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-rw-r--r--hw/kdrive/linux/agp.c355
1 files changed, 0 insertions, 355 deletions
diff --git a/hw/kdrive/linux/agp.c b/hw/kdrive/linux/agp.c
deleted file mode 100644
index d401e03a1..000000000
--- a/hw/kdrive/linux/agp.c
+++ /dev/null
@@ -1,355 +0,0 @@
-/*
- * Abstraction of the AGP GART interface.
- *
- * This version is for both Linux and FreeBSD.
- *
- * Copyright © 2000-2001 Nokia Home Communications
- * Copyright © 2000 VA Linux Systems, Inc.
-
-All rights reserved.
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, and/or sell copies of the Software, and to permit persons
-to whom the Software is furnished to do so, provided that the above
-copyright notice(s) and this permission notice appear in all copies of
-the Software and that both the above copyright notice(s) and this
-permission notice appear in supporting documentation.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
-OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY
-SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER
-RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
-CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
-CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-Except as contained in this notice, the name of a copyright holder
-shall not be used in advertising or otherwise to promote the sale, use
-or other dealings in this Software without prior written authorization
-of the copyright holder.
-
- */
-
-/* $RCSId: xc/programs/Xserver/hw/xfree86/os-support/linux/lnx_agp.c,v 3.4 2000/08/28 18:12:56 dawes Exp $ */
-
-/*
- * Author: Pontus Lidman <pontus.lidman@nokia.com> (adaption to KDrive) and others
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include <X11/X.h>
-
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <sys/ioctl.h>
-
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include <stdlib.h>
-
-#include "agp.h"
-
-#if defined(linux)
-#include <asm/ioctl.h>
-
-#include <linux/agpgart.h>
-
-#elif defined(__FreeBSD__)
-#include <sys/ioctl.h>
-#include <sys/agpio.h>
-#endif
-
-#ifndef AGP_DEVICE
-#define AGP_DEVICE "/dev/agpgart"
-#endif
-/* AGP page size is independent of the host page size. */
-#ifndef AGP_PAGE_SIZE
-#define AGP_PAGE_SIZE 4096
-#endif
-#define AGPGART_MAJOR_VERSION 0
-#define AGPGART_MINOR_VERSION 99
-
-static int gartFd = -1;
-static int acquiredScreen = -1;
-
-/*
- * Open /dev/agpgart. Keep it open until server exit.
- */
-
-static Bool
-GARTInit(void)
-{
- static Bool initDone = FALSE;
- struct _agp_info agpinf;
-
- if (initDone)
- return (gartFd != -1);
-
- initDone = TRUE;
-
- if (gartFd == -1)
- gartFd = open(AGP_DEVICE, O_RDWR, 0);
- else
- return FALSE;
-
- if (gartFd == -1) {
- fprintf(stderr, "Unable to open " AGP_DEVICE " (%s)\n",
- strerror(errno));
- return FALSE;
- }
-
- KdAcquireGART(-1);
- /* Check the kernel driver version. */
- if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) {
- fprintf(stderr, "GARTInit: AGPIOC_INFO failed (%s)\n",
- strerror(errno));
- close(gartFd);
- gartFd = -1;
- return FALSE;
- }
- KdReleaseGART(-1);
-
-#if defined(linux)
- /* Per Dave Jones, every effort will be made to keep the
- * agpgart interface backwards compatible, so allow all
- * future versions.
- */
- if (
-#if (AGPGART_MAJOR_VERSION > 0) /* quiet compiler */
- agpinf.version.major < AGPGART_MAJOR_VERSION ||
-#endif
- (agpinf.version.major == AGPGART_MAJOR_VERSION &&
- agpinf.version.minor < AGPGART_MINOR_VERSION)) {
- fprintf(stderr,
- "Kernel agpgart driver version is not current"
- " (%d.%d vs %d.%d)\n",
- agpinf.version.major, agpinf.version.minor,
- AGPGART_MAJOR_VERSION, AGPGART_MINOR_VERSION);
- close(gartFd);
- gartFd = -1;
- return FALSE;
- }
-#endif
-
- return TRUE;
-}
-
-Bool
-KdAgpGARTSupported()
-{
- return GARTInit();
-}
-
-AgpInfoPtr
-KdGetAGPInfo(int screenNum)
-{
- struct _agp_info agpinf;
- AgpInfoPtr info;
-
- if (!GARTInit())
- return NULL;
-
-
- if ((info = calloc(sizeof(AgpInfo), 1)) == NULL) {
- fprintf(stderr, "Failed to allocate AgpInfo\n");
- return NULL;
- }
-
- if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) {
- fprintf(stderr,
- "xf86GetAGPInfo: AGPIOC_INFO failed (%s)\n",
- strerror(errno));
- return NULL;
- }
-
- info->bridgeId = agpinf.bridge_id;
- info->agpMode = agpinf.agp_mode;
- info->base = agpinf.aper_base;
- info->size = agpinf.aper_size;
- info->totalPages = agpinf.pg_total;
- info->systemPages = agpinf.pg_system;
- info->usedPages = agpinf.pg_used;
-
- return info;
-}
-
-/*
- * XXX If multiple screens can acquire the GART, should we have a reference
- * count instead of using acquiredScreen?
- */
-
-Bool
-KdAcquireGART(int screenNum)
-{
- if (screenNum != -1 && !GARTInit())
- return FALSE;
-
- if (screenNum == -1 || acquiredScreen != screenNum) {
- if (ioctl(gartFd, AGPIOC_ACQUIRE, 0) != 0) {
- fprintf(stderr,
- "AGPIOC_ACQUIRE failed (%s)\n",
- strerror(errno));
- return FALSE;
- }
- acquiredScreen = screenNum;
- }
-
- return TRUE;
-}
-
-Bool
-KdReleaseGART(int screenNum)
-{
- if (screenNum != -1 && !GARTInit())
- return FALSE;
-
- if (acquiredScreen == screenNum) {
- if (ioctl(gartFd, AGPIOC_RELEASE, 0) != 0) {
- fprintf(stderr,
- "AGPIOC_RELEASE failed (%s)\n",
- strerror(errno));
- return FALSE;
- }
- acquiredScreen = -1;
- return TRUE;
- }
- return FALSE;
-}
-
-int
-KdAllocateGARTMemory(int screenNum, unsigned long size, int type,
- unsigned long *physical)
-{
- struct _agp_allocate alloc;
- int pages;
-
- /*
- * Allocates "size" bytes of GART memory (rounds up to the next
- * page multiple) or type "type". A handle (key) for the allocated
- * memory is returned. On error, the return value is -1.
- */
-
- if (!GARTInit() || acquiredScreen != screenNum)
- return -1;
-
- pages = (size / AGP_PAGE_SIZE);
- if (size % AGP_PAGE_SIZE != 0)
- pages++;
-
- /* XXX check for pages == 0? */
-
- alloc.pg_count = pages;
- alloc.type = type;
-
- if (ioctl(gartFd, AGPIOC_ALLOCATE, &alloc) != 0) {
- fprintf(stderr, "KdAllocateGARTMemory: "
- "allocation of %d pages failed\n\t(%s)\n", pages,
- strerror(errno));
- return -1;
- }
-
- if (physical)
- *physical = alloc.physical;
-
- return alloc.key;
-}
-
-
-/* Bind GART memory with "key" at "offset" */
-Bool
-KdBindGARTMemory(int screenNum, int key, unsigned long offset)
-{
- struct _agp_bind bind;
- int pageOffset;
-
- if (!GARTInit() || acquiredScreen != screenNum)
- return FALSE;
-
- if (acquiredScreen != screenNum) {
- fprintf(stderr,
- "AGP not acquired by this screen\n");
- return FALSE;
- }
-
- if (offset % AGP_PAGE_SIZE != 0) {
- fprintf(stderr, "KdBindGARTMemory: "
- "offset (0x%lx) is not page-aligned (%d)\n",
- offset, AGP_PAGE_SIZE);
- return FALSE;
- }
- pageOffset = offset / AGP_PAGE_SIZE;
-
- bind.pg_start = pageOffset;
- bind.key = key;
-
- if (ioctl(gartFd, AGPIOC_BIND, &bind) != 0) {
- fprintf(stderr, "KdBindGARTMemory: "
- "binding of gart memory with key %d\n"
- "\tat offset 0x%lx failed (%s)\n",
- key, offset, strerror(errno));
- return FALSE;
- }
-
- return TRUE;
-}
-
-
-/* Unbind GART memory with "key" */
-Bool
-KdUnbindGARTMemory(int screenNum, int key)
-{
- struct _agp_unbind unbind;
-
- if (!GARTInit() || acquiredScreen != screenNum)
- return FALSE;
-
- if (acquiredScreen != screenNum) {
- fprintf(stderr,
- "AGP not acquired by this screen\n");
- return FALSE;
- }
-
- unbind.priority = 0;
- unbind.key = key;
-
- if (ioctl(gartFd, AGPIOC_UNBIND, &unbind) != 0) {
- fprintf(stderr, "KdUnbindGARTMemory: "
- "unbinding of gart memory with key %d "
- "failed (%s)\n", key, strerror(errno));
- return FALSE;
- }
-
- return TRUE;
-}
-
-
-/* XXX Interface may change. */
-Bool
-KdEnableAGP(int screenNum, CARD32 mode)
-{
- agp_setup setup;
-
- if (!GARTInit() || acquiredScreen != screenNum)
- return FALSE;
-
- setup.agp_mode = mode;
- if (ioctl(gartFd, AGPIOC_SETUP, &setup) != 0) {
- fprintf(stderr, "KdEnableAGP: "
- "AGPIOC_SETUP with mode %ld failed (%s)\n",
- mode, strerror(errno));
- return FALSE;
- }
-
- return TRUE;
-}
-
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