1 /* 2 * Copyright © 2008 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21 * IN THE SOFTWARE. 22 * 23 * Authors: 24 * Jesse Barnes <jbarnes@virtuousgeek.org> 25 * 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #ifndef _DRM_MEM_UTIL_H_ 32 #define _DRM_MEM_UTIL_H_ 33 34 #include <sys/types.h> 35 #include <sys/malloc.h> 36 37 static __inline__ void *drm_calloc_large(size_t nmemb, size_t size) 38 { 39 if (size != 0 && nmemb > SIZE_MAX / size) 40 return NULL; 41 42 return malloc(nmemb * size, DRM_MEM_DRIVER, M_NOWAIT | M_ZERO); 43 } 44 45 /* Modeled after cairo's malloc_ab, it's like calloc but without the zeroing. */ 46 static __inline__ void *drm_malloc_ab(size_t nmemb, size_t size) 47 { 48 if (size != 0 && nmemb > SIZE_MAX / size) 49 return NULL; 50 51 return malloc(nmemb * size, DRM_MEM_DRIVER, M_NOWAIT); 52 } 53 54 static __inline void drm_free_large(void *ptr) 55 { 56 free(ptr, DRM_MEM_DRIVER); 57 } 58 59 #endif 60