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From: Thierry Reding <thierry.reding@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
	Will Deacon <will@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Cc: Robin Murphy <robin.murphy@arm.com>,
	Joerg Roedel <joro@8bytes.org>, Jon Hunter <jonathanh@nvidia.com>,
	Nicolin Chen <nicolinc@nvidia.com>,
	Krishna Reddy <vdumpa@nvidia.com>,
	linux-tegra@vger.kernel.org, iommu@lists.linux-foundation.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 3/9] iommu/arm-smmu: Implement ->probe_finalize()
Date: Thu,  3 Jun 2021 18:46:26 +0200	[thread overview]
Message-ID: <20210603164632.1000458-4-thierry.reding@gmail.com> (raw)
In-Reply-To: <20210603164632.1000458-1-thierry.reding@gmail.com>

From: Thierry Reding <treding@nvidia.com>

Implement a ->probe_finalize() callback that can be used by vendor
implementations to perform extra programming necessary after devices
have been attached to the SMMU.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
Changes in v2:
- remove unnecessarily paranoid check

 drivers/iommu/arm/arm-smmu/arm-smmu.c | 13 +++++++++++++
 drivers/iommu/arm/arm-smmu/arm-smmu.h |  1 +
 2 files changed, 14 insertions(+)

diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c b/drivers/iommu/arm/arm-smmu/arm-smmu.c
index 6f72c4d208ca..d20ce4d57df2 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c
@@ -1450,6 +1450,18 @@ static void arm_smmu_release_device(struct device *dev)
 	iommu_fwspec_free(dev);
 }
 
+static void arm_smmu_probe_finalize(struct device *dev)
+{
+	struct arm_smmu_master_cfg *cfg;
+	struct arm_smmu_device *smmu;
+
+	cfg = dev_iommu_priv_get(dev);
+	smmu = cfg->smmu;
+
+	if (smmu->impl->probe_finalize)
+		smmu->impl->probe_finalize(smmu, dev);
+}
+
 static struct iommu_group *arm_smmu_device_group(struct device *dev)
 {
 	struct arm_smmu_master_cfg *cfg = dev_iommu_priv_get(dev);
@@ -1569,6 +1581,7 @@ static struct iommu_ops arm_smmu_ops = {
 	.iova_to_phys		= arm_smmu_iova_to_phys,
 	.probe_device		= arm_smmu_probe_device,
 	.release_device		= arm_smmu_release_device,
+	.probe_finalize		= arm_smmu_probe_finalize,
 	.device_group		= arm_smmu_device_group,
 	.enable_nesting		= arm_smmu_enable_nesting,
 	.set_pgtable_quirks	= arm_smmu_set_pgtable_quirks,
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.h b/drivers/iommu/arm/arm-smmu/arm-smmu.h
index c31a59d35c64..147c95e7c59c 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu.h
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu.h
@@ -439,6 +439,7 @@ struct arm_smmu_impl {
 				  struct device *dev, int start);
 	void (*write_s2cr)(struct arm_smmu_device *smmu, int idx);
 	void (*write_sctlr)(struct arm_smmu_device *smmu, int idx, u32 reg);
+	void (*probe_finalize)(struct arm_smmu_device *smmu, struct device *dev);
 };
 
 #define INVALID_SMENDX			-1
-- 
2.31.1


WARNING: multiple messages have this Message-ID (diff)
From: Thierry Reding <thierry.reding@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
	Will Deacon <will@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Cc: iommu@lists.linux-foundation.org,
	Jon Hunter <jonathanh@nvidia.com>,
	Nicolin Chen <nicolinc@nvidia.com>,
	linux-tegra@vger.kernel.org, Robin Murphy <robin.murphy@arm.com>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 3/9] iommu/arm-smmu: Implement ->probe_finalize()
Date: Thu,  3 Jun 2021 18:46:26 +0200	[thread overview]
Message-ID: <20210603164632.1000458-4-thierry.reding@gmail.com> (raw)
In-Reply-To: <20210603164632.1000458-1-thierry.reding@gmail.com>

From: Thierry Reding <treding@nvidia.com>

Implement a ->probe_finalize() callback that can be used by vendor
implementations to perform extra programming necessary after devices
have been attached to the SMMU.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
Changes in v2:
- remove unnecessarily paranoid check

 drivers/iommu/arm/arm-smmu/arm-smmu.c | 13 +++++++++++++
 drivers/iommu/arm/arm-smmu/arm-smmu.h |  1 +
 2 files changed, 14 insertions(+)

diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c b/drivers/iommu/arm/arm-smmu/arm-smmu.c
index 6f72c4d208ca..d20ce4d57df2 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c
@@ -1450,6 +1450,18 @@ static void arm_smmu_release_device(struct device *dev)
 	iommu_fwspec_free(dev);
 }
 
