| Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 1 | /* exynos_drm_buf.h |
| 2 | * |
| 3 | * Copyright (c) 2011 Samsung Electronics Co., Ltd. |
| 4 | * Author: Inki Dae <inki.dae@samsung.com> |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 7 | * copy of this software and associated documentation files (the "Software"), |
| 8 | * to deal in the Software without restriction, including without limitation |
| 9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 10 | * and/or sell copies of the Software, and to permit persons to whom the |
| 11 | * Software is furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice (including the next |
| 14 | * paragraph) shall be included in all copies or substantial portions of the |
| 15 | * Software. |
| 16 | * |
| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 20 | * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 21 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 22 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 23 | * OTHER DEALINGS IN THE SOFTWARE. |
| 24 | */ |
| 25 | |
| 26 | #ifndef _EXYNOS_DRM_BUF_H_ |
| 27 | #define _EXYNOS_DRM_BUF_H_ |
| 28 | |
| 29 | /* |
| 30 | * exynos drm buffer entry structure. |
| 31 | * |
| 32 | * @paddr: physical address of allocated memory. |
| 33 | * @vaddr: kernel virtual address of allocated memory. |
| 34 | * @size: size of allocated memory. |
| 35 | */ |
| 36 | struct exynos_drm_buf_entry { |
| 37 | dma_addr_t paddr; |
| 38 | void __iomem *vaddr; |
| 39 | unsigned int size; |
| 40 | }; |
| 41 | |
| 42 | /* allocate physical memory. */ |
| 43 | struct exynos_drm_buf_entry *exynos_drm_buf_create(struct drm_device *dev, |
| 44 | unsigned int size); |
| 45 | |
| Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 46 | /* get physical memory information of a drm framebuffer. */ |
| 47 | struct exynos_drm_buf_entry *exynos_drm_fb_get_buf(struct drm_framebuffer *fb); |
| 48 | |
| Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 49 | /* remove allocated physical memory. */ |
| 50 | void exynos_drm_buf_destroy(struct drm_device *dev, |
| 51 | struct exynos_drm_buf_entry *entry); |
| 52 | |
| 53 | #endif |