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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.
112 lines
3.0 KiB
C
112 lines
3.0 KiB
C
/*
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* Copyright (c) Red Hat Inc.
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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, sub license,
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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
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* next paragraph) shall be included in all copies or substantial portions
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* of the 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 NON-INFRINGEMENT. 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
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors: Dave Airlie <airlied@redhat.com>
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* Jerome Glisse <jglisse@redhat.com>
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*/
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#ifndef TTM_PAGE_ALLOC
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#define TTM_PAGE_ALLOC
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#include <drm/ttm/ttm_bo_driver.h>
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#include <drm/ttm/ttm_memory.h>
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struct device;
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/**
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* Initialize pool allocator.
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*/
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int ttm_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages);
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/**
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* Free pool allocator.
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*/
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void ttm_page_alloc_fini(void);
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/**
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* ttm_pool_populate:
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*
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* @ttm: The struct ttm_tt to contain the backing pages.
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*
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* Add backing pages to all of @ttm
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*/
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extern int ttm_pool_populate(struct ttm_tt *ttm);
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/**
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* ttm_pool_unpopulate:
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*
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* @ttm: The struct ttm_tt which to free backing pages.
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*
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* Free all pages of @ttm
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*/
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extern void ttm_pool_unpopulate(struct ttm_tt *ttm);
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/**
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* Output the state of pools to debugfs file
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*/
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extern int ttm_page_alloc_debugfs(struct seq_file *m, void *data);
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#if defined(CONFIG_SWIOTLB) || defined(CONFIG_INTEL_IOMMU)
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/**
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* Initialize pool allocator.
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*/
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int ttm_dma_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages);
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/**
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* Free pool allocator.
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*/
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void ttm_dma_page_alloc_fini(void);
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/**
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* Output the state of pools to debugfs file
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*/
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extern int ttm_dma_page_alloc_debugfs(struct seq_file *m, void *data);
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struct device;
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extern int ttm_dma_populate(struct ttm_dma_tt *ttm_dma, struct device *dev);
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extern void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev);
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#else
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static inline int ttm_dma_page_alloc_init(struct ttm_mem_global *glob,
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unsigned max_pages)
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{
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return -ENODEV;
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}
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static inline void ttm_dma_page_alloc_fini(void) { return; }
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static inline int ttm_dma_page_alloc_debugfs(struct seq_file *m, void *data)
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{
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return 0;
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}
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static inline int ttm_dma_populate(struct ttm_dma_tt *ttm_dma,
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struct device *dev)
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{
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return -ENOMEM;
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}
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static inline void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma,
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struct device *dev)
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{
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}
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#endif
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#endif
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