LXR linux/arch/alpha/include/asm/machvec.h

   1#ifndef __ALPHA_MACHVEC_H
   2#define __ALPHA_MACHVEC_H 1
   3
   4#include <linux/types.h>
   5
   6/*
   7 *      This file gets pulled in by asm/io.h from user space. We don't
   8 *      want most of this escaping.
   9 */
  10 
  11#ifdef __KERNEL__
  12
  13/* The following structure vectors all of the I/O and IRQ manipulation
  14   from the generic kernel to the hardware specific backend.  */
  15
  16struct task_struct;
  17struct mm_struct;
  18struct vm_area_struct;
  19struct linux_hose_info;
  20struct pci_dev;
  21struct pci_ops;
  22struct pci_controller;
  23struct _alpha_agp_info;
  24struct rtc_time;
  25
  26struct alpha_machine_vector
  27{
  28        /* This "belongs" down below with the rest of the runtime
  29           variables, but it is convenient for entry.S if these 
  30           two slots are at the beginning of the struct.  */
  31        unsigned long hae_cache;
  32        unsigned long *hae_register;
  33
  34        int nr_irqs;
  35        int rtc_port;
  36        int rtc_boot_cpu_only;
  37        unsigned int max_asn;
  38        unsigned long max_isa_dma_address;
  39        unsigned long irq_probe_mask;
  40        unsigned long iack_sc;
  41        unsigned long min_io_address;
  42        unsigned long min_mem_address;
  43        unsigned long pci_dac_offset;
  44
  45        void (*mv_pci_tbi)(struct pci_controller *hose,
  46                           dma_addr_t start, dma_addr_t end);
  47
  48        unsigned int (*mv_ioread8)(void __iomem *);
  49        unsigned int (*mv_ioread16)(void __iomem *);
  50        unsigned int (*mv_ioread32)(void __iomem *);
  51
  52        void (*mv_iowrite8)(u8, void __iomem *);
  53        void (*mv_iowrite16)(u16, void __iomem *);
  54        void (*mv_iowrite32)(u32, void __iomem *);
  55
  56        u8 (*mv_readb)(const volatile void __iomem *);
  57        u16 (*mv_readw)(const volatile void __iomem *);
  58        u32 (*mv_readl)(const volatile void __iomem *);
  59        u64 (*mv_readq)(const volatile void __iomem *);
  60
  61        void (*mv_writeb)(u8, volatile void __iomem *);
  62        void (*mv_writew)(u16, volatile void __iomem *);
  63        void (*mv_writel)(u32, volatile void __iomem *);
  64        void (*mv_writeq)(u64, volatile void __iomem *);
  65
  66        void __iomem *(*mv_ioportmap)(unsigned long);
  67        void __iomem *(*mv_ioremap)(unsigned long, unsigned long);
  68        void (*mv_iounmap)(volatile void __iomem *);
  69        int (*mv_is_ioaddr)(unsigned long);
  70        int (*mv_is_mmio)(const volatile void __iomem *);
  71
  72        void (*mv_switch_mm)(struct mm_struct *, struct mm_struct *,
  73                             struct task_struct *);
  74        void (*mv_activate_mm)(struct mm_struct *, struct mm_struct *);
  75
  76        void (*mv_flush_tlb_current)(struct mm_struct *);
  77        void (*mv_flush_tlb_current_page)(struct mm_struct * mm,
  78                                          struct vm_area_struct *vma,
  79                                          unsigned long addr);
  80
  81        void (*update_irq_hw)(unsigned long, unsigned long, int);
  82        void (*ack_irq)(unsigned long);
  83        void (*device_interrupt)(unsigned long vector);
  84        void (*machine_check)(unsigned long vector, unsigned long la);
  85
  86        void (*smp_callin)(void);
  87        void (*init_arch)(void);
  88        void (*init_irq)(void);
  89        void (*init_rtc)(void);
  90        void (*init_pci)(void);
  91        void (*kill_arch)(int);
  92
  93        u8 (*pci_swizzle)(struct pci_dev *, u8 *);
  94        int (*pci_map_irq)(const struct pci_dev *, u8, u8);
  95        struct pci_ops *pci_ops;
  96
  97        struct _alpha_agp_info *(*agp_info)(void);
  98
  99        const char *vector_name;
 100
 101        /* NUMA information */
 102        int (*pa_to_nid)(unsigned long);
 103        int (*cpuid_to_nid)(int);
 104        unsigned long (*node_mem_start)(int);
 105        unsigned long (*node_mem_size)(int);
 106
 107        /* System specific parameters.  */
 108        union {
 109            struct {
 110                unsigned long gru_int_req_bits;
 111            } cia;
 112
 113            struct {
 114                unsigned long gamma_bias;
 115            } t2;
 116
 117            struct {
 118                unsigned int route_tab;
 119            } sio;
 120        } sys;
 121};
 122
 123extern struct alpha_machine_vector alpha_mv;
 124
 125#ifdef CONFIG_ALPHA_GENERIC
 126extern int alpha_using_srm;
 127extern int alpha_using_qemu;
 128#else
 129# ifdef CONFIG_ALPHA_SRM
 130#  define alpha_using_srm 1
 131# else
 132#  define alpha_using_srm 0
 133# endif
 134# ifdef CONFIG_ALPHA_QEMU
 135#  define alpha_using_qemu 1
 136# else
 137#  define alpha_using_qemu 0
 138# endif
 139#endif /* GENERIC */
 140
 141#endif /* __KERNEL__ */
 142#endif /* __ALPHA_MACHVEC_H */
 143