diff options
Diffstat (limited to 'drivers/char/drm/drm_drawable.c')
| -rw-r--r-- | drivers/char/drm/drm_drawable.c | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/drivers/char/drm/drm_drawable.c b/drivers/char/drm/drm_drawable.c deleted file mode 100644 index 1839c57663c..00000000000 --- a/drivers/char/drm/drm_drawable.c +++ /dev/null @@ -1,192 +0,0 @@ -/** - * \file drm_drawable.c - * IOCTLs for drawables - * - * \author Rickard E. (Rik) Faith <faith@valinux.com> - * \author Gareth Hughes <gareth@valinux.com> - * \author Michel Dänzer <michel@tungstengraphics.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. - * Copyright 2006 Tungsten Graphics, Inc., Bismarck, North Dakota. - * 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 "drmP.h" - -/** - * Allocate drawable ID and memory to store information about it. - */ -int drm_adddraw(struct drm_device *dev, void *data, struct drm_file *file_priv) -{ - unsigned long irqflags; - struct drm_draw *draw = data; - int new_id = 0; - int ret; - -again: - if (idr_pre_get(&dev->drw_idr, GFP_KERNEL) == 0) { - DRM_ERROR("Out of memory expanding drawable idr\n"); - return -ENOMEM; - } - - spin_lock_irqsave(&dev->drw_lock, irqflags); - ret = idr_get_new_above(&dev->drw_idr, NULL, 1, &new_id); - if (ret == -EAGAIN) { - spin_unlock_irqrestore(&dev->drw_lock, irqflags); - goto again; - } - - spin_unlock_irqrestore(&dev->drw_lock, irqflags); - - draw->handle = new_id; - - DRM_DEBUG("%d\n", draw->handle); - - return 0; -} - -/** - * Free drawable ID and memory to store information about it. - */ -int drm_rmdraw(struct drm_device *dev, void *data, struct drm_file *file_priv) -{ - struct drm_draw *draw = data; - unsigned long irqflags; - - spin_lock_irqsave(&dev->drw_lock, irqflags); - - drm_free(drm_get_drawable_info(dev, draw->handle), - sizeof(struct drm_drawable_info), DRM_MEM_BUFS); - - idr_remove(&dev->drw_idr, draw->handle); - - spin_unlock_irqrestore(&dev->drw_lock, irqflags); - DRM_DEBUG("%d\n", draw->handle); - return 0; -} - -int drm_update_drawable_info(struct drm_device *dev, void *data, struct drm_file *file_priv) -{ - struct drm_update_draw *update = data; - unsigned long irqflags; - struct drm_clip_rect *rects; - struct drm_drawable_info *info; - int err; - - info = idr_find(&dev->drw_idr, update->handle); - if (!info) { - info = drm_calloc(1, sizeof(*info), DRM_MEM_BUFS); - if (!info) - return -ENOMEM; - if (IS_ERR(idr_replace(&dev->drw_idr, info, update->handle))) { - DRM_ERROR("No such drawable %d\n", update->handle); - drm_free(info, sizeof(*info), DRM_MEM_BUFS); - return -EINVAL; - } - } - - switch (update->type) { - case DRM_DRAWABLE_CLIPRECTS: - if (update->num != info->num_rects) { - rects = drm_alloc(update->num * sizeof(struct drm_clip_rect), - DRM_MEM_BUFS); - } else - rects = info->rects; - - if (update->num && !rects) { - DRM_ERROR("Failed to allocate cliprect memory\n"); - err = -ENOMEM; - goto error; - } - - if (update->num && DRM_COPY_FROM_USER(rects, - (struct drm_clip_rect __user *) - (unsigned long)update->data, - update->num * - sizeof(*rects))) { - DRM_ERROR("Failed to copy cliprects from userspace\n"); - err = -EFAULT; - goto error; - } - - spin_lock_irqsave(&dev->drw_lock, irqflags); - - if (rects != info->rects) { - drm_free(info->rects, info->num_rects * - sizeof(struct drm_clip_rect), DRM_MEM_BUFS); - } - - info->rects = rects; - info->num_rects = update->num; - - spin_unlock_irqrestore(&dev->drw_lock, irqflags); - - DRM_DEBUG("Updated %d cliprects for drawable %d\n", - info->num_rects, update->handle); - break; - default: - DRM_ERROR("Invalid update type %d\n", update->type); - return -EINVAL; - } - - return 0; - -error: - if (rects != info->rects) - drm_free(rects, update->num * sizeof(struct drm_clip_rect), - DRM_MEM_BUFS); - - return err; -} - -/** - * Caller must hold the drawable spinlock! - */ -struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev, drm_drawable_t id) -{ - return idr_find(&dev->drw_idr, id); -} -EXPORT_SYMBOL(drm_get_drawable_info); - -static int drm_drawable_free(int idr, void *p, void *data) -{ - struct drm_drawable_info *info = p; - - if (info) { - drm_free(info->rects, info->num_rects * - sizeof(struct drm_clip_rect), DRM_MEM_BUFS); - drm_free(info, sizeof(*info), DRM_MEM_BUFS); - } - - return 0; -} - -void drm_drawable_free_all(struct drm_device *dev) -{ - idr_for_each(&dev->drw_idr, drm_drawable_free, NULL); - idr_remove_all(&dev->drw_idr); -} |