Re: [PATCH v4 00/17] drm: add gem ttm helpers, rework mmap workflow.

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On Tue, Aug 27, 2019 at 07:13:41AM +0200, Gerd Hoffmann wrote:
>   Hi,
> 
> > Also this patch series also adjust vram helpers, and I think it has a
> > slightly different goal: Just aligning mmap paths a bit more between
> > ttm and not-ttm based drivers.
> 
> Not just ttm/not-ttm.  gem_driver->fops->mmap is the only fops callback
> where we can't use a generic gem callback today.  This series tries to
> fix that with the new drm_gem_object_funcs->mmap hook, so the mmap()
> code path isn't the odd one which works different than every other
> drm_gem_object operation.
> 
> > Seems like a good goal, details might need adjustment.
> 
> Which details?

Just a general comment that the tricky parts are always in the details ...
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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