Annotation of sys/dev/pci/agpvar.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: agpvar.h,v 1.6 2007/08/04 19:40:25 reyk Exp $ */
2: /* $NetBSD: agpvar.h,v 1.4 2001/10/01 21:54:48 fvdl Exp $ */
3:
4: /*-
5: * Copyright (c) 2000 Doug Rabson
6: * All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: *
17: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27: * SUCH DAMAGE.
28: *
29: * $FreeBSD: src/sys/pci/agppriv.h,v 1.3 2000/07/12 10:13:04 dfr Exp $
30: */
31:
32: #ifndef _PCI_AGPVAR_H_
33: #define _PCI_AGPVAR_H_
34:
35: #include <sys/lock.h>
36: #include <dev/pci/vga_pcivar.h>
37:
38: /* #define AGP_DEBUG */
39: #ifdef AGP_DEBUG
40: #define AGP_DPF(fmt, arg...) do { printf("agp: " fmt ,##arg); } while (0)
41: #else
42: #define AGP_DPF(fmt, arg...) do {} while (0)
43: #endif
44:
45: #define AGPUNIT(x) minor(x)
46:
47: struct agp_methods {
48: u_int32_t (*get_aperture)(struct vga_pci_softc *);
49: int (*set_aperture)(struct vga_pci_softc *, u_int32_t);
50: int (*bind_page)(struct vga_pci_softc *, off_t, bus_addr_t);
51: int (*unbind_page)(struct vga_pci_softc *, off_t);
52: void (*flush_tlb)(struct vga_pci_softc *);
53: int (*enable)(struct vga_pci_softc *, u_int32_t mode);
54: struct agp_memory *
55: (*alloc_memory)(struct vga_pci_softc *, int, vsize_t);
56: int (*free_memory)(struct vga_pci_softc *, struct agp_memory *);
57: int (*bind_memory)(struct vga_pci_softc *, struct agp_memory *,
58: off_t);
59: int (*unbind_memory)(struct vga_pci_softc *, struct agp_memory *);
60: };
61:
62: #define AGP_GET_APERTURE(sc) ((sc)->sc_methods->get_aperture(sc))
63: #define AGP_SET_APERTURE(sc,a) ((sc)->sc_methods->set_aperture((sc),(a)))
64: #define AGP_BIND_PAGE(sc,o,p) ((sc)->sc_methods->bind_page((sc),(o),(p)))
65: #define AGP_UNBIND_PAGE(sc,o) ((sc)->sc_methods->unbind_page((sc), (o)))
66: #define AGP_FLUSH_TLB(sc) ((sc)->sc_methods->flush_tlb(sc))
67: #define AGP_ENABLE(sc,m) ((sc)->sc_methods->enable((sc),(m)))
68: #define AGP_ALLOC_MEMORY(sc,t,s) ((sc)->sc_methods->alloc_memory((sc),(t),(s)))
69: #define AGP_FREE_MEMORY(sc,m) ((sc)->sc_methods->free_memory((sc),(m)))
70: #define AGP_BIND_MEMORY(sc,m,o) ((sc)->sc_methods->bind_memory((sc),(m),(o)))
71: #define AGP_UNBIND_MEMORY(sc,m) ((sc)->sc_methods->unbind_memory((sc),(m)))
72:
73: /*
74: * All chipset drivers must have this at the start of their softc.
75: */
76:
77: struct agp_gatt {
78: u_int32_t ag_entries;
79: u_int32_t *ag_virtual;
80: bus_addr_t ag_physical;
81: bus_dmamap_t ag_dmamap;
82: bus_dma_segment_t ag_dmaseg;
83: size_t ag_size;
84: };
85:
86:
87: /*
88: * Functions private to the AGP code.
89: */
90:
91: int agp_find_caps(pci_chipset_tag_t, pcitag_t);
92: int agp_map_aperture(struct vga_pci_softc *, u_int32_t, u_int32_t);
93: struct agp_gatt *
94: agp_alloc_gatt(struct vga_pci_softc *);
95: void agp_free_gatt(struct vga_pci_softc *, struct agp_gatt *);
96: void agp_flush_cache(void);
97: int agp_generic_attach(struct vga_pci_softc *);
98: int agp_generic_detach(struct vga_pci_softc *);
99: int agp_generic_enable(struct vga_pci_softc *, u_int32_t);
100: struct agp_memory *
101: agp_generic_alloc_memory(struct vga_pci_softc *, int, vsize_t size);
102: int agp_generic_free_memory(struct vga_pci_softc *, struct agp_memory *);
103: int agp_generic_bind_memory(struct vga_pci_softc *, struct agp_memory *,
104: off_t);
105: int agp_generic_unbind_memory(struct vga_pci_softc *, struct agp_memory *);
106:
107: int agp_ali_attach(struct vga_pci_softc *, struct pci_attach_args *,
108: struct pci_attach_args *);
109: int agp_amd_attach(struct vga_pci_softc *, struct pci_attach_args *,
110: struct pci_attach_args *);
111: int agp_i810_attach(struct vga_pci_softc *, struct pci_attach_args *,
112: struct pci_attach_args *);
113: int agp_intel_attach(struct vga_pci_softc *, struct pci_attach_args *,
114: struct pci_attach_args *);
115: int agp_via_attach(struct vga_pci_softc *, struct pci_attach_args *,
116: struct pci_attach_args *);
117: int agp_sis_attach(struct vga_pci_softc *, struct pci_attach_args *,
118: struct pci_attach_args *);
119:
120: int agp_alloc_dmamem(bus_dma_tag_t, size_t, int, bus_dmamap_t *,
121: caddr_t *, bus_addr_t *, bus_dma_segment_t *, int, int *);
122: void agp_free_dmamem(bus_dma_tag_t, size_t, bus_dmamap_t,
123: caddr_t, bus_dma_segment_t *, int nseg) ;
124:
125: #endif /* !_PCI_AGPVAR_H_ */
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