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aa5c697988
Use the ftrace infrastructure to conditionally trace UFS UIC command events. New trace event "ufshcd_uic_command" is created, which samples the following UFS UIC command data: - Device name - Optional identification string - UIC command opcode - UIC command argument1 - UIC command argument2 - UIC command argement3 Usage: echo 1 > /sys/kernel/debug/tracing/events/ufs/enable cat /sys/kernel/debug/tracing/trace_pipe Link: https://lore.kernel.org/r/20200615072235.23042-3-stanley.chu@mediatek.com Acked-by: Avri Altman <avri.altman@wdc.com> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
314 lines
7.8 KiB
C
314 lines
7.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.
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*/
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM ufs
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#if !defined(_TRACE_UFS_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_UFS_H
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#include <linux/tracepoint.h>
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#define UFS_LINK_STATES \
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EM(UIC_LINK_OFF_STATE) \
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EM(UIC_LINK_ACTIVE_STATE) \
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EMe(UIC_LINK_HIBERN8_STATE)
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#define UFS_PWR_MODES \
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EM(UFS_ACTIVE_PWR_MODE) \
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EM(UFS_SLEEP_PWR_MODE) \
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EMe(UFS_POWERDOWN_PWR_MODE)
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#define UFSCHD_CLK_GATING_STATES \
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EM(CLKS_OFF) \
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EM(CLKS_ON) \
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EM(REQ_CLKS_OFF) \
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EMe(REQ_CLKS_ON)
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/* Enums require being exported to userspace, for user tool parsing */
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#undef EM
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#undef EMe
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#define EM(a) TRACE_DEFINE_ENUM(a);
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#define EMe(a) TRACE_DEFINE_ENUM(a);
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UFS_LINK_STATES;
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UFS_PWR_MODES;
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UFSCHD_CLK_GATING_STATES;
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/*
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* Now redefine the EM() and EMe() macros to map the enums to the strings
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* that will be printed in the output.
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*/
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#undef EM
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#undef EMe
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#define EM(a) { a, #a },
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#define EMe(a) { a, #a }
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TRACE_EVENT(ufshcd_clk_gating,
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TP_PROTO(const char *dev_name, int state),
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TP_ARGS(dev_name, state),
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TP_STRUCT__entry(
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__string(dev_name, dev_name)
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__field(int, state)
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),
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TP_fast_assign(
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__assign_str(dev_name, dev_name);
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__entry->state = state;
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),
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TP_printk("%s: gating state changed to %s",
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__get_str(dev_name),
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__print_symbolic(__entry->state, UFSCHD_CLK_GATING_STATES))
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);
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TRACE_EVENT(ufshcd_clk_scaling,
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TP_PROTO(const char *dev_name, const char *state, const char *clk,
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u32 prev_state, u32 curr_state),
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TP_ARGS(dev_name, state, clk, prev_state, curr_state),
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TP_STRUCT__entry(
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__string(dev_name, dev_name)
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__string(state, state)
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__string(clk, clk)
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__field(u32, prev_state)
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__field(u32, curr_state)
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),
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TP_fast_assign(
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__assign_str(dev_name, dev_name);
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__assign_str(state, state);
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__assign_str(clk, clk);
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__entry->prev_state = prev_state;
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__entry->curr_state = curr_state;
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),
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TP_printk("%s: %s %s from %u to %u Hz",
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__get_str(dev_name), __get_str(state), __get_str(clk),
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__entry->prev_state, __entry->curr_state)
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);
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TRACE_EVENT(ufshcd_auto_bkops_state,
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TP_PROTO(const char *dev_name, const char *state),
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TP_ARGS(dev_name, state),
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TP_STRUCT__entry(
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__string(dev_name, dev_name)
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__string(state, state)
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),
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TP_fast_assign(
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__assign_str(dev_name, dev_name);
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__assign_str(state, state);
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),
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TP_printk("%s: auto bkops - %s",
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__get_str(dev_name), __get_str(state))
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);
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DECLARE_EVENT_CLASS(ufshcd_profiling_template,
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TP_PROTO(const char *dev_name, const char *profile_info, s64 time_us,
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int err),
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TP_ARGS(dev_name, profile_info, time_us, err),
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TP_STRUCT__entry(
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__string(dev_name, dev_name)
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__string(profile_info, profile_info)
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__field(s64, time_us)
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__field(int, err)
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),
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TP_fast_assign(
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__assign_str(dev_name, dev_name);
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__assign_str(profile_info, profile_info);
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__entry->time_us = time_us;
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__entry->err = err;
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),
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TP_printk("%s: %s: took %lld usecs, err %d",
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__get_str(dev_name), __get_str(profile_info),
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__entry->time_us, __entry->err)
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);
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DEFINE_EVENT(ufshcd_profiling_template, ufshcd_profile_hibern8,
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TP_PROTO(const char *dev_name, const char *profile_info, s64 time_us,
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int err),
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TP_ARGS(dev_name, profile_info, time_us, err));
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DEFINE_EVENT(ufshcd_profiling_template, ufshcd_profile_clk_gating,
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TP_PROTO(const char *dev_name, const char *profile_info, s64 time_us,
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int err),
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TP_ARGS(dev_name, profile_info, time_us, err));
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DEFINE_EVENT(ufshcd_profiling_template, ufshcd_profile_clk_scaling,
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TP_PROTO(const char *dev_name, const char *profile_info, s64 time_us,
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int err),
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TP_ARGS(dev_name, profile_info, time_us, err));
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DECLARE_EVENT_CLASS(ufshcd_template,
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TP_PROTO(const char *dev_name, int err, s64 usecs,
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int dev_state, int link_state),
