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
36 void (*message_pass)(int target, int msg);
38 void (*kick_cpu)(int nr);
39 void (*setup_cpu)(int nr);
40 void (*take_timebase)(void);
41 void (*give_timebase)(void);
42 int (*cpu_enable)(unsigned int nr);
43 int (*cpu_disable)(void);
44 void (*cpu_die)(unsigned int nr);
45 int (*cpu_bootable)(unsigned int nr);
49 struct machdep_calls {
51 void (*hpte_invalidate)(unsigned long slot,
55 long (*hpte_updatepp)(unsigned long slot,
60 void (*hpte_updateboltedpp)(unsigned long newpp,
63 long (*hpte_insert)(unsigned long hpte_group,
69 long (*hpte_remove)(unsigned long hpte_group);
70 void (*flush_hash_range)(unsigned long number, int local);
72 /* special for kexec, to be called in real mode, linar mapping is
73 * destroyed as well */
74 void (*hpte_clear_all)(void);
76 void (*tce_build)(struct iommu_table * tbl,
80 enum dma_data_direction direction);
81 void (*tce_free)(struct iommu_table *tbl,
84 void (*tce_flush)(struct iommu_table *tbl);
85 void (*iommu_dev_setup)(struct pci_dev *dev);
86 void (*iommu_bus_setup)(struct pci_bus *bus);
87 void (*irq_bus_setup)(struct pci_bus *bus);
90 int (*probe)(int platform);
91 void (*setup_arch)(void);
92 void (*init_early)(void);
93 /* Optional, may be NULL. */
94 void (*show_cpuinfo)(struct seq_file *m);
95 void (*show_percpuinfo)(struct seq_file *m, int i);
97 void (*init_IRQ)(void);
98 int (*get_irq)(struct pt_regs *);
100 void (*kexec_cpu_down)(int crash_shutdown, int secondary);
104 /* Called after scanning the bus, before allocating resources */
105 void (*pcibios_fixup)(void);
106 int (*pci_probe_mode)(struct pci_bus *);
108 void (*restart)(char *cmd);
109 void (*power_off)(void);
111 void (*panic)(char *str);
112 void (*cpu_die)(void);
114 long (*time_init)(void); /* Optional, may be NULL */
116 int (*set_rtc_time)(struct rtc_time *);
117 void (*get_rtc_time)(struct rtc_time *);
118 unsigned long (*get_boot_time)(void);
119 unsigned char (*rtc_read_val)(int addr);
120 void (*rtc_write_val)(int addr, unsigned char val);
122 void (*calibrate_decr)(void);
124 void (*progress)(char *, unsigned short);
126 /* Interface for platform error logging */
127 void (*log_error)(char *buf, unsigned int err_type, int fatal);
129 unsigned char (*nvram_read_val)(int addr);
130 void (*nvram_write_val)(int addr, unsigned char val);
131 ssize_t (*nvram_write)(char *buf, size_t count, loff_t *index);
132 ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index);
133 ssize_t (*nvram_size)(void);
134 void (*nvram_sync)(void);
136 /* Exception handlers */
137 int (*system_reset_exception)(struct pt_regs *regs);
138 int (*machine_check_exception)(struct pt_regs *regs);
140 /* Motherboard/chipset features. This is a kind of general purpose
141 * hook used to control some machine specific features (like reset
142 * lines, chip power control, etc...).
144 long (*feature_call)(unsigned int feature, ...);
146 /* Check availability of legacy devices like i8042 */
147 int (*check_legacy_ioport)(unsigned int baseport);
149 /* Get legacy PCI/IDE interrupt mapping */
150 int (*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel);
152 /* Get access protection for /dev/mem */
153 pgprot_t (*phys_mem_access_prot)(struct file *file,
158 /* Idle loop for this platform, leave empty for default idle loop */
159 void (*idle_loop)(void);
161 /* Function to enable performance monitor counters for this
162 platform, called once per cpu. */
163 void (*enable_pmcs)(void);
165 /* Set DABR for this platform, leave empty for default implemenation */
166 int (*set_dabr)(unsigned long dabr);
168 #ifdef CONFIG_PPC32 /* XXX for now */
169 /* A general init function, called by ppc_init in init/main.c.
