39 lines
1 KiB
C
39 lines
1 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Register read and write tracepoints
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*
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* Copyright (c) 2021, The Linux Foundation. All rights reserved.
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*/
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#include <linux/kallsyms.h>
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#include <linux/uaccess.h>
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#include <linux/module.h>
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#include <linux/ftrace.h>
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#include <linux/log_mmiorw.h>
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#define CREATE_TRACE_POINTS
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#include <trace/events/rwmmio.h>
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#ifdef CONFIG_TRACE_MMIO_ACCESS
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void __log_write_mmio(u64 val, u8 width, volatile void __iomem *addr)
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{
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trace_rwmmio_write(CALLER_ADDR0, val, width, addr);
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}
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EXPORT_SYMBOL_GPL(__log_write_mmio);
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EXPORT_TRACEPOINT_SYMBOL_GPL(rwmmio_write);
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void __log_read_mmio(u8 width, const volatile void __iomem *addr)
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{
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trace_rwmmio_read(CALLER_ADDR0, width, addr);
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}
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EXPORT_SYMBOL_GPL(__log_read_mmio);
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EXPORT_TRACEPOINT_SYMBOL_GPL(rwmmio_read);
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void __log_post_read_mmio(u64 val, u8 width, const volatile void __iomem *addr)
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{
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trace_rwmmio_post_read(CALLER_ADDR0, val, width, addr);
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}
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EXPORT_SYMBOL_GPL(__log_post_read_mmio);
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EXPORT_TRACEPOINT_SYMBOL_GPL(rwmmio_post_read);
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#endif
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