From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 97DD72727EC for ; Tue, 15 Jul 2025 07:16:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752563799; cv=none; b=pBZaW/7PY0TH5ayHNE6iKhVFKocroYNZSceEWnTng/gOPo3nQoahQcgvlKQk4WXDJkV5CqpSC21YzegaRkto7Bov0uxdt2n0fLCf5AeMMxhyXSIrjfKims2C6N3zn+rgSwYkX+RboX75itlFvGT32pSr4wCaJMPX7T4rg6SFy20= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752563799; c=relaxed/simple; bh=BiO/jWrGdhf1P4p9ap7NeVYW1O9pLIVSE9l248KWsbs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ZflTpU5dR33fw78MQbe40inrlvA+2pLcM+GfS3WwET24T04G+o0WEXW3mBUPHz88L7nCaLNiAELpvoLUThWXUtbYSJPKsYNq5+G6wvQ+V5Z1ZxXUe9y/Co2Vwv1FO142tM8H5x9Gjt8g5wtr5PtRptvxrus1Lc73aqWt9U+hNIE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=jOM94OeX; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="jOM94OeX" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1752563795; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ey2nPZfRrk5n8Uc+KHjitc+9edgW/+AFGkfck3f7IIU=; b=jOM94OeXRTQ2WvcFpeixiBH7huq+0HrkDJAZy8JUPa77f6dbL7zLSXBy0lPu7FUBhofzvE P/yjOa5crj0NoocrDRkBkr5PRKwE6dCR1a9NOgPiOFw2T0nZyIawnjDJbf+Z7NS81YwvOk /Rudynx35DnUIAhi6Z9Z2o92tUh/e08= Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-653-hjJcTeByOsSCvMuRQgYtiw-1; Tue, 15 Jul 2025 03:16:31 -0400 X-MC-Unique: hjJcTeByOsSCvMuRQgYtiw-1 X-Mimecast-MFC-AGG-ID: hjJcTeByOsSCvMuRQgYtiw_1752563790 Received: from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.111]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 433F21808993; Tue, 15 Jul 2025 07:16:30 +0000 (UTC) Received: from gmonaco-thinkpadt14gen3.rmtit.com (unknown [10.45.224.115]) by mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 85DC118046C3; Tue, 15 Jul 2025 07:16:24 +0000 (UTC) From: Gabriele Monaco To: linux-kernel@vger.kernel.org, Steven Rostedt , Jonathan Corbet , Masami Hiramatsu , linux-trace-kernel@vger.kernel.org, linux-doc@vger.kernel.org Cc: Gabriele Monaco , Ingo Molnar , Peter Zijlstra , Nam Cao , Tomas Glozar , Juri Lelli , Clark Williams , John Kacur Subject: [PATCH v3 15/17] rv: Replace tss monitor with more complete sts Date: Tue, 15 Jul 2025 09:14:32 +0200 Message-ID: <20250715071434.22508-16-gmonaco@redhat.com> In-Reply-To: <20250715071434.22508-1-gmonaco@redhat.com> References: <20250715071434.22508-1-gmonaco@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 The tss monitor currently guarantees context switches can happen only while scheduling, but it doesn't enforce that each scheduling call implies a task switch. This can be implied only if we rely on the newly introduced sched_switch_vain tracepoint, which represents a scheduler call where the previously running task is the same that is picked to run next, in fact no context is switched. Replace the monitor with a more comprehensive specification which implies tss but also ensures that: * each scheduler call switches context (or has a vain switch) * each context switch happens with interrupts disabled Cc: Ingo Molnar Cc: Peter Zijlstra Signed-off-by: Gabriele Monaco --- Documentation/trace/rv/monitor_sched.rst | 68 +++++++--- kernel/trace/rv/Kconfig | 2 +- kernel/trace/rv/Makefile | 2 +- kernel/trace/rv/monitors/sts/Kconfig | 18 +++ kernel/trace/rv/monitors/sts/sts.c | 117 ++++++++++++++++++ kernel/trace/rv/monitors/sts/sts.h | 97 +++++++++++++++ .../{tss/tss_trace.h => sts/sts_trace.h} | 8 +- kernel/trace/rv/monitors/tss/Kconfig | 14 --- kernel/trace/rv/monitors/tss/tss.c | 90 -------------- kernel/trace/rv/monitors/tss/tss.h | 47 ------- kernel/trace/rv/rv_trace.h | 2 +- tools/verification/models/sched/sts.dot | 29 +++++ tools/verification/models/sched/tss.dot | 18 --- 13 files changed, 316 insertions(+), 196 deletions(-) create mode 100644 kernel/trace/rv/monitors/sts/Kconfig create mode 100644 kernel/trace/rv/monitors/sts/sts.c create mode 100644 kernel/trace/rv/monitors/sts/sts.h rename kernel/trace/rv/monitors/{tss/tss_trace.h => sts/sts_trace.h} (67%) delete mode 100644 kernel/trace/rv/monitors/tss/Kconfig delete mode 100644 kernel/trace/rv/monitors/tss/tss.c delete mode 100644 kernel/trace/rv/monitors/tss/tss.h create mode 100644 tools/verification/models/sched/sts.dot delete mode 100644 tools/verification/models/sched/tss.dot diff --git a/Documentation/trace/rv/monitor_sched.rst b/Documentation/trace/rv/monitor_sched.rst index 5cb58ac441d83..e4171aadef1c2 100644 --- a/Documentation/trace/rv/monitor_sched.rst +++ b/Documentation/trace/rv/monitor_sched.rst @@ -40,26 +40,6 @@ defined in by Daniel Bristot in [1]. Currently we included the following: -Monitor tss -~~~~~~~~~~~ - -The task switch while scheduling (tss) monitor ensures a task switch happens -only in scheduling context, that is inside a call to `__schedule`:: - - | - | - v - +-----------------+ - | thread | <+ - +-----------------+ | - | | - | schedule_entry | schedule_exit - v | - sched_switch | - +--------------- | - | sched | - +--------------> -+ - Monitor sco ~~~~~~~~~~~ @@ -170,6 +150,54 @@ schedule is not called with interrupt disabled:: | cant_sched -+ +Monitor sts +~~~~~~~~~~~ + +The schedule implies task switch (sts) monitor ensures a task switch happens in +every scheduling context, that is inside a call to ``__schedule``, as well as no +task switch can happen without scheduling and before interrupts are disabled. +This require the special type of switch called vain, which occurs when the next +task picked for execution is the same as the previously running one, in fact no +real task switch occurs:: + + | + | + v + #====================# irq_disable + H H irq_enable + H thread H --------------+ + H H | + +-------------> H H <-------------+ + | #====================# + | | + | | schedule_entry + | v + | +--------------------+ + | | scheduling | <+ + | +--------------------+ | + | | | + | | irq_disable | irq_enable + | v | + | +--------------------+ | + | | disable_to_switch | -+ + | schedule_exit +--------------------+ + | | + | | sched_switch + | | sched_switch_vain + | v + | +--------------------+ + | | switching | + | +--------------------+ + | | + | | irq_enable + | v + | +--------------------+ irq_disable + | | | irq_enable + | | enable_to_exit | --------------+ + | | | | + +-------------- | | <-------------+ + +--------------------+ + References ---------- diff --git a/kernel/trace/rv/Kconfig b/kernel/trace/rv/Kconfig index 26017378f79b8..da62d97d329aa 100644 --- a/kernel/trace/rv/Kconfig +++ b/kernel/trace/rv/Kconfig @@ -45,12 +45,12 @@ source "kernel/trace/rv/monitors/wip/Kconfig" source "kernel/trace/rv/monitors/wwnr/Kconfig" source "kernel/trace/rv/monitors/sched/Kconfig" -source "kernel/trace/rv/monitors/tss/Kconfig" source "kernel/trace/rv/monitors/sco/Kconfig" source "kernel/trace/rv/monitors/snroc/Kconfig" source "kernel/trace/rv/monitors/scpd/Kconfig" source "kernel/trace/rv/monitors/snep/Kconfig" source "kernel/trace/rv/monitors/sncid/Kconfig" +source "kernel/trace/rv/monitors/sts/Kconfig" # Add new sched monitors here source "kernel/trace/rv/monitors/rtapp/Kconfig" diff --git a/kernel/trace/rv/Makefile b/kernel/trace/rv/Makefile index 13ec2944c6650..db8653f7cedf3 100644 --- a/kernel/trace/rv/Makefile +++ b/kernel/trace/rv/Makefile @@ -6,7 +6,6 @@ obj-$(CONFIG_RV) += rv.o obj-$(CONFIG_RV_MON_WIP) += monitors/wip/wip.o obj-$(CONFIG_RV_MON_WWNR) += monitors/wwnr/wwnr.o obj-$(CONFIG_RV_MON_SCHED) += monitors/sched/sched.o -obj-$(CONFIG_RV_MON_TSS) += monitors/tss/tss.o obj-$(CONFIG_RV_MON_SCO) += monitors/sco/sco.o obj-$(CONFIG_RV_MON_SNROC) += monitors/snroc/snroc.o obj-$(CONFIG_RV_MON_SCPD) += monitors/scpd/scpd.o @@ -15,6 +14,7 @@ obj-$(CONFIG_RV_MON_SNCID) += monitors/sncid/sncid.o obj-$(CONFIG_RV_MON_RTAPP) += monitors/rtapp/rtapp.o obj-$(CONFIG_RV_MON_PAGEFAULT) += monitors/pagefault/pagefault.o obj-$(CONFIG_RV_MON_SLEEP) += monitors/sleep/sleep.o +obj-$(CONFIG_RV_MON_STS) += monitors/sts/sts.o # Add new monitors here obj-$(CONFIG_RV_REACTORS) += rv_reactors.o obj-$(CONFIG_RV_REACT_PRINTK) += reactor_printk.o diff --git a/kernel/trace/rv/monitors/sts/Kconfig b/kernel/trace/rv/monitors/sts/Kconfig new file mode 100644 index 0000000000000..3fb1b5387566c --- /dev/null +++ b/kernel/trace/rv/monitors/sts/Kconfig @@ -0,0 +1,18 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +config RV_MON_STS + depends on RV + depends on TRACE_IRQFLAGS + depends on RV_MON_SCHED + default y + select DA_MON_EVENTS_IMPLICIT + bool "sts monitor" + help + Monitor to ensure relationships between scheduler and switches + * each call to the scheduler implies a switch + * switches only happen inside the scheduler + * switches happen with interrupt disabled + This monitor is part of the sched monitors collection. + + For further information, see: + Documentation/trace/rv/monitor_sched.rst diff --git a/kernel/trace/rv/monitors/sts/sts.c b/kernel/trace/rv/monitors/sts/sts.c new file mode 100644 index 0000000000000..deb18a9d48f3b --- /dev/null +++ b/kernel/trace/rv/monitors/sts/sts.c @@ -0,0 +1,117 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include +#include +#include +#include +#include +#include +#include + +#define MODULE_NAME "sts" + +#include +#include +#include +#include + +#include "sts.h" + +static struct rv_monitor rv_sts; +DECLARE_DA_MON_PER_CPU(sts, unsigned char); + +static void handle_irq_disable(void *data, unsigned long ip, unsigned long parent_ip) +{ + da_handle_event_sts(irq_disable_sts); +} + +static void handle_irq_enable(void *data, unsigned long ip, unsigned long parent_ip) +{ + da_handle_event_sts(irq_enable_sts); +} + +static void handle_sched_switch(void *data, bool preempt, + struct task_struct *prev, + struct task_struct *next, + unsigned int prev_state) +{ + da_handle_event_sts(sched_switch_sts); +} + +static void handle_sched_switch_vain(void *data, bool preempt, + struct task_struct *tsk, + unsigned int tsk_state) +{ + da_handle_event_sts(sched_switch_vain_sts); +} + +static void handle_schedule_entry(void *data, bool preempt, unsigned long ip) +{ + da_handle_event_sts(schedule_entry_sts); +} + +static void handle_schedule_exit(void *data, bool is_switch, unsigned long ip) +{ + da_handle_start_event_sts(schedule_exit_sts); +} + +static int enable_sts(void) +{ + int retval; + + retval = da_monitor_init_sts(); + if (retval) + return retval; + + rv_attach_trace_probe("sts", irq_disable, handle_irq_disable); + rv_attach_trace_probe("sts", irq_enable, handle_irq_enable); + rv_attach_trace_probe("sts", sched_switch, handle_sched_switch); + rv_attach_trace_probe("sts", sched_switch_vain_tp, handle_sched_switch_vain); + rv_attach_trace_probe("sts", sched_entry_tp, handle_schedule_entry); + rv_attach_trace_probe("sts", sched_exit_tp, handle_schedule_exit); + + return 0; +} + +static void