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/arch/powerpc/include/asm/machdep.h

https://github.com/aicjofs/android_kernel_lge_v500_20d_f2fs
C Header | 343 lines | 201 code | 63 blank | 79 comment | 3 complexity | b6727a11c4640d83459448edebddd10c MD5 | raw file
  1#ifndef _ASM_POWERPC_MACHDEP_H
  2#define _ASM_POWERPC_MACHDEP_H
  3#ifdef __KERNEL__
  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
 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/* 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
 24struct pt_regs;
 25struct pci_bus;	
 26struct device_node;
 27struct iommu_table;
 28struct rtc_time;
 29struct file;
 30struct pci_controller;
 31struct kimage;
 32
 33struct machdep_calls {
 34	char		*name;
 35#ifdef CONFIG_PPC64
 36	void            (*hpte_invalidate)(unsigned long slot,
 37					   unsigned long va,
 38					   int psize, int ssize,
 39					   int local);
 40	long		(*hpte_updatepp)(unsigned long slot, 
 41					 unsigned long newpp, 
 42					 unsigned long va,
 43					 int psize, int ssize,
 44					 int local);
 45	void            (*hpte_updateboltedpp)(unsigned long newpp, 
 46					       unsigned long ea,
 47					       int psize, int ssize);
 48	long		(*hpte_insert)(unsigned long hpte_group,
 49				       unsigned long va,
 50				       unsigned long prpn,
 51				       unsigned long rflags,
 52				       unsigned long vflags,
 53				       int psize, int ssize);
 54	long		(*hpte_remove)(unsigned long hpte_group);
 55	void            (*hpte_removebolted)(unsigned long ea,
 56					     int psize, int ssize);
 57	void		(*flush_hash_range)(unsigned long number, int local);
 58
 59	/* special for kexec, to be called in real mode, linear mapping is
 60	 * destroyed as well */
 61	void		(*hpte_clear_all)(void);
 62
 63	int		(*tce_build)(struct iommu_table *tbl,
 64				     long index,
 65				     long npages,
 66				     unsigned long uaddr,
 67				     enum dma_data_direction direction,
 68				     struct dma_attrs *attrs);
 69	void		(*tce_free)(struct iommu_table *tbl,
 70				    long index,
 71				    long npages);
 72	unsigned long	(*tce_get)(struct iommu_table *tbl,
 73				    long index);
 74	void		(*tce_flush)(struct iommu_table *tbl);
 75
 76	void __iomem *	(*ioremap)(phys_addr_t addr, unsigned long size,
 77				   unsigned long flags, void *caller);
 78	void		(*iounmap)(volatile void __iomem *token);
 79
 80#ifdef CONFIG_PM
 81	void		(*iommu_save)(void);
 82	void		(*iommu_restore)(void);
 83#endif
 84#endif /* CONFIG_PPC64 */
 85
 86	void		(*pci_dma_dev_setup)(struct pci_dev *dev);
 87	void		(*pci_dma_bus_setup)(struct pci_bus *bus);
 88
 89	/* Platform set_dma_mask and dma_get_required_mask overrides */
 90	int		(*dma_set_mask)(struct device *dev, u64 dma_mask);
 91	u64		(*dma_get_required_mask)(struct device *dev);
 92
 93	int		(*probe)(void);
 94	void		(*setup_arch)(void); /* Optional, may be NULL */
 95	void		(*init_early)(void);
 96	/* Optional, may be NULL. */
 97	void		(*show_cpuinfo)(struct seq_file *m);
 98	void		(*show_percpuinfo)(struct seq_file *m, int i);
 99
100	void		(*init_IRQ)(void);
101
102	/* Return an irq, or NO_IRQ to indicate there are none pending. */
103	unsigned int	(*get_irq)(void);
104
105	/* PCI stuff */
106	/* Called after scanning the bus, before allocating resources */
107	void		(*pcibios_fixup)(void);
108	int		(*pci_probe_mode)(struct pci_bus *);
109	void		(*pci_irq_fixup)(struct pci_dev *dev);
110
111	/* To setup PHBs when using automatic OF platform driver for PCI */
112	int		(*pci_setup_phb)(struct pci_controller *host);
113
114#ifdef CONFIG_PCI_MSI
115	int		(*msi_check_device)(struct pci_dev* dev,
116					    int nvec, int type);
117	int		(*setup_msi_irqs)(struct pci_dev *dev,
118					  int nvec, int type);
119	void		(*teardown_msi_irqs)(struct pci_dev *dev);
120#endif
121
122	void		(*restart)(char *cmd);
123	void		(*power_off)(void);
124	void		(*halt)(void);
125	void		(*panic)(char *str);
126	void		(*cpu_die)(void);
127
