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/internal.h | 47 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 drivers/interconnect/internal.h (limited to 'drivers/interconnect/internal.h') diff --git a/drivers/interconnect/internal.h b/drivers/interconnect/internal.h new file mode 100644 index 000000000..3b9d50589 --- /dev/null +++ b/drivers/interconnect/internal.h @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Interconnect framework internal structs + * + * Copyright (c) 2019, Linaro Ltd. + * Author: Georgi Djakov + */ + +#ifndef __DRIVERS_INTERCONNECT_INTERNAL_H +#define __DRIVERS_INTERCONNECT_INTERNAL_H + +/** + * struct icc_req - constraints that are attached to each node + * @req_node: entry in list of requests for the particular @node + * @node: the interconnect node to which this constraint applies + * @dev: reference to the device that sets the constraints + * @enabled: indicates whether the path with this request is enabled + * @tag: path tag (optional) + * @avg_bw: an integer describing the average bandwidth in kBps + * @peak_bw: an integer describing the peak bandwidth in kBps + */ +struct icc_req { + struct hlist_node req_node; + struct icc_node *node; + struct device *dev; + bool enabled; + u32 tag; + u32 avg_bw; + u32 peak_bw; +}; + +/** + * struct icc_path - interconnect path structure + * @name: a string name of the path (useful for ftrace) + * @num_nodes: number of hops (nodes) + * @reqs: array of the requests applicable to this path of nodes + */ +struct icc_path { + const char *name; + size_t num_nodes; + struct icc_req reqs[] __counted_by(num_nodes); +}; + +struct icc_path *icc_get(struct device *dev, const char *src, const char *dst); +int icc_debugfs_client_init(struct dentry *icc_dir); + +#endif -- cgit v1.3.1