Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
[linux/fpc-iii.git] / arch / powerpc / include / asm / machdep.h
blobad3025d0880b1c709d073e9d42f55a71a9a8159a
1 #ifndef _ASM_POWERPC_MACHDEP_H
2 #define _ASM_POWERPC_MACHDEP_H
3 #ifdef __KERNEL__
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.
12 #include <linux/seq_file.h>
13 #include <linux/init.h>
14 #include <linux/dma-mapping.h>
15 #include <linux/export.h>
17 #include <asm/setup.h>
19 /* We export this macro for external modules like Alsa to know if
20 * ppc_md.feature_call is implemented or not
22 #define CONFIG_PPC_HAS_FEATURE_CALLS
24 struct pt_regs;
25 struct pci_bus;
26 struct device_node;
27 struct iommu_table;
28 struct rtc_time;
29 struct file;
30 struct pci_controller;
31 struct kimage;
32 struct pci_host_bridge;
34 struct machdep_calls {
35 char *name;
36 #ifdef CONFIG_PPC64
37 void (*hpte_invalidate)(unsigned long slot,
38 unsigned long vpn,
39 int bpsize, int apsize,
40 int ssize, int local);
41 long (*hpte_updatepp)(unsigned long slot,
42 unsigned long newpp,
43 unsigned long vpn,
44 int bpsize, int apsize,
45 int ssize, int local);
46 void (*hpte_updateboltedpp)(unsigned long newpp,
47 unsigned long ea,
48 int psize, int ssize);
49 long (*hpte_insert)(unsigned long hpte_group,
50 unsigned long vpn,
51 unsigned long prpn,
52 unsigned long rflags,
53 unsigned long vflags,
54 int psize, int apsize,
55 int ssize);
56 long (*hpte_remove)(unsigned long hpte_group);
57 void (*hpte_removebolted)(unsigned long ea,
58 int psize, int ssize);
59 void (*flush_hash_range)(unsigned long number, int local);
60 void (*hugepage_invalidate)(struct mm_struct *mm,
61 unsigned char *hpte_slot_array,
62 unsigned long addr, int psize);
64 /* special for kexec, to be called in real mode, linear mapping is
65 * destroyed as well */
66 void (*hpte_clear_all)(void);
68 int (*tce_build)(struct iommu_table *tbl,
69 long index,
70 long npages,
71 unsigned long uaddr,
72 enum dma_data_direction direction,
73 struct dma_attrs *attrs);
74 void (*tce_free)(struct iommu_table *tbl,
75 long index,
76 long npages);
77 unsigned long (*tce_get)(struct iommu_table *tbl,
78 long index);
79 void (*tce_flush)(struct iommu_table *tbl);
81 /* _rm versions are for real mode use only */
82 int (*tce_build_rm)(struct iommu_table *tbl,
83 long index,
84 long npages,
85 unsigned long uaddr,
86 enum dma_data_direction direction,
87 struct dma_attrs *attrs);
88 void (*tce_free_rm)(struct iommu_table *tbl,
89 long index,
90 long npages);
91 void (*tce_flush_rm)(struct iommu_table *tbl);
93 void __iomem * (*ioremap)(phys_addr_t addr, unsigned long size,
94 unsigned long flags, void *caller);
95 void (*iounmap)(volatile void __iomem *token);
97 #ifdef CONFIG_PM
98 void (*iommu_save)(void);
99 void (*iommu_restore)(void);
100 #endif
101 #endif /* CONFIG_PPC64 */
103 void (*pci_dma_dev_setup)(struct pci_dev *dev);
104 void (*pci_dma_bus_setup)(struct pci_bus *bus);
106 /* Platform set_dma_mask and dma_get_required_mask overrides */
107 int (*dma_set_mask)(struct device *dev, u64 dma_mask);
108 u64 (*dma_get_required_mask)(struct device *dev);
110 int (*probe)(void);
111 void (*setup_arch)(void); /* Optional, may be NULL */
112 void (*init_early)(void);
113 /* Optional, may be NULL. */
114 void (*show_cpuinfo)(struct seq_file *m);
115 void (*show_percpuinfo)(struct seq_file *m, int i);
117 void (*init_IRQ)(void);
119 /* Return an irq, or NO_IRQ to indicate there are none pending. */
120 unsigned int (*get_irq)(void);
122 /* PCI stuff */
123 /* Called after scanning the bus, before allocating resources */
124 void (*pcibios_fixup)(void);
125 int (*pci_probe_mode)(struct pci_bus *);
126 void (*pci_irq_fixup)(struct pci_dev *dev);
127 int (*pcibios_root_bridge_prepare)(struct pci_host_bridge
128 *bridge);
130 /* To setup PHBs when using automatic OF platform driver for PCI */
131 int (*pci_setup_phb)(struct pci_controller *host);
133 #ifdef CONFIG_PCI_MSI
