From patchwork Fri Feb 28 15:08:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joerg Roedel X-Patchwork-Id: 11412493 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 17D2813A4 for ; Fri, 28 Feb 2020 15:09:12 +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 E9A782469F for ; Fri, 28 Feb 2020 15:09:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="IML/BDTW" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E9A782469F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=8bytes.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: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=tPJZNcfBw0f+Rlucmq4hiPhOtI1fcFjyfQhHFjqrJzc=; b=IML/BDTW14KuWQqd36IiuEAOYP wdgdtkmy38Jeh7c26n6vnfNVyPduHE3YT0eON/L3sKvVnvQwHAXPTegeZt1xBioYPhjUvdN4fVeb+ Rkg96MrSEn1rptdeiJyIkYOiVKGFK+ypZxs5OqqGBHxbdmKXM09amDz2Xk6fxexn4amEbTkj/iM8y VlO0mW8+o7miG+EqjSYwuZ9nw2Ro5JbLMCoJyqZCESlKkcXlX52ZicsCc7RinQjCE8g77NSTIF76T bXzI951iaY8WUnf1DrLl+0Rz+Q+/KtnxbuWOSnU4HaIMnYW5GupypXVk+7dxMHOhhI1V7RKvtwdKu yRmXr2TQ==; 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 1j7hGH-0006oP-UX; Fri, 28 Feb 2020 15:09:09 +0000 Received: from 8bytes.org ([2a01:238:4383:600:38bc:a715:4b6d:a889] helo=theia.8bytes.org) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j7hFy-0006Lu-8Q for linux-mediatek@lists.infradead.org; Fri, 28 Feb 2020 15:08:53 +0000 Received: by theia.8bytes.org (Postfix, from userid 1000) id 27BC45BC; Fri, 28 Feb 2020 16:08:30 +0100 (CET) From: Joerg Roedel To: iommu@lists.linux-foundation.org Subject: [PATCH 09/14] iommu/arm-smmu: Use accessor functions for iommu private data Date: Fri, 28 Feb 2020 16:08:15 +0100 Message-Id: <20200228150820.15340-10-joro@8bytes.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200228150820.15340-1-joro@8bytes.org> References: <20200228150820.15340-1-joro@8bytes.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200228_070850_600286_226BF7C8 X-CRM114-Status: GOOD ( 12.27 ) X-Spam-Score: -0.0 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jean-Philippe Brucker , Lorenzo Pieralisi , Will Deacon , linux-arm-msm@vger.kernel.org, Joerg Roedel , Sudeep Holla , linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, Rob Clark , Thierry Reding , linux-mediatek@lists.infradead.org, Andy Gross , Joerg Roedel , Hanjun Guo , Matthias Brugger , Bjorn Andersson , Sean Paul , Robin Murphy MIME-Version: 1.0 Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org From: Joerg Roedel Make use of dev_iommu_priv_set/get() functions and simplify the code where possible with this change. Signed-off-by: Joerg Roedel --- drivers/iommu/arm-smmu.c | 56 +++++++++++++++++++++------------------- 1 file changed, 29 insertions(+), 27 deletions(-) diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index 980aae73b45b..8276fff5f7dc 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -98,12 +98,15 @@ struct arm_smmu_master_cfg { s16 smendx[]; }; #define INVALID_SMENDX -1 -#define __fwspec_cfg(fw) ((struct arm_smmu_master_cfg *)fw->iommu_priv) -#define fwspec_smmu(fw) (__fwspec_cfg(fw)->smmu) -#define fwspec_smendx(fw, i) \ - (i >= fw->num_ids ? INVALID_SMENDX : __fwspec_cfg(fw)->smendx[i]) -#define for_each_cfg_sme(fw, i, idx) \ - for (i = 0; idx = fwspec_smendx(fw, i), i < fw->num_ids; ++i) +#define __fwspec_cfg(dev) ((struct arm_smmu_master_cfg *)dev_iommu_priv_get(dev)) +#define fwspec_smmu(dev) (__fwspec_cfg(dev)->smmu) +#define fwspec_smendx(dev, i) \ + (i >= dev_iommu_fwspec_get(dev)->num_ids ? \ + INVALID_SMENDX : \ + __fwspec_cfg(dev)->smendx[i]) +#define for_each_cfg_sme(dev, i, idx) \ + for (i = 0; idx = fwspec_smendx(dev, i), \ + i < dev_iommu_fwspec_get(dev)->num_ids; ++i) static bool using_legacy_binding, using_generic_binding; @@ -1061,7 +1064,7 @@ static bool arm_smmu_free_sme(struct arm_smmu_device *smmu, int idx) static int arm_smmu_master_alloc_smes(struct device *dev) { struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); - struct arm_smmu_master_cfg *cfg = fwspec->iommu_priv; + struct arm_smmu_master_cfg *cfg = dev_iommu_priv_get(dev); struct arm_smmu_device *smmu = cfg->smmu; struct arm_smmu_smr *smrs = smmu->smrs; struct iommu_group *group; @@ -1069,7 +1072,7 @@ static int arm_smmu_master_alloc_smes(struct device *dev) mutex_lock(&smmu->stream_map_mutex); /* Figure