Re: [RFC PATCH 0/8] CPUs capacity information for heterogeneous systems

2015-12-07 Thread Juri Lelli
On 07/12/15 13:18, Russell King - ARM Linux wrote: > On Mon, Dec 07, 2015 at 12:36:54PM +, Juri Lelli wrote: > > On 07/12/15 12:11, Russell King - ARM Linux wrote: > > > It looks like the second patch doesn't yet have the backing from the DT > > > people, which prevents the remainder of the

Re: [RFC PATCH 0/8] CPUs capacity information for heterogeneous systems

2015-12-07 Thread Juri Lelli
On 07/12/15 12:11, Russell King - ARM Linux wrote: > On Mon, Dec 07, 2015 at 12:02:44PM +, Juri Lelli wrote: > > On 23/11/15 14:28, Juri Lelli wrote: > > > Hi all, > > > > > > > Hi again everybody, > > > > thanks a lot to Rob and Vincent for feedback, but, IMHO, we'd need more > >

Re: [RFC PATCH 0/8] CPUs capacity information for heterogeneous systems

2015-12-07 Thread Juri Lelli
On 23/11/15 14:28, Juri Lelli wrote: > Hi all, > Hi again everybody, thanks a lot to Rob and Vincent for feedback, but, IMHO, we'd need more discussion happening on this series to figure out how we move forward; so, this is a ping :-). It's a simple information that we need to figure out how

Re: [RFC PATCH 0/8] CPUs capacity information for heterogeneous systems

2015-12-07 Thread Russell King - ARM Linux
On Mon, Dec 07, 2015 at 12:02:44PM +, Juri Lelli wrote: > On 23/11/15 14:28, Juri Lelli wrote: > > Hi all, > > > > Hi again everybody, > > thanks a lot to Rob and Vincent for feedback, but, IMHO, we'd need more > discussion happening on this series to figure out how we move forward; > so,

Re: [RFC PATCH 0/8] CPUs capacity information for heterogeneous systems

2015-12-07 Thread Russell King - ARM Linux
On Mon, Dec 07, 2015 at 12:36:54PM +, Juri Lelli wrote: > On 07/12/15 12:11, Russell King - ARM Linux wrote: > > It looks like the second patch doesn't yet have the backing from the DT > > people, which prevents the remainder of the patch set progressing. That's > > the sticking point which

[RFC PATCH 0/8] CPUs capacity information for heterogeneous systems

2015-11-23 Thread Juri Lelli
Hi all, ARM systems may be configured to have CPUs with different power/performance characteristics within the same chip. In this case, additional information has to be made available to the kernel (the scheduler in particular) for it to be aware of such differences and take decisions