From patchwork Mon Oct 19 00:53:52 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiao Guangrong X-Patchwork-Id: 7431361 Return-Path: X-Original-To: patchwork-kvm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 4946C9F36A for ; Sun, 18 Oct 2015 17:01:26 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 672A92061E for ; Sun, 18 Oct 2015 17:01:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 69FA9205E4 for ; Sun, 18 Oct 2015 17:01:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932183AbbJRQ7v (ORCPT ); Sun, 18 Oct 2015 12:59:51 -0400 Received: from mga11.intel.com ([192.55.52.93]:27668 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932145AbbJRQ7n (ORCPT ); Sun, 18 Oct 2015 12:59:43 -0400 Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga102.fm.intel.com with ESMTP; 18 Oct 2015 09:59:43 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,698,1437462000"; d="scan'208";a="583275311" Received: from xiaoreal1.sh.intel.com (HELO xiaoreal1.sh.intel.com.sh.intel.com) ([10.239.48.79]) by FMSMGA003.fm.intel.com with ESMTP; 18 Oct 2015 09:59:41 -0700 From: Xiao Guangrong To: pbonzini@redhat.com, imammedo@redhat.com Cc: gleb@kernel.org, mtosatti@redhat.com, stefanha@redhat.com, mst@redhat.com, rth@twiddle.net, ehabkost@redhat.com, dan.j.williams@intel.com, kvm@vger.kernel.org, qemu-devel@nongnu.org, Xiao Guangrong Subject: [PATCH v4 06/33] acpi: add aml_method_serialized Date: Mon, 19 Oct 2015 08:53:52 +0800 Message-Id: <1445216059-88521-7-git-send-email-guangrong.xiao@linux.intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1445216059-88521-1-git-send-email-guangrong.xiao@linux.intel.com> References: <1445216059-88521-1-git-send-email-guangrong.xiao@linux.intel.com> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Spam-Status: No, score=-5.0 required=5.0 tests=BAYES_00, DATE_IN_FUTURE_06_12, RCVD_IN_DNSWL_HI, T_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 It avoid explicit Mutex and will be used by NVDIMM ACPI Signed-off-by: Xiao Guangrong --- hw/acpi/aml-build.c | 26 ++++++++++++++++++++++++-- include/hw/acpi/aml-build.h | 1 + 2 files changed, 25 insertions(+), 2 deletions(-) diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c index 9f792ab..8bee8b2 100644 --- a/hw/acpi/aml-build.c +++ b/hw/acpi/aml-build.c @@ -696,14 +696,36 @@ Aml *aml_while(Aml *predicate) } /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefMethod */ -Aml *aml_method(const char *name, int arg_count) +static Aml *__aml_method(const char *name, int arg_count, bool serialized) { Aml *var = aml_bundle(0x14 /* MethodOp */, AML_PACKAGE); + int methodflags; + + /* + * MethodFlags: + * bit 0-2: ArgCount (0-7) + * bit 3: SerializeFlag + * 0: NotSerialized + * 1: Serialized + * bit 4-7: reserved (must be 0) + */ + assert(!(arg_count & ~7)); + methodflags = arg_count | (serialized << 3); build_append_namestring(var->buf, "%s", name); - build_append_byte(var->buf, arg_count); /* MethodFlags: ArgCount */ + build_append_byte(var->buf, methodflags); return var; } +Aml *aml_method(const char *name, int arg_count) +{ + return __aml_method(name, arg_count, false); +} + +Aml *aml_method_serialized(const char *name, int arg_count) +{ + return __aml_method(name, arg_count, true); +} + /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefDevice */ Aml *aml_device(const char *name_format, ...) { diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h index 5b8a118..00cf40e 100644 --- a/include/hw/acpi/aml-build.h +++ b/include/hw/acpi/aml-build.h @@ -263,6 +263,7 @@ Aml *aml_qword_memory(AmlDecode dec, AmlMinFixed min_fixed, Aml *aml_scope(const char *name_format, ...) GCC_FMT_ATTR(1, 2); Aml *aml_device(const char *name_format, ...) GCC_FMT_ATTR(1, 2); Aml *aml_method(const char *name, int arg_count); +Aml *aml_method_serialized(const char *name, int arg_count); Aml *aml_if(Aml *predicate); Aml *aml_else(void); Aml *aml_while(Aml *predicate);