disable_sts(void) +{ + rv_sts.enabled = 0; + + rv_detach_trace_probe("sts", irq_disable, handle_irq_disable); + rv_detach_trace_probe("sts", irq_enable, handle_irq_enable); + rv_detach_trace_probe("sts", sched_switch, handle_sched_switch); + rv_detach_trace_probe("sts", sched_switch_vain_tp, handle_sched_switch_vain); + rv_detach_trace_probe("sts", sched_entry_tp, handle_schedule_entry); + rv_detach_trace_probe("sts", sched_exit_tp, handle_schedule_exit); + + da_monitor_destroy_sts(); +} + +/* + * This is the monitor register section. + */ +static struct rv_monitor rv_sts = { + .name = "sts", + .description = "schedule implies task switch.", + .enable = enable_sts, + .disable = disable_sts, + .reset = da_monitor_reset_all_sts, + .enabled = 0, +}; + +static int __init register_sts(void) +{ + return rv_register_monitor(&rv_sts, &rv_sched); +} + +static void __exit unregister_sts(void) +{ + rv_unregister_monitor(&rv_sts); +} + +module_init(register_sts); +module_exit(unregister_sts); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Gabriele Monaco "); +MODULE_DESCRIPTION("sts: schedule implies task switch."); diff --git a/kernel/trace/rv/monitors/sts/sts.h b/kernel/trace/rv/monitors/sts/sts.h new file mode 100644 index 0000000000000..537ea1b2c023a --- /dev/null +++ b/kernel/trace/rv/monitors/sts/sts.h @@ -0,0 +1,97 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Automatically generated C representation of sts automaton + * For further information about this format, see kernel documentation: + * Documentation/trace/rv/deterministic_automata.rst + */ + +enum states_sts { + thread_sts = 0, + disable_to_switch_sts, + enable_to_exit_sts, + scheduling_sts, + switching_sts, + state_max_sts +}; + +#define INVALID_STATE state_max_sts + +enum events_sts { + irq_disable_sts = 0, + irq_enable_sts, + sched_switch_sts, + sched_switch_vain_sts, + schedule_entry_sts, + schedule_exit_sts, + event_max_sts +}; + +struct automaton_sts { + char *state_names[state_max_sts]; + char *event_names[event_max_sts]; + unsigned char function[state_max_sts][event_max_sts]; + unsigned char initial_state; + bool final_states[state_max_sts]; +}; + +static const struct automaton_sts automaton_sts = { + .state_names = { + "thread", + "disable_to_switch", + "enable_to_exit", + "scheduling", + "switching" + }, + .event_names = { + "irq_disable", + "irq_enable", + "sched_switch", + "sched_switch_vain", + "schedule_entry", + "schedule_exit" + }, + .function = { + { + thread_sts, + thread_sts, + INVALID_STATE, + INVALID_STATE, + scheduling_sts, + INVALID_STATE + }, + { + INVALID_STATE, + scheduling_sts, + switching_sts, + switching_sts, + INVALID_STATE, + INVALID_STATE + }, + { + enable_to_exit_sts, + enable_to_exit_sts, + INVALID_STATE, + INVALID_STATE, + INVALID_STATE, + thread_sts + }, + { + disable_to_switch_sts, + INVALID_STATE, + INVALID_STATE, + INVALID_STATE, + INVALID_STATE, + INVALID_STATE + }, + { + INVALID_STATE, + enable_to_exit_sts, + INVALID_STATE, + INVALID_STATE, + INVALID_STATE, + INVALID_STATE + }, + }, + .initial_state = thread_sts, + .final_states = { 1, 0, 0, 0, 0 }, +}; diff --git a/kernel/trace/rv/monitors/tss/tss_trace.h b/kernel/trace/rv/monitors/sts/sts_trace.h similarity index 67% rename from kernel/trace/rv/monitors/tss/tss_trace.h rename to kernel/trace/rv/monitors/sts/sts_trace.h index 4619dbb50cc06..d78beb58d5b3d 100644 --- a/kernel/trace/rv/monitors/tss/tss_trace.h +++ b/kernel/trace/rv/monitors/sts/sts_trace.h @@ -4,12 +4,12 @@ * Snippet to be included in rv_trace.h */ -#ifdef CONFIG_RV_MON_TSS -DEFINE_EVENT(event_da_monitor, event_tss, +#ifdef CONFIG_RV_MON_STS +DEFINE_EVENT(event_da_monitor, event_sts, TP_PROTO(char *state, char *event, char *next_state, bool final_state), TP_ARGS(state, event, next_state, final_state)); -DEFINE_EVENT(error_da_monitor, error_tss, +DEFINE_EVENT(error_da_monitor, error_sts, TP_PROTO(char *state, char *event), TP_ARGS(state, event)); -#endif /* CONFIG_RV_MON_TSS */ +#endif /* CONFIG_RV_MON_STS */ diff --git a/kernel/trace/rv/monitors/tss/Kconfig b/kernel/trace/rv/monitors/tss/Kconfig deleted file mode 100644 index 479f86f52e60d..0000000000000 --- a/kernel/trace/rv/monitors/tss/Kconfig +++ /dev/null @@ -1,14 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -# -config RV_MON_TSS - depends on RV - depends on RV_MON_SCHED - default y - select DA_MON_EVENTS_IMPLICIT - bool "tss monitor" - help - Monitor to ensure sched_switch happens only in scheduling context. - This monitor is part of the sched monitors collection. - - For further information, see: - Documentation/trace/rv/monitor_sched.rst diff --git a/kernel/trace/rv/monitors/tss/tss.c b/kernel/trace/rv/monitors/tss/tss.c deleted file mode 100644 index 0452fcd9edcfe..0000000000000 --- a/kernel/trace/rv/monitors/tss/tss.c +++ /dev/null @@ -1,90 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include -#include -#include -#include -#include -#include -#include -#include - -#define MODULE_NAME "tss" - -#include -#include -#include - -#include "tss.h" - -static struct rv_monitor rv_tss; -DECLARE_DA_MON_PER_CPU(tss, unsigned char); - -static void handle_sched_switch(void *data, bool preempt, - struct task_struct *prev, - struct task_struct *next, - unsigned int prev_state) -{ - da_handle_event_tss(sched_switch_tss); -} - -static void handle_schedule_entry(void *data, bool preempt, unsigned long ip) -{ - da_handle_event_tss(schedule_entry_tss); -} - -static void handle_schedule_exit(void *data, bool is_switch, unsigned long ip) -{ - da_handle_start_event_tss(schedule_exit_tss); -} - -static int enable_tss(void) -{ - int retval; - - retval = da_monitor_init_tss(); - if (retval) - return retval; - - rv_attach_trace_probe("tss", sched_switch, handle_sched_switch); - rv_attach_trace_probe("tss", sched_entry_tp, handle_schedule_entry); - rv_attach_trace_probe("tss", sched_exit_tp, handle_schedule_exit); - - return 0; -} - -static void disable_tss(void) -{ - rv_tss.enabled = 0; - - rv_detach_trace_probe("tss", sched_switch, handle_sched_switch); - rv_detach_trace_probe("tss", sched_entry_tp, handle_schedule_entry); - rv_detach_trace_probe("tss", sched_exit_tp, handle_schedule_exit); - - da_monitor_destroy_tss(); -} - -static struct rv_monitor rv_tss = { - .name = "tss", - .description = "task switch while scheduling.", - .enable = enable_tss, - .disable = disable_tss, - .reset = da_monitor_reset_all_tss, - .enabled = 0, -}; - -static int __init register_tss(void) -{ - return rv_register_monitor(&rv_tss, &rv_sched); -} - -static void __exit unregister_tss(void) -{ - rv_unregister_monitor(&rv_tss); -} - -module_init(register_tss); -module_exit(unregister_tss); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Gabriele Monaco "); -MODULE_DESCRIPTION("tss: task switch while scheduling."); diff --git a/kernel/trace/rv/monitors/tss/tss.h b/kernel/trace/rv/monitors/tss/tss.h deleted file mode 100644 index f0a36fda1b873..0000000000000 --- a/kernel/trace/rv/monitors/tss/tss.h +++ /dev/null @@ -1,47 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Automatically generated C representation of tss automaton - * For further