1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/*
* SPDX-FileCopyrightText: Copyright (c) 2014 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: MIT
*
* 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 _NVLINK_LINUX_H_
#define _NVLINK_LINUX_H_
#include <linux/init.h> // for entry/exit macros
#include <linux/sched.h> // for "struct task_struct"
#include <linux/kernel.h> // for printk priority macros
#include <linux/fs.h>
#define NVLINK_DEVICE_NAME "nvidia-nvlink"
#define NVLINK_NUM_MINOR_DEVICES 1
/*
* @Brief : Debug Breakpoint implementation
*
* @Description :
*
* @returns void
*/
static inline void
dbg_breakpoint(void)
{
/* OS specific breakpoint implemented for NVLink library */
#if defined(DEBUG)
#if defined(CONFIG_X86_REMOTE_DEBUG) || defined(CONFIG_KGDB) || defined(CONFIG_XMON)
#if defined(NVCPU_X86) || defined(NVCPU_X86_64)
__asm__ __volatile__ ("int $3");
#elif defined(NVCPU_ARM)
__asm__ __volatile__ (".word %c0" :: "i" (KGDB_COMPILED_BREAK));
#elif defined(NVCPU_AARCH64)
# warning "Need to implement dbg_breakpoint() for aarch64"
#elif defined(NVCPU_PPC64LE)
__asm__ __volatile__ ("trap");
#endif /* NVCPU_X86 || NVCPU_X86_64 */
#elif defined(CONFIG_KDB)
KDB_ENTER();
#endif /* CONFIG_X86_REMOTE_DEBUG || CONFIG_KGDB || CONFIG_XMON */
#endif /* DEBUG */
}
#endif //_NVLINK_LINUX_H_
|
