| 0,0 → 1,67 |
|---|
| /* |
| * 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_ |
| |
| static __inline__ void *drm_calloc_large(size_t nmemb, size_t size) |
| { |
| void *p; |
| |
| if (size != 0 && nmemb > SIZE_MAX / size) |
| return NULL; |
| |
| if (size * nmemb <= PAGE_SIZE) |
| return calloc(nmemb, size); |
| |
| p = (void*)KernelAlloc(size * nmemb); |
| if ( p != NULL ) |
| memset(p, 0,size * nmemb); |
| |
| return p; |
| } |
| |
| /* 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 (void*)KernelAlloc(size * nmemb); |
| } |
| |
| static __inline void drm_free_large(void *ptr) |
| { |
| if( ((addr_t)ptr & 0xFFF) == 0 ) // !!! |
| KernelFree(ptr); |
| else |
| kfree(ptr); |
| } |
| |
| #endif |