information about this format, see kernel documentation: - * Documentation/trace/rv/deterministic_automata.rst - */ - -enum states_tss { - thread_tss = 0, - sched_tss, - state_max_tss -}; - -#define INVALID_STATE state_max_tss - -enum events_tss { - sched_switch_tss = 0, - schedule_entry_tss, - schedule_exit_tss, - event_max_tss -}; - -struct automaton_tss { - char *state_names[state_max_tss]; - char *event_names[event_max_tss]; - unsigned char function[state_max_tss][event_max_tss]; - unsigned char initial_state; - bool final_states[state_max_tss]; -}; - -static const struct automaton_tss automaton_tss = { - .state_names = { - "thread", - "sched" - }, - .event_names = { - "sched_switch", - "schedule_entry", - "schedule_exit" - }, - .function = { - { INVALID_STATE, sched_tss, INVALID_STATE }, - { sched_tss, INVALID_STATE, thread_tss }, - }, - .initial_state = thread_tss, - .final_states = { 1, 0 }, -}; diff --git a/kernel/trace/rv/rv_trace.h b/kernel/trace/rv/rv_trace.h index d38e0d3abdfde..dbd2f2ef513a7 100644 --- a/kernel/trace/rv/rv_trace.h +++ b/kernel/trace/rv/rv_trace.h @@ -58,11 +58,11 @@ DECLARE_EVENT_CLASS(error_da_monitor, ); #include -#include #include #include #include #include +#include // Add new monitors based on CONFIG_DA_MON_EVENTS_IMPLICIT here #endif /* CONFIG_DA_MON_EVENTS_IMPLICIT */ diff --git a/tools/verification/models/sched/sts.dot b/tools/verification/models/sched/sts.dot new file mode 100644 index 0000000000000..8152675b4f528 --- /dev/null +++ b/tools/verification/models/sched/sts.dot @@ -0,0 +1,29 @@ +digraph state_automaton { + center = true; + size = "7,11"; + {node [shape = circle] "disable_to_switch"}; + {node [shape = circle] "enable_to_exit"}; + {node [shape = circle] "scheduling"}; + {node [shape = circle] "switching"}; + {node [shape = plaintext, style=invis, label=""] "__init_thread"}; + {node [shape = doublecircle] "thread"}; + {node [shape = circle] "thread"}; + "__init_thread" -> "thread"; + "disable_to_switch" [label = "disable_to_switch"]; + "disable_to_switch" -> "scheduling" [ label = "irq_enable" ]; + "disable_to_switch" -> "switching" [ label = "sched_switch\nsched_switch_vain" ]; + "enable_to_exit" [label = "enable_to_exit"]; + "enable_to_exit" -> "enable_to_exit" [ label = "irq_disable\nirq_enable" ]; + "enable_to_exit" -> "thread" [ label = "schedule_exit" ]; + "scheduling" [label = "scheduling"]; + "scheduling" -> "disable_to_switch" [ label = "irq_disable" ]; + "switching" [label = "switching"]; + "switching" -> "enable_to_exit" [ label = "irq_enable" ]; + "thread" [label = "thread", color = green3]; + "thread" -> "scheduling" [ label = "schedule_entry" ]; + "thread" -> "thread" [ label = "irq_disable\nirq_enable" ]; + { rank = min ; + "__init_thread"; + "thread"; + } +} diff --git a/tools/verification/models/sched/tss.dot b/tools/verification/models/sched/tss.dot deleted file mode 100644 index 7dfa1d9121bbd..0000000000000 --- a/tools/verification/models/sched/tss.dot +++ /dev/null @@ -1,18 +0,0 @@ -digraph state_automaton { - center = true; - size = "7,11"; - {node [shape = plaintext] "sched"}; - {node [shape = plaintext, style=invis, label=""] "__init_thread"}; - {node [shape = ellipse] "thread"}; - {node [shape = plaintext] "thread"}; - "__init_thread" -> "thread"; - "sched" [label = "sched"]; - "sched" -> "sched" [ label = "sched_switch" ]; - "sched" -> "thread" [ label = "schedule_exit" ]; - "thread" [label = "thread", color = green3]; - "thread" -> "sched" [ label = "schedule_entry" ]; - { rank = min ; - "__init_thread"; - "thread"; - } -} -- 2.50.1