On Tue, Feb 06, 2024 at 10:02:05AM +0530, Krishna chaitanya chundru wrote: > This change adds ftrace support for following functions which > helps in debugging the issues when there is Channel state & MHI > state change and also when we receive data and control events: > 1. mhi_intvec_mhi_states > 2. mhi_process_data_event_ring > 3. mhi_process_ctrl_ev_ring > 4. mhi_gen_tre > 5. mhi_update_channel_state > 6. mhi_tryset_pm_state > 7. mhi_pm_st_worker > > Change the implementation of the arrays which has enum to strings mapping > to make it consistent in both trace header file and other files. > > Where ever the trace events are added, debug messages are removed. > > Signed-off-by: Krishna chaitanya chundru <quic_kric...@quicinc.com>
Applied to mhi-next! - Mani > Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasi...@linaro.org> > Reviewed-by: "Steven Rostedt (Google)" <rost...@goodmis.org> > --- > Changes in v11: > - Rebased with mhi next. > - Link to v10: > https://lore.kernel.org/r/20240131-ftrace_support-v10-1-4349306b8...@quicinc.com > > Changes in v10: > - Modified command_start and command_end traces to take string as input to > mention correct > - string as suggested by mani > - As sugggested by mani modified the print format from lower format to upper > case format. > - Link to v9: > https://lore.kernel.org/r/20240105-ftrace_support-v9-1-a2dca64cc...@quicinc.com > > Changes in v9: > - Change the implementations of some array so that the strings to enum mapping > - is same in both trace header and other files as suggested by steve. > - Link to v8: > https://lore.kernel.org/r/20231207-ftrace_support-v8-1-7f62d4558...@quicinc.com > > Changes in v8: > - Pass the structure and derefernce the variables in TP_fast_assign as > suggested by steve > - Link to v7: > https://lore.kernel.org/r/20231206-ftrace_support-v7-1-aca49a042...@quicinc.com > > Changes in v7: > - change log format as pointed by mani. > - Link to v6: > https://lore.kernel.org/r/20231204-ftrace_support-v6-1-9b206546d...@quicinc.com > > Changes in v6: > - use 'rp' directly as suggested by jeffrey. > - Link to v5: > https://lore.kernel.org/r/20231127-ftrace_support-v5-1-eb67daead...@quicinc.com > > Changes in v5: > - Use DECLARE_EVENT_CLASS for multiple events as suggested by steve. > - Instead of converting to u64 to print address, use %px to print the address > to avoid > - warnings in some platforms. > - Link to v4: > https://lore.kernel.org/r/20231111-ftrace_support-v4-1-c83602399...@quicinc.com > > Changes in v4: > - Fix compilation issues in previous patch which happended due to rebasing. > - In the defconfig FTRACE config is not enabled due to that the compilation > issue is not > - seen in my workspace. > - Link to v3: > https://lore.kernel.org/r/20231111-ftrace_support-v3-1-f358d2911...