From patchwork Thu Dec 1 07:46:00 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "majun (F)" X-Patchwork-Id: 9455555 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 336006074E for ; Thu, 1 Dec 2016 07:47:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 25AC52849C for ; Thu, 1 Dec 2016 07:47:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1A60D2849F; Thu, 1 Dec 2016 07:47:18 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A34F22849C for ; Thu, 1 Dec 2016 07:47:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757208AbcLAHqz (ORCPT ); Thu, 1 Dec 2016 02:46:55 -0500 Received: from szxga03-in.huawei.com ([119.145.14.66]:55059 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758717AbcLAHqj (ORCPT ); Thu, 1 Dec 2016 02:46:39 -0500 Received: from 172.24.1.137 (EHLO szxeml433-hub.china.huawei.com) ([172.24.1.137]) by szxrg03-dlp.huawei.com (MOS 4.4.3-GA FastPath queued) with ESMTP id CMD74832; Thu, 01 Dec 2016 15:46:13 +0800 (CST) Received: from localhost (10.177.249.226) by szxeml433-hub.china.huawei.com (10.82.67.210) with Microsoft SMTP Server id 14.3.235.1; Thu, 1 Dec 2016 15:46:05 +0800 From: Majun To: , , , , , , , , , , CC: , , Subject: [RFC PATCH 3/3]irqchip/gicv3-its: Add a new flag to control indirect route in ACPI mode. Date: Thu, 1 Dec 2016 15:46:00 +0800 Message-ID: <1480578360-9268-4-git-send-email-majun258@huawei.com> X-Mailer: git-send-email 1.9.5.msysgit.1 In-Reply-To: <1480578360-9268-1-git-send-email-majun258@huawei.com> References: <1480578360-9268-1-git-send-email-majun258@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.177.249.226] X-CFilter-Loop: Reflected Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: MaJun Add a new flag to control indirect route function for ACPI mode. To carry the user defined flags information, we used the reserved byte in ITS MADT table Signed-off-by: MaJun --- drivers/irqchip/irq-gic-v3-its.c | 5 ++++- include/acpi/actbl1.h | 3 ++- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index ee54133..4420283 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -1848,6 +1848,7 @@ static int __init gic_acpi_parse_madt_its(struct acpi_subtable_header *header, struct fwnode_handle *dom_handle; struct resource res; int err; + u8 flags = 0; its_entry = (struct acpi_madt_generic_translator *)header; memset(&res, 0, sizeof(res)); @@ -1855,6 +1856,8 @@ static int __init gic_acpi_parse_madt_its(struct acpi_subtable_header *header, res.end = its_entry->base_address + ACPI_GICV3_ITS_MEM_SIZE - 1; res.flags = IORESOURCE_MEM; + flags = its_entry->flags; + dom_handle = irq_domain_alloc_fwnode((void *)its_entry->base_address); if (!dom_handle) { pr_err("ITS@%pa: Unable to allocate GICv3 ITS domain token\n", @@ -1869,7 +1872,7 @@ static int __init gic_acpi_parse_madt_its(struct acpi_subtable_header *header, goto dom_err; } - err = its_probe_one(&res, dom_handle, NUMA_NO_NODE, 0); + err = its_probe_one(&res, dom_handle, NUMA_NO_NODE, flags); if (!err) return 0; diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h index 796d6ba..42a08ae 100644 --- a/include/acpi/actbl1.h +++ b/include/acpi/actbl1.h @@ -930,7 +930,8 @@ struct acpi_madt_generic_translator { u16 reserved; /* reserved - must be zero */ u32 translation_id; u64 base_address; - u32 reserved2; + u8 flags; + u8 reserved2[3]; }; /*