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>
28 void (*message_pass)(int target, int msg);
30 void (*kick_cpu)(int nr);
31 void (*setup_cpu)(int nr);
32 void (*take_timebase)(void);
33 void (*give_timebase)(void);
34 int (*cpu_enable)(unsigned int nr);
35 int (*cpu_disable)(void);
36 void (*cpu_die)(unsigned int nr);
37 int (*cpu_bootable)(unsigned int nr);
41 struct machdep_calls {
42 void (*hpte_invalidate)(unsigned long slot,
46 long (*hpte_updatepp)(unsigned long slot,
51 void (*hpte_updateboltedpp)(unsigned long newpp,
53 long (*hpte_insert)(unsigned long hpte_group,
57 unsigned long rflags);
58 long (*hpte_remove)(unsigned long hpte_group);
59 void (*flush_hash_range)(unsigned long context,
62 /* special for kexec, to be called in real mode, linar mapping is
63 * destroyed as well */
64 void (*hpte_clear_all)(void);
66 void (*tce_build)(struct iommu_table * tbl,
70 enum dma_data_direction direction);
71 void (*tce_free)(struct iommu_table *tbl,
74 void (*tce_flush)(struct iommu_table *tbl);
75 void (*iommu_dev_setup)(struct pci_dev *dev);
76 void (*iommu_bus_setup)(struct pci_bus *bus);
77 void (*irq_bus_setup)(struct pci_bus *bus);
79 int (*probe)(int platform);
80 void (*setup_arch)(void);
81 void (*init_early)(void);
82 /* Optional, may be NULL. */
83 void (*get_cpuinfo)(struct seq_file *m);
85 void (*init_IRQ)(void);
86 int (*get_irq)(struct pt_regs *);
87 void (*cpu_irq_down)(int secondary);
90 void (*pcibios_fixup)(void);
92 void (*restart)(char *cmd);
93 void (*power_off)(void);
95 void (*panic)(char *str);
96 void (*cpu_die)(void);
98 int (*set_rtc_time)(struct rtc_time *);
99 void (*get_rtc_time)(struct rtc_time *);
100 void (*get_boot_time)(struct rtc_time *);
102 void (*calibrate_decr)(void);
104 void (*progress)(char *, unsigned short);
106 /* Debug interface. Low level I/O to some terminal device */
107 void (*udbg_putc)(unsigned char c);
108 unsigned char (*udbg_getc)(void);
109 int (*udbg_getc_poll)(void);
111 /* Interface for platform error logging */
112 void (*log_error)(char *buf, unsigned int err_type, int fatal);
114 ssize_t (*nvram_write)(char *buf, size_t count, loff_t *index);
115 ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index);
116 ssize_t (*nvram_size)(void);
117 int (*nvram_sync)(void);
119 /* Exception handlers */
120 void (*system_reset_exception)(struct pt_regs *regs);
121 int (*machine_check_exception)(struct pt_regs *regs);
123 /* Motherboard/chipset features. This is a kind of general purpose
124 * hook used to control some machine specific features (like reset
125 * lines, chip power control, etc...).
127 long (*feature_call)(unsigned int feature, ...);
129 /* Check availability of legacy devices like i8042 */
130 int (*check_legacy_ioport)(unsigned int baseport);
132 /* Get legacy PCI/IDE interrupt mapping */
133 int (*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel);
135 /* Get access protection for /dev/mem */
136 pgprot_t (*phys_mem_access_prot)(struct file *file,
137 unsigned long offset,
141 /* Idle loop for this platform, leave empty for default idle loop */
142 int (*idle_loop)(void);
144 /* Function to enable pmcs for this platform, called once per cpu. */
145 void (*enable_pmcs)(void);
148 extern int default_idle(void);
149 extern int native_idle(void);
151 extern struct machdep_calls ppc_md;
152 extern char cmd_line[COMMAND_LINE_SIZE];
154 #ifdef CONFIG_PPC_PMAC
156 * Power macintoshes have either a CUDA, PMU or SMU controlling
157 * system reset, power, NVRAM, RTC.
159 typedef enum sys_ctrler_kind {
160 SYS_CTRLER_UNKNOWN = 0,
165 extern sys_ctrler_t sys_ctrler;
167 #endif /* CONFIG_PPC_PMAC */
171 /* Functions to produce codes on the leds.
172 * The SRC code should be unique for the message category and should
173 * be limited to the lower 24 bits (the upper 8 are set by these funcs),
174 * and (for boot & dump) should be sorted numerically in the order
177 /* Print a boot progress message. */
178 void ppc64_boot_msg(unsigned int src, const char *msg);
179 /* Print a termination message (print only -- does not stop the kernel) */
180 void ppc64_terminate_msg(unsigned int src, const char *msg);
181 /* Print something that needs attention (device error, etc) */
182 void ppc64_attention_msg(unsigned int src, const char *msg);
183 /* Print a dump progress message. */
184 void ppc64_dump_msg(unsigned int src, const char *msg);
186 static inline void log_error(char *buf, unsigned int err_type, int fatal)
188 if (ppc_md.log_error)
189 ppc_md.log_error(buf, err_type, fatal);
192 #endif /* _PPC64_MACHDEP_H */
193 #endif /* __KERNEL__ */