@quicinc.com > > Changes in v3: > - move trace header file from include/trace/events to drivers/bus/mhi/host/ > so that > - we can include driver header files. > - Use macros directly in the trace events as suggested Jeffrey Hugo. > - Reorder the structure in the events as suggested by steve to avoid holes in > the buffer. > - removed the mhi_to_physical function as this can give security issues. > - removed macros to define strings as we can get those from driver headers. > - Link to v2: > https://lore.kernel.org/r/20231013-ftrace_support-v2-1-6e893ce01...@quicinc.com > > Changes in v2: > - Passing the raw state into the trace event and using __print_symbolic() as > suggested by bjorn. > - Change mhi_pm_st_worker to mhi_pm_st_transition as suggested by bjorn. > - Fixed the kernel test rebot issues. > - Link to v1: > https://lore.kernel.org/r/20231005-ftrace_support-v1-1-23a2f394f...@quicinc.com > --- > drivers/bus/mhi/common.h | 38 +++--- > drivers/bus/mhi/host/init.c | 64 +++++---- > drivers/bus/mhi/host/internal.h | 41 ++++++ > drivers/bus/mhi/host/main.c | 19 ++- > drivers/bus/mhi/host/pm.c | 7 +- > drivers/bus/mhi/host/trace.h | 280 > ++++++++++++++++++++++++++++++++++++++++ > 6 files changed, 384 insertions(+), 65 deletions(-) > > diff --git a/drivers/bus/mhi/common.h b/drivers/bus/mhi/common.h > index f794b9c8049e..dda340aaed95 100644 > --- a/drivers/bus/mhi/common.h > +++ b/drivers/bus/mhi/common.h > @@ -297,30 +297,30 @@ struct mhi_ring_element { > __le32 dword[2]; > }; > > +#define MHI_STATE_LIST \ > + mhi_state(RESET, "RESET") \ > + mhi_state(READY, "READY") \ > + mhi_state(M0, "M0") \ > + mhi_state(M1, "M1") \ > + mhi_state(M2, "M2") \ > + mhi_state(M3, "M3") \ > + mhi_state(M3_FAST, "M3_FAST") \ > + mhi_state(BHI, "BHI") \ > + mhi_state_end(SYS_ERR, "SYS ERROR") > + > +#undef mhi_state > +#undef mhi_state_end > + > +#define mhi_state(a, b) case MHI_STATE_##a: return b; > +#define mhi_state_end(a, b) case MHI_STATE_##a: return b; > + > static inline const char *mhi_state_str(enum mhi_state state) > { > switch (state) { > - case MHI_STATE_RESET: > - return "RESET"; > - case MHI_STATE_READY: > - return "READY"; > - case MHI_STATE_M0: > - return "M0"; > - case MHI_STATE_M1: > - return "M1"; > - case MHI_STATE_M2: > - return "M2"; > - case MHI_STATE_M3: > - return "M3"; > - case MHI_STATE_M3_FAST: > - return "M3 FAST"; > - case MHI_STATE_BHI: > - return "BHI"; > - case MHI_STATE_SYS_ERR: > - return "SYS ERROR"; > + MHI_STATE_LIST > default: > return "Unknown state"; > } > -}; > +} > > #endif /* _MHI_COMMON_H */ > diff --git a/drivers/bus/mhi/host/init.c b/drivers/bus/mhi/host/init.c > index 6d3b045ab259..944da46e6f11 100644 > --- a/drivers/bus/mhi/host/init.c > +++ b/drivers/bus/mhi/host/init.c > @@ -20,51 +20,49 @@ > #include <linux/wait.h> > #include "internal.h" > > +#define CREATE_TRACE_POINTS > +#include "trace.h" > + > static DEFINE_IDA(mhi_controller_ida); > > +#undef mhi_ee > +#undef mhi_ee_end > + > +#define mhi_ee(a, b) [MHI_EE_##a] = b, > +#define