[Beignet] Beignet not working on Dell Precision M3800

[Yang, Rong R]

-----Original Message-----
From: Yichao Yu [mailto:yyc1992 at gmail.com] 
Sent: Monday, May 19, 2014 8:10 PM
To: Yang, Rong R
Cc: beignet at lists.freedesktop.org
Subject: Re: [Beignet] Beignet not working on Dell Precision M3800

Hi,

On Mon, May 19, 2014 at 1:59 AM, Yang, Rong R <rong.r.yang at intel.com> wrote:
> The beignet only support Ivy Bridge now, but i7-4702HQ is Haswell.

I guess I missed the Supported Hardware note on the main page.... :P

> For beignet's Haswell support is ongoing, and almost finish. There are some Haswell patches has pushed today, you can try it.

I have just tested it and it seems that at least something is working now[1]!! Thanks for the work.
It also seems that the screen is only frozen when it encounters some failures (e.g. when dealing with 3d images), is it possible to detect these and make it fail less violently?

[Rong]: Screen frozen may be GPU hang, can you provide your tests or kernel, then I will reproduce and fix it.

> But because of the drm kernel driver's restrict, if you want to run OpenCL applications with local memory enabled, you should apply the attached patch to your kernel, otherwise, the application will fail.

Is this the only way to workaround this issue or is there any plan to get a fix upstream? May also be great if this can at least be changed dynamically.

[Rong]: Yes, must hack the kernel to walk around it now, and the drm driver team is handling it now, but maybe need some time.


Looking forward to full support soon.

Yichao Yu

>
> Thanks
>