From patchwork Thu Feb 17 11:34:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?WW9uZyBXdSAo5ZC05YuHKQ==?= X-Patchwork-Id: 12749910 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 65FCCC433EF for ; Thu, 17 Feb 2022 11:54:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=9kqJJBhSfeYYEm5uWn+TVYU7eBprMWJ/qIwpXhYiOIo=; b=mieysa0jiQOjxk O3iH1luRddRwrFaOJ2yuk2QbSPOo0YmAHezPGLnNLuJgjaZnwFwtDrmrgmU19XQtgCf3YlUVnlFDI jXZ+wXDkrrMTQaXATy2iaeQPHeNQtO6xyEj982+8B2F5uqrChUmZ6ehlaGLbOXk1J7lM5sv+6Vid8 uQcMiISK4Ae2Zf8BlCgJ0y2T5QfvqsCS56qjnLVk+CPFhqeZdocGJsMXPug6XW/8sPdt+3LcZ8ghu ycKRmC0+o3g7TCQ8w7zpjsJE9WjSfDI6HEP6FqmQOM6meZyyHRtbz28He6+FN6mQbzHVxOmblO/Ha ANI/jhAgdu/yz89i5LTQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nKfKt-00ADOb-SD; Thu, 17 Feb 2022 11:52:36 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nKfEO-00AA6e-G2; Thu, 17 Feb 2022 11:45:54 +0000 X-UUID: b47f5eb877be4b5d98f4b5bbf94cceee-20220217 X-UUID: b47f5eb877be4b5d98f4b5bbf94cceee-20220217 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1128303452; Thu, 17 Feb 2022 04:45:48 -0700 Received: from mtkmbs10n1.mediatek.inc (172.21.101.34) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 17 Feb 2022 03:40:01 -0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.15; Thu, 17 Feb 2022 19:40:00 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 17 Feb 2022 19:39:58 +0800 From: Yong Wu To: Joerg Roedel , Rob Herring , Matthias Brugger , Will Deacon CC: Robin Murphy , Krzysztof Kozlowski , Tomasz Figa , , , , , , , Hsin-Yi Wang , , , , , , "AngeloGioacchino Del Regno" , , , , Subject: [PATCH v5 30/34] iommu/mediatek: Change the domid to iova_region_id Date: Thu, 17 Feb 2022 19:34:49 +0800 Message-ID: <20220217113453.13658-31-yong.wu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220217113453.13658-1-yong.wu@mediatek.com> References: <20220217113453.13658-1-yong.wu@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-20220217_034552_560223_11F1449F X-CRM114-Status: GOOD ( 20.44 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Prepare for adding bankid, also no functional change. In the previous SoC, each a iova_region is a domain; In the multi-banks case, each a bank is a domain, then the original function name "mtk_iommu_get_domain_id" is not proper. Use "iova_region_id" instead of "domain_id". Signed-off-by: Yong Wu Reviewed-by: AngeloGioacchino Del Regno --- drivers/iommu/mtk_iommu.c | 46 +++++++++++++++++++-------------------- 1 file changed, 23 insertions(+), 23 deletions(-) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index a58c0dbefedf..86d235d22db1 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -478,8 +478,8 @@ static irqreturn_t mtk_iommu_isr(int irq, void *dev_id) return IRQ_HANDLED; } -static int mtk_iommu_get_domain_id(struct device *dev, - const struct mtk_iommu_plat_data *plat_data) +static int mtk_iommu_get_iova_region_id(struct device *dev, + const struct mtk_iommu_plat_data *plat_data) { const struct mtk_iommu_iova_region *rgn = plat_data->iova_region; const struct bus_dma_region *dma_rgn = dev->dma_range_map; @@ -509,7 +509,7 @@ static int mtk_iommu_get_domain_id(struct device *dev, } static int mtk_iommu_config(struct mtk_iommu_data *data, struct device *dev, - bool enable, unsigned int domid) + bool enable, unsigned int regionid) { struct mtk_smi_larb_iommu *larb_mmu; unsigned int larbid, portid; @@ -525,12 +525,12 @@ static int mtk_iommu_config(struct mtk_iommu_data *data, struct device *dev, if (MTK_IOMMU_IS_TYPE(data->plat_data, MTK_IOMMU_TYPE_MM)) { larb_mmu = &data->larb_imu[larbid]; - region = data->plat_data->iova_region + domid; + region = data->plat_data->iova_region + regionid; larb_mmu->bank[portid] = upper_32_bits(region->iova_base); - dev_dbg(dev, "%s iommu for larb(%s) port %d dom %d bank %d.