[PATCH v4] acpi/iort: numa: Add numa node mapping for smmuv3 devices

[PATCH v4] acpi/iort: numa: Add numa node mapping for smmuv3 devices

[Ganapatrao Kulkarni]

ARM IORT specification(rev. C) has added  provision to define proximity
domain in SMMUv3 IORT table. Adding required code to parse Proximity
domain and set numa_node of smmv3 platform devices.

Add code to parse proximity domain in SMMUv3 IORT table to
set numa node mapping for smmuv3 devices.

Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@cavium.com>
---

This patch has dependency on header file patch [1], which is
already merged to linux-pm.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/commit/?h=linux-next&id=c944230064eb65e4fa018d86779b4fd200b1d7e7

v4:
  - Fix compilation issue in !CONFIG_NUMA

v3:
  - Addressed Lorenzo Pieralisi comment.

v2:
  - Changed as per Lorenzo Pieralisi and Hanjun Guo suggestions.

v1:
  - Initial patch

 drivers/acpi/arm64/iort.c | 33 +++++++++++++++++++++++++++++++--
 1 file changed, 31 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index a3215ee..c5c82c3 100644
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -908,6 +908,28 @@ static bool __init arm_smmu_v3_is_coherent(struct acpi_iort_node *node)
 	return smmu->flags & ACPI_IORT_SMMU_V3_COHACC_OVERRIDE;
 }
 
+#if defined(CONFIG_ACPI_NUMA) && (ACPI_CA_VERSION >= 0x20170629)
+/*
+ * set numa proximity domain for smmuv3 device
+ */
+static void  __init arm_smmu_v3_set_proximity(struct acpi_iort_node *node,
+		struct device *dev)
+{
+	struct acpi_iort_smmu_v3 *smmu;
+
+	smmu = (struct acpi_iort_smmu_v3 *)node->node_data;
+	if (smmu->flags & ACPI_IORT_SMMU_V3_PXM_VALID) {
+		set_dev_node(dev, acpi_map_pxm_to_node(smmu->pxm));
+		pr_info("SMMUV3[%llx] Mapped to Proximity domain %d\n",
+			smmu->base_address,
+			smmu->pxm);
+	}
+}
+#else
+static void  __init arm_smmu_v3_set_proximity(struct acpi_iort_node *node,
+		struct device *dev) { }
+#endif
+
 static int __init arm_smmu_count_resources(struct acpi_iort_node *node)
 {
 	struct acpi_iort_smmu *smmu;
@@ -977,20 +999,24 @@ struct iort_iommu_config {
 	int (*iommu_count_resources)(struct acpi_iort_node *node);
 	void (*iommu_init_resources)(struct resource *res,
 				     struct acpi_iort_node *node);
+	void (*iommu_set_proximity)(struct acpi_iort_node *node,
+				     struct device *dev);
 };
 
 static const struct iort_iommu_config iort_arm_smmu_v3_cfg __initconst = {
 	.name = "arm-smmu-v3",
 	.iommu_is_coherent = arm_smmu_v3_is_coherent,
 	.iommu_count_resources = arm_smmu_v3_count_resources,
-	.iommu_init_resources = arm_smmu_v3_init_resources
+	.iommu_init_resources = arm_smmu_v3_init_resources,
+	.iommu_set_proximity = arm_smmu_v3_set_proximity
 };
 
 static const struct iort_iommu_config iort_arm_smmu_cfg __initconst = {
 	.name = "arm-smmu",
 	.iommu_is_coherent = arm_smmu_is_coherent,
 	.iommu_count_resources = arm_smmu_count_resources,
-	.iommu_init_resources = arm_smmu_init_resources
+	.iommu_init_resources = arm_smmu_init_resources,
+	.iommu_set_proximity = NULL
 };
 
 static __init
@@ -1028,6 +1054,9 @@ static int __init iort_add_smmu_platform_device(struct acpi_iort_node *node)
 	if (!pdev)
 		return -ENOMEM;
 
