From patchwork Wed Feb 5 10:59:55 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 11366089 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4A85C112B for ; Wed, 5 Feb 2020 11:00:15 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 254BA222C2 for ; Wed, 5 Feb 2020 11:00:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="GnR6foxt" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 254BA222C2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EDAE46E954; Wed, 5 Feb 2020 11:00:07 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from us-smtp-delivery-1.mimecast.com (us-smtp-2.mimecast.com [207.211.31.81]) by gabe.freedesktop.org (Postfix) with ESMTPS id 813726E954 for ; Wed, 5 Feb 2020 11:00:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1580900405; 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=BgAf28tr3sqHVEILT1FNGmbW4lhfnumj/1HGg/VPkDg=; b=GnR6foxt8d/HB0OlR0ZyTuM2/PDRbmhWawxP0uiZLeTxqcikS/HL5BIGJILJgNEINajBDr wpE7t6O7UnKq7O3y5wGmaU40H6gSWkQgz745MUoYqNEzRPvZG3oeyJiOJnmsXPpFg0LZXk Sb6crxLT+4LUnt/2JmU96Urj6d4pk+A= 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-341-irqP3HoTMueL5ix49kOxrA-1; Wed, 05 Feb 2020 06:00:01 -0500 X-MC-Unique: irqP3HoTMueL5ix49kOxrA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id AE38D100FC40; Wed, 5 Feb 2020 10:59:59 +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 A895960BF7; Wed, 5 Feb 2020 10:59:56 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 02C75939C; Wed, 5 Feb 2020 11:59:56 +0100 (CET) From: Gerd Hoffmann To: dri-devel@lists.freedesktop.org Subject: [PATCH 4/4] drm/virtio: move virtio_gpu_mem_entry initialization to new function Date: Wed, 5 Feb 2020 11:59:55 +0100 Message-Id: <20200205105955.28143-5-kraxel@redhat.com> In-Reply-To: <20200205105955.28143-1-kraxel@redhat.com> References: <20200205105955.28143-1-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: David Airlie , open list , "open list:VIRTIO GPU DRIVER" , Gerd Hoffmann , gurchetansingh@chromium.org MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Introduce new virtio_gpu_object_shmem_init() helper function which will create the virtio_gpu_mem_entry array, containing the backing storage information for the host. For the most path this just moves code from virtio_gpu_object_attach(). Signed-off-by: Gerd Hoffmann --- drivers/gpu/drm/virtio/virtgpu_drv.h | 4 ++ drivers/gpu/drm/virtio/virtgpu_object.c | 49 +++++++++++++++++++++++++ drivers/gpu/drm/virtio/virtgpu_vq.c | 49 ++----------------------- 3 files changed, 56 insertions(+), 46 deletions(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index 15fb3c12f22f..be62a7469b04 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -71,6 +71,10 @@ struct virtio_gpu_object { struct sg_table *pages; uint32_t mapped; + + struct virtio_gpu_mem_entry *ents; + unsigned int nents; + bool dumb; bool created; }; diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c index bce2b3d843fe..4e82e269a1f4 100644 --- a/drivers/gpu/drm/virtio/virtgpu_object.c +++ b/drivers/gpu/drm/virtio/virtgpu_object.c @@ -121,6 +121,49 @@ struct drm_gem_object *virtio_gpu_create_object(struct drm_device *dev, return &bo->base.base; } +static int virtio_gpu_object_shmem_init(struct virtio_gpu_device *vgdev, + struct virtio_gpu_object *bo) +{ + bool use_dma_api = !virtio_has_iommu_quirk(vgdev->vdev); + struct scatterlist *sg; + int si, ret; + + ret = drm_gem_shmem_pin(&bo->base.base); + if (ret < 0) + return -EINVAL; + + bo->pages = drm_gem_shmem_get_sg_table(&bo->base.base); + if (bo->pages == NULL) { + drm_gem_shmem_unpin(&bo->base.base); + return -EINVAL; + } + + if (use_dma_api) { + bo->mapped = dma_map_sg(vgdev->vdev->dev.parent, + bo->pages->sgl, bo->pages->nents, + DMA_TO_DEVICE); + bo->nents = bo->mapped; + } else { + bo->nents = bo->pages->nents; + } + + bo->ents = kmalloc_array(bo->nents, sizeof(struct virtio_gpu_mem_entry), + GFP_KERNEL); + if (!bo->ents) { + DRM_ERROR("failed to allocate ent list\n"); + return -ENOMEM; + } + + for_each_sg(bo->pages->sgl, sg, bo->nents, si) { + bo->ents[si].addr = cpu_to_le64(use_dma_api + ? sg_dma_address(sg) + : sg_phys(sg)); + bo->ents[si].length = cpu_to_le32(sg->length); + bo->ents[si].padding = 0; + } + return 0; +} + int virtio_gpu_object_create(struct virtio_gpu_device *vgdev, struct virtio_gpu_object_params *params, struct virtio_gpu_object **bo_ptr, @@ -165,6 +208,12 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev, objs, fence); } + ret = virtio_gpu_object_shmem_init(vgdev, bo); + if (ret != 0) { + virtio_gpu_free_object(&shmem_obj->base); + return ret; + } + ret = virtio_gpu_object_attach(vgdev, bo, NULL); if (ret != 0) { virtio_gpu_free_object(&shmem_obj->base); diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c index e258186bedb2..7db91376f2f2 100644 --- a/drivers/gpu/drm/virtio/virtgpu_vq.c +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c @@ -1081,54 +1081,11 @@ int virtio_gpu_object_attach(struct virtio_gpu_device *vgdev, struct virtio_gpu_object *obj, struct virtio_gpu_fence *fence) { - bool use_dma_api = !virtio_has_iommu_quirk(vgdev->vdev); - struct virtio_gpu_mem_entry *ents; - struct scatterlist *sg; - int si, nents, ret; - - if (WARN_ON_ONCE(!obj->created)) - return -EINVAL; - if (WARN_ON_ONCE(obj->pages)) - return -EINVAL; - - ret = drm_gem_shmem_pin(&obj->base.base); - if (ret < 0) - return -EINVAL; - - obj->pages = drm_gem_shmem_get_sg_table(&obj->base.base); - if (obj->pages == NULL) { - drm_gem_shmem_unpin(&obj->base.base); - return -EINVAL; - } - - if (use_dma_api) { - obj->mapped = dma_map_sg(vgdev->vdev->dev.parent, - obj->pages->sgl, obj->pages->nents, - DMA_TO_DEVICE); - nents = obj->mapped; - } else { - nents = obj->pages->nents; - } - - /* gets freed when the ring has consumed it */ - ents = kmalloc_array(nents, sizeof(struct virtio_gpu_mem_entry), - GFP_KERNEL); - if (!ents) { - DRM_ERROR("failed to allocate ent list\n"); - return -ENOMEM; - } - - for_each_sg(obj->pages->sgl, sg, nents, si) { - ents[si].addr = cpu_to_le64(use_dma_api - ? sg_dma_address(sg) - : sg_phys(sg)); - ents[si].length = cpu_to_le32(sg->length); - ents[si].padding = 0; - } - virtio_gpu_cmd_resource_attach_backing(vgdev, obj->hw_res_handle, - ents, nents, + obj->ents, obj->nents, fence); + obj->ents = NULL; + obj->nents = 0; return 0; }