/* * Copyright (C) 2013 Red Hat * * 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 * THE AUTHORS OR COPYRIGHT HOLDERS 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.
*/
/** * DOC: flip utils * * Utility to queue up work to run from work-queue context after flip/vblank. * Typically this can be used to defer unref of framebuffer's, cursor * bo's, etc until after vblank. The APIs are all thread-safe. Moreover, * drm_flip_work_commit() can be called in atomic context.
*/
struct drm_flip_work;
/* * drm_flip_func_t - callback function * * @work: the flip work * @val: value queued via drm_flip_work_queue() * * Callback function to be called for each of the queue'd work items after * drm_flip_work_commit() is called.
*/ typedefvoid (*drm_flip_func_t)(struct drm_flip_work *work, void *val);
/** * struct drm_flip_work - flip work queue * @name: debug name * @func: callback fxn called for each committed item * @worker: worker which calls @func * @queued: queued tasks * @commited: commited tasks * @lock: lock to access queued and commited lists
*/ struct drm_flip_work { constchar *name;
drm_flip_func_t func; struct work_struct worker; struct list_head queued; struct list_head commited;
spinlock_t lock;
};
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