agp_backend.h

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#ifndef _ALPHA_AGP_BACKEND_H
#define _ALPHA_AGP_BACKEND_H 1

typedef union _alpha_agp_mode {
    struct {
        u32 rate : 3;
        u32 reserved0 : 1;
        u32 fw : 1;
        u32 fourgb : 1;
        u32 reserved1 : 2;
        u32 enable : 1;
        u32 sba : 1;
        u32 reserved2 : 14;
        u32 rq : 8;
    } bits;
    u32 lw;
} alpha_agp_mode;

typedef struct _alpha_agp_info {
    struct pci_controller *hose;
    struct {
        dma_addr_t bus_base;
        unsigned long size;
        void *sysdata;
    } aperture;
    alpha_agp_mode capability;
    alpha_agp_mode mode;
    void *private;
    struct alpha_agp_ops *ops;
} alpha_agp_info;

struct alpha_agp_ops {
    int (*setup)(alpha_agp_info *);
    void (*cleanup)(alpha_agp_info *);
    int (*configure)(alpha_agp_info *);
    int (*bind)(alpha_agp_info *, off_t, struct agp_memory *);
    int (*unbind)(alpha_agp_info *, off_t, struct agp_memory *);
    unsigned long (*translate)(alpha_agp_info *, dma_addr_t);
};


#endif /* _ALPHA_AGP_BACKEND_H */