From patchwork Thu Jul 29 08:16:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kasireddy, Vivek" X-Patchwork-Id: 12408095 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EFEFCC4338F for ; Thu, 29 Jul 2021 08:30:09 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id A9B5D60D07 for ; Thu, 29 Jul 2021 08:30:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org A9B5D60D07 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 043006ECE0; Thu, 29 Jul 2021 08:30:08 +0000 (UTC) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3E3656ECE8 for ; Thu, 29 Jul 2021 08:29:51 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10059"; a="276612149" X-IronPort-AV: E=Sophos;i="5.84,278,1620716400"; d="scan'208";a="276612149" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jul 2021 01:29:50 -0700 X-IronPort-AV: E=Sophos;i="5.84,278,1620716400"; d="scan'208";a="507013882" Received: from vkasired-desk2.fm.intel.com ([10.105.128.127]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jul 2021 01:29:50 -0700 From: Vivek Kasireddy To: dri-devel@lists.freedesktop.org Subject: [RFC v1 2/4] virtio-gpu uapi: Add VIRTIO_GPU_F_OUT_FENCE feature Date: Thu, 29 Jul 2021 01:16:57 -0700 Message-Id: <20210729081659.2255499-3-vivek.kasireddy@intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210729081659.2255499-1-vivek.kasireddy@intel.com> References: <20210729081659.2255499-1-vivek.kasireddy@intel.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Vivek Kasireddy , Gerd Hoffmann Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" This feature enables the Guest to wait to know when a resource is completely consumed by the Host. Cc: Gerd Hoffmann Signed-off-by: Vivek Kasireddy --- include/uapi/linux/virtio_gpu.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/uapi/linux/virtio_gpu.h b/include/uapi/linux/virtio_gpu.h index 97523a95781d..0526157905b5 100644 --- a/include/uapi/linux/virtio_gpu.h +++ b/include/uapi/linux/virtio_gpu.h @@ -60,6 +60,11 @@ */ #define VIRTIO_GPU_F_RESOURCE_BLOB 3 +/* + * VIRTIO_GPU_CMD_RESOURCE_OUT_FENCE + */ +#define VIRTIO_GPU_F_OUT_FENCE 4 + enum virtio_gpu_ctrl_type { VIRTIO_GPU_UNDEFINED = 0, @@ -78,6 +83,7 @@ enum virtio_gpu_ctrl_type { VIRTIO_GPU_CMD_RESOURCE_ASSIGN_UUID, VIRTIO_GPU_CMD_RESOURCE_CREATE_BLOB, VIRTIO_GPU_CMD_SET_SCANOUT_BLOB, + VIRTIO_GPU_CMD_RESOURCE_OUT_FENCE, /* 3d commands */ VIRTIO_GPU_CMD_CTX_CREATE = 0x0200, @@ -441,4 +447,10 @@ struct virtio_gpu_resource_unmap_blob { __le32 padding; }; +/* VIRTIO_GPU_CMD_RESOURCE_OUT_FENCE */ +struct virtio_gpu_resource_out_fence { + struct virtio_gpu_ctrl_hdr hdr; + __le32 resource_id; +}; + #endif