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/* $OpenBSD: agpreg.h,v 1.1 2002/07/12 20:17:03 mickey Exp $ */
/* $NetBSD: agpreg.h,v 1.1 2001/09/10 10:01:02 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/agpreg.h,v 1.3 2000/07/12 10:13:04 dfr Exp $
*/
#ifndef _PCI_AGPREG_H_
#define _PCI_AGPREG_H_
/*
* Offsets for various AGP configuration registers.
*/
#define AGP_APBASE 0x10
/*
* Offsets from the AGP Capability pointer.
*/
#define AGP_CAPID 0x02
#define AGP_CAPID_GET_MAJOR(x) (((x) & 0x00f00000U) >> 20)
#define AGP_CAPID_GET_MINOR(x) (((x) & 0x000f0000U) >> 16)
#define AGP_CAPID_GET_NEXT_PTR(x) (((x) & 0x0000ff00U) >> 8)
#define AGP_CAPID_GET_CAP_ID(x) (((x) & 0x000000ffU) >> 0)
#define AGP_STATUS 0x4
#define AGP_COMMAND 0x8
/*
* Config offsets for Intel AGP chipsets.
*/
#define AGP_INTEL_NBXCFG 0x50
#define AGP_INTEL_STS 0x90
#define AGP_INTEL_AGPCTRL 0xb0
#define AGP_INTEL_APSIZE 0xb4
#define AGP_INTEL_ATTBASE 0xb8
/*
* Config offsets for VIA AGP chipsets.
*/
#define AGP_VIA_GARTCTRL 0x80
#define AGP_VIA_APSIZE 0x84
#define AGP_VIA_ATTBASE 0x88
/*
* Config offsets for SiS AGP chipsets.
*/
#define AGP_SIS_ATTBASE 0x90
#define AGP_SIS_WINCTRL 0x94
#define AGP_SIS_TLBCTRL 0x97
#define AGP_SIS_TLBFLUSH 0x98
/*
* Config offsets for Ali AGP chipsets.
*/
#define AGP_ALI_AGPCTRL 0xb8
#define AGP_ALI_ATTBASE 0xbc
#define AGP_ALI_TLBCTRL 0xc0
/*
* Config offsets for the AMD 751 chipset.
*/
#define AGP_AMD751_REGISTERS 0x14
#define AGP_AMD751_APCTRL 0xac
#define AGP_AMD751_MODECTRL 0xb0
#define AGP_AMD751_MODECTRL_SYNEN 0x80
#define AGP_AMD751_MODECTRL2 0xb2
#define AGP_AMD751_MODECTRL2_G1LM 0x01
#define AGP_AMD751_MODECTRL2_GPDCE 0x02
#define AGP_AMD751_MODECTRL2_NGSE 0x08
/*
* Memory mapped register offsets for AMD 751 chipset.
*/
#define AGP_AMD751_CAPS 0x00
#define AGP_AMD751_CAPS_EHI 0x0800
#define AGP_AMD751_CAPS_P2P 0x0400
#define AGP_AMD751_CAPS_MPC 0x0200
#define AGP_AMD751_CAPS_VBE 0x0100
#define AGP_AMD751_CAPS_REV 0x00ff
#define AGP_AMD751_STATUS 0x02
#define AGP_AMD751_STATUS_P2PS 0x0800
#define AGP_AMD751_STATUS_GCS 0x0400
#define AGP_AMD751_STATUS_MPS 0x0200
#define AGP_AMD751_STATUS_VBES 0x0100
#define AGP_AMD751_STATUS_P2PE 0x0008
#define AGP_AMD751_STATUS_GCE 0x0004
#define AGP_AMD751_STATUS_VBEE 0x0001
#define AGP_AMD751_ATTBASE 0x04
#define AGP_AMD751_TLBCTRL 0x0c
/*
* Config registers for i810 device 0
*/
#define AGP_I810_SMRAM 0x70
#define AGP_I810_SMRAM_GMS 0xc0
#define AGP_I810_SMRAM_GMS_DISABLED 0x00
#define AGP_I810_SMRAM_GMS_ENABLED_0 0x40
#define AGP_I810_SMRAM_GMS_ENABLED_512 0x80
#define AGP_I810_SMRAM_GMS_ENABLED_1024 0xc0
#define AGP_I810_MISCC 0x72
#define AGP_I810_MISCC_WINSIZE 0x0001
#define AGP_I810_MISCC_WINSIZE_64 0x0000
#define AGP_I810_MISCC_WINSIZE_32 0x0001
#define AGP_I810_MISCC_PLCK 0x0008
#define AGP_I810_MISCC_PLCK_UNLOCKED 0x0000
#define AGP_I810_MISCC_PLCK_LOCKED 0x0008
#define AGP_I810_MISCC_WPTC 0x0030
#define AGP_I810_MISCC_WPTC_NOLIMIT 0x0000
#define AGP_I810_MISCC_WPTC_62 0x0010
#define AGP_I810_MISCC_WPTC_50 0x0020
#define AGP_I810_MISCC_WPTC_37 0x0030
#define AGP_I810_MISCC_RPTC 0x00c0
#define AGP_I810_MISCC_RPTC_NOLIMIT 0x0000
#define AGP_I810_MISCC_RPTC_62 0x0040
#define AGP_I810_MISCC_RPTC_50 0x0080
#define AGP_I810_MISCC_RPTC_37 0x00c0
/*
* Config registers for i810 device 1
*/
#define AGP_I810_GMADR 0x10
#define AGP_I810_MMADR 0x14
/*
* Memory mapped register offsets for i810 chipset.
*/
#define AGP_I810_PGTBL_CTL 0x2020
#define AGP_I810_DRT 0x3000
#define AGP_I810_DRT_UNPOPULATED 0x00
#define AGP_I810_DRT_POPULATED 0x01
#define AGP_I810_GTT 0x10000
#endif /* !_PCI_AGPREG_H_ */
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