Re: MPIDR Aff0 question

2016-02-05 Thread Marc Zyngier
On 05/02/16 09:23, Andrew Jones wrote: > On Thu, Feb 04, 2016 at 06:51:06PM +, Marc Zyngier wrote: >> Hi Drew, >> >> On 04/02/16 18:38, Andrew Jones wrote: >>> >>> Hi Marc and Andre, >>> >>> I completely understand why reset_mpidr() limits Aff0 to 16, thanks >>> to Andre's nice comment about

Re: MPIDR Aff0 question

2016-02-05 Thread Mark Rutland
On Fri, Feb 05, 2016 at 10:23:53AM +0100, Andrew Jones wrote: > On Thu, Feb 04, 2016 at 06:51:06PM +, Marc Zyngier wrote: > What would the benefit of defining a "socket"? > > That's a good lead in for my next question. While I don't believe > there needs to be any relationship between socket

Re: MPIDR Aff0 question

2016-02-05 Thread Andrew Jones
On Fri, Feb 05, 2016 at 10:37:42AM +, Marc Zyngier wrote: > On 05/02/16 09:23, Andrew Jones wrote: > > On Thu, Feb 04, 2016 at 06:51:06PM +, Marc Zyngier wrote: > >> Hi Drew, > >> > >> On 04/02/16 18:38, Andrew Jones wrote: > >>> > >>> Hi Marc and Andre, > >>> > >>> I completely understand

Re: MPIDR Aff0 question

2016-02-05 Thread Andrew Jones
On Fri, Feb 05, 2016 at 11:00:33AM +, Mark Rutland wrote: > On Fri, Feb 05, 2016 at 10:23:53AM +0100, Andrew Jones wrote: > > On Thu, Feb 04, 2016 at 06:51:06PM +, Marc Zyngier wrote: > > What would the benefit of defining a "socket"? > > > > That's a good lead in for my next question.

Re: MPIDR Aff0 question

2016-02-05 Thread Marc Zyngier
On 05/02/16 12:03, Andrew Jones wrote: > On Fri, Feb 05, 2016 at 10:37:42AM +, Marc Zyngier wrote: >> On 05/02/16 09:23, Andrew Jones wrote: >>> On Thu, Feb 04, 2016 at 06:51:06PM +, Marc Zyngier wrote: Hi Drew, On 04/02/16 18:38, Andrew Jones wrote: > > Hi Marc and

Re: MPIDR Aff0 question

2016-02-04 Thread Marc Zyngier
Hi Drew, On 04/02/16 18:38, Andrew Jones wrote: > > Hi Marc and Andre, > > I completely understand why reset_mpidr() limits Aff0 to 16, thanks > to Andre's nice comment about ICC_SGIxR. Now, here's my question; > it seems that the Cortex-A{53,57,72} manuals want to further limit > Aff0 to 4,