161452Sdfr/*- 261452Sdfr * Copyright (c) 2000 Doug Rabson 361452Sdfr * All rights reserved. 461452Sdfr * 561452Sdfr * Redistribution and use in source and binary forms, with or without 661452Sdfr * modification, are permitted provided that the following conditions 761452Sdfr * are met: 861452Sdfr * 1. Redistributions of source code must retain the above copyright 961452Sdfr * notice, this list of conditions and the following disclaimer. 1061452Sdfr * 2. Redistributions in binary form must reproduce the above copyright 1161452Sdfr * notice, this list of conditions and the following disclaimer in the 1261452Sdfr * documentation and/or other materials provided with the distribution. 1361452Sdfr * 1461452Sdfr * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1561452Sdfr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1661452Sdfr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1761452Sdfr * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1861452Sdfr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1961452Sdfr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2061452Sdfr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2161452Sdfr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2261452Sdfr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2361452Sdfr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2461452Sdfr * SUCH DAMAGE. 2561452Sdfr * 2661452Sdfr * $FreeBSD$ 2761452Sdfr */ 2861452Sdfr 2961452Sdfr#ifndef _SYS_AGPIO_H_ 3061452Sdfr#define _SYS_AGPIO_H_ 3161452Sdfr 3261452Sdfr/* 3361452Sdfr * The AGP gatt uses 4k pages irrespective of the host page size. 3461452Sdfr */ 3561452Sdfr#define AGP_PAGE_SIZE 4096 3661452Sdfr#define AGP_PAGE_SHIFT 12 3761452Sdfr 3861452Sdfr/* 3961452Sdfr * Macros to manipulate AGP mode words. 40110568Smdodd * 41110568Smdodd * SBA = Sideband Address Port 42110568Smdodd * FW = Fast Writes 4361452Sdfr */ 4461452Sdfr#define AGP_MODE_GET_RQ(x) (((x) & 0xff000000U) >> 24) 45121440Sjhb#define AGP_MODE_GET_ARQSZ(x) (((x) & 0x0000e000U) >> 13) 46121440Sjhb#define AGP_MODE_GET_CAL(x) (((x) & 0x00001c00U) >> 10) 4761452Sdfr#define AGP_MODE_GET_SBA(x) (((x) & 0x00000200U) >> 9) 4861452Sdfr#define AGP_MODE_GET_AGP(x) (((x) & 0x00000100U) >> 8) 49121440Sjhb#define AGP_MODE_GET_GART_64(x) (((x) & 0x00000080U) >> 7) 50121440Sjhb#define AGP_MODE_GET_OVER_4G(x) (((x) & 0x00000020U) >> 5) 5161452Sdfr#define AGP_MODE_GET_FW(x) (((x) & 0x00000010U) >> 4) 52121440Sjhb#define AGP_MODE_GET_MODE_3(x) (((x) & 0x00000008U) >> 3) 5386711Sru#define AGP_MODE_GET_RATE(x) ((x) & 0x00000007U) 5461452Sdfr#define AGP_MODE_SET_RQ(x,v) (((x) & ~0xff000000U) | ((v) << 24)) 55121440Sjhb#define AGP_MODE_SET_ARQSZ(x,v) (((x) & ~0x0000e000U) | ((v) << 13)) 56121440Sjhb#define AGP_MODE_SET_CAL(x,v) (((x) & ~0x00001c00U) | ((v) << 10)) 5761452Sdfr#define AGP_MODE_SET_SBA(x,v) (((x) & ~0x00000200U) | ((v) << 9)) 5861452Sdfr#define AGP_MODE_SET_AGP(x,v) (((x) & ~0x00000100U) | ((v) << 8)) 59121440Sjhb#define AGP_MODE_SET_GART_64(x,v) (((x) & ~0x00000080U) | ((v) << 7)) 60121440Sjhb#define AGP_MODE_SET_OVER_4G(x,v) (((x) & ~0x00000020U) | ((v) << 5)) 6161452Sdfr#define AGP_MODE_SET_FW(x,v) (((x) & ~0x00000010U) | ((v) << 4)) 62121440Sjhb#define AGP_MODE_SET_MODE_3(x,v) (((x) & ~0x00000008U) | ((v) << 3)) 6386711Sru#define AGP_MODE_SET_RATE(x,v) (((x) & ~0x00000007U) | (v)) 64121440Sjhb#define AGP_MODE_V2_RATE_1x 0x00000001 65121440Sjhb#define AGP_MODE_V2_RATE_2x 0x00000002 66121440Sjhb#define AGP_MODE_V2_RATE_4x 0x00000004 67121440Sjhb#define