| Message ID | 1432493418-12933-1-git-send-email-hauke@hauke-m.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 24 May 2015 at 20:50, Hauke Mehrtens <hauke@hauke-m.de> wrote: > In the default Broadcom SDK the shared override is activated for this > cache controller, do the same in the upstream code. Data and > instruction prefetching is not activated by default for this cache > controller on the bcm53xx SoC, do it manually like it is done in the > vendor SDK. > > Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> > --- > arch/arm/boot/dts/bcm5301x.dtsi | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/arch/arm/boot/dts/bcm5301x.dtsi b/arch/arm/boot/dts/bcm5301x.dtsi > index 78aec62..7d1578a 100644 > --- a/arch/arm/boot/dts/bcm5301x.dtsi > +++ b/arch/arm/boot/dts/bcm5301x.dtsi > @@ -78,6 +78,9 @@ > compatible = "arm,pl310-cache"; > reg = <0x2000 0x1000>; > cache-unified; > + arm,shared-override; > + arm,prefetch-data = <1>; > + arm,prefetch-instr = <1>; > cache-level = <2>; > }; > }; > -- > 2.1.4 Fwd-ing to Felix, who was also looking at this I believe.
On 05/24/2015 08:54 PM, Rafa? Mi?ecki wrote: > On 24 May 2015 at 20:50, Hauke Mehrtens <hauke@hauke-m.de> wrote: >> In the default Broadcom SDK the shared override is activated for this >> cache controller, do the same in the upstream code. Data and >> instruction prefetching is not activated by default for this cache >> controller on the bcm53xx SoC, do it manually like it is done in the >> vendor SDK. >> >> Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> >> --- >> arch/arm/boot/dts/bcm5301x.dtsi | 3 +++ >> 1 file changed, 3 insertions(+) >> This makes use of the attributes added by these two patches: http://www.spinics.net/lists/arm-kernel/msg416406.html http://www.spinics.net/lists/arm-kernel/msg418996.html I hope both patches will make it into 4.2, but there wasn't a negative comment in the last week. Hauke
diff --git a/arch/arm/boot/dts/bcm5301x.dtsi b/arch/arm/boot/dts/bcm5301x.dtsi index 78aec62..7d1578a 100644 --- a/arch/arm/boot/dts/bcm5301x.dtsi +++ b/arch/arm/boot/dts/bcm5301x.dtsi @@ -78,6 +78,9 @@ compatible = "arm,pl310-cache"; reg = <0x2000 0x1000>; cache-unified; + arm,shared-override; + arm,prefetch-data = <1>; + arm,prefetch-instr = <1>; cache-level = <2>; }; };
In the default Broadcom SDK the shared override is activated for this cache controller, do the same in the upstream code. Data and instruction prefetching is not activated by default for this cache controller on the bcm53xx SoC, do it manually like it is done in the vendor SDK. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> --- arch/arm/boot/dts/bcm5301x.dtsi | 3 +++ 1 file changed, 3 insertions(+)