mhi_ee_end(a, b) [MHI_EE_##a] = b, > + > const char * const mhi_ee_str[MHI_EE_MAX] = { > - [MHI_EE_PBL] = "PRIMARY BOOTLOADER", > - [MHI_EE_SBL] = "SECONDARY BOOTLOADER", > - [MHI_EE_AMSS] = "MISSION MODE", > - [MHI_EE_RDDM] = "RAMDUMP DOWNLOAD MODE", > - [MHI_EE_WFW] = "WLAN FIRMWARE", > - [MHI_EE_PTHRU] = "PASS THROUGH", > - [MHI_EE_EDL] = "EMERGENCY DOWNLOAD", > - [MHI_EE_FP] = "FLASH PROGRAMMER", > - [MHI_EE_DISABLE_TRANSITION] = "DISABLE", > - [MHI_EE_NOT_SUPPORTED] = "NOT SUPPORTED", > + MHI_EE_LIST > }; > > +#undef dev_st_trans > +#undef dev_st_trans_end > + > +#define dev_st_trans(a, b) [DEV_ST_TRANSITION_##a] = b, > +#define dev_st_trans_end(a, b) [DEV_ST_TRANSITION_##a] = b, > + > const char * const dev_state_tran_str[DEV_ST_TRANSITION_MAX] = { > - [DEV_ST_TRANSITION_PBL] = "PBL", > - [DEV_ST_TRANSITION_READY] = "READY", > - [DEV_ST_TRANSITION_SBL] = "SBL", > - [DEV_ST_TRANSITION_MISSION_MODE] = "MISSION MODE", > - [DEV_ST_TRANSITION_FP] = "FLASH PROGRAMMER", > - [DEV_ST_TRANSITION_SYS_ERR] = "SYS ERROR", > - [DEV_ST_TRANSITION_DISABLE] = "DISABLE", > + DEV_ST_TRANSITION_LIST > }; > > +#undef ch_state_type > +#undef ch_state_type_end > + > +#define ch_state_type(a, b) [MHI_CH_STATE_TYPE_##a] = b, > +#define ch_state_type_end(a, b) [MHI_CH_STATE_TYPE_##a] = b, > + > const char * const mhi_ch_state_type_str[MHI_CH_STATE_TYPE_MAX] = { > - [MHI_CH_STATE_TYPE_RESET] = "RESET", > - [MHI_CH_STATE_TYPE_STOP] = "STOP", > - [MHI_CH_STATE_TYPE_START] = "START", > + MHI_CH_STATE_TYPE_LIST > }; > > +#undef mhi_pm_state > +#undef mhi_pm_state_end > + > +#define mhi_pm_state(a, b) [MHI_PM_STATE_##a] = b, > +#define mhi_pm_state_end(a, b) [MHI_PM_STATE_##a] = b, > + > static const char * const mhi_pm_state_str[] = { > - [MHI_PM_STATE_DISABLE] = "DISABLE", > - [MHI_PM_STATE_POR] = "POWER ON RESET", > - [MHI_PM_STATE_M0] = "M0", > - [MHI_PM_STATE_M2] = "M2", > - [MHI_PM_STATE_M3_ENTER] = "M?->M3", > - [MHI_PM_STATE_M3] = "M3", > - [MHI_PM_STATE_M3_EXIT] = "M3->M0", > - [MHI_PM_STATE_FW_DL_ERR] = "Firmware Download Error", > - [MHI_PM_STATE_SYS_ERR_DETECT] = "SYS ERROR Detect", > - [MHI_PM_STATE_SYS_ERR_PROCESS] = "SYS ERROR Process", > - [MHI_PM_STATE_SYS_ERR_FAIL] = "SYS ERROR Failure", > - [MHI_PM_STATE_SHUTDOWN_PROCESS] = "SHUTDOWN Process", > - [MHI_PM_STATE_LD_ERR_FATAL_DETECT] = "Linkdown or Error Fatal Detect", > + MHI_PM_STATE_LIST > }; > > const char *to_mhi_pm_state_str(u32 state) > diff --git a/drivers/bus/mhi/host/internal.h b/drivers/bus/mhi/host/internal.h > index 4b6deea17bcd..091244cf17c6 100644 > --- a/drivers/bus/mhi/host/internal.h > +++ b/drivers/bus/mhi/host/internal.h > @@ -42,6 +42,11 @@ enum mhi_ch_state_type { > MHI_CH_STATE_TYPE_MAX, > }; > > +#define MHI_CH_STATE_TYPE_LIST \ > + ch_state_type(RESET, "RESET") \ > + ch_state_type(STOP, "STOP") \ > + ch_state_type_end(START, "START") > + > extern const char * const mhi_ch_state_type_str[MHI_CH_STATE_TYPE_MAX]; > #define