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From: Chia-I Wu <olvaffe@gmail.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: ML dri-devel <dri-devel@lists.freedesktop.org>,
	Gurchetan Singh <gurchetansingh@chromium.org>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	"open list:VIRTIO GPU DRIVER" 
	<virtualization@lists.linux-foundation.org>,
	open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v6 15/18] drm/virtio: rework virtio_gpu_transfer_to_host_ioctl fencing
Date: Thu, 4 Jul 2019 12:08:14 -0700	[thread overview]
Message-ID: <CAPaKu7SDwR1TgFQK2XGEbRqSkCO0XZYxGhcjzsAwOH42aOHEEw@mail.gmail.com> (raw)
In-Reply-To: <20190704115138.ou77sb3rlrex67tj@sirius.home.kraxel.org>

On Thu, Jul 4, 2019 at 4:51 AM Gerd Hoffmann <kraxel@redhat.com> wrote:
>
>   Hi,
>
> > >         convert_to_hw_box(&box, &args->box);
> > >         if (!vgdev->has_virgl_3d) {
> > >                 virtio_gpu_cmd_transfer_to_host_2d
> > > -                       (vgdev, qobj, offset,
> > > +                       (vgdev, gem_to_virtio_gpu_obj(objs->objs[0]), offset,
> > >                          box.w, box.h, box.x, box.y, NULL);
> > > +               virtio_gpu_array_put_free(objs);
> > Don't we need this in non-3D case as well?
>
> No, ...
>
> > >                 virtio_gpu_cmd_transfer_to_host_3d
> > > -                       (vgdev, qobj,
> > > +                       (vgdev,
> > >                          vfpriv ? vfpriv->ctx_id : 0, offset,
> > > -                        args->level, &box, fence);
> > > -               reservation_object_add_excl_fence(qobj->base.base.resv,
> > > -                                                 &fence->f);
> > > +                        args->level, &box, objs, fence);
>
> ... 3d case passes the objs list to virtio_gpu_cmd_transfer_to_host_3d,
> so it gets added to the vbuf and released when the command is finished.
Why doesn't this apply to virtio_gpu_cmd_transfer_to_host_2d?

When object array was introduced, it was said that the object array
was to keep the objects alive until the vbuf using the objects is
retired..  That sounded applicable to any vbuf that uses objects.


>
> cheers,
>   Gerd
>

  reply	other threads:[~2019-07-04 19:08 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20190702141903.1131-1-kraxel@redhat.com>
2019-07-02 14:18 ` [PATCH v6 01/18] drm/virtio: pass gem reservation object to ttm init Gerd Hoffmann
2019-07-02 14:18 ` [PATCH v6 02/18] drm/virtio: switch virtio_gpu_wait_ioctl() to gem helper Gerd Hoffmann
2019-07-02 14:18 ` [PATCH v6 03/18] drm/virtio: simplify cursor updates Gerd Hoffmann
2019-07-02 14:18 ` [PATCH v6 04/18] drm/virtio: remove virtio_gpu_object_wait Gerd Hoffmann
2019-07-02 14:18 ` [PATCH v6 05/18] drm/virtio: drop no_wait argument from virtio_gpu_object_reserve Gerd Hoffmann
2019-07-02 14:18 ` [PATCH v6 06/18] drm/virtio: remove ttm calls from in virtio_gpu_object_{reserve,unreserve} Gerd Hoffmann
2019-07-03 18:02   ` Chia-I Wu
2019-07-04 11:10     ` Gerd Hoffmann
2019-07-04 19:17       ` Chia-I Wu
2019-07-05  8:53         ` Gerd Hoffmann
2019-07-07  5:30           ` Chia-I Wu
2019-07-02 14:18 ` [PATCH v6 07/18] drm/virtio: add virtio_gpu_object_array & helpers Gerd Hoffmann
2019-07-03 18:31   ` Chia-I Wu
2019-07-03 19:52     ` Chia-I Wu
2019-07-04 11:19       ` Gerd Hoffmann
2019-07-04 11:11     ` Gerd Hoffmann
2019-07-02 14:18 ` [PATCH v6 08/18] drm/virtio: rework virtio_gpu_execbuffer_ioctl fencing Gerd Hoffmann
2019-07-03 18:49   ` Chia-I Wu
2019-07-04 11:25     ` Gerd Hoffmann
2019-07-04 18:46       ` Chia-I Wu
2019-07-11  2:35         ` Chia-I Wu
2019-07-02 14:18 ` [PATCH v6 09/18] drm/virtio: rework virtio_gpu_object_create fencing Gerd Hoffmann
2019-07-02 14:18 ` [PATCH v6 10/18] drm/virtio: drop virtio_gpu_object_list_validate/virtio_gpu_unref_list Gerd Hoffmann
2019-07-02 14:18 ` [PATCH v6 11/18] drm/virtio: switch from ttm to gem shmem helpers Gerd Hoffmann
2019-07-04 13:33   ` Emil Velikov
2019-07-17  6:04   ` Chia-I Wu
2019-07-02 14:18 ` [PATCH v6 12/18] drm/virtio: remove virtio_gpu_alloc_object Gerd Hoffmann
2019-07-02 14:18 ` [PATCH v6 13/18] drm/virtio: drop virtio_gpu_object_{ref,unref} Gerd Hoffmann
2019-07-02 14:18 ` [PATCH v6 14/18] drm/virtio: rework virtio_gpu_transfer_from_host_ioctl fencing Gerd Hoffmann
2019-07-03 20:05   ` Chia-I Wu
2019-07-04 11:47     ` Gerd Hoffmann
2019-07-04 18:55       ` Chia-I Wu
2019-07-05  9:01         ` Gerd Hoffmann
2019-07-02 14:19 ` [PATCH v6 15/18] drm/virtio: rework virtio_gpu_transfer_to_host_ioctl fencing Gerd Hoffmann
2019-07-03 19:55   ` Chia-I Wu
2019-07-04 11:51     ` Gerd Hoffmann
2019-07-04 19:08       ` Chia-I Wu [this message]
2019-07-05  9:05         ` Gerd Hoffmann
2019-07-05 14:07           ` Gerd Hoffmann
2019-07-02 14:19 ` [PATCH v6 16/18] drm/virtio: rework virtio_gpu_cmd_context_{attach,detach}_resource Gerd Hoffmann
     [not found]   ` <CAAfnVBmKotCfkrM4hph4++FDrVUYR8WKpomP7Y0-aergqHTSyA@mail.gmail.com>
2019-07-04 12:00     ` Gerd Hoffmann
2019-07-02 14:19 ` [PATCH v6 17/18] drm/virtio: drop virtio_gpu_object_{reserve,unreserve} Gerd Hoffmann
2019-07-02 14:19 ` [PATCH v6 18/18] drm/virtio: add fence sanity check Gerd Hoffmann

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