include/asm-ppc/machdep.h

   1 #ifdef __KERNEL__
   2 #ifndef _PPC_MACHDEP_H
   3 #define _PPC_MACHDEP_H
   4
   5 #include <linux/config.h>
   6 #include <linux/init.h>
   7
   8 #include <asm/setup.h>
   9
  10 #ifdef CONFIG_APUS
  11 #include <asm-m68k/machdep.h>
  12 #endif
  13
  14 struct pt_regs;
  15 struct pci_bus;
  16 struct pci_dev;
  17 struct seq_file;
  18
  19 /* We export this macro for external modules like Alsa to know if
  20  * ppc_md.feature_call is implemented or not
  21  */
  22 #define CONFIG_PPC_HAS_FEATURE_CALLS
  23
  24 struct machdep_calls {
  25         void            (*setup_arch)(void);
  26         /* Optional, may be NULL. */
  27         int             (*show_cpuinfo)(struct seq_file *m);
  28         int             (*show_percpuinfo)(struct seq_file *m, int i);
  29         /* Optional, may be NULL. */
  30         unsigned int    (*irq_canonicalize)(unsigned int irq);
  31         void            (*init_IRQ)(void);
  32         int             (*get_irq)(struct pt_regs *);
  33
  34         /* A general init function, called by ppc_init in init/main.c.
  35            May be NULL. */
  36         void            (*init)(void);
  37
  38         void            (*restart)(char *cmd);
  39         void            (*power_off)(void);
  40         void            (*halt)(void);
  41
  42         void            (*idle)(void);
  43         void            (*power_save)(void);
  44
  45         long            (*time_init)(void); /* Optional, may be NULL */
  46         int             (*set_rtc_time)(unsigned long nowtime);
  47         unsigned long   (*get_rtc_time)(void);
  48         unsigned char   (*rtc_read_val)(int addr);
  49         void            (*rtc_write_val)(int addr, unsigned char val);
  50         void            (*calibrate_decr)(void);
  51
  52         void            (*heartbeat)(void);
  53         unsigned long   heartbeat_reset;
  54         unsigned long   heartbeat_count;
  55
  56         unsigned long   (*find_end_of_memory)(void);
  57         void            (*setup_io_mappings)(void);
  58
  59         void            (*progress)(char *, unsigned short);
  60         void            (*kgdb_map_scc)(void);
  61
  62         unsigned char   (*nvram_read_val)(int addr);
  63         void            (*nvram_write_val)(int addr, unsigned char val);
  64         void            (*nvram_sync)(void);
  65
  66         /*
  67          * optional PCI "hooks"
  68          */
  69
  70         /* Called after scanning the bus, before allocating resources */
  71         void (*pcibios_fixup)(void);
  72
  73         /* Called after PPC generic resource fixup to perform
  74            machine specific fixups */
  75         void (*pcibios_fixup_resources)(struct pci_dev *);
  76
  77         /* Called for each PCI bus in the system when it's probed */
  78         void (*pcibios_fixup_bus)(struct pci_bus *);
  79
  80         /* Called when pci_enable_device() is called (initial=0) or
  81          * when a device with no assigned resource is found (initial=1).
  82          * Returns 0 to allow assignment/enabling of the device. */
  83         int  (*pcibios_enable_device_hook)(struct pci_dev *, int initial);
  84
  85         /* For interrupt routing */
  86         unsigned char (*pci_swizzle)(struct pci_dev *, unsigned char *);
  87         int (*pci_map_irq)(struct pci_dev *, unsigned char, unsigned char);
  88
  89         /* Called in indirect_* to avoid touching devices */
  90         int (*pci_exclude_device)(unsigned char, unsigned char);
  91
  92         /* Called at then very end of pcibios_init() */
  93         void (*pcibios_after_init)(void);
  94
  95         /* this is for modules, since _machine can be a define -- Cort */
  96         int ppc_machine;
  97
  98         /* Motherboard/chipset features. This is a kind of general purpose
  99          * hook used to control some machine specific features (like reset
 100          * lines, chip power control, etc...).
 101          */
 102         long (*feature_call)(unsigned int feature, ...);
 103
 104 #ifdef CONFIG_SMP
 105         /* functions for dealing with other cpus */
 106         struct smp_ops_t *smp_ops;
 107 #endif /* CONFIG_SMP */
 108 };
 109
 110 extern struct machdep_calls ppc_md;
 111 extern char cmd_line[COMMAND_LINE_SIZE];
 112
 113 extern void setup_pci_ptrs(void);
 114
 115 /*
 116  * Power macintoshes have either a CUDA or a PMU controlling
 117  * system reset, power, NVRAM, RTC.
 118  */
 119 typedef enum sys_ctrler_kind {
 120         SYS_CTRLER_UNKNOWN = 0,
 121         SYS_CTRLER_CUDA = 1,
 122         SYS_CTRLER_PMU = 2,
 123 } sys_ctrler_t;
 124
 125 extern sys_ctrler_t sys_ctrler;
 126
 127 #ifdef CONFIG_SMP
 128 struct smp_ops_t {
 129         void  (*message_pass)(int target, int msg, unsigned long data, int wait);
 130         int   (*probe)(void);
 131         void  (*kick_cpu)(int nr);
 132         void  (*setup_cpu)(int nr);
 133         void  (*space_timers)(int nr);
 134         void  (*take_timebase)(void);
 135         void  (*give_timebase)(void);
 136 };
 137
 138 /* Poor default implementations */
 139 extern void __devinit smp_generic_give_timebase(void);
 140 extern void __devinit smp_generic_take_timebase(void);
 141 #endif /* CONFIG_SMP */
 142
 143 #endif /* _PPC_MACHDEP_H */
 144 #endif /* __KERNEL__ */