TO_CH_STATE_TYPE_STR(state) (((state) >= MHI_CH_STATE_TYPE_MAX) ? \ > "INVALID_STATE" : \ > @@ -50,6 +55,18 @@ extern const char * const > mhi_ch_state_type_str[MHI_CH_STATE_TYPE_MAX]; > #define MHI_INVALID_BRSTMODE(mode) (mode != MHI_DB_BRST_DISABLE && \ > mode != MHI_DB_BRST_ENABLE) > > +#define MHI_EE_LIST \ > + mhi_ee(PBL, "PRIMARY BOOTLOADER") \ > + mhi_ee(SBL, "SECONDARY BOOTLOADER") \ > + mhi_ee(AMSS, "MISSION MODE") \ > + mhi_ee(RDDM, "RAMDUMP DOWNLOAD MODE")\ > + mhi_ee(WFW, "WLAN FIRMWARE") \ > + mhi_ee(PTHRU, "PASS THROUGH") \ > + mhi_ee(EDL, "EMERGENCY DOWNLOAD") \ > + mhi_ee(FP, "FLASH PROGRAMMER") \ > + mhi_ee(DISABLE_TRANSITION, "DISABLE") \ > + mhi_ee_end(NOT_SUPPORTED, "NOT SUPPORTED") > + > extern const char * const mhi_ee_str[MHI_EE_MAX]; > #define TO_MHI_EXEC_STR(ee) (((ee) >= MHI_EE_MAX) ? \ > "INVALID_EE" : mhi_ee_str[ee]) > @@ -72,6 +89,15 @@ enum dev_st_transition { > DEV_ST_TRANSITION_MAX, > }; > > +#define DEV_ST_TRANSITION_LIST \ > + dev_st_trans(PBL, "PBL") \ > + dev_st_trans(READY, "READY") \ > + dev_st_trans(SBL, "SBL") \ > + dev_st_trans(MISSION_MODE, "MISSION MODE") \ > + dev_st_trans(FP, "FLASH PROGRAMMER") \ > + dev_st_trans(SYS_ERR, "SYS ERROR") \ > + dev_st_trans_end(DISABLE, "DISABLE") > + > extern const char * const dev_state_tran_str[DEV_ST_TRANSITION_MAX]; > #define TO_DEV_STATE_TRANS_STR(state) (((state) >= DEV_ST_TRANSITION_MAX) ? \ > "INVALID_STATE" : dev_state_tran_str[state]) > @@ -94,6 +120,21 @@ enum mhi_pm_state { > MHI_PM_STATE_MAX > }; > > +#define MHI_PM_STATE_LIST > \ > + mhi_pm_state(DISABLE, "DISABLE") > \ > + mhi_pm_state(POR, "POWER ON RESET") > \ > + mhi_pm_state(M0, "M0") > \ > + mhi_pm_state(M2, "M2") > \ > + mhi_pm_state(M3_ENTER, "M?->M3") > \ > + mhi_pm_state(M3, "M3") > \ > + mhi_pm_state(M3_EXIT, "M3->M0") > \ > + mhi_pm_state(FW_DL_ERR, "Firmware Download Error") > \ > + mhi_pm_state(SYS_ERR_DETECT, "SYS ERROR Detect") > \ > + mhi_pm_state(SYS_ERR_PROCESS, "SYS ERROR Process") > \ > + mhi_pm_state(SYS_ERR_FAIL, "SYS ERROR Failure") > \ > + mhi_pm_state(SHUTDOWN_PROCESS, "SHUTDOWN Process") > \ > + mhi_pm_state_end(LD_ERR_FATAL_DETECT, "Linkdown or Error Fatal > Detect") > + > #define MHI_PM_DISABLE BIT(0) > #define MHI_PM_POR BIT(1) > #define MHI_PM_M0 BIT(2) > diff --git a/drivers/bus/mhi/host/main.c b/drivers/bus/mhi/host/main.c > index abb561db9ae1..2d38f6005da6 100644 > --- a/drivers/bus/mhi/host/main.c > +++ b/drivers/bus/mhi/host/main.c > @@ -15,6 +15,7 @@ > #include <linux/skbuff.h> > #include <linux/slab.h> > #include "internal.h" > +#include "trace.h" > > int __must_check mhi_read_reg(struct mhi_controller *mhi_cntrl, > void __iomem *base, u32 offset, u32 *out) > @@ -493,11 +494,8 @@ irqreturn_t mhi_intvec_threaded_handler(int irq_number, > void *priv) > > state = mhi_get_mhi_state(mhi_cntrl); > ee = mhi_get_exec_env(mhi_cntrl); > - dev_dbg(dev, "local ee: %s state: %s device ee: %s state: %s\n", > - TO_MHI_EXEC_STR(mhi_cntrl->ee), > - mhi_state_str(mhi_cntrl->dev_state), > - TO_MHI_EXEC_STR(ee), mhi_state_str(state)); > > + trace_mhi_intvec_states(mhi_cntrl, ee, state); > if (state == MHI_STATE_SYS_ERR) { > dev_dbg(dev, "System error detected\n"); > pm_state = mhi_tryset_pm_state(mhi_cntrl, > @@ -838,6 +836,8 @@ int mhi_process_ctrl_ev_ring(struct mhi_controller > *mhi_cntrl, > while (dev_rp != local_rp) { > enum mhi_pkt_type type = MHI_TRE_GET_EV_TYPE(local_rp); > > + trace_mhi_ctrl_event(mhi_cntrl, local_rp); > + > switch (type) { > case MHI_PKT_TYPE_BW_REQ_EVENT: > { > @@ -1003,6 +1003,8 @@ int mhi_process_data_event_ring(struct mhi_controller > *mhi_cntrl, > while (dev_rp != local_rp && event_quota > 0) { > enum mhi_pkt_type type = MHI_TRE_GET_EV_TYPE(local_rp); > > + trace_mhi_data_event(mhi_cntrl, local_rp); > + > chan = MHI_TRE_GET_EV_CHID(local_rp); > > WARN_ON(chan >= mhi_cntrl->max_chan); > @@ -1243,6 +1245,7 @@ int mhi_gen_tre(struct mhi_controller *mhi_cntrl, > struct mhi_chan *mhi_chan, > mhi_tre->dword[0] = MHI_TRE_DATA_DWORD0(info->len); > mhi_tre->dword[1] = MHI_TRE_DATA_DWORD1(bei, eot, eob, chain); > > + trace_mhi_gen_tre(mhi_cntrl, mhi_chan, mhi_tre); > /* increment WP */ > mhi_add_ring_element(mhi_cntrl, tre_ring); > mhi_add_ring_element(mhi_cntrl, buf_ring); > @@ -1337,9 +1340,7 @@ static int mhi_update_channel_state(struct > mhi_controller *mhi_cntrl, > enum mhi_cmd_type cmd = MHI_CMD_NOP; > int ret; > > - dev_dbg(dev, "%d: Updating channel state to: %s\n", mhi_chan->chan, > - TO_CH_STATE_TYPE_STR(to_state)); > - > + trace_mhi_channel_command_start(mhi_cntrl, mhi_chan, to_state, > "Updating"); > switch (to_state) { > case MHI_CH_STATE_TYPE_RESET: > write_lock_irq(&mhi_chan->lock); > @@ -1406,9 +1407,7 @@ static int mhi_update_channel_state(struct > mhi_controller *mhi_cntrl, > write_unlock_irq(&mhi_chan->lock); > } > > - dev_dbg(dev, "%d: Channel state change to %s successful\n", > - mhi_chan->chan, TO_CH_STATE_TYPE_STR(to_state)); > - > + trace_mhi_channel_command_end(mhi_cntrl, mhi_chan, to_state, "Updated"); > exit_channel_update: > mhi_cntrl->runtime_put(mhi_cntrl); > mhi_device_put(mhi_cntrl->mhi_dev); > diff --git a/drivers/bus/mhi/host/pm.c b/drivers/bus/mhi/host/pm.c > index d0d033ce9984..8b40d3f01acc 100644 > --- a/drivers/bus/mhi/host/pm.c > +++ b/drivers/bus/mhi/host/pm.c > @@ -15,6 +15,7 @@ > #include <linux/slab.h> > #include <linux/wait.h> > #include "internal.h" > +#include "trace.h" > > /* > * Not all MHI state transitions are synchronous. Transitions like Linkdown, > @@ -131,6 +132,7 @@ enum mhi_pm_state __must_check mhi_tryset_pm_state(struct > mhi_controller *mhi_cn > if (unlikely(!