log_mmiorw.h
1.64 KB
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
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2021, The Linux Foundation. All rights reserved.
*/
#ifndef __LOG_MMIORW_H__
#define __LOG_MMIORW_H__
#include <linux/types.h>
#include <linux/atomic.h>
#include <linux/tracepoint-defs.h>
/*
* TODO - io.h is included in NVHE files and these tracepoints are getting
* enabled for NVHE too. To avoid these tracepoints enabling in NHVE below
* condition is introduced.
* !(defined(__KVM_NVHE_HYPERVISOR__))
*/
#if IS_ENABLED(CONFIG_TRACE_MMIO_ACCESS) && !(defined(__KVM_NVHE_HYPERVISOR__))
DECLARE_TRACEPOINT(rwmmio_write);
DECLARE_TRACEPOINT(rwmmio_read);
DECLARE_TRACEPOINT(rwmmio_post_read);
void __log_write_mmio(u64 val, u8 width, volatile void __iomem *addr);
void __log_read_mmio(u8 width, const volatile void __iomem *addr);
void __log_post_read_mmio(u64 val, u8 width, const volatile void __iomem *addr);
#define log_write_mmio(val, width, addr) \
do { \
if (tracepoint_enabled(rwmmio_write)) \
__log_write_mmio(val, width, addr); \
} while (0)
#define log_read_mmio(width, addr) \
do { \
if (tracepoint_enabled(rwmmio_read)) \
__log_read_mmio(width, addr); \
} while (0)
#define log_post_read_mmio(val, width, addr) \
do { \
if (tracepoint_enabled(rwmmio_post_read)) \
__log_post_read_mmio(val, width, addr); \
} while (0)
#else
static inline void log_write_mmio(u64 val, u8 width, volatile void __iomem *addr)
{ }
static inline void log_read_mmio(u8 width, const volatile void __iomem *addr)
{ }
static inline void log_post_read_mmio(u64 val, u8 width, const volatile void __iomem *addr)
{ }
#endif /* CONFIG_TRACE_MMIO_ACCESS */
#endif /* __LOG_MMIORW_H__ */