aboutsummaryrefslogtreecommitdiff
path: root/include/asm-ppc64/machdep.h
blob: 1e6ad4824132020c3a621bfba43144321016021f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
#ifdef __KERNEL__
#ifndef _PPC64_MACHDEP_H
#define _PPC64_MACHDEP_H

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

#include <asm/setup.h>

struct pt_regs;
struct pci_bus;	
struct device_node;
struct iommu_table;
struct rtc_time;
struct file;

#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 {
	void            (*hpte_invalidate)(unsigned long slot,
					   unsigned long va,
					   int large,
					   int local);
	long		(*hpte_updatepp)(unsigned long slot, 
					 unsigned long newpp, 
					 unsigned long va,
					 int large,
					 int local);
	void            (*hpte_updateboltedpp)(unsigned long newpp, 
					       unsigned long ea);
	long		(*hpte_insert)(unsigned long hpte_group,
				       unsigned long va,
				       unsigned long prpn,
				       int secondary, 
				       unsigned long hpteflags, 
				       int bolted,
				       int large);
	long		(*hpte_remove)(unsigned long hpte_group);
	void		(*flush_hash_range)(unsigned long context,
					    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);

	void		(*tce_build)(struct iommu_table * tbl,
				     long index,
				     long npages,
				     unsigned long uaddr,
				     enum dma_data_direction direction);
	void		(*tce_free)(struct iommu_table *tbl,
				    long index,
				    long npages);
	void		(*tce_flush)(struct iommu_table *tbl);
	void		(*iommu_dev_setup)(struct pci_dev *dev);
	void		(*iommu_bus_setup)(struct pci_bus *bus);
	void		(*irq_bus_setup)(struct pci_bus *bus);

	int		(*probe)(int platform);
	void		(*setup_arch)(void);
	void		(*init_early)(void);
	/* Optional, may be NULL. */
	void		(*get_cpuinfo)(struct seq_file *m);

	void		(*init_IRQ)(void);
	int		(*get_irq)(struct pt_regs *);
	void		(*cpu_irq_down)(void);

	/* PCI stuff */
	void		(*pcibios_fixup)(void);

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

	int		(*set_rtc_time)(struct rtc_time *);
	void		(*get_rtc_time)(struct rtc_time *);
	void		(*get_boot_time)(struct rtc_time *);

	void		(*calibrate_decr)(void);

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

	/* Debug interface.  Low level I/O to some terminal device */
	void		(*udbg_putc)(unsigned char c);
	unsigned char	(*udbg_getc)(void);
	int		(*udbg_getc_poll)(void);

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

	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);		
	int		(*nvram_sync)(void);

	/* Exception handlers */
	void		(*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, ...);

	/* Check availability of legacy devices like i8042 */
	int 		(*check_legacy_ioport)(unsigned int baseport);

	/* 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 offset,
						unsigned long size,
						pgprot_t vma_prot);

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

extern int default_idle(void);
extern int native_idle(void);

extern struct machdep_calls ppc_md;
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);
/* Print a termination message (print only -- does not stop the kernel) */
void ppc64_terminate_msg(unsigned int src, const char *msg);
/* Print something that needs attention (device error, etc) */
void ppc64_attention_msg(unsigned int src, const char *msg);
/* Print a dump progress message. */
void ppc64_dump_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);
}

#endif /* _PPC64_MACHDEP_H */
#endif /* __KERNEL__ */