Annotation of sys/dev/pci/agpvar.h, Revision 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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