ARM Kernel autobuilder

[horms@verge.net.au (Simon Horman)]

On Fri, Jul 23, 2010 at 10:59:18AM +0530, Shilimkar, Santosh wrote:
> > -----Original Message-----
> > From: Simon Horman [mailto:horms at verge.net.au]
> > Sent: Friday, July 23, 2010 9:35 AM
> > To: Shilimkar, Santosh
> > Cc: Russell King - ARM Linux; Vincent Sanders; linux-arm-
> > kernel at lists.infradead.org
> > Subject: Re: ARM Kernel autobuilder
> > 
> > On Thu, Jul 22, 2010 at 07:11:05PM +0530, Shilimkar, Santosh wrote:
> > > On Thu, Jul 22, 1010 at  6:54 PM, Russell King - ARM Linux wrote:
> > > > On Thu, Jul 22, 2010 at 12:14:12PM +0100, Vincent Sanders wrote:
> > > > > Can I propose now the omap3_defconfig is working that the duplicate
> > > > > defconfigs are removed, these are:
> > > > >
> > > > > cm_t35_defconfig
> > > > > devkit8000_defconfig
> > > > > igep0020_defconfig
> > > > > rx51_defconfig
> > > > > omap3_beagle_defconfig
> > > > > omap3_evm_defconfig
> > > > > am3517_evm_defconfig
> > > > > omap_4430sdp_defconfig
> > > > > omap_ldp_defconfig
> > > > > omap3_pandora_defconfig
> > > > > omap3_stalker_lks_defconfig
> > > > > omap_apollon_2420_defconfig
> > > > > omap_h4_2420_defconfig
> > > > > omap_2430sdp_defconfig
> > > > > omap_3430sdp_defconfig
> > > > > omap_3630sdp_defconfig
> > > > > omap3_touchbook_defconfig
> > > > > omap_zoom2_defconfig
> > > > > omap_zoom3_defconfig
> > > > > overo_defconfig
> > > > >
> > > > > This would reduce the default configuration count to 156
> > > > > configurations.
> > > >
> > > > Linus lately appears to be more relaxed about this, and is in the mood
> > > > for improvements in the situation, so yes this would be an
> > improvement.
> > > > It certainly would make things a little smaller, and allow kautobuild
> > > > to run faster.
> > > >
> > > omap_4430sdp_defconfig is not duplicate. Please keep
> > omap_4430sdp_defconfig because omap3_defconfig doen't includes SMP build.
> > 
> > Are there any other reasons to keep omap_4430sdp_defconfig?
> > SMP seems to be a weak argument to me, after all if I peek in to
> > arch/x86/configs/ I don't see SMP and non-SMP variants.
> OMAP4 is way different from OMAP3.
> 
> OMAP3:
> 	Coretex-A8 UP
> 	Internal L2 cache
> 	DSP System
> 	IVHA 
> OMAP4 - 
> 	Cortex-A9, Dual Core 
> 	External L2 cache ( PL310)
> 	New Interrupt controller(GIC)
> 	New Memory subsystem (EMIF)
> 	3 Additional co-procesors
> 	New DSS
> 	IVHA2
> 
> Except ARMv7 architecture, there is not much common between these two SOCs

Thanks for the clarification.

Also, as Russell pointed out (which I didn't know),
you can't boot an SMP kernel on a UP machine. So I
now understand the significance of your original
SMP build point.