powerpc/mm: Fix build error with FLATMEM book3s64 config
[linux-2.6-block.git] / arch / powerpc / include / asm / machdep.h
CommitLineData
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>
93087948 15#include <linux/export.h>
1da177e4
LT
16
17#include <asm/setup.h>
18
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19/* We export this macro for external modules like Alsa to know if
20 * ppc_md.feature_call is implemented or not
21 */
22#define CONFIG_PPC_HAS_FEATURE_CALLS
23
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LT
24struct pt_regs;
25struct pci_bus;
26struct device_node;
27struct iommu_table;
28struct rtc_time;
29struct file;
4c9d2800 30struct pci_controller;
3d1229d6 31struct kimage;
d82fb31a 32struct pci_host_bridge;
1da177e4 33
1da177e4 34struct machdep_calls {
e8222502 35 char *name;
143a1dec 36#ifdef CONFIG_PPC64
68a64357 37 void __iomem * (*ioremap)(phys_addr_t addr, unsigned long size,
c766ee72 38 pgprot_t prot, void *caller);
68a64357 39 void (*iounmap)(volatile void __iomem *token);
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JB
40
41#ifdef CONFIG_PM
42 void (*iommu_save)(void);
43 void (*iommu_restore)(void);
44#endif
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AB
45#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
46 unsigned long (*memory_block_size)(void);
47#endif
e8222502 48#endif /* CONFIG_PPC64 */
1da177e4 49
11ddce15 50 void (*dma_set_mask)(struct device *dev, u64 dma_mask);
5b6e9ff6 51
e8222502 52 int (*probe)(void);
38db7e74 53 void (*setup_arch)(void); /* Optional, may be NULL */
1da177e4 54 /* Optional, may be NULL. */
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55 void (*show_cpuinfo)(struct seq_file *m);
56 void (*show_percpuinfo)(struct seq_file *m, int i);
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57 /* Returns the current operating frequency of "cpu" in Hz */
58 unsigned long (*get_proc_freq)(unsigned int cpu);
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LT
59
60 void (*init_IRQ)(void);
9b647a30 61
ef24ba70 62 /* Return an irq, or 0 to indicate there are none pending. */
35a84c2f 63 unsigned int (*get_irq)(void);
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LT
64
65 /* PCI stuff */
6ec73343 66 /* Called after allocating resources */
1da177e4 67 void (*pcibios_fixup)(void);
f90bb153 68 void (*pci_irq_fixup)(struct pci_dev *dev);
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KSS
69 int (*pcibios_root_bridge_prepare)(struct pci_host_bridge
70 *bridge);
1da177e4 71
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BH
72 /* To setup PHBs when using automatic OF platform driver for PCI */
73 int (*pci_setup_phb)(struct pci_controller *host);
74
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DA
75 void __noreturn (*restart)(char *cmd);
76 void __noreturn (*halt)(void);
ab9dbf77 77 void (*panic)(char *str);
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LT
78 void (*cpu_die)(void);
79
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80 long (*time_init)(void); /* Optional, may be NULL */
81
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LT
82 int (*set_rtc_time)(struct rtc_time *);
83 void (*get_rtc_time)(struct rtc_time *);
5bfd6435 84 time64_t (*get_boot_time)(void);
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PM
85 unsigned char (*rtc_read_val)(int addr);
86 void (*rtc_write_val)(int addr, unsigned char val);
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LT
87
88 void (*calibrate_decr)(void);
89
90 void (*progress)(char *, unsigned short);
91
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LT
92 /* Interface for platform error logging */
93 void (*log_error)(char *buf, unsigned int err_type, int fatal);
94
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95 unsigned char (*nvram_read_val)(int addr);
96 void (*nvram_write_val)(int addr, unsigned char val);
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LT
97 ssize_t (*nvram_write)(char *buf, size_t count, loff_t *index);
98 ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index);
99 ssize_t (*nvram_size)(void);
143a1dec 100 void (*nvram_sync)(void);
1da177e4
LT
101
102 /* Exception handlers */
c902be71 103 int (*system_reset_exception)(struct pt_regs *regs);
1da177e4 104 int (*machine_check_exception)(struct pt_regs *regs);
0869b6fd
MS
105 int (*handle_hmi_exception)(struct pt_regs *regs);
106
107 /* Early exception handlers called in realmode */
108 int (*hmi_exception_early)(struct pt_regs *regs);
a43c1590 109 long (*machine_check_early)(struct pt_regs *regs);
1da177e4 110
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MS
111 /* Called during machine check exception to retrive fixup address. */
112 bool (*mce_check_early_recovery)(struct pt_regs *regs);
113
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114 /* Motherboard/chipset features. This is a kind of general purpose
115 * hook used to control some machine specific features (like reset
116 * lines, chip power control, etc...).
