Rebecca Schultz Zavin | c30707b | 2013-12-13 19:38:38 -0800 | [diff] [blame] | 1 | /* |
| 2 | * drivers/staging/android/ion/ion_heap.c |
| 3 | * |
| 4 | * Copyright (C) 2011 Google, Inc. |
| 5 | * |
| 6 | * This software is licensed under the terms of the GNU General Public |
| 7 | * License version 2, as published by the Free Software Foundation, and |
| 8 | * may be copied, distributed, and modified under those terms. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | */ |
| 16 | |
| 17 | #include <linux/err.h> |
| 18 | #include "ion.h" |
| 19 | #include "ion_priv.h" |
| 20 | |
| 21 | struct ion_heap *ion_heap_create(struct ion_platform_heap *heap_data) |
| 22 | { |
| 23 | struct ion_heap *heap = NULL; |
| 24 | |
| 25 | switch (heap_data->type) { |
| 26 | case ION_HEAP_TYPE_SYSTEM_CONTIG: |
| 27 | heap = ion_system_contig_heap_create(heap_data); |
| 28 | break; |
| 29 | case ION_HEAP_TYPE_SYSTEM: |
| 30 | heap = ion_system_heap_create(heap_data); |
| 31 | break; |
| 32 | case ION_HEAP_TYPE_CARVEOUT: |
| 33 | heap = ion_carveout_heap_create(heap_data); |
| 34 | break; |
| 35 | default: |
| 36 | pr_err("%s: Invalid heap type %d\n", __func__, |
| 37 | heap_data->type); |
| 38 | return ERR_PTR(-EINVAL); |
| 39 | } |
| 40 | |
| 41 | if (IS_ERR_OR_NULL(heap)) { |
| 42 | pr_err("%s: error creating heap %s type %d base %lu size %u\n", |
| 43 | __func__, heap_data->name, heap_data->type, |
| 44 | heap_data->base, heap_data->size); |
| 45 | return ERR_PTR(-EINVAL); |
| 46 | } |
| 47 | |
| 48 | heap->name = heap_data->name; |
| 49 | heap->id = heap_data->id; |
| 50 | return heap; |
| 51 | } |
| 52 | |
| 53 | void ion_heap_destroy(struct ion_heap *heap) |
| 54 | { |
| 55 | if (!heap) |
| 56 | return; |
| 57 | |
| 58 | switch (heap->type) { |
| 59 | case ION_HEAP_TYPE_SYSTEM_CONTIG: |
| 60 | ion_system_contig_heap_destroy(heap); |
| 61 | break; |
| 62 | case ION_HEAP_TYPE_SYSTEM: |
| 63 | ion_system_heap_destroy(heap); |
| 64 | break; |
| 65 | case ION_HEAP_TYPE_CARVEOUT: |
| 66 | ion_carveout_heap_destroy(heap); |
| 67 | break; |
| 68 | default: |
| 69 | pr_err("%s: Invalid heap type %d\n", __func__, |
| 70 | heap->type); |
| 71 | } |
| 72 | } |