arch/alpha/include/asm/agp_backend.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ALPHA_AGP_BACKEND_H
   3 #define _ALPHA_AGP_BACKEND_H 1
   4
   5 typedef union _alpha_agp_mode {
   6         struct {
   7                 u32 rate : 3;
   8                 u32 reserved0 : 1;
   9                 u32 fw : 1;
  10                 u32 fourgb : 1;
  11                 u32 reserved1 : 2;
  12                 u32 enable : 1;
  13                 u32 sba : 1;
  14                 u32 reserved2 : 14;
  15                 u32 rq : 8;
  16         } bits;
  17         u32 lw;
  18 } alpha_agp_mode;
  19
  20 typedef struct _alpha_agp_info {
  21         struct pci_controller *hose;
  22         struct {
  23                 dma_addr_t bus_base;
  24                 unsigned long size;
  25                 void *sysdata;
  26         } aperture;
  27         alpha_agp_mode capability;
  28         alpha_agp_mode mode;
  29         void *private;
  30         struct alpha_agp_ops *ops;
  31 } alpha_agp_info;
  32
  33 struct alpha_agp_ops {
  34         int (*setup)(alpha_agp_info *);
  35         void (*cleanup)(alpha_agp_info *);
  36         int (*configure)(alpha_agp_info *);
  37         int (*bind)(alpha_agp_info *, off_t, struct agp_memory *);
  38         int (*unbind)(alpha_agp_info *, off_t, struct agp_memory *);
  39         unsigned long (*translate)(alpha_agp_info *, dma_addr_t);
  40 };
  41
  42
  43 #endif /* _ALPHA_AGP_BACKEND_H */