From patchwork Tue Oct 30 06:32:05 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 10660491 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 58B5513BF for ; Tue, 30 Oct 2018 06:32:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 46E1729A13 for ; Tue, 30 Oct 2018 06:32:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3AE0D29A19; Tue, 30 Oct 2018 06:32:18 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id EAE2029A13 for ; Tue, 30 Oct 2018 06:32:17 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 57DAD6E1A2; Tue, 30 Oct 2018 06:32:15 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by gabe.freedesktop.org (Postfix) with ESMTPS id AE3856E19F for ; Tue, 30 Oct 2018 06:32:13 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 406F6307D85B; Tue, 30 Oct 2018 06:32:13 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-116-158.ams2.redhat.com [10.36.116.158]) by smtp.corp.redhat.com (Postfix) with ESMTP id 73AC81974E; Tue, 30 Oct 2018 06:32:07 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 993A616444F; Tue, 30 Oct 2018 07:32:06 +0100 (CET) From: Gerd Hoffmann To: virtio-dev@lists.oasis-open.org, dri-devel@lists.freedesktop.org Subject: [PATCH v4 1/2] virtio-gpu: add VIRTIO_GPU_F_EDID feature Date: Tue, 30 Oct 2018 07:32:05 +0100 Message-Id: <20181030063206.19528-2-kraxel@redhat.com> In-Reply-To: <20181030063206.19528-1-kraxel@redhat.com> References: <20181030063206.19528-1-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Tue, 30 Oct 2018 06:32:13 +0000 (UTC) X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Michael S. Tsirkin" , David Airlie , Jason Wang , open list , "open list:VIRTIO CORE, NET AND BLOCK DRIVERS" , Gerd Hoffmann MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP The feature allows the guest request an EDID blob (describing monitor capabilities) for a given scanout (aka virtual monitor connector). It brings a new command message, which has just a scanout field (beside the standard virtio-gpu header) and a response message which carries the EDID data. Signed-off-by: Gerd Hoffmann Reviewed-by: Dave Airlie --- include/uapi/linux/virtio_gpu.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/include/uapi/linux/virtio_gpu.h b/include/uapi/linux/virtio_gpu.h index f43c3c6171..8e88eba1fa 100644 --- a/include/uapi/linux/virtio_gpu.h +++ b/include/uapi/linux/virtio_gpu.h @@ -41,6 +41,7 @@ #include #define VIRTIO_GPU_F_VIRGL 0 +#define VIRTIO_GPU_F_EDID 1 enum virtio_gpu_ctrl_type { VIRTIO_GPU_UNDEFINED = 0, @@ -56,6 +57,7 @@ enum virtio_gpu_ctrl_type { VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING, VIRTIO_GPU_CMD_GET_CAPSET_INFO, VIRTIO_GPU_CMD_GET_CAPSET, + VIRTIO_GPU_CMD_GET_EDID, /* 3d commands */ VIRTIO_GPU_CMD_CTX_CREATE = 0x0200, @@ -76,6 +78,7 @@ enum virtio_gpu_ctrl_type { VIRTIO_GPU_RESP_OK_DISPLAY_INFO, VIRTIO_GPU_RESP_OK_CAPSET_INFO, VIRTIO_GPU_RESP_OK_CAPSET, + VIRTIO_GPU_RESP_OK_EDID, /* error responses */ VIRTIO_GPU_RESP_ERR_UNSPEC = 0x1200, @@ -291,6 +294,21 @@ struct virtio_gpu_resp_capset { __u8 capset_data[]; }; +/* VIRTIO_GPU_CMD_GET_EDID */ +struct virtio_gpu_cmd_get_edid { + struct virtio_gpu_ctrl_hdr hdr; + __le32 scanout; + __le32 padding; +}; + +/* VIRTIO_GPU_RESP_OK_EDID */ +struct virtio_gpu_resp_edid { + struct virtio_gpu_ctrl_hdr hdr; + __le32 size; + __le32 padding; + __u8 edid[1024]; +}; + #define VIRTIO_GPU_EVENT_DISPLAY (1 << 0) struct virtio_gpu_config {