| /* |
| * drivers/amlogic/drm/meson_gem.h |
| * |
| * Copyright (C) 2017 Amlogic, Inc. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| */ |
| |
| #ifndef __AM_MESON_GEM_H |
| #define __AM_MESON_GEM_H |
| #include <drm/drm_gem.h> |
| #include <uapi/drm/meson_drm.h> |
| #include <ion/ion_priv.h> |
| |
| #include "meson_drv.h" |
| |
| struct am_meson_gem_object { |
| struct drm_gem_object base; |
| unsigned int flags; |
| |
| /*for buffer create from ion heap */ |
| struct ion_handle *handle; |
| bool bscatter; |
| |
| /* for buffer import form other driver */ |
| phys_addr_t addr; |
| struct sg_table *sg; |
| }; |
| |
| /* GEM MANAGER CREATE*/ |
| int am_meson_gem_create(struct meson_drm *drmdrv); |
| |
| void am_meson_gem_cleanup(struct meson_drm *drmdrv); |
| |
| int am_meson_gem_mmap( |
| struct file *filp, |
| struct vm_area_struct *vma); |
| |
| /* GEM DUMB OPERATIONS */ |
| int am_meson_gem_dumb_create( |
| struct drm_file *file_priv, |
| struct drm_device *dev, |
| struct drm_mode_create_dumb *args); |
| |
| int am_meson_gem_dumb_destroy( |
| struct drm_file *file, |
| struct drm_device *dev, |
| uint32_t handle); |
| |
| int am_meson_gem_create_ioctl( |
| struct drm_device *dev, |
| void *data, |
| struct drm_file *file_priv); |
| |
| int am_meson_gem_dumb_map_offset( |
| struct drm_file *file_priv, |
| struct drm_device *dev, |
| uint32_t handle, |
| uint64_t *offset); |
| |
| /* GEM OBJECT OPERATIONS */ |
| struct am_meson_gem_object *am_meson_gem_object_create( |
| struct drm_device *dev, unsigned int flags, |
| unsigned long size, struct ion_client *client); |
| |
| void am_meson_gem_object_free(struct drm_gem_object *gem_obj); |
| |
| int am_meson_gem_object_mmap( |
| struct am_meson_gem_object *obj, |
| struct vm_area_struct *vma); |
| |
| extern int am_meson_gem_object_get_phyaddr( |
| struct meson_drm *drm, |
| struct am_meson_gem_object *meson_gem); |
| |
| /* GEM PRIME OPERATIONS */ |
| struct sg_table *am_meson_gem_prime_get_sg_table( |
| struct drm_gem_object *obj); |
| |
| struct drm_gem_object *am_meson_gem_prime_import_sg_table( |
| struct drm_device *dev, |
| struct dma_buf_attachment *attach, |
| struct sg_table *sgt); |
| |
| void *am_meson_gem_prime_vmap( |
| struct drm_gem_object *obj); |
| |
| void am_meson_gem_prime_vunmap( |
| struct drm_gem_object *obj, |
| void *vaddr); |
| |
| int am_meson_gem_prime_mmap( |
| struct drm_gem_object *obj, |
| struct vm_area_struct *vma); |
| |
| #endif /* __AM_MESON_GEM_H */ |