[net-next-2.6.git] / include / asm-powerpc / machdep.h

#ifndef _ASM_POWERPC_MACHDEP_H
#define _ASM_POWERPC_MACHDEP_H
#ifdef __KERNEL__

/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */

#include <linux/seq_file.h>
#include <linux/init.h>
#include <linux/dma-mapping.h>

#include <asm/setup.h>

/* We export this macro for external modules like Alsa to know if
 * ppc_md.feature_call is implemented or not
 */
#define CONFIG_PPC_HAS_FEATURE_CALLS

struct pt_regs;
struct pci_bus;	
struct device_node;
struct iommu_table;
struct rtc_time;
struct file;
struct pci_controller;
#ifdef CONFIG_KEXEC
struct kimage;
#endif

#ifdef CONFIG_SMP
struct smp_ops_t {
	void  (*message_pass)(int target, int msg);
	int   (*probe)(void);
	void  (*kick_cpu)(int nr);
	void  (*setup_cpu)(int nr);
	void  (*take_timebase)(void);
	void  (*give_timebase)(void);
	int   (*cpu_enable)(unsigned int nr);
	int   (*cpu_disable)(void);
	void  (*cpu_die)(unsigned int nr);
	int   (*cpu_bootable)(unsigned int nr);
};
#endif

struct machdep_calls {
	char		*name;
#ifdef CONFIG_PPC64
	void            (*hpte_invalidate)(unsigned long slot,
					   unsigned long va,
					   int psize, int ssize,
					   int local);
	long		(*hpte_updatepp)(unsigned long slot, 
					 unsigned long newpp, 
					 unsigned long va,
					 int psize, int ssize,
					 int local);
	void            (*hpte_updateboltedpp)(unsigned long newpp, 
					       unsigned long ea,
					       int psize, int ssize);
	long		(*hpte_insert)(unsigned long hpte_group,
				       unsigned long va,
				       unsigned long prpn,
				       unsigned long rflags,
				       unsigned long vflags,
				       int psize, int ssize);
	long		(*hpte_remove)(unsigned long hpte_group);
	void            (*hpte_removebolted)(unsigned long ea,
					     int psize, int ssize);
	void		(*flush_hash_range)(unsigned long number, int local);

	/* special for kexec, to be called in real mode, linar mapping is
	 * destroyed as well */
	void		(*hpte_clear_all)(void);

	int		(*tce_build)(struct iommu_table *tbl,
				     long index,
				     long npages,
				     unsigned long uaddr,
				     enum dma_data_direction direction,
				     struct dma_attrs *attrs);
	void		(*tce_free)(struct iommu_table *tbl,
				    long index,
				    long npages);
	unsigned long	(*tce_get)(struct iommu_table *tbl,
				    long index);
	void		(*tce_flush)(struct iommu_table *tbl);
	void		(*pci_dma_dev_setup)(struct pci_dev *dev);
	void		(*pci_dma_bus_setup)(struct pci_bus *bus);

	void __iomem *	(*ioremap)(phys_addr_t addr, unsigned long size,
				   unsigned long flags);
	void		(*iounmap)(volatile void __iomem *token);

#ifdef CONFIG_PM
	void		(*iommu_save)(void);
	void		(*iommu_restore)(void);
#endif
#endif /* CONFIG_PPC64 */

	int		(*probe)(void);
	void		(*setup_arch)(void); /* Optional, may be NULL */
	void		(*init_early)(void);
	/* Optional, may be NULL. */
	void		(*show_cpuinfo)(struct seq_file *m);
	void		(*show_percpuinfo)(struct seq_file *m, int i);

	void		(*init_IRQ)(void);
	unsigned int	(*get_irq)(void);
#ifdef CONFIG_KEXEC
	void		(*kexec_cpu_down)(int crash_shutdown, int secondary);
#endif

	/* PCI stuff */
	/* Called after scanning the bus, before allocating resources */
	void		(*pcibios_fixup)(void);
	int		(*pci_probe_mode)(struct pci_bus *);
	void		(*pci_irq_fixup)(struct pci_dev *dev);

	/* To setup PHBs when using automatic OF platform driver for PCI */
	int		(*pci_setup_phb)(struct pci_controller *host);

