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 947331048938 for ; Sat, 28 Feb 2026 01:35:34 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3B18C10EC68; Sat, 28 Feb 2026 01:35:34 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="jjb1xqC+"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.11]) by gabe.freedesktop.org (Postfix) with ESMTPS id 71D0310E1E1 for ; Sat, 28 Feb 2026 01:35:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1772242509; x=1803778509; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=YPurCGIaC2OSihBUwNqPohl/AIdcAzRlrmzlUAptUEU=; b=jjb1xqC+YstJz57J97+ocexbyjElWVifNd0IbwdjT0PA4qHjY1bMuxDF Sw3tzuiG/uzqAvUwgeSA7fgKrjwLTkmE3fiNrhYgMMlw5e7vhCJTw7urJ DqI0truvdUTm4w+0qtooBEsRdHkQFkPkdGuptoe8iI8QbLpAIGOkB9mkl gnI2z8eyk8fDMRh+BD9wFC3aNNqwdiUeXinbhv9d1qb19ZO5fC3aATgex +qVnFLtNRd+oErQvjg4fbrVTGcWMqeb2r5/7uywU21yl4HQjJe1mIhjRY 23Lsn5YW3Rcue/1f14yzW2BTXgKcFsof9sRe41enOXBIbOlOp4ku/Mvii w==; X-CSE-ConnectionGUID: 18tZah/XQf6WJQK+Pfa3Qw== X-CSE-MsgGUID: zpuuTFdyRI+9TVTJxOaing== X-IronPort-AV: E=McAfee;i="6800,10657,11714"; a="83966345" X-IronPort-AV: E=Sophos;i="6.21,315,1763452800"; d="scan'208";a="83966345" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Feb 2026 17:35:06 -0800 X-CSE-ConnectionGUID: x3GLf/ooRtWmQRbuSFaHrA== X-CSE-MsgGUID: 2MqyPis7SPObdu6ff1bFQw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,315,1763452800"; d="scan'208";a="213854851" Received: from lstrano-desk.jf.intel.com ([10.54.39.91]) by fmviesa009-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Feb 2026 17:35:07 -0800 From: Matthew Brost To: intel-xe@lists.freedesktop.org Cc: stuart.summers@intel.com, arvind.yadav@intel.com, himal.prasad.ghimiray@intel.com, thomas.hellstrom@linux.intel.com, francois.dugast@intel.com Subject: [PATCH v3 06/25] drm/xe: Add XE_BO_FLAG_PUT_VM_ASYNC Date: Fri, 27 Feb 2026 17:34:42 -0800 Message-Id: <20260228013501.106680-7-matthew.brost@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260228013501.106680-1-matthew.brost@intel.com> References: <20260228013501.106680-1-matthew.brost@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 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" Add XE_BO_FLAG_PUT_VM_ASYNC, which indicates that an async BO put must also drop an additional reference to the BO’s VM. This is useful when a kernel BO, one that does not normally hold a VM reference, needs to be put asynchronously, ensuring the shared dma-resv object does not disappear before the BO. Signed-off-by: Matthew Brost --- drivers/gpu/drm/xe/xe_bo.c | 8 +++++++- drivers/gpu/drm/xe/xe_bo.h | 1 + 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/xe/xe_bo.c b/drivers/gpu/drm/xe/xe_bo.c index 8ff193600443..d4c8ef8ff2c3 100644 --- a/drivers/gpu/drm/xe/xe_bo.c +++ b/drivers/gpu/drm/xe/xe_bo.c @@ -3567,8 +3567,14 @@ void xe_bo_put_commit(struct llist_head *deferred) if (!freed) return; - llist_for_each_entry_safe(bo, next, freed, freed) + llist_for_each_entry_safe(bo, next, freed, freed) { + struct xe_vm *vm = bo->vm; + bool async = bo->flags & XE_BO_FLAG_PUT_VM_ASYNC; + drm_gem_object_free(&bo->ttm.base.refcount); + if (async) + xe_vm_put(vm); + } } static void xe_bo_dev_work_func(struct work_struct *work) diff --git a/drivers/gpu/drm/xe/xe_bo.h b/drivers/gpu/drm/xe/xe_bo.h index bf284ed47325..14be9c1bb09d 100644 --- a/drivers/gpu/drm/xe/xe_bo.h +++ b/drivers/gpu/drm/xe/xe_bo.h @@ -52,6 +52,7 @@ #define XE_BO_FLAG_CPU_ADDR_MIRROR BIT(24) #define XE_BO_FLAG_FORCE_USER_VRAM BIT(25) #define XE_BO_FLAG_NO_COMPRESSION BIT(26) +#define XE_BO_FLAG_PUT_VM_ASYNC BIT(27) /* this one is trigger internally only */ #define XE_BO_FLAG_INTERNAL_TEST BIT(30) -- 2.34.1