From patchwork Thu Apr 1 15:52:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12178305 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=-16.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 62A89C433B4 for ; Thu, 1 Apr 2021 16:12:38 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (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 05D206135A for ; Thu, 1 Apr 2021 16:12:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 05D206135A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+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=desiato.20200630; 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=N2he7UqZAr323M5t+3vmbEOoQXZVL/BoF6F8v5GP9h0=; b=OSevyBrwOqEn55KEvkNDEtkrj DsKR9nEnF62LnZWvCXS68/g1HRYdrspmGNljxTSVMYDiedEFBsPuprT/yyUTvr7HGF/Pj+d45yUyC cQZAFwCaKdL8MFQwEHt9KIxX2WlI7IGg05noaATJ1BRozM5ErSG+E/L27ywYag7/10lbm62mdmZ6P pgRPVT9rqFE0ktOFedCxwiRXG/CMkxrnS67UnOVHmEi9lMBY1ZwQPym7Y7WO+0uVwvSiPSfSJyfpN a8A0SnFK7pvpzbFGZho/fcCBIlYaVG6L1qE8hLhogeX8jary6HWu9gitwSX5FfThOm48MlHr8aKND GB7MaxJtQ==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lRzuT-00ABBv-LP; Thu, 01 Apr 2021 16:11:06 +0000 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lRzdg-00A6IR-U9 for linux-arm-kernel@lists.infradead.org; Thu, 01 Apr 2021 15:53:45 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=8o97dp155P8hIZws3Wqj7iFhRfZWTujRmO4zOFp4hPY=; b=sbeo5j7kg3nPD6IXZPP02HCuXv Fn0XGzQY9Xs8deWb5kiWPPZEPu3kf4/88/O8rU+//nAvht8ZHRp7k0OEHl5f5AkxSQBtAB1M2uVxN WJc5k73bvy2GVPOqO/3erApIaqj85gWgPTmy3737ygxMkYRY3rQYtT6wl5bDjs+cBUry2kQBWqzDa 1llNchW0ontfI71fUBzt0pN93Wkc8Ovqek9yb13g7IjSSZKuDsAb6i++YAEa7f4ux1g3vjK2tPm8h R07NZMOgF09HJ7hVc+esTWRwSrMZ38joUQvQy93g6nM2O31QVdtA2u4gaoabbeJIVZDQoq+883z0R yTGf247g==; Received: from [2001:4bb8:180:7517:83e4:a809:b0aa:ca74] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94 #2 (Red Hat Linux)) id 1lRzdS-00CibP-Sf; Thu, 01 Apr 2021 15:53:31 +0000 From: Christoph Hellwig To: Joerg Roedel , Will Deacon , Li Yang Cc: Michael Ellerman , David Woodhouse , Lu Baolu , linuxppc-dev@lists.ozlabs.org, linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org Subject: [PATCH 08/20] iommu/fsl_pamu: merge pamu_set_liodn and map_liodn Date: Thu, 1 Apr 2021 17:52:44 +0200 Message-Id: <20210401155256.298656-9-hch@lst.de> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210401155256.298656-1-hch@lst.de> References: <20210401155256.298656-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html 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 Merge the two fuctions that configure the ppaace into a single coherent function. I somehow doubt we need the two pamu_config_ppaace calls, but keep the existing behavior just to be on the safe side. Signed-off-by: Christoph Hellwig Acked-by: Li Yang --- drivers/iommu/fsl_pamu_domain.c | 65 +++++++++------------------------ 1 file changed, 17 insertions(+), 48 deletions(-) diff --git a/drivers/iommu/fsl_pamu_domain.c b/drivers/iommu/fsl_pamu_domain.c index 557a152c1d2c49..198725ef27954f 100644 --- a/drivers/iommu/fsl_pamu_domain.c +++ b/drivers/iommu/fsl_pamu_domain.c @@ -54,25 +54,6 @@ static int __init iommu_init_mempool(void) return 0; } -/* Map the DMA window corresponding to the LIODN */ -static int map_liodn(int liodn, struct fsl_dma_domain *dma_domain) -{ - int ret; - struct iommu_domain_geometry *geom = &dma_domain->iommu_domain.geometry; - unsigned long flags; - - spin_lock_irqsave(&iommu_lock, flags); - ret = pamu_config_ppaace(liodn, geom->aperture_start, - geom->aperture_end + 1, ~(u32)0, - 0, dma_domain->snoop_id, dma_domain->stash_id, - PAACE_AP_PERMS_QUERY | PAACE_AP_PERMS_UPDATE); - spin_unlock_irqrestore(&iommu_lock, flags); - if (ret) - pr_debug("PAACE configuration failed for liodn %d\n", liodn); - - return ret; -} - static int update_liodn_stash(int liodn, struct fsl_dma_domain *dma_domain, u32 val) { @@ -94,11 +75,11 @@ static int update_liodn_stash(int liodn, struct fsl_dma_domain *dma_domain, } /* Set the geometry parameters for a LIODN */ -static int pamu_set_liodn(int liodn, struct device *dev, - struct fsl_dma_domain *dma_domain, - struct iommu_domain_geometry *geom_attr) +static int pamu_set_liodn(struct fsl_dma_domain *dma_domain, struct device *dev, + int liodn) { - phys_addr_t window_addr, window_size; + struct iommu_domain *domain = &dma_domain->iommu_domain; + struct iommu_domain_geometry *geom = &domain->geometry; u32 omi_index = ~(u32)0; unsigned long flags; int ret; @@ -110,22 +91,25 @@ static int pamu_set_liodn(int liodn, struct device *dev, */ get_ome_index(&omi_index, dev); - window_addr = geom_attr->aperture_start; - window_size = geom_attr->aperture_end + 1; - spin_lock_irqsave(&iommu_lock, flags); ret = pamu_disable_liodn(liodn); - if (!ret) - ret = pamu_config_ppaace(liodn, window_addr, window_size, omi_index, - 0, dma_domain->snoop_id, - dma_domain->stash_id, 0); + if (ret) + goto out_unlock; + ret = pamu_config_ppaace(liodn, geom->aperture_start, + geom->aperture_end + 1, omi_index, 0, + dma_domain->snoop_id, dma_domain->stash_id, 0); + if (ret) + goto out_unlock; + ret = pamu_config_ppaace(liodn, geom->aperture_start, + geom->aperture_end + 1, ~(u32)0, + 0, dma_domain->snoop_id, dma_domain->stash_id, + PAACE_AP_PERMS_QUERY | PAACE_AP_PERMS_UPDATE); +out_unlock: spin_unlock_irqrestore(&iommu_lock, flags); if (ret) { pr_debug("PAACE configuration failed for liodn %d\n", liodn); - return ret; } - return ret; } @@ -265,7 +249,6 @@ static int handle_attach_device(struct fsl_dma_domain *dma_domain, int num) { unsigned long flags; - struct iommu_domain *domain = &dma_domain->iommu_domain; int ret = 0; int i; @@ -280,21 +263,7 @@ static int handle_attach_device(struct fsl_dma_domain *dma_domain, } attach_device(dma_domain, liodn[i], dev); - /* - * Check if geometry has already been configured - * for the domain. If yes, set the geometry for - * the LIODN. - */ - ret = pamu_set_liodn(liodn[i], dev, dma_domain, - &domain->geometry); - if (ret) - break; - - /* - * Create window/subwindow mapping for - * the LIODN. - */ - ret = map_liodn(liodn[i], dma_domain); + ret = pamu_set_liodn(dma_domain, dev, liodn[i]); if (ret) break; }