[Intel-gfx] [PATCH v2] drm/i915/skl: Make sure to allocate mininum sizes in the DDB

[Daniel Vetter]

On Tue, Feb 24, 2015 at 07:56:58PM +0200, Ville Syrjälä wrote:
> On Mon, Feb 09, 2015 at 01:35:10PM +0000, Damien Lespiau wrote:
> > I overlooked the fact that we need to allocate a minimum 8 blocks and
> > that just allocating the planes depending on how much they need to fetch
> > from the DDB in proportion of how much memory bw is necessary for the
> > whole display can lead to cases where we don't respect those minima (and
> > thus overrun).
> > 
> > So, instead, start by allocating 8 blocks to each active display plane
> > and then allocate the remaining blocks like before.
> > 
> > v2: Rebase on top of -nightly
> > 
> > Cc: Mahesh Kumar <mahesh1.kumar at intel.com>
> > Signed-off-by: Damien Lespiau <damien.lespiau at intel.com>
> 
> OK after reading through the spec the minimum[] thing makes sense, so
> Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

Queued for -next, thanks for the patch.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch