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