On 13/12/16 12:16, Sudeep Holla wrote: > > > On 12/12/16 17:35, Marc Zyngier wrote: >> [+Sudeep] >> >> On 10/12/16 20:13, Christoffer Dall wrote: >>> The GICv2 CPU interface registers span across 8K, not 4K as indicated in >>> the DT. Only the GICC_DIR register is located after the initial 4K >>> boundary, leaving a functional system but without support for separately >>> EOI'ing and deactivating interrupts. >>> >>> After this change the system support split priority drop and interrupt >>> deactivation. >>> >>> Signed-off-by: Christoffer Dall <christoffer.dall@xxxxxxxxxx> >>> --- >>> arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts | 2 +- >>> 1 file changed, 1 insertion(+), 1 deletion(-) >>> >>> diff --git a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts >>> index 0205c97..2e0cf39 100644 >>> --- a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts >>> +++ b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts >>> @@ -126,7 +126,7 @@ >>> #address-cells = <0>; >>> interrupt-controller; >>> reg = <0 0x2c001000 0 0x1000>, >>> - <0 0x2c002000 0 0x1000>, >>> + <0 0x2c002000 0 0x2000>, >>> <0 0x2c004000 0 0x2000>, >>> <0 0x2c006000 0 0x2000>; >>> interrupts = <1 9 0xf04>; >>> >> >> Acked-by: Marc Zyngier <marc.zyngier@xxxxxxx> >> > > Thanks Marc, I see couple of other instances of this like tc2 and rtsm > model on arm64. Do they need to be fixed too ? I guess so. If so I will > fixup this to patch add tc1. And add another one for rtsm. Yes, that'd be good. > Also I see loads of gic-400 compatible dts(mainly rockchip and renasas) > having just 4k. Are they left like this intentionally ? I remember you > fixing most of the DTS when you found this issue initially. I still have these patches stashed somewhere (I remember sunxi being one of the offender as well). I also need to come up with a software workaround enabling the 8kB region with the old DT (because it is likely that KVM will stop working on them if we merge Christoffer's timer patches). Thanks, M. -- Jazz is not dead. It just smells funny... _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
