Re: [PATCH 05/11] powerpc/smp: Dont assume l2-cache to be superset of sibling

2020-07-20 Thread Gautham R Shenoy
Hi Srikar, On Mon, Jul 20, 2020 at 12:15:04PM +0530, Srikar Dronamraju wrote: > * Gautham R Shenoy [2020-07-17 11:30:11]: > > > Hi Srikar, > > > > On Tue, Jul 14, 2020 at 10:06:18AM +0530, Srikar Dronamraju wrote: > > > Current code assumes that cpumask of cpus sharing a l2-cache mask will > >

Re: [PATCH 05/11] powerpc/smp: Dont assume l2-cache to be superset of sibling

2020-07-19 Thread Srikar Dronamraju
* Gautham R Shenoy [2020-07-17 11:30:11]: > Hi Srikar, > > On Tue, Jul 14, 2020 at 10:06:18AM +0530, Srikar Dronamraju wrote: > > Current code assumes that cpumask of cpus sharing a l2-cache mask will > > always be a superset of cpu_sibling_mask. > > > > Lets stop that assumption. > > > > Cc:

Re: [PATCH 05/11] powerpc/smp: Dont assume l2-cache to be superset of sibling

2020-07-16 Thread Gautham R Shenoy
Hi Srikar, On Tue, Jul 14, 2020 at 10:06:18AM +0530, Srikar Dronamraju wrote: > Current code assumes that cpumask of cpus sharing a l2-cache mask will > always be a superset of cpu_sibling_mask. > > Lets stop that assumption. > > Cc: linuxppc-dev > Cc: Michael Ellerman > Cc: Nick Piggin > Cc:

Re: [PATCH 05/11] powerpc/smp: Dont assume l2-cache to be superset of sibling

2020-07-13 Thread Srikar Dronamraju
* Oliver O'Halloran [2020-07-14 15:40:09]: > On Tue, Jul 14, 2020 at 2:45 PM Srikar Dronamraju > wrote: > > > > Current code assumes that cpumask of cpus sharing a l2-cache mask will > > always be a superset of cpu_sibling_mask. > > > > Lets stop that assumption. > > It's been a while since I l

Re: [PATCH 05/11] powerpc/smp: Dont assume l2-cache to be superset of sibling

2020-07-13 Thread Oliver O'Halloran
On Tue, Jul 14, 2020 at 2:45 PM Srikar Dronamraju wrote: > > Current code assumes that cpumask of cpus sharing a l2-cache mask will > always be a superset of cpu_sibling_mask. > > Lets stop that assumption. It's been a while since I looked, but I'm pretty sure the scheduler requires child domains

[PATCH 05/11] powerpc/smp: Dont assume l2-cache to be superset of sibling

2020-07-13 Thread Srikar Dronamraju
Current code assumes that cpumask of cpus sharing a l2-cache mask will always be a superset of cpu_sibling_mask. Lets stop that assumption. Cc: linuxppc-dev Cc: Michael Ellerman Cc: Nick Piggin Cc: Oliver OHalloran Cc: Nathan Lynch Cc: Michael Neuling Cc: Anton Blanchard Cc: Gautham R Shen