48 lines · c
1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Register read and write tracepoints4 *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_POINTS13#include <trace/events/rwmmio.h>14 15#ifdef CONFIG_TRACE_MMIO_ACCESS16void 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