+	if (ops->iommu_set_proximity)
+		ops->iommu_set_proximity(node, &pdev->dev);
+
 	count = ops->iommu_count_resources(node);
 
 	r = kcalloc(count, sizeof(*r), GFP_KERNEL);
-- 
2.9.4

[PATCH v4] acpi/iort: numa: Add numa node mapping for smmuv3 devices

[Robert Richter]

On 25.07.17 10:32:37, Ganapatrao Kulkarni wrote:
> ARM IORT specification(rev. C) has added  provision to define proximity
> domain in SMMUv3 IORT table. Adding required code to parse Proximity
> domain and set numa_node of smmv3 platform devices.
> 
> Add code to parse proximity domain in SMMUv3 IORT table to
> set numa node mapping for smmuv3 devices.
> 
> Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@cavium.com>
> ---
> 
> This patch has dependency on header file patch [1], which is
> already merged to linux-pm.
> 
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/commit/?h=linux-next&id=c944230064eb65e4fa018d86779b4fd200b1d7e7
> 
> v4:
>   - Fix compilation issue in !CONFIG_NUMA
> 
> v3:
>   - Addressed Lorenzo Pieralisi comment.
> 
> v2:
>   - Changed as per Lorenzo Pieralisi and Hanjun Guo suggestions.
> 
> v1:
>   - Initial patch
> 
>  drivers/acpi/arm64/iort.c | 33 +++++++++++++++++++++++++++++++--
>  1 file changed, 31 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
> index a3215ee..c5c82c3 100644
> --- a/drivers/acpi/arm64/iort.c
> +++ b/drivers/acpi/arm64/iort.c
> @@ -908,6 +908,28 @@ static bool __init arm_smmu_v3_is_coherent(struct acpi_iort_node *node)
>  	return smmu->flags & ACPI_IORT_SMMU_V3_COHACC_OVERRIDE;
>  }
>  
> +#if defined(CONFIG_ACPI_NUMA) && (ACPI_CA_VERSION >= 0x20170629)

This acpica version check was very unhandy for backports when we did
this last time. If we backport just c944230064 and this single patch
it wont work as the version check prevents the code from being
enabled. Isn't there another way to handle cross tree dependencies of
pull requests? E.g. we could base this patch on acpica (ab539eaa50)
and remove the check.

Alternatively we could do in this case:

#if defined(CONFIG_ACPI_NUMA) && defined(ACPI_IORT_SMMU_V3_PXM_VALID)

> +/*
> + * set numa proximity domain for smmuv3 device
> + */
> +static void  __init arm_smmu_v3_set_proximity(struct acpi_iort_node *node,
> +		struct device *dev)
> +{
> +	struct acpi_iort_smmu_v3 *smmu;
> +
> +	smmu = (struct acpi_iort_smmu_v3 *)node->node_data;
> +	if (smmu->flags & ACPI_IORT_SMMU_V3_PXM_VALID) {
> +		set_dev_node(dev, acpi_map_pxm_to_node(smmu->pxm));
> +		pr_info("SMMUV3[%llx] Mapped to Proximity domain %d\n",

Better use dev_info() here.

> +			smmu->base_address,
> +			smmu->pxm);
> +	}
> +}
> +#else
> +static void  __init arm_smmu_v3_set_proximity(struct acpi_iort_node *node,
> +		struct device *dev) { }

Just do:

#define arm_smmu_v3_set_proximity NULL

> +#endif
> +
>  static int __init arm_smmu_count_resources(struct acpi_iort_node *node)
>  {
>  	struct acpi_iort_smmu *smmu;
> @@ -977,20 +999,24 @@ struct iort_iommu_config {
>  	int (*iommu_count_resources)(struct acpi_iort_node *node);
>  	void (*iommu_init_resources)(struct resource *res,
>  				     struct acpi_iort_node *node);
> +	void (*iommu_set_proximity)(struct acpi_iort_node *node,
> +				     struct device *dev);

Wrt pseudo-OO programming this is more a method for struct dev than
node, so swap args: iommu_set_proximity(dev, node)

>  };
>  
>  static const struct iort_iommu_config iort_arm_smmu_v3_cfg __initconst = {
>  	.name = "arm-smmu-v3",
>  	.iommu_is_coherent = arm_smmu_v3_is_coherent,
>  	.iommu_count_resources = arm_smmu_v3_count_resources,
> -	.iommu_init_resources = arm_smmu_v3_init_resources
> +	.iommu_init_resources = arm_smmu_v3_init_resources,
> +	.iommu_set_proximity = arm_smmu_v3_set_proximity

Add comma at the end here.

