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/*
* Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef NVGPU_KMEM_H
#define NVGPU_KMEM_H
struct gk20a;
/*
* In Linux there is support for the notion of a kmem_cache. It gives better
* memory usage characteristics for lots of allocations of the same size. Think
* structs that get allocated over and over. Normal kmalloc() type routines
* typically round to the next power-of-2 since that's easy.
*
* But if we know the size ahead of time the packing for the allocations can be
* much better. This is the benefit of a slab allocator. This type hides the
* underlying kmem_cache (or absense thereof).
*/
struct nvgpu_kmem_cache;
struct nvgpu_kmem_cache *nvgpu_kmem_cache_create(struct gk20a *g, size_t size);
void nvgpu_kmem_cache_destroy(struct nvgpu_kmem_cache *cache);
void *nvgpu_kmem_cache_alloc(struct nvgpu_kmem_cache *cache);
void nvgpu_kmem_cache_free(struct nvgpu_kmem_cache *cache, void *ptr);
#endif
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