1 #ifndef _ASM_POWERPC_MACHDEP_H
2 #define _ASM_POWERPC_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>
19 /* We export this macro for external modules like Alsa to know if
20 * ppc_md.feature_call is implemented or not
22 #define CONFIG_PPC_HAS_FEATURE_CALLS
33 void (*message_pass)(int target, int msg);
35 void (*kick_cpu)(int nr);
36 void (*setup_cpu)(int nr);
37 void (*take_timebase)(void);
38 void (*give_timebase)(void);
39 int (*cpu_enable)(unsigned int nr);
40 int (*cpu_disable)(void);
41 void (*cpu_die)(unsigned int nr);
42 int (*cpu_bootable)(unsigned int nr);
46 struct machdep_calls {
48 void (*hpte_invalidate)(unsigned long slot,
52 long (*hpte_updatepp)(unsigned long slot,
57 void (*hpte_updateboltedpp)(unsigned long newpp,
59 long (*hpte_insert)(unsigned long hpte_group,
63 unsigned long rflags);
64 long (*hpte_remove)(unsigned long hpte_group);
65 void (*flush_hash_range)(unsigned long number, int local);
67 /* special for kexec, to be called in real mode, linar mapping is
68 * destroyed as well */
69 void (*hpte_clear_all)(void);
71 void (*tce_build)(struct iommu_table * tbl,
75 enum dma_data_direction direction);
76 void (*tce_free)(struct iommu_table *tbl,
79 void (*tce_flush)(struct iommu_table *tbl);
80 void (*iommu_dev_setup)(struct pci_dev *dev);
81 void (*iommu_bus_setup)(struct pci_bus *bus);
82 void (*irq_bus_setup)(struct pci_bus *bus);
83 int (*set_dabr)(unsigned long dabr);
86 int (*probe)(int platform);
87 void (*setup_arch)(void);
88 void (*init_early)(void);
89 /* Optional, may be NULL. */
90 void (*show_cpuinfo)(struct seq_file *m);
91 void (*show_percpuinfo)(struct seq_file *m, int i);
93 void (*init_IRQ)(void);
94 int (*get_irq)(struct pt_regs *);
95 void (*cpu_irq_down)(int secondary);
98 /* Called after scanning the bus, before allocating resources */
99 void (*pcibios_fixup)(void);
100 int (*pci_probe_mode)(struct pci_bus *);
102 void (*restart)(char *cmd);
103 void (*power_off)(void);
105 void (*panic)(char *str);
106 void (*cpu_die)(void);
108 long (*time_init)(void); /* Optional, may be NULL */
110 int (*set_rtc_time)(struct rtc_time *);
111 void (*get_rtc_time)(struct rtc_time *);
112 unsigned long (*get_boot_time)(void);
113 unsigned char (*rtc_read_val)(int addr);
114 void (*rtc_write_val)(int addr, unsigned char val);
116 void (*calibrate_decr)(void);
118 void (*progress)(char *, unsigned short);
120 /* Interface for platform error logging */
121 void (*log_error)(char *buf, unsigned int err_type, int fatal);
123 unsigned char (*nvram_read_val)(int addr);
124 void (*nvram_write_val)(int addr, unsigned char val);
125 ssize_t (*nvram_write)(char *buf, size_t count, loff_t *index);
126 ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index);
127 ssize_t (*nvram_size)(void);
128 void (*nvram_sync)(void);
130 /* Exception handlers */
131 void (*system_reset_exception)(struct pt_regs *regs);
132 int (*machine_check_exception)(struct pt_regs *regs);
134 /* Motherboard/chipset features. This is a kind of general purpose
135 * hook used to control some machine specific features (like reset
136 * lines, chip power control, etc...).
138 long (*feature_call)(unsigned int feature, ...);
140 /* Check availability of legacy devices like i8042 */
141 int (*check_legacy_ioport)(unsigned int baseport);
143 /* Get legacy PCI/IDE interrupt mapping */
144 int (*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel);
146 /* Get access protection for /dev/mem */
147 pgprot_t (*phys_mem_access_prot)(struct file *file,
152 /* Idle loop for this platform, leave empty for default idle loop */
153 void (*idle_loop)(void);
155 /* Function to enable performance monitor counters for this
156 platform, called once per cpu. */
157 void (*enable_pmcs)(void);
159 #ifdef CONFIG_PPC32 /* XXX for now */
160 /* A general init function, called by ppc_init in init/main.c.
