Rev 5078 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4075 | Serge | 1 | /************************************************************************** |
| 2 | * |
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| 3 | * Copyright (c) 2006-2009 VMware, Inc., Palo Alto, CA., USA |
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| 4 | * All Rights Reserved. |
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| 5 | * |
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| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 7 | * copy of this software and associated documentation files (the |
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| 8 | * "Software"), to deal in the Software without restriction, including |
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| 9 | * without limitation the rights to use, copy, modify, merge, publish, |
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| 10 | * distribute, sub license, and/or sell copies of the Software, and to |
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| 11 | * permit persons to whom the Software is furnished to do so, subject to |
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| 12 | * the following conditions: |
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| 13 | * |
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| 14 | * The above copyright notice and this permission notice (including the |
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| 15 | * next paragraph) shall be included in all copies or substantial portions |
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| 16 | * of the Software. |
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| 17 | * |
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| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 20 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
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| 21 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, |
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| 22 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
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| 23 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
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| 24 | * USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 25 | * |
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| 26 | **************************************************************************/ |
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| 27 | |||
| 28 | #define pr_fmt(fmt) "[TTM] " fmt |
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| 29 | |||
| 30 | #include |
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| 31 | #include |
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| 32 | #include |
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| 33 | #include |
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| 34 | #include |
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| 35 | #include |
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| 36 | #include |
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| 37 | #include |
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| 38 | #include |
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| 39 | |||
| 6296 | serge | 40 | #define TTM_MEMORY_ALLOC_RETRIES 4 |
| 4075 | Serge | 41 | |
| 42 | |||
| 5078 | serge | 43 | int ttm_mem_global_init(struct ttm_mem_global *glob) |
| 4075 | Serge | 44 | { |
| 45 | int ret; |
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| 5078 | serge | 46 | int i; |
| 4075 | Serge | 47 | |
| 5078 | serge | 48 | spin_lock_init(&glob->lock); |
| 4075 | Serge | 49 | |
| 50 | |||
| 51 | |||
| 5078 | serge | 52 | ttm_page_alloc_init(glob, 4*1024); |
| 4075 | Serge | 53 | |
| 54 | return 0; |
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| 5078 | serge | 55 | out_no_zone: |
| 56 | ttm_mem_global_release(glob); |
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| 57 | return ret; |
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| 4075 | Serge | 58 | } |
| 5078 | serge | 59 | EXPORT_SYMBOL(ttm_mem_global_init); |
| 4075 | Serge | 60 | |
| 61 | void ttm_mem_global_release(struct ttm_mem_global *glob) |
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| 62 | { |
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| 63 | unsigned int i; |
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| 64 | |||
| 65 | /* let the page allocator first stop the shrink work. */ |
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| 5078 | serge | 66 | // ttm_page_alloc_fini(); |
| 67 | // ttm_dma_page_alloc_fini(); |
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| 4075 | Serge | 68 | |
| 5078 | serge | 69 | |
| 4075 | Serge | 70 | } |
| 71 | |||
| 6296 | serge | 72 | void ttm_mem_global_free(struct ttm_mem_global *glob, |
| 73 | uint64_t amount) |
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| 74 | { |
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| 4075 | Serge | 75 | |
| 6296 | serge | 76 | } |
| 77 | EXPORT_SYMBOL(ttm_mem_global_free); |
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| 4075 | Serge | 78 | |
| 6296 | serge | 79 | int ttm_mem_global_alloc(struct ttm_mem_global *glob, uint64_t memory, |
| 80 | bool no_wait, bool interruptible) |
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| 81 | { |
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| 82 | /** |
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| 83 | * Normal allocations of kernel memory are registered in |
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| 84 | * all zones. |
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| 85 | */ |
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| 86 | |||
| 87 | return 0; |
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| 88 | } |
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| 89 | EXPORT_SYMBOL(ttm_mem_global_alloc); |
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| 90 | |||
| 4075 | Serge | 91 | size_t ttm_round_pot(size_t size) |
| 92 | { |
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| 93 | if ((size & (size - 1)) == 0) |
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| 94 | return size; |
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| 95 | else if (size > PAGE_SIZE) |
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| 96 | return PAGE_ALIGN(size); |
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| 97 | else { |
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| 98 | size_t tmp_size = 4; |
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| 99 | |||
| 100 | while (tmp_size < size) |
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| 101 | tmp_size <<= 1; |
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| 102 | |||
| 103 | return tmp_size; |
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| 104 | } |
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| 105 | return 0; |
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| 106 | } |
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| 107 | EXPORT_SYMBOL(ttm_round_pot); |