/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ALPHA_MACHVEC_H
#define __ALPHA_MACHVEC_H 1

#include <linux/types.h>

/*
 *      This file gets pulled in by asm/io.h from user space. We don't
 *      want most of this escaping.
 */
 
#ifdef __KERNEL__

/* The following structure vectors all of the I/O and IRQ manipulation
   from the generic kernel to the hardware specific backend.  */

struct task_struct;
struct mm_struct;
struct vm_area_struct;
struct linux_hose_info;
struct pci_dev;
struct pci_ops;
struct pci_controller;
struct _alpha_agp_info;
struct rtc_time;

struct alpha_machine_vector
{
        /* This "belongs" down below with the rest of the runtime
           variables, but it is convenient for entry.S if these 
           two slots are at the beginning of the struct.  */
        unsigned long hae_cache;
        unsigned long *hae_register;

        int nr_irqs;
        int rtc_port;
        int rtc_boot_cpu_only;
        unsigned int max_asn;
        unsigned long max_isa_dma_address;
        unsigned long irq_probe_mask;
        unsigned long iack_sc;
        unsigned long min_io_address;
        unsigned long min_mem_address;
        unsigned long pci_dac_offset;

        void (*mv_pci_tbi)(struct pci_controller *hose,
                           dma_addr_t start, dma_addr_t end);

        u8 (*mv_ioread8)(const void __iomem *);
        u16 (*mv_ioread16)(const void __iomem *);
        u32 (*mv_ioread32)(const void __iomem *);
        u64 (*mv_ioread64)(const void __iomem *);

        void (*mv_iowrite8)(u8, void __iomem *);
        void (*mv_iowrite16)(u16, void __iomem *);
        void (*mv_iowrite32)(u32, void __iomem *);
        void (*mv_iowrite64)(u64, void __iomem *);

        u8 (*mv_readb)(const volatile void __iomem *);
        u16 (*mv_readw)(const volatile void __iomem *);
        u32 (*mv_readl)(const volatile void __iomem *);
        u64 (*mv_readq)(const volatile void __iomem *);

        void (*mv_writeb)(u8, volatile void __iomem *);
        void (*mv_writew)(u16, volatile void __iomem *);
        void (*mv_writel)(u32, volatile void __iomem *);
        void (*mv_writeq)(u64, volatile void __iomem *);

        void __iomem *(*mv_ioportmap)(unsigned long);
        void __iomem *(*mv_ioremap)(unsigned long, unsigned long);
        void (*mv_iounmap)(volatile void __iomem *);
        int (*mv_is_ioaddr)(unsigned long);
        int (*mv_is_mmio)(const volatile void __iomem *);

        void (*update_irq_hw)(unsigned long, unsigned long, int);
        void (*ack_irq)(unsigned long);
        void (*device_interrupt)(unsigned long vector);
        void (*machine_check)(unsigned long vector, unsigned long la);

        void (*smp_callin)(void);
        void (*init_arch)(void);
        void (*init_irq)(void);
        void (*init_rtc)(void);
        void (*init_pci)(void);
        void (*kill_arch)(int);

        u8 (*pci_swizzle)(struct pci_dev *, u8 *);
        int (*pci_map_irq)(const struct pci_dev *, u8, u8);
        struct pci_ops *pci_ops;

        struct _alpha_agp_info *(*agp_info)(void);

        const char *vector_name;

        /* System specific parameters.  */
        union {
            struct {
                unsigned long gru_int_req_bits;
            } cia;

            struct {
                unsigned long gamma_bias;
            } t2;

            struct {
                unsigned int route_tab;
            } sio;
        } sys;
};

extern struct alpha_machine_vector alpha_mv;

#ifdef CONFIG_ALPHA_GENERIC
extern int alpha_using_srm;
extern int alpha_using_qemu;
#else
# ifdef CONFIG_ALPHA_SRM
#  define alpha_using_srm 1
# else
#  define alpha_using_srm 0
# endif
# ifdef CONFIG_ALPHA_QEMU
#  define alpha_using_qemu 1
# else
#  define alpha_using_qemu 0
# endif
#endif /* GENERIC */

#endif /* __KERNEL__ */
#endif /* __ALPHA_MACHVEC_H */