out a viable stream map entry allocation */ - for_each_cfg_sme(fwspec, i, idx) { + for_each_cfg_sme(dev, i, idx) { u16 sid = FIELD_GET(ARM_SMMU_SMR_ID, fwspec->ids[i]); u16 mask = FIELD_GET(ARM_SMMU_SMR_MASK, fwspec->ids[i]); @@ -1100,7 +1103,7 @@ static int arm_smmu_master_alloc_smes(struct device *dev) iommu_group_put(group); /* It worked! Now, poke the actual hardware */ - for_each_cfg_sme(fwspec, i, idx) { + for_each_cfg_sme(dev, i, idx) { arm_smmu_write_sme(smmu, idx); smmu->s2crs[idx].group = group; } @@ -1117,14 +1120,14 @@ static int arm_smmu_master_alloc_smes(struct device *dev) return ret; } -static void arm_smmu_master_free_smes(struct iommu_fwspec *fwspec) +static void arm_smmu_master_free_smes(struct device *dev) { - struct arm_smmu_device *smmu = fwspec_smmu(fwspec); - struct arm_smmu_master_cfg *cfg = fwspec->iommu_priv; + struct arm_smmu_master_cfg *cfg = dev_iommu_priv_get(dev); + struct arm_smmu_device *smmu = fwspec_smmu(dev); int i, idx; mutex_lock(&smmu->stream_map_mutex); - for_each_cfg_sme(fwspec, i, idx) { + for_each_cfg_sme(dev, i, idx) { if (arm_smmu_free_sme(smmu, idx)) arm_smmu_write_sme(smmu, idx); cfg->smendx[i] = INVALID_SMENDX; @@ -1133,7 +1136,7 @@ static void arm_smmu_master_free_smes(struct iommu_fwspec *fwspec) } static int arm_smmu_domain_add_master(struct arm_smmu_domain *smmu_domain, - struct iommu_fwspec *fwspec) + struct device *dev) { struct arm_smmu_device *smmu = smmu_domain->smmu; struct arm_smmu_s2cr *s2cr = smmu->s2crs; @@ -1146,7 +1149,7 @@ static int arm_smmu_domain_add_master(struct arm_smmu_domain *smmu_domain, else type = S2CR_TYPE_TRANS; - for_each_cfg_sme(fwspec, i, idx) { + for_each_cfg_sme(dev, i, idx) { if (type == s2cr[idx].type && cbndx == s2cr[idx].cbndx) continue; @@ -1160,10 +1163,10 @@ static int arm_smmu_domain_add_master(struct arm_smmu_domain *smmu_domain, static int arm_smmu_attach_dev(struct iommu_domain *domain, struct device *dev) { - int ret; + struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain); struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); struct arm_smmu_device *smmu; - struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain); + int ret; if (!fwspec || fwspec->ops != &arm_smmu_ops) { dev_err(dev, "cannot attach to SMMU, is it on the same bus?\n"); @@ -1177,10 +1180,10 @@ static int arm_smmu_attach_dev(struct iommu_domain *domain, struct device *dev) * domains, just say no (but more politely than by dereferencing NULL). * This should be at least a WARN_ON once that's sorted. */ - if (!fwspec->iommu_priv) + if (!dev_iommu_priv_get(dev)) return -ENODEV; - smmu = fwspec_smmu(fwspec); + smmu = fwspec_smmu(dev); ret = arm_smmu_rpm_get(smmu); if (ret < 0) @@ -1204,7 +1207,7 @@ static int arm_smmu_attach_dev(struct iommu_domain *domain, struct device *dev) } /* Looks ok, so add the device to the domain */ - ret = arm_smmu_domain_add_master(smmu_domain, fwspec); + ret = arm_smmu_domain_add_master(smmu_domain, dev); /* * Setup an autosuspend delay to avoid bouncing runpm state. @@ -1429,7 +1432,7 @@ static int arm_smmu_add_device(struct device *dev) goto out_free; cfg->smmu = smmu; - fwspec->iommu_priv = cfg; + dev_iommu_priv_set(dev, cfg); while (i--) cfg->smendx[i] = INVALID_SMENDX; @@ -1467,7 +1470,7 @@ static void arm_smmu_remove_device(struct device *dev) if (!fwspec || fwspec->ops != &arm_smmu_ops) return; - cfg = fwspec->iommu_priv; + cfg = dev_iommu_priv_get(dev); smmu = cfg->smmu; ret = arm_smmu_rpm_get(smmu); @@ -1475,23 +1478,22 @@ static void arm_smmu_remove_device(struct device *dev) return; iommu_device_unlink(&smmu->iommu, dev); - arm_smmu_master_free_smes(fwspec); + arm_smmu_master_free_smes(dev); arm_smmu_rpm_put(smmu); iommu_group_remove_device(dev); - kfree(fwspec->iommu_priv); iommu_fwspec_free(dev); + kfree(cfg); } static struct iommu_group *arm_smmu_device_group(struct device *dev) { - struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); - struct arm_smmu_device *smmu = fwspec_smmu(fwspec); + struct arm_smmu_device *smmu = fwspec_smmu(dev); struct iommu_group *group = NULL; int i, idx; - for_each_cfg_sme(fwspec, i, idx) { + for_each_cfg_sme(dev, i, idx) { if (group && smmu->s2crs[idx].group && group != smmu->s2crs[idx].group) return ERR_PTR(-EINVAL);