From mboxrd@z Thu Jan 1 00:00:00 1970 From: catalin.marinas@arm.com (Catalin Marinas) Date: Mon, 06 Sep 2010 10:28:53 +0100 Subject: [PATCH 0/4] Hacks to allow booting ARM SMP kernel on UP ARMv7 In-Reply-To: <20100902161659.GJ11597@atomide.com> References: <20100817135205.GC20325@n2100.arm.linux.org.uk> <20100817141210.GJ12184@atomide.com> <20100817154035.GD20325@n2100.arm.linux.org.uk> <20100819073810.GR12184@atomide.com><4C6CFBAF.6020407@canonical.com> <20100819095705.GU12184@atomide.com> <20100819102025.GA32151@n2100.arm.linux.org.uk> <20100820120622.GL25742@atomide.com><20100830225527.GC11597@atomide.com> <20100902133637.GJ26319@n2100.arm.linux.org.uk> <20100902161659.GJ11597@atomide.com> Message-ID: <1283765333.1926.2.camel@e102109-lin.cambridge.arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, 2010-09-02 at 17:16 +0100, Tony Lindgren wrote: > * Russell King - ARM Linux [100902 06:29]: > > On Mon, Aug 30, 2010 at 03:55:27PM -0700, Tony Lindgren wrote: > > > * Tony Lindgren [100820 04:59]: > > > > * Russell King - ARM Linux [100819 13:13]: > > > > > On Thu, Aug 19, 2010 at 12:57:06PM +0300, Tony Lindgren wrote: > > > > > > Looks like something is not quite right with smp_on_up part of __fixup_smp, > > > > > > returning early before smp_on_up does not produce that. > > > > > > > > > > It's probably overwriting some register it shouldn't be. I might be > > > > > able to look at this sometime during the coming week... assuming that > > > > > the weather is as bad as they forecast and I have 'net connectivity. > > > > > > This seems to fix it. > > > > Thanks, merged that into my original patch - so here it is again with > > everything updated. > > Your patch sure makes things simpler! The problem still is the > V6 vs V7 SMP code though. I haven't followed your patches closely but can we restrict the ARMv6 SMP/UP support to only those cores that have TEX remapping (most of them probably)? -- Catalin