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);
33 int (*cpu_disable)(void);
34 void (*cpu_die)(unsigned int nr);
38 struct machdep_calls {
39 void (*hpte_invalidate)(unsigned long slot,
43 long (*hpte_updatepp)(unsigned long slot,
48 void (*hpte_updateboltedpp)(unsigned long newpp,
50 long (*hpte_insert)(unsigned long hpte_group,
54 unsigned long hpteflags,
57 long (*hpte_remove)(unsigned long hpte_group);
58 void (*flush_hash_range)(unsigned long context,
61 /* special for kexec, to be called in real mode, linar mapping is
62 * destroyed as well */
63 void (*hpte_clear_all)(void);
65 void (*tce_build)(struct iommu_table * tbl,
69 enum dma_data_direction direction);
70 void (*tce_free)(struct iommu_table *tbl,
73 void (*tce_flush)(struct iommu_table *tbl);
74 void (*iommu_dev_setup)(struct pci_dev *dev);
75 void (*iommu_bus_setup)(struct pci_bus *bus);
77 int (*probe)(int platform);
78 void (*setup_arch)(void);
79 void (*init_early)(void);
80 /* Optional, may be NULL. */
81 void (*get_cpuinfo)(struct seq_file *m);
83 void (*init_IRQ)(void);
84 int (*get_irq)(struct pt_regs *);
87 void (*pcibios_fixup)(void);
89 void (*restart)(char *cmd);
90 void (*power_off)(void);
92 void (*panic)(char *str);
93 void (*cpu_die)(void);
95 int (*set_rtc_time)(struct rtc_time *);
96 void (*get_rtc_time)(struct rtc_time *);
97 void (*get_boot_time)(struct rtc_time *);
99 void (*calibrate_decr)(void);
101 void (*progress)(char *, unsigned short);
103 /* Debug interface. Low level I/O to some terminal device */
104 void (*udbg_putc)(unsigned char c);
105 unsigned char (*udbg_getc)(void);
106 int (*udbg_getc_poll)(void);
108 /* Interface for platform error logging */
109 void (*log_error)(char *buf, unsigned int err_type, int fatal);
111 ssize_t (*nvram_write)(char *buf, size_t count, loff_t *index);
112 ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index);
113 ssize_t (*nvram_size)(void);
114 int (*nvram_sync)(void);
116 /* Exception handlers */
117 void (*system_reset_exception)(struct pt_regs *regs);
118 int (*machine_check_exception)(struct pt_regs *regs);
120 /* Motherboard/chipset features. This is a kind of general purpose
121 * hook used to control some machine specific features (like reset
122 * lines, chip power control, etc...).
124 long (*feature_call)(unsigned int feature, ...);
126 /* Check availability of legacy devices like i8042 */
127 int (*check_legacy_ioport)(unsigned int baseport);
129 /* Get legacy PCI/IDE interrupt mapping */
130 int (*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel);
134 extern struct machdep_calls ppc_md;
135 extern char cmd_line[COMMAND_LINE_SIZE];
137 /* Functions to produce codes on the leds.
138 * The SRC code should be unique for the message category and should
139 * be limited to the lower 24 bits (the upper 8 are set by these funcs),
140 * and (for boot & dump) should be sorted numerically in the order
143 /* Print a boot progress message. */
144 void ppc64_boot_msg(unsigned int src, const char *msg);
145 /* Print a termination message (print only -- does not stop the kernel) */
146 void ppc64_terminate_msg(unsigned int src, const char *msg);
147 /* Print something that needs attention (device error, etc) */
148 void ppc64_attention_msg(unsigned int src, const char *msg);
149 /* Print a dump progress message. */
150 void ppc64_dump_msg(unsigned int src, const char *msg);
152 static inline void log_error(char *buf, unsigned int err_type, int fatal)
154 if (ppc_md.log_error)
155 ppc_md.log_error(buf, err_type, fatal);
158 #endif /* _PPC64_MACHDEP_H */
159 #endif /* __KERNEL__ */