Jetpack/kernel/nvidia/drivers/misc/eventlib/eventlib_tbuf.h

47 lines
1.7 KiB
C

/*
* Copyright (c) 2016-2017, 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 EVENTLIB_TBUF_H
#define EVENTLIB_TBUF_H
#include "eventlib.h"
#include "tracebuf.h"
struct eventlib_tbuf_w2r {
uint32_t compat;
uint32_t _pad; /* ensure 64-bit alignment for tracebuf */
uint8_t tbuf[0]; /* rest of space managed by tracebuf library */
} __attribute__((__packed__));
struct eventlib_tbuf_ctx {
struct tracectx tbuf_ctx;
/* Events with up to this seqid have been either already delivered,
* or already considered lost
*/
uint64_t seqid_ack;
};
extern int tbuf_init(struct eventlib_ctx *ctx);
#endif