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

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __ALPHA_MACHVEC_H
   3#define __ALPHA_MACHVEC_H 1
   4
   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
  17struct task_struct;
  18struct mm_struct;
  19struct vm_area_struct;
  20struct linux_hose_info;
  21struct pci_dev;
  22struct pci_ops;
  23struct pci_controller;
  24struct _alpha_agp_info;
  25struct rtc_time;
  26
  27struct alpha_machine_vector
  28{
  29        /* This "belongs" down below with the rest of the runtime
  30           variables, but it is convenient for entry.S if these 
  31           two slots are at the beginning of the struct.  */
  32        unsigned long hae_cache;
  33        unsigned long *hae_register;
  34
  35        int nr_irqs;
  36        int rtc_port;
  37        int rtc_boot_cpu_only;
  38        unsigned int max_asn;
  39        unsigned long max_isa_dma_address;
  40        unsigned long irq_probe_mask;
  41        unsigned long iack_sc;
  42        unsigned long min_io_address;
  43        unsigned long min_mem_address;
  44        unsigned long pci_dac_offset;
  45
  46        void (*mv_pci_tbi)(struct pci_controller *hose,
  47                           dma_addr_t start, dma_addr_t end);
  48
  49        unsigned int (*mv_ioread8)(const void __iomem *);
  50        unsigned int (*mv_ioread16)(const void __iomem *);
  51        unsigned int (*mv_ioread32)(const void __iomem *);
  52
  53        void (*mv_iowrite8)(u8, void __iomem *);
  54        void (*mv_iowrite16)(u16, void __iomem *);
  55        void (*mv_iowrite32)(u32, void __iomem *);
  56
  57        u8 (*mv_readb)(const volatile void __iomem *);
  58        u16 (*mv_readw)(const volatile void __iomem *);
  59        u32 (*mv_readl)(const volatile void __iomem *);
  60        u64 (*mv_readq)(const volatile void __iomem *);
  61
  62        void (*mv_writeb)(u8, volatile void __iomem *);
  63        void (*mv_writew)(u16, volatile void __iomem *);
  64        void (*mv_writel)(u32, volatile void __iomem *);
  65        void (*mv_writeq)(u64, volatile void __iomem *);
  66
  67        void __iomem *(*mv_ioportmap)(unsigned long);
  68        void __iomem *(*mv_ioremap)(unsigned long, unsigned long);
  69        void (*mv_iounmap)(volatile void __iomem *);
  70        int (*mv_is_ioaddr)(unsigned long);
  71        int (*mv_is_mmio)(const volatile void __iomem *);
  72
  73        void (*mv_switch_mm)(struct mm_struct *, struct mm_struct *,
  74                             struct task_struct *);
  75        void (*mv_activate_mm)(struct mm_struct *, struct mm_struct *);
  76
  77        void (*mv_flush_tlb_current)(struct mm_struct *);
  78        void (*mv_flush_tlb_current_page)(struct mm_struct * mm,
  79                                          struct vm_area_struct *vma,
  80                                          unsigned long addr);
  81
  82        void (*update_irq_hw)(unsigned long, unsigned long, int);
  83        void (*ack_irq)(unsigned long);
  84        void (*device_interrupt)(unsigned long vector);
  85        void (*machine_check)(unsigned long vector, unsigned long la);
  86
  87        void (*smp_callin)(void);
  88        void (*init_arch)(void);
  89        void (*init_irq)(void);
  90        void (*init_rtc)(void);
  91        void (*init_pci)(void);
  92        void (*kill_arch)(int);
  93
  94        u8 (*pci_swizzle)(struct pci_dev *, u8 *);
  95        int (*pci_map_irq)(const struct pci_dev *, u8, u8);
  96        struct pci_ops *pci_ops;
  97
  98        struct _alpha_agp_info *(*agp_info)(void);
  99
 100        const char *vector_name;
 101
 102        /* System specific parameters.  */
 103        union {
 104            struct {
 105                unsigned long gru_int_req_bits;
 106            } cia;
 107
 108            struct {
 109                unsigned long gamma_bias;
 110            } t2;
 111
 112            struct {
 113                unsigned int route_tab;
 114            } sio;
 115        } sys;
 116};
 117
 118extern struct alpha_machine_vector alpha_mv;
 119
 120#ifdef CONFIG_ALPHA_GENERIC
 121extern int alpha_using_srm;
 122extern int alpha_using_qemu;
 123#else
 124# ifdef CONFIG_ALPHA_SRM
 125#  define alpha_using_srm 1
 126# else
 127#  define alpha_using_srm 0
 128# endif
 129# ifdef CONFIG_ALPHA_QEMU
 130#  define alpha_using_qemu 1
 131# else
 132#  define alpha_using_qemu 0
 133# endif
 134#endif /* GENERIC */
 135
 136#endif /* __KERNEL__ */
 137#endif /* __ALPHA_MACHVEC_H */
 138