From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9A686C982EA for ; Wed, 23 Sep 2026 05:42:35 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5AD2010EF09; Wed, 23 Sep 2026 05:42:35 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.b="DbWlSziG"; dkim-atps=neutral Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id 88CF610EF09 for ; Wed, 23 Sep 2026 05:42:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1790142153; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Owanqqlm2F+zzhHdgO4ILjDMn6+LQqunLulaO+aFb4U=; b=DbWlSziGQrXgrL459BxU0hmKggBnq70MGLsn5DAetOpdg60RGU2jK9NDGp9MIHC6D7qLFC Y+6owghp4UdvETppin9eaSi3v2HLdc37F6uaYCmfU2MNk33PzevRConLvWj0Xop3Cmn56q RbZ2xIzSsyeOFjIXdUWaQFHCMi/D1XY= Received: from mail-lj1-f197.google.com (mail-lj1-f197.google.com [209.85.208.197]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-589-2UeySExPN4mvPL2IdhWc3g-1; Wed, 23 Sep 2026 01:42:31 -0400 X-MC-Unique: 2UeySExPN4mvPL2IdhWc3g-1 X-Mimecast-MFC-AGG-ID: 2UeySExPN4mvPL2IdhWc3g_1790142150 Received: by mail-lj1-f197.google.com with SMTP id 38308e7fff4ca-39d93d95a21so3512461fa.0 for ; Tue, 22 Sep 2026 22:42:31 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1790142150; x=1790746950; h=content-transfer-encoding:content-type:in-reply-to:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=Owanqqlm2F+zzhHdgO4ILjDMn6+LQqunLulaO+aFb4U=; b=qFo9UvtXW+JY6bePft4TvaTxwzD8jTa80RhJwRR539lCe328bdYOFRh92aJvHHtxcT 2g0DmbQy69KOdOw9NaxuMM/B1G3xKO4Q5LKbF+DNG/BnMNkzl2DL+rNCBP1vVOt8ZMc4 0eRZc+MgxdayQakECM+FW9YG5kw0PdBXlKsn9ZVfcgH5/EmWMPxALCcX+UpbmD/AnaeI p/7bA7yT/tXg0IrV7ZxR7UNu7a7Sqx/WpjC8dXbNb7TLxfrBXFu8AHIBGWvkqG53Fmv4 MneL4GhtXst1MAPN++7l/Z2o90gmahughDKf7VHFlj8AteYFQ8J2BBo6snXPLv8skxJ0 TNgA== X-Forwarded-Encrypted: i=1; AKwUvBy96yxxkPK7EqpuZDgovPphRu2L93Kb0X0/kaE1ArEaTb+pNA55IOSGzWrMh37ngVtrULAiMhPOrA==@lists.freedesktop.org X-Gm-Message-State: AFuF++m5zRv0Rbe32ZpAfn/WcXNuvQxaJ6qtVMxsS3RHljJRntDKWLok wjFd4gzJ376NzRxaCyxmrw10KwZp36hrtDHc+77LT4xuM9EBGQuYmTy9Ex5/vvY6lXERAjKIPi0 8GXchvvJlMcLogvALeAOGstyFKID1f/Sfljvs6ZV5g1Nf3o0H/Tg6We9Gs0+yO984RRA= X-Gm-Gg: AYBFou3MkUllzM1eWniUAnOlhgQqmftzwJjmoDcVHgTorK/5avlDGRuTPcKj3faz6BC sZ3i99qegu0FBbHYvusrND+4u9kBTTF3Br07PD9xjNGlCo79E0ncyX4BGktDlOMY/4b4ZqqICR4 iAjLdB9lK61ryH0q5PatL8oGN4IewIwKis84WT6CTL5CA6zNGvTJPuj2M2d70g4QFjTwB5G8VPZ H1314x3hty+iQM7dH4rzQteiM+YdaPWC9dsOT+OK3TxCdhXwvT8z6p8MKv2VLYPxI2OQycLMoKj HsZqw8G2le0jUIPgVxAZcVopaZj75+gbMSirlemk6BKECPkPZAMDPPEwL4DtIfIQ7/nXXp/WUxK YIo+PLcqPh3WX3yZMaOjkcIobRGjklCk= X-Received: by 2002:a2e:bc0a:0:b0:3a5:e541:4205 with SMTP id 38308e7fff4ca-3a630525d38mr3157981fa.0.1790142150007; Tue, 22 Sep 2026 22:42:30 -0700 (PDT) X-Received: by 2002:a2e:bc0a:0:b0:3a5:e541:4205 with SMTP id 38308e7fff4ca-3a630525d38mr3157781fa.0.1790142149515; Tue, 22 Sep 2026 22:42:29 -0700 (PDT) Received: from [192.168.1.86] (89-27-86-246.bb.dnainternet.fi. [89.27.86.246]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-3a62f4f10b0sm3956141fa.8.2026.09.22.22.42.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 22 Sep 2026 22:42:28 -0700 (PDT) Message-ID: <8523ee92-04c1-4e52-a418-a3ab110bca38@redhat.com> Date: Wed, 23 Sep 2026 08:42:27 +0300 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v14 01/12] mm/Kconfig: changes for migrate on fault for device pages To: Balbir Singh , linux-mm@kvack.org Cc: dri-devel@lists.freedesktop.org, intel-xe@lists.freedesktop.org, linux-kernel@vger.kernel.org, David Hildenbrand , Jason Gunthorpe , Leon Romanovsky , Alistair Popple , Zi Yan , Matthew Brost , Andrew Morton , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko References: <20260922053421.4092027-1-mpenttil@redhat.com> <20260922053421.4092027-2-mpenttil@redhat.com> From: =?UTF-8?Q?Mika_Penttil=C3=A4?= In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: 555R6kHJTGDNLdki6ik05hIpxKtYJpS161DZ_xLo6CM_1790142150 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" On 9/23/26 01:27, Balbir Singh wrote: > On 9/22/26 3:34 PM, mpenttil@redhat.com wrote: >> From: Mika Penttilä >> >> HMM depends on MMU notifiers. With the unified HMM/migrate_device >> page table walk migrate_device needs HMM enabled. >> Enable them explicitly to avoid breaking random configs. >> >> Cc: Andrew Morton >> Cc: David Hildenbrand >> Cc: Lorenzo Stoakes >> Cc: "Liam R. Howlett" >> Cc: Vlastimil Babka >> Cc: Mike Rapoport >> Cc: Suren Baghdasaryan >> Cc: Michal Hocko >> Signed-off-by: Mika Penttilä >> Acked-by: David Hildenbrand (Arm) >> --- >> mm/Kconfig | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/mm/Kconfig b/mm/Kconfig >> index 604c58199acb..b7a485beb9a7 100644 >> --- a/mm/Kconfig >> +++ b/mm/Kconfig >> @@ -687,6 +687,7 @@ config MIGRATION >> >> config DEVICE_MIGRATION >> def_bool MIGRATION && ZONE_DEVICE >> + select HMM_MIRROR >> >> config ARCH_ENABLE_HUGEPAGE_MIGRATION >> bool > > Acked-by: Balbir Singh Thanks Balbir!