2 #ifndef _PPC64_MACHDEP_H
3 #define _PPC64_MACHDEP_H
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/config.h>
13 #include <linux/seq_file.h>
14 #include <linux/init.h>
15 #include <linux/dma-mapping.h>
17 #include <asm/setup.h>
27 void (*message_pass)(int target, int msg);
29 void (*kick_cpu)(int nr);
30 void (*setup_cpu)(int nr);
31 void (*take_timebase)(void);
32 void (*give_timebase)(void);
36 struct machdep_calls {
37 void (*hpte_invalidate)(unsigned long slot,
41 long (*hpte_updatepp)(unsigned long slot,
46 void (*hpte_updateboltedpp)(unsigned long newpp,
48 long (*hpte_insert)(unsigned long hpte_group,
52 unsigned long hpteflags,
55 long (*hpte_remove)(unsigned long hpte_group);
56 void (*flush_hash_range)(unsigned long context,
59 /* special for kexec, to be called in real mode, linar mapping is
60 * destroyed as well */
61 void (*hpte_clear_all)(void);
63 void (*tce_build)(struct iommu_table * tbl,
67 enum dma_data_direction direction);
68 void (*tce_free)(struct iommu_table *tbl,
71 void (*tce_flush)(struct iommu_table *tbl);
73 int (*probe)(int platform);
74 void (*setup_arch)(void);
75 void (*init_early)(void);
76 /* Optional, may be NULL. */
77 void (*get_cpuinfo)(struct seq_file *m);
79 void (*init_IRQ)(void);
80 int (*get_irq)(struct pt_regs *);
83 void (*pcibios_fixup)(void);
85 void (*restart)(char *cmd);
86 void (*power_off)(void);
88 void (*panic)(char *str);
90 int (*set_rtc_time)(struct rtc_time *);
91 void (*get_rtc_time)(struct rtc_time *);
92 void (*get_boot_time)(struct rtc_time *);
94 void (*calibrate_decr)(void);
96 void (*progress)(char *, unsigned short);
98 /* Debug interface. Low level I/O to some terminal device */
99 void (*udbg_putc)(unsigned char c);
100 unsigned char (*udbg_getc)(void);
101 int (*udbg_getc_poll)(void);
103 /* Interface for platform error logging */
104 void (*log_error)(char *buf, unsigned int err_type, int fatal);
106 ssize_t (*nvram_write)(char *buf, size_t count, loff_t *index);
107 ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index);
108 ssize_t (*nvram_size)(void);
109 int (*nvram_sync)(void);
111 /* Motherboard/chipset features. This is a kind of general purpose
112 * hook used to control some machine specific features (like reset
113 * lines, chip power control, etc...).
115 long (*feature_call)(unsigned int feature, ...);
119 extern struct machdep_calls ppc_md;
120 extern char cmd_line[COMMAND_LINE_SIZE];
122 /* Functions to produce codes on the leds.
123 * The SRC code should be unique for the message category and should
124 * be limited to the lower 24 bits (the upper 8 are set by these funcs),
125 * and (for boot & dump) should be sorted numerically in the order
128 /* Print a boot progress message. */
129 void ppc64_boot_msg(unsigned int src, const char *msg);
130 /* Print a termination message (print only -- does not stop the kernel) */
131 void ppc64_terminate_msg(unsigned int src, const char *msg);
132 /* Print something that needs attention (device error, etc) */
133 void ppc64_attention_msg(unsigned int src, const char *msg);
134 /* Print a dump progress message. */
135 void ppc64_dump_msg(unsigned int src, const char *msg);
137 static inline void log_error(char *buf, unsigned int err_type, int fatal)
139 if (ppc_md.log_error)
140 ppc_md.log_error(buf, err_type, fatal);
143 #endif /* _PPC64_MACHDEP_H */
144 #endif /* __KERNEL__ */