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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=unavailable 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 64AD7C33C8C for ; Sun, 5 Jan 2020 10:58:26 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 34D3821582 for ; Sun, 5 Jan 2020 10:58:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="jJ94jfe9"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="kbln8owU" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 34D3821582 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=BqBzB1K+VsN2WjVQZymkW7zYqs90/E6qt5oPGwP0ixY=; b=jJ94jfe9g4Qj3B jhxurAAVBJlvFuseOOs+lxZJieMBXONxKx6G9+Zm6jSZO+MJjUnNfFrCkWZVR2suW1rCmWLJU6bGI xXFMPVbhTB610Bggm92aCPIlUscJWQ66hleikQ4Vj6XYdKoOD7b/c4To1VT7oHa9+qxAlw621KpJZ IX0i1VIEbdoaq/B2IzNHbZLncqxKBqwEFEQDLmUWl1mGWY4r+ViWhidhlEwZshRailEWDcfNwb+98 nL5bVLCvm0OFvlYvZg59Ng4qnhyxl4pBu32xDgnGd0nKkKpi7kpOy8mG/rfLOvAdojsIfD2fWjvb8 qiS2iPlx0ShyyMlb+3iw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1io3bu-0005Od-Jc; Sun, 05 Jan 2020 10:58:18 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1io3aG-0003wZ-Dh; Sun, 05 Jan 2020 10:56:37 +0000 X-UUID: 2ef7e684a96549919040751b8c5b9e87-20200105 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=O7bsaDAzWJe4pXQR0EOb47U3pYGGOvWkg6UdghMGuqI=; b=kbln8owUkNDBoqMRGpAXGcY6AVp9/gai5pIvAh+bfRuIpeOnAfm6RPa36YieEbrqtT9hEtAM6RtNu+Tl3dpOm3zpOstj2s03mSfL64a9NwknsutxcPlWjPmJanXFwEhVfP3jZHmZdzaijfXxPNyB0ZibN7jcfhQb3FoUIBrCBkc=; X-UUID: 2ef7e684a96549919040751b8c5b9e87-20200105 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 501591660; Sun, 05 Jan 2020 02:56:31 -0800 Received: from MTKMBS07N2.mediatek.inc (172.21.101.141) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sun, 5 Jan 2020 02:47:14 -0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sun, 5 Jan 2020 18:46:18 +0800 Received: from localhost.localdomain (10.15.20.246) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Sun, 5 Jan 2020 18:45:15 +0800 From: Chao Hao To: Joerg Roedel , Rob Herring , "Matthias Brugger" Subject: [PATCH v2 06/19] iommu/mediatek: Add new flow to get SUB_COMMON ID in translation fault Date: Sun, 5 Jan 2020 18:45:10 +0800 Message-ID: <20200105104523.31006-7-chao.hao@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200105104523.31006-1-chao.hao@mediatek.com> References: <20200105104523.31006-1-chao.hao@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200105_025636_480918_9FD19F53 X-CRM114-Status: GOOD ( 11.27 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Anan Sun , devicetree@vger.kernel.org, Jun Yan , wsd_upstream@mediatek.com, linux-kernel@vger.kernel.org, Chao Hao , iommu@lists.linux-foundation.org, linux-mediatek@lists.infradead.org, Yong Wu , Cui Zhang , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org When the number of smi_larb is more than seven, smi_larb id will be divided into COMMON_ID(high three bits, bit[11:9]) and SUB_COMMON_ID(low two bits,bit[8:7]). So we can analyse translation fault id by SUB_COMMON_ID and COMMON_ID. We can distinguish if has SUB_COMMON_ID and SUB_COMMON_ID by has_sub_comm variable. Signed-off-by: Chao Hao --- drivers/iommu/mtk_iommu.c | 16 ++++++++++++---- drivers/iommu/mtk_iommu.h | 1 + 2 files changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index b61785a87764..5de13ab1094e 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -89,6 +89,8 @@ #define REG_MMU1_INVLD_PA 0x148 #define REG_MMU0_INT_ID 0x150 #define REG_MMU1_INT_ID 0x154 +#define F_MMU_INT_ID_COMM_ID(a) (((a) >> 9) & 0x7) +#define F_MMU_INT_ID_SUB_COMM_ID(a) (((a) >> 7) & 0x3) #define F_MMU_INT_ID_LARB_ID(a) (((a) >> 7) & 0x7) #define F_MMU_INT_ID_PORT_ID(a) (((a) >> 2) & 0x1f) @@ -227,7 +229,7 @@ static irqreturn_t mtk_iommu_isr(int irq, void *dev_id) struct mtk_iommu_data *data = dev_id; struct mtk_iommu_domain *dom = data->m4u_dom; u32 int_state, regval, fault_iova, fault_pa; - unsigned int fault_larb, fault_port; + unsigned int fault_larb, fault_port, sub_comm = 0; bool layer, write; /* Read error info from registers */ @@ -243,8 +245,13 @@ static irqreturn_t mtk_iommu_isr(int irq, void *dev_id) } layer = fault_iova & F_MMU_FAULT_VA_LAYER_BIT; write = fault_iova & F_MMU_FAULT_VA_WRITE_BIT; - fault_larb = F_MMU_INT_ID_LARB_ID(regval); fault_port = F_MMU_INT_ID_PORT_ID(regval); + if (data->plat_data->has_sub_comm[data->m4u_id]) { + fault_larb = F_MMU_INT_ID_COMM_ID(regval); + sub_comm = F_MMU_INT_ID_SUB_COMM_ID(regval); + } else { + fault_larb = F_MMU_INT_ID_LARB_ID(regval); + } fault_larb = data->plat_data->larbid_remap[data->m4u_id][fault_larb]; @@ -252,8 +259,9 @@ static irqreturn_t mtk_iommu_isr(int irq, void *dev_id) write ? IOMMU_FAULT_WRITE : IOMMU_FAULT_READ)) { dev_err_ratelimited( data->dev, - "fault type=0x%x iova=0x%x pa=0x%x larb=%d port=%d layer=%d %s\n", - int_state, fault_iova, fault_pa, fault_larb, fault_port, + "fault type=0x%x iova=0x%x pa=0x%x larb=%d sub_comm=%d port=%d regval=0x%x layer=%d %s\n", + int_state, fault_iova, fault_pa, fault_larb, + sub_comm, fault_port, regval, layer, write ? "write" : "read"); } diff --git a/drivers/iommu/mtk_iommu.h b/drivers/iommu/mtk_iommu.h index ec3011a50728..d4495230c6e7 100644 --- a/drivers/iommu/mtk_iommu.h +++ b/drivers/iommu/mtk_iommu.h @@ -40,6 +40,7 @@ struct mtk_iommu_plat_data { /* HW will use the EMI clock if there isn't the "bclk". */ bool has_bclk; + bool has_sub_comm[2]; bool has_vld_pa_rng; bool reset_axi; u32 m4u1_mask; -- 2.18.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel