mirror of
https://github.com/NVIDIA/open-gpu-kernel-modules.git
synced 2024-12-12 03:08:56 +01:00
73 lines
2.4 KiB
C
73 lines
2.4 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
|
||
|
|
*
|
||
|
|
* 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 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
|
||
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS 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 __NVIDIA_DRM_GEM_USER_MEMORY_H__
|
||
|
|
#define __NVIDIA_DRM_GEM_USER_MEMORY_H__
|
||
|
|
|
||
|
|
#include "nvidia-drm-conftest.h"
|
||
|
|
|
||
|
|
#if defined(NV_DRM_AVAILABLE)
|
||
|
|
|
||
|
|
#include "nvidia-drm-gem.h"
|
||
|
|
|
||
|
|
struct nv_drm_gem_user_memory {
|
||
|
|
struct nv_drm_gem_object base;
|
||
|
|
struct page **pages;
|
||
|
|
unsigned long pages_count;
|
||
|
|
};
|
||
|
|
|
||
|
|
extern const struct nv_drm_gem_object_funcs __nv_gem_user_memory_ops;
|
||
|
|
|
||
|
|
static inline struct nv_drm_gem_user_memory *to_nv_user_memory(
|
||
|
|
struct nv_drm_gem_object *nv_gem)
|
||
|
|
{
|
||
|
|
if (nv_gem != NULL) {
|
||
|
|
return container_of(nv_gem, struct nv_drm_gem_user_memory, base);
|
||
|
|
}
|
||
|
|
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
int nv_drm_gem_import_userspace_memory_ioctl(struct drm_device *dev,
|
||
|
|
void *data, struct drm_file *filep);
|
||
|
|
|
||
|
|
static inline
|
||
|
|
struct nv_drm_gem_user_memory *nv_drm_gem_object_user_memory_lookup(
|
||
|
|
struct drm_device *dev,
|
||
|
|
struct drm_file *filp,
|
||
|
|
u32 handle)
|
||
|
|
{
|
||
|
|
struct nv_drm_gem_object *nv_gem =
|
||
|
|
nv_drm_gem_object_lookup(dev, filp, handle);
|
||
|
|
|
||
|
|
if (nv_gem != NULL && nv_gem->ops != &__nv_gem_user_memory_ops) {
|
||
|
|
nv_drm_gem_object_unreference_unlocked(nv_gem);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
return to_nv_user_memory(nv_gem);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* __NVIDIA_DRM_GEM_USER_MEMORY_H__ */
|