> -----Original Message----- > From: Marc Zyngier <maz@xxxxxxxxxx> > Sent: 05 August 2021 15:31 > To: Alim Akhtar <alim.akhtar@xxxxxxxxxxx> > Cc: 'Krzysztof Kozlowski' <krzysztof.kozlowski@xxxxxxxxxxxxx>; 'Rob Herring' > <robh+dt@xxxxxxxxxx>; devicetree@xxxxxxxxxxxxxxx; linux-arm- > kernel@xxxxxxxxxxxxxxxxxxx; linux-samsung-soc@xxxxxxxxxxxxxxx; linux- > kernel@xxxxxxxxxxxxxxx; 'Chanwoo Choi' <cw00.choi@xxxxxxxxxxx>; > 'Pankaj Dubey' <pankaj.dubey@xxxxxxxxxxx>; 'Sam Protsenko' > <semen.protsenko@xxxxxxxxxx> > Subject: Re: [PATCH] arm64: dts: exynos: correct GIC CPU interfaces address > range on Exynos7 > > On Thu, 05 Aug 2021 10:26:14 +0100, > "Alim Akhtar" <alim.akhtar@xxxxxxxxxxx> wrote: > > > > Hi Krzysztof, > > > > > -----Original Message----- > > > From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx> > > > Sent: 05 August 2021 13:07 > > > To: Rob Herring <robh+dt@xxxxxxxxxx>; devicetree@xxxxxxxxxxxxxxx; > > > linux- arm-kernel@xxxxxxxxxxxxxxxxxxx; > > > linux-samsung-soc@xxxxxxxxxxxxxxx; linux- kernel@xxxxxxxxxxxxxxx > > > Cc: Alim Akhtar <alim.akhtar@xxxxxxxxxxx>; Chanwoo Choi > > > <cw00.choi@xxxxxxxxxxx>; Pankaj Dubey > <pankaj.dubey@xxxxxxxxxxx>; > > > Sam Protsenko <semen.protsenko@xxxxxxxxxx>; Marc Zyngier > > > <maz@xxxxxxxxxx> > > > Subject: Re: [PATCH] arm64: dts: exynos: correct GIC CPU interfaces > > > address range on Exynos7 > > > > > > On 05/08/2021 09:21, Krzysztof Kozlowski wrote: > > > > The GIC-400 CPU interfaces address range is defined as > > > > 0x2000-0x3FFF (by ARM). > > > > > > > > > Looking at DDI0471B_gic400_r0p1_trm.pdf, CPU interface range is > > 0x0000 ~ 0x10000 > > I don't where you are getting this range from. The only 64kB range I'm aware > of is the optional integration trick to cope with 64kB pages that was > documented in the initial SBSA spec. The HW itself only decodes 8kB for the > CPU interface. > There was a typo in above range, thanks for the clarification. Got it. > M. > > -- > Without deviation from the norm, progress is not possible.
