106 строки
2.8 KiB
C
106 строки
2.8 KiB
C
/*
|
|
* \file drm_legacy_misc.c
|
|
* Misc legacy support functions.
|
|
*
|
|
* \author Rickard E. (Rik) Faith <faith@valinux.com>
|
|
* \author Gareth Hughes <gareth@valinux.com>
|
|
*/
|
|
|
|
/*
|
|
* Created: Tue Feb 2 08:37:54 1999 by faith@valinux.com
|
|
*
|
|
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
|
|
* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
|
|
* 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, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the next
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
* Software.
|
|
*
|
|
* 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. IN NO EVENT SHALL
|
|
* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#include <drm/drm_device.h>
|
|
#include <drm/drm_drv.h>
|
|
#include <drm/drm_print.h>
|
|
|
|
#include "drm_internal.h"
|
|
#include "drm_legacy.h"
|
|
|
|
void drm_legacy_init_members(struct drm_device *dev)
|
|
{
|
|
INIT_LIST_HEAD(&dev->ctxlist);
|
|
INIT_LIST_HEAD(&dev->vmalist);
|
|
INIT_LIST_HEAD(&dev->maplist);
|
|
spin_lock_init(&dev->buf_lock);
|
|
mutex_init(&dev->ctxlist_mutex);
|
|
}
|
|
|
|
void drm_legacy_destroy_members(struct drm_device *dev)
|
|
{
|
|
mutex_destroy(&dev->ctxlist_mutex);
|
|
}
|
|
|
|
int drm_legacy_setup(struct drm_device * dev)
|
|
{
|
|
int ret;
|
|
|
|
if (dev->driver->firstopen &&
|
|
drm_core_check_feature(dev, DRIVER_LEGACY)) {
|
|
ret = dev->driver->firstopen(dev);
|
|
if (ret != 0)
|
|
return ret;
|
|
}
|
|
|
|
ret = drm_legacy_dma_setup(dev);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
|
|
DRM_DEBUG("\n");
|
|
return 0;
|
|
}
|
|
|
|
void drm_legacy_dev_reinit(struct drm_device *dev)
|
|
{
|
|
if (dev->irq_enabled)
|
|
drm_legacy_irq_uninstall(dev);
|
|
|
|
mutex_lock(&dev->struct_mutex);
|
|
|
|
drm_legacy_agp_clear(dev);
|
|
|
|
drm_legacy_sg_cleanup(dev);
|
|
drm_legacy_vma_flush(dev);
|
|
drm_legacy_dma_takedown(dev);
|
|
|
|
mutex_unlock(&dev->struct_mutex);
|
|
|
|
dev->sigdata.lock = NULL;
|
|
|
|
dev->context_flag = 0;
|
|
dev->last_context = 0;
|
|
dev->if_version = 0;
|
|
|
|
DRM_DEBUG("lastclose completed\n");
|
|
}
|
|
|
|
void drm_master_legacy_init(struct drm_master *master)
|
|
{
|
|
spin_lock_init(&master->lock.spinlock);
|
|
init_waitqueue_head(&master->lock.lock_queue);
|
|
}
|