165 void (*power_save)(void);
167 void (*heartbeat)(void);
168 unsigned long heartbeat_reset;
169 unsigned long heartbeat_count;
171 void (*setup_io_mappings)(void);
173 void (*early_serial_map)(void);
174 void (*kgdb_map_scc)(void);
177 * optional PCI "hooks"
180 /* Called after PPC generic resource fixup to perform
181 machine specific fixups */
182 void (*pcibios_fixup_resources)(struct pci_dev *);
184 /* Called for each PCI bus in the system when it's probed */
185 void (*pcibios_fixup_bus)(struct pci_bus *);
187 /* Called when pci_enable_device() is called (initial=0) or
188 * when a device with no assigned resource is found (initial=1).
189 * Returns 0 to allow assignment/enabling of the device. */
190 int (*pcibios_enable_device_hook)(struct pci_dev *, int initial);
192 /* For interrupt routing */
193 unsigned char (*pci_swizzle)(struct pci_dev *, unsigned char *);
194 int (*pci_map_irq)(struct pci_dev *, unsigned char, unsigned char);
196 /* Called in indirect_* to avoid touching devices */
197 int (*pci_exclude_device)(unsigned char, unsigned char);
199 /* Called at then very end of pcibios_init() */
200 void (*pcibios_after_init)(void);
202 /* this is for modules, since _machine can be a define -- Cort */
206 /* Called to shutdown machine specific hardware not already controlled
208 * XXX Should we move this one out of kexec scope?
210 void (*machine_shutdown)(void);
212 /* Called to do the minimal shutdown needed to run a kexec'd kernel
213 * to run successfully.
214 * XXX Should we move this one out of kexec scope?
216 void (*machine_crash_shutdown)(void);
218 /* Called to do what every setup is needed on image and the
219 * reboot code buffer. Returns 0 on success.
220 * Provide your own (maybe dummy) implementation if your platform
221 * claims to support kexec.
223 int (*machine_kexec_prepare)(struct kimage *image);
225 /* Called to handle any machine specific cleanup on image */
226 void (*machine_kexec_cleanup)(struct kimage *image);
228 /* Called to perform the _real_ kexec.
229 * Do NOT allocate memory or fail here. We are past the point of
232 void (*machine_kexec)(struct kimage *image);
233 #endif /* CONFIG_KEXEC */
234 #endif /* CONFIG_PPC32 */
237 extern void default_idle(void);
238 extern void native_idle(void);
240 extern struct machdep_calls ppc_md;
241 extern char cmd_line[COMMAND_LINE_SIZE];
243 #ifdef CONFIG_PPC_PMAC
245 * Power macintoshes have either a CUDA, PMU or SMU controlling
246 * system reset, power, NVRAM, RTC.
248 typedef enum sys_ctrler_kind {
249 SYS_CTRLER_UNKNOWN = 0,
254 extern sys_ctrler_t sys_ctrler;
256 #endif /* CONFIG_PPC_PMAC */
258 extern void setup_pci_ptrs(void);
261 /* Poor default implementations */
262 extern void __devinit smp_generic_give_timebase(void);
263 extern void __devinit smp_generic_take_timebase(void);
264 #endif /* CONFIG_SMP */
267 /* Functions to produce codes on the leds.
268 * The SRC code should be unique for the message category and should
269 * be limited to the lower 24 bits (the upper 8 are set by these funcs),
270 * and (for boot & dump) should be sorted numerically in the order
273 /* Print a boot progress message. */
274 void ppc64_boot_msg(unsigned int src, const char *msg);
275 /* Print a termination message (print only -- does not stop the kernel) */
276 void ppc64_terminate_msg(unsigned int src, const char *msg);
278 static inline void log_error(char *buf, unsigned int err_type, int fatal)
280 if (ppc_md.log_error)
281 ppc_md.log_error(buf, err_type, fatal);
284 #endif /* __KERNEL__ */
285 #endif /* _ASM_POWERPC_MACHDEP_H */