From nobody Sun Oct 5 05:26:33 2025 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0BE2329E0F7 for ; Sat, 9 Aug 2025 13:52:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.13 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754747540; cv=none; b=EjjHWbl1Em+qtP3RwOmuI9shql5mFLojysVypz6UZXAP2nheYyV2rwPlKIxw6lmVPN6Q7iAau/IA0//dUd3m/xZQmZSWteXgCbHgJMTled8GNtWmla+g+lunK/YLdWfGpq7Ck5rW7hzC8LIjyHm4M41K5xB7rcZ7OymFeZHsMCI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754747540; c=relaxed/simple; bh=F1Va4a7oL3sStdI3GcwWNaFyPom4HkNAVRRrhM+iPZs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=tNH8DXUc25PfdXYJik26rNJjYp8KIgMGKPp8FQ3FO4u0i/MSj4pUhWVQIeL7/E55hLanxBTdF9dQBw2FsE/Vriy1noY/L7Q1ufdKILDEMrb2ViRYAS0ZMXqK5f3KBUQd8EKKMYjIJZEQCtrf5jUeP/faPgN7Vn83Mk7EoXFTNpM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=ZKrliwjS; arc=none smtp.client-ip=198.175.65.13 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="ZKrliwjS" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1754747539; x=1786283539; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=F1Va4a7oL3sStdI3GcwWNaFyPom4HkNAVRRrhM+iPZs=; b=ZKrliwjSMqhQXrECsMFuVhRW05yTv0n1j62GSsC31hnzIPF83h6fiHzK weDaZ1/MdIsFxHVVEFlztTPmgJG3oWvAxLQ1zCEubugYbV9Ifi2eMqlWs 0TKsTw/9OmJmRD9nlM/aQo5B/Q7+VnjqXP8C3CPzgDMtYn+R9b8+dtvOW NsnP9EX2Sxa4L4lLBdCPSYilxVkGJxk6eyg/mfaXknlpQ7e/G5sEqECRa V3FWCWcJGxMfEC3/YSAul2qkqxQwQip3tHa9v/Z606nizFxlpzF08CBdZ vSGGnoYZx57Ls8Cz7wLdL65YVGUBXTbZo2QmojcwFJNyTqpUdzppS2X9E A==; X-CSE-ConnectionGUID: fXqnPmCcTvysuxu0YXJBVQ== X-CSE-MsgGUID: LMmHp4WmSquGGDtubSr9Kg== X-IronPort-AV: E=McAfee;i="6800,10657,11515"; a="68153563" X-IronPort-AV: E=Sophos;i="6.17,278,1747724400"; d="scan'208";a="68153563" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Aug 2025 06:52:19 -0700 X-CSE-ConnectionGUID: S6yn9jfERgeI3j+fOzlZuw== X-CSE-MsgGUID: jliW7cJOStiKkBK0r/YuOQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.17,278,1747724400"; d="scan'208";a="165903758" Received: from smoticic-mobl1.ger.corp.intel.com (HELO fedora) ([10.245.244.28]) by fmviesa009-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Aug 2025 06:52:16 -0700 From: =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= To: intel-xe@lists.freedesktop.org Cc: Matthew Brost , =?UTF-8?q?Christian=20K=C3=B6nig?= , dri-devel@lists.freedesktop.org, Jason Gunthorpe , Andrew Morton , Simona Vetter , Dave Airlie , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH 3/6] drm/gpusvm: Add drm_gpusvm_in_notifier_* helpers Date: Sat, 9 Aug 2025 15:51:34 +0200 Message-ID: <20250809135137.259427-4-thomas.hellstrom@linux.intel.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250809135137.259427-1-thomas.hellstrom@linux.intel.com> References: <20250809135137.259427-1-thomas.hellstrom@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Matthew Brost Abstract drm_gpusvm_in_notifier_lock/unlock with helpers. Intended usage is a client side 2nd pass of a MMU notifier. Signed-off-by: Matthew Brost --- include/drm/drm_gpusvm.h | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) diff --git a/include/drm/drm_gpusvm.h b/include/drm/drm_gpusvm.h index 8b5e159857fc..4bdbe10685cf 100644 --- a/include/drm/drm_gpusvm.h +++ b/include/drm/drm_gpusvm.h @@ -313,7 +313,7 @@ void drm_gpusvm_range_set_unmapped(struct drm_gpusvm_ra= nge *range, #endif =20 /** - * drm_gpusvm_notifier_lock() - Lock GPU SVM notifier + * drm_gpusvm_notifier_lock() - Lock GPU SVM notifier, client side * @gpusvm__: Pointer to the GPU SVM structure. * * Abstract client usage GPU SVM notifier lock, take lock @@ -322,7 +322,7 @@ void drm_gpusvm_range_set_unmapped(struct drm_gpusvm_ra= nge *range, down_read(&(gpusvm__)->notifier_lock) =20 /** - * drm_gpusvm_notifier_unlock() - Unlock GPU SVM notifier + * drm_gpusvm_notifier_unlock() - Unlock GPU SVM notifier, client side * @gpusvm__: Pointer to the GPU SVM structure. * * Abstract client usage GPU SVM notifier lock, drop lock @@ -330,6 +330,24 @@ void drm_gpusvm_range_set_unmapped(struct drm_gpusvm_r= ange *range, #define drm_gpusvm_notifier_unlock(gpusvm__) \ up_read(&(gpusvm__)->notifier_lock) =20 +/** + * drm_gpusvm_in_notifier_lock() - Lock GPU SVM notifier, in notifier + * @gpusvm__: Pointer to the GPU SVM structure. + * + * Abstract in notifier (2nd pass) usage GPU SVM notifier lock, take lock + */ +#define drm_gpusvm_in_notifier_lock(gpusvm__) \ + down_write(&(gpusvm__)->notifier_lock) + +/** + * drm_gpusvm_in_notifier_unlock() - Unlock GPU SVM notifier, in notifier + * @gpusvm__: Pointer to the GPU SVM structure. + * + * Abstract in notifier (2nd pass) GPU SVM notifier lock, drop lock + */ +#define drm_gpusvm_in_notifier_unlock(gpusvm__) \ + up_write(&(gpusvm__)->notifier_lock) + /** * drm_gpusvm_range_start() - GPU SVM range start address * @range: Pointer to the GPU SVM range --=20 2.50.1