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svcmobrel-release
2022-07-21 16:03:29 -07:00
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drivers/gpu/nvgpu/common/sync/channel_sync_priv.h Normal file
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/*
* Nvgpu Channel Synchronization Abstraction
*
* Copyright (c) 2014-2020, 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 NVGPU_CHANNEL_SYNC_PRIV_H
#define NVGPU_CHANNEL_SYNC_PRIV_H
/*
* These APIs are used for job synchronization that we know about in the
* driver. If submits happen in userspace only, none of this will be needed and
* won't be included. This is here just to double check for now.
*/
#ifdef CONFIG_NVGPU_KERNEL_MODE_SUBMIT
#include <nvgpu/atomic.h>
#include <nvgpu/types.h>
struct priv_cmd_entry;
struct nvgpu_fence_type;
struct nvgpu_channel_sync_ops;
/*
* This struct is private and should not be used directly. Users should
* instead use the public APIs starting with nvgpu_channel_sync_*
*/
struct nvgpu_channel_sync {
nvgpu_atomic_t refcount;
const struct nvgpu_channel_sync_ops *ops;
};
/*
* This struct is private and should not be used directly. Users should
* instead use the public APIs starting with nvgpu_channel_sync_*
*/
struct nvgpu_channel_sync_ops {
int (*wait_fence_raw)(struct nvgpu_channel_sync *s, u32 id, u32 thresh,
struct priv_cmd_entry **entry);
int (*wait_fence_fd)(struct nvgpu_channel_sync *s, int fd,
struct priv_cmd_entry **entry, u32 max_wait_cmds);
int (*incr)(struct nvgpu_channel_sync *s,
struct priv_cmd_entry **entry,
struct nvgpu_fence_type *fence,
bool need_sync_fence);
int (*incr_user)(struct nvgpu_channel_sync *s,
struct priv_cmd_entry **entry,
struct nvgpu_fence_type *fence,
bool wfi,
bool need_sync_fence);
void (*mark_progress)(struct nvgpu_channel_sync *s,
bool register_irq);
void (*set_min_eq_max)(struct nvgpu_channel_sync *s);
void (*destroy)(struct nvgpu_channel_sync *s);
};
#endif /* CONFIG_NVGPU_KERNEL_MODE_SUBMIT */
#endif /* NVGPU_CHANNEL_SYNC_PRIV_H */