Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linuxgrafted

Pull I3C updates from Alexandre Belloni:
 "A new driver this cycle, for the AMD AXI I3C controller.

  There are also new features such as IBI wakeup support, SETAASA device
  discovery and ACPI support for the the DAA methods, meaning we can now
  communicate with the SPD devices on DDR5 modules.

  New driver:
   - AMD AXI I3C master controller

  Subsystem:
   - I3C Common Command Code (CCC) handling improvements, especially
     around GET CCCs
   - SETAASA device discovery support
   - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as
     well as I2C devices on I3C bus
   - IBI-based wakeup support

  Drivers:
   - dw: SETAASA support
   - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C
     controller support, PIO queue management support for HCI v1.2
   - renesas: improve suspend to RAM support, add runtime PM support"

* tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits)
  i3c: dw: reduce do_daa time if there's no client
  i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller
  i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2
  i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode
  i3c: dw: rename "pclk" to "apb" to match dt-binding
  i3c: dw: make struct dw_i3c_cmd smaller
  i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding
  i3c: renesas: Don't register devices when ENTDAA times out
  i3c: master: dw-i3c-master: fix OD timing for first broadcast
  i3c: mipi-i3c-hci: Advertise IBI wakeup capability
  i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev()
  i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI
  i3c: master: Reject IBI requests from non-IBI-capable devices
  i3c: master: Add helper to query bus wakeup requirements
  i3c: master: Report wakeup events for IBIs
  i3c: master: Support IBI-based wakeup capability
  i3c: master: Fix potential UAF in i3c_device_match()
  i3c: master: Fix potential UAF in i3c_device_uevent()
  i3c: Make dev->desc locking assumptions explicit
  i3c: master: Fix use-after-free of master->this
  ...

1 files changed, 489 insertions, 0 deletions

diff --git a/include/trace/events/timer.h b/include/trace/events/timer.h
new file mode 100644
index 000000000..ca82fd62d
--- /dev/null
+++ b/include/trace/events/timer.h
@@ -0,0 +1,489 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM timer
+
+#if !defined(_TRACE_TIMER_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_TIMER_H
+
+#include <linux/tracepoint.h>
+#include <linux/hrtimer.h>
+#include <linux/timer.h>
+
+DECLARE_EVENT_CLASS(timer_class,
+
+	TP_PROTO(struct timer_list *timer),
+
+	TP_ARGS(timer),
+
+	TP_STRUCT__entry(
+		__field( void *,	timer	)
+	),
+
+	TP_fast_assign(
+		__entry->timer	= timer;
+	),
+
+	TP_printk("timer=%p", __entry->timer)
+);
+
+/**
+ * timer_init - called when the timer is initialized
+ * @timer:	pointer to struct timer_list
+ */
+DEFINE_EVENT(timer_class, timer_init,
+
+	TP_PROTO(struct timer_list *timer),
+
+	TP_ARGS(timer)
+);
+
+#define decode_timer_flags(flags)			\
+	__print_flags(flags, "|",			\
+		{  TIMER_MIGRATING,	"M" },		\
+		{  TIMER_DEFERRABLE,	"D" },		\
+		{  TIMER_PINNED,	"P" },		\
+		{  TIMER_IRQSAFE,	"I" })
+
+/**
+ * timer_start - called when the timer is started
+ * @timer:		pointer to struct timer_list
+ * @bucket_expiry:	the bucket expiry time
+ */
+TRACE_EVENT(timer_start,
+
+	TP_PROTO(struct timer_list *timer,
+		unsigned long bucket_expiry),
+
+	TP_ARGS(timer, bucket_expiry),
+
+	TP_STRUCT__entry(
+		__field( void *,	timer		)
+		__field( void *,	function	)
+		__field( unsigned long,	expires		)
+		__field( unsigned long,	bucket_expiry	)
+		__field( unsigned long,	now		)
+		__field( unsigned int,	flags		)
+	),
+
+	TP_fast_assign(
+		__entry->timer		= timer;
+		__entry->function	= timer->function;
+		__entry->expires	= timer->expires;
+		__entry->bucket_expiry	= bucket_expiry;
+		__entry->now		= jiffies;
+		__entry->flags		= timer->flags;
+	),
+
+	TP_printk("timer=%p function=%ps expires=%lu [timeout=%ld] bucket_expiry=%lu cpu=%u idx=%u flags=%s",
+		  __entry->timer, __entry->function, __entry->expires,
+		  (long)__entry->expires - __entry->now,
+		  __entry->bucket_expiry, __entry->flags & TIMER_CPUMASK,
+		  __entry->flags >> TIMER_ARRAYSHIFT,
+		  decode_timer_flags(__entry->flags & TIMER_TRACE_FLAGMASK))
+);
+
+/**
+ * timer_expire_entry - called immediately before the timer callback
+ * @timer:	pointer to struct timer_list
+ * @baseclk:	value of timer_base::clk when timer expires
+ *
+ * Allows to determine the timer latency.
