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Fri, 3 May 2019 11:19:33 +0000 Received: from AM0PR04MB6434.eurprd04.prod.outlook.com ([fe80::19be:75a:9fe:7cec]) by AM0PR04MB6434.eurprd04.prod.outlook.com ([fe80::19be:75a:9fe:7cec%7]) with mapi id 15.20.1856.008; Fri, 3 May 2019 11:19:33 +0000 From: Leonard Crestez To: Stephen Boyd , Kieran Bingham , Jan Kiszka CC: Andrew Morton , Michael Turquette , "linux-clk@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: [PATCH 2/2] scripts/gdb: Print cached rate in lx-clk-summary Thread-Topic: [PATCH 2/2] scripts/gdb: Print cached rate in lx-clk-summary Thread-Index: AQHVAaIU9Nxde2bkokKBi3IR8Q3yGA== Date: Fri, 3 May 2019 11:19:32 +0000 Message-ID: <1a474318982a5f0125f2360c4161029b17f56bd1.1556881728.git.leonard.crestez@nxp.com> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [89.37.124.34] x-mailer: git-send-email 2.17.1 x-clientproxiedby: VE1PR08CA0027.eurprd08.prod.outlook.com (2603:10a6:803:104::40) To AM0PR04MB6434.eurprd04.prod.outlook.com (2603:10a6:208:16c::23) authentication-results: spf=none (sender IP is ) smtp.mailfrom=leonard.crestez@nxp.com; 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received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: Iy7DgfnWmbFL2dilMP003aDmGHw19S+1WapC9v6qY1k88iwv2rqHE4S2xjmVqfBlf3INl5fGqIPJuEbNKVFwS1DAkdhWrZ70yH9SoWXZpMOQ4qJU4Eo/MAnRF0b3XBYKRDjfJ4l7plF5xoLgrnTx8J57ie0eKra2U9g+20luSlw5tWGs4seJ8QaAHcDxPGLoayR7YQUWzRb00+rdHwkiyANCHyI7uszGI09OieiWvsQ4My9Louj4cyOksL/I+nkxSF1aMAXcjxN9auqihon9pmCyjs9mJr2P1ip4GIrPLOF62E55L+/adteuTZZBtQzT/O/5spSFYKIgFHZTgdO8eHiIotpRd113v9Ffb6jTp9udbNQjPRq+Z2JBVVjklwbHsllh8mh++qVb4eAl+L3R2CtD7DCFoY2M3XMuJy8rBHg= MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: c5856d9b-2cd5-4a83-3de3-08d6cfb9372d X-MS-Exchange-CrossTenant-originalarrivaltime: 03 May 2019 11:19:32.4503 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR04MB5859 Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The clk rate is always stored in clk_core but might be out of date and require calls to update from hardware. Deal with that case by printing a (c) suffix. Signed-off-by: Leonard Crestez --- scripts/gdb/linux/clk.py | 21 ++++++++++++++------- scripts/gdb/linux/constants.py.in | 4 ++++ 2 files changed, 18 insertions(+), 7 deletions(-) diff --git a/scripts/gdb/linux/clk.py b/scripts/gdb/linux/clk.py index 6bf71976b55d..061aecfa294e 100644 --- a/scripts/gdb/linux/clk.py +++ b/scripts/gdb/linux/clk.py @@ -3,42 +3,49 @@ # Copyright (c) NXP 2019 import gdb import sys -from linux import utils, lists +from linux import utils, lists, constants clk_core_type = utils.CachedType("struct clk_core") def clk_core_for_each_child(hlist_head): return lists.hlist_for_each_entry(hlist_head, clk_core_type.get_type().pointer(), "child_node") class LxClkSummary(gdb.Command): - """Print Linux kernel log buffer.""" + """Print clk tree summary + +Output is a subset of /sys/kernel/debug/clk/clk_summary + +No calls are made during printing, instead a (c) if printed after values which +are cached and potentially out of date""" def __init__(self): super(LxClkSummary, self).__init__("lx-clk-summary", gdb.COMMAND_DATA) def show_subtree(self, clk, level): - gdb.write("%*s%-*s %7d %8d %8d\n" % ( + gdb.write("%*s%-*s %7d %8d %8d %11lu%s\n" % ( level * 3 + 1, "", 30 - level * 3, clk['name'].string(), clk['enable_count'], clk['prepare_count'], - clk['protect_count'])) + clk['protect_count'], + clk['rate'], + '(c)' if clk['flags'] & constants.LX_CLK_GET_RATE_NOCACHE else ' ')) for child in clk_core_for_each_child(clk['children']): self.show_subtree(child, level + 1) def invoke(self, arg, from_tty): - gdb.write(" enable prepare protect\n") - gdb.write(" clock count count count\n") - gdb.write("---------------------------------------------------------\n") + gdb.write(" enable prepare protect \n") + gdb.write(" clock count count count rate \n") + gdb.write("------------------------------------------------------------------------\n") for clk in clk_core_for_each_child(gdb.parse_and_eval("clk_root_list")): self.show_subtree(clk, 0) for clk in clk_core_for_each_child(gdb.parse_and_eval("clk_orphan_list")): self.show_subtree(clk, 0) diff --git a/scripts/gdb/linux/constants.py.in b/scripts/gdb/linux/constants.py.in index 76f46f427b96..1d73083da6cb 100644 --- a/scripts/gdb/linux/constants.py.in +++ b/scripts/gdb/linux/constants.py.in @@ -10,10 +10,11 @@ * * This work is licensed under the terms of the GNU GPL version 2. * */ +#include #include #include #include #include #include @@ -36,10 +37,13 @@ /* The build system will take care of deleting everything above this marker */ import gdb +/* linux/clk-provider.h */ +LX_GDBPARSED(CLK_GET_RATE_NOCACHE) + /* linux/fs.h */ LX_VALUE(SB_RDONLY) LX_VALUE(SB_SYNCHRONOUS) LX_VALUE(SB_MANDLOCK) LX_VALUE(SB_DIRSYNC)