Re: [RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-16 Thread Matt Sealey
Hi Rob, On Thu, Apr 16, 2015 at 12:17 PM, Rob Clark wrote: > On Thu, Apr 16, 2015 at 11:21 AM, Catalin Marinas > wrote: > >> But I'm definitely going to discourage companies like Qualcomm >> deliberately ignoring the existing booting protocols while trying to get >> their code upstream. This pat

Re: [RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-16 Thread Catalin Marinas
On Thu, Apr 16, 2015 at 01:17:32PM -0400, Rob Clark wrote: > On Thu, Apr 16, 2015 at 11:21 AM, Catalin Marinas > wrote: > > On Wed, Apr 15, 2015 at 11:01:17AM -0400, Rob Clark wrote: > >> There are folks who are working to get saner, more-upstream kernels > >> working on devices.. and improving ke

Re: [RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-16 Thread Rob Clark
On Thu, Apr 16, 2015 at 11:21 AM, Catalin Marinas wrote: > On Wed, Apr 15, 2015 at 11:01:17AM -0400, Rob Clark wrote: >> On Wed, Apr 15, 2015 at 9:34 AM, Catalin Marinas >> wrote: >> > On Tue, Apr 14, 2015 at 05:48:48PM -0400, Rob Clark wrote: >> >> Just speaking as an outsider to this topic, but

Re: [RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-16 Thread Catalin Marinas
On Wed, Apr 15, 2015 at 11:01:17AM -0400, Rob Clark wrote: > On Wed, Apr 15, 2015 at 9:34 AM, Catalin Marinas > wrote: > > On Tue, Apr 14, 2015 at 05:48:48PM -0400, Rob Clark wrote: > >> Just speaking as an outsider to this topic, but seems like most/all > >> tablets/phones/etc ship with signed fi

Re: [RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-15 Thread Lorenzo Pieralisi
On Wed, Apr 15, 2015 at 05:17:59PM +0100, Lina Iyer wrote: > On Tue, Apr 14 2015 at 16:32 -0600, Lorenzo Pieralisi wrote: > >On Tue, Apr 14, 2015 at 03:21:17PM +0100, Kumar Gala wrote: > > > >[...] > > > >> > Looking beyond this set of patches, I can foresee that you won't care > >> > about the gen

Re: [RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-15 Thread Lina Iyer
On Tue, Apr 14 2015 at 16:32 -0600, Lorenzo Pieralisi wrote: On Tue, Apr 14, 2015 at 03:21:17PM +0100, Kumar Gala wrote: [...] > Looking beyond this set of patches, I can foresee that you won't care > about the generic arm64 cpuidle driver either, or more precisely the > separation between cpu

Re: [RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-15 Thread Rob Clark
On Wed, Apr 15, 2015 at 9:34 AM, Catalin Marinas wrote: > On Tue, Apr 14, 2015 at 05:48:48PM -0400, Rob Clark wrote: >> Just speaking as an outsider to this topic, but seems like most/all >> tablets/phones/etc ship with signed firmware. Which means for most of >> the population, upgrading the fir

Re: [RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-15 Thread Catalin Marinas
On Tue, Apr 14, 2015 at 09:21:17AM -0500, Kumar Gala wrote: > On Apr 13, 2015, at 4:41 AM, Catalin Marinas wrote: > > On Fri, Apr 10, 2015 at 02:06:33PM -0500, Kumar Gala wrote: > >> On Apr 10, 2015, at 11:10 AM, Catalin Marinas > >> wrote: > >> Qualcomm choose for whatever reasons to not implem

Re: [RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-15 Thread Catalin Marinas
On Tue, Apr 14, 2015 at 05:48:48PM -0400, Rob Clark wrote: > Just speaking as an outsider to this topic, but seems like most/all > tablets/phones/etc ship with signed firmware. Which means for most of > the population, upgrading the firmware to a new version which did > support the standard (assum

Re: [RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-14 Thread Lorenzo Pieralisi
On Tue, Apr 14, 2015 at 03:21:17PM +0100, Kumar Gala wrote: [...] > > Looking beyond this set of patches, I can foresee that you won't care > > about the generic arm64 cpuidle driver either, or more precisely the > > separation between cpuidle subsystem+driver and the SoC-specific > > back-end (c