+ */
+TRACE_EVENT(timer_expire_entry,
+
+	TP_PROTO(struct timer_list *timer, unsigned long baseclk),
+
+	TP_ARGS(timer, baseclk),
+
+	TP_STRUCT__entry(
+		__field( void *,	timer	)
+		__field( unsigned long,	now	)
+		__field( void *,	function)
+		__field( unsigned long,	baseclk	)
+	),
+
+	TP_fast_assign(
+		__entry->timer		= timer;
+		__entry->now		= jiffies;
+		__entry->function	= timer->function;
+		__entry->baseclk	= baseclk;
+	),
+
+	TP_printk("timer=%p function=%ps now=%lu baseclk=%lu",
+		  __entry->timer, __entry->function, __entry->now,
+		  __entry->baseclk)
+);
+
+/**
+ * timer_expire_exit - called immediately after the timer callback returns
+ * @timer:	pointer to struct timer_list
+ *
+ * When used in combination with the timer_expire_entry tracepoint we can
+ * determine the runtime of the timer callback function.
+ *
+ * NOTE: Do NOT dereference timer in TP_fast_assign. The pointer might
+ * be invalid. We solely track the pointer.
+ */
+DEFINE_EVENT(timer_class, timer_expire_exit,
+
+	TP_PROTO(struct timer_list *timer),
+
+	TP_ARGS(timer)
+);
+
+/**
+ * timer_cancel - called when the timer is canceled
+ * @timer:	pointer to struct timer_list
+ */
+DEFINE_EVENT(timer_class, timer_cancel,
+
+	TP_PROTO(struct timer_list *timer),
+
+	TP_ARGS(timer)
+);
+
+TRACE_EVENT(timer_base_idle,
+
+	TP_PROTO(bool is_idle, unsigned int cpu),
+
+	TP_ARGS(is_idle, cpu),
+
+	TP_STRUCT__entry(
+		__field( bool,		is_idle	)
+		__field( unsigned int,	cpu	)
+	),
+
+	TP_fast_assign(
+		__entry->is_idle	= is_idle;
+		__entry->cpu		= cpu;
+	),
+
+	TP_printk("is_idle=%d cpu=%d",
+		  __entry->is_idle, __entry->cpu)
+);
+
+#define decode_clockid(type)						\
+	__print_symbolic(type,						\
+		{ CLOCK_REALTIME,	"CLOCK_REALTIME"	},	\
+		{ CLOCK_MONOTONIC,	"CLOCK_MONOTONIC"	},	\
+		{ CLOCK_BOOTTIME,	"CLOCK_BOOTTIME"	},	\
+		{ CLOCK_TAI,		"CLOCK_TAI"		})
+
+#define decode_hrtimer_mode(mode)					\
+	__print_symbolic(mode,						\
+		{ HRTIMER_MODE_ABS,		"ABS"		},	\
+		{ HRTIMER_MODE_REL,		"REL"		},	\
+		{ HRTIMER_MODE_ABS_PINNED,	"ABS|PINNED"	},	\
+		{ HRTIMER_MODE_REL_PINNED,	"REL|PINNED"	},	\
+		{ HRTIMER_MODE_ABS_SOFT,	"ABS|SOFT"	},	\
+		{ HRTIMER_MODE_REL_SOFT,	"REL|SOFT"	},	\
+		{ HRTIMER_MODE_ABS_PINNED_SOFT,	"ABS|PINNED|SOFT" },	\
+		{ HRTIMER_MODE_REL_PINNED_SOFT,	"REL|PINNED|SOFT" },	\
