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[209.132.183.28]) by mx.google.com with ESMTPS id z37si7931377qvc.90.2019.05.01.11.38.57 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 01 May 2019 11:38:57 -0700 (PDT) Received-SPF: pass (google.com: domain of jglisse@redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; Authentication-Results: mx.google.com; spf=pass (google.com: domain of jglisse@redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=jglisse@redhat.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 935233082E6A; Wed, 1 May 2019 18:38:56 +0000 (UTC) Received: from redhat.com (ovpn-126-26.rdu2.redhat.com [10.10.126.26]) by smtp.corp.redhat.com (Postfix) with ESMTPS id C3D031001DE1; Wed, 1 May 2019 18:38:54 +0000 (UTC) Date: Wed, 1 May 2019 14:38:51 -0400 From: Jerome Glisse To: Andrew Morton Cc: linux-kernel@vger.kernel.org, Guenter Roeck , Leon Romanovsky , Jason Gunthorpe , Ralph Campbell , linux-mm@kvack.org, John Hubbard Subject: Re: [PATCH] mm/hmm: add ARCH_HAS_HMM_MIRROR ARCH_HAS_HMM_DEVICE Kconfig Message-ID: <20190501183850.GA4018@redhat.com> References: <20190417211141.17580-1-jglisse@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20190417211141.17580-1-jglisse@redhat.com> User-Agent: Mutt/1.11.4 (2019-03-13) X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.46]); Wed, 01 May 2019 18:38:56 +0000 (UTC) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Andrew just the patch that would be nice to get in 5.2 so i can fix device driver Kconfig before doing the real update to mm HMM Kconfig On Wed, Apr 17, 2019 at 05:11:41PM -0400, jglisse@redhat.com wrote: > From: Jérôme Glisse > > This patch just add 2 new Kconfig that are _not use_ by anyone. I check > that various make ARCH=somearch allmodconfig do work and do not complain. > This new Kconfig need to be added first so that device driver that do > depend on HMM can be updated. > > Once drivers are updated then i can update the HMM Kconfig to depends > on this new Kconfig in a followup patch. > > Signed-off-by: Jérôme Glisse > Cc: Guenter Roeck > Cc: Leon Romanovsky > Cc: Jason Gunthorpe > Cc: Andrew Morton > Cc: Ralph Campbell > Cc: John Hubbard > --- > mm/Kconfig | 16 ++++++++++++++++ > 1 file changed, 16 insertions(+) > > diff --git a/mm/Kconfig b/mm/Kconfig > index 25c71eb8a7db..daadc9131087 100644 > --- a/mm/Kconfig > +++ b/mm/Kconfig > @@ -676,6 +676,22 @@ config ZONE_DEVICE > > If FS_DAX is enabled, then say Y. > > +config ARCH_HAS_HMM_MIRROR > + bool > + default y > + depends on (X86_64 || PPC64) > + depends on MMU && 64BIT > + > +config ARCH_HAS_HMM_DEVICE > + bool > + default y > + depends on (X86_64 || PPC64) > + depends on MEMORY_HOTPLUG > + depends on MEMORY_HOTREMOVE > + depends on SPARSEMEM_VMEMMAP > + depends on ARCH_HAS_ZONE_DEVICE > + select XARRAY_MULTI > + > config ARCH_HAS_HMM > bool > default y > -- > 2.20.1 >