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Re: [Qemu-devel] virtio-gpu: cursor update not in sync with resource upd


From: Dave Airlie
Subject: Re: [Qemu-devel] virtio-gpu: cursor update not in sync with resource update
Date: Tue, 15 Sep 2015 07:18:38 +1000

On 15 September 2015 at 07:14, Marc-André Lureau
<address@hidden> wrote:
> Hi
>
> On Mon, Sep 14, 2015 at 11:08 PM, Dave Airlie <address@hidden> wrote:
>> Currently the kernel driver does this:
>>
>>         ret = virtio_gpu_cmd_transfer_to_host_2d(vgdev, qobj->hw_res_handle, 
>> 0,
>>                                                  cpu_to_le32(64),
>>                                                  cpu_to_le32(64),
>>                                                  0, 0, &fence);
>>         if (!ret) {
>>                 reservation_object_add_excl_fence(qobj->tbo.resv,
>>                                                   &fence->f);
>>                 virtio_gpu_object_wait(qobj, false);
>>         }
>>
>> before moving the cursor, shouldn't that suffice?
>>
>> Do we fail the transfer sometimes?
>
>
> That's apparently not in Gerd tree.

Interesting, I'm not sure where this got lost,

I had it in my clone of Gerd's tree from a while back.

Dave.



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