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