(dev_state_transitions[index].to_states & state))) > return cur_state; > > + trace_mhi_tryset_pm_state(mhi_cntrl, state); > mhi_cntrl->pm_state = state; > return mhi_cntrl->pm_state; > } > @@ -772,7 +774,6 @@ void mhi_pm_st_worker(struct work_struct *work) > struct mhi_controller *mhi_cntrl = container_of(work, > struct mhi_controller, > st_worker); > - struct device *dev = &mhi_cntrl->mhi_dev->dev; > > spin_lock_irq(&mhi_cntrl->transition_lock); > list_splice_tail_init(&mhi_cntrl->transition_list, &head); > @@ -780,8 +781,8 @@ void mhi_pm_st_worker(struct work_struct *work) > > list_for_each_entry_safe(itr, tmp, &head, node) { > list_del(&itr->node); > - dev_dbg(dev, "Handling state transition: %s\n", > - TO_DEV_STATE_TRANS_STR(itr->state)); > + > + trace_mhi_pm_st_transition(mhi_cntrl, itr->state); > > switch (itr->state) { > case DEV_ST_TRANSITION_PBL: > diff --git a/drivers/bus/mhi/host/trace.h b/drivers/bus/mhi/host/trace.h > new file mode 100644 > index 000000000000..d12a98d44272 > --- /dev/null > +++ b/drivers/bus/mhi/host/trace.h > @@ -0,0 +1,280 @@ > +/* SPDX-License-Identifier: GPL-2.0-only */ > +/* > + * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved. > + */ > + > +#undef TRACE_SYSTEM > +#define TRACE_SYSTEM mhi_host > + > +#if !defined(_TRACE_EVENT_MHI_HOST_H) || defined(TRACE_HEADER_MULTI_READ) > +#define _TRACE_EVENT_MHI_HOST_H > + > +#include <linux/tracepoint.h> > +#include <linux/trace_seq.h> > +#include "../common.h" > +#include "internal.h" > + > +#undef mhi_state > +#undef mhi_state_end > + > +#define mhi_state(a, b) TRACE_DEFINE_ENUM(MHI_STATE_##a); > +#define mhi_state_end(a, b) TRACE_DEFINE_ENUM(MHI_STATE_##a); > + > +MHI_STATE_LIST > + > +#undef mhi_state > +#undef mhi_state_end > + > +#define mhi_state(a, b) { MHI_STATE_##a, b }, > +#define mhi_state_end(a, b) { MHI_STATE_##a, b } > + > +#undef mhi_pm_state > +#undef mhi_pm_state_end > + > +#define mhi_pm_state(a, b) TRACE_DEFINE_ENUM(MHI_PM_STATE_##a); > +#define mhi_pm_state_end(a, b) > TRACE_DEFINE_ENUM(MHI_PM_STATE_##a); > + > +MHI_PM_STATE_LIST > + > +#undef mhi_pm_state > +#undef mhi_pm_state_end > + > +#define mhi_pm_state(a, b) { MHI_PM_STATE_##a, b }, > +#define mhi_pm_state_end(a, b) { MHI_PM_STATE_##a, b } > + > +#undef mhi_ee > +#undef mhi_ee_end > + > +#define mhi_ee(a, b) TRACE_DEFINE_ENUM(MHI_EE_##a); > +#define mhi_ee_end(a, b) TRACE_DEFINE_ENUM(MHI_EE_##a); > + > +MHI_EE_LIST > + > +#undef mhi_ee > +#undef mhi_ee_end > + > +#define mhi_ee(a, b) { MHI_EE_##a, b }, > +#define mhi_ee_end(a, b) { MHI_EE_##a, b } > + > +#undef ch_state_type > +#undef ch_state_type_end > + > +#define ch_state_type(a, b) > TRACE_DEFINE_ENUM(MHI_CH_STATE_TYPE_##a); > +#define ch_state_type_end(a, b) > TRACE_DEFINE_ENUM(MHI_CH_STATE_TYPE_##a); > + > +MHI_CH_STATE_TYPE_LIST > + > +#undef ch_state_type > +#undef ch_state_type_end > + > +#define ch_state_type(a, b) { MHI_CH_STATE_TYPE_##a, b }, > +#define ch_state_type_end(a, b) { MHI_CH_STATE_TYPE_##a, b } > + > +#undef dev_st_trans > +#undef dev_st_trans_end > + > +#define dev_st_trans(a, b) > TRACE_DEFINE_ENUM(DEV_ST_TRANSITION_##a); > +#define