diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/gpu/drm/drm_legacy_misc.c | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/drm_legacy_misc.c')
-rw-r--r-- | drivers/gpu/drm/drm_legacy_misc.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_legacy_misc.c b/drivers/gpu/drm/drm_legacy_misc.c new file mode 100644 index 0000000000..d4c5434062 --- /dev/null +++ b/drivers/gpu/drm/drm_legacy_misc.c @@ -0,0 +1,105 @@ +/* + * \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); +} |