From patchwork Tue Jul 29 03:27:50 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hanjun Guo X-Patchwork-Id: 4638261 Return-Path: X-Original-To: patchwork-linux-acpi@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 733A59F32F for ; Tue, 29 Jul 2014 03:28:44 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 9D6B12018E for ; Tue, 29 Jul 2014 03:28:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 946E620158 for ; Tue, 29 Jul 2014 03:28:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752188AbaG2D2S (ORCPT ); Mon, 28 Jul 2014 23:28:18 -0400 Received: from mail-pd0-f179.google.com ([209.85.192.179]:50799 "EHLO mail-pd0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751779AbaG2D2R (ORCPT ); Mon, 28 Jul 2014 23:28:17 -0400 Received: by mail-pd0-f179.google.com with SMTP id ft15so11018637pdb.10 for ; Mon, 28 Jul 2014 20:28:17 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=zxBlOzGk4L/BO3ybJ4jAy+IRB6p4f8ZI4f3JoesjPJY=; b=aUKDgK5FXWLXiAirDZKHYkA8xeEzkkpdD+nl88GpUb1hXNxemcElr3+fW8FfYV8W5C BB1lS0Sbxwm2AM29NDS1D5fBdLslDXorazZ/MqTDyrUieYNthiGGssDvcu06CxgY4qm6 wPupLAuIHgm+5wD/P89yAr7n1UFcoWepqvVhwKJgyOEH2csbd78Ve9FFWbFU9N3rE0Eu 8+58wXarkEFGgwsTHqjsZIdufk7hkL2+3T9hlPhO3mn2zCDXv7DCBeAclLqbm/F7VDU7 22+r6EMwlwUHYaz89eX0VaYfsk2ro973iHnCnQZ4vNJbbFLiztG1ylt3HW74PkI92GqK sZBA== X-Gm-Message-State: ALoCoQl+FRvz++ISjYWTLSZASOBnPbsWnWfvbHUscbltneaglbO6p3K1Hpq3Xu+ykiE2gN8dHZfH X-Received: by 10.69.17.230 with SMTP id gh6mr43075673pbd.0.1406604496887; Mon, 28 Jul 2014 20:28:16 -0700 (PDT) Received: from localhost ([183.247.163.231]) by mx.google.com with ESMTPSA id c5sm26716348pdh.93.2014.07.28.20.28.14 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Mon, 28 Jul 2014 20:28:16 -0700 (PDT) From: Hanjun Guo To: "Rafael J. Wysocki" Cc: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, Hanjun Guo Subject: [PATCH] ACPI / processor: Make it possible to get local x2apic id via _MAT Date: Tue, 29 Jul 2014 11:27:50 +0800 Message-Id: <1406604470-4800-1-git-send-email-hanjun.guo@linaro.org> X-Mailer: git-send-email 1.7.9.5 Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Spam-Status: No, score=-7.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, 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 Logical processors with APIC ID values of 255 and greater are required to have a Processor Device object and must convey the processor's APIC information to OSPM using the Processor Local X2APIC structure, but not until ACPI 5.1, X2APIC structure was not supported in _MAT method. _MAT is needed for CPU hotplug and system with more than 255 CPUs will definitely need X2APIC structure, so add its support in map_mat_entry() to make it possible to get local x2apic id via _MAT based on ACPI 5.1. Signed-off-by: Hanjun Guo --- drivers/acpi/processor_core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 00f48d1..e32321c 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -129,6 +129,8 @@ static int map_mat_entry(acpi_handle handle, int type, u32 acpi_id) map_lapic_id(header, acpi_id, &apic_id); } else if (header->type == ACPI_MADT_TYPE_LOCAL_SAPIC) { map_lsapic_id(header, type, acpi_id, &apic_id); + } else if (header->type == ACPI_MADT_TYPE_LOCAL_X2APIC) { + map_x2apic_id(header, type, acpi_id, &apic_id); } exit: