/* * \file drm_legacy_misc.c * Misc legacy support functions. * * \author Rickard E. (Rik) Faith * \author Gareth Hughes */ /* * 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 #include #include #include #include #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); mtx_init(&dev->buf_lock, IPL_NONE); rw_init(&dev->ctxlist_mutex, "drmoctx"); } 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_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) { mtx_init(&master->lock.spinlock, IPL_TTY); init_waitqueue_head(&master->lock.lock_queue); }