blob: 0283f948ee7bc2c24d06bf8676df3c467d87e2c1 (
plain)
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
65
66
67
68
69
70
71
72
73
74
|
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
*
* (C) COPYRIGHT 2014, 2016, 2020-2021 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the
* GNU General Public License version 2 as published by the Free Software
* Foundation, and any use by you of this program is subject to the terms
* of such GNU license.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you can access it online at
* http://www.gnu.org/licenses/gpl-2.0.html.
*
*/
/**
* Header file for register access history support via debugfs
*
* This interface is made available via /sys/kernel/debug/mali#/regs_history*.
*
* Usage:
* - regs_history_enabled: whether recording of register accesses is enabled.
* Write 'y' to enable, 'n' to disable.
* - regs_history_size: size of the register history buffer, must be > 0
* - regs_history: return the information about last accesses to the registers.
*/
#ifndef _KBASE_REGS_HISTORY_DEBUGFS_H
#define _KBASE_REGS_HISTORY_DEBUGFS_H
struct kbase_device;
/**
* kbase_io_history_init - initialize data struct for register access history
*
* @h: The register history to initialize
* @n: The number of register accesses that the buffer could hold
*
* @return 0 if successfully initialized, failure otherwise
*/
int kbase_io_history_init(struct kbase_io_history *h, u16 n);
/**
* kbase_io_history_term - uninit all resources for the register access history
*
* @h: The register history to terminate
*/
void kbase_io_history_term(struct kbase_io_history *h);
/**
* kbase_io_history_dump - print the register history to the kernel ring buffer
*
* @kbdev: Pointer to kbase_device containing the register history to dump
*/
void kbase_io_history_dump(struct kbase_device *kbdev);
#if defined(CONFIG_DEBUG_FS) && !IS_ENABLED(CONFIG_MALI_NO_MALI)
/**
* kbasep_regs_history_debugfs_init - add debugfs entries for register history
*
* @kbdev: Pointer to kbase_device containing the register history
*/
void kbasep_regs_history_debugfs_init(struct kbase_device *kbdev);
#else /* defined(CONFIG_DEBUG_FS) && !IS_ENABLED(CONFIG_MALI_NO_MALI) */
#endif /* defined(CONFIG_DEBUG_FS) && !IS_ENABLED(CONFIG_MALI_NO_MALI) */
#endif /*_KBASE_REGS_HISTORY_DEBUGFS_H*/
|
