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
  17 struct task_struct;
  18 struct mm_struct;
  19 struct vm_area_struct;
  20 struct linux_hose_info;
  21 struct pci_dev;
  22 struct pci_ops;
  23 struct pci_controller;
  24 struct _alpha_agp_info;
  25 struct rtc_time;
  26
  27 struct 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         /* NUMA information */
 103         int (*pa_to_nid)(unsigned long);
 104         int (*cpuid_to_nid)(int);
 105         unsigned long (*node_mem_start)(int);
 106         unsigned long (*node_mem_size)(int);
 107
 108         /* System specific parameters.  */
 109         union {
 110             struct {
 111                 unsigned long gru_int_req_bits;
 112             } cia;
 113
 114             struct {
 115                 unsigned long gamma_bias;
 116             } t2;
 117
 118             struct {
 119                 unsigned int route_tab;
 120             } sio;
 121         } sys;
 122 };
 123
 124 extern struct alpha_machine_vector alpha_mv;
 125
 126 #ifdef CONFIG_ALPHA_GENERIC
 127 extern int alpha_using_srm;
 128 extern int alpha_using_qemu;
 129 #else
 130 # ifdef CONFIG_ALPHA_SRM
 131 #  define alpha_using_srm 1
 132 # else
 133 #  define alpha_using_srm 0
 134 # endif
 135 # ifdef CONFIG_ALPHA_QEMU
 136 #  define alpha_using_qemu 1
 137 # else
 138 #  define alpha_using_qemu 0
 139 # endif
 140 #endif /* GENERIC */
 141
 142 #endif /* __KERNEL__ */
 143 #endif /* __ALPHA_MACHVEC_H */