From 9cc63f8bcd560c760d0b12e15bba8f81c86237cf Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Fri, 14 Aug 2026 15:43:51 -0700 Subject: Merge branches 'expcb.2026.07.24a', 'misc.2026.07.30a', 'rcu-tasks.2026.07.30a', 'srcu.2026.08.11a' and 'torture.2026.08.14a' into HEAD Changes: Make expedited grace periods expedite normal RCU callbacks Miscellaneous fixes: * Improve diagnostic output with character task states. * Mark accesses to inform KCSAN of concurrency design. * Move from kmalloc() to kmalloc_obj(). * Documentation updates. * Improve handling of RCU deferred quiescent states. * Clean up unused function arguments and structure fields. * Reduce show_rcu_gp_kthreads() stack space. Tasks RCU updates: * Clean up after SRCU re-implementation of Tasks Trace RCU. * Mark accesses to inform KCSAN of concurrency design. * Add ->lazy_timer status to diagnostic output. * Remove an unnecessary memory barrier. * Fix a data race, courtesy of KCSAN. * Documentation updates. * Convert cond_resched_tasks_rcu_qs() from macro to static inline function. SRCU updates: * Add Rust helpers for SRCU. * Avoid losing queued work at cleanup_srcu_struct() time. Torture-test updates: * Preparation work for immediate RCU priority deboosting. * Test RCU readers from real interrupt handlers (as opposed to softirq). * Simplify code through use of cpumask_next_wrap(). * Improve diagnostic output with character task states. * Add rcutorture.nwriters parameter to allow lightweight stall testing, and rcutorture.stall_only to make doing so easier. * Test an RCU Tasks Trace grace period implying an RCU grace period. * Make RCU Tasks Trace torturing track reader batches. * Fix a data race, courtesy of KCSAN. * Plug a shuffle_tmp_mask memory leak on kthread spawn failure. --- drivers/interconnect/trace.h | 88 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 drivers/interconnect/trace.h (limited to 'drivers/interconnect/trace.h') diff --git a/drivers/interconnect/trace.h b/drivers/interconnect/trace.h new file mode 100644 index 000000000..206373546 --- /dev/null +++ b/drivers/interconnect/trace.h @@ -0,0 +1,88 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Interconnect framework tracepoints + * Copyright (c) 2019, Linaro Ltd. + * Author: Georgi Djakov + */ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM interconnect + +#if !defined(_TRACE_INTERCONNECT_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_INTERCONNECT_H + +#include +#include + +TRACE_EVENT(icc_set_bw, + + TP_PROTO(struct icc_path *p, struct icc_node *n, int i, + u32 avg_bw, u32 peak_bw), + + TP_ARGS(p, n, i, avg_bw, peak_bw), + + TP_STRUCT__entry( + __string(path_name, p->name) + __string(dev, dev_name(p->reqs[i].dev)) + __string(node_name, n->name) + __field(u32, avg_bw) + __field(u32, peak_bw) + __field(u32, node_avg_bw) + __field(u32, node_peak_bw) + ), + + TP_fast_assign( + __assign_str(path_name); + __assign_str(dev); + __assign_str(node_name); + __entry->avg_bw = avg_bw; + __entry->peak_bw = peak_bw; + __entry->node_avg_bw = n->avg_bw; + __entry->node_peak_bw = n->peak_bw; + ), + + TP_printk("path=%s dev=%s node=%s avg_bw=%u peak_bw=%u agg_avg=%u agg_peak=%u", + __get_str(path_name), + __get_str(dev), + __get_str(node_name), + __entry->avg_bw, + __entry->peak_bw, + __entry->node_avg_bw, + __entry->node_peak_bw) +); + +TRACE_EVENT(icc_set_bw_end, + + TP_PROTO(struct icc_path *p, int ret), + + TP_ARGS(p, ret), + + TP_STRUCT__entry( + __string(path_name, p->name) + __string(dev, dev_name(p->reqs[0].dev)) + __field(int, ret) + ), + + TP_fast_assign( + __assign_str(path_name); + __assign_str(dev); + __entry->ret = ret; + ), + + TP_printk("path=%s dev=%s ret=%d", + __get_str(path_name), + __get_str(dev), + __entry->ret) +); + +#endif /* _TRACE_INTERCONNECT_H */ + +/* This part must be outside protection */ + +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . + +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE trace + +#include -- cgit v1.3.1