#ifdef CONFIG_PCI_MSI
	int		(*msi_check_device)(struct pci_dev* dev,
					    int nvec, int type);
	int		(*setup_msi_irqs)(struct pci_dev *dev,
					  int nvec, int type);
	void		(*teardown_msi_irqs)(struct pci_dev *dev);
#endif

	void		(*restart)(char *cmd);
	void		(*power_off)(void);
	void		(*halt)(void);
	void		(*panic)(char *str);
	void		(*cpu_die)(void);

	long		(*time_init)(void); /* Optional, may be NULL */

	int		(*set_rtc_time)(struct rtc_time *);
	void		(*get_rtc_time)(struct rtc_time *);
	unsigned long	(*get_boot_time)(void);
	unsigned char 	(*rtc_read_val)(int addr);
	void		(*rtc_write_val)(int addr, unsigned char val);

	void		(*calibrate_decr)(void);

	void		(*progress)(char *, unsigned short);

	/* Interface for platform error logging */
	void 		(*log_error)(char *buf, unsigned int err_type, int fatal);

	unsigned char 	(*nvram_read_val)(int addr);
	void		(*nvram_write_val)(int addr, unsigned char val);
	ssize_t		(*nvram_write)(char *buf, size_t count, loff_t *index);
	ssize_t		(*nvram_read)(char *buf, size_t count, loff_t *index);	
	ssize_t		(*nvram_size)(void);		
	void		(*nvram_sync)(void);

	/* Exception handlers */
	int		(*system_reset_exception)(struct pt_regs *regs);
	int 		(*machine_check_exception)(struct pt_regs *regs);

	/* Motherboard/chipset features. This is a kind of general purpose
	 * hook used to control some machine specific features (like reset
	 * lines, chip power control, etc...).
	 */
	long	 	(*feature_call)(unsigned int feature, ...);

	/* Get legacy PCI/IDE interrupt mapping */ 
	int		(*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel);
	
	/* Get access protection for /dev/mem */
	pgprot_t	(*phys_mem_access_prot)(struct file *file,
						unsigned long pfn,
						unsigned long size,
						pgprot_t vma_prot);

	/* Idle loop for this platform, leave empty for default idle loop */
	void		(*idle_loop)(void);

	/*
	 * Function for waiting for work with reduced power in idle loop;
	 * called with interrupts disabled.
	 */
	void		(*power_save)(void);

	/* Function to enable performance monitor counters for this
	   platform, called once per cpu. */
	void		(*enable_pmcs)(void);

	/* Set DABR for this platform, leave empty for default implemenation */
	int		(*set_dabr)(unsigned long dabr);

#ifdef CONFIG_PPC32	/* XXX for now */
	/* A general init function, called by ppc_init in init/main.c.
	   May be NULL. */
	void		(*init)(void);

	void		(*kgdb_map_scc)(void);

	/*
	 * optional PCI "hooks"
	 */
	/* Called in indirect_* to avoid touching devices */
	int (*pci_exclude_device)(struct pci_controller *, unsigned char, unsigned char);

	/* Called at then very end of pcibios_init() */
	void (*pcibios_after_init)(void);

#endif /* CONFIG_PPC32 */

	/* Called after PPC generic resource fixup to perform
	   machine specific fixups */
	void (*pcibios_fixup_resources)(struct pci_dev *);

	/* Called for each PCI bus in the system when it's probed */
	void (*pcibios_fixup_bus)(struct pci_bus *);

	/* Called when pci_enable_device() is called. Returns 0 to
	 * allow assignment/enabling of the device. */
	int  (*pcibios_enable_device_hook)(struct pci_dev *);

	/* Called to shutdown machine specific hardware not already controlled
	 * by other drivers.
	 */
	void (*machine_shutdown)(void);

#ifdef CONFIG_KEXEC
	/* Called to do the minimal shutdown needed to run a kexec'd kernel
	 * to run successfully.
	 * XXX Should we move this one out of kexec scope?
	 */
	void (*machine_crash_shutdown)(struct pt_regs *regs);

	/* Called to do what every setup is needed on image and the
	 * reboot code buffer. Returns 0 on success.
	 * Provide your own (maybe dummy) implementation if your platform
	 * claims to support kexec.
	 */
	int (*machine_kexec_prepare)(struct kimage *image);

	/* Called to handle any machine specific cleanup on image */
	void (*machine_kexec_cleanup)(struct kimage *image);

	/* Called to perform the _real_ kexec.
	 * Do NOT allocate memory or fail here. We are past the point of
	 * no return.
	 */
	void (*machine_kexec)(struct kimage *image);
#endif /* CONFIG_KEXEC */