+static void arm_smmu_probe_finalize(struct device *dev)
+{
+	struct arm_smmu_master_cfg *cfg;
+	struct arm_smmu_device *smmu;
+
+	cfg = dev_iommu_priv_get(dev);
+	smmu = cfg->smmu;
+
+	if (smmu->impl->probe_finalize)
+		smmu->impl->probe_finalize(smmu, dev);
+}
+
 static struct iommu_group *arm_smmu_device_group(struct device *dev)
 {
 	struct arm_smmu_master_cfg *cfg = dev_iommu_priv_get(dev);
@@ -1569,6 +1581,7 @@ static struct iommu_ops arm_smmu_ops = {
 	.iova_to_phys		= arm_smmu_iova_to_phys,
 	.probe_device		= arm_smmu_probe_device,
 	.release_device		= arm_smmu_release_device,
+	.probe_finalize		= arm_smmu_probe_finalize,
 	.device_group		= arm_smmu_device_group,
 	.enable_nesting		= arm_smmu_enable_nesting,
 	.set_pgtable_quirks	= arm_smmu_set_pgtable_quirks,
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.h b/drivers/iommu/arm/arm-smmu/arm-smmu.h
index c31a59d35c64..147c95e7c59c 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu.h
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu.h
@@ -439,6 +439,7 @@ struct arm_smmu_impl {
 				  struct device *dev, int start);
 	void (*write_s2cr)(struct arm_smmu_device *smmu, int idx);
 	void (*write_sctlr)(struct arm_smmu_device *smmu, int idx, u32 reg);
+	void (*probe_finalize)(struct arm_smmu_device *smmu, struct device *dev);
 };
 
 #define INVALID_SMENDX			-1
-- 
2.31.1

_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu

WARNING: multiple messages have this Message-ID (diff)
From: Thierry Reding <thierry.reding@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
	Will Deacon <will@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Cc: Joerg Roedel <joro@8bytes.org>,
	iommu@lists.linux-foundation.org,
	Jon Hunter <jonathanh@nvidia.com>,
	Nicolin Chen <nicolinc@nvidia.com>,
	linux-tegra@vger.kernel.org, Robin Murphy <robin.murphy@arm.com>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 3/9] iommu/arm-smmu: Implement ->probe_finalize()
Date: Thu,  3 Jun 2021 18:46:26 +0200	[thread overview]
Message-ID: <20210603164632.1000458-4-thierry.reding@gmail.com> (raw)
In-Reply-To: <20210603164632.1000458-1-thierry.reding@gmail.com>

From: Thierry Reding <treding@nvidia.com>

Implement a ->probe_finalize() callback that can be used by vendor
implementations to perform extra programming necessary after devices
have been attached to the SMMU.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
Changes in v2:
- remove unnecessarily paranoid check

 drivers/iommu/arm/arm-smmu/arm-smmu.c | 13 +++++++++++++
 drivers/iommu/arm/arm-smmu/arm-smmu.h |  1 +
 2 files changed, 14 insertions(+)

diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c b/drivers/iommu/arm/arm-smmu/arm-smmu.c
index 6f72c4d208ca..d20ce4d57df2 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c
@@ -1450,6 +1450,18 @@ static void arm_smmu_release_device(struct device *dev)
 	iommu_fwspec_free(dev);
 }
 
+static void arm_smmu_probe_finalize(struct device *dev)
+{
+	struct arm_smmu_master_cfg *cfg;
+	struct arm_smmu_device *smmu;
+
+	cfg = dev_iommu_priv_get(dev);
+	smmu = cfg->smmu;
+
+	if (smmu->impl->probe_finalize)
+		smmu->impl->probe_finalize(smmu, dev);
+}
+
 static struct iommu_group *arm_smmu_device_group(struct device *dev)
 {
 	struct arm_smmu_master_cfg *cfg = dev_iommu_priv_get(dev);
@@ -1569,6 +1581,7 @@ static struct iommu_ops arm_smmu_ops = {
 	.iova_to_phys		= arm_smmu_iova_to_phys,
 	.probe_device		= arm_smmu_probe_device,
 	.release_device		= arm_smmu_release_device,
+	.probe_finalize		= arm_smmu_probe_finalize,
 	.device_group		= arm_smmu_device_group,
 	.enable_nesting		= arm_smmu_enable_nesting,
 	.set_pgtable_quirks	= arm_smmu_set_pgtable_quirks,
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.h b/drivers/iommu/arm/arm-smmu/arm-smmu.h
index c31a59d35c64..147c95e7c59c 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu.h
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu.h
@@ -439,6 +439,7 @@ struct arm_smmu_impl {
 				  struct device *dev, int start);
 	void (*write_s2cr)(struct arm_smmu_device *smmu, int idx);
 	void (*write_sctlr)(struct arm_smmu_device *smmu, int idx, u32 reg);
+	void (*probe_finalize)(struct arm_smmu_device *smmu, struct device *dev);
 };
 
