From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 187DDC433E0 for ; Sun, 17 May 2020 10:11:30 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id CE08120801 for ; Sun, 17 May 2020 10:11:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CE08120801 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 873054B100; Sun, 17 May 2020 06:11:29 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 0zWbI1QRWm5X; Sun, 17 May 2020 06:11:28 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 9399C4B0FA; Sun, 17 May 2020 06:11:28 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 3FE894B0E2 for ; Sun, 17 May 2020 06:11:27 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 1NyYyYqaNc6E for ; Sun, 17 May 2020 06:11:26 -0400 (EDT) Received: from huawei.com (szxga05-in.huawei.com [45.249.212.191]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id 30EBA4B0DA for ; Sun, 17 May 2020 06:11:26 -0400 (EDT) Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 0DC9D623E945004D26DF; Sun, 17 May 2020 18:11:24 +0800 (CST) Received: from DESKTOP-FPN2511.china.huawei.com (10.173.222.58) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.487.0; Sun, 17 May 2020 18:11:16 +0800 From: Jingyi Wang To: , , , Subject: [kvm-unit-tests PATCH 4/6] arm64: its: Handle its command queue wrapping Date: Sun, 17 May 2020 18:08:58 +0800 Message-ID: <20200517100900.30792-5-wangjingyi11@huawei.com> X-Mailer: git-send-email 2.14.1.windows.1 In-Reply-To: <20200517100900.30792-1-wangjingyi11@huawei.com> References: <20200517100900.30792-1-wangjingyi11@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.173.222.58] X-CFilter-Loop: Reflected Cc: maz@kernel.org X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu Because micro-bench may send a large number of ITS commands, we should handle ITS command queue wrapping as kernel instead of just failing the test. Signed-off-by: Jingyi Wang --- lib/arm64/gic-v3-its-cmd.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/lib/arm64/gic-v3-its-cmd.c b/lib/arm64/gic-v3-its-cmd.c index 2c208d1..34574f7 100644 --- a/lib/arm64/gic-v3-its-cmd.c +++ b/lib/arm64/gic-v3-its-cmd.c @@ -164,8 +164,9 @@ static struct its_cmd_block *its_allocate_entry(void) { struct its_cmd_block *cmd; - assert((u64)its_data.cmd_write < (u64)its_data.cmd_base + SZ_64K); cmd = its_data.cmd_write++; + if ((u64)its_data.cmd_write == (u64)its_data.cmd_base + SZ_64K) + its_data.cmd_write = its_data.cmd_base; return cmd; } -- 2.19.1 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm