From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-x242.google.com (mail-pg0-x242.google.com [IPv6:2607:f8b0:400e:c05::242]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3xWJV41LcrzDqZ8 for ; Tue, 15 Aug 2017 00:51:55 +1000 (AEST) Received: by mail-pg0-x242.google.com with SMTP id l64so11056349pge.2 for ; Mon, 14 Aug 2017 07:51:55 -0700 (PDT) Date: Tue, 15 Aug 2017 00:51:40 +1000 From: Nicholas Piggin To: Benjamin Herrenschmidt Cc: Michael Ellerman , linuxppc-dev@lists.ozlabs.org, Suraj Jitindar Singh , kvm-ppc@vger.kernel.org, aneesh.kumar@linux.vnet.ibm.com Subject: Re: [PATCH v2 3/9] powerpc/powernv: Remove real mode access limit for early allocations Message-ID: <20170815005140.65ac7c7a@roar.ozlabs.ibm.com> In-Reply-To: <1502716250.4493.25.camel@au1.ibm.com> References: <20170812113416.15978-1-npiggin@gmail.com> <20170813013346.14002-3-npiggin@gmail.com> <87h8xaqpp8.fsf@concordia.ellerman.id.au> <1502716250.4493.25.camel@au1.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Mon, 14 Aug 2017 23:10:50 +1000 Benjamin Herrenschmidt wrote: > On Mon, 2017-08-14 at 22:49 +1000, Michael Ellerman wrote: > > Nicholas Piggin writes: > > > > > This removes the RMA limit on powernv platform, which constrains > > > early allocations such as PACAs and stacks. There are still other > > > restrictions that must be followed, such as bolted SLB limits, but > > > real mode addressing has no constraints. > > For radix, should we consider making the PACAs chip/node local ? Yes that's the main goal of the series. I had NUMAization patches at the end. Just dropped them for now because some of them need toplogy information that's not available (that's why I was asking about moving unflattening earlier in boot, but we may be able to move allocations later too). Thanks, Nick