From nobody Wed Oct 8 00:43:24 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 6E74F2FD588; Fri, 4 Jul 2025 13:20:41 +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=1751635244; cv=none; b=b7CdS5AQyuw/91um/ZNY3y/qOZRTAohozIQfFgcEcAVcwzAGUcrrYYKsltdvVV1dvl2aileAqLBAmzfo3yMid9BZAlgdARBHsXXC8Nf6zXbMWDiHN0+kGnhhNXvFRorD8XvGRkrFmCD86WqJlD+17G9XQf30lfoljPU/me1oWJ0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751635244; c=relaxed/simple; bh=DcRi22O4d3UBw9x9KLG2WX/b+wJDIh4hVT93QK7WiGQ=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=DVnDHaUGnjACQLBbcC0E51qRDrMjtIqHOQT2OsOxMJTm9AIQnukuFPWQpAYCxfSs/Uv7k3LczVF/dHiygH114UH4fU0IvkpNhPdw1EGzzOEyKbn6gkXQUOCjZPZX9qnxIbvIm8x/fD1UxBDjNYTBWCmzfs7qoly9GjoZxXrOhIM= 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=tlr7Q1Lz; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=5gJAsm1q; 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="tlr7Q1Lz"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="5gJAsm1q" From: Nam Cao DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1751635239; 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=DH23WTRlvZDwouVOr7H+Q/MXu18JPTVYiKREYg9L8wY=; b=tlr7Q1Lzfpo07vOFcwWFU1JXM6o9RFMsItY1e1tBlq+dKbbXHK4hx+P6qr/iodwqB/KPQj XgTg+Sen1/Sq1oHfyBWNeU0+hPsJEvRSnncJEoB/SFwOVoJkP72dA48a9sL/FuxOXQKo1e 60ciwsvF3h5TyjoHcq1xBr6VXRNlt0cyVVPzWUW9tZnoaH9frSU+bIiSFhbtdE6quCDA2V qRjC0xfoEevNq4ixA/E2DUQ4tbvxT+405EkQ2bS0ClG3KV/mOgD0MwK05RDaXcCB5ZSsQg 2NKg4UGGT0n6fS71qMMdAg/e77Cudrk7qoHzukr03XEXQWYS/ZD+YAEyfuDelw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1751635239; 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=DH23WTRlvZDwouVOr7H+Q/MXu18JPTVYiKREYg9L8wY=; b=5gJAsm1qs5ExWfSrt6brx5S4+FQyE98oHhbE0dp7eRvBkyAoNW/FWH3Ydf7C7m6GKB8OTa 3GnfcveYX/9MxGCQ== To: Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , linux-trace-kernel@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Gabriele Monaco , john.ogness@linutronix.de, Nam Cao Subject: [PATCH v11 16/21] rv: Add rtapp container monitor Date: Fri, 4 Jul 2025 15:20:08 +0200 Message-Id: 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 --- v11: Remove the incorrect note that this patch has performance impact (that comes later) --- kernel/trace/rv/Kconfig | 1 + kernel/trace/rv/Makefile | 1 + kernel/trace/rv/monitors/rtapp/Kconfig | 10 ++++++++ kernel/trace/rv/monitors/rtapp/rtapp.c | 33 ++++++++++++++++++++++++++ kernel/trace/rv/monitors/rtapp/rtapp.h | 3 +++ 5 files changed, 48 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..b7415c3570bb --- /dev/null +++ b/kernel/trace/rv/monitors/rtapp/Kconfig @@ -0,0 +1,10 @@ +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. 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