From patchwork Sun Nov 10 22:18:37 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 13870076 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 B87E5D12D5A for ; Sun, 10 Nov 2024 22:20:21 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tAGHi-0003c5-T9; Sun, 10 Nov 2024 17:19:54 -0500 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 1tAGHg-0003bb-N4 for qemu-devel@nongnu.org; Sun, 10 Nov 2024 17:19:52 -0500 Received: from sender4-pp-f112.zoho.com ([136.143.188.112]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tAGHf-0008NB-0T for qemu-devel@nongnu.org; Sun, 10 Nov 2024 17:19:52 -0500 ARC-Seal: i=1; a=rsa-sha256; t=1731277179; cv=none; d=zohomail.com; s=zohoarc; b=nUYmbwMxuIzzPySq2idz4aimZkqwCqxNXfnaFwxurHhbY0uqMcUZ9IRDh7ZIoNaa4tISTalpGYjxlQMidrgFHVLOL37nVXaIsvhh737kuxHGXqRiuaD+RUd0mep9FCm+Qe1ryMs3661ySEVToGzCqWt+hJB5f9yqGwLPeCgCAAg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1731277179; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=t0l58p/IYoyKilKGzmifNXiUNaR4rM42FU5Tp4PI1Xk=; b=eOWDJCpqQBtfIwJs6Wxwud6BNxyYfd8NhNAeqGZoLIe4IZhRYnrKjsOQ+lsxv73dIhH0vxGfdIKZKctVtLM4Fj58khaVwjxgBp3xqfSFSFRGqueQZiOnh3t1elDr9pd3hQhohtEIeRI8LxGynlccwNoTni/NDptu9TtzCEf7uZw= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=dmitry.osipenko@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1731277179; s=zohomail; d=collabora.com; i=dmitry.osipenko@collabora.com; h=From:From:To:To:Cc:Cc:Subject:Subject:Date:Date:Message-ID:In-Reply-To:References:MIME-Version:Content-Transfer-Encoding:Message-Id:Reply-To; bh=t0l58p/IYoyKilKGzmifNXiUNaR4rM42FU5Tp4PI1Xk=; b=BlHZaN3t20A1VYgCvXyUV+EhRZbHKAtLebABIoob0t2rpWP5q9lCE32nwRSO9/iI kY7wZZUCx9tZzZyTdO8SrITgmlQkJJD8sa9q2qnXk7PbUBg7sUCwZ6wJwm6e2aqlfLi JxQhQeigXZtW7+cmqj69fEYVlt4CSXrLYTQKH9Q4= Received: by mx.zohomail.com with SMTPS id 1731277178354133.66477455957966; Sun, 10 Nov 2024 14:19:38 -0800 (PST) From: Dmitry Osipenko To: Akihiko Odaki , Huang Rui , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Gerd Hoffmann , =?utf-8?q?Alex_Benn=C3=A9e?= , "Michael S . Tsirkin" , Paolo Bonzini Cc: Gert Wollny , qemu-devel@nongnu.org, Gurchetan Singh , Alyssa Ross , =?utf-8?q?Roger_Pau_Monn=C3=A9?= , Alex Deucher , Stefano Stabellini , =?utf-8?q?Christian_K?= =?utf-8?q?=C3=B6nig?= , Xenia Ragiadakou , Pierre-Eric Pelloux-Prayer , Honglei Huang , Julia Zhang , Chen Jiqian , Rob Clark , Yiwei Zhang , Sergio Lopez Pascual Subject: [PATCH v4 5/5] virtio-gpu: Support DRM native context Date: Mon, 11 Nov 2024 01:18:37 +0300 Message-ID: <20241110221838.2241356-6-dmitry.osipenko@collabora.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241110221838.2241356-1-dmitry.osipenko@collabora.com> References: <20241110221838.2241356-1-dmitry.osipenko@collabora.com> MIME-Version: 1.0 X-ZohoMailClient: External Received-SPF: pass client-ip=136.143.188.112; envelope-from=dmitry.osipenko@collabora.com; helo=sender4-pp-f112.zoho.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, 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_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, 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: 2.1.29 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 Add support for DRM native contexts to VirtIO-GPU. DRM context is enabled using a new virtio-gpu-gl device option "drm_native_context=on". Unlike Virgl and Venus contexts that operate on application API level, DRM native contexts work on a kernel UAPI level. This lower level results in a lightweight context implementations that yield better performance. Signed-off-by: Dmitry Osipenko --- docs/system/devices/virtio-gpu.rst | 11 +++++++++++ hw/display/virtio-gpu-gl.c | 2 ++ hw/display/virtio-gpu-virgl.c | 22 ++++++++++++++++++++++ hw/display/virtio-gpu.c | 15 +++++++++++++++ include/hw/virtio/virtio-gpu.h | 3 +++ 5 files changed, 53 insertions(+) diff --git a/docs/system/devices/virtio-gpu.rst b/docs/system/devices/virtio-gpu.rst index b7eb0fc0e727..f20c60016376 100644 --- a/docs/system/devices/virtio-gpu.rst +++ b/docs/system/devices/virtio-gpu.rst @@ -82,6 +82,17 @@ of virtio-gpu host memory window. This is typically between 256M and 8G. .. _venus: https://gitlab.freedesktop.org/virgl/venus-protocol/ +DRM native context is supported since release of `virglrenderer`_ v1.0.0 +using `drm`_ protocol. ``DRM`` virtio-gpu capability set ("capset") requires +host blob support (``hostmem`` and ``blob`` fields) and should be enabled +using ``drm_native_context`` field. The ``hostmem`` field specifies the size +of virtio-gpu host memory window. This is typically between 256M and 8G. + +.. parsed-literal:: + -device virtio-gpu-gl,hostmem=8G,blob=on,drm_native_context=on + +.. _drm: https://gitlab.freedesktop.org/virgl/virglrenderer/-/tree/main/src/drm + virtio-gpu rutabaga ------------------- diff --git a/hw/display/virtio-gpu-gl.c b/hw/display/virtio-gpu-gl.c index 53d938f23f20..23533fd8f35b 100644 --- a/hw/display/virtio-gpu-gl.c +++ b/hw/display/virtio-gpu-gl.c @@ -159,6 +159,8 @@ static Property virtio_gpu_gl_properties[] = { VIRTIO_GPU_FLAG_STATS_ENABLED, false), DEFINE_PROP_BIT("venus", VirtIOGPU, parent_obj.conf.flags, VIRTIO_GPU_FLAG_VENUS_ENABLED, false), + DEFINE_PROP_BIT("drm_native_context", VirtIOGPU, parent_obj.conf.flags, + VIRTIO_GPU_FLAG_DRM_ENABLED, false), DEFINE_PROP_END_OF_LIST(), }; diff --git a/hw/display/virtio-gpu-virgl.c b/hw/display/virtio-gpu-virgl.c index d59c7b6d48ed..5090dd717184 100644 --- a/hw/display/virtio-gpu-virgl.c +++ b/hw/display/virtio-gpu-virgl.c @@ -1236,6 +1236,19 @@ int virtio_gpu_virgl_init(VirtIOGPU *g) if (virtio_gpu_venus_enabled(g->parent_obj.conf)) { flags |= VIRGL_RENDERER_VENUS | VIRGL_RENDERER_RENDER_SERVER; } + if (virtio_gpu_drm_enabled(g->parent_obj.conf)) { + flags |= VIRGL_RENDERER_DRM; + + if (!gl->context_fence_enabled) { + /* + * Virglrenderer skips enabling DRM context support without + * enabled async-fence feature. VirtIO-GPU will initialize + * successfully, but DRM context won't be available in guest. + */ + error_report("DRM native context requires EGL display"); + return -EINVAL; + } + } #endif ret = virgl_renderer_init(g, flags, &virtio_gpu_3d_cbs); @@ -1298,5 +1311,14 @@ GArray *virtio_gpu_virgl_get_capsets(VirtIOGPU *g) } } + if (virtio_gpu_drm_enabled(g->parent_obj.conf)) { + virgl_renderer_get_cap_set(VIRTIO_GPU_CAPSET_DRM, + &capset_max_ver, + &capset_max_size); + if (capset_max_size) { + virtio_gpu_virgl_add_capset(capset_ids, VIRTIO_GPU_CAPSET_DRM); + } + } + return capset_ids; } diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index c0570ef8565a..c1acafe6246b 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -1492,6 +1492,21 @@ void virtio_gpu_device_realize(DeviceState *qdev, Error **errp) #endif } + if (virtio_gpu_drm_enabled(g->parent_obj.conf)) { +#ifdef VIRGL_VERSION_MAJOR + #if VIRGL_VERSION_MAJOR >= 1 + if (!virtio_gpu_blob_enabled(g->parent_obj.conf) || + !virtio_gpu_hostmem_enabled(g->parent_obj.conf)) { + error_setg(errp, "drm requires enabled blob and hostmem options"); + return; + } + #else + error_setg(errp, "old virglrenderer, drm unsupported"); + return; + #endif +#endif + } + if (!virtio_gpu_base_device_realize(qdev, virtio_gpu_handle_ctrl_cb, virtio_gpu_handle_cursor_cb, diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h index 99cc6286f473..f1799fcb6eee 100644 --- a/include/hw/virtio/virtio-gpu.h +++ b/include/hw/virtio/virtio-gpu.h @@ -98,6 +98,7 @@ enum virtio_gpu_base_conf_flags { VIRTIO_GPU_FLAG_CONTEXT_INIT_ENABLED, VIRTIO_GPU_FLAG_RUTABAGA_ENABLED, VIRTIO_GPU_FLAG_VENUS_ENABLED, + VIRTIO_GPU_FLAG_DRM_ENABLED, }; #define virtio_gpu_virgl_enabled(_cfg) \ @@ -118,6 +119,8 @@ enum virtio_gpu_base_conf_flags { (_cfg.hostmem > 0) #define virtio_gpu_venus_enabled(_cfg) \ (_cfg.flags & (1 << VIRTIO_GPU_FLAG_VENUS_ENABLED)) +#define virtio_gpu_drm_enabled(_cfg) \ + (_cfg.flags & (1 << VIRTIO_GPU_FLAG_DRM_ENABLED)) struct virtio_gpu_base_conf { uint32_t max_outputs;