#ifdef CONFIG_SUSPEND
	/* These are called to disable and enable, respectively, IRQs when
	 * entering a suspend state.  If NULL, then the generic versions
	 * will be called.  The generic versions disable/enable the
	 * decrementer along with interrupts.
	 */
	void (*suspend_disable_irqs)(void);
	void (*suspend_enable_irqs)(void);
#endif
};

extern void e500_idle(void);
extern void power4_idle(void);
extern void power4_cpu_offline_powersave(void);
extern void ppc6xx_idle(void);

/*
 * ppc_md contains a copy of the machine description structure for the
 * current platform. machine_id contains the initial address where the
 * description was found during boot.
 */
extern struct machdep_calls ppc_md;
extern struct machdep_calls *machine_id;

#define __machine_desc __attribute__ ((__section__ (".machine.desc")))

#define define_machine(name)					\
	extern struct machdep_calls mach_##name;		\
	EXPORT_SYMBOL(mach_##name);				\
	struct machdep_calls mach_##name __machine_desc =

#define machine_is(name) \
	({ \
		extern struct machdep_calls mach_##name \
			__attribute__((weak));		 \
		machine_id == &mach_##name; \
	})

extern void probe_machine(void);

extern char cmd_line[COMMAND_LINE_SIZE];

#ifdef CONFIG_PPC_PMAC
/*
 * Power macintoshes have either a CUDA, PMU or SMU controlling
 * system reset, power, NVRAM, RTC.
 */
typedef enum sys_ctrler_kind {
	SYS_CTRLER_UNKNOWN = 0,
	SYS_CTRLER_CUDA = 1,
	SYS_CTRLER_PMU = 2,
	SYS_CTRLER_SMU = 3,
} sys_ctrler_t;
extern sys_ctrler_t sys_ctrler;

#endif /* CONFIG_PPC_PMAC */

extern void setup_pci_ptrs(void);

#ifdef CONFIG_SMP
/* Poor default implementations */
extern void __devinit smp_generic_give_timebase(void);
extern void __devinit smp_generic_take_timebase(void);
#endif /* CONFIG_SMP */


/* Functions to produce codes on the leds.
 * The SRC code should be unique for the message category and should
 * be limited to the lower 24 bits (the upper 8 are set by these funcs),
 * and (for boot & dump) should be sorted numerically in the order
 * the events occur.
 */
/* Print a boot progress message. */
void ppc64_boot_msg(unsigned int src, const char *msg);
/* Print a termination message (print only -- does not stop the kernel) */
void ppc64_terminate_msg(unsigned int src, const char *msg);

static inline void log_error(char *buf, unsigned int err_type, int fatal)
{
	if (ppc_md.log_error)
		ppc_md.log_error(buf, err_type, fatal);
}

#define __define_machine_initcall(mach,level,fn,id) \
	static int __init __machine_initcall_##mach##_##fn(void) { \
		if (machine_is(mach)) return fn(); \
		return 0; \
	} \
	__define_initcall(level,__machine_initcall_##mach##_##fn,id);

#define machine_core_initcall(mach,fn)		__define_machine_initcall(mach,"1",fn,1)
#define machine_core_initcall_sync(mach,fn)	__define_machine_initcall(mach,"1s",fn,1s)
#define machine_postcore_initcall(mach,fn)	__define_machine_initcall(mach,"2",fn,2)
#define machine_postcore_initcall_sync(mach,fn)	__define_machine_initcall(mach,"2s",fn,2s)
#define machine_arch_initcall(mach,fn)		__define_machine_initcall(mach,"3",fn,3)
#define machine_arch_initcall_sync(mach,fn)	__define_machine_initcall(mach,"3s",fn,3s)
#define machine_subsys_initcall(mach,fn)	__define_machine_initcall(mach,"4",fn,4)
#define machine_subsys_initcall_sync(mach,fn)	__define_machine_initcall(mach,"4s",fn,4s)
#define machine_fs_initcall(mach,fn)		__define_machine_initcall(mach,"5",fn,5)
#define machine_fs_initcall_sync(mach,fn)	__define_machine_initcall(mach,"5s",fn,5s)
#define machine_rootfs_initcall(mach,fn)	__define_machine_initcall(mach,"rootfs",fn,rootfs)
#define machine_device_initcall(mach,fn)	__define_machine_initcall(mach,"6",fn,6)
#define machine_device_initcall_sync(mach,fn)	__define_machine_initcall(mach,"6s",fn,6s)
#define machine_late_initcall(mach,fn)		__define_machine_initcall(mach,"7",fn,7)
#define machine_late_initcall_sync(mach,fn)	__define_machine_initcall(mach,"7s",fn,7s)

void generic_suspend_disable_irqs(void);
void generic_suspend_enable_irqs(void);

