[mirror_ubuntu-zesty-kernel.git] / arch / powerpc / include / asm / 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 <linux/export.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;
struct kimage;

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

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

	void		(*pci_dma_dev_setup)(struct pci_dev *dev);
	void		(*pci_dma_bus_setup)(struct pci_bus *bus);

	/* Platform set_dma_mask override */
	int		(*dma_set_mask)(struct device *dev, u64 dma_mask);

	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);

	/* Return an irq, or NO_IRQ to indicate there are none pending.
	 * If for some reason there is no irq, but the interrupt
	 * shouldn't be counted as spurious, return NO_IRQ_IGNORE. */
	unsigned int	(*get_irq)(void);

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

#endif /* CONFIG_PPC32 */

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

	/* 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
	void (*kexec_cpu_down)(int crash_shutdown, int secondary);

	/* 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 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
	int (*suspend_disable_cpu)(void);

#ifdef CONFIG_ARCH_CPU_PROBE_RELEASE
	ssize_t (*cpu_probe)(const char *, size_t);
	ssize_t (*cpu_release)(const char *, size_t);
#endif
};

extern void e500_idle(void);
extern void power4_idle(void);
extern void power7_idle(void);
extern void ppc6xx_idle(void);
extern void book3e_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 */


/* 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);

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)