dev_st_trans_end(a, b) > TRACE_DEFINE_ENUM(DEV_ST_TRANSITION_##a); > + > +DEV_ST_TRANSITION_LIST > + > +#undef dev_st_trans > +#undef dev_st_trans_end > + > +#define dev_st_trans(a, b) { DEV_ST_TRANSITION_##a, b }, > +#define dev_st_trans_end(a, b) { DEV_ST_TRANSITION_##a, b } > + > +TRACE_EVENT(mhi_gen_tre, > + > + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan, > + struct mhi_ring_element *mhi_tre), > + > + TP_ARGS(mhi_cntrl, mhi_chan, mhi_tre), > + > + TP_STRUCT__entry( > + __string(name, mhi_cntrl->mhi_dev->name) > + __field(int, ch_num) > + __field(void *, wp) > + __field(__le64, tre_ptr) > + __field(__le32, dword0) > + __field(__le32, dword1) > + ), > + > + TP_fast_assign( > + __assign_str(name, mhi_cntrl->mhi_dev->name); > + __entry->ch_num = mhi_chan->chan; > + __entry->wp = mhi_tre; > + __entry->tre_ptr = mhi_tre->ptr; > + __entry->dword0 = mhi_tre->dword[0]; > + __entry->dword1 = mhi_tre->dword[1]; > + ), > + > + TP_printk("%s: Chan: %d TRE: 0x%p TRE buf: 0x%llx DWORD0: 0x%08x > DWORD1: 0x%08x\n", > + __get_str(name), __entry->ch_num, __entry->wp, > __entry->tre_ptr, > + __entry->dword0, __entry->dword1) > +); > + > +TRACE_EVENT(mhi_intvec_states, > + > + TP_PROTO(struct mhi_controller *mhi_cntrl, int dev_ee, int dev_state), > + > + TP_ARGS(mhi_cntrl, dev_ee, dev_state), > + > + TP_STRUCT__entry( > + __string(name, mhi_cntrl->mhi_dev->name) > + __field(int, local_ee) > + __field(int, state) > + __field(int, dev_ee) > + __field(int, dev_state) > + ), > + > + TP_fast_assign( > + __assign_str(name, mhi_cntrl->mhi_dev->name); > + __entry->local_ee = mhi_cntrl->ee; > + __entry->state = mhi_cntrl->dev_state; > + __entry->dev_ee = dev_ee; > + __entry->dev_state = dev_state; > + ), > + > + TP_printk("%s: Local EE: %s State: %s Device EE: %s Dev State: %s\n", > + __get_str(name), > + __print_symbolic(__entry->local_ee, MHI_EE_LIST), > + __print_symbolic(__entry->state, MHI_STATE_LIST), > + __print_symbolic(__entry->dev_ee, MHI_EE_LIST), > + __print_symbolic(__entry->dev_state, MHI_STATE_LIST)) > +); > + > +TRACE_EVENT(mhi_tryset_pm_state, > + > + TP_PROTO(struct mhi_controller *mhi_cntrl, int pm_state), > + > + TP_ARGS(mhi_cntrl, pm_state), > + > + TP_STRUCT__entry( > + __string(name, mhi_cntrl->mhi_dev->name) > + __field(int, pm_state) > + ), > + > + TP_fast_assign( > + __assign_str(name, mhi_cntrl->mhi_dev->name); > + if (pm_state) > + pm_state = __fls(pm_state); > + __entry->pm_state = pm_state; > + ), > + > + TP_printk("%s: PM state: %s\n", __get_str(name), > + __print_symbolic(__entry->pm_state, MHI_PM_STATE_LIST)) > +); > + > +DECLARE_EVENT_CLASS(mhi_process_event_ring, > + > + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_ring_element *rp), > + > + TP_ARGS(mhi_cntrl, rp), > + > + TP_STRUCT__entry( > + __string(name, mhi_cntrl->mhi_dev->name) > + __field(__le32, dword0) > + __field(__le32, dword1) > + __field(int, state) > + __field(__le64, ptr) > + __field(void *, rp) > + ), > + > + TP_fast_assign( > + __assign_str(name, mhi_cntrl->mhi_dev->name); > + __entry->rp = rp; > + __entry->ptr = rp->ptr; > + __entry->dword0 = rp->dword[0]; > + __entry->dword1 = rp->dword[1]; > + __entry->state = MHI_TRE_GET_EV_STATE(rp); > + ), > + > + TP_printk("%s: TRE: 0x%p TRE buf: 0x%llx DWORD0: 0x%08x DWORD1: 0x%08x > State: %s\n", > + __get_str(name), __entry->rp, __entry->ptr, __entry->dword0, > + __entry->dword1, __print_symbolic(__entry->state, > MHI_STATE_LIST)) > +); > + > +DEFINE_EVENT(mhi_process_event_ring, mhi_data_event, > + > + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_ring_element *rp), > + > + TP_ARGS(mhi_cntrl, rp) > +); > + > +DEFINE_EVENT(mhi_process_event_ring, mhi_ctrl_event, > + > + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_ring_element *rp), > + > + TP_ARGS(mhi_cntrl, rp) > +); > + > +DECLARE_EVENT_CLASS(mhi_update_channel_state, > + > + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan, > int state, > + const char *reason), > + > + TP_ARGS(mhi_cntrl, mhi_chan, state, reason), > + > + TP_STRUCT__entry( > + __string(name, mhi_cntrl->mhi_dev->name) > + __field(int, ch_num) > + __field(int, state) > + __field(const char *, reason) > + ), > + > + TP_fast_assign( > + __assign_str(name, mhi_cntrl->mhi_dev->name); > + __entry->ch_num = mhi_chan->chan; > + __entry->state = state; > + __entry->reason = reason; > + ), > + > + TP_printk("%s: chan%d: %s state to: %s\n", > + __get_str(name), __entry->ch_num, __entry->reason, > + __print_symbolic(__entry->state, MHI_CH_STATE_TYPE_LIST)) > +); > + > +DEFINE_EVENT(mhi_update_channel_state, mhi_channel_command_start, > + > + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan, > int state, > + const char *reason), > + > + TP_ARGS(mhi_cntrl, mhi_chan, state, reason) > +); > + > +DEFINE_EVENT(mhi_update_channel_state, mhi_channel_command_end, > + > + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan, > int state, > + const char *reason), > + > + TP_ARGS(mhi_cntrl, mhi_chan, state, reason) > +); > + > +TRACE_EVENT(mhi_pm_st_transition, > + > + TP_PROTO(struct mhi_controller *mhi_cntrl, int state), > + > + TP_ARGS(mhi_cntrl, state), > + > + TP_STRUCT__entry( > + __string(name, mhi_cntrl->mhi_dev->name) > + __field(int, state) > + ), > + > + TP_fast_assign( > + __assign_str(name, mhi_cntrl->mhi_dev->name); > + __entry->state = state; > + ), > + > + TP_printk("%s: Handling state transition: %s\n", __get_str(name), > + __print_symbolic(__entry->state, DEV_ST_TRANSITION_LIST)) > +); > + > +#endif > +#undef TRACE_INCLUDE_PATH > +#define TRACE_INCLUDE_PATH ../../drivers/bus/mhi/host > +#undef TRACE_INCLUDE_FILE > +#define TRACE_INCLUDE_FILE trace > + > +#include <trace/define_trace.h> > > --- > base-commit: ae1d892d518af5c092f2b1f8e6921996c6a95cb3 > change-id: 20240206-ftrace_support-8ef0fbecf85e > > Best regards, > -- > Krishna chaitanya chundru <quic_kric...@quicinc.com> > -- மணிவண்ணன் சதாசிவம்
