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, 232 insertions, 0 deletions

diff --git a/tools/perf/util/kvm-stat.h b/tools/perf/util/kvm-stat.h
new file mode 100644
index 000000000..8eee8d073
--- /dev/null
+++ b/tools/perf/util/kvm-stat.h
@@ -0,0 +1,232 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __PERF_KVM_STAT_H
+#define __PERF_KVM_STAT_H
+
+#include "tool.h"
+#include "sort.h"
+#include "stat.h"
+#include "symbol.h"
+#include "record.h"
+
+#include <errno.h>
+#include <stdlib.h>
+#include <linux/zalloc.h>
+
+#define KVM_EVENT_NAME_LEN	40
+
+struct evsel;
+struct evlist;
+struct perf_session;
+
+struct event_key {
+	#define INVALID_KEY     (~0ULL)
+	u64 key;
+	int info;
+	struct exit_reasons_table *exit_reasons;
+};
+
+struct kvm_info {
+	char name[KVM_EVENT_NAME_LEN];
+	refcount_t refcnt;
+};
+
+struct kvm_event_stats {
+	u64 time;
+	struct stats stats;
+};
+
+struct perf_kvm_stat;
+
+struct kvm_event {
+	struct list_head hash_entry;
+
+	struct perf_kvm_stat *perf_kvm;
+	struct event_key key;
+
+	struct kvm_event_stats total;
+
+	#define DEFAULT_VCPU_NUM 8
+	int max_vcpu;
+	struct kvm_event_stats *vcpu;
+
+	struct hist_entry he;
+};
+
+struct child_event_ops {
+	void (*get_key)(struct perf_sample *sample,
+			struct event_key *key);
+	const char *name;
+};
+
+struct kvm_events_ops {
+	bool (*is_begin_event)(struct perf_sample *sample,
+			       struct event_key *key);
+	bool (*is_end_event)(struct perf_sample *sample, struct event_key *key);
+	const struct child_event_ops *child_ops;
+	void (*decode_key)(struct perf_kvm_stat *kvm, struct event_key *key,
+			   char *decode);
+	const char *name;
+};
+
+struct exit_reasons_table {
+	u64 exit_code;
+	const char *reason;
+};
+
+struct perf_kvm_stat {
+	struct perf_tool    tool;
+	struct record_opts  opts;
+	struct evlist  *evlist;
+	struct perf_session *session;
+
+	const char *file_name;
+	const char *report_event;
+	const char *sort_key;
+	int trace_vcpu;
+
+	/* Used when process events */
+	struct addr_location al;
+
+	struct exit_reasons_table *exit_reasons;
+	const char *exit_reasons_isa;
+
+	const struct kvm_events_ops *events_ops;
+
+	u64 total_time;
+	u64 total_count;
+	u64 lost_events;
+	u64 duration;
+
+	struct intlist *pid_list;
+
+	int timerfd;
+	unsigned int display_time;
+	bool live;
+	bool force;
+	bool use_stdio;
+};
+
+struct kvm_reg_events_ops {
+	const char *name;
+	const struct kvm_events_ops *ops;
+};
+
+#ifdef HAVE_LIBTRACEEVENT
+
+void exit_event_get_key(struct perf_sample *sample,
+			struct event_key *key);
+bool exit_event_begin(struct perf_sample *sample,
+		      struct event_key *key);
+bool exit_event_end(struct perf_sample *sample,
+		    struct event_key *key);
+void exit_event_decode_key(struct perf_kvm_stat *kvm,
+			   struct event_key *key,
+			   char *decode);
+
+bool kvm_exit_event(struct evsel *evsel);
+bool kvm_entry_event(struct evsel *evsel);
+
+#define define_exit_reasons_table(name, symbols)	\
+	static struct exit_reasons_table name[] = {	\
+		symbols, { -1, NULL }			\
+	}
+
+/*
+ * arch specific callbacks and data structures
+ */
+int setup_kvm_events_tp(struct perf_kvm_stat *kvm, uint16_t e_machine);
+int __setup_kvm_events_tp_powerpc(struct perf_kvm_stat *kvm);
+
