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 <linux/io.h> 11 12#define CREATE_TRACE_POINTS 13#include <trace/events/rwmmio.h> 14 15#ifdef CONFIG_TRACE_MMIO_ACCESS 16void 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} 21EXPORT_SYMBOL_GPL(log_write_mmio); 22EXPORT_TRACEPOINT_SYMBOL_GPL(rwmmio_write); 23 24void 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} 29EXPORT_SYMBOL_GPL(log_post_write_mmio); 30EXPORT_TRACEPOINT_SYMBOL_GPL(rwmmio_post_write); 31 32void 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} 37EXPORT_SYMBOL_GPL(log_read_mmio); 38EXPORT_TRACEPOINT_SYMBOL_GPL(rwmmio_read); 39 40void 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} 45EXPORT_SYMBOL_GPL(log_post_read_mmio); 46EXPORT_TRACEPOINT_SYMBOL_GPL(rwmmio_post_read); 47#endif /* CONFIG_TRACE_MMIO_ACCESS */ 48