AGP_MODE_V3_RATE_4x 0x00000001 68121440Sjhb#define AGP_MODE_V3_RATE_8x 0x00000002 69121440Sjhb#define AGP_MODE_V3_RATE_RSVD 0x00000004 7061452Sdfr 71121440Sjhb/* XXX: Compat */ 72121440Sjhb#define AGP_MODE_GET_4G(x) AGP_MODE_GET_OVER_4G(x) 73121440Sjhb#define AGP_MODE_SET_4G(x) AGP_MODE_SET_OVER_4G(x) 74121440Sjhb#define AGP_MODE_RATE_1x AGP_MODE_V2_RATE_1x 75121440Sjhb#define AGP_MODE_RATE_2x AGP_MODE_V2_RATE_2x 76121440Sjhb#define AGP_MODE_RATE_4x AGP_MODE_V2_RATE_4x 77121440Sjhb 7861452Sdfr#define AGPIOC_BASE 'A' 7961452Sdfr#define AGPIOC_INFO _IOR (AGPIOC_BASE, 0, agp_info) 8061452Sdfr#define AGPIOC_ACQUIRE _IO (AGPIOC_BASE, 1) 8161452Sdfr#define AGPIOC_RELEASE _IO (AGPIOC_BASE, 2) 8261452Sdfr#define AGPIOC_SETUP _IOW (AGPIOC_BASE, 3, agp_setup) 8361452Sdfr#if 0 8461452Sdfr#define AGPIOC_RESERVE _IOW (AGPIOC_BASE, 4, agp_region) 8561452Sdfr#define AGPIOC_PROTECT _IOW (AGPIOC_BASE, 5, agp_region) 8661452Sdfr#endif 8761452Sdfr#define AGPIOC_ALLOCATE _IOWR(AGPIOC_BASE, 6, agp_allocate) 8861452Sdfr#define AGPIOC_DEALLOCATE _IOW (AGPIOC_BASE, 7, int) 8961452Sdfr#define AGPIOC_BIND _IOW (AGPIOC_BASE, 8, agp_bind) 9061452Sdfr#define AGPIOC_UNBIND _IOW (AGPIOC_BASE, 9, agp_unbind) 91235782Skib#define AGPIOC_CHIPSET_FLUSH _IO (AGPIOC_BASE, 10) 9261452Sdfr 9361452Sdfrtypedef struct _agp_version { 9461452Sdfr u_int16_t major; 9561452Sdfr u_int16_t minor; 9661452Sdfr} agp_version; 9761452Sdfr 9861452Sdfrtypedef struct _agp_info { 9961452Sdfr agp_version version; /* version of the driver */ 10061452Sdfr u_int32_t bridge_id; /* bridge vendor/device */ 10161452Sdfr u_int32_t agp_mode; /* mode info of bridge */ 10261452Sdfr off_t aper_base; /* base of aperture */ 10361452Sdfr size_t aper_size; /* size of aperture */ 10461452Sdfr size_t pg_total; /* max pages (swap + system) */ 10561452Sdfr size_t pg_system; /* max pages (system) */ 10661452Sdfr size_t pg_used; /* current pages used */ 10761452Sdfr} agp_info; 10861452Sdfr 10961452Sdfrtypedef struct _agp_setup { 11061452Sdfr u_int32_t agp_mode; /* mode info of bridge */ 11161452Sdfr} agp_setup; 11261452Sdfr 11361452Sdfr#if 0 11461452Sdfr/* 11561452Sdfr * The "prot" down below needs still a "sleep" flag somehow ... 11661452Sdfr */ 11761452Sdfrtypedef struct _agp_segment { 11861452Sdfr off_t pg_start; /* starting page to populate */ 11961452Sdfr size_t pg_count; /* number of pages */ 12061452Sdfr int prot; /* prot flags for mmap */ 12161452Sdfr} agp_segment; 12261452Sdfr 12361452Sdfrtypedef struct _agp_region { 12461452Sdfr pid_t pid; /* pid of process */ 12561452Sdfr size_t seg_count; /* number of segments */ 12661452Sdfr struct _agp_segment *seg_list; 12761452Sdfr} agp_region; 12861452Sdfr#endif 12961452Sdfr 13061452Sdfrtypedef struct _agp_allocate { 13161452Sdfr int key; /* tag of allocation */ 13261452Sdfr size_t pg_count; /* number of pages */ 13361452Sdfr u_int32_t type; /* 0 == normal, other devspec */ 13461452Sdfr u_int32_t physical; /* device specific (some devices 13561452Sdfr * need a phys address of the 13661452Sdfr * actual page behind the gatt 13761452Sdfr * table) */ 13861452Sdfr} agp_allocate; 13961452Sdfr 14061452Sdfrtypedef struct _agp_bind { 14161452Sdfr int key; /* tag of allocation */ 14261452Sdfr off_t pg_start; /* starting page to populate */ 14361452Sdfr} agp_bind; 14461452Sdfr 14561452Sdfrtypedef struct _agp_unbind { 14661452Sdfr int key; /* tag of allocation */ 14761452Sdfr u_int32_t priority; /* priority for paging out */ 14861452Sdfr} agp_unbind; 14961452Sdfr 15061452Sdfr#endif /* !_SYS_AGPIO_H_ */ 151