128	long		(*time_init)(void); /* Optional, may be NULL */
129
130	int		(*set_rtc_time)(struct rtc_time *);
131	void		(*get_rtc_time)(struct rtc_time *);
132	unsigned long	(*get_boot_time)(void);
133	unsigned char 	(*rtc_read_val)(int addr);
134	void		(*rtc_write_val)(int addr, unsigned char val);
135
136	void		(*calibrate_decr)(void);
137
138	void		(*progress)(char *, unsigned short);
139
140	/* Interface for platform error logging */
141	void 		(*log_error)(char *buf, unsigned int err_type, int fatal);
142
143	unsigned char 	(*nvram_read_val)(int addr);
144	void		(*nvram_write_val)(int addr, unsigned char val);
145	ssize_t		(*nvram_write)(char *buf, size_t count, loff_t *index);
146	ssize_t		(*nvram_read)(char *buf, size_t count, loff_t *index);	
147	ssize_t		(*nvram_size)(void);		
148	void		(*nvram_sync)(void);
149
150	/* Exception handlers */
151	int		(*system_reset_exception)(struct pt_regs *regs);
152	int 		(*machine_check_exception)(struct pt_regs *regs);
153
154	/* Motherboard/chipset features. This is a kind of general purpose
155	 * hook used to control some machine specific features (like reset
156	 * lines, chip power control, etc...).
157	 */
158	long	 	(*feature_call)(unsigned int feature, ...);
159
160	/* Get legacy PCI/IDE interrupt mapping */ 
161	int		(*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel);
162	
163	/* Get access protection for /dev/mem */
164	pgprot_t	(*phys_mem_access_prot)(struct file *file,
165						unsigned long pfn,
166						unsigned long size,
167						pgprot_t vma_prot);
168
169	/* Idle loop for this platform, leave empty for default idle loop */
170	void		(*idle_loop)(void);
171
172	/*
173	 * Function for waiting for work with reduced power in idle loop;
174	 * called with interrupts disabled.
175	 */
176	void		(*power_save)(void);
177
178	/* Function to enable performance monitor counters for this
179	   platform, called once per cpu. */
180	void		(*enable_pmcs)(void);
181
182	/* Set DABR for this platform, leave empty for default implemenation */
183	int		(*set_dabr)(unsigned long dabr);
184
185#ifdef CONFIG_PPC32	/* XXX for now */
186	/* A general init function, called by ppc_init in init/main.c.
187	   May be NULL. */
188	void		(*init)(void);
189
190	void		(*kgdb_map_scc)(void);
191
192	/*
193	 * optional PCI "hooks"
194	 */
195	/* Called at then very end of pcibios_init() */
196	void (*pcibios_after_init)(void);
197
198#endif /* CONFIG_PPC32 */
199
200	/* Called in indirect_* to avoid touching devices */
201	int (*pci_exclude_device)(struct pci_controller *, unsigned char, unsigned char);
202
203	/* Called after PPC generic resource fixup to perform
204	   machine specific fixups */
205	void (*pcibios_fixup_resources)(struct pci_dev *);
206
207	/* Called for each PCI bus in the system when it's probed */
208	void (*pcibios_fixup_bus)(struct pci_bus *);
209
210	/* Called when pci_enable_device() is called. Returns 0 to
211	 * allow assignment/enabling of the device. */
212	int  (*pcibios_enable_device_hook)(struct pci_dev *);
213
214	/* Called after scan and before resource survey */
215	void (*pcibios_fixup_phb)(struct pci_controller *hose);
216
217	/* Called to shutdown machine specific hardware not already controlled
218	 * by other drivers.
219	 */
220	void (*machine_shutdown)(void);
221
222#ifdef CONFIG_KEXEC
223	void (*kexec_cpu_down)(int crash_shutdown, int secondary);
224
225	/* Called to do what every setup is needed on image and the
226	 * reboot code buffer. Returns 0 on success.
227	 * Provide your own (maybe dummy) implementation if your platform
228	 * claims to support kexec.
229	 */
230	int (*machine_kexec_prepare)(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 */
238
239#ifdef CONFIG_SUSPEND
240	/* These are called to disable and enable, respectively, IRQs when
241	 * entering a suspend state.  If NULL, then the generic versions
242	 * will be called.  The generic versions disable/enable the
243	 * decrementer along with interrupts.
