RE: [PATCH] omap: Fix sev instruction usage for multi-omap

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> -----Original Message-----
> From: Tony Lindgren [mailto:tony@xxxxxxxxxxx] 
> Sent: Friday, August 06, 2010 12:35 PM
> To: Kevin Hilman
> Cc: Nayak, Rajendra; linux-omap@xxxxxxxxxxxxxxx
> Subject: [PATCH] omap: Fix sev instruction usage for multi-omap
> 
> * Tony Lindgren <tony@xxxxxxxxxxx> [100806 09:55]:
> > * Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx> [100806 01:48]:
> > > 
> > > > Also with omap_4430sdp_defconfig, I see these compile errors
> > > > arch/arm/kernel/entry-armv.S: Assembler messages:
> > > > arch/arm/kernel/entry-armv.S:48: Error: bad instruction 
> `test_for_ipi r0,r6,r5,lr'
> > > > arch/arm/kernel/entry-armv.S:48: Error: bad instruction 
> `test_for_ipi r0,r6,r5,lr'
> > > > make[1]: *** [arch/arm/kernel/entry-armv.o] Error 1
> > > > make: *** [arch/arm/kernel] Error 2
> > > >
> > > > Doing a git log on entry-armv.S shows me a top commit 
> which might
> > > > be an issue if conflicts are'nt resolved well.
> > > >
> > > > commit 7b70c4275f28702b76b273c8534c38f8313812e9
> > > > Merge: ceb0885... a20df56...
> > > > Author: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
> > > > Date:   Sat Jul 31 14:20:16 2010 +0100
> > > >
> > > >     Merge branch 'devel-stable' into devel
> > > >
> > > >     Conflicts:
> > > >         arch/arm/kernel/entry-armv.S
> > > >         arch/arm/kernel/setup.c
> > > >         arch/arm/mm/init.c
> > > >
> > > > Maybe this is an issue in Tony's for-next as well. 
> Haven't tested
> > > > it though.
> > > 
> > > Yeah, I'm guessing this an issue in for-next, and 
> probably l-o master
> > > too.
> > 
> > Noticed that with omap3_defconfig with CONFIG_SMP enabled. Does the
> > following work for you?

With this patch, I went past the previous break but hit this

/tmp/ccUTrImV.s: Assembler messages:
/tmp/ccUTrImV.s:140: Error: selected processor does not support `sev'
make[1]: *** [arch/arm/mach-omap2/omap-smp.o] Error 1
make: *** [arch/arm/mach-omap2] Error 2

> 
> Here's a related patch that allows CONFIG_SMP to compile with
> omap3_defconfig. Booting still won't work before some arm generic
> code is changed.

Now with this, omap4 build using omap_4430sdp_defconfig seems to
go through, but like you said, boot is still an issue.

regards,
Rajendra

> 
> Regards,
> 
> Tony
> --
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