OpenCloudOS-Kernel/drivers/gpu/drm/exynos/exynos_drm_buf.h

48 lines
1.9 KiB
C

/* exynos_drm_buf.h
*
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
* Author: Inki Dae <inki.dae@samsung.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef _EXYNOS_DRM_BUF_H_
#define _EXYNOS_DRM_BUF_H_
/* create and initialize buffer object. */
struct exynos_drm_gem_buf *exynos_drm_init_buf(struct drm_device *dev,
unsigned int size);
/* destroy buffer object. */
void exynos_drm_fini_buf(struct drm_device *dev,
struct exynos_drm_gem_buf *buffer);
/* allocate physical memory region and setup sgt and pages. */
int exynos_drm_alloc_buf(struct drm_device *dev,
struct exynos_drm_gem_buf *buf,
unsigned int flags);
/* release physical memory region, sgt and pages. */
void exynos_drm_free_buf(struct drm_device *dev,
unsigned int flags,
struct exynos_drm_gem_buf *buffer);
#endif