1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (c) 2021, The Linux Foundation. All rights reserved.
4*4882a593Smuzhiyun */
5*4882a593Smuzhiyun #ifndef __LOG_MMIORW_H__
6*4882a593Smuzhiyun #define __LOG_MMIORW_H__
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include <linux/types.h>
9*4882a593Smuzhiyun #include <linux/atomic.h>
10*4882a593Smuzhiyun #include <linux/tracepoint-defs.h>
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun /*
13*4882a593Smuzhiyun * TODO - io.h is included in NVHE files and these tracepoints are getting
14*4882a593Smuzhiyun * enabled for NVHE too. To avoid these tracepoints enabling in NHVE below
15*4882a593Smuzhiyun * condition is introduced.
16*4882a593Smuzhiyun * !(defined(__DISABLE_TRACE_MMIO__))
17*4882a593Smuzhiyun */
18*4882a593Smuzhiyun #if IS_ENABLED(CONFIG_TRACE_MMIO_ACCESS) && !(defined(__DISABLE_TRACE_MMIO__))
19*4882a593Smuzhiyun DECLARE_TRACEPOINT(rwmmio_write);
20*4882a593Smuzhiyun DECLARE_TRACEPOINT(rwmmio_read);
21*4882a593Smuzhiyun DECLARE_TRACEPOINT(rwmmio_post_read);
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun void __log_write_mmio(u64 val, u8 width, volatile void __iomem *addr);
24*4882a593Smuzhiyun void __log_read_mmio(u8 width, const volatile void __iomem *addr);
25*4882a593Smuzhiyun void __log_post_read_mmio(u64 val, u8 width, const volatile void __iomem *addr);
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun #define log_write_mmio(val, width, addr) \
28*4882a593Smuzhiyun do { \
29*4882a593Smuzhiyun if (tracepoint_enabled(rwmmio_write)) \
30*4882a593Smuzhiyun __log_write_mmio(val, width, addr); \
31*4882a593Smuzhiyun } while (0)
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun #define log_read_mmio(width, addr) \
34*4882a593Smuzhiyun do { \
35*4882a593Smuzhiyun if (tracepoint_enabled(rwmmio_read)) \
36*4882a593Smuzhiyun __log_read_mmio(width, addr); \
37*4882a593Smuzhiyun } while (0)
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun #define log_post_read_mmio(val, width, addr) \
40*4882a593Smuzhiyun do { \
41*4882a593Smuzhiyun if (tracepoint_enabled(rwmmio_post_read)) \
42*4882a593Smuzhiyun __log_post_read_mmio(val, width, addr); \
43*4882a593Smuzhiyun } while (0)
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun #else
log_write_mmio(u64 val,u8 width,volatile void __iomem * addr)46*4882a593Smuzhiyun static inline void log_write_mmio(u64 val, u8 width, volatile void __iomem *addr)
47*4882a593Smuzhiyun { }
log_read_mmio(u8 width,const volatile void __iomem * addr)48*4882a593Smuzhiyun static inline void log_read_mmio(u8 width, const volatile void __iomem *addr)
49*4882a593Smuzhiyun { }
log_post_read_mmio(u64 val,u8 width,const volatile void __iomem * addr)50*4882a593Smuzhiyun static inline void log_post_read_mmio(u64 val, u8 width, const volatile void __iomem *addr)
51*4882a593Smuzhiyun { }
52*4882a593Smuzhiyun #endif /* CONFIG_TRACE_MMIO_ACCESS */
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun #endif /* __LOG_MMIORW_H__ */
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