From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7DA43ECDFB1 for ; Tue, 17 Jul 2018 10:06:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3CD3020C10 for ; Tue, 17 Jul 2018 10:06:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3CD3020C10 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=cn.fujitsu.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730238AbeGQKir (ORCPT ); Tue, 17 Jul 2018 06:38:47 -0400 Received: from mail.cn.fujitsu.com ([183.91.158.132]:58738 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729679AbeGQKir (ORCPT ); Tue, 17 Jul 2018 06:38:47 -0400 X-IronPort-AV: E=Sophos;i="5.43,368,1503331200"; d="scan'208";a="42327534" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 17 Jul 2018 18:06:49 +0800 Received: from G08CNEXCHPEKD02.g08.fujitsu.local (unknown [10.167.33.83]) by cn.fujitsu.com (Postfix) with ESMTP id 8E33F4B5CD85; Tue, 17 Jul 2018 18:06:48 +0800 (CST) Received: from localhost (10.167.225.56) by G08CNEXCHPEKD02.g08.fujitsu.local (10.167.33.89) with Microsoft SMTP Server id 14.3.399.0; Tue, 17 Jul 2018 18:06:47 +0800 From: Chao Fan To: , , , , , , , CC: , , , , Chao Fan Subject: [PATCH v3 1/4] x86/boot: Add acpitb.h to help parse acpi tables Date: Tue, 17 Jul 2018 18:04:06 +0800 Message-ID: <20180717100409.10547-2-fanc.fnst@cn.fujitsu.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180717100409.10547-1-fanc.fnst@cn.fujitsu.com> References: <20180717100409.10547-1-fanc.fnst@cn.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain X-yoursite-MailScanner-ID: 8E33F4B5CD85.AA589 X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: fanc.fnst@cn.fujitsu.com Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In order to parse ACPI tables, reuse the head file linux/acpi.h, so that the files in 'compressed' directory can read ACPI table by including this head file. Signed-off-by: Chao Fan --- arch/x86/boot/compressed/acpitb.h | 50 +++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 arch/x86/boot/compressed/acpitb.h diff --git a/arch/x86/boot/compressed/acpitb.h b/arch/x86/boot/compressed/acpitb.h new file mode 100644 index 000000000000..fd2bba23f447 --- /dev/null +++ b/arch/x86/boot/compressed/acpitb.h @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#include + +#define ACPI_MAX_TABLES 128 + +/* Function to get ACPI SRAT table pointer. */ +struct acpi_table_header *get_acpi_srat_table(void); + +#ifdef ACPI_BIG_ENDIAN + +#define ACPI_MOVE_64_TO_64(d, s) \ +{((u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[7]; \ +((u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[6]; \ +((u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[5]; \ +((u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[4]; \ +((u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[3]; \ +((u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[2]; \ +((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1]; \ +((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0]; } + +#define ACPI_MOVE_16_TO_32(d, s) \ +{(*(u32 *)(void *)(d)) = 0; \ +((u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1]; \ +((u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0]; } + +#else +#ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED + +#define ACPI_MOVE_64_TO_64(d, s) \ +{*(u64 *)(void *)(d) = *(u64 *)(void *)(s); } + +#define ACPI_MOVE_16_TO_32(d, s) \ +{*(u32 *)(void *)(d) = *(u16 *)(void *)(s); } + +#else +#define ACPI_MOVE_64_TO_64(d, s) \ +{((u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0]; \ +((u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1]; \ +((u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[2]; \ +((u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[3]; \ +((u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[4]; \ +((u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[5]; \ +((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[6]; \ +((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[7]; } + +#define ACPI_MOVE_16_TO_32(d, s) \ +{(*(u32 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s); } + +#endif +#endif -- 2.17.1