#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_MACHDEP_H */
Commit	Line	Data
b41fc4f8 PM	1	#ifndef _ASM_POWERPC_MACHDEP_H
b41fc4f8 PM	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;
4c9d2800	29	struct pci_controller;
3d1229d6 ME	30	#ifdef CONFIG_KEXEC
	31	struct kimage;
	32	#endif
1da177e4 LT	33
	34	#ifdef CONFIG_SMP
	35	struct smp_ops_t {
	36	void (*message_pass)(int target, int msg);
	37	int (*probe)(void);
	38	void (*kick_cpu)(int nr);
	39	void (*setup_cpu)(int nr);
	40	void (*take_timebase)(void);
	41	void (*give_timebase)(void);
	42	int (*cpu_enable)(unsigned int nr);
	43	int (*cpu_disable)(void);
	44	void (*cpu_die)(unsigned int nr);
	45	int (*cpu_bootable)(unsigned int nr);
	46	};
	47	#endif
	48
	49	struct machdep_calls {
e8222502	50	char *name;
143a1dec	51	#ifdef CONFIG_PPC64
1da177e4 LT	52	void (*hpte_invalidate)(unsigned long slot,
1da177e4 LT	53	unsigned long va,
1189be65	54	int psize, int ssize,
1da177e4 LT	55	int local);
	56	long (*hpte_updatepp)(unsigned long slot,
	57	unsigned long newpp,
	58	unsigned long va,
1189be65	59	int psize, int ssize,
1da177e4 LT	60	int local);
1da177e4 LT	61	void (*hpte_updateboltedpp)(unsigned long newpp,
3c726f8d	62	unsigned long ea,
1189be65	63	int psize, int ssize);
1da177e4 LT	64	long (*hpte_insert)(unsigned long hpte_group,
	65	unsigned long va,
	66	unsigned long prpn,
3c726f8d	67	unsigned long rflags,
96e28449	68	unsigned long vflags,
1189be65	69	int psize, int ssize);
1da177e4	70	long (*hpte_remove)(unsigned long hpte_group);
f8c8803b BP	71	void (*hpte_removebolted)(unsigned long ea,
f8c8803b BP	72	int psize, int ssize);
61b1a942 BH	73	void (*flush_hash_range)(unsigned long number, int local);
61b1a942 BH	74
1da177e4 LT	75	/* special for kexec, to be called in real mode, linar mapping is
	76	* destroyed as well */
	77	void (*hpte_clear_all)(void);
	78
6490c490	79	int (tce_build)(struct iommu_table tbl,
1da177e4 LT	80	long index,
	81	long npages,
	82	unsigned long uaddr,
4f3dd8a0 MN	83	enum dma_data_direction direction,
4f3dd8a0 MN	84	struct dma_attrs *attrs);
1da177e4 LT	85	void (tce_free)(struct iommu_table tbl,
	86	long index,
	87	long npages);
5f50867b HM	88	unsigned long (tce_get)(struct iommu_table tbl,
5f50867b HM	89	long index);
1da177e4	90	void (tce_flush)(struct iommu_table tbl);
12d04eef BH	91	void (pci_dma_dev_setup)(struct pci_dev dev);
12d04eef BH	92	void (pci_dma_bus_setup)(struct pci_bus bus);
4cb3cee0	93
68a64357	94	void __iomem * (*ioremap)(phys_addr_t addr, unsigned long size,
4cb3cee0	95	unsigned long flags);
68a64357	96	void (iounmap)(volatile void __iomem token);
7e11580b JB	97
	98	#ifdef CONFIG_PM
	99	void (*iommu_save)(void);
	100	void (*iommu_restore)(void);
	101	#endif
e8222502	102	#endif /* CONFIG_PPC64 */
1da177e4	103
e8222502	104	int (*probe)(void);
38db7e74	105	void (setup_arch)(void); / Optional, may be NULL */
1da177e4 LT	106	void (*init_early)(void);
1da177e4 LT	107	/* Optional, may be NULL. */
d8699e65 PM	108	void (show_cpuinfo)(struct seq_file m);
d8699e65 PM	109	void (show_percpuinfo)(struct seq_file m, int i);
1da177e4 LT	110
1da177e4 LT	111	void (*init_IRQ)(void);
35a84c2f	112	unsigned int (*get_irq)(void);
c5e24354 ME	113	#ifdef CONFIG_KEXEC
	114	void (*kexec_cpu_down)(int crash_shutdown, int secondary);
	115	#endif
1da177e4 LT	116
1da177e4 LT	117	/* PCI stuff */
