From nobody Mon Feb 9 21:11:57 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1620774130; cv=none; d=zohomail.com; s=zohoarc; b=TntkAmPzWzn2/W+BN54bj7DZ3mZkgv09vD2EFRB9BzCSeyXTmX7WIZnsdH2nBoHA9FZoa3EaWrQoTszruU6fIvRG3d/+WbicO62U3VGmsBlEoaZ9AGmxE8M4cqx4mydn/lHGfoavAZTju1Exln6NEfTaXBQLeo62cXXPafLoDWY= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1620774130; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=d2hYTzSyW6WVBkbNO0cDd7lwIFcSyrJ0r6rjrQZPkJ8=; b=F8bWK3tkuid2CIWR0h5nsCfj2BIxZbj+rZWjmIX3EfS6RR0UvzihSq5jG91//cOPQ3onk5twlgDpeOnRacL96WdwGJRpvubyBFlCNt6mUlqxPMjmRvcwHJZO342vCjIsPo4Q1wwCn7bk2peVMZAEhCVLenhKPAjTLsQZG7ZsrGU= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1620774130821668.1028093830868; Tue, 11 May 2021 16:02:10 -0700 (PDT) Received: from localhost ([::1]:48120 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lgbOD-0002Qf-LH for importer@patchew.org; Tue, 11 May 2021 19:02:09 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:36152) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lgbMQ-00082i-Lj for qemu-devel@nongnu.org; Tue, 11 May 2021 19:00:20 -0400 Received: from mga05.intel.com ([192.55.52.43]:2837) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lgbMI-0006DO-5o for qemu-devel@nongnu.org; Tue, 11 May 2021 19:00:18 -0400 Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2021 15:59:42 -0700 Received: from vkasired-desk2.fm.intel.com ([10.105.128.127]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2021 15:59:42 -0700 IronPort-SDR: TJYXGSrDCwFTf7CPj+FRAgk1nYC/dxD6q0TV/frs0eA44ZHdjtnEqjwxhoR4hGRrvz3av1uSha gNU8choDaeDA== X-IronPort-AV: E=McAfee;i="6200,9189,9981"; a="285065725" X-IronPort-AV: E=Sophos;i="5.82,291,1613462400"; d="scan'208";a="285065725" IronPort-SDR: A9n3tD+zR9NjPdj7Vv6+jFA/2UEnoI8aF/umI6FWIS9jQBbjYLoicf36vCeUZoSRgURRD/Vegz x7dZaXh9PfwQ== X-IronPort-AV: E=Sophos;i="5.82,291,1613462400"; d="scan'208";a="436883318" From: Vivek Kasireddy To: qemu-devel@nongnu.org Subject: [PATCH v4 10/13] virtio-gpu: Add helpers to create and destroy dmabuf objects Date: Tue, 11 May 2021 15:47:16 -0700 Message-Id: <20210511224719.387443-11-vivek.kasireddy@intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210511224719.387443-1-vivek.kasireddy@intel.com> References: <20210511224719.387443-1-vivek.kasireddy@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=192.55.52.43; envelope-from=vivek.kasireddy@intel.com; helo=mga05.intel.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Vivek Kasireddy , Gerd Hoffmann Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" These helpers can be useful for creating dmabuf objects from blobs and submitting them to the UI. Cc: Gerd Hoffmann Signed-off-by: Vivek Kasireddy --- hw/display/virtio-gpu-udmabuf.c | 74 +++++++++++++++++++++++++++++++++ include/hw/virtio/virtio-gpu.h | 15 +++++++ 2 files changed, 89 insertions(+) diff --git a/hw/display/virtio-gpu-udmabuf.c b/hw/display/virtio-gpu-udmabu= f.c index 3f569ae9c8..d486419a26 100644 --- a/hw/display/virtio-gpu-udmabuf.c +++ b/hw/display/virtio-gpu-udmabuf.c @@ -159,6 +159,71 @@ void virtio_gpu_fini_udmabuf(struct virtio_gpu_simple_= resource *res) } } =20 +static void virtio_gpu_free_dmabuf(VirtIOGPU *g, VGPUDMABuf *dmabuf) +{ + struct virtio_gpu_scanout *scanout; + + scanout =3D &g->parent_obj.scanout[dmabuf->scanout_id]; + dpy_gl_release_dmabuf(scanout->con, &dmabuf->buf); + QTAILQ_REMOVE(&g->dmabuf.bufs, dmabuf, next); + g_free(dmabuf); +} + +static VGPUDMABuf +*virtio_gpu_create_dmabuf(VirtIOGPU *g, + uint32_t scanout_id, + struct virtio_gpu_simple_resource *res, + struct virtio_gpu_framebuffer *fb) +{ + VGPUDMABuf *dmabuf; + + if (res->dmabuf_fd < 0) { + return NULL; + } + + dmabuf =3D g_new0(VGPUDMABuf, 1); + dmabuf->buf.width =3D fb->width; + dmabuf->buf.height =3D fb->height; + dmabuf->buf.stride =3D fb->stride; + dmabuf->buf.fourcc =3D qemu_pixman_to_drm_format(fb->format); + dmabuf->buf.fd =3D res->dmabuf_fd; + + dmabuf->scanout_id =3D scanout_id; + QTAILQ_INSERT_HEAD(&g->dmabuf.bufs, dmabuf, next); + + return dmabuf; +} + +int virtio_gpu_update_dmabuf(VirtIOGPU *g, + uint32_t scanout_id, + struct virtio_gpu_simple_resource *res, + struct virtio_gpu_framebuffer *fb) +{ + struct virtio_gpu_scanout *scanout =3D &g->parent_obj.scanout[scanout_= id]; + VGPUDMABuf *new_primary, *old_primary; + + new_primary =3D virtio_gpu_create_dmabuf(g, scanout_id, res, fb); + if (!new_primary) { + return -EINVAL; + } + + if (g->dmabuf.primary) { + old_primary =3D g->dmabuf.primary; + } + + g->dmabuf.primary =3D new_primary; + qemu_console_resize(scanout->con, + new_primary->buf.width, + new_primary->buf.height); + dpy_gl_scanout_dmabuf(scanout->con, &new_primary->buf); + + if (old_primary) { + virtio_gpu_free_dmabuf(g, old_primary); + } + + return 0; +} + #else =20 bool virtio_gpu_have_udmabuf(void) @@ -178,4 +243,13 @@ void virtio_gpu_fini_udmabuf(struct virtio_gpu_simple_= resource *res) /* nothing (stub) */ } =20 +int virtio_gpu_update_dmabuf(VirtIOGPU *g, + uint32_t scanout_id, + struct virtio_gpu_simple_resource *res, + struct virtio_gpu_framebuffer *fb) +{ + /* nothing (stub) */ + return 0; +} + #endif diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h index 66e7aaad0e..bcf54d970f 100644 --- a/include/hw/virtio/virtio-gpu.h +++ b/include/hw/virtio/virtio-gpu.h @@ -150,6 +150,12 @@ struct VirtIOGPUBaseClass { DEFINE_PROP_UINT32("xres", _state, _conf.xres, 1024), \ DEFINE_PROP_UINT32("yres", _state, _conf.yres, 768) =20 +typedef struct VGPUDMABuf { + QemuDmaBuf buf; + uint32_t scanout_id; + QTAILQ_ENTRY(VGPUDMABuf) next; +} VGPUDMABuf; + struct VirtIOGPU { VirtIOGPUBase parent_obj; =20 @@ -178,6 +184,11 @@ struct VirtIOGPU { uint32_t req_3d; uint32_t bytes_3d; } stats; + + struct { + QTAILQ_HEAD(, VGPUDMABuf) bufs; + VGPUDMABuf *primary; + } dmabuf; }; =20 struct VirtIOGPUClass { @@ -259,6 +270,10 @@ void virtio_gpu_update_cursor_data(VirtIOGPU *g, bool virtio_gpu_have_udmabuf(void); void virtio_gpu_init_udmabuf(struct virtio_gpu_simple_resource *res); void virtio_gpu_fini_udmabuf(struct virtio_gpu_simple_resource *res); +int virtio_gpu_update_dmabuf(VirtIOGPU *g, + uint32_t scanout_id, + struct virtio_gpu_simple_resource *res, + struct virtio_gpu_framebuffer *fb); =20 /* virtio-gpu-3d.c */ void virtio_gpu_virgl_process_cmd(VirtIOGPU *g, --=20 2.30.2