#ifdef __KERNEL__ #ifndef _PPC_MACHDEP_H #define _PPC_MACHDEP_H #include <linux/init.h> #include <linux/kexec.h> #include <asm/setup.h> #include <asm/page.h> struct pt_regs; struct pci_bus; struct pci_dev; struct seq_file; struct file; /* * This is for compatibility with ARCH=powerpc. */ #define machine_is(x) __MACHINE_IS_##x #define __MACHINE_IS_powermac 0 #define __MACHINE_IS_chrp 0 #ifdef CONFIG_PPC_PREP #define __MACHINE_IS_prep 1 #else #define __MACHINE_IS_prep 0 #endif /* We export this macro for external modules like Alsa to know if * ppc_md.feature_call is implemented or not */ #define CONFIG_PPC_HAS_FEATURE_CALLS struct machdep_calls { void (*setup_arch)(void); /* Optional, may be NULL. */ int (*show_cpuinfo)(struct seq_file *m); int (*show_percpuinfo)(struct seq_file *m, int i); /* Optional, may be NULL. */ unsigned int (*irq_canonicalize)(unsigned int irq); void (*init_IRQ)(void); int (*get_irq)(void); /* A general init function, called by ppc_init in init/main.c. May be NULL. DEPRECATED ! */ void (*init)(void); /* For compatibility with merged platforms */ void (*init_early)(void); void (*restart)(char *cmd); void (*power_off)(void); void (*halt)(void); void (*idle_loop)(void); void (*power_save)(void); long (*time_init)(void); /* Optional, may be NULL */ int (*set_rtc_time)(unsigned long nowtime); unsigned long (*get_rtc_time)(void); unsigned char (*rtc_read_val)(int addr); void (*rtc_write_val)(int addr, unsigned char val); void (*calibrate_decr)(void); void (*heartbeat)(void); unsigned long heartbeat_reset; unsigned long heartbeat_count; unsigned long (*find_end_of_memory)(void); void (*setup_io_mappings)(void); void (*early_serial_map)(void); void (*progress)(char *, unsigned short); void (*kgdb_map_scc)(void); unsigned char (*nvram_read_val)(int addr); void (*nvram_write_val)(int addr, unsigned char val); void (*nvram_sync)(void); /* * optional PCI "hooks" */ /* Called after scanning the bus, before allocating resources */ void (*pcibios_fixup)(void); /* Called after PPC generic resource fixup to perform machine specific fixups */ void (*pcibios_fixup_resources)(struct pci_dev *); /* Called for each PCI bus in the system when it's probed */ void (*pcibios_fixup_bus)(struct pci_bus *); /* Called when pci_enable_device() is called (initial=0) or * when a device with no assigned resource is found (initial=1). * Returns 0 to allow assignment/enabling of the device. */ int (*pcibios_enable_device_hook)(struct pci_dev *, int initial); /* For interrupt routing */ unsigned char (*pci_swizzle)(struct pci_dev *, unsigned char *); int (*pci_map_irq)(struct pci_dev *, unsigned char, unsigned char); /* Called in indirect_* to avoid touching devices */ int (*pci_exclude_device)(unsigned char, unsigned char); /* Called at then very end of pcibios_init() */ void (*pcibios_after_init)(void); /* Get access protection for /dev/mem */ pgprot_t (*phys_mem_access_prot)(struct file *file, unsigned long pfn, unsigned long size, pgprot_t vma_prot); /* Motherboard/chipset features. This is a kind of general purpose * hook used to control some machine specific features (like reset * lines, chip power control, etc...). */ long (*feature_call)(unsigned int feature, ...); #ifdef CONFIG_SMP /* functions for dealing with other cpus */ struct smp_ops_t *smp_ops; #endif /* CONFIG_SMP */ #ifdef CONFIG_KEXEC /* Called to shutdown machine specific hardware not already controlled * by other drivers. * XXX Should we move this one out of kexec scope? */ void (*machine_shutdown)(void); /* Called to do the minimal shutdown needed to run a kexec'd kernel * to run successfully. * XXX Should we move this one out of kexec scope? */ void (*machine_crash_shutdown)(void); /* Called to do what every setup is needed on image and the * reboot code buffer. Returns 0 on success. * Provide your own (maybe dummy) implementation if your platform * claims to support kexec. */ int (*machine_kexec_prepare)(struct kimage *image); /* Called to handle any machine specific cleanup on image */ void (*machine_kexec_cleanup)(struct kimage *image); /* Called to perform the _real_ kexec. * Do NOT allocate memory or fail here. We are past the point of * no return. */ void (*machine_kexec)(struct kimage *image); #endif /* CONFIG_KEXEC */ }; extern struct machdep_calls ppc_md; extern char cmd_line[COMMAND_LINE_SIZE]; extern void setup_pci_ptrs(void); #ifdef CONFIG_SMP struct smp_ops_t { void (*message_pass)(int target, int msg); int (*probe)(void); void (*kick_cpu)(int nr); void (*setup_cpu)(int nr); void (*space_timers)(int nr); void (*take_timebase)(void); void (*give_timebase)(void); }; /* Poor default implementations */ extern void __devinit smp_generic_give_timebase(void); extern void __devinit smp_generic_take_timebase(void); #endif /* CONFIG_SMP */ #endif /* _PPC_MACHDEP_H */ #endif /* __KERNEL__ */