From patchwork Wed Sep 19 07:42:48 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen Yu X-Patchwork-Id: 10605433 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4B6BC112B for ; Wed, 19 Sep 2018 07:36:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3A9B72B53F for ; Wed, 19 Sep 2018 07:36:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2EB342B994; Wed, 19 Sep 2018 07:36:08 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C79582B53F for ; Wed, 19 Sep 2018 07:36:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730892AbeISNMp (ORCPT ); Wed, 19 Sep 2018 09:12:45 -0400 Received: from mga14.intel.com ([192.55.52.115]:55097 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726972AbeISNMp (ORCPT ); Wed, 19 Sep 2018 09:12:45 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 19 Sep 2018 00:36:06 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.53,393,1531810800"; d="scan'208";a="91368329" Received: from chenyu-desktop.sh.intel.com ([10.239.160.116]) by fmsmga001.fm.intel.com with ESMTP; 19 Sep 2018 00:36:02 -0700 From: Chen Yu To: Thomas Gleixner , "Rafael J. Wysocki" Cc: x86@kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Pavel Machek , Len Brown , Zhimin Gu , Yu Chen Subject: [PATCH 07/12][RFC v3] x86-32, hibernate: Use temp_pgt as the temporary page table Date: Wed, 19 Sep 2018 15:42:48 +0800 Message-Id: <22b6bfd23d24405194930baf88f0ec3fe76ba807.1537275915.git.yu.c.chen@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: References: Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Zhimin Gu This is to reuse the temp_pgt for both 32bit and 64bit system. No functional change. Cc: "Rafael J. Wysocki" Signed-off-by: Zhimin Gu Signed-off-by: Chen Yu Acked-by: Pavel Machek --- arch/x86/power/hibernate_32.c | 2 ++ arch/x86/power/hibernate_asm_32.S | 3 +-- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/x86/power/hibernate_32.c b/arch/x86/power/hibernate_32.c index f82fbd279d08..a44bdada4e4e 100644 --- a/arch/x86/power/hibernate_32.c +++ b/arch/x86/power/hibernate_32.c @@ -156,6 +156,8 @@ asmlinkage int swsusp_arch_resume(void) if (error) return error; + temp_pgt = __pa(resume_pg_dir); + /* We have got enough memory and from now on we cannot recover */ restore_image(); return 0; diff --git a/arch/x86/power/hibernate_asm_32.S b/arch/x86/power/hibernate_asm_32.S index 671d38d0d931..f0627cf30a36 100644 --- a/arch/x86/power/hibernate_asm_32.S +++ b/arch/x86/power/hibernate_asm_32.S @@ -33,8 +33,7 @@ ENDPROC(swsusp_arch_suspend) ENTRY(restore_image) movl mmu_cr4_features, %ecx - movl resume_pg_dir, %eax - subl $__PAGE_OFFSET, %eax + movl temp_pgt, %eax movl %eax, %cr3 jecxz 1f # cr4 Pentium and higher, skip if zero