From mboxrd@z Thu Jan 1 00:00:00 1970 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7493BC624DE for ; Fri, 4 Sep 2026 12:21:42 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1DC2C10E132; Fri, 4 Sep 2026 12:21:42 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="lsQki9eN"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8C82C10E132 for ; Fri, 4 Sep 2026 12:21:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1788524501; x=1820060501; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=Sa0CqvuyQTZNOYX7jb4AygaCxWU3mdIY5ZIVHAHHOBk=; b=lsQki9eNBuedhQa/9mw7Gk++9YnLOnFThigLZgxBkVsBQdbDzgJZVHYN YyWUJ2cBalewVlk7wG5seZ71GhZ79FPmncQxYFS4elLIu2boQ8711DAkk S+s5gMllrYZZfnGIxYvd/KpUAVmEBeZTM3oY+H6tBzo47i5BRDP9QdIdp DJpr4WC60Sr4AjD92HzUlcshqT4ZUEahlQ2Y86d4uKxpgujsCS21gyJ3q 9UmypkPEdAALKef9RBTEyS/glCq4/gIJDVe3VY9PJfZcQavvvS55mINNW e1rUkSyv+6/a6Sj+B0dYLIpPXAil+dKoGzXbddW499YlMM4jX0GNsntSe w==; X-CSE-ConnectionGUID: ohkOhCMZQKSmAd5H5LmjRw== X-CSE-MsgGUID: KiRhQ3dSRTmJWGAv/M8dyA== X-IronPort-AV: E=McAfee;i="6800,10657,11895"; a="106393786" X-IronPort-AV: E=Sophos;i="6.25,262,1779174000"; d="scan'208";a="106393786" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Sep 2026 05:21:40 -0700 X-CSE-ConnectionGUID: wDWtwv7UTC6sUvZDRIAfTg== X-CSE-MsgGUID: TtwukFMwR5qKRZ1eX4hnFw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,262,1779174000"; d="scan'208";a="273551862" Received: from tejasupa-desk.iind.intel.com (HELO tejasupa-desk) ([10.190.239.37]) by ORVIESA003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Sep 2026 05:21:40 -0700 From: Tejas Upadhyay To: intel-xe@lists.freedesktop.org Cc: himal.prasad.ghimiray@intel.com, Matthew Brost , Tejas Upadhyay Subject: [PATCH] drm/xe: Skip clearing purged page-table BOs Date: Fri, 4 Sep 2026 17:51:22 +0530 Message-ID: <20260904122121.806122-2-tejas.upadhyay@intel.com> X-Mailer: git-send-email 2.52.0 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-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" VRAM page offlining can clear a page-table BO's vmap before VM teardown calls xe_pt_clear(). Check for a purged BO under its dma-resv lock before writing to the mapping. Signed-off-by: Tejas Upadhyay --- drivers/gpu/drm/xe/xe_pt.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_pt.c b/drivers/gpu/drm/xe/xe_pt.c index 5d990c1c3740..23bc74ba02cb 100644 --- a/drivers/gpu/drm/xe/xe_pt.c +++ b/drivers/gpu/drm/xe/xe_pt.c @@ -236,9 +236,12 @@ void xe_pt_destroy(struct xe_pt *pt, u32 flags, struct llist_head *deferred) */ void xe_pt_clear(struct xe_device *xe, struct xe_pt *pt) { - struct iosys_map *map = &pt->bo->vmap; + struct xe_bo *bo = pt->bo; - xe_map_memset(xe, map, 0, 0, SZ_4K); + xe_bo_lock(bo, false); + if (!xe_bo_is_purged(bo)) + xe_map_memset(xe, &bo->vmap, 0, 0, SZ_4K); + xe_bo_unlock(bo); } /** -- 2.52.0