/* * Copyright © 2008 Intel Corporation * * 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. * * Authors: *     Jesse Barnes <jbarnes@virtuousgeek.org> * */#ifndef _DRM_MEM_UTIL_H_#define _DRM_MEM_UTIL_H_ #include <linux/vmalloc.h> static __inline__ void *drm_calloc_large(size_t nmemb, size_t size){	if (size != 0 && nmemb > SIZE_MAX / size)		return NULL; 	if (size * nmemb <= PAGE_SIZE)	    return kcalloc(nmemb, size, GFP_KERNEL); 	return __vmalloc(size * nmemb,			 GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL);} /* Modeled after cairo's malloc_ab, it's like calloc but without the zeroing. */static __inline__ void *drm_malloc_ab(size_t nmemb, size_t size){	if (size != 0 && nmemb > SIZE_MAX / size)		return NULL; 	if (size * nmemb <= PAGE_SIZE)	    return kmalloc(nmemb * size, GFP_KERNEL); 	return __vmalloc(size * nmemb,			 GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL);} static __inline void drm_free_large(void *ptr){	if (!is_vmalloc_addr(ptr))		return kfree(ptr); 	vfree(ptr);} #endif