From nobody Sat Apr 11 21:29:17 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BD0D6C19F2D for ; Sat, 6 Aug 2022 12:29:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231894AbiHFM3N (ORCPT ); Sat, 6 Aug 2022 08:29:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44854 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232530AbiHFM2a (ORCPT ); Sat, 6 Aug 2022 08:28:30 -0400 Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 20470140B7 for ; Sat, 6 Aug 2022 05:27:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1659788879; x=1691324879; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Y3u5jOC8IeJ7utNu1Njm1hJr+jiF8NSG7COHmwHCdaQ=; b=SVyQ6gFsMxP5Dnq/ppvfQ+PeLOLcsjf4gz2jEC4XMV2WQErPjiyHJimQ AotaCPUJNtBuRIbSrWkXcfbu9bEU2upnsLdVNEJhd+YVT317iwB4fV+pA Tb1wJ3DAHchHJP3uAdjc4QpszN3rLAhq4Uv7sMFJOKbuy9UzzwF6bm7qz iLfoTAzZDOr0GqlR/ArjqJ3c7qNkHxnzXF5137yhaQ/NjhQOIpnRj3cEj DmSKZvd1b0b4VisF7xkUblPRIDj66PE7oDjy+LOCGw9vm2cvrAE7fOOhT icTY4nXNiT4QmszKZz0EmeIvVAbFDb3o4QAgOvr1sLWOJqFKu2CxQibrt A==; X-IronPort-AV: E=McAfee;i="6400,9594,10430"; a="289121916" X-IronPort-AV: E=Sophos;i="5.93,217,1654585200"; d="scan'208";a="289121916" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Aug 2022 05:27:58 -0700 X-IronPort-AV: E=Sophos;i="5.93,217,1654585200"; d="scan'208";a="632329145" Received: from twinkler-lnx.jer.intel.com ([10.12.87.143]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Aug 2022 05:27:54 -0700 From: Tomas Winkler To: Greg Kroah-Hartman , David Airlie , Daniel Vetter Cc: Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, Tomas Winkler , Alexander Usyskin , Vitaly Lubart Subject: [PATCH v7 13/15] mei: debugfs: add pxp mode to devstate in debugfs Date: Sat, 6 Aug 2022 15:26:34 +0300 Message-Id: <20220806122636.43068-14-tomas.winkler@intel.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20220806122636.43068-1-tomas.winkler@intel.com> References: <20220806122636.43068-1-tomas.winkler@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add pxp mode devstate to debugfs to monitor pxp state machine progress. This is useful to debug issues in scenarios in which the pxp state needs to be re-initialized, like during power transitions such as suspend/resume. With this debugfs the state could be monitored to ensure that pxp is in the ready state. CC: Vitaly Lubart Signed-off-by: Tomas Winkler Signed-off-by: Alexander Usyskin Reviewed-by: Daniele Ceraolo Spurio --- drivers/misc/mei/debugfs.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/misc/mei/debugfs.c b/drivers/misc/mei/debugfs.c index 1ce61e9e24fc..4074fec866a6 100644 --- a/drivers/misc/mei/debugfs.c +++ b/drivers/misc/mei/debugfs.c @@ -86,6 +86,20 @@ static int mei_dbgfs_active_show(struct seq_file *m, voi= d *unused) } DEFINE_SHOW_ATTRIBUTE(mei_dbgfs_active); =20 +static const char *mei_dev_pxp_mode_str(enum mei_dev_pxp_mode state) +{ +#define MEI_PXP_MODE(state) case MEI_DEV_PXP_##state: return #state + switch (state) { + MEI_PXP_MODE(DEFAULT); + MEI_PXP_MODE(INIT); + MEI_PXP_MODE(SETUP); + MEI_PXP_MODE(READY); + default: + return "unknown"; + } +#undef MEI_PXP_MODE +} + static int mei_dbgfs_devstate_show(struct seq_file *m, void *unused) { struct mei_device *dev =3D m->private; @@ -112,6 +126,9 @@ static int mei_dbgfs_devstate_show(struct seq_file *m, = void *unused) seq_printf(m, "pg: %s, %s\n", mei_pg_is_enabled(dev) ? "ENABLED" : "DISABLED", mei_pg_state_str(mei_pg_state(dev))); + + seq_printf(m, "pxp: %s\n", mei_dev_pxp_mode_str(dev->pxp_mode)); + return 0; } DEFINE_SHOW_ATTRIBUTE(mei_dbgfs_devstate); --=20 2.37.1