Merge tag 'irq-core-2023-04-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull interrupt updates from Thomas Gleixner:
 "Core:

   - Add tracepoints for tasklet callbacks which makes it possible to
     analyze individual tasklet functions instead of guess working from
     the overall duration of tasklet processing

   - Ensure that secondary interrupt threads have their affinity
     adjusted correctly

  Drivers:

   - A large rework of the RISC-V IPI management to prepare for a new
     RISC-V interrupt architecture

   - Small fixes and enhancements all over the place

   - Removal of support for various obsolete hardware platforms and the
     related code"

* tag 'irq-core-2023-04-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
  irqchip/st: Remove stih415/stih416 and stid127 platforms support
  irqchip/gic-v3: Add Rockchip 3588001 erratum workaround
  genirq: Update affinity of secondary threads
  softirq: Add trace points for tasklet entry/exit
  irqchip/loongson-pch-pic: Fix pch_pic_acpi_init calling
  irqchip/loongson-pch-pic: Fix registration of syscore_ops
  irqchip/loongson-eiointc: Fix registration of syscore_ops
  irqchip/loongson-eiointc: Fix incorrect use of acpi_get_vec_parent
  irqchip/loongson-eiointc: Fix returned value on parsing MADT
  irqchip/riscv-intc: Add empty irq_eoi() for chained irq handlers
  RISC-V: Use IPIs for remote icache flush when possible
  RISC-V: Use IPIs for remote TLB flush when possible
  RISC-V: Allow marking IPIs as suitable for remote FENCEs
  RISC-V: Treat IPIs as normal Linux IRQs
  irqchip/riscv-intc: Allow drivers to directly discover INTC hwnode
  RISC-V: Clear SIP bit only when using SBI IPI operations
  irqchip/irq-sifive-plic: Add syscore callbacks for hibernation
  irqchip: Use of_property_read_bool() for boolean properties
  irqchip/bcm-6345-l1: Request memory region
  irqchip/gicv3: Workaround for NVIDIA erratum T241-FABRIC-4
  ...

1 files changed, 47 insertions, 0 deletions

diff --git a/include/trace/events/irq.h b/include/trace/events/irq.h
index eeceafaaea4c..a07b4607b663 100644
--- a/include/trace/events/irq.h
+++ b/include/trace/events/irq.h
@@ -160,6 +160,53 @@ DEFINE_EVENT(softirq, softirq_raise,
 	TP_ARGS(vec_nr)
 );
 
+DECLARE_EVENT_CLASS(tasklet,
+
+	TP_PROTO(struct tasklet_struct *t, void *func),
+
+	TP_ARGS(t, func),
+
+	TP_STRUCT__entry(
+		__field(	void *,	tasklet)
+		__field(	void *,	func)
+	),
+
+	TP_fast_assign(
+		__entry->tasklet = t;
+		__entry->func = func;
+	),
+
+	TP_printk("tasklet=%ps function=%ps", __entry->tasklet, __entry->func)
+);
+
+/**
+ * tasklet_entry - called immediately before the tasklet is run
+ * @t: tasklet pointer
+ * @func: tasklet callback or function being run
+ *
+ * Used to find individual tasklet execution time
+ */
+DEFINE_EVENT(tasklet, tasklet_entry,
+
+	TP_PROTO(struct tasklet_struct *t, void *func),
+
+	TP_ARGS(t, func)
+);
+
+/**
+ * tasklet_exit - called immediately after the tasklet is run
+ * @t: tasklet pointer
+ * @func: tasklet callback or function being run
+ *
+ * Used to find individual tasklet execution time
+ */
+DEFINE_EVENT(tasklet, tasklet_exit,
+
+	TP_PROTO(struct tasklet_struct *t, void *func),
+
+	TP_ARGS(t, func)
+);
+
 #endif /*  _TRACE_IRQ_H */
 
 /* This part must be outside protection */