From nobody Mon Oct 6 15:12:22 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 5CC6E2264AD; Sun, 20 Jul 2025 17:17:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753031823; cv=none; b=dP8gPxO3gFElFLjWLOhrj01tB3XVvNdnvsTeG/fp5PBfI14ZWxy3WZGZFvP8bpzDlugQ4OERSBsgVGcbLfytdI3LcwDEALn8LWxvCoyGthuE2wBsb1cQ6pEtOQ6rmZhChpTbwksGYizRHI/mnPZlCXdd7GQ3KgDnygEG8Mo1t0E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753031823; c=relaxed/simple; bh=XSthd9dlhJIV6ssLC4htorYpexWz5dqyUITsYAj+758=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Ri+2eqVMhbfBSOmGFppw8YA87OHHnpy/A294UpH9u2BCc31c1KitI3BMYEoOezSZWkQ4scmbMu4TfZsF/ITX4Ys20LR3D+9RtypliTWXQo5UN8Rh8LlBhJFMWru5aWBYgyXJEtyn0wXn63olzi+x6W6thyQ7DcljNnSugf5tZks= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=UidaZlLp; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="UidaZlLp" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 16DD4C4CEFA; Sun, 20 Jul 2025 17:17:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1753031823; bh=XSthd9dlhJIV6ssLC4htorYpexWz5dqyUITsYAj+758=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UidaZlLpAzxjA5v4RJcPbgi8JyTetTkgF1Gu4yNcVvzQTFtrqVCxriwR7VA8wIAwn jFcaxzpuLy6oPpi6vvRKyxuneu69NtlaDdp6lL7awJhA88N3AWcsFskM40emcbh3HQ p8w+vRb0QVUjHrgTU5RuXbwif1saOfXbvrYahk+poJoPkoY5N3GbuZ/VSnyCf/9OLB 2tGiUrJoN3AvGh97FJ2UYxUWERjQ3ACGpbdZbzCV18y0SRox0fBXWVIQs5TlIKaH7S g348XUe2X19eJfw988sb41pj0YSnOVDJz4dWhd9c+YCgQTyKyaFvOS0LphfQn9mN+c uUzFeulNteHCw== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , Shuah Khan , damon@lists.linux.dev, kernel-team@meta.com, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 06/22] selftests/damon/_damon_sysfs: support DAMOS action dests setup Date: Sun, 20 Jul 2025 10:16:36 -0700 Message-Id: <20250720171652.92309-7-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250720171652.92309-1-sj@kernel.org> References: <20250720171652.92309-1-sj@kernel.org> 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" _damon_sysfs.py contains code for test-purpose DAMON sysfs interface control. Add support of DAMOS action destinations setup for more tests. Signed-off-by: SeongJae Park --- tools/testing/selftests/damon/_damon_sysfs.py | 56 ++++++++++++++++++- 1 file changed, 55 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/damon/_damon_sysfs.py b/tools/testing/= selftests/damon/_damon_sysfs.py index 23de9202b4e3..2d95ab564885 100644 --- a/tools/testing/selftests/damon/_damon_sysfs.py +++ b/tools/testing/selftests/damon/_damon_sysfs.py @@ -319,6 +319,52 @@ class DamosFilters: return err return None =20 +class DamosDest: + id =3D None + weight =3D None + idx =3D None + dests =3D None # owner dests + + def __init__(self, id=3D0, weight=3D0): + self.id =3D id + self.weight =3D weight + + def sysfs_dir(self): + return os.path.join(self.dests.sysfs_dir(), '%d' % self.idx) + + def stage(self): + err =3D write_file(os.path.join(self.sysfs_dir(), 'id'), self.id) + if err is not None: + return err + err =3D write_file(os.path.join(self.sysfs_dir(), 'weight'), self.= weight) + if err is not None: + return err + return None + +class DamosDests: + dests =3D None + scheme =3D None # owner scheme + + def __init__(self, dests=3D[]): + self.dests =3D dests + for idx, dest in enumerate(self.dests): + dest.idx =3D idx + dest.dests =3D self + + def sysfs_dir(self): + return os.path.join(self.scheme.sysfs_dir(), 'dests') + + def stage(self): + err =3D write_file(os.path.join(self.sysfs_dir(), 'nr_dests'), + len(self.dests)) + if err is not None: + return err + for dest in self.dests: + err =3D dest.stage() + if err is not None: + return err + return None + class DamosStats: nr_tried =3D None sz_tried =3D None @@ -349,6 +395,7 @@ class Damos: ops_filters =3D None filters =3D None apply_interval_us =3D None + dests =3D None idx =3D None context =3D None tried_bytes =3D None @@ -358,7 +405,7 @@ class Damos: def __init__(self, action=3D'stat', access_pattern=3DDamosAccessPatter= n(), quota=3DDamosQuota(), watermarks=3DDamosWatermarks(), core_filters=3D[], ops_filters=3D[], filters=3D[], - apply_interval_us=3D0): + dests=3DDamosDests(), apply_interval_us=3D0): self.action =3D action self.access_pattern =3D access_pattern self.access_pattern.scheme =3D self @@ -376,6 +423,9 @@ class Damos: self.filters =3D DamosFilters(name=3D'filters', filters=3Dfilters) self.filters.scheme =3D self =20 + self.dests =3D dests + self.dests.scheme =3D self + self.apply_interval_us =3D apply_interval_us =20 def sysfs_dir(self): @@ -412,6 +462,10 @@ class Damos: if err is not None: return err =20 + err =3D self.dests.stage() + if err is not None: + return err + class DamonTarget: pid =3D None # todo: Support target regions if test is made --=20 2.39.5