#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>
93087948	15	#include <linux/export.h>
1da177e4 LT	16
	17	#include <asm/setup.h>
	18
143a1dec PM	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
1da177e4 LT	24	struct pt_regs;
	25	struct pci_bus;
	26	struct device_node;
	27	struct iommu_table;
	28	struct rtc_time;
	29	struct file;
4c9d2800	30	struct pci_controller;
3d1229d6	31	struct kimage;
1da177e4	32
1da177e4	33	struct machdep_calls {
e8222502	34	char *name;
143a1dec	35	#ifdef CONFIG_PPC64
1da177e4 LT	36	void (*hpte_invalidate)(unsigned long slot,
1da177e4 LT	37	unsigned long va,
1189be65	38	int psize, int ssize,
1da177e4 LT	39	int local);
	40	long (*hpte_updatepp)(unsigned long slot,
	41	unsigned long newpp,
	42	unsigned long va,
1189be65	43	int psize, int ssize,
1da177e4 LT	44	int local);
1da177e4 LT	45	void (*hpte_updateboltedpp)(unsigned long newpp,
3c726f8d	46	unsigned long ea,
1189be65	47	int psize, int ssize);
1da177e4 LT	48	long (*hpte_insert)(unsigned long hpte_group,
	49	unsigned long va,
	50	unsigned long prpn,
3c726f8d	51	unsigned long rflags,
96e28449	52	unsigned long vflags,
1189be65	53	int psize, int ssize);
1da177e4	54	long (*hpte_remove)(unsigned long hpte_group);
f8c8803b BP	55	void (*hpte_removebolted)(unsigned long ea,
f8c8803b BP	56	int psize, int ssize);
61b1a942 BH	57	void (*flush_hash_range)(unsigned long number, int local);
61b1a942 BH	58
bee376ff	59	/* special for kexec, to be called in real mode, linear mapping is
1da177e4 LT	60	* destroyed as well */
	61	void (*hpte_clear_all)(void);
	62
6490c490	63	int (tce_build)(struct iommu_table tbl,
1da177e4 LT	64	long index,
	65	long npages,
	66	unsigned long uaddr,
4f3dd8a0 MN	67	enum dma_data_direction direction,
4f3dd8a0 MN	68	struct dma_attrs *attrs);
1da177e4 LT	69	void (tce_free)(struct iommu_table tbl,
	70	long index,
	71	long npages);
5f50867b HM	72	unsigned long (tce_get)(struct iommu_table tbl,
5f50867b HM	73	long index);
1da177e4	74	void (tce_flush)(struct iommu_table tbl);
4cb3cee0	75
68a64357	76	void __iomem * (*ioremap)(phys_addr_t addr, unsigned long size,
1cdab55d	77	unsigned long flags, void *caller);
68a64357	78	void (iounmap)(volatile void __iomem token);
7e11580b JB	79
	80	#ifdef CONFIG_PM
	81	void (*iommu_save)(void);
	82	void (*iommu_restore)(void);
	83	#endif
e8222502	84	#endif /* CONFIG_PPC64 */
1da177e4	85
4fc665b8 BB	86	void (pci_dma_dev_setup)(struct pci_dev dev);
	87	void (pci_dma_bus_setup)(struct pci_bus bus);
	88
5b6e9ff6 BH	89	/* Platform set_dma_mask override */
	90	int (dma_set_mask)(struct device dev, u64 dma_mask);
	91
e8222502	92	int (*probe)(void);
38db7e74	93	void (setup_arch)(void); / Optional, may be NULL */
1da177e4 LT	94	void (*init_early)(void);
1da177e4 LT	95	/* Optional, may be NULL. */
d8699e65 PM	96	void (show_cpuinfo)(struct seq_file m);
d8699e65 PM	97	void (show_percpuinfo)(struct seq_file m, int i);
1da177e4 LT	98
1da177e4 LT	99	void (*init_IRQ)(void);
9b647a30 ME	100
	101	/* Return an irq, or NO_IRQ to indicate there are none pending.
	102	* If for some reason there is no irq, but the interrupt
	103	* shouldn't be counted as spurious, return NO_IRQ_IGNORE. */
35a84c2f	104	unsigned int (*get_irq)(void);
1da177e4 LT	105
1da177e4 LT	106	/* PCI stuff */
143a1dec	107	/* Called after scanning the bus, before allocating resources */
1da177e4	108	void (*pcibios_fixup)(void);
4267292b	109	int (pci_probe_mode)(struct pci_bus );
f90bb153	110	void (pci_irq_fixup)(struct pci_dev dev);
1da177e4	111
4c9d2800 BH	112	/* To setup PHBs when using automatic OF platform driver for PCI */
	113	int (pci_setup_phb)(struct pci_controller host);
	114
df87ef55 ME	115	#ifdef CONFIG_PCI_MSI
	116	int (msi_check_device)(struct pci_dev dev,
	117	int nvec, int type);
	118	int (setup_msi_irqs)(struct pci_dev dev,
	119	int nvec, int type);
	120	void (teardown_msi_irqs)(struct pci_dev dev);
	121	#endif
	122
1da177e4 LT	123	void (restart)(char cmd);
	124	void (*power_off)(void);
	125	void (*halt)(void);
	126	void (panic)(char str);
	127	void (*cpu_die)(void);
	128
143a1dec PM	129	long (time_init)(void); / Optional, may be NULL */
143a1dec PM	130
1da177e4 LT	131	int (set_rtc_time)(struct rtc_time );
1da177e4 LT	132	void (get_rtc_time)(struct rtc_time );