>  };
>  
>  static const struct iort_iommu_config iort_arm_smmu_cfg __initconst = {
>  	.name = "arm-smmu",
>  	.iommu_is_coherent = arm_smmu_is_coherent,
>  	.iommu_count_resources = arm_smmu_count_resources,
> -	.iommu_init_resources = arm_smmu_init_resources
> +	.iommu_init_resources = arm_smmu_init_resources,
> +	.iommu_set_proximity = NULL

No need for null assignment.

-Robert

>  };
>  
>  static __init
> @@ -1028,6 +1054,9 @@ static int __init iort_add_smmu_platform_device(struct acpi_iort_node *node)
>  	if (!pdev)
>  		return -ENOMEM;
>  
> +	if (ops->iommu_set_proximity)
> +		ops->iommu_set_proximity(node, &pdev->dev);
> +
>  	count = ops->iommu_count_resources(node);
>  
>  	r = kcalloc(count, sizeof(*r), GFP_KERNEL);
> -- 
> 2.9.4
> 

[PATCH v4] acpi/iort: numa: Add numa node mapping for smmuv3 devices

[Lorenzo Pieralisi]

On Tue, Jul 25, 2017 at 05:13:05PM +0200, Robert Richter wrote:
> On 25.07.17 10:32:37, Ganapatrao Kulkarni wrote:
> > ARM IORT specification(rev. C) has added  provision to define proximity
> > domain in SMMUv3 IORT table. Adding required code to parse Proximity
> > domain and set numa_node of smmv3 platform devices.
> > 
> > Add code to parse proximity domain in SMMUv3 IORT table to
> > set numa node mapping for smmuv3 devices.
> > 
> > Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@cavium.com>
> > ---
> > 
> > This patch has dependency on header file patch [1], which is
> > already merged to linux-pm.
> > 
> > [1] https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/commit/?h=linux-next&id=c944230064eb65e4fa018d86779b4fd200b1d7e7
> > 
> > v4:
> >   - Fix compilation issue in !CONFIG_NUMA
> > 
> > v3:
> >   - Addressed Lorenzo Pieralisi comment.
> > 
> > v2:
> >   - Changed as per Lorenzo Pieralisi and Hanjun Guo suggestions.
> > 
> > v1:
> >   - Initial patch
> > 
> >  drivers/acpi/arm64/iort.c | 33 +++++++++++++++++++++++++++++++--
> >  1 file changed, 31 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
> > index a3215ee..c5c82c3 100644
> > --- a/drivers/acpi/arm64/iort.c
> > +++ b/drivers/acpi/arm64/iort.c
> > @@ -908,6 +908,28 @@ static bool __init arm_smmu_v3_is_coherent(struct acpi_iort_node *node)
> >  	return smmu->flags & ACPI_IORT_SMMU_V3_COHACC_OVERRIDE;
> >  }
> >  
> > +#if defined(CONFIG_ACPI_NUMA) && (ACPI_CA_VERSION >= 0x20170629)
> 
> This acpica version check was very unhandy for backports when we did
> this last time. If we backport just c944230064 and this single patch
> it wont work as the version check prevents the code from being
> enabled. Isn't there another way to handle cross tree dependencies of
> pull requests? E.g. we could base this patch on acpica (ab539eaa50)
> and remove the check.

I think I will send this patch (and other IORT ones) via arm64,
if acpica goes via the ACPI tree I do not think there is much else
we can do (that is not complicated).

> Alternatively we could do in this case:
> 
> #if defined(CONFIG_ACPI_NUMA) && defined(ACPI_IORT_SMMU_V3_PXM_VALID)

This would do, agreed on all other changes requested, I will send it
to Catalin as soon as I collect all IORT patches for v4.14.

