| 1 | // SPDX-License-Identifier: GPL-2.0-only |
| 2 | /* |
| 3 | * Register read and write tracepoints |
| 4 | * |
| 5 | * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved. |
| 6 | */ |
| 7 | |
| 8 | #include <linux/ftrace.h> |
| 9 | #include <linux/module.h> |
| 10 | #include <asm-generic/io.h> |
| 11 | |
| 12 | #define CREATE_TRACE_POINTS |
| 13 | #include <trace/events/rwmmio.h> |
| 14 | |
| 15 | #ifdef CONFIG_TRACE_MMIO_ACCESS |
| 16 | void log_write_mmio(u64 val, u8 width, volatile void __iomem *addr, |
| 17 | unsigned long caller_addr, unsigned long caller_addr0) |
| 18 | { |
| 19 | trace_rwmmio_write(caller_addr, caller_addr0, val, width, addr); |
| 20 | } |
| 21 | EXPORT_SYMBOL_GPL(log_write_mmio); |
| 22 | EXPORT_TRACEPOINT_SYMBOL_GPL(rwmmio_write); |
| 23 | |
| 24 | void log_post_write_mmio(u64 val, u8 width, volatile void __iomem *addr, |
| 25 | unsigned long caller_addr, unsigned long caller_addr0) |
| 26 | { |
| 27 | trace_rwmmio_post_write(caller_addr, caller_addr0, val, width, addr); |
| 28 | } |
| 29 | EXPORT_SYMBOL_GPL(log_post_write_mmio); |
| 30 | EXPORT_TRACEPOINT_SYMBOL_GPL(rwmmio_post_write); |
| 31 | |
| 32 | void log_read_mmio(u8 width, const volatile void __iomem *addr, |
| 33 | unsigned long caller_addr, unsigned long caller_addr0) |
| 34 | { |
| 35 | trace_rwmmio_read(caller_addr, caller_addr0, width, addr); |
| 36 | } |
| 37 | EXPORT_SYMBOL_GPL(log_read_mmio); |
| 38 | EXPORT_TRACEPOINT_SYMBOL_GPL(rwmmio_read); |
| 39 | |
| 40 | void log_post_read_mmio(u64 val, u8 width, const volatile void __iomem *addr, |
| 41 | unsigned long caller_addr, unsigned long caller_addr0) |
| 42 | { |
| 43 | trace_rwmmio_post_read(caller_addr, caller_addr0, val, width, addr); |
| 44 | } |
| 45 | EXPORT_SYMBOL_GPL(log_post_read_mmio); |
| 46 | EXPORT_TRACEPOINT_SYMBOL_GPL(rwmmio_post_read); |
| 47 | #endif /* CONFIG_TRACE_MMIO_ACCESS */ |