117 */
118 long (*feature_call)(unsigned int feature, ...);
119
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LT
120 /* Get legacy PCI/IDE interrupt mapping */
121 int (*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel);
122
123 /* Get access protection for /dev/mem */
124 pgprot_t (*phys_mem_access_prot)(struct file *file,
8b150478 125 unsigned long pfn,
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LT
126 unsigned long size,
127 pgprot_t vma_prot);
128
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PM
129 /*
130 * Function for waiting for work with reduced power in idle loop;
131 * called with interrupts disabled.
132 */
133 void (*power_save)(void);
134
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PM
135 /* Function to enable performance monitor counters for this
136 platform, called once per cpu. */
180a3362 137 void (*enable_pmcs)(void);
143a1dec 138
446957ba 139 /* Set DABR for this platform, leave empty for default implementation */
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MN
140 int (*set_dabr)(unsigned long dabr,
141 unsigned long dabrx);
76032de8 142
446957ba 143 /* Set DAWR for this platform, leave empty for default implementation */
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MN
144 int (*set_dawr)(unsigned long dawr,
145 unsigned long dawrx);
146
143a1dec 147#ifdef CONFIG_PPC32 /* XXX for now */
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PM
148 /* A general init function, called by ppc_init in init/main.c.
149 May be NULL. */
150 void (*init)(void);
151
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152 void (*kgdb_map_scc)(void);
153
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154 /*
155 * optional PCI "hooks"
156 */
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157 /* Called at then very end of pcibios_init() */
158 void (*pcibios_after_init)(void);
159
3d1229d6 160#endif /* CONFIG_PPC32 */
143a1dec 161
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KG
162 /* Called in indirect_* to avoid touching devices */
163 int (*pci_exclude_device)(struct pci_controller *, unsigned char, unsigned char);
164
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BH
165 /* Called after PPC generic resource fixup to perform
166 machine specific fixups */
167 void (*pcibios_fixup_resources)(struct pci_dev *);
168
169 /* Called for each PCI bus in the system when it's probed */
170 void (*pcibios_fixup_bus)(struct pci_bus *);
171
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BH
172 /* Called after scan and before resource survey */
173 void (*pcibios_fixup_phb)(struct pci_controller *hose);
174
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BL
175 /*
176 * Called after device has been added to bus and
177 * before sysfs has been created.
178 */
179 void (*pcibios_bus_add_device)(struct pci_dev *pdev);
180
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YX
181 resource_size_t (*pcibios_default_alignment)(void);
182
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WY
183#ifdef CONFIG_PCI_IOV
184 void (*pcibios_fixup_sriov)(struct pci_dev *pdev);
5350ab3f 185 resource_size_t (*pcibios_iov_resource_alignment)(struct pci_dev *, int resno);
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BL
186 int (*pcibios_sriov_enable)(struct pci_dev *pdev, u16 num_vfs);
187 int (*pcibios_sriov_disable)(struct pci_dev *pdev);
6e628c7d
WY
188#endif /* CONFIG_PCI_IOV */
189
143a1dec
PM
190 /* Called to shutdown machine specific hardware not already controlled
191 * by other drivers.
143a1dec
PM
192 */
193 void (*machine_shutdown)(void);
194
da665885 195#ifdef CONFIG_KEXEC_CORE
50266a1f
AB
196 void (*kexec_cpu_down)(int crash_shutdown, int secondary);
197
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PM
198 /* Called to do what every setup is needed on image and the
199 * reboot code buffer. Returns 0 on success.
200 * Provide your own (maybe dummy) implementation if your platform
201 * claims to support kexec.
202 */
203 int (*machine_kexec_prepare)(struct kimage *image);
357574c4
AB
204
205 /* Called to perform the _real_ kexec.
206 * Do NOT allocate memory or fail here. We are past the point of
207 * no return.
208 */
209 void (*machine_kexec)(struct kimage *image);
da665885 210#endif /* CONFIG_KEXEC_CORE */
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SW
211
212#ifdef CONFIG_SUSPEND
213 /* These are called to disable and enable, respectively, IRQs when
214 * entering a suspend state. If NULL, then the generic versions
215 * will be called. The generic versions disable/enable the
216 * decrementer along with interrupts.