+int cpu_isa_init(struct perf_kvm_stat *kvm, uint16_t e_machine, const char *cpuid);
+int __cpu_isa_init_arm64(struct perf_kvm_stat *kvm);
+int __cpu_isa_init_loongarch(struct perf_kvm_stat *kvm);
+int __cpu_isa_init_powerpc(struct perf_kvm_stat *kvm);
+int __cpu_isa_init_riscv(struct perf_kvm_stat *kvm);
+int __cpu_isa_init_s390(struct perf_kvm_stat *kvm, const char *cpuid);
+int __cpu_isa_init_x86(struct perf_kvm_stat *kvm, const char *cpuid);
+
+const char *vcpu_id_str(uint16_t e_machine);
+const char *kvm_exit_reason(uint16_t e_machine);
+const char *kvm_entry_trace(uint16_t e_machine);
+const char *kvm_exit_trace(uint16_t e_machine);
+
+const char * const *kvm_events_tp(uint16_t e_machine);
+const char * const *__kvm_events_tp_arm64(void);
+const char * const *__kvm_events_tp_loongarch(void);
+const char * const *__kvm_events_tp_powerpc(void);
+const char * const *__kvm_events_tp_riscv(void);
+const char * const *__kvm_events_tp_s390(void);
+const char * const *__kvm_events_tp_x86(void);
+
+const struct kvm_reg_events_ops *kvm_reg_events_ops(uint16_t e_machine);
+const struct kvm_reg_events_ops *__kvm_reg_events_ops_arm64(void);
+const struct kvm_reg_events_ops *__kvm_reg_events_ops_loongarch(void);
+const struct kvm_reg_events_ops *__kvm_reg_events_ops_powerpc(void);
+const struct kvm_reg_events_ops *__kvm_reg_events_ops_riscv(void);
+const struct kvm_reg_events_ops *__kvm_reg_events_ops_s390(void);
+const struct kvm_reg_events_ops *__kvm_reg_events_ops_x86(void);
+
+const char * const *kvm_skip_events(uint16_t e_machine);
+const char * const *__kvm_skip_events_arm64(void);
+const char * const *__kvm_skip_events_loongarch(void);
+const char * const *__kvm_skip_events_powerpc(void);
+const char * const *__kvm_skip_events_riscv(void);
+const char * const *__kvm_skip_events_s390(void);
+const char * const *__kvm_skip_events_x86(void);
+
+bool kvm_need_default_arch_event(uint16_t e_machine, int argc, const char **argv);
+int kvm_add_default_arch_event(uint16_t e_machine, int *argc, const char **argv);
+int __kvm_add_default_arch_event_powerpc(int *argc, const char **argv);
+int __kvm_add_default_arch_event_x86(int *argc, const char **argv);
+
+#else /* !HAVE_LIBTRACEEVENT */
+
+static inline bool kvm_need_default_arch_event(uint16_t e_machine __maybe_unused,
+					       int argc __maybe_unused,
+					       const char **argv __maybe_unused)
+{
+	return false;
+}
+
+static inline int kvm_add_default_arch_event(uint16_t e_machine __maybe_unused,
+					     int *argc __maybe_unused,
+					     const char **argv __maybe_unused)
+{
+	return 0;
+}
+
+#endif /* HAVE_LIBTRACEEVENT */
+
+static inline struct kvm_info *kvm_info__get(struct kvm_info *ki)
+{
+	if (ki)
+		refcount_inc(&ki->refcnt);
+	return ki;
+}
+
+static inline void kvm_info__put(struct kvm_info *ki)
+{
+	if (ki && refcount_dec_and_test(&ki->refcnt))
+		free(ki);
+}
+
+static inline void __kvm_info__zput(struct kvm_info **ki)
+{
+	kvm_info__put(*ki);
+	*ki = NULL;
+}
+
+#define kvm_info__zput(ki) __kvm_info__zput(&ki)
+
+static inline struct kvm_info *kvm_info__new(void)
+{
+	struct kvm_info *ki;
+
+	ki = zalloc(sizeof(*ki));
+	if (ki)
+		refcount_set(&ki->refcnt, 1);
+
+	return ki;
+}
+
+#endif /* __PERF_KVM_STAT_H */