120 lines
3.9 KiB
C
120 lines
3.9 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_NVKMS_MEMORY_H__
|
|
#define __NVIDIA_DRM_GEM_NVKMS_MEMORY_H__
|
|
|
|
#include "nvidia-drm-conftest.h"
|
|
|
|
#if defined(NV_DRM_ATOMIC_MODESET_AVAILABLE)
|
|
|
|
#include "nvidia-drm-gem.h"
|
|
|
|
struct nv_drm_gem_nvkms_memory {
|
|
struct nv_drm_gem_object base;
|
|
|
|
/*
|
|
* Lock to protect concurrent writes to physically_mapped, pPhysicalAddress,
|
|
* and pWriteCombinedIORemapAddress.
|
|
*
|
|
* __nv_drm_gem_nvkms_map(), the sole writer, is structured such that
|
|
* readers are not required to hold the lock.
|
|
*/
|
|
struct mutex map_lock;
|
|
bool physically_mapped;
|
|
void *pPhysicalAddress;
|
|
void *pWriteCombinedIORemapAddress;
|
|
|
|
struct page **pages;
|
|
unsigned long pages_count;
|
|
};
|
|
|
|
extern const struct nv_drm_gem_object_funcs nv_gem_nvkms_memory_ops;
|
|
|
|
static inline struct nv_drm_gem_nvkms_memory *to_nv_nvkms_memory(
|
|
struct nv_drm_gem_object *nv_gem)
|
|
{
|
|
if (nv_gem != NULL) {
|
|
return container_of(nv_gem, struct nv_drm_gem_nvkms_memory, base);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct nv_drm_gem_nvkms_memory *to_nv_nvkms_memory_const(
|
|
const struct nv_drm_gem_object *nv_gem)
|
|
{
|
|
if (nv_gem != NULL) {
|
|
return container_of(nv_gem, struct nv_drm_gem_nvkms_memory, base);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static inline
|
|
struct nv_drm_gem_nvkms_memory *nv_drm_gem_object_nvkms_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_nvkms_memory_ops) {
|
|
nv_drm_gem_object_unreference_unlocked(nv_gem);
|
|
return NULL;
|
|
}
|
|
|
|
return to_nv_nvkms_memory(nv_gem);
|
|
}
|
|
|
|
int nv_drm_dumb_create(
|
|
struct drm_file *file_priv,
|
|
struct drm_device *dev, struct drm_mode_create_dumb *args);
|
|
|
|
int nv_drm_gem_import_nvkms_memory_ioctl(struct drm_device *dev,
|
|
void *data, struct drm_file *filep);
|
|
|
|
int nv_drm_gem_export_nvkms_memory_ioctl(struct drm_device *dev,
|
|
void *data, struct drm_file *filep);
|
|
|
|
int nv_drm_gem_alloc_nvkms_memory_ioctl(struct drm_device *dev,
|
|
void *data, struct drm_file *filep);
|
|
|
|
int nv_drm_dumb_map_offset(struct drm_file *file,
|
|
struct drm_device *dev, uint32_t handle,
|
|
uint64_t *offset);
|
|
|
|
#if defined(NV_DRM_DRIVER_HAS_DUMB_DESTROY)
|
|
int nv_drm_dumb_destroy(struct drm_file *file,
|
|
struct drm_device *dev,
|
|
uint32_t handle);
|
|
#endif /* NV_DRM_DRIVER_HAS_DUMB_DESTROY */
|
|
|
|
struct drm_gem_object *nv_drm_gem_nvkms_prime_import(
|
|
struct drm_device *dev,
|
|
struct drm_gem_object *gem);
|
|
|
|
#endif
|
|
|
|
#endif /* __NVIDIA_DRM_GEM_NVKMS_MEMORY_H__ */
|