\n", + dev_dbg(dev, "%s iommu for larb(%s) port %d region %d rgn-bank %d.\n", enable ? "enable" : "disable", dev_name(larb_mmu->dev), - portid, domid, larb_mmu->bank[portid]); + portid, regionid, larb_mmu->bank[portid]); if (enable) larb_mmu->mmu |= MTK_SMI_MMU_EN(portid); @@ -556,7 +556,7 @@ static int mtk_iommu_config(struct mtk_iommu_data *data, struct device *dev, static int mtk_iommu_domain_finalise(struct mtk_iommu_domain *dom, struct mtk_iommu_data *data, - unsigned int domid) + unsigned int region_id) { const struct mtk_iommu_iova_region *region; struct mtk_iommu_domain *m4u_dom; @@ -595,7 +595,7 @@ static int mtk_iommu_domain_finalise(struct mtk_iommu_domain *dom, update_iova_region: /* Update the iova region for this domain */ - region = data->plat_data->iova_region + domid; + region = data->plat_data->iova_region + region_id; dom->domain.geometry.aperture_start = region->iova_base; dom->domain.geometry.aperture_end = region->iova_base + region->size - 1; dom->domain.geometry.force_aperture = true; @@ -631,18 +631,18 @@ static int mtk_iommu_attach_device(struct iommu_domain *domain, struct device *m4udev = data->dev; struct mtk_iommu_bank_data *bank; unsigned int bankid = 0; - int ret, domid; + int ret, region_id; - domid = mtk_iommu_get_domain_id(dev, data->plat_data); - if (domid < 0) - return domid; + region_id = mtk_iommu_get_iova_region_id(dev, data->plat_data); + if (region_id < 0) + return region_id; mutex_lock(&dom->mutex); if (!dom->bank) { /* Data is in the frstdata in sharing pgtable case. */ frstdata = mtk_iommu_get_frst_data(hw_list); - ret = mtk_iommu_domain_finalise(dom, frstdata, domid); + ret = mtk_iommu_domain_finalise(dom, frstdata, region_id); if (ret) { mutex_unlock(&dom->mutex); return -ENODEV; @@ -673,7 +673,7 @@ static int mtk_iommu_attach_device(struct iommu_domain *domain, } mutex_unlock(&data->mutex); - return mtk_iommu_config(data, dev, true, domid); + return mtk_iommu_config(data, dev, true, region_id); err_unlock: mutex_unlock(&data->mutex); @@ -813,22 +813,22 @@ static struct iommu_group *mtk_iommu_device_group(struct device *dev) struct mtk_iommu_data *c_data = dev_iommu_priv_get(dev), *data; struct list_head *hw_list = c_data->hw_list; struct iommu_group *group; - int domid; + int regionid; data = mtk_iommu_get_frst_data(hw_list); if (!data) return ERR_PTR(-ENODEV); - domid = mtk_iommu_get_domain_id(dev, data->plat_data); - if (domid < 0) - return ERR_PTR(domid); + regionid = mtk_iommu_get_iova_region_id(dev, data->plat_data); + if (regionid < 0) + return ERR_PTR(regionid); mutex_lock(&data->mutex); - group = data->m4u_group[domid]; + group = data->m4u_group[regionid]; if (!group) { group = iommu_group_alloc(); if (!IS_ERR(group)) - data->m4u_group[domid] = group; + data->m4u_group[regionid] = group; } else { iommu_group_ref_get(group); } @@ -862,14 +862,14 @@ static void mtk_iommu_get_resv_regions(struct device *dev, struct list_head *head) { struct mtk_iommu_data *data = dev_iommu_priv_get(dev); - unsigned int domid = mtk_iommu_get_domain_id(dev, data->plat_data), i; + unsigned int regionid = mtk_iommu_get_iova_region_id(dev, data->plat_data), i; const struct mtk_iommu_iova_region *resv, *curdom; struct iommu_resv_region *region; int prot = IOMMU_WRITE | IOMMU_READ; - if ((int)domid < 0) + if ((int)regionid < 0) return; - curdom = data->plat_data->iova_region + domid; + curdom = data->plat_data->iova_region + regionid; for (i = 0; i < data->plat_data->iova_region_nr; i++) { resv = data->plat_data->iova_region + i;