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| Rev | Author | Line No. | Line |
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| 3763 | Serge | 1 | /* |
| 2 | * Copyright © 2008 Intel Corporation |
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| 3 | * |
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| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 5 | * copy of this software and associated documentation files (the "Software"), |
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| 6 | * to deal in the Software without restriction, including without limitation |
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| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 9 | * Software is furnished to do so, subject to the following conditions: |
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| 10 | * |
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| 11 | * The above copyright notice and this permission notice (including the next |
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| 12 | * paragraph) shall be included in all copies or substantial portions of the |
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| 13 | * Software. |
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| 14 | * |
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| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
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| 21 | * IN THE SOFTWARE. |
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| 22 | * |
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| 23 | * Authors: |
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| 24 | * Jesse Barnes |
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| 25 | * |
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| 26 | */ |
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| 27 | #ifndef _DRM_MEM_UTIL_H_ |
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| 28 | #define _DRM_MEM_UTIL_H_ |
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| 29 | |||
| 4559 | Serge | 30 | #include |
| 31 | |||
| 3763 | Serge | 32 | static __inline__ void *drm_calloc_large(size_t nmemb, size_t size) |
| 33 | { |
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| 34 | void *p; |
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| 35 | |||
| 36 | if (size != 0 && nmemb > SIZE_MAX / size) |
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| 37 | return NULL; |
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| 38 | |||
| 39 | if (size * nmemb <= PAGE_SIZE) |
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| 4559 | Serge | 40 | return kcalloc(nmemb, size, GFP_KERNEL); |
| 3763 | Serge | 41 | |
| 42 | p = (void*)KernelAlloc(size * nmemb); |
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| 43 | if ( p != NULL ) |
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| 44 | memset(p, 0,size * nmemb); |
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| 45 | |||
| 46 | return p; |
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| 47 | } |
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| 48 | |||
| 49 | /* Modeled after cairo's malloc_ab, it's like calloc but without the zeroing. */ |
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| 50 | static __inline__ void *drm_malloc_ab(size_t nmemb, size_t size) |
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| 51 | { |
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| 52 | if (size != 0 && nmemb > SIZE_MAX / size) |
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| 53 | return NULL; |
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| 54 | |||
| 55 | if (size * nmemb <= PAGE_SIZE) |
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| 56 | return kmalloc(nmemb * size, GFP_KERNEL); |
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| 57 | |||
| 58 | return (void*)KernelAlloc(size * nmemb); |
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| 59 | } |
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| 60 | |||
| 61 | static __inline void drm_free_large(void *ptr) |
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| 62 | { |
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| 63 | if( ((addr_t)ptr & 0xFFF) == 0 ) // !!! |
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| 64 | KernelFree(ptr); |
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| 65 | else |
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| 66 | kfree(ptr); |
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| 67 | } |
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| 68 | |||
| 69 | #endif |