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TP_ARGS(dev_name, err, usecs, dev_state, link_state),
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TP_STRUCT__entry(
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__field(s64, usecs)
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__field(int, err)
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__string(dev_name, dev_name)
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__field(int, dev_state)
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__field(int, link_state)
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),
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TP_fast_assign(
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__entry->usecs = usecs;
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__entry->err = err;
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__assign_str(dev_name, dev_name);
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__entry->dev_state = dev_state;
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__entry->link_state = link_state;
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),
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TP_printk(
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"%s: took %lld usecs, dev_state: %s, link_state: %s, err %d",
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__get_str(dev_name),
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__entry->usecs,
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__print_symbolic(__entry->dev_state, UFS_PWR_MODES),
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__print_symbolic(__entry->link_state, UFS_LINK_STATES),
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__entry->err
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)
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);
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DEFINE_EVENT(ufshcd_template, ufshcd_system_suspend,
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TP_PROTO(const char *dev_name, int err, s64 usecs,
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int dev_state, int link_state),
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TP_ARGS(dev_name, err, usecs, dev_state, link_state));
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DEFINE_EVENT(ufshcd_template, ufshcd_system_resume,
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TP_PROTO(const char *dev_name, int err, s64 usecs,
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int dev_state, int link_state),
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TP_ARGS(dev_name, err, usecs, dev_state, link_state));
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DEFINE_EVENT(ufshcd_template, ufshcd_runtime_suspend,
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TP_PROTO(const char *dev_name, int err, s64 usecs,
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int dev_state, int link_state),
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TP_ARGS(dev_name, err, usecs, dev_state, link_state));
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DEFINE_EVENT(ufshcd_template, ufshcd_runtime_resume,
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TP_PROTO(const char *dev_name, int err, s64 usecs,
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int dev_state, int link_state),
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TP_ARGS(dev_name, err, usecs, dev_state, link_state));
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DEFINE_EVENT(ufshcd_template, ufshcd_init,
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TP_PROTO(const char *dev_name, int err, s64 usecs,
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int dev_state, int link_state),
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TP_ARGS(dev_name, err, usecs, dev_state, link_state));
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TRACE_EVENT(ufshcd_command,
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TP_PROTO(const char *dev_name, const char *str, unsigned int tag,
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u32 doorbell, int transfer_len, u32 intr, u64 lba,
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u8 opcode),
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TP_ARGS(dev_name, str, tag, doorbell, transfer_len, intr, lba, opcode),
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TP_STRUCT__entry(
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__string(dev_name, dev_name)
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__string(str, str)
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__field(unsigned int, tag)
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__field(u32, doorbell)
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__field(int, transfer_len)
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__field(u32, intr)
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__field(u64, lba)
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__field(u8, opcode)
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),
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TP_fast_assign(
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__assign_str(dev_name, dev_name);
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__assign_str(str, str);
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__entry->tag = tag;
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__entry->doorbell = doorbell;
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__entry->transfer_len = transfer_len;
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__entry->intr = intr;
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__entry->lba = lba;
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__entry->opcode = opcode;
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),
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TP_printk(
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"%s: %s: tag: %u, DB: 0x%x, size: %d, IS: %u, LBA: %llu, opcode: 0x%x",
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__get_str(str), __get_str(dev_name), __entry->tag,
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__entry->doorbell, __entry->transfer_len,
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__entry->intr, __entry->lba, (u32)__entry->opcode
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)
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);
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TRACE_EVENT(ufshcd_uic_command,
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TP_PROTO(const char *dev_name, const char *str, u32 cmd,
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u32 arg1, u32 arg2, u32 arg3),
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TP_ARGS(dev_name, str, cmd, arg1, arg2, arg3),
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TP_STRUCT__entry(
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__string(dev_name, dev_name)
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__string(str, str)
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__field(u32, cmd)
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__field(u32, arg1)
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__field(u32, arg2)
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__field(u32, arg3)
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),
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TP_fast_assign(
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__assign_str(dev_name, dev_name);
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__assign_str(str, str);
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__entry->cmd = cmd;
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__entry->arg1 = arg1;
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__entry->arg2 = arg2;
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__entry->arg3 = arg3;
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),
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TP_printk(
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"%s: %s: cmd: 0x%x, arg1: 0x%x, arg2: 0x%x, arg3: 0x%x",
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__get_str(str), __get_str(dev_name), __entry->cmd,
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__entry->arg1, __entry->arg2, __entry->arg3
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)
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);
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TRACE_EVENT(ufshcd_upiu,
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TP_PROTO(const char *dev_name, const char *str, void *hdr, void *tsf),
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TP_ARGS(dev_name, str, hdr, tsf),
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TP_STRUCT__entry(
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__string(dev_name, dev_name)
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__string(str, str)
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__array(unsigned char, hdr, 12)
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__array(unsigned char, tsf, 16)
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),
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TP_fast_assign(
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__assign_str(dev_name, dev_name);
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__assign_str(str, str);
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memcpy(__entry->hdr, hdr, sizeof(__entry->hdr));
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memcpy(__entry->tsf, tsf, sizeof(__entry->tsf));
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),
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TP_printk(
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"%s: %s: HDR:%s, CDB:%s",
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__get_str(str), __get_str(dev_name),
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__print_hex(__entry->hdr, sizeof(__entry->hdr)),
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__print_hex(__entry->tsf, sizeof(__entry->tsf))
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)
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);
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#endif /* if !defined(_TRACE_UFS_H) || defined(TRACE_HEADER_MULTI_READ) */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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