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 */
44
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