From patchwork Fri Jul 14 15:38:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Erico Nunes X-Patchwork-Id: 13313799 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 F2B6DC0015E for ; Fri, 14 Jul 2023 15:40:55 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qKKtu-0002yK-Vr; Fri, 14 Jul 2023 11:40:11 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qKKtt-0002xY-0b for qemu-devel@nongnu.org; Fri, 14 Jul 2023 11:40:09 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qKKtq-00052C-FZ for qemu-devel@nongnu.org; Fri, 14 Jul 2023 11:40:08 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1689349205; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=1sZ9SYBU/ys4QDrRgzOHqn/zPa7s96RHFYrhT9B6AxY=; b=BuchRJFLAnyrp+YQMkG4coNcDUSvPUACpYLuTOS4vBjWgGjf6lgDF2OAIl0nqfCdk0ripS XC5Dhzk1babswx9MEw4851Ua+vG6tu62yn+aoTTr6LGwBkJ9MtQRJ9wjyJoaVqKFIT8Ypp 2Bv5NHR/spsbsVmMU1c0/WBxAos60+s= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-376-Fstmzs5oMzaBoFvA-t50yQ-1; Fri, 14 Jul 2023 11:40:04 -0400 X-MC-Unique: Fstmzs5oMzaBoFvA-t50yQ-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id BD330858290 for ; Fri, 14 Jul 2023 15:40:03 +0000 (UTC) Received: from centennial.enunes.eu (unknown [10.43.17.57]) by smtp.corp.redhat.com (Postfix) with ESMTP id D383AC57964; Fri, 14 Jul 2023 15:40:02 +0000 (UTC) From: Erico Nunes To: qemu-devel@nongnu.org Cc: marcandre.lureau@redhat.com, slp@redhat.com, Erico Nunes Subject: [PATCH 2/3] contrib/vhost-user-gpu: add support for sending dmabuf modifiers Date: Fri, 14 Jul 2023 17:38:59 +0200 Message-Id: <20230714153900.475857-3-ernunes@redhat.com> In-Reply-To: <20230714153900.475857-1-ernunes@redhat.com> References: <20230714153900.475857-1-ernunes@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.8 Received-SPF: pass client-ip=170.10.133.124; envelope-from=ernunes@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org virglrenderer recently added virgl_renderer_resource_get_info_ext as a new api, which gets resource information, including dmabuf modifiers. We have to support dmabuf modifiers since the driver may choose to allocate buffers with these modifiers for efficiency, and importing buffers without modifiers information may result in completely broken rendering. Signed-off-by: Erico Nunes --- contrib/vhost-user-gpu/vhost-user-gpu.c | 5 ++- contrib/vhost-user-gpu/virgl.c | 51 +++++++++++++++++++++++-- contrib/vhost-user-gpu/vugpu.h | 9 +++++ 3 files changed, 61 insertions(+), 4 deletions(-) diff --git a/contrib/vhost-user-gpu/vhost-user-gpu.c b/contrib/vhost-user-gpu/vhost-user-gpu.c index 2e7815a7a3..aa304475a0 100644 --- a/contrib/vhost-user-gpu/vhost-user-gpu.c +++ b/contrib/vhost-user-gpu/vhost-user-gpu.c @@ -1071,6 +1071,7 @@ static gboolean protocol_features_cb(gint fd, GIOCondition condition, gpointer user_data) { const uint64_t protocol_edid = (1 << VHOST_USER_GPU_PROTOCOL_F_EDID); + const uint64_t protocol_dmabuf2 = (1 << VHOST_USER_GPU_PROTOCOL_F_DMABUF2); VuGpu *g = user_data; uint64_t protocol_features; VhostUserGpuMsg msg = { @@ -1082,7 +1083,7 @@ protocol_features_cb(gint fd, GIOCondition condition, gpointer user_data) return G_SOURCE_CONTINUE; } - protocol_features &= protocol_edid; + protocol_features &= (protocol_edid | protocol_dmabuf2); msg = (VhostUserGpuMsg) { .request = VHOST_USER_GPU_SET_PROTOCOL_FEATURES, @@ -1100,6 +1101,8 @@ protocol_features_cb(gint fd, GIOCondition condition, gpointer user_data) exit(EXIT_FAILURE); } + g->use_modifiers = !!