From patchwork Tue Jul 23 17:52:31 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Feng Kan X-Patchwork-Id: 2832109 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id E1A099F4D4 for ; Tue, 23 Jul 2013 17:53:37 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id DB7A32022D for ; Tue, 23 Jul 2013 17:53:36 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 855FE20217 for ; Tue, 23 Jul 2013 17:53:35 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1V1gmD-00065G-4m; Tue, 23 Jul 2013 17:53:33 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1V1gmA-0002Y7-Rk; Tue, 23 Jul 2013 17:53:30 +0000 Received: from [192.195.68.30] (helo=denmail01.apm.com) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1V1gm6-0002X3-CO for linux-arm-kernel@lists.infradead.org; Tue, 23 Jul 2013 17:53:27 +0000 Received: from amcc.com (svdclab154.amcc.com [10.66.12.74]) by denmail01.apm.com (8.13.8/8.13.8) with ESMTP id r6NHqiKL010691; Tue, 23 Jul 2013 11:52:46 -0600 Received: (from fkan@localhost) by amcc.com (8.13.8/8.12.2/Submit) id r6NHqaWT004134; Tue, 23 Jul 2013 10:52:36 -0700 From: Feng Kan To: fkan@apm.com, ksankaran@apm.com, vkale@apm.com, lho@apm.com, Catalin.Marinas@arm.com, linux-arm-kernel@lists.infradead.org Subject: [PATCH] arm64: Change kernel stack size to 16K. Date: Tue, 23 Jul 2013 10:52:31 -0700 Message-Id: <1374601951-4091-1-git-send-email-fkan@apm.com> X-Mailer: git-send-email 1.7.6.1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130723_135326_497656_92CD24F0 X-CRM114-Status: UNSURE ( 8.94 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -1.1 (-) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Written by Catalin Marinas, tested by APM on storm platform. This is needed because of the failures encountered when running SpecWeb benchmark test. Signed-off-by: Feng Kan Acked-by: Kumar Sankaran --- arch/arm64/include/asm/thread_info.h | 4 ++-- arch/arm64/kernel/entry.S | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm64/include/asm/thread_info.h b/arch/arm64/include/asm/thread_info.h index 3659e46..23a3c47 100644 --- a/arch/arm64/include/asm/thread_info.h +++ b/arch/arm64/include/asm/thread_info.h @@ -24,10 +24,10 @@ #include #ifndef CONFIG_ARM64_64K_PAGES -#define THREAD_SIZE_ORDER 1 +#define THREAD_SIZE_ORDER 2 #endif -#define THREAD_SIZE 8192 +#define THREAD_SIZE 16384 #define THREAD_START_SP (THREAD_SIZE - 16) #ifndef __ASSEMBLY__ diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S index 1d13142..6ad781b 100644 --- a/arch/arm64/kernel/entry.S +++ b/arch/arm64/kernel/entry.S @@ -121,7 +121,7 @@ .macro get_thread_info, rd mov \rd, sp - and \rd, \rd, #~((1 << 13) - 1) // top of 8K stack + and \rd, \rd, #~(THREAD_SIZE - 1) // top of stack .endm /*