217 */
218 void (*suspend_disable_irqs)(void);
219 void (*suspend_enable_irqs)(void);
220#endif
32d8ad4e 221 int (*suspend_disable_cpu)(void);
12633e80
NF
222
223#ifdef CONFIG_ARCH_CPU_PROBE_RELEASE
224 ssize_t (*cpu_probe)(const char *, size_t);
225 ssize_t (*cpu_release)(const char *, size_t);
226#endif
a4da0d50
ME
227
228#ifdef CONFIG_ARCH_RANDOM
01c9348c 229 int (*get_random_seed)(unsigned long *v);
a4da0d50 230#endif
1da177e4
LT
231};
232
fc4033b2 233extern void e500_idle(void);
a0652fc9 234extern void power4_idle(void);
948cf67c 235extern void power7_idle(void);
2201f994 236extern void power9_idle(void);
a0652fc9 237extern void ppc6xx_idle(void);
34d97e07 238extern void book3e_idle(void);
fd899c0c 239
e8222502
BH
240/*
241 * ppc_md contains a copy of the machine description structure for the
242 * current platform. machine_id contains the initial address where the
243 * description was found during boot.
244 */
1da177e4 245extern struct machdep_calls ppc_md;
e8222502
BH
246extern struct machdep_calls *machine_id;
247
248#define __machine_desc __attribute__ ((__section__ (".machine.desc")))
249
d0e15bed
PM
250#define define_machine(name) \
251 extern struct machdep_calls mach_##name; \
252 EXPORT_SYMBOL(mach_##name); \
253 struct machdep_calls mach_##name __machine_desc =
254
e8222502
BH
255#define machine_is(name) \
256 ({ \
257 extern struct machdep_calls mach_##name \
258 __attribute__((weak)); \
259 machine_id == &mach_##name; \
260 })
261
262extern void probe_machine(void);
263
1da177e4
LT
264#ifdef CONFIG_PPC_PMAC
265/*
266 * Power macintoshes have either a CUDA, PMU or SMU controlling
267 * system reset, power, NVRAM, RTC.
268 */
269typedef enum sys_ctrler_kind {
270 SYS_CTRLER_UNKNOWN = 0,
271 SYS_CTRLER_CUDA = 1,
272 SYS_CTRLER_PMU = 2,
273 SYS_CTRLER_SMU = 3,
274} sys_ctrler_t;
275extern sys_ctrler_t sys_ctrler;
276
277#endif /* CONFIG_PPC_PMAC */
278
1da177e4
LT
279static inline void log_error(char *buf, unsigned int err_type, int fatal)
280{
281 if (ppc_md.log_error)
282 ppc_md.log_error(buf, err_type, fatal);
283}
284
7929d407 285#define __define_machine_initcall(mach, fn, id) \
800d68c3
GL
286 static int __init __machine_initcall_##mach##_##fn(void) { \
287 if (machine_is(mach)) return fn(); \
288 return 0; \
289 } \
7929d407
ML
290 __define_initcall(__machine_initcall_##mach##_##fn, id);
291
8d3c941e 292#define machine_early_initcall(mach, fn) __define_machine_initcall(mach, fn, early)
7929d407
ML
293#define machine_core_initcall(mach, fn) __define_machine_initcall(mach, fn, 1)
294#define machine_core_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 1s)
295#define machine_postcore_initcall(mach, fn) __define_machine_initcall(mach, fn, 2)
296#define machine_postcore_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 2s)
297#define machine_arch_initcall(mach, fn) __define_machine_initcall(mach, fn, 3)
298#define machine_arch_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 3s)
299#define machine_subsys_initcall(mach, fn) __define_machine_initcall(mach, fn, 4)
300#define machine_subsys_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 4s)
301#define machine_fs_initcall(mach, fn) __define_machine_initcall(mach, fn, 5)
302#define machine_fs_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 5s)
303#define machine_rootfs_initcall(mach, fn) __define_machine_initcall(mach, fn, rootfs)
304#define machine_device_initcall(mach, fn) __define_machine_initcall(mach, fn, 6)
305#define machine_device_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 6s)
306#define machine_late_initcall(mach, fn) __define_machine_initcall(mach, fn, 7)
307#define machine_late_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 7s)
800d68c3 308
1da177e4 309#endif /* __KERNEL__ */
b41fc4f8 310#endif /* _ASM_POWERPC_MACHDEP_H */