+		{ HRTIMER_MODE_ABS_HARD,	"ABS|HARD" },		\
+		{ HRTIMER_MODE_REL_HARD,	"REL|HARD" },		\
+		{ HRTIMER_MODE_ABS_PINNED_HARD, "ABS|PINNED|HARD" },	\
+		{ HRTIMER_MODE_REL_PINNED_HARD,	"REL|PINNED|HARD" })
+
+/**
+ * hrtimer_setup - called when the hrtimer is initialized
+ * @hrtimer:	pointer to struct hrtimer
+ * @clockid:	the hrtimers clock
+ * @mode:	the hrtimers mode
+ */
+TRACE_EVENT(hrtimer_setup,
+
+	TP_PROTO(struct hrtimer *hrtimer, clockid_t clockid,
+		 enum hrtimer_mode mode),
+
+	TP_ARGS(hrtimer, clockid, mode),
+
+	TP_STRUCT__entry(
+		__field( void *,		hrtimer		)
+		__field( clockid_t,		clockid		)
+		__field( enum hrtimer_mode,	mode		)
+	),
+
+	TP_fast_assign(
+		__entry->hrtimer	= hrtimer;
+		__entry->clockid	= clockid;
+		__entry->mode		= mode;
+	),
+
+	TP_printk("hrtimer=%p clockid=%s mode=%s", __entry->hrtimer,
+		  decode_clockid(__entry->clockid),
+		  decode_hrtimer_mode(__entry->mode))
+);
+
+/**
+ * hrtimer_start - called when the hrtimer is started
+ * @hrtimer:	pointer to struct hrtimer
+ * @mode:	the hrtimers mode
+ * @was_armed:	Was armed when hrtimer_start*() was invoked
+ */
+TRACE_EVENT(hrtimer_start,
+
+	TP_PROTO(struct hrtimer *hrtimer, enum hrtimer_mode mode, bool was_armed),
+
+	TP_ARGS(hrtimer, mode, was_armed),
+
+	TP_STRUCT__entry(
+		__field( void *,	hrtimer		)
+		__field( void *,	function	)
+		__field( s64,		expires		)
+		__field( s64,		softexpires	)
+		__field( enum hrtimer_mode,	mode	)
+		__field( bool,		was_armed	)
+	),
+
+	TP_fast_assign(
+		__entry->hrtimer	= hrtimer;
+		__entry->function	= ACCESS_PRIVATE(hrtimer, function);
+		__entry->expires	= hrtimer_get_expires(hrtimer);
+		__entry->softexpires	= hrtimer_get_softexpires(hrtimer);
+		__entry->mode		= mode;
+		__entry->was_armed	= was_armed;
+	),
+
+	TP_printk("hrtimer=%p function=%ps expires=%llu softexpires=%llu "
+		  "mode=%s was_armed=%d", __entry->hrtimer, __entry->function,
+		  (unsigned long long) __entry->expires,
+		  (unsigned long long) __entry->softexpires,
+		  decode_hrtimer_mode(__entry->mode), __entry->was_armed)
+);
+
+/**
+ * hrtimer_expire_entry - called immediately before the hrtimer callback
+ * @hrtimer:	pointer to struct hrtimer
+ * @now:	variable which contains current time of the timers base.
+ *
+ * Allows to determine the timer latency.
