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Date: Tue, 14 May 2019 14:16:07 -0700 From: Stephen Boyd <swboyd@...omium.org> To: Amit Kucheria <amit.kucheria@...aro.org>, Matthias Kaehlcke <mka@...omium.org> Cc: Andy Gross <andy.gross@...aro.org>, David Brown <david.brown@...aro.org>, Rob Herring <robh+dt@...nel.org>, Mark Rutland <mark.rutland@....com>, linux-arm-msm <linux-arm-msm@...r.kernel.org>, "open list:ARM/QUALCOMM SUPPORT" <linux-soc@...r.kernel.org>, "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" <devicetree@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>, Douglas Anderson <dianders@...omium.org>, Rajendra Nayak <rnayak@...eaurora.org> Subject: Re: [PATCH] arm64: dts: sdm845: Add CPU topology Quoting Amit Kucheria (2019-05-13 04:54:12) > On Mon, May 13, 2019 at 4:31 PM Amit Kucheria <amit.kucheria@...aro.org> wrote: > > > > On Tue, Jan 15, 2019 at 12:13 AM Matthias Kaehlcke <mka@...omium.org> wrote: > > > > > > The 8 CPU cores of the SDM845 are organized in two clusters of 4 big > > > ("gold") and 4 little ("silver") cores. Add a cpu-map node to the DT > > > that describes this topology. > > > > This is partly true. There are two groups of gold and silver cores, > > but AFAICT they are in a single cluster, not two separate ones. SDM845 > > is one of the early examples of ARM's Dynamiq architecture. > > > > > Signed-off-by: Matthias Kaehlcke <mka@...omium.org> > > > > I noticed that this patch sneaked through for this merge window but > > perhaps we can whip up a quick fix for -rc2? > > > > And please find attached a patch to fix this up. Andy, since this > hasn't landed yet (can we still squash this into the original patch?), > I couldn't add a Fixes tag. > I had the same concern. Thanks for catching this. I suspect this must cause some problem for IPA given that it can't discern between the big and little "power clusters"? Either way, Reviewed-by: Stephen Boyd <swboyd@...omium.org>
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