From patchwork Wed Mar 30 10:07:55 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shannon Zhao X-Patchwork-Id: 64676 Delivered-To: patch@linaro.org Received: by 10.112.199.169 with SMTP id jl9csp2501258lbc; Wed, 30 Mar 2016 03:12:15 -0700 (PDT) X-Received: by 10.141.1.132 with SMTP id c126mr8955300qhd.32.1459332735547; Wed, 30 Mar 2016 03:12:15 -0700 (PDT) Return-Path: Received: from lists.xenproject.org (lists.xenproject.org. [192.237.175.120]) by mx.google.com with ESMTPS id d126si3000104qkb.84.2016.03.30.03.12.15 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 30 Mar 2016 03:12:15 -0700 (PDT) Received-SPF: neutral (google.com: 192.237.175.120 is neither permitted nor denied by best guess record for domain of xen-devel-bounces@lists.xen.org) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=neutral (google.com: 192.237.175.120 is neither permitted nor denied by best guess record for domain of xen-devel-bounces@lists.xen.org) smtp.mailfrom=xen-devel-bounces@lists.xen.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1alD5n-0004UZ-UI; Wed, 30 Mar 2016 10:11:15 +0000 Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1alD5n-0004Tp-7w for xen-devel@lists.xen.org; Wed, 30 Mar 2016 10:11:15 +0000 Received: from [85.158.137.68] by server-1.bemta-3.messagelabs.com id 52/F7-07924-246ABF65; Wed, 30 Mar 2016 10:11:14 +0000 X-Env-Sender: zhaoshenglong@huawei.com X-Msg-Ref: server-5.tower-31.messagelabs.com!1459332671!32055973!1 X-Originating-IP: [119.145.14.66] X-SpamReason: No, hits=0.0 required=7.0 tests=sa_preprocessor: VHJ1c3RlZCBJUDogMTE5LjE0NS4xNC42NiA9PiA4NTI3\n X-StarScan-Received: X-StarScan-Version: 8.11; banners=-,-,- X-VirusChecked: Checked Received: (qmail 43830 invoked from network); 30 Mar 2016 10:11:13 -0000 Received: from szxga03-in.huawei.com (HELO szxga03-in.huawei.com) (119.145.14.66) by server-5.tower-31.messagelabs.com with RC4-SHA encrypted SMTP; 30 Mar 2016 10:11:13 -0000 Received: from 172.24.1.49 (EHLO SZXEML423-HUB.china.huawei.com) ([172.24.1.49]) by szxrg03-dlp.huawei.com (MOS 4.4.3-GA FastPath queued) with ESMTP id BYZ04438; Wed, 30 Mar 2016 18:08:58 +0800 (CST) Received: from HGHY1Z002260041.china.huawei.com (10.177.16.142) by SZXEML423-HUB.china.huawei.com (10.82.67.154) with Microsoft SMTP Server id 14.3.235.1; Wed, 30 Mar 2016 18:08:50 +0800 From: Shannon Zhao To: Date: Wed, 30 Mar 2016 18:07:55 +0800 Message-ID: <1459332494-18964-3-git-send-email-zhaoshenglong@huawei.com> X-Mailer: git-send-email 1.9.0.msysgit.0 In-Reply-To: <1459332494-18964-1-git-send-email-zhaoshenglong@huawei.com> References: <1459332494-18964-1-git-send-email-zhaoshenglong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.177.16.142] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090202.56FBA5BC.00DB, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 479137e4957f7cc38c13cb5484673295 Cc: sstabellini@kernel.org, peter.huangpeng@huawei.com, julien.grall@arm.com, stefano.stabellini@citrix.com, shannon.zhao@linaro.org, zhaoshenglong@huawei.com Subject: [Xen-devel] [PATCH v8 02/21] arm/acpi: Add a helper function to get the acpi table offset X-BeenThere: xen-devel@lists.xen.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" From: Shannon Zhao These tables are aligned with 64bit. Signed-off-by: Shannon Zhao Reviewed-by: Stefano Stabellini --- v8: update the description of the function --- xen/arch/arm/acpi/lib.c | 15 +++++++++++++++ xen/include/asm-arm/acpi.h | 10 ++++++++++ 2 files changed, 25 insertions(+) diff --git a/xen/arch/arm/acpi/lib.c b/xen/arch/arm/acpi/lib.c index db5c4d8..79f7edd 100644 --- a/xen/arch/arm/acpi/lib.c +++ b/xen/arch/arm/acpi/lib.c @@ -60,3 +60,18 @@ bool_t __init acpi_psci_hvc_present(void) { return acpi_gbl_FADT.arm_boot_flags & ACPI_FADT_PSCI_USE_HVC; } + +paddr_t __init acpi_get_table_offset(struct membank tbl_add[], + EFI_MEM_RES index) +{ + int i; + paddr_t offset = 0; + + for ( i = 0; i < index; i++ ) + { + /* Aligned with 64bit (8 bytes) */ + offset += ROUNDUP(tbl_add[i].size, 8); + } + + return offset; +} diff --git a/xen/include/asm-arm/acpi.h b/xen/include/asm-arm/acpi.h index 7f59761..9f954d3 100644 --- a/xen/include/asm-arm/acpi.h +++ b/xen/include/asm-arm/acpi.h @@ -25,6 +25,7 @@ #include #include +#include #define COMPILER_DEPENDENT_INT64 long long #define COMPILER_DEPENDENT_UINT64 unsigned long long @@ -46,6 +47,15 @@ bool_t __init acpi_psci_present(void); bool_t __init acpi_psci_hvc_present(void); void __init acpi_smp_init_cpus(void); +/* + * This function returns the offset of a given ACPI/EFI table in the allocated + * memory region. Currently, the tables should be created in the same order as + * their associated 'index' in the enum EFI_MEM_RES. This means the function + * won't return the correct offset until all the tables before a given 'index' + * are created. + */ +paddr_t acpi_get_table_offset(struct membank tbl_add[], EFI_MEM_RES index); + #ifdef CONFIG_ACPI extern bool_t acpi_disabled; /* Basic configuration for ACPI */