143a1dec PM	133	unsigned long (*get_boot_time)(void);
	134	unsigned char (*rtc_read_val)(int addr);
	135	void (*rtc_write_val)(int addr, unsigned char val);
1da177e4 LT	136
	137	void (*calibrate_decr)(void);
	138
	139	void (progress)(char , unsigned short);
	140
1da177e4 LT	141	/* Interface for platform error logging */
	142	void (log_error)(char buf, unsigned int err_type, int fatal);
	143
35499c01 PM	144	unsigned char (*nvram_read_val)(int addr);
35499c01 PM	145	void (*nvram_write_val)(int addr, unsigned char val);
1da177e4 LT	146	ssize_t (nvram_write)(char buf, size_t count, loff_t *index);
	147	ssize_t (nvram_read)(char buf, size_t count, loff_t *index);
	148	ssize_t (*nvram_size)(void);
143a1dec	149	void (*nvram_sync)(void);
1da177e4 LT	150
1da177e4 LT	151	/* Exception handlers */
c902be71	152	int (system_reset_exception)(struct pt_regs regs);
1da177e4 LT	153	int (machine_check_exception)(struct pt_regs regs);
	154
	155	/* Motherboard/chipset features. This is a kind of general purpose
	156	* hook used to control some machine specific features (like reset
	157	* lines, chip power control, etc...).
	158	*/
	159	long (*feature_call)(unsigned int feature, ...);
	160
1da177e4 LT	161	/* Get legacy PCI/IDE interrupt mapping */
	162	int (pci_get_legacy_ide_irq)(struct pci_dev dev, int channel);
	163
	164	/* Get access protection for /dev/mem */
	165	pgprot_t (phys_mem_access_prot)(struct file file,
8b150478	166	unsigned long pfn,
1da177e4 LT	167	unsigned long size,
	168	pgprot_t vma_prot);
	169
fd899c0c	170	/* Idle loop for this platform, leave empty for default idle loop */
143a1dec	171	void (*idle_loop)(void);
180a3362	172
a0652fc9 PM	173	/*
	174	* Function for waiting for work with reduced power in idle loop;
	175	* called with interrupts disabled.
	176	*/
	177	void (*power_save)(void);
	178
143a1dec PM	179	/* Function to enable performance monitor counters for this
143a1dec PM	180	platform, called once per cpu. */
180a3362	181	void (*enable_pmcs)(void);
143a1dec	182
76032de8 ME	183	/* Set DABR for this platform, leave empty for default implemenation */
	184	int (*set_dabr)(unsigned long dabr);
	185
143a1dec	186	#ifdef CONFIG_PPC32 /* XXX for now */
143a1dec PM	187	/* A general init function, called by ppc_init in init/main.c.
	188	May be NULL. */
	189	void (*init)(void);
	190
143a1dec PM	191	void (*kgdb_map_scc)(void);
143a1dec PM	192
143a1dec PM	193	/*
	194	* optional PCI "hooks"
	195	*/
143a1dec PM	196	/* Called at then very end of pcibios_init() */
	197	void (*pcibios_after_init)(void);
	198
3d1229d6	199	#endif /* CONFIG_PPC32 */
143a1dec	200
89c2dd62 KG	201	/* Called in indirect_* to avoid touching devices */
	202	int (pci_exclude_device)(struct pci_controller , unsigned char, unsigned char);
	203
bf5e2ba2 BH	204	/* Called after PPC generic resource fixup to perform
	205	machine specific fixups */
	206	void (pcibios_fixup_resources)(struct pci_dev );
	207
	208	/* Called for each PCI bus in the system when it's probed */
	209	void (pcibios_fixup_bus)(struct pci_bus );
	210
549beb9b BH	211	/* Called when pci_enable_device() is called. Returns 0 to
	212	* allow assignment/enabling of the device. */
	213	int (pcibios_enable_device_hook)(struct pci_dev );
	214
143a1dec PM	215	/* Called to shutdown machine specific hardware not already controlled
143a1dec PM	216	* by other drivers.
143a1dec PM	217	*/
	218	void (*machine_shutdown)(void);
	219
3d1229d6	220	#ifdef CONFIG_KEXEC
50266a1f AB	221	void (*kexec_cpu_down)(int crash_shutdown, int secondary);
50266a1f AB	222
143a1dec PM	223	/* Called to do what every setup is needed on image and the
	224	* reboot code buffer. Returns 0 on success.
	225	* Provide your own (maybe dummy) implementation if your platform
	226	* claims to support kexec.
	227	*/
	228	int (machine_kexec_prepare)(struct kimage image);
357574c4 AB	229
	230	/* Called to perform the _real_ kexec.
	231	* Do NOT allocate memory or fail here. We are past the point of
	232	* no return.
	233	*/
	234	void (machine_kexec)(struct kimage image);
143a1dec	235	#endif /* CONFIG_KEXEC */
7ac5dde9 SW	236
	237	#ifdef CONFIG_SUSPEND
	238	/* These are called to disable and enable, respectively, IRQs when
	239	* entering a suspend state. If NULL, then the generic versions
	240	* will be called. The generic versions disable/enable the