174 void (*power_save)(void);
176 void (*heartbeat)(void);
177 unsigned long heartbeat_reset;
178 unsigned long heartbeat_count;
180 void (*setup_io_mappings)(void);
182 void (*early_serial_map)(void);
183 void (*kgdb_map_scc)(void);
186 * optional PCI "hooks"
189 /* Called after PPC generic resource fixup to perform
190 machine specific fixups */
191 void (*pcibios_fixup_resources)(struct pci_dev *);
193 /* Called for each PCI bus in the system when it's probed */
194 void (*pcibios_fixup_bus)(struct pci_bus *);
196 /* Called when pci_enable_device() is called (initial=0) or
197 * when a device with no assigned resource is found (initial=1).
198 * Returns 0 to allow assignment/enabling of the device. */
199 int (*pcibios_enable_device_hook)(struct pci_dev *, int initial);
201 /* For interrupt routing */
202 unsigned char (*pci_swizzle)(struct pci_dev *, unsigned char *);
203 int (*pci_map_irq)(struct pci_dev *, unsigned char, unsigned char);
205 /* Called in indirect_* to avoid touching devices */
206 int (*pci_exclude_device)(unsigned char, unsigned char);
208 /* Called at then very end of pcibios_init() */
209 void (*pcibios_after_init)(void);
211 /* this is for modules, since _machine can be a define -- Cort */
213 #endif /* CONFIG_PPC32 */
215 /* Called to shutdown machine specific hardware not already controlled
218 void (*machine_shutdown)(void);
221 /* Called to do the minimal shutdown needed to run a kexec'd kernel
222 * to run successfully.
223 * XXX Should we move this one out of kexec scope?
225 void (*machine_crash_shutdown)(struct pt_regs *regs);
227 /* Called to do what every setup is needed on image and the
228 * reboot code buffer. Returns 0 on success.
229 * Provide your own (maybe dummy) implementation if your platform
230 * claims to support kexec.
232 int (*machine_kexec_prepare)(struct kimage *image);
234 /* Called to handle any machine specific cleanup on image */
235 void (*machine_kexec_cleanup)(struct kimage *image);
237 /* Called to perform the _real_ kexec.
238 * Do NOT allocate memory or fail here. We are past the point of
241 void (*machine_kexec)(struct kimage *image);
242 #endif /* CONFIG_KEXEC */
245 extern void default_idle(void);
246 extern void native_idle(void);
248 extern struct machdep_calls ppc_md;
249 extern char cmd_line[COMMAND_LINE_SIZE];
251 #ifdef CONFIG_PPC_PMAC
253 * Power macintoshes have either a CUDA, PMU or SMU controlling
254 * system reset, power, NVRAM, RTC.
256 typedef enum sys_ctrler_kind {
257 SYS_CTRLER_UNKNOWN = 0,
262 extern sys_ctrler_t sys_ctrler;
264 #endif /* CONFIG_PPC_PMAC */
266 extern void setup_pci_ptrs(void);
269 /* Poor default implementations */
270 extern void __devinit smp_generic_give_timebase(void);
271 extern void __devinit smp_generic_take_timebase(void);
272 #endif /* CONFIG_SMP */
275 /* Functions to produce codes on the leds.
276 * The SRC code should be unique for the message category and should
277 * be limited to the lower 24 bits (the upper 8 are set by these funcs),
278 * and (for boot & dump) should be sorted numerically in the order
281 /* Print a boot progress message. */
282 void ppc64_boot_msg(unsigned int src, const char *msg);
283 /* Print a termination message (print only -- does not stop the kernel) */
284 void ppc64_terminate_msg(unsigned int src, const char *msg);
286 static inline void log_error(char *buf, unsigned int err_type, int fatal)
288 if (ppc_md.log_error)
289 ppc_md.log_error(buf, err_type, fatal);
292 #endif /* __KERNEL__ */
293 #endif /* _ASM_POWERPC_MACHDEP_H */