134 int (*msi_check_device)(struct pci_dev* dev,
135 int nvec, int type);
136 int (*setup_msi_irqs)(struct pci_dev *dev,
137 int nvec, int type);
138 void (*teardown_msi_irqs)(struct pci_dev *dev);
139 #endif
141 void (*restart)(char *cmd);
142 void (*power_off)(void);
143 void (*halt)(void);
144 void (*panic)(char *str);
145 void (*cpu_die)(void);
147 long (*time_init)(void); /* Optional, may be NULL */
149 int (*set_rtc_time)(struct rtc_time *);
150 void (*get_rtc_time)(struct rtc_time *);
151 unsigned long (*get_boot_time)(void);
152 unsigned char (*rtc_read_val)(int addr);
153 void (*rtc_write_val)(int addr, unsigned char val);
155 void (*calibrate_decr)(void);
157 void (*progress)(char *, unsigned short);
159 /* Interface for platform error logging */
160 void (*log_error)(char *buf, unsigned int err_type, int fatal);
162 unsigned char (*nvram_read_val)(int addr);
163 void (*nvram_write_val)(int addr, unsigned char val);
164 ssize_t (*nvram_write)(char *buf, size_t count, loff_t *index);
165 ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index);
166 ssize_t (*nvram_size)(void);
167 void (*nvram_sync)(void);
169 /* Exception handlers */
170 int (*system_reset_exception)(struct pt_regs *regs);
171 int (*machine_check_exception)(struct pt_regs *regs);
173 /* Motherboard/chipset features. This is a kind of general purpose
174 * hook used to control some machine specific features (like reset
175 * lines, chip power control, etc...).
177 long (*feature_call)(unsigned int feature, ...);
179 /* Get legacy PCI/IDE interrupt mapping */
180 int (*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel);
182 /* Get access protection for /dev/mem */
183 pgprot_t (*phys_mem_access_prot)(struct file *file,
184 unsigned long pfn,
185 unsigned long size,
186 pgprot_t vma_prot);
189 * Function for waiting for work with reduced power in idle loop;
190 * called with interrupts disabled.
192 void (*power_save)(void);
194 /* Function to enable performance monitor counters for this
195 platform, called once per cpu. */
196 void (*enable_pmcs)(void);
198 /* Set DABR for this platform, leave empty for default implemenation */
199 int (*set_dabr)(unsigned long dabr,
200 unsigned long dabrx);
202 /* Set DAWR for this platform, leave empty for default implemenation */
203 int (*set_dawr)(unsigned long dawr,
204 unsigned long dawrx);
206 #ifdef CONFIG_PPC32 /* XXX for now */
207 /* A general init function, called by ppc_init in init/main.c.
208 May be NULL. */
209 void (*init)(void);
211 void (*kgdb_map_scc)(void);
214 * optional PCI "hooks"
216 /* Called at then very end of pcibios_init() */
217 void (*pcibios_after_init)(void);
219 #endif /* CONFIG_PPC32 */
221 /* Called in indirect_* to avoid touching devices */
222 int (*pci_exclude_device)(struct pci_controller *, unsigned char, unsigned char);
224 /* Called after PPC generic resource fixup to perform
225 machine specific fixups */
226 void (*pcibios_fixup_resources)(struct pci_dev *);
228 /* Called for each PCI bus in the system when it's probed */
229 void (*pcibios_fixup_bus)(struct pci_bus *);
231 /* Called when pci_enable_device() is called. Returns 0 to
232 * allow assignment/enabling of the device. */
233 int (*pcibios_enable_device_hook)(struct pci_dev *);
235 /* Called after scan and before resource survey */
236 void (*pcibios_fixup_phb)(struct pci_controller *hose);
238 /* Called during PCI resource reassignment */
239 resource_size_t (*pcibios_window_alignment)(struct pci_bus *, unsigned long type);
241 /* Called to shutdown machine specific hardware not already controlled
242 * by other drivers.
244 void (*machine_shutdown)(void);
246 #ifdef CONFIG_KEXEC
247 void (*kexec_cpu_down)(int crash_shutdown, int secondary);
249 /* Called to do what every setup is needed on image and the
250 * reboot code buffer. Returns 0 on success.
251 * Provide your own (maybe dummy) implementation if your platform
252 * claims to support kexec.
