From nobody Fri Dec 19 19:20:25 2025 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 4612527511A; Mon, 19 May 2025 10:28:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747650483; cv=none; b=sH3QEOjDqwc4em8UdmFg908mjIgyFivcNlSc6XKVrUBRhZwuWxuxazhHdIFz8dPSEdYa3caybEVomHIB0VRGZy1pvya8TtcwlBNBMpCpOEahuJlAFVpO9tIV8/UBVFPLi/u99s/jE6MndbLliTTPVVCLgd0cSeSNsumdppTCsJw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747650483; c=relaxed/simple; bh=rIw11Zll8gfZyXn921OMUK/umkLs8qpFl0Fgt2tFyKg=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=HBBIinqZNp2mkmqPBnnI72YtPYprPz5xCkZ5E65xjQ+YqJzYdAUKJxOWBn5WXsJdLO14wAGYIze147oR7IvtRtjghRgJY9GZyAQL1I29zE+zMpkdQQPL46sN4vvHpBRmbXLwQP5QxWOmEGnKbgTxeHxDtHyUCdftBy2JiGMNy4w= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=qqrrfclV; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=SHfd9r2G; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="qqrrfclV"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="SHfd9r2G" From: Nam Cao DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1747650479; 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=Pniv2XiPVav7l2RNqiguNnZ/6Zs0ZqDeX4qxyOQZv3I=; b=qqrrfclV9M57FVjjpilRVZ0aWImYjm+UK+p/Ch6WZWXqH4uZaT0gL8aqzNy5zd/6NKs8pr brOIjqBYAGLRt8xEeLn6CnDK8HD+OvEIgJSNqC7jHd3TWiolfysmWBwsTvtUPW3wONalse ydPuDXcNoSfyz4ugXWmAaNfotyZHcidqsbo4DmZksEGywrVyrIjbVQ50/hgIZX19oYih+V TqL0NHAPfbayjViWsVUv8izoR3o9SR9Hulp2Jl6lxtgPvzux5bIEP/o5o0QizUC0bChk7F jJVYhEn7qyPer8/55RxAGD2WJcc1HJmYA9Ac1HgriMJOKRdcql+FJ+YpqfouZw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1747650479; 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=Pniv2XiPVav7l2RNqiguNnZ/6Zs0ZqDeX4qxyOQZv3I=; b=SHfd9r2GJlQPUBSnuMyaCLQvuOMCkM3XSQPLAjQ4SDpoxLEg0KJkKa3e2VADIJwlqbkglW kdVag5hQUrPa5rAA== To: Steven Rostedt , Gabriele Monaco , linux-trace-kernel@vger.kernel.org, linux-kernel@vger.kernel.org Cc: john.ogness@linutronix.de, Nam Cao Subject: [PATCH v9 14/22] rv: Add rtapp container monitor Date: Mon, 19 May 2025 12:27:32 +0200 Message-Id: <20137b23b322d230be0c1bef4f63823499a2d118.1747649899.git.namcao@linutronix.de> In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add the container "rtapp" which is the monitor collection for detecting problems with real-time applications. The monitors will be added in the follow-up commits. Reviewed-by: Gabriele Monaco Signed-off-by: Nam Cao --- kernel/trace/rv/Kconfig | 1 + kernel/trace/rv/Makefile | 1 + kernel/trace/rv/monitors/rtapp/Kconfig | 14 +++++++++++ kernel/trace/rv/monitors/rtapp/rtapp.c | 33 ++++++++++++++++++++++++++ kernel/trace/rv/monitors/rtapp/rtapp.h | 3 +++ 5 files changed, 52 insertions(+) create mode 100644 kernel/trace/rv/monitors/rtapp/Kconfig create mode 100644 kernel/trace/rv/monitors/rtapp/rtapp.c create mode 100644 kernel/trace/rv/monitors/rtapp/rtapp.h diff --git a/kernel/trace/rv/Kconfig b/kernel/trace/rv/Kconfig index 6e157f964991..5c407d291661 100644 --- a/kernel/trace/rv/Kconfig +++ b/kernel/trace/rv/Kconfig @@ -41,6 +41,7 @@ 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/rtapp/Kconfig" # Add new monitors here =20 config RV_REACTORS diff --git a/kernel/trace/rv/Makefile b/kernel/trace/rv/Makefile index f9b2cd0483c3..9b28c2419995 100644 --- a/kernel/trace/rv/Makefile +++ b/kernel/trace/rv/Makefile @@ -12,6 +12,7 @@ obj-$(CONFIG_RV_MON_SNROC) +=3D monitors/snroc/snroc.o obj-$(CONFIG_RV_MON_SCPD) +=3D monitors/scpd/scpd.o obj-$(CONFIG_RV_MON_SNEP) +=3D monitors/snep/snep.o obj-$(CONFIG_RV_MON_SNCID) +=3D monitors/sncid/sncid.o +obj-$(CONFIG_RV_MON_RTAPP) +=3D monitors/rtapp/rtapp.o # Add new monitors here obj-$(CONFIG_RV_REACTORS) +=3D rv_reactors.o obj-$(CONFIG_RV_REACT_PRINTK) +=3D reactor_printk.o diff --git a/kernel/trace/rv/monitors/rtapp/Kconfig b/kernel/trace/rv/monit= ors/rtapp/Kconfig new file mode 100644 index 000000000000..658bb78e733a --- /dev/null +++ b/kernel/trace/rv/monitors/rtapp/Kconfig @@ -0,0 +1,14 @@ +config RV_MON_RTAPP + depends on RV + bool "rtapp monitor" + help + Collection of monitors to check for common problems with real-time + application that may cause unexpected latency. + + If you are developing a real-time system and not entirely sure whether + the applications are designed correctly for real-time, you want to say + Y here. + + Beware that enabling this may have impact on performance, even if the + monitors are not running. Therefore you probably should say N for + production kernel. diff --git a/kernel/trace/rv/monitors/rtapp/rtapp.c b/kernel/trace/rv/monit= ors/rtapp/rtapp.c new file mode 100644 index 000000000000..fd75fc927d65 --- /dev/null +++ b/kernel/trace/rv/monitors/rtapp/rtapp.c @@ -0,0 +1,33 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include +#include +#include + +#define MODULE_NAME "rtapp" + +#include "rtapp.h" + +struct rv_monitor rv_rtapp; + +struct rv_monitor rv_rtapp =3D { + .name =3D "rtapp", + .description =3D "Collection of monitors for detecting problems with real= -time applications", +}; + +static int __init register_rtapp(void) +{ + return rv_register_monitor(&rv_rtapp, NULL); +} + +static void __exit unregister_rtapp(void) +{ + rv_unregister_monitor(&rv_rtapp); +} + +module_init(register_rtapp); +module_exit(unregister_rtapp); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Nam Cao "); +MODULE_DESCRIPTION("Collection of monitors for detecting problems with rea= l-time applications"); diff --git a/kernel/trace/rv/monitors/rtapp/rtapp.h b/kernel/trace/rv/monit= ors/rtapp/rtapp.h new file mode 100644 index 000000000000..4c200d67c7f6 --- /dev/null +++ b/kernel/trace/rv/monitors/rtapp/rtapp.h @@ -0,0 +1,3 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +extern struct rv_monitor rv_rtapp; --=20 2.39.5