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 #include <asm/page.h>
  10
  11 #ifdef CONFIG_APUS
  12 #include <asm-m68k/machdep.h>
  13 #endif
  14
  15 struct pt_regs;
  16 struct pci_bus;
  17 struct pci_dev;
  18 struct seq_file;
  19 struct file;
  20
  21 /* We export this macro for external modules like Alsa to know if
  22  * ppc_md.feature_call is implemented or not
  23  */
  24 #define CONFIG_PPC_HAS_FEATURE_CALLS
  25
  26 struct machdep_calls {
  27         void            (*setup_arch)(void);
  28         /* Optional, may be NULL. */
  29         int             (*show_cpuinfo)(struct seq_file *m);
  30         int             (*show_percpuinfo)(struct seq_file *m, int i);
  31         /* Optional, may be NULL. */
  32         unsigned int    (*irq_canonicalize)(unsigned int irq);
  33         void            (*init_IRQ)(void);
  34         int             (*get_irq)(struct pt_regs *);
  35
  36         /* A general init function, called by ppc_init in init/main.c.
  37            May be NULL. */
  38         void            (*init)(void);
  39
  40         void            (*restart)(char *cmd);
  41         void            (*power_off)(void);
  42         void            (*halt)(void);
  43
  44         void            (*idle)(void);
  45         void            (*power_save)(void);
  46
  47         long            (*time_init)(void); /* Optional, may be NULL */
  48         int             (*set_rtc_time)(unsigned long nowtime);
  49         unsigned long   (*get_rtc_time)(void);
  50         unsigned char   (*rtc_read_val)(int addr);
  51         void            (*rtc_write_val)(int addr, unsigned char val);
  52         void            (*calibrate_decr)(void);
  53
  54         void            (*heartbeat)(void);
  55         unsigned long   heartbeat_reset;
  56         unsigned long   heartbeat_count;
  57
  58         unsigned long   (*find_end_of_memory)(void);
  59         void            (*setup_io_mappings)(void);
  60
  61         void            (*early_serial_map)(void);
  62         void            (*progress)(char *, unsigned short);
  63         void            (*kgdb_map_scc)(void);
  64
  65         unsigned char   (*nvram_read_val)(int addr);
  66         void            (*nvram_write_val)(int addr, unsigned char val);
  67         void            (*nvram_sync)(void);
  68
  69         /*
  70          * optional PCI "hooks"
  71          */
  72
  73         /* Called after scanning the bus, before allocating resources */
  74         void (*pcibios_fixup)(void);
  75
  76         /* Called after PPC generic resource fixup to perform
  77            machine specific fixups */
  78         void (*pcibios_fixup_resources)(struct pci_dev *);
  79
  80         /* Called for each PCI bus in the system when it's probed */
  81         void (*pcibios_fixup_bus)(struct pci_bus *);
  82
  83         /* Called when pci_enable_device() is called (initial=0) or
  84          * when a device with no assigned resource is found (initial=1).
  85          * Returns 0 to allow assignment/enabling of the device. */
  86         int  (*pcibios_enable_device_hook)(struct pci_dev *, int initial);
  87
  88         /* For interrupt routing */
  89         unsigned char (*pci_swizzle)(struct pci_dev *, unsigned char *);
  90         int (*pci_map_irq)(struct pci_dev *, unsigned char, unsigned char);
  91
  92         /* Called in indirect_* to avoid touching devices */
  93         int (*pci_exclude_device)(unsigned char, unsigned char);
  94
  95         /* Called at then very end of pcibios_init() */
  96         void (*pcibios_after_init)(void);
  97
  98         /* Get access protection for /dev/mem */
  99         pgprot_t        (*phys_mem_access_prot)(struct file *file,
 100                                                 unsigned long offset,
 101                                                 unsigned long size,
 102                                                 pgprot_t vma_prot);
 103
 104         /* this is for modules, since _machine can be a define -- Cort */
 105         int ppc_machine;
 106
 107         /* Motherboard/chipset features. This is a kind of general purpose
 108          * hook used to control some machine specific features (like reset
 109          * lines, chip power control, etc...).
 110          */
 111         long (*feature_call)(unsigned int feature, ...);
 112
 113 #ifdef CONFIG_SMP
 114         /* functions for dealing with other cpus */
 115         struct smp_ops_t *smp_ops;
 116 #endif /* CONFIG_SMP */
 117 };
 118
 119 extern struct machdep_calls ppc_md;
 120 extern char cmd_line[COMMAND_LINE_SIZE];
 121
 122 extern void setup_pci_ptrs(void);
 123
 124 /*
 125  * Power macintoshes have either a CUDA or a PMU controlling
 126  * system reset, power, NVRAM, RTC.
 127  */
 128 typedef enum sys_ctrler_kind {
 129         SYS_CTRLER_UNKNOWN = 0,
 130         SYS_CTRLER_CUDA = 1,
 131         SYS_CTRLER_PMU = 2,
 132         SYS_CTRLER_SMU = 3,
 133 } sys_ctrler_t;
 134
 135 extern sys_ctrler_t sys_ctrler;
 136
 137 #ifdef CONFIG_SMP
 138 struct smp_ops_t {
 139         void  (*message_pass)(int target, int msg, unsigned long data, int wait);
 140         int   (*probe)(void);
 141         void  (*kick_cpu)(int nr);
 142         void  (*setup_cpu)(int nr);
 143         void  (*space_timers)(int nr);
 144         void  (*take_timebase)(void);
 145         void  (*give_timebase)(void);
 146 };
 147
 148 /* Poor default implementations */
 149 extern void __devinit smp_generic_give_timebase(void);
 150 extern void __devinit smp_generic_take_timebase(void);
 151 #endif /* CONFIG_SMP */
 152
 153 #endif /* _PPC_MACHDEP_H */
 154 #endif /* __KERNEL__ */