 #define INVALID_SMENDX			-1
-- 
2.31.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2021-06-03 16:45 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-03 16:46 [PATCH v3 0/9] arm64: tegra: Prevent early SMMU faults Thierry Reding
2021-06-03 16:46 ` Thierry Reding
2021-06-03 16:46 ` Thierry Reding
2021-06-03 16:46 ` [PATCH v3 1/9] memory: tegra: Implement SID override programming Thierry Reding
2021-06-03 16:46   ` Thierry Reding
2021-06-03 16:46   ` Thierry Reding
2021-06-03 16:46 ` [PATCH v3 2/9] dt-bindings: arm-smmu: Add Tegra186 compatible string Thierry Reding
2021-06-03 16:46   ` Thierry Reding
2021-06-03 16:46   ` Thierry Reding
2021-06-18 19:47   ` Rob Herring
2021-06-18 19:47     ` Rob Herring
2021-06-18 19:47     ` Rob Herring
2021-06-21  6:46     ` Krzysztof Kozlowski
2021-06-21  6:46       ` Krzysztof Kozlowski
2021-06-21  6:46       ` Krzysztof Kozlowski
2021-06-21 14:11       ` Thierry Reding
2021-06-21 14:11         ` Thierry Reding
2021-06-21 14:11         ` Thierry Reding
2021-06-21 15:54         ` Will Deacon
2021-06-21 15:54           ` Will Deacon
2021-06-21 15:54           ` Will Deacon
2021-06-21 16:03           ` Thierry Reding
2021-06-21 16:03             ` Thierry Reding
2021-06-21 16:03             ` Thierry Reding
2021-06-03 16:46 ` Thierry Reding [this message]
2021-06-03 16:46   ` [PATCH v3 3/9] iommu/arm-smmu: Implement ->probe_finalize() Thierry Reding
2021-06-03 16:46   ` Thierry Reding
     [not found]   ` <CGME20210615180133eucas1p2563c2a173eca1fb5a1c5ccf654c23778@eucas1p2.samsung.com>
2021-06-15 18:01     ` Marek Szyprowski
2021-06-15 18:01       ` Marek Szyprowski
2021-06-15 18:01       ` Marek Szyprowski
2021-06-15 18:08       ` Robin Murphy
2021-06-15 18:08         ` Robin Murphy
2021-06-15 18:08         ` Robin Murphy
2021-06-15 18:12       ` Krishna Reddy
2021-06-15 18:12         ` Krishna Reddy
2021-06-15 18:12         ` Krishna Reddy
2021-06-15 18:21         ` Will Deacon
2021-06-15 18:21           ` Will Deacon
2021-06-15 18:21           ` Will Deacon
2021-06-15 19:50           ` Will Deacon
2021-06-15 19:50             ` Will Deacon
2021-06-15 19:50             ` Will Deacon
2021-06-03 16:46 ` [PATCH v3 4/9] iommu/arm-smmu: tegra: Detect number of instances at runtime Thierry Reding
2021-06-03 16:46   ` Thierry Reding
2021-06-03 16:46   ` Thierry Reding
2021-06-03 16:46 ` [PATCH v3 5/9] iommu/arm-smmu: tegra: Implement SID override programming Thierry Reding
2021-06-03 16:46   ` Thierry Reding
2021-06-03 16:46   ` Thierry Reding
2021-06-03 16:46 ` [PATCH v3 6/9] iommu/arm-smmu: Use Tegra implementation on Tegra186 Thierry Reding
2021-06-03 16:46   ` Thierry Reding
2021-06-03 16:46   ` Thierry Reding
2021-06-03 16:46 ` [PATCH v3 7/9] arm64: tegra: Use correct compatible string for Tegra186 SMMU Thierry Reding
2021-06-03 16:46   ` Thierry Reding
2021-06-03 16:46   ` Thierry Reding
2021-06-03 16:46 ` [PATCH v3 8/9] arm64: tegra: Hook up memory controller to SMMU on Tegra186 Thierry Reding
2021-06-03 16:46   ` Thierry Reding
2021-06-03 16:46   ` Thierry Reding
2021-06-03 16:46 ` [PATCH v3 9/9] arm64: tegra: Enable SMMU support on Tegra194 Thierry Reding
2021-06-03 16:46   ` Thierry Reding
2021-06-03 16:46   ` Thierry Reding
2021-06-03 19:51 ` (subset) [PATCH v3 0/9] arm64: tegra: Prevent early SMMU faults Krzysztof Kozlowski
2021-06-03 19:51   ` Krzysztof Kozlowski
2021-06-03 19:51   ` Krzysztof Kozlowski
2021-06-11  6:48 ` Krzysztof Kozlowski
2021-06-11  6:48   ` Krzysztof Kozlowski
2021-06-11  6:48   ` Krzysztof Kozlowski
2021-06-11 12:05   ` Thierry Reding
2021-06-11 12:05     ` Thierry Reding
2021-06-11 12:05     ` Thierry Reding

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