From: Krishna Reddy <vdumpa@nvidia.com>
To: <joro@8bytes.org>, <will@kernel.org>, <robin.murphy@arm.com>,
<robh+dt@kernel.org>, <treding@nvidia.com>,
<jonathanh@nvidia.com>
Cc: <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<iommu@lists.linux-foundation.org>,
<linux-kernel@vger.kernel.org>, <linux-tegra@vger.kernel.org>,
<yhsu@nvidia.com>, <snikam@nvidia.com>, <praithatha@nvidia.com>,
<talho@nvidia.com>, <bbiswas@nvidia.com>, <mperttunen@nvidia.com>,
<nicolinc@nvidia.com>, <bhuntsman@nvidia.com>,
<nicoleotsuka@gmail.com>, Krishna Reddy <vdumpa@nvidia.com>
Subject: [PATCH v10 2/5] iommu/arm-smmu: ioremap smmu mmio region before implementation init
Date: Tue, 7 Jul 2020 22:00:14 -0700 [thread overview]
Message-ID: <20200708050017.31563-3-vdumpa@nvidia.com> (raw)
In-Reply-To: <20200708050017.31563-1-vdumpa@nvidia.com>
ioremap smmu mmio region before calling into implementation init.
This is necessary to allow mapped address available during vendor
specific implementation init.
Signed-off-by: Krishna Reddy <vdumpa@nvidia.com>
---
drivers/iommu/arm-smmu.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index d2054178df35..e03e873d3bca 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -2120,10 +2120,6 @@ static int arm_smmu_device_probe(struct platform_device *pdev)
if (err)
return err;
- smmu = arm_smmu_impl_init(smmu);
- if (IS_ERR(smmu))
- return PTR_ERR(smmu);
-
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
ioaddr = res->start;
smmu->base = devm_ioremap_resource(dev, res);
@@ -2135,6 +2131,10 @@ static int arm_smmu_device_probe(struct platform_device *pdev)
*/
smmu->numpage = resource_size(res);
+ smmu = arm_smmu_impl_init(smmu);
+ if (IS_ERR(smmu))
+ return PTR_ERR(smmu);
+
num_irqs = 0;
while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, num_irqs))) {
num_irqs++;
--
2.26.2
next prev parent reply other threads:[~2020-07-08 5:00 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-08 5:00 [PATCH v10 0/5] NVIDIA ARM SMMU Implementation Krishna Reddy
2020-07-08 5:00 ` [PATCH v10 1/5] iommu/arm-smmu: move TLB timeout and spin count macros Krishna Reddy
2020-07-08 12:05 ` Jon Hunter
2020-07-08 20:37 ` Nicolin Chen
2020-07-08 5:00 ` Krishna Reddy [this message]
2020-07-08 12:05 ` [PATCH v10 2/5] iommu/arm-smmu: ioremap smmu mmio region before implementation init Jon Hunter
2020-07-08 20:37 ` Nicolin Chen
2020-07-13 14:02 ` Robin Murphy
2020-07-08 5:00 ` [PATCH v10 3/5] iommu/arm-smmu: add NVIDIA implementation for ARM MMU-500 usage Krishna Reddy
2020-07-08 12:24 ` Jon Hunter
2020-07-08 20:36 ` Nicolin Chen
2020-07-08 5:00 ` [PATCH v10 4/5] dt-bindings: arm-smmu: add binding for Tegra194 SMMU Krishna Reddy
2020-07-08 12:25 ` Jon Hunter
2020-07-09 20:13 ` Rob Herring
2020-07-10 20:29 ` Krishna Reddy
2020-07-13 14:10 ` Robin Murphy
2020-07-14 14:22 ` Rob Herring
2020-07-08 5:00 ` [PATCH v10 5/5] iommu/arm-smmu: Add global/context fault implementation hooks Krishna Reddy
2020-07-08 12:28 ` Jon Hunter
2020-07-08 20:36 ` Nicolin Chen
2020-07-13 13:44 ` Will Deacon
2020-07-17 11:58 ` Robin Murphy
2020-07-13 13:50 ` [PATCH v10 0/5] NVIDIA ARM SMMU Implementation Will Deacon
2020-07-17 10:03 ` Will Deacon
2020-07-17 22:36 ` Krishna Reddy
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