| Terje Bergstrom | 6579324 | 2013-03-22 16:34:03 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Tegra host1x Memory Management Abstraction header |
| 3 | * |
| 4 | * Copyright (c) 2012-2013, NVIDIA Corporation. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it |
| 7 | * under the terms and conditions of the GNU General Public License, |
| 8 | * version 2, as published by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 13 | * more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 17 | */ |
| 18 | |
| 19 | #ifndef _HOST1X_BO_H |
| 20 | #define _HOST1X_BO_H |
| 21 | |
| 22 | struct host1x_bo; |
| 23 | |
| 24 | struct host1x_bo_ops { |
| 25 | struct host1x_bo *(*get)(struct host1x_bo *bo); |
| 26 | void (*put)(struct host1x_bo *bo); |
| 27 | dma_addr_t (*pin)(struct host1x_bo *bo, struct sg_table **sgt); |
| 28 | void (*unpin)(struct host1x_bo *bo, struct sg_table *sgt); |
| 29 | void *(*mmap)(struct host1x_bo *bo); |
| 30 | void (*munmap)(struct host1x_bo *bo, void *addr); |
| 31 | void *(*kmap)(struct host1x_bo *bo, unsigned int pagenum); |
| 32 | void (*kunmap)(struct host1x_bo *bo, unsigned int pagenum, void *addr); |
| 33 | }; |
| 34 | |
| 35 | struct host1x_bo { |
| 36 | const struct host1x_bo_ops *ops; |
| 37 | }; |
| 38 | |
| 39 | static inline void host1x_bo_init(struct host1x_bo *bo, |
| 40 | const struct host1x_bo_ops *ops) |
| 41 | { |
| 42 | bo->ops = ops; |
| 43 | } |
| 44 | |
| 45 | static inline struct host1x_bo *host1x_bo_get(struct host1x_bo *bo) |
| 46 | { |
| 47 | return bo->ops->get(bo); |
| 48 | } |
| 49 | |
| 50 | static inline void host1x_bo_put(struct host1x_bo *bo) |
| 51 | { |
| 52 | bo->ops->put(bo); |
| 53 | } |
| 54 | |
| 55 | static inline dma_addr_t host1x_bo_pin(struct host1x_bo *bo, |
| 56 | struct sg_table **sgt) |
| 57 | { |
| 58 | return bo->ops->pin(bo, sgt); |
| 59 | } |
| 60 | |
| 61 | static inline void host1x_bo_unpin(struct host1x_bo *bo, struct sg_table *sgt) |
| 62 | { |
| 63 | bo->ops->unpin(bo, sgt); |
| 64 | } |
| 65 | |
| 66 | static inline void *host1x_bo_mmap(struct host1x_bo *bo) |
| 67 | { |
| 68 | return bo->ops->mmap(bo); |
| 69 | } |
| 70 | |
| 71 | static inline void host1x_bo_munmap(struct host1x_bo *bo, void *addr) |
| 72 | { |
| 73 | bo->ops->munmap(bo, addr); |
| 74 | } |
| 75 | |
| 76 | static inline void *host1x_bo_kmap(struct host1x_bo *bo, unsigned int pagenum) |
| 77 | { |
| 78 | return bo->ops->kmap(bo, pagenum); |
| 79 | } |
| 80 | |
| 81 | static inline void host1x_bo_kunmap(struct host1x_bo *bo, |
| 82 | unsigned int pagenum, void *addr) |
| 83 | { |
| 84 | bo->ops->kunmap(bo, pagenum, addr); |
| 85 | } |
| 86 | |
| 87 | #endif |