From mboxrd@z Thu Jan 1 00:00:00 1970 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=-6.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 6A98DC352A3 for ; Fri, 7 Feb 2020 07:46:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2842821741 for ; Fri, 7 Feb 2020 07:46:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="DTdK9jIr" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726988AbgBGHqu (ORCPT ); Fri, 7 Feb 2020 02:46:50 -0500 Received: from us-smtp-2.mimecast.com ([207.211.31.81]:44356 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726136AbgBGHqt (ORCPT ); Fri, 7 Feb 2020 02:46:49 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1581061607; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:in-reply-to:in-reply-to:references:references; bh=fmCjO1mWw87Uk8KxV50u3D/PSK+giRhiznxuy+0ak7w=; b=DTdK9jIr3APC0Vz+zloVwnOxw1/arA9xNsAYiAQTw3Ofe/mcQDK56zaSyB7casQcTjuqrv AV7FVUKlYtV1b2nqrvX1iUzD9lA1hwalNwKVquUDoJSovgeSKJOV9CZc27sqRLjTF0sAJq B62YJNaoQO9vohLttIW/T+yXSkDRq3c= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-119-6Jop_BxFNqm0yf1pGAQ8Kg-1; Fri, 07 Feb 2020 02:46:44 -0500 X-MC-Unique: 6Jop_BxFNqm0yf1pGAQ8Kg-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 6E4711081FAD; Fri, 7 Feb 2020 07:46:42 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-116-112.ams2.redhat.com [10.36.116.112]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4044487B1C; Fri, 7 Feb 2020 07:46:39 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 9543B31F3B; Fri, 7 Feb 2020 08:46:38 +0100 (CET) From: Gerd Hoffmann To: dri-devel@lists.freedesktop.org Cc: gurchetansingh@chromium.org, olvaffe@gmail.com, Gerd Hoffmann , David Airlie , Daniel Vetter , virtualization@lists.linux-foundation.org (open list:VIRTIO GPU DRIVER), linux-kernel@vger.kernel.org (open list) Subject: [PATCH v2 2/4] drm/virtio: resource teardown tweaks Date: Fri, 7 Feb 2020 08:46:36 +0100 Message-Id: <20200207074638.26386-3-kraxel@redhat.com> In-Reply-To: <20200207074638.26386-1-kraxel@redhat.com> References: <20200207074638.26386-1-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add new virtio_gpu_cleanup_object() helper function for object cleanup. Wire up callback function for resource unref, do cleanup from callback when we know the host stopped using the resource. Signed-off-by: Gerd Hoffmann --- drivers/gpu/drm/virtio/virtgpu_drv.h | 4 +++- drivers/gpu/drm/virtio/virtgpu_object.c | 19 +++++++++++----- drivers/gpu/drm/virtio/virtgpu_vq.c | 29 ++++++++++++++++++++++--- 3 files changed, 43 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index 7e69c06e168e..1bc13f6b161b 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -114,6 +114,7 @@ struct virtio_gpu_vbuffer { char *resp_buf; int resp_size; virtio_gpu_resp_cb resp_cb; + void *resp_cb_data; struct virtio_gpu_object_array *objs; struct list_head list; @@ -262,7 +263,7 @@ void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev, struct virtio_gpu_object_array *objs, struct virtio_gpu_fence *fence); void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev, - uint32_t resource_id); + struct virtio_gpu_object *bo); void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev, uint64_t offset, uint32_t width, uint32_t height, @@ -355,6 +356,7 @@ void virtio_gpu_fence_event_process(struct virtio_gpu_device *vdev, u64 last_seq); /* virtio_gpu_object */ +void virtio_gpu_cleanup_object(struct virtio_gpu_object *bo); struct drm_gem_object *virtio_gpu_create_object(struct drm_device *dev, size_t size); int virtio_gpu_object_create(struct virtio_gpu_device *vgdev, diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c index 017a9e0fc3bb..28a161af7503 100644 --- a/drivers/gpu/drm/virtio/virtgpu_object.c +++ b/drivers/gpu/drm/virtio/virtgpu_object.c @@ -61,6 +61,14 @@ static void virtio_gpu_resource_id_put(struct virtio_gpu_device *vgdev, uint32_t } } +void virtio_gpu_cleanup_object(struct virtio_gpu_object *bo) +{ + struct virtio_gpu_device *vgdev = bo->base.base.dev->dev_private; + + virtio_gpu_resource_id_put(vgdev, bo->hw_res_handle); + drm_gem_shmem_free_object(&bo->base.base); +} + static void virtio_gpu_free_object(struct drm_gem_object *obj) { struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(obj); @@ -68,11 +76,12 @@ static void virtio_gpu_free_object(struct drm_gem_object *obj) if (bo->pages) virtio_gpu_object_detach(vgdev, bo); - if (bo->created) - virtio_gpu_cmd_unref_resource(vgdev, bo->hw_res_handle); - virtio_gpu_resource_id_put(vgdev, bo->hw_res_handle); - - drm_gem_shmem_free_object(obj); + if (bo->created) { + virtio_gpu_cmd_unref_resource(vgdev, bo); + /* completion handler calls virtio_gpu_cleanup_object() */ + return; + } + virtio_gpu_cleanup_object(bo); } static const struct drm_gem_object_funcs virtio_gpu_gem_funcs = { diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c index df499fb64ac7..4e22c3914f94 100644 --- a/drivers/gpu/drm/virtio/virtgpu_vq.c +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c @@ -164,6 +164,16 @@ static void *virtio_gpu_alloc_cmd(struct virtio_gpu_device *vgdev, NULL); } +static void *virtio_gpu_alloc_cmd_cb(struct virtio_gpu_device *vgdev, + struct virtio_gpu_vbuffer **vbuffer_p, + int size, + virtio_gpu_resp_cb cb) +{ + return virtio_gpu_alloc_cmd_resp(vgdev, cb, vbuffer_p, size, + sizeof(struct virtio_gpu_ctrl_hdr), + NULL); +} + static void free_vbuf(struct virtio_gpu_device *vgdev, struct virtio_gpu_vbuffer *vbuf) { @@ -507,18 +517,31 @@ void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev, bo->created = true; } +static void virtio_gpu_cmd_unref_cb(struct virtio_gpu_device *vgdev, + struct virtio_gpu_vbuffer *vbuf) +{ + struct virtio_gpu_object *bo; + + bo = vbuf->resp_cb_data; + vbuf->resp_cb_data = NULL; + + virtio_gpu_cleanup_object(bo); +} + void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev, - uint32_t resource_id) + struct virtio_gpu_object *bo) { struct virtio_gpu_resource_unref *cmd_p; struct virtio_gpu_vbuffer *vbuf; - cmd_p = virtio_gpu_alloc_cmd(vgdev, &vbuf, sizeof(*cmd_p)); + cmd_p = virtio_gpu_alloc_cmd_cb(vgdev, &vbuf, sizeof(*cmd_p), + virtio_gpu_cmd_unref_cb); memset(cmd_p, 0, sizeof(*cmd_p)); cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_RESOURCE_UNREF); - cmd_p->resource_id = cpu_to_le32(resource_id); + cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle); + vbuf->resp_cb_data = bo; virtio_gpu_queue_ctrl_buffer(vgdev, vbuf); } -- 2.18.1