[Intel-gfx] [PATCH 1/3] drm/vgem: Fix mmaping

[Rodrigo Vivi]

Is this something that Dave or Jani could help us with?

This is a critical fix that blocking some projects around.

Thanks,
Rodrigo.

On Sat, Jun 25, 2016 at 3:39 AM, Chris Wilson <chris at chris-wilson.co.uk> wrote:
> On Thu, Jun 23, 2016 at 03:35:32PM +0100, Chris Wilson wrote:
>> The vGEM mmap code has bitrotted slightly and now immediately BUGs.
>> Since vGEM was last updated, there are new core GEM facilities to
>> provide more common functions, so let's use those here.
>>
>> v2: drm_gem_free_mmap_offset() is performed from
>> drm_gem_object_release() so we can remove the redundant call.
>>
>> Testcase: igt/vgem_basic/mmap
>> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96603
>> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
>> Cc: Sean Paul <seanpaul at chromium.org>
>> Cc: Zach Reizner <zachr at google.com>
>> Cc: Matthew Auld <matthew.auld at intel.com>
>> Tested-by: Humberto Israel Perez Rodriguez <humberto.i.perez.rodriguez at intel.com>
>> Reviewed-by: Matthew Auld <matthew.auld at intel.com>
>
> Hi Thierry, Daniel recommended to bug you for stewardship of drm-misc in
> his absence. Could you please consider this patch? Our CI is now
> tripping over this issue.
>
> Sean or Zach could you please ack? And have a look at the following pair
> of dma-buf fence patches? I have tests ready for our CI that use the
> vgem dma-buf to demonstrate the lack of synchronisation in i915.ko (and
> so exercise the fixes without requiring a second piece of hardware).
> -Chris
>
> --
> Chris Wilson, Intel Open Source Technology Centre
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-- 
Rodrigo Vivi
Blog: http://blog.vivi.eng.br