1 #ifndef _PPC64_MACHDEP_H
2 #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>
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);
85 int (*probe)(int platform);
86 void (*setup_arch)(void);
87 void (*init_early)(void);
88 /* Optional, may be NULL. */
89 void (*show_cpuinfo)(struct seq_file *m);
90 void (*show_percpuinfo)(struct seq_file *m, int i);
92 void (*init_IRQ)(void);
93 int (*get_irq)(struct pt_regs *);
94 void (*cpu_irq_down)(int secondary);
97 /* Called after scanning the bus, before allocating resources */
98 void (*pcibios_fixup)(void);
99 int (*pci_probe_mode)(struct pci_bus *);
101 void (*restart)(char *cmd);
102 void (*power_off)(void);
104 void (*panic)(char *str);
105 void (*cpu_die)(void);
107 long (*time_init)(void); /* Optional, may be NULL */
109 int (*set_rtc_time)(struct rtc_time *);
110 void (*get_rtc_time)(struct rtc_time *);
111 unsigned long (*get_boot_time)(void);
112 unsigned char (*rtc_read_val)(int addr);
113 void (*rtc_write_val)(int addr, unsigned char val);
115 void (*calibrate_decr)(void);
117 void (*progress)(char *, unsigned short);
119 /* Interface for platform error logging */
120 void (*log_error)(char *buf, unsigned int err_type, int fatal);
122 ssize_t (*nvram_write)(char *buf, size_t count, loff_t *index);
123 ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index);
124 ssize_t (*nvram_size)(void);
125 void (*nvram_sync)(void);
127 /* Exception handlers */
128 void (*system_reset_exception)(struct pt_regs *regs);
129 int (*machine_check_exception)(struct pt_regs *regs);
131 /* Motherboard/chipset features. This is a kind of general purpose
132 * hook used to control some machine specific features (like reset
133 * lines, chip power control, etc...).
135 long (*feature_call)(unsigned int feature, ...);
137 /* Check availability of legacy devices like i8042 */
138 int (*check_legacy_ioport)(unsigned int baseport);
140 /* Get legacy PCI/IDE interrupt mapping */
141 int (*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel);
143 /* Get access protection for /dev/mem */
144 pgprot_t (*phys_mem_access_prot)(struct file *file,
145 unsigned long offset,
149 /* Idle loop for this platform, leave empty for default idle loop */
150 void (*idle_loop)(void);
152 /* Function to enable performance monitor counters for this
153 platform, called once per cpu. */
154 void (*enable_pmcs)(void);
156 #ifdef CONFIG_PPC32 /* XXX for now */
157 /* A general init function, called by ppc_init in init/main.c.
162 void (*power_save)(void);
164 void (*heartbeat)(void);
165 unsigned long heartbeat_reset;
166 unsigned long heartbeat_count;
168 unsigned long (*find_end_of_memory)(void);
169 void (*setup_io_mappings)(void);
171 void (*early_serial_map)(void);
172 void (*kgdb_map_scc)(void);
174 unsigned char (*nvram_read_val)(int addr);
175 void (*nvram_write_val)(int addr, unsigned char val);
178 * optional PCI "hooks"
181 /* Called after PPC generic resource fixup to perform
182 machine specific fixups */
183 void (*pcibios_fixup_resources)(struct pci_dev *);
185 /* Called for each PCI bus in the system when it's probed */
186 void (*pcibios_fixup_bus)(struct pci_bus *);
188 /* Called when pci_enable_device() is called (initial=0) or
189 * when a device with no assigned resource is found (initial=1).
190 * Returns 0 to allow assignment/enabling of the device. */
191 int (*pcibios_enable_device_hook)(struct pci_dev *, int initial);
193 /* For interrupt routing */
194 unsigned char (*pci_swizzle)(struct pci_dev *, unsigned char *);
195 int (*pci_map_irq)(struct pci_dev *, unsigned char, unsigned char);
197 /* Called in indirect_* to avoid touching devices */
198 int (*pci_exclude_device)(unsigned char, unsigned char);
200 /* Called at then very end of pcibios_init() */
201 void (*pcibios_after_init)(void);
203 /* this is for modules, since _machine can be a define -- Cort */
207 /* Called to shutdown machine specific hardware not already controlled
209 * XXX Should we move this one out of kexec scope?
211 void (*machine_shutdown)(void);
213 /* Called to do the minimal shutdown needed to run a kexec'd kernel
214 * to run successfully.
215 * XXX Should we move this one out of kexec scope?
217 void (*machine_crash_shutdown)(void);
219 /* Called to do what every setup is needed on image and the
220 * reboot code buffer. Returns 0 on success.
221 * Provide your own (maybe dummy) implementation if your platform
222 * claims to support kexec.
224 int (*machine_kexec_prepare)(struct kimage *image);
226 /* Called to handle any machine specific cleanup on image */
227 void (*machine_kexec_cleanup)(struct kimage *image);
229 /* Called to perform the _real_ kexec.
230 * Do NOT allocate memory or fail here. We are past the point of
233 void (*machine_kexec)(struct kimage *image);
234 #endif /* CONFIG_KEXEC */
235 #endif /* CONFIG_PPC32 */
238 extern void default_idle(void);
239 extern void native_idle(void);
241 extern struct machdep_calls ppc_md;
242 extern char cmd_line[COMMAND_LINE_SIZE];
244 #ifdef CONFIG_PPC_PMAC
246 * Power macintoshes have either a CUDA, PMU or SMU controlling
247 * system reset, power, NVRAM, RTC.
249 typedef enum sys_ctrler_kind {
250 SYS_CTRLER_UNKNOWN = 0,
255 extern sys_ctrler_t sys_ctrler;
257 #endif /* CONFIG_PPC_PMAC */
259 extern void setup_pci_ptrs(void);
262 /* Poor default implementations */
263 extern void __devinit smp_generic_give_timebase(void);
264 extern void __devinit smp_generic_take_timebase(void);
265 #endif /* CONFIG_SMP */
268 /* Functions to produce codes on the leds.
269 * The SRC code should be unique for the message category and should
270 * be limited to the lower 24 bits (the upper 8 are set by these funcs),
271 * and (for boot & dump) should be sorted numerically in the order
274 /* Print a boot progress message. */
275 void ppc64_boot_msg(unsigned int src, const char *msg);
276 /* Print a termination message (print only -- does not stop the kernel) */
277 void ppc64_terminate_msg(unsigned int src, const char *msg);
279 static inline void log_error(char *buf, unsigned int err_type, int fatal)
281 if (ppc_md.log_error)
282 ppc_md.log_error(buf, err_type, fatal);
285 #endif /* __KERNEL__ */
286 #endif /* _PPC64_MACHDEP_H */