244	 */
245	void (*suspend_disable_irqs)(void);
246	void (*suspend_enable_irqs)(void);
247#endif
248	int (*suspend_disable_cpu)(void);
249
250#ifdef CONFIG_ARCH_CPU_PROBE_RELEASE
251	ssize_t (*cpu_probe)(const char *, size_t);
252	ssize_t (*cpu_release)(const char *, size_t);
253#endif
254};
255
256extern void e500_idle(void);
257extern void power4_idle(void);
258extern void power7_idle(void);
259extern void ppc6xx_idle(void);
260extern void book3e_idle(void);
261
262/*
263 * ppc_md contains a copy of the machine description structure for the
264 * current platform. machine_id contains the initial address where the
265 * description was found during boot.
266 */
267extern struct machdep_calls ppc_md;
268extern struct machdep_calls *machine_id;
269
270#define __machine_desc __attribute__ ((__section__ (".machine.desc")))
271
272#define define_machine(name)					\
273	extern struct machdep_calls mach_##name;		\
274	EXPORT_SYMBOL(mach_##name);				\
275	struct machdep_calls mach_##name __machine_desc =
276
277#define machine_is(name) \
278	({ \
279		extern struct machdep_calls mach_##name \
280			__attribute__((weak));		 \
281		machine_id == &mach_##name; \
282	})
283
284extern void probe_machine(void);
285
286extern char cmd_line[COMMAND_LINE_SIZE];
287
288#ifdef CONFIG_PPC_PMAC
289/*
290 * Power macintoshes have either a CUDA, PMU or SMU controlling
291 * system reset, power, NVRAM, RTC.
292 */
293typedef enum sys_ctrler_kind {
294	SYS_CTRLER_UNKNOWN = 0,
295	SYS_CTRLER_CUDA = 1,
296	SYS_CTRLER_PMU = 2,
297	SYS_CTRLER_SMU = 3,
298} sys_ctrler_t;
299extern sys_ctrler_t sys_ctrler;
300
301#endif /* CONFIG_PPC_PMAC */
302
303
304/* Functions to produce codes on the leds.
305 * The SRC code should be unique for the message category and should
306 * be limited to the lower 24 bits (the upper 8 are set by these funcs),
307 * and (for boot & dump) should be sorted numerically in the order
308 * the events occur.
309 */
310/* Print a boot progress message. */
311void ppc64_boot_msg(unsigned int src, const char *msg);
312
313static inline void log_error(char *buf, unsigned int err_type, int fatal)
314{
315	if (ppc_md.log_error)
316		ppc_md.log_error(buf, err_type, fatal);
317}
318
319#define __define_machine_initcall(mach,level,fn,id) \
320	static int __init __machine_initcall_##mach##_##fn(void) { \
321		if (machine_is(mach)) return fn(); \
322		return 0; \
323	} \
324	__define_initcall(level,__machine_initcall_##mach##_##fn,id);
325
326#define machine_core_initcall(mach,fn)		__define_machine_initcall(mach,"1",fn,1)
327#define machine_core_initcall_sync(mach,fn)	__define_machine_initcall(mach,"1s",fn,1s)
328#define machine_postcore_initcall(mach,fn)	__define_machine_initcall(mach,"2",fn,2)
329#define machine_postcore_initcall_sync(mach,fn)	__define_machine_initcall(mach,"2s",fn,2s)
330#define machine_arch_initcall(mach,fn)		__define_machine_initcall(mach,"3",fn,3)
331#define machine_arch_initcall_sync(mach,fn)	__define_machine_initcall(mach,"3s",fn,3s)
332#define machine_subsys_initcall(mach,fn)	__define_machine_initcall(mach,"4",fn,4)
333#define machine_subsys_initcall_sync(mach,fn)	__define_machine_initcall(mach,"4s",fn,4s)
334#define machine_fs_initcall(mach,fn)		__define_machine_initcall(mach,"5",fn,5)
335#define machine_fs_initcall_sync(mach,fn)	__define_machine_initcall(mach,"5s",fn,5s)
336#define machine_rootfs_initcall(mach,fn)	__define_machine_initcall(mach,"rootfs",fn,rootfs)
337#define machine_device_initcall(mach,fn)	__define_machine_initcall(mach,"6",fn,6)
338#define machine_device_initcall_sync(mach,fn)	__define_machine_initcall(mach,"6s",fn,6s)
339#define machine_late_initcall(mach,fn)		__define_machine_initcall(mach,"7",fn,7)
340#define machine_late_initcall_sync(mach,fn)	__define_machine_initcall(mach,"7s",fn,7s)
341
342#endif /* __KERNEL__ */
343#endif /* _ASM_POWERPC_MACHDEP_H */