From patchwork Thu May 7 14:59:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ira Weiny X-Patchwork-Id: 11534051 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2313D139F for ; Thu, 7 May 2020 15:00:18 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 06A66208DB for ; Thu, 7 May 2020 15:00:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 06A66208DB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7EA4E6E9DA; Thu, 7 May 2020 15:00:12 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id 842DB6E9D8 for ; Thu, 7 May 2020 15:00:09 +0000 (UTC) IronPort-SDR: B/21bJQVzW3/jKBtfMiZvqJUunf3qv1jEFkzABvYB9EZ6ui4NIQlwgdzf2yLUFDRzRPuIMPeWX WkcgyHdARlJw== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 May 2020 08:00:08 -0700 IronPort-SDR: QqfM/WVijykp1e76UKZHvvEv3qS4oash02sa2hE0349Z+qr8zsJuzpIQ77z0OtNXZPr22IWitJ CZhwozUGcsJg== X-IronPort-AV: E=Sophos;i="5.73,364,1583222400"; d="scan'208";a="285021391" Received: from iweiny-desk2.sc.intel.com (HELO localhost) ([10.3.52.147]) by fmsmga004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 May 2020 08:00:07 -0700 From: ira.weiny@intel.com To: linux-kernel@vger.kernel.org, Andrew Morton Subject: [PATCH V3 02/15] arch/xtensa: Move kmap build bug out of the way Date: Thu, 7 May 2020 07:59:50 -0700 Message-Id: <20200507150004.1423069-3-ira.weiny@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200507150004.1423069-1-ira.weiny@intel.com> References: <20200507150004.1423069-1-ira.weiny@intel.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Zijlstra , Dave Hansen , dri-devel@lists.freedesktop.org, "James E.J. Bottomley" , Max Filippov , Paul Mackerras , "H. Peter Anvin" , sparclinux@vger.kernel.org, Ira Weiny , Thomas Gleixner , Helge Deller , x86@kernel.org, linux-csky@vger.kernel.org, Christoph Hellwig , Ingo Molnar , linux-snps-arc@lists.infradead.org, linux-xtensa@linux-xtensa.org, Borislav Petkov , Al Viro , Andy Lutomirski , Dan Williams , linux-arm-kernel@lists.infradead.org, Chris Zankel , Thomas Bogendoerfer , linux-parisc@vger.kernel.org, linux-mips@vger.kernel.org, Christian Koenig , linuxppc-dev@lists.ozlabs.org, "David S. Miller" Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Ira Weiny Move the kmap() build bug to kmap_init() to facilitate patches to lift kmap() to the core. Reviewed-by: Christoph Hellwig Signed-off-by: Ira Weiny --- Changes from V1: combine code onto 1 line. --- arch/xtensa/include/asm/highmem.h | 5 ----- arch/xtensa/mm/highmem.c | 4 ++++ 2 files changed, 4 insertions(+), 5 deletions(-) diff --git a/arch/xtensa/include/asm/highmem.h b/arch/xtensa/include/asm/highmem.h index 413848cc1e56..a9587c85be85 100644 --- a/arch/xtensa/include/asm/highmem.h +++ b/arch/xtensa/include/asm/highmem.h @@ -68,11 +68,6 @@ void kunmap_high(struct page *page); static inline void *kmap(struct page *page) { - /* Check if this memory layout is broken because PKMAP overlaps - * page table. - */ - BUILD_BUG_ON(PKMAP_BASE < - TLBTEMP_BASE_1 + TLBTEMP_SIZE); might_sleep(); if (!PageHighMem(page)) return page_address(page); diff --git a/arch/xtensa/mm/highmem.c b/arch/xtensa/mm/highmem.c index 184ceadccc1a..da734a2ed641 100644 --- a/arch/xtensa/mm/highmem.c +++ b/arch/xtensa/mm/highmem.c @@ -88,6 +88,10 @@ void __init kmap_init(void) { unsigned long kmap_vstart; + /* Check if this memory layout is broken because PKMAP overlaps + * page table. + */ + BUILD_BUG_ON(PKMAP_BASE < TLBTEMP_BASE_1 + TLBTEMP_SIZE); /* cache the first kmap pte */ kmap_vstart = __fix_to_virt(FIX_KMAP_BEGIN); kmap_pte = kmap_get_fixmap_pte(kmap_vstart);