From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757232AbdJKNxM (ORCPT ); Wed, 11 Oct 2017 09:53:12 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:56284 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752486AbdJKNxF (ORCPT ); Wed, 11 Oct 2017 09:53:05 -0400 From: Laurent Dufour To: paulmck@linux.vnet.ibm.com, peterz@infradead.org, akpm@linux-foundation.org, kirill@shutemov.name, ak@linux.intel.com, mhocko@kernel.org, dave@stgolabs.net, jack@suse.cz, Matthew Wilcox , benh@kernel.crashing.org, mpe@ellerman.id.au, paulus@samba.org, Thomas Gleixner , Ingo Molnar , hpa@zytor.com, Will Deacon , Sergey Senozhatsky , Andrea Arcangeli , Alexei Starovoitov Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, haren@linux.vnet.ibm.com, khandual@linux.vnet.ibm.com, npiggin@gmail.com, bsingharora@gmail.com, Tim Chen , linuxppc-dev@lists.ozlabs.org, x86@kernel.org Subject: [PATCH v5 02/22] powerpc/mm: Define CONFIG_SPF Date: Wed, 11 Oct 2017 15:52:26 +0200 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1507729966-10660-1-git-send-email-ldufour@linux.vnet.ibm.com> References: <1507729966-10660-1-git-send-email-ldufour@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 17101113-0040-0000-0000-000003E1C78E X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17101113-0041-0000-0000-000025E3D453 Message-Id: <1507729966-10660-3-git-send-email-ldufour@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-10-11_05:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000 definitions=main-1710110191 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Define CONFIG_SPF for BOOK3S_64 and SMP. This enables the Speculative Page Fault handler. Support is only provide for BOOK3S_64 currently because: - require CONFIG_PPC_STD_MMU because checks done in set_access_flags_filter() - require BOOK3S because we can't support for book3e_hugetlb_preload() called by update_mmu_cache() Signed-off-by: Laurent Dufour --- arch/powerpc/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 809c468edab1..661ba5bcf60e 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -1207,6 +1207,10 @@ endif config ARCH_RANDOM def_bool n +config SPF + def_bool y + depends on PPC_BOOK3S_64 && SMP + source "net/Kconfig" source "drivers/Kconfig" -- 2.7.4