From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Hellstrom Date: Wed, 20 Apr 2011 08:35:55 +0000 Subject: Re: [PATCH 6/7] sparc32,leon: operate on boot-cpu IRQ controller Message-Id: <4DAE9AEB.9090808@gaisler.com> List-Id: References: <1303229239-21551-6-git-send-email-daniel@gaisler.com> In-Reply-To: <1303229239-21551-6-git-send-email-daniel@gaisler.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: sparclinux@vger.kernel.org David Miller wrote: >From: Daniel Hellstrom >Date: Wed, 20 Apr 2011 10:12:25 +0200 > > > >>Sorry I meant the UP 32-bit SUNs, some if not all SMP 32-bit SUNs >>apparently use the boot_cpu_id Sam is talking about. Have you tried >>booting on CPU1 with a UP Linux kernel on the SS1000 machine? >> >> > >Regardless, we should make it work. > > I totally agree with you. And it is important for the LEON family as well. New quad-core LEONs are designed to be able to run different operating systems on different CPUs, or two linux instances in parallel. So the hardware supports it, and I believe the SUNs do too. >It was terrible when I had to fix this on sparc64. > > I think it is a quite big job, and not really related. I can drop this cleanup patch now and make a proper implementation later this year. What I want is get more important stuff working with genirq first. Daniel