include/asm-alpha/machvec.h

   1 #ifndef __ALPHA_MACHVEC_H
   2 #define __ALPHA_MACHVEC_H 1
   3
   4 #include <linux/config.h>
   5 #include <linux/types.h>
   6
   7 /*
   8  *      This file gets pulled in by asm/io.h from user space. We don't
   9  *      want most of this escaping.
  10  */
  11
  12 #ifdef __KERNEL__
  13
  14 /* The following structure vectors all of the I/O and IRQ manipulation
  15    from the generic kernel to the hardware specific backend.  */
  16
  17 struct task_struct;
  18 struct mm_struct;
  19 struct pt_regs;
  20 struct vm_area_struct;
  21 struct linux_hose_info;
  22
  23 struct alpha_machine_vector
  24 {
  25         /* This "belongs" down below with the rest of the runtime
  26            variables, but it is convenient for entry.S if these
  27            two slots are at the beginning of the struct.  */
  28         unsigned long hae_cache;
  29         unsigned long *hae_register;
  30
  31         int nr_irqs;
  32         int rtc_port;
  33         int max_asn;
  34         unsigned long max_dma_address;
  35         unsigned long mmu_context_mask;
  36         unsigned long irq_probe_mask;
  37         unsigned long iack_sc;
  38
  39         unsigned long (*mv_virt_to_bus)(void *);
  40         void * (*mv_bus_to_virt)(unsigned long);
  41
  42         unsigned int (*mv_inb)(unsigned long);
  43         unsigned int (*mv_inw)(unsigned long);
  44         unsigned int (*mv_inl)(unsigned long);
  45
  46         void (*mv_outb)(unsigned char, unsigned long);
  47         void (*mv_outw)(unsigned short, unsigned long);
  48         void (*mv_outl)(unsigned int, unsigned long);
  49
  50         unsigned long (*mv_readb)(unsigned long);
  51         unsigned long (*mv_readw)(unsigned long);
  52         unsigned long (*mv_readl)(unsigned long);
  53         unsigned long (*mv_readq)(unsigned long);
  54
  55         void (*mv_writeb)(unsigned char, unsigned long);
  56         void (*mv_writew)(unsigned short, unsigned long);
  57         void (*mv_writel)(unsigned int, unsigned long);
  58         void (*mv_writeq)(unsigned long, unsigned long);
  59
  60         unsigned long (*mv_dense_mem)(unsigned long);
  61
  62         int (*hose_read_config_byte)(u8, u8, u8, u8 *value,
  63                                      struct linux_hose_info *);
  64         int (*hose_read_config_word)(u8, u8, u8, u16 *value,
  65                                      struct linux_hose_info *);
  66         int (*hose_read_config_dword)(u8, u8, u8, u32 *value,
  67                                       struct linux_hose_info *);
  68
  69         int (*hose_write_config_byte)(u8, u8, u8, u8 value,
  70                                       struct linux_hose_info *);
  71         int (*hose_write_config_word)(u8, u8, u8, u16 value,
  72                                       struct linux_hose_info *);
  73         int (*hose_write_config_dword)(u8, u8, u8, u32 value,
  74                                        struct linux_hose_info *);
  75
  76         void (*mv_get_mmu_context)(struct task_struct *);
  77         void (*mv_flush_tlb_current)(struct mm_struct *);
  78         void (*mv_flush_tlb_other)(struct mm_struct *);
  79         void (*mv_flush_tlb_current_page)(struct mm_struct * mm,
  80                                           struct vm_area_struct *vma,
  81                                           unsigned long addr);
  82
  83         void (*update_irq_hw)(unsigned long, unsigned long, int);
  84         void (*ack_irq)(unsigned long);
  85         void (*device_interrupt)(unsigned long vector, struct pt_regs *regs);
  86         void (*machine_check)(u64 vector, u64 la, struct pt_regs *regs);
  87
  88         void (*init_arch)(unsigned long *, unsigned long *);
  89         void (*init_irq)(void);
  90         void (*init_pit)(void);
  91         void (*pci_fixup)(void);
  92         void (*kill_arch)(int, char *);
  93
  94         const char *vector_name;
  95
  96         /* System specific parameters.  */
  97         union {
  98             struct {
  99                 unsigned long gru_int_req_bits;
 100             } cia;
 101
 102             struct {
 103                 unsigned long gamma_bias;
 104             } t2;
 105         } sys;
 106
 107         /* Runtime variables it is handy to keep close.  */
 108         unsigned long dma_win_base;
 109         unsigned long dma_win_size;
 110         unsigned long sm_base_r1, sm_base_r2, sm_base_r3;
 111 };
 112
 113 extern struct alpha_machine_vector alpha_mv;
 114
 115 #ifdef CONFIG_ALPHA_GENERIC
 116 extern int alpha_using_srm;
 117 extern int alpha_use_srm_setup;
 118 #else
 119 #ifdef CONFIG_ALPHA_SRM
 120 #define alpha_using_srm 1
 121 #else
 122 #define alpha_using_srm 0
 123 #endif
 124 #if defined(CONFIG_ALPHA_SRM_SETUP)
 125 #define alpha_use_srm_setup 1
 126 #else
 127 #define alpha_use_srm_setup 0
 128 #endif
 129 #endif /* GENERIC */
 130
 131 #endif
 132 #endif /* __ALPHA_MACHVEC_H */