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2a709f28fa
* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
93 lines
3.0 KiB
C
93 lines
3.0 KiB
C
/*
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* Copyright (C) 2013 Red Hat
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef DRM_FLIP_WORK_H
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#define DRM_FLIP_WORK_H
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#include <linux/kfifo.h>
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#include <linux/spinlock.h>
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#include <linux/workqueue.h>
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/**
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* DOC: flip utils
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*
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* Util to queue up work to run from work-queue context after flip/vblank.
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* Typically this can be used to defer unref of framebuffer's, cursor
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* bo's, etc until after vblank. The APIs are all thread-safe.
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* Moreover, drm_flip_work_queue_task and drm_flip_work_queue can be called
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* in atomic context.
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*/
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struct drm_flip_work;
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/*
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* drm_flip_func_t - callback function
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*
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* @work: the flip work
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* @val: value queued via drm_flip_work_queue()
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*
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* Callback function to be called for each of the queue'd work items after
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* drm_flip_work_commit() is called.
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*/
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typedef void (*drm_flip_func_t)(struct drm_flip_work *work, void *val);
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/**
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* struct drm_flip_task - flip work task
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* @node: list entry element
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* @data: data to pass to work->func
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*/
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struct drm_flip_task {
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struct list_head node;
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void *data;
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};
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/**
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* struct drm_flip_work - flip work queue
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* @name: debug name
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* @func: callback fxn called for each committed item
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* @worker: worker which calls @func
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* @queued: queued tasks
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* @commited: commited tasks
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* @lock: lock to access queued and commited lists
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*/
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struct drm_flip_work {
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const char *name;
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drm_flip_func_t func;
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struct work_struct worker;
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struct list_head queued;
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struct list_head commited;
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spinlock_t lock;
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};
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struct drm_flip_task *drm_flip_work_allocate_task(void *data, gfp_t flags);
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void drm_flip_work_queue_task(struct drm_flip_work *work,
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struct drm_flip_task *task);
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void drm_flip_work_queue(struct drm_flip_work *work, void *val);
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void drm_flip_work_commit(struct drm_flip_work *work,
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struct workqueue_struct *wq);
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void drm_flip_work_init(struct drm_flip_work *work,
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const char *name, drm_flip_func_t func);
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void drm_flip_work_cleanup(struct drm_flip_work *work);
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#endif /* DRM_FLIP_WORK_H */
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