(protocol_features & protocol_dmabuf2); + return G_SOURCE_REMOVE; } diff --git a/contrib/vhost-user-gpu/virgl.c b/contrib/vhost-user-gpu/virgl.c index 211aa110a9..1da6cc1588 100644 --- a/contrib/vhost-user-gpu/virgl.c +++ b/contrib/vhost-user-gpu/virgl.c @@ -318,6 +318,37 @@ virgl_resource_detach_backing(VuGpu *g, vg_cleanup_mapping_iov(g, res_iovs, num_iovs); } +static int +virgl_get_resource_info_modifiers(uint32_t resource_id, + struct virgl_renderer_resource_info *info, + uint64_t *modifiers) +{ + int ret; +#ifdef VIRGL_RENDERER_RESOURCE_INFO_EXT_VERSION + struct virgl_renderer_resource_info_ext info_ext; + ret = virgl_renderer_resource_get_info_ext(resource_id, &info_ext); + if (ret < 0) { + return ret; + } + + *info = info_ext.base; + *modifiers = info_ext.modifiers; +#else + ret = virgl_renderer_resource_get_info(resource_id, info); + if (ret < 0) { + return ret; + } + + /* + * Before virgl_renderer_resource_get_info_ext, + * getting the modifiers was not possible. + */ + *modifiers = 0; +#endif + + return 0; +} + static void virgl_cmd_set_scanout(VuGpu *g, struct virtio_gpu_ctrl_command *cmd) @@ -338,7 +369,9 @@ virgl_cmd_set_scanout(VuGpu *g, memset(&info, 0, sizeof(info)); if (ss.resource_id && ss.r.width && ss.r.height) { - ret = virgl_renderer_resource_get_info(ss.resource_id, &info); + uint64_t modifiers = 0; + ret = virgl_get_resource_info_modifiers(ss.resource_id, &info, + &modifiers); if (ret == -1) { g_critical("%s: illegal resource specified %d\n", __func__, ss.resource_id); @@ -354,8 +387,6 @@ virgl_cmd_set_scanout(VuGpu *g, } assert(fd >= 0); VhostUserGpuMsg msg = { - .request = VHOST_USER_GPU_DMABUF_SCANOUT, - .size = sizeof(VhostUserGpuDMABUFScanout), .payload.dmabuf_scanout.scanout_id = ss.scanout_id, .payload.dmabuf_scanout.x = ss.r.x, .payload.dmabuf_scanout.y = ss.r.y, @@ -367,6 +398,20 @@ virgl_cmd_set_scanout(VuGpu *g, .payload.dmabuf_scanout.fd_flags = info.flags, .payload.dmabuf_scanout.fd_drm_fourcc = info.drm_fourcc }; + + if (g->use_modifiers) { + /* + * The mesage uses all the fields set in dmabuf_scanout plus + * modifiers which is appended after VhostUserGpuDMABUFScanout. + */ + msg.request = VHOST_USER_GPU_DMABUF_SCANOUT2; + msg.size = sizeof(VhostUserGpuDMABUFScanout2); + msg.payload.dmabuf_scanout2.modifier = modifiers; + } else { + msg.request = VHOST_USER_GPU_DMABUF_SCANOUT; + msg.size = sizeof(VhostUserGpuDMABUFScanout); + } + vg_send_msg(g, &msg, fd); close(fd); } else { diff --git a/contrib/vhost-user-gpu/vugpu.h b/contrib/vhost-user-gpu/vugpu.h index f0f2069c47..509b679f03 100644 --- a/contrib/vhost-user-gpu/vugpu.h +++ b/contrib/vhost-user-gpu/vugpu.h @@ -37,6 +37,7 @@ typedef enum VhostUserGpuRequest { VHOST_USER_GPU_DMABUF_SCANOUT, VHOST_USER_GPU_DMABUF_UPDATE, VHOST_USER_GPU_GET_EDID, + VHOST_USER_GPU_DMABUF_SCANOUT2, } VhostUserGpuRequest; typedef struct VhostUserGpuDisplayInfoReply { @@ -84,6 +85,11 @@ typedef struct VhostUserGpuDMABUFScanout { int fd_drm_fourcc; } QEMU_PACKED VhostUserGpuDMABUFScanout; +typedef struct VhostUserGpuDMABUFScanout2 { + struct VhostUserGpuDMABUFScanout dmabuf_scanout; + uint64_t modifier; +} QEMU_PACKED VhostUserGpuDMABUFScanout2; + typedef struct VhostUserGpuEdidRequest { uint32_t scanout_id; } QEMU_PACKED VhostUserGpuEdidRequest; @@ -98,6 +104,7 @@ typedef struct VhostUserGpuMsg { VhostUserGpuScanout scanout; VhostUserGpuUpdate update; VhostUserGpuDMABUFScanout dmabuf_scanout; + VhostUserGpuDMABUFScanout2 dmabuf_scanout2; VhostUserGpuEdidRequest edid_req; struct virtio_gpu_resp_edid resp_edid; struct virtio_gpu_resp_display_info display_info; @@ -112,6 +119,7 @@ static VhostUserGpuMsg m __attribute__ ((unused)); #define VHOST_USER_GPU_MSG_FLAG_REPLY 0x4 #define VHOST_USER_GPU_PROTOCOL_F_EDID 0 +#define VHOST_USER_GPU_PROTOCOL_F_DMABUF2 1 struct virtio_gpu_scanout { uint32_t width, height; @@ -132,6 +140,7 @@ typedef struct VuGpu { bool virgl; bool virgl_inited; bool edid_inited; + bool use_modifiers; uint32_t inflight; struct virtio_gpu_scanout scanout[VIRTIO_GPU_MAX_SCANOUTS];