From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3zjcRc6PK7zF1MH for ; Sat, 17 Feb 2018 02:26:04 +1100 (AEDT) Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w1GFNRpm135003 for ; Fri, 16 Feb 2018 10:26:02 -0500 Received: from e06smtp15.uk.ibm.com (e06smtp15.uk.ibm.com [195.75.94.111]) by mx0a-001b2d01.pphosted.com with ESMTP id 2g603bcth6-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Fri, 16 Feb 2018 10:26:01 -0500 Received: from localhost by e06smtp15.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 16 Feb 2018 15:25:59 -0000 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 , kemi.wang@intel.com, sergey.senozhatsky.work@gmail.com, Daniel Jordan 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 v8 03/24] powerpc/mm: Define CONFIG_SPECULATIVE_PAGE_FAULT Date: Fri, 16 Feb 2018 16:25:17 +0100 In-Reply-To: <1518794738-4186-1-git-send-email-ldufour@linux.vnet.ibm.com> References: <1518794738-4186-1-git-send-email-ldufour@linux.vnet.ibm.com> Message-Id: <1518794738-4186-4-git-send-email-ldufour@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Define CONFIG_SPECULATIVE_PAGE_FAULT 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 | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 73ce5dd07642..acf2696a6505 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -233,6 +233,7 @@ config PPC select OLD_SIGACTION if PPC32 select OLD_SIGSUSPEND select SPARSE_IRQ + select SPECULATIVE_PAGE_FAULT if PPC_BOOK3S_64 && SMP select SYSCTL_EXCEPTION_TRACE select VIRT_TO_BUS if !PPC64 # -- 2.7.4