	241	* decrementer along with interrupts.
	242	*/
	243	void (*suspend_disable_irqs)(void);
	244	void (*suspend_enable_irqs)(void);
	245	#endif
32d8ad4e	246	int (*suspend_disable_cpu)(void);
12633e80 NF	247
	248	#ifdef CONFIG_ARCH_CPU_PROBE_RELEASE
	249	ssize_t (cpu_probe)(const char , size_t);
	250	ssize_t (cpu_release)(const char , size_t);
	251	#endif
1da177e4 LT	252	};
1da177e4 LT	253
fc4033b2	254	extern void e500_idle(void);
a0652fc9	255	extern void power4_idle(void);
948cf67c	256	extern void power7_idle(void);
a0652fc9	257	extern void ppc6xx_idle(void);
34d97e07	258	extern void book3e_idle(void);
fd899c0c	259
e8222502 BH	260	/*
	261	* ppc_md contains a copy of the machine description structure for the
	262	* current platform. machine_id contains the initial address where the
	263	* description was found during boot.
	264	*/
1da177e4	265	extern struct machdep_calls ppc_md;
e8222502 BH	266	extern struct machdep_calls *machine_id;
	267
	268	#define __machine_desc __attribute__ ((__section__ (".machine.desc")))
	269
d0e15bed PM	270	#define define_machine(name) \
	271	extern struct machdep_calls mach_##name; \
	272	EXPORT_SYMBOL(mach_##name); \
	273	struct machdep_calls mach_##name __machine_desc =
	274
e8222502 BH	275	#define machine_is(name) \
	276	({ \
	277	extern struct machdep_calls mach_##name \
	278	__attribute__((weak)); \
	279	machine_id == &mach_##name; \
	280	})
	281
	282	extern void probe_machine(void);
	283
1da177e4 LT	284	extern char cmd_line[COMMAND_LINE_SIZE];
	285
	286	#ifdef CONFIG_PPC_PMAC
	287	/*
	288	* Power macintoshes have either a CUDA, PMU or SMU controlling
	289	* system reset, power, NVRAM, RTC.
	290	*/
	291	typedef enum sys_ctrler_kind {
	292	SYS_CTRLER_UNKNOWN = 0,
	293	SYS_CTRLER_CUDA = 1,
	294	SYS_CTRLER_PMU = 2,
	295	SYS_CTRLER_SMU = 3,
	296	} sys_ctrler_t;
	297	extern sys_ctrler_t sys_ctrler;
	298
	299	#endif /* CONFIG_PPC_PMAC */
	300
1da177e4 LT	301
	302	/* Functions to produce codes on the leds.
	303	* The SRC code should be unique for the message category and should
	304	* be limited to the lower 24 bits (the upper 8 are set by these funcs),
	305	* and (for boot & dump) should be sorted numerically in the order
	306	* the events occur.
	307	*/
	308	/* Print a boot progress message. */
	309	void ppc64_boot_msg(unsigned int src, const char *msg);
1da177e4 LT	310
	311	static inline void log_error(char *buf, unsigned int err_type, int fatal)
	312	{
	313	if (ppc_md.log_error)
	314	ppc_md.log_error(buf, err_type, fatal);
	315	}
	316
800d68c3 GL	317	#define __define_machine_initcall(mach,level,fn,id) \
	318	static int __init __machine_initcall_##mach##_##fn(void) { \
	319	if (machine_is(mach)) return fn(); \
	320	return 0; \
	321	} \
	322	__define_initcall(level,__machine_initcall_##mach##_##fn,id);
	323
	324	#define machine_core_initcall(mach,fn) __define_machine_initcall(mach,"1",fn,1)
	325	#define machine_core_initcall_sync(mach,fn) __define_machine_initcall(mach,"1s",fn,1s)
	326	#define machine_postcore_initcall(mach,fn) __define_machine_initcall(mach,"2",fn,2)
	327	#define machine_postcore_initcall_sync(mach,fn) __define_machine_initcall(mach,"2s",fn,2s)
	328	#define machine_arch_initcall(mach,fn) __define_machine_initcall(mach,"3",fn,3)
	329	#define machine_arch_initcall_sync(mach,fn) __define_machine_initcall(mach,"3s",fn,3s)
	330	#define machine_subsys_initcall(mach,fn) __define_machine_initcall(mach,"4",fn,4)
	331	#define machine_subsys_initcall_sync(mach,fn) __define_machine_initcall(mach,"4s",fn,4s)
	332	#define machine_fs_initcall(mach,fn) __define_machine_initcall(mach,"5",fn,5)
	333	#define machine_fs_initcall_sync(mach,fn) __define_machine_initcall(mach,"5s",fn,5s)
	334	#define machine_rootfs_initcall(mach,fn) __define_machine_initcall(mach,"rootfs",fn,rootfs)
	335	#define machine_device_initcall(mach,fn) __define_machine_initcall(mach,"6",fn,6)
	336	#define machine_device_initcall_sync(mach,fn) __define_machine_initcall(mach,"6s",fn,6s)
	337	#define machine_late_initcall(mach,fn) __define_machine_initcall(mach,"7",fn,7)
	338	#define machine_late_initcall_sync(mach,fn) __define_machine_initcall(mach,"7s",fn,7s)
	339
1da177e4	340	#endif /* __KERNEL__ */
b41fc4f8	341	#endif /* _ASM_POWERPC_MACHDEP_H */