From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DEB8C606A31A for ; Wed, 21 Oct 2026 04:14:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=katVO2kT Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8778D10EC4C; Wed, 21 Oct 2026 04:13:57 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.16]) by gabe.freedesktop.org (Postfix) with ESMTPS id D256310E2E4 for ; Wed, 21 Oct 2026 04:13:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1792556030; x=1824092030; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=HdOZxjkilMvNSSC0EiKqZ9+pVFlHnMTiyL6+FGrNRaM=; b=katVO2kTpnDQ8zjCXCfw1UhIG12pN4QTL1AaizGYzHC7HSzS0euT5KAd n0VEdDW7CV5qUeNzwVBef2Mdfq9hx7gS7cMu2965ROJoED9kgAQEEpN63 eocdzywcucHfWJfAKbWOE36+LRKQUfPlq8thtkrsOprPfl0DOcV2wjRUk 2kWRYEVlEEmGYpYo8xN1RvBrs6BrHri6gPDs/WZQ2xBf/dHM9B3gF6gYI PRPEmhlQEOQBF3c/2HRB2o2VLCxUxF6B5eADI1WXfUFiBHFuvB9HTYndO U0clJ+CYZJjLtI1XaEkkHGCnOPbmSwtSkIB8bXxsyZbTdEF3stce0S8xR g==; X-CSE-ConnectionGUID: h/Z/qLWoRDCPjrRHJ3KeMA== X-CSE-MsgGUID: i3pFP3hZRRqcSPXbsP/hJQ== X-IronPort-AV: E=McAfee;i="6800,10657,11941"; a="1264310" X-IronPort-AV: E=Sophos;i="6.27,169,1787036400"; d="scan'208";a="1264310" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by orvoesa108.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Oct 2026 21:13:50 -0700 X-CSE-ConnectionGUID: fpEi++eUQoS2J84fIzcUFA== X-CSE-MsgGUID: vMoWOgheSuqJp319iH1TNg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,169,1787036400"; d="scan'208";a="2868686" Received: from gfx-coremm-kmd15.iind.intel.com ([10.223.55.8]) by orviesa008.jf.intel.com with ESMTP; 20 Oct 2026 21:13:49 -0700 From: Nareshkumar Gollakoti To: intel-xe@lists.freedesktop.org Cc: himal.prasad.ghimiray@intel.com, Nareshkumar Gollakoti Subject: [PATCH 1/6] drm/xe/pci: log ATS/PASID enablement state at probe Date: Wed, 21 Oct 2026 09:41:12 +0530 Message-ID: <20261021041117.1774877-2-naresh.kumar.g@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20261021041117.1774877-1-naresh.kumar.g@intel.com> References: <20261021041117.1774877-1-naresh.kumar.g@intel.com> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Intel-xe" X-Spam-Status: No, score=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Add debug logging in xe_pci_probe() for ATS and PASID enablement state when the corresponding capabilities are present. This makes platform and IOMMU related bring up issues easier to diagnose. Also add a small helper to report weather ATS and PASID are both enabled, for use follow up checks that depend on both features. Signed-off-by: Nareshkumar Gollakoti --- drivers/gpu/drm/xe/xe_pci.c | 7 +++++++ drivers/gpu/drm/xe/xe_pci.h | 6 ++++++ 2 files changed, 13 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_pci.c b/drivers/gpu/drm/xe/xe_pci.c index e44b74b9aa27..40c0f4c42ed3 100644 --- a/drivers/gpu/drm/xe/xe_pci.c +++ b/drivers/gpu/drm/xe/xe_pci.c @@ -1275,6 +1275,13 @@ static int __xe_pci_probe(struct pci_dev *pdev, const struct xe_device_desc *des xe_step_name(xe->info.step.media), xe_step_name(xe->info.step.basedie)); + if (pdev->ats_cap) + drm_dbg(&xe->drm, "Arch ATS = %s", + str_enabled_disabled(pdev->ats_enabled)); + if (pdev->pasid_cap) + drm_dbg(&xe->drm, "Arch PASID = %s", + str_enabled_disabled(pdev->pasid_enabled)); + drm_dbg(&xe->drm, "SR-IOV support: %s (mode: %s)\n", str_yes_no(xe_device_has_sriov(xe)), xe_sriov_mode_to_string(xe_device_sriov_mode(xe))); diff --git a/drivers/gpu/drm/xe/xe_pci.h b/drivers/gpu/drm/xe/xe_pci.h index 11bcc5fe2c5b..5f784229a5ec 100644 --- a/drivers/gpu/drm/xe/xe_pci.h +++ b/drivers/gpu/drm/xe/xe_pci.h @@ -5,6 +5,7 @@ #ifndef _XE_PCI_H_ #define _XE_PCI_H_ +#include struct pci_dev; @@ -12,4 +13,9 @@ int xe_register_pci_driver(void); void xe_unregister_pci_driver(void); struct xe_device *xe_pci_to_pf_device(struct pci_dev *pdev); +static inline bool xe_pci_ats_pasid_enabled(struct pci_dev *pdev) +{ + return pdev->ats_enabled && pdev->pasid_enabled; +} + #endif -- 2.43.0