Re: [RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-14 Thread Rob Clark
On Tue, Apr 14, 2015 at 5:17 PM, Catalin Marinas wrote: > On Tue, Apr 14, 2015 at 02:49:04PM -0500, Kumar Gala wrote: >> On Apr 14, 2015, at 11:36 AM, Mark Rutland wrote: >> > On Fri, Apr 10, 2015 at 11:05:29AM +0100, Catalin Marinas wrote: >> >> On Thu, Apr 09, 2015 at 12:37:06PM -0500, Kumar Ga

Re: [RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-14 Thread Catalin Marinas
On Tue, Apr 14, 2015 at 02:49:04PM -0500, Kumar Gala wrote: > On Apr 14, 2015, at 11:36 AM, Mark Rutland wrote: > > On Fri, Apr 10, 2015 at 11:05:29AM +0100, Catalin Marinas wrote: > >> On Thu, Apr 09, 2015 at 12:37:06PM -0500, Kumar Gala wrote: > >>> This patch set adds support for SMP boot on th

Re: [RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-14 Thread Kumar Gala
> On Apr 14, 2015, at 11:36 AM, Mark Rutland wrote: > > On Fri, Apr 10, 2015 at 11:05:29AM +0100, Catalin Marinas wrote: >> On Thu, Apr 09, 2015 at 12:37:06PM -0500, Kumar Gala wrote: >>> This patch set adds support for SMP boot on the MSM8x16 family of Qualcomm >>> SoCs. >>> >>> To support SM

Re: [RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-14 Thread Mark Rutland
On Fri, Apr 10, 2015 at 11:05:29AM +0100, Catalin Marinas wrote: > On Thu, Apr 09, 2015 at 12:37:06PM -0500, Kumar Gala wrote: > > This patch set adds support for SMP boot on the MSM8x16 family of Qualcomm > > SoCs. > > > > To support SMP on the MSM8x16 SoCs we need to add ARMv8/64-bit SCM > > i

Re: [RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-14 Thread Mark Rutland
On Tue, Apr 14, 2015 at 03:44:11PM +0100, Kumar Gala wrote: > > > On Apr 14, 2015, at 9:21 AM, Kumar Gala wrote: > > > > So please come up with proper technical arguments rather than the kernel > should take whatever SoC vendors dreamt of. > >>> > >>> There is no technical argum

Re: [RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-14 Thread Kumar Gala
> On Apr 14, 2015, at 9:21 AM, Kumar Gala wrote: > So please come up with proper technical arguments rather than the kernel should take whatever SoC vendors dreamt of. >>> >>> There is no technical argument to be made. This is about the >>> community and you as maintainer wanti

Re: [RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-14 Thread Kumar Gala
> On Apr 13, 2015, at 4:41 AM, Catalin Marinas wrote: > > On Fri, Apr 10, 2015 at 02:06:33PM -0500, Kumar Gala wrote: >> On Apr 10, 2015, at 11:10 AM, Catalin Marinas >> wrote: >>> On Fri, Apr 10, 2015 at 10:24:46AM -0500, Kumar Gala wrote: On Apr 10, 2015, at 5:05 AM, Catalin Marinas >

Re: [RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-13 Thread Catalin Marinas
On Fri, Apr 10, 2015 at 02:06:33PM -0500, Kumar Gala wrote: > On Apr 10, 2015, at 11:10 AM, Catalin Marinas wrote: > > On Fri, Apr 10, 2015 at 10:24:46AM -0500, Kumar Gala wrote: > >> On Apr 10, 2015, at 5:05 AM, Catalin Marinas > >> wrote: > >>> On Thu, Apr 09, 2015 at 12:37:06PM -0500, Kumar G

[RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-10 Thread Kumar Gala
This patch set adds support for SMP boot on the MSM8x16 family of Qualcomm SoCs. To support SMP on the MSM8x16 SoCs we need to add ARMv8/64-bit SCM interfaces to setup the boot/release addresses for the secondary CPUs. In addition we need a uniquie set of cpu ops. I'm aware the desired methods f

[RFC PATCH 0/5] Add smp booting support for Qualcomm ARMv8 SoCs

2015-04-09 Thread Kumar Gala
This patch set adds support for SMP boot on the MSM8x16 family of Qualcomm SoCs. To support SMP on the MSM8x16 SoCs we need to add ARMv8/64-bit SCM interfaces to setup the boot/release addresses for the secondary CPUs. In addition we need a uniquie set of cpu ops. I'm aware the desired methods f