From patchwork Mon Dec 21 03:18:25 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "majun (F)" X-Patchwork-Id: 7893001 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id B658FBEEE5 for ; Mon, 21 Dec 2015 03:22:13 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id F2DA9203A9 for ; Mon, 21 Dec 2015 03:22:12 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EA25820397 for ; Mon, 21 Dec 2015 03:22:11 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1aAr10-00008K-2B; Mon, 21 Dec 2015 03:20:02 +0000 Received: from szxga01-in.huawei.com ([58.251.152.64]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1aAr0w-0008Vg-1Y for linux-arm-kernel@lists.infradead.org; Mon, 21 Dec 2015 03:19:59 +0000 Received: from 172.24.1.49 (EHLO szxeml430-hub.china.huawei.com) ([172.24.1.49]) by szxrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id DBF97142; Mon, 21 Dec 2015 11:18:45 +0800 (CST) Received: from localhost (10.177.235.245) by szxeml430-hub.china.huawei.com (10.82.67.185) with Microsoft SMTP Server id 14.3.235.1; Mon, 21 Dec 2015 11:18:34 +0800 From: MaJun To: , , , , , , , , , , , , , , , , Subject: [PATCH] IRQ/Platform-MSI:Increase the maximum MSIs the MSI framework can support. Date: Mon, 21 Dec 2015 11:18:25 +0800 Message-ID: <1450667905-2968-1-git-send-email-majun258@huawei.com> X-Mailer: git-send-email 1.9.5.msysgit.1 MIME-Version: 1.0 X-Originating-IP: [10.177.235.245] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020203.56776F97.004F, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 6e13c78b701fd09c5e41bed79ae12390 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20151220_191958_368541_73A68A84 X-CRM114-Status: UNSURE ( 9.65 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -4.2 (----) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, 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 From: Ma Jun The current MSI framework can only support 256 platform MSIs. But on Hisilicon platform, some network related devices has about 500 wired interrupts. To support these devices, we need a new maximum value more than 256. Signed-off-by: Ma Jun --- drivers/base/platform-msi.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/base/platform-msi.c b/drivers/base/platform-msi.c index a203896..9c00d3f 100644 --- a/drivers/base/platform-msi.c +++ b/drivers/base/platform-msi.c @@ -24,7 +24,7 @@ #include #include -#define DEV_ID_SHIFT 24 +#define DEV_ID_SHIFT 22 #define MAX_DEV_MSIS (1 << (32 - DEV_ID_SHIFT)) /*