+ */
+TRACE_EVENT(hrtimer_expire_entry,
+
+	TP_PROTO(struct hrtimer *hrtimer, ktime_t now),
+
+	TP_ARGS(hrtimer, now),
+
+	TP_STRUCT__entry(
+		__field( void *,	hrtimer	)
+		__field( s64,		now	)
+		__field( void *,	function)
+	),
+
+	TP_fast_assign(
+		__entry->hrtimer	= hrtimer;
+		__entry->now		= now;
+		__entry->function	= ACCESS_PRIVATE(hrtimer, function);
+	),
+
+	TP_printk("hrtimer=%p function=%ps now=%llu",
+		  __entry->hrtimer, __entry->function,
+		  (unsigned long long) __entry->now)
+);
+
+DECLARE_EVENT_CLASS(hrtimer_class,
+
+	TP_PROTO(struct hrtimer *hrtimer),
+
+	TP_ARGS(hrtimer),
+
+	TP_STRUCT__entry(
+		__field( void *,	hrtimer	)
+	),
+
+	TP_fast_assign(
+		__entry->hrtimer	= hrtimer;
+	),
+
+	TP_printk("hrtimer=%p", __entry->hrtimer)
+);
+
+/**
+ * hrtimer_start_expired - Invoked when a expired timer was started
+ * @hrtimer:	pointer to struct hrtimer
+ *
+ * Preceeded by a hrtimer_start tracepoint.
+ */
+DEFINE_EVENT(hrtimer_class, hrtimer_start_expired,
+
+	TP_PROTO(struct hrtimer *hrtimer),
+
+	TP_ARGS(hrtimer)
+);
+
+/**
+ * hrtimer_expire_exit - called immediately after the hrtimer callback returns
+ * @hrtimer:	pointer to struct hrtimer
+ *
+ * When used in combination with the hrtimer_expire_entry tracepoint we can
+ * determine the runtime of the callback function.
+ */
+DEFINE_EVENT(hrtimer_class, hrtimer_expire_exit,
+
+	TP_PROTO(struct hrtimer *hrtimer),
+
+	TP_ARGS(hrtimer)
+);
+
+/**
+ * hrtimer_cancel - called when the hrtimer is canceled
+ * @hrtimer:	pointer to struct hrtimer
+ */
+DEFINE_EVENT(hrtimer_class, hrtimer_cancel,
+
+	TP_PROTO(struct hrtimer *hrtimer),
+
+	TP_ARGS(hrtimer)
+);
+
+/**
+ * hrtimer_rearm - Invoked when the clockevent device is rearmed
+ * @next_event:	The next expiry time (CLOCK_MONOTONIC)
+ */
+TRACE_EVENT(hrtimer_rearm,
+
+	TP_PROTO(ktime_t next_event, bool deferred),
+
+	TP_ARGS(next_event, deferred),
+
+	TP_STRUCT__entry(
+		__field( s64,		next_event	)
+		__field( bool,		deferred	)
+	),
+
+	TP_fast_assign(
+		__entry->next_event	= next_event;
+		__entry->deferred	= deferred;
+	),
+
+	TP_printk("next_event=%llu deferred=%d",
+		  (unsigned long long) __entry->next_event, __entry->deferred)
+);
+
+/**
+ * itimer_state - called when itimer is started or canceled
+ * @which:	name of the interval timer
+ * @value:	the itimers value, itimer is canceled if value->it_value is
+ *		zero, otherwise it is started
+ * @expires:	the itimers expiry time
+ */
+TRACE_EVENT(itimer_state,
+
+	TP_PROTO(int which, const struct itimerspec64 *const value,
+		 unsigned long long expires),
+
+	TP_ARGS(which, value, expires),
+
+	TP_STRUCT__entry(
+		__field(	int,			which		)
+		__field(	unsigned long long,	expires		)
+		__field(	long,			value_sec	)
+		__field(	long,			value_nsec	)
+		__field(	long,			interval_sec	)
+		__field(	long,			interval_nsec	)
+	),
+
+	TP_fast_assign(
+		__entry->which		= which;
+		__entry->expires	= expires;
+		__entry->value_sec	= value->it_value.tv_sec;
+		__entry->value_nsec	= value->it_value.tv_nsec;
+		__entry->interval_sec	= value->it_interval.tv_sec;
+		__entry->interval_nsec	= value->it_interval.tv_nsec;
+	),
+
+	TP_printk("which=%d expires=%llu it_value=%ld.%06ld it_interval=%ld.%06ld",
+		  __entry->which, __entry->expires,
+		  __entry->value_sec, __entry->value_nsec / NSEC_PER_USEC,
+		  __entry->interval_sec, __entry->interval_nsec / NSEC_PER_USEC)
+);
+
+/**
+ * itimer_expire - called when itimer expires
+ * @which:	type of the interval timer
+ * @pid:	pid of the process which owns the timer
+ * @now:	current time, used to calculate the latency of itimer
+ */
+TRACE_EVENT(itimer_expire,
+
+	TP_PROTO(int which, struct pid *pid, unsigned long long now),
+
+	TP_ARGS(which, pid, now),
+
+	TP_STRUCT__entry(
+		__field( int ,			which	)
+		__field( pid_t,			pid	)
+		__field( unsigned long long,	now	)
+	),
+
+	TP_fast_assign(
+		__entry->which	= which;
+		__entry->now	= now;
+		__entry->pid	= pid_nr(pid);
+	),
+
+	TP_printk("which=%d pid=%d now=%llu", __entry->which,
+		  (int) __entry->pid, __entry->now)
+);
+
+#ifdef CONFIG_NO_HZ_COMMON
+
+#define TICK_DEP_NAMES					\
+		tick_dep_mask_name(NONE)		\
+		tick_dep_name(POSIX_TIMER)		\
+		tick_dep_name(PERF_EVENTS)		\
+		tick_dep_name(SCHED)			\
+		tick_dep_name(CLOCK_UNSTABLE)		\
+		tick_dep_name(RCU)			\
+		tick_dep_name_end(RCU_EXP)
+
+#undef tick_dep_name
+#undef tick_dep_mask_name
+#undef tick_dep_name_end
+
+/* The MASK will convert to their bits and they need to be processed too */
+#define tick_dep_name(sdep) TRACE_DEFINE_ENUM(TICK_DEP_BIT_##sdep); \
+	TRACE_DEFINE_ENUM(TICK_DEP_MASK_##sdep);
+#define tick_dep_name_end(sdep)  TRACE_DEFINE_ENUM(TICK_DEP_BIT_##sdep); \
+	TRACE_DEFINE_ENUM(TICK_DEP_MASK_##sdep);
+/* NONE only has a mask defined for it */
+#define tick_dep_mask_name(sdep) TRACE_DEFINE_ENUM(TICK_DEP_MASK_##sdep);
+
+TICK_DEP_NAMES
+
+#undef tick_dep_name
+#undef tick_dep_mask_name
+#undef tick_dep_name_end
+
+#define tick_dep_name(sdep) { TICK_DEP_MASK_##sdep, #sdep },
+#define tick_dep_mask_name(sdep) { TICK_DEP_MASK_##sdep, #sdep },
+#define tick_dep_name_end(sdep) { TICK_DEP_MASK_##sdep, #sdep }
+
+#define show_tick_dep_name(val)				\
+	__print_symbolic(val, TICK_DEP_NAMES)
+
+TRACE_EVENT(tick_stop,
+
+	TP_PROTO(int success, int dependency),
+
+	TP_ARGS(success, dependency),
+
+	TP_STRUCT__entry(
+		__field( int ,		success	)
+		__field( int ,		dependency )
+	),
+
+	TP_fast_assign(
+		__entry->success	= success;
+		__entry->dependency	= dependency;
+	),
+
+	TP_printk("success=%d dependency=%s",  __entry->success, \
+			show_tick_dep_name(__entry->dependency))
+);
+#endif
+
+#endif /*  _TRACE_TIMER_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>