254 int (*machine_kexec_prepare)(struct kimage *image);
256 /* Called to perform the _real_ kexec.
257 * Do NOT allocate memory or fail here. We are past the point of
258 * no return.
260 void (*machine_kexec)(struct kimage *image);
261 #endif /* CONFIG_KEXEC */
263 #ifdef CONFIG_SUSPEND
264 /* These are called to disable and enable, respectively, IRQs when
265 * entering a suspend state. If NULL, then the generic versions
266 * will be called. The generic versions disable/enable the
267 * decrementer along with interrupts.
269 void (*suspend_disable_irqs)(void);
270 void (*suspend_enable_irqs)(void);
271 #endif
272 int (*suspend_disable_cpu)(void);
274 #ifdef CONFIG_ARCH_CPU_PROBE_RELEASE
275 ssize_t (*cpu_probe)(const char *, size_t);
276 ssize_t (*cpu_release)(const char *, size_t);
277 #endif
279 #ifdef CONFIG_ARCH_RANDOM
280 int (*get_random_long)(unsigned long *v);
281 #endif
284 extern void e500_idle(void);
285 extern void power4_idle(void);
286 extern void power7_idle(void);
287 extern void ppc6xx_idle(void);
288 extern void book3e_idle(void);
291 * ppc_md contains a copy of the machine description structure for the
292 * current platform. machine_id contains the initial address where the
293 * description was found during boot.
295 extern struct machdep_calls ppc_md;
296 extern struct machdep_calls *machine_id;
298 #define __machine_desc __attribute__ ((__section__ (".machine.desc")))
300 #define define_machine(name) \
301 extern struct machdep_calls mach_##name; \
302 EXPORT_SYMBOL(mach_##name); \
303 struct machdep_calls mach_##name __machine_desc =
305 #define machine_is(name) \
306 ({ \
307 extern struct machdep_calls mach_##name \
308 __attribute__((weak)); \
309 machine_id == &mach_##name; \
312 extern void probe_machine(void);
314 extern char cmd_line[COMMAND_LINE_SIZE];
316 #ifdef CONFIG_PPC_PMAC
318 * Power macintoshes have either a CUDA, PMU or SMU controlling
319 * system reset, power, NVRAM, RTC.
321 typedef enum sys_ctrler_kind {
322 SYS_CTRLER_UNKNOWN = 0,
323 SYS_CTRLER_CUDA = 1,
324 SYS_CTRLER_PMU = 2,
325 SYS_CTRLER_SMU = 3,
326 } sys_ctrler_t;
327 extern sys_ctrler_t sys_ctrler;
329 #endif /* CONFIG_PPC_PMAC */
332 /* Functions to produce codes on the leds.
333 * The SRC code should be unique for the message category and should
334 * be limited to the lower 24 bits (the upper 8 are set by these funcs),
335 * and (for boot & dump) should be sorted numerically in the order
336 * the events occur.
338 /* Print a boot progress message. */
339 void ppc64_boot_msg(unsigned int src, const char *msg);
341 static inline void log_error(char *buf, unsigned int err_type, int fatal)
343 if (ppc_md.log_error)
344 ppc_md.log_error(buf, err_type, fatal);
347 #define __define_machine_initcall(mach, fn, id) \
348 static int __init __machine_initcall_##mach##_##fn(void) { \
349 if (machine_is(mach)) return fn(); \
350 return 0; \
352 __define_initcall(__machine_initcall_##mach##_##fn, id);
354 #define machine_core_initcall(mach, fn) __define_machine_initcall(mach, fn, 1)
355 #define machine_core_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 1s)
356 #define machine_postcore_initcall(mach, fn) __define_machine_initcall(mach, fn, 2)
357 #define machine_postcore_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 2s)
358 #define machine_arch_initcall(mach, fn) __define_machine_initcall(mach, fn, 3)
359 #define machine_arch_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 3s)
360 #define machine_subsys_initcall(mach, fn) __define_machine_initcall(mach, fn, 4)
361 #define machine_subsys_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 4s)
362 #define machine_fs_initcall(mach, fn) __define_machine_initcall(mach, fn, 5)
363 #define machine_fs_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 5s)
364 #define machine_rootfs_initcall(mach, fn) __define_machine_initcall(mach, fn, rootfs)
365 #define machine_device_initcall(mach, fn) __define_machine_initcall(mach, fn, 6)
366 #define machine_device_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 6s)
367 #define machine_late_initcall(mach, fn) __define_machine_initcall(mach, fn, 7)
368 #define machine_late_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 7s)
370 #endif /* __KERNEL__ */
371 #endif /* _ASM_POWERPC_MACHDEP_H */