143a1dec	118	/* Called after scanning the bus, before allocating resources */
1da177e4	119	void (*pcibios_fixup)(void);
4267292b	120	int (pci_probe_mode)(struct pci_bus );
f90bb153	121	void (pci_irq_fixup)(struct pci_dev dev);
1da177e4	122
4c9d2800 BH	123	/* To setup PHBs when using automatic OF platform driver for PCI */
	124	int (pci_setup_phb)(struct pci_controller host);
	125
df87ef55 ME	126	#ifdef CONFIG_PCI_MSI
	127	int (msi_check_device)(struct pci_dev dev,
	128	int nvec, int type);
	129	int (setup_msi_irqs)(struct pci_dev dev,
	130	int nvec, int type);
	131	void (teardown_msi_irqs)(struct pci_dev dev);
	132	#endif
	133
1da177e4 LT	134	void (restart)(char cmd);
	135	void (*power_off)(void);
	136	void (*halt)(void);
	137	void (panic)(char str);
	138	void (*cpu_die)(void);
	139
143a1dec PM	140	long (time_init)(void); / Optional, may be NULL */
143a1dec PM	141
1da177e4 LT	142	int (set_rtc_time)(struct rtc_time );
1da177e4 LT	143	void (get_rtc_time)(struct rtc_time );
143a1dec PM	144	unsigned long (*get_boot_time)(void);
	145	unsigned char (*rtc_read_val)(int addr);
	146	void (*rtc_write_val)(int addr, unsigned char val);
1da177e4 LT	147
	148	void (*calibrate_decr)(void);
	149
	150	void (progress)(char , unsigned short);
	151
1da177e4 LT	152	/* Interface for platform error logging */
	153	void (log_error)(char buf, unsigned int err_type, int fatal);
	154
35499c01 PM	155	unsigned char (*nvram_read_val)(int addr);
35499c01 PM	156	void (*nvram_write_val)(int addr, unsigned char val);
1da177e4 LT	157	ssize_t (nvram_write)(char buf, size_t count, loff_t *index);
	158	ssize_t (nvram_read)(char buf, size_t count, loff_t *index);
	159	ssize_t (*nvram_size)(void);
143a1dec	160	void (*nvram_sync)(void);
1da177e4 LT	161
1da177e4 LT	162	/* Exception handlers */
c902be71	163	int (system_reset_exception)(struct pt_regs regs);
1da177e4 LT	164	int (machine_check_exception)(struct pt_regs regs);
	165
	166	/* Motherboard/chipset features. This is a kind of general purpose
	167	* hook used to control some machine specific features (like reset
	168	* lines, chip power control, etc...).
	169	*/
	170	long (*feature_call)(unsigned int feature, ...);
	171
1da177e4 LT	172	/* Get legacy PCI/IDE interrupt mapping */
	173	int (pci_get_legacy_ide_irq)(struct pci_dev dev, int channel);
	174
	175	/* Get access protection for /dev/mem */
	176	pgprot_t (phys_mem_access_prot)(struct file file,
8b150478	177	unsigned long pfn,
1da177e4 LT	178	unsigned long size,
	179	pgprot_t vma_prot);
	180
fd899c0c	181	/* Idle loop for this platform, leave empty for default idle loop */
143a1dec	182	void (*idle_loop)(void);
180a3362	183
a0652fc9 PM	184	/*
	185	* Function for waiting for work with reduced power in idle loop;
	186	* called with interrupts disabled.
	187	*/
	188	void (*power_save)(void);
	189
143a1dec PM	190	/* Function to enable performance monitor counters for this
143a1dec PM	191	platform, called once per cpu. */
180a3362	192	void (*enable_pmcs)(void);
143a1dec	193
76032de8 ME	194	/* Set DABR for this platform, leave empty for default implemenation */
	195	int (*set_dabr)(unsigned long dabr);
	196
143a1dec	197	#ifdef CONFIG_PPC32 /* XXX for now */
143a1dec PM	198	/* A general init function, called by ppc_init in init/main.c.
	199	May be NULL. */
	200	void (*init)(void);
	201
143a1dec PM	202	void (*kgdb_map_scc)(void);
143a1dec PM	203
