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index);
101 ssize_t (*nvram_size)(void);
102 void (*nvram_sync)(void);
103
104
105 int (*system_reset_exception)(struct pt_regs *regs);
106 int (*machine_check_exception)(struct pt_regs *regs);
107 int (*handle_hmi_exception)(struct pt_regs *regs);
108
109
110 int (*hmi_exception_early)(struct pt_regs *regs);
111 long (*machine_check_early)(struct pt_regs *regs);
112
113
114 bool (*mce_check_early_recovery)(struct pt_regs *regs);
115
116
117
118
119
120 long (*feature_call)(unsigned int feature, ...);
121
122
123 int (*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel);
124
125
126 pgprot_t (*phys_mem_access_prot)(struct file *file,
127 unsigned long pfn,
128 unsigned long size,
129 pgprot_t vma_prot);
130
131
132
133
134
135 void (*power_save)(void);
136
137
138
139 void (*enable_pmcs)(void);
140
141
142 int (*set_dabr)(unsigned long dabr,
143 unsigned long dabrx);
144
145
146 int (*set_dawr)(unsigned long dawr,
147 unsigned long dawrx);
148
149#ifdef CONFIG_PPC32
150
151
152 void (*init)(void);
153
154 void (*kgdb_map_scc)(void);
155
156
157
158
159
160 void (*pcibios_after_init)(void);
161
162#endif
163
164
165 int (*pci_exclude_device)(struct pci_controller *, unsigned char, unsigned char);
166
167
168
169 void (*pcibios_fixup_resources)(struct pci_dev *);
170
171
172 void (*pcibios_fixup_bus)(struct pci_bus *);
173
174
175 void (*pcibios_fixup_phb)(struct pci_controller *hose);
176
177
178
179
180
181 void (*pcibios_bus_add_device)(struct pci_dev *pdev);
182
183 resource_size_t (*pcibios_default_alignment)(void);
184
185#ifdef CONFIG_PCI_IOV
186 void (*pcibios_fixup_sriov)(struct pci_dev *pdev);
187 resource_size_t (*pcibios_iov_resource_alignment)(struct pci_dev *, int resno);
188 int (*pcibios_sriov_enable)(struct pci_dev *pdev, u16 num_vfs);
189 int (*pcibios_sriov_disable)(struct pci_dev *pdev);
190#endif
191
192
193
194
195 void (*machine_shutdown)(void);
196
197#ifdef CONFIG_KEXEC_CORE
198 void (*kexec_cpu_down)(int crash_shutdown, int secondary);
199
200
201
202
203
204
205 int (*machine_kexec_prepare)(struct kimage *image);
206
207
208
209
210
211 void (*machine_kexec)(struct kimage *image);
212#endif
213
214#ifdef CONFIG_SUSPEND
215
216
217
218
219
220 void (*suspend_disable_irqs)(void);
221 void (*suspend_enable_irqs)(void);
222#endif
223 int (*suspend_disable_cpu)(void);
224
225#ifdef CONFIG_ARCH_CPU_PROBE_RELEASE
226 ssize_t (*cpu_probe)(const char *, size_t);
227 ssize_t (*cpu_release)(const char *, size_t);
228#endif
229
230#ifdef CONFIG_ARCH_RANDOM
231 int (*get_random_seed)(unsigned long *v);
232#endif
233};
234
235extern void e500_idle(void);
236extern void power4_idle(void);
237extern void power7_idle(void);
238extern void power9_idle(void);
239extern void ppc6xx_idle(void);
240extern void book3e_idle(void);
241
242
243
244
245
246
247extern struct machdep_calls ppc_md;
248extern struct machdep_calls *machine_id;
249
250#define __machine_desc __attribute__ ((__section__ (".machine.desc")))
251
252#define define_machine(name) \
253 extern struct machdep_calls mach_##name; \
254 EXPORT_SYMBOL(mach_##name); \
255 struct machdep_calls mach_##name __machine_desc =
256
257#define machine_is(name) \
258 ({ \
259 extern struct machdep_calls mach_##name \
260 __attribute__((weak)); \
261 machine_id == &mach_##name; \
262 })
263
264extern void probe_machine(void);
265
266#ifdef CONFIG_PPC_PMAC
267
268
269
270
271typedef enum sys_ctrler_kind {
272 SYS_CTRLER_UNKNOWN = 0,
273 SYS_CTRLER_CUDA = 1,
274 SYS_CTRLER_PMU = 2,
275 SYS_CTRLER_SMU = 3,
276} sys_ctrler_t;
277extern sys_ctrler_t sys_ctrler;
278
279#endif
280
281static inline void log_error(char *buf, unsigned int err_type, int fatal)
282{
283 if (ppc_md.log_error)
284 ppc_md.log_error(buf, err_type, fatal);
285}
286
287#define __define_machine_initcall(mach, fn, id) \
288 static int __init __machine_initcall_##mach##_##fn(void) { \
289 if (machine_is(mach)) return fn(); \
290 return 0; \
291 } \
292 __define_initcall(__machine_initcall_##mach##_##fn, id);
293
294#define machine_early_initcall(mach, fn) __define_machine_initcall(mach, fn, early)
295#define machine_core_initcall(mach, fn) __define_machine_initcall(mach, fn, 1)
296#define machine_core_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 1s)
297#define machine_postcore_initcall(mach, fn) __define_machine_initcall(mach, fn, 2)
298#define machine_postcore_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 2s)
299#define machine_arch_initcall(mach, fn) __define_machine_initcall(mach, fn, 3)
300#define machine_arch_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 3s)
301#define machine_subsys_initcall(mach, fn) __define_machine_initcall(mach, fn, 4)
302#define machine_subsys_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 4s)
303#define machine_fs_initcall(mach, fn) __define_machine_initcall(mach, fn, 5)
304#define machine_fs_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 5s)
305#define machine_rootfs_initcall(mach, fn) __define_machine_initcall(mach, fn, rootfs)
306#define machine_device_initcall(mach, fn) __define_machine_initcall(mach, fn, 6)
307#define machine_device_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 6s)
308#define machine_late_initcall(mach, fn) __define_machine_initcall(mach, fn, 7)
309#define machine_late_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 7s)
310
311#endif
312#endif
313