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/* $OpenBSD: agpvar.h,v 1.5 2006/11/26 18:35:51 dim Exp $ */
/* $NetBSD: agpvar.h,v 1.4 2001/10/01 21:54:48 fvdl Exp $ */
/*-
* Copyright (c) 2000 Doug Rabson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD: src/sys/pci/agppriv.h,v 1.3 2000/07/12 10:13:04 dfr Exp $
*/
#ifndef _PCI_AGPVAR_H_
#define _PCI_AGPVAR_H_
#include <sys/lock.h>
#include <dev/pci/vga_pcivar.h>
/* #define AGP_DEBUG */
#ifdef AGP_DEBUG
#define AGP_DPF(fmt, arg...) do { printf("agp: " fmt ,##arg); } while (0)
#else
#define AGP_DPF(fmt, arg...) do {} while (0)
#endif
#define AGPUNIT(x) minor(x)
struct agp_methods {
u_int32_t (*get_aperture)(struct vga_pci_softc *);
int (*set_aperture)(struct vga_pci_softc *, u_int32_t);
int (*bind_page)(struct vga_pci_softc *, off_t, bus_addr_t);
int (*unbind_page)(struct vga_pci_softc *, off_t);
void (*flush_tlb)(struct vga_pci_softc *);
int (*enable)(struct vga_pci_softc *, u_int32_t mode);
struct agp_memory *
(*alloc_memory)(struct vga_pci_softc *, int, vsize_t);
int (*free_memory)(struct vga_pci_softc *, struct agp_memory *);
int (*bind_memory)(struct vga_pci_softc *, struct agp_memory *,
off_t);
int (*unbind_memory)(struct vga_pci_softc *, struct agp_memory *);
};
#define AGP_GET_APERTURE(sc) ((sc)->sc_methods->get_aperture(sc))
#define AGP_SET_APERTURE(sc,a) ((sc)->sc_methods->set_aperture((sc),(a)))
#define AGP_BIND_PAGE(sc,o,p) ((sc)->sc_methods->bind_page((sc),(o),(p)))
#define AGP_UNBIND_PAGE(sc,o) ((sc)->sc_methods->unbind_page((sc), (o)))
#define AGP_FLUSH_TLB(sc) ((sc)->sc_methods->flush_tlb(sc))
#define AGP_ENABLE(sc,m) ((sc)->sc_methods->enable((sc),(m)))
#define AGP_ALLOC_MEMORY(sc,t,s) ((sc)->sc_methods->alloc_memory((sc),(t),(s)))
#define AGP_FREE_MEMORY(sc,m) ((sc)->sc_methods->free_memory((sc),(m)))
#define AGP_BIND_MEMORY(sc,m,o) ((sc)->sc_methods->bind_memory((sc),(m),(o)))
#define AGP_UNBIND_MEMORY(sc,m) ((sc)->sc_methods->unbind_memory((sc),(m)))
/*
* All chipset drivers must have this at the start of their softc.
*/
struct agp_gatt {
u_int32_t ag_entries;
u_int32_t *ag_virtual;
bus_addr_t ag_physical;
bus_dmamap_t ag_dmamap;
bus_dma_segment_t ag_dmaseg;
size_t ag_size;
};
/*
* Functions private to the AGP code.
*/
int agp_find_caps(pci_chipset_tag_t, pcitag_t);
int agp_map_aperture(struct vga_pci_softc *);
struct agp_gatt *
agp_alloc_gatt(struct vga_pci_softc *);
void agp_free_gatt(struct vga_pci_softc *, struct agp_gatt *);
void agp_flush_cache(void);
int agp_generic_attach(struct vga_pci_softc *);
int agp_generic_detach(struct vga_pci_softc *);
int agp_generic_enable(struct vga_pci_softc *, u_int32_t);
struct agp_memory *
agp_generic_alloc_memory(struct vga_pci_softc *, int, vsize_t size);
int agp_generic_free_memory(struct vga_pci_softc *, struct agp_memory *);
int agp_generic_bind_memory(struct vga_pci_softc *, struct agp_memory *,
off_t);
int agp_generic_unbind_memory(struct vga_pci_softc *, struct agp_memory *);
int agp_ali_attach(struct vga_pci_softc *, struct pci_attach_args *,
struct pci_attach_args *);
int agp_amd_attach(struct vga_pci_softc *, struct pci_attach_args *,
struct pci_attach_args *);
int agp_i810_attach(struct vga_pci_softc *, struct pci_attach_args *,
struct pci_attach_args *);
int agp_intel_attach(struct vga_pci_softc *, struct pci_attach_args *,
struct pci_attach_args *);
int agp_via_attach(struct vga_pci_softc *, struct pci_attach_args *,
struct pci_attach_args *);
int agp_sis_attach(struct vga_pci_softc *, struct pci_attach_args *,
struct pci_attach_args *);
int agp_alloc_dmamem(bus_dma_tag_t, size_t, int, bus_dmamap_t *,
caddr_t *, bus_addr_t *, bus_dma_segment_t *, int, int *);
void agp_free_dmamem(bus_dma_tag_t, size_t, bus_dmamap_t,
caddr_t, bus_dma_segment_t *, int nseg) ;
#endif /* !_PCI_AGPVAR_H_ */
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