143a1dec PM	204	/*
	205	* optional PCI "hooks"
	206	*/
143a1dec	207	/* Called in indirect_* to avoid touching devices */
7d52c7b0	208	int (pci_exclude_device)(struct pci_controller , unsigned char, unsigned char);
143a1dec PM	209
	210	/* Called at then very end of pcibios_init() */
	211	void (*pcibios_after_init)(void);
	212
3d1229d6	213	#endif /* CONFIG_PPC32 */
143a1dec	214
bf5e2ba2 BH	215	/* Called after PPC generic resource fixup to perform
	216	machine specific fixups */
	217	void (pcibios_fixup_resources)(struct pci_dev );
	218
	219	/* Called for each PCI bus in the system when it's probed */
	220	void (pcibios_fixup_bus)(struct pci_bus );
	221
549beb9b BH	222	/* Called when pci_enable_device() is called. Returns 0 to
	223	* allow assignment/enabling of the device. */
	224	int (pcibios_enable_device_hook)(struct pci_dev );
	225
143a1dec PM	226	/* Called to shutdown machine specific hardware not already controlled
143a1dec PM	227	* by other drivers.
143a1dec PM	228	*/
	229	void (*machine_shutdown)(void);
	230
3d1229d6	231	#ifdef CONFIG_KEXEC
143a1dec PM	232	/* Called to do the minimal shutdown needed to run a kexec'd kernel
	233	* to run successfully.
	234	* XXX Should we move this one out of kexec scope?
	235	*/
cd0ca2ce	236	void (machine_crash_shutdown)(struct pt_regs regs);
143a1dec PM	237
	238	/* Called to do what every setup is needed on image and the
	239	* reboot code buffer. Returns 0 on success.
	240	* Provide your own (maybe dummy) implementation if your platform
	241	* claims to support kexec.
	242	*/
	243	int (machine_kexec_prepare)(struct kimage image);
	244
	245	/* Called to handle any machine specific cleanup on image */
	246	void (machine_kexec_cleanup)(struct kimage image);
	247
	248	/* Called to perform the _real_ kexec.
	249	* Do NOT allocate memory or fail here. We are past the point of
	250	* no return.
	251	*/
	252	void (machine_kexec)(struct kimage image);
	253	#endif /* CONFIG_KEXEC */
7ac5dde9 SW	254
	255	#ifdef CONFIG_SUSPEND
	256	/* These are called to disable and enable, respectively, IRQs when
	257	* entering a suspend state. If NULL, then the generic versions
	258	* will be called. The generic versions disable/enable the
	259	* decrementer along with interrupts.
	260	*/
	261	void (*suspend_disable_irqs)(void);
	262	void (*suspend_enable_irqs)(void);
	263	#endif
1da177e4 LT	264	};
1da177e4 LT	265
fc4033b2	266	extern void e500_idle(void);
a0652fc9	267	extern void power4_idle(void);
d9333afd	268	extern void power4_cpu_offline_powersave(void);
a0652fc9	269	extern void ppc6xx_idle(void);
fd899c0c	270
e8222502 BH	271	/*
	272	* ppc_md contains a copy of the machine description structure for the
	273	* current platform. machine_id contains the initial address where the
	274	* description was found during boot.
	275	*/
1da177e4	276	extern struct machdep_calls ppc_md;
e8222502 BH	277	extern struct machdep_calls *machine_id;
	278
	279	#define __machine_desc __attribute__ ((__section__ (".machine.desc")))
	280
d0e15bed PM	281	#define define_machine(name) \
	282	extern struct machdep_calls mach_##name; \
	283	EXPORT_SYMBOL(mach_##name); \
	284	struct machdep_calls mach_##name __machine_desc =
	285
e8222502 BH	286	#define machine_is(name) \
	287	({ \
	288	extern struct machdep_calls mach_##name \
	289	__attribute__((weak)); \
	290	machine_id == &mach_##name; \
	291	})
	292
