[PATCH] drm/amdgpu/virtual_dce: Need to pin the fb's bo

[Deng, Emily]

>-----Original Message-----
>From: Michel Dänzer <michel at daenzer.net>
>Sent: Friday, December 21, 2018 4:38 PM
>To: Deng, Emily <Emily.Deng at amd.com>
>Cc: amd-gfx at lists.freedesktop.org
>Subject: Re: [PATCH] drm/amdgpu/virtual_dce: Need to pin the fb's bo
>
>On 2018-12-21 8:26 a.m., Emily Deng wrote:
>> When the bo is used to set mode, the bo need to be pinned.
>
>On second thought, why does the BO need to be pinned? When using the display
>hardware, the BO needs to be pinned to prevent it from being moved while the
>hardware is scanning out from it, but that shouldn't be necessary here.
The pin here is used for scan out the buffer by remote display app.

Best wishes
Emily Deng


>
>--
>Earthling Michel Dänzer               |               http://www.amd.com
>Libre software enthusiast             |             Mesa and X developer