	293	extern void probe_machine(void);
	294
1da177e4 LT	295	extern char cmd_line[COMMAND_LINE_SIZE];
	296
	297	#ifdef CONFIG_PPC_PMAC
	298	/*
	299	* Power macintoshes have either a CUDA, PMU or SMU controlling
	300	* system reset, power, NVRAM, RTC.
	301	*/
	302	typedef enum sys_ctrler_kind {
	303	SYS_CTRLER_UNKNOWN = 0,
	304	SYS_CTRLER_CUDA = 1,
	305	SYS_CTRLER_PMU = 2,
	306	SYS_CTRLER_SMU = 3,
	307	} sys_ctrler_t;
	308	extern sys_ctrler_t sys_ctrler;
	309
	310	#endif /* CONFIG_PPC_PMAC */
	311
143a1dec PM	312	extern void setup_pci_ptrs(void);
	313
	314	#ifdef CONFIG_SMP
	315	/* Poor default implementations */
	316	extern void __devinit smp_generic_give_timebase(void);
	317	extern void __devinit smp_generic_take_timebase(void);
	318	#endif /* CONFIG_SMP */
1da177e4 LT	319
	320
	321	/* Functions to produce codes on the leds.
	322	* The SRC code should be unique for the message category and should
	323	* be limited to the lower 24 bits (the upper 8 are set by these funcs),
	324	* and (for boot & dump) should be sorted numerically in the order
	325	* the events occur.
	326	*/
	327	/* Print a boot progress message. */
	328	void ppc64_boot_msg(unsigned int src, const char *msg);
	329	/* Print a termination message (print only -- does not stop the kernel) */
	330	void ppc64_terminate_msg(unsigned int src, const char *msg);
1da177e4 LT	331
	332	static inline void log_error(char *buf, unsigned int err_type, int fatal)
	333	{
	334	if (ppc_md.log_error)
	335	ppc_md.log_error(buf, err_type, fatal);
	336	}
	337
800d68c3 GL	338	#define __define_machine_initcall(mach,level,fn,id) \
	339	static int __init __machine_initcall_##mach##_##fn(void) { \
	340	if (machine_is(mach)) return fn(); \
	341	return 0; \
	342	} \
	343	__define_initcall(level,__machine_initcall_##mach##_##fn,id);
	344
	345	#define machine_core_initcall(mach,fn) __define_machine_initcall(mach,"1",fn,1)
	346	#define machine_core_initcall_sync(mach,fn) __define_machine_initcall(mach,"1s",fn,1s)
	347	#define machine_postcore_initcall(mach,fn) __define_machine_initcall(mach,"2",fn,2)
	348	#define machine_postcore_initcall_sync(mach,fn) __define_machine_initcall(mach,"2s",fn,2s)
	349	#define machine_arch_initcall(mach,fn) __define_machine_initcall(mach,"3",fn,3)
	350	#define machine_arch_initcall_sync(mach,fn) __define_machine_initcall(mach,"3s",fn,3s)
	351	#define machine_subsys_initcall(mach,fn) __define_machine_initcall(mach,"4",fn,4)
	352	#define machine_subsys_initcall_sync(mach,fn) __define_machine_initcall(mach,"4s",fn,4s)
	353	#define machine_fs_initcall(mach,fn) __define_machine_initcall(mach,"5",fn,5)
	354	#define machine_fs_initcall_sync(mach,fn) __define_machine_initcall(mach,"5s",fn,5s)
	355	#define machine_rootfs_initcall(mach,fn) __define_machine_initcall(mach,"rootfs",fn,rootfs)
	356	#define machine_device_initcall(mach,fn) __define_machine_initcall(mach,"6",fn,6)
	357	#define machine_device_initcall_sync(mach,fn) __define_machine_initcall(mach,"6s",fn,6s)
	358	#define machine_late_initcall(mach,fn) __define_machine_initcall(mach,"7",fn,7)
	359	#define machine_late_initcall_sync(mach,fn) __define_machine_initcall(mach,"7s",fn,7s)
	360
7ac5dde9 SW	361	void generic_suspend_disable_irqs(void);
	362	void generic_suspend_enable_irqs(void);
	363
1da177e4	364	#endif /* __KERNEL__ */
b41fc4f8	365	#endif /* _ASM_POWERPC_MACHDEP_H */