Thanks !
Lorenzo

> > +/*
> > + * set numa proximity domain for smmuv3 device
> > + */
> > +static void  __init arm_smmu_v3_set_proximity(struct acpi_iort_node *node,
> > +		struct device *dev)
> > +{
> > +	struct acpi_iort_smmu_v3 *smmu;
> > +
> > +	smmu = (struct acpi_iort_smmu_v3 *)node->node_data;
> > +	if (smmu->flags & ACPI_IORT_SMMU_V3_PXM_VALID) {
> > +		set_dev_node(dev, acpi_map_pxm_to_node(smmu->pxm));
> > +		pr_info("SMMUV3[%llx] Mapped to Proximity domain %d\n",
> 
> Better use dev_info() here.
> 
> > +			smmu->base_address,
> > +			smmu->pxm);
> > +	}
> > +}
> > +#else
> > +static void  __init arm_smmu_v3_set_proximity(struct acpi_iort_node *node,
> > +		struct device *dev) { }
> 
> Just do:
> 
> #define arm_smmu_v3_set_proximity NULL
> 
> > +#endif
> > +
> >  static int __init arm_smmu_count_resources(struct acpi_iort_node *node)
> >  {
> >  	struct acpi_iort_smmu *smmu;
> > @@ -977,20 +999,24 @@ struct iort_iommu_config {
> >  	int (*iommu_count_resources)(struct acpi_iort_node *node);
> >  	void (*iommu_init_resources)(struct resource *res,
> >  				     struct acpi_iort_node *node);
> > +	void (*iommu_set_proximity)(struct acpi_iort_node *node,
> > +				     struct device *dev);
> 
> Wrt pseudo-OO programming this is more a method for struct dev than
> node, so swap args: iommu_set_proximity(dev, node)
> 
> >  };
> >  
> >  static const struct iort_iommu_config iort_arm_smmu_v3_cfg __initconst = {
> >  	.name = "arm-smmu-v3",
> >  	.iommu_is_coherent = arm_smmu_v3_is_coherent,
> >  	.iommu_count_resources = arm_smmu_v3_count_resources,
> > -	.iommu_init_resources = arm_smmu_v3_init_resources
> > +	.iommu_init_resources = arm_smmu_v3_init_resources,
> > +	.iommu_set_proximity = arm_smmu_v3_set_proximity
> 
> Add comma at the end here.
> 
> >  };
> >  
> >  static const struct iort_iommu_config iort_arm_smmu_cfg __initconst = {
> >  	.name = "arm-smmu",
> >  	.iommu_is_coherent = arm_smmu_is_coherent,
> >  	.iommu_count_resources = arm_smmu_count_resources,
> > -	.iommu_init_resources = arm_smmu_init_resources
> > +	.iommu_init_resources = arm_smmu_init_resources,
> > +	.iommu_set_proximity = NULL
> 
> No need for null assignment.
> 
> -Robert
> 
> >  };
> >  
> >  static __init
> > @@ -1028,6 +1054,9 @@ static int __init iort_add_smmu_platform_device(struct acpi_iort_node *node)
> >  	if (!pdev)
> >  		return -ENOMEM;
> >  
> > +	if (ops->iommu_set_proximity)
> > +		ops->iommu_set_proximity(node, &pdev->dev);
> > +
> >  	count = ops->iommu_count_resources(node);
> >  
> >  	r = kcalloc(count, sizeof(*r), GFP_KERNEL);
> > -- 
> > 2.9.4
> > 

[PATCH v4] acpi/iort: numa: Add numa node mapping for smmuv3 devices

[Lorenzo Pieralisi]

On Tue, Jul 25, 2017 at 05:13:05PM +0200, Robert Richter wrote:
> On 25.07.17 10:32:37, Ganapatrao Kulkarni wrote:
> > ARM IORT specification(rev. C) has added  provision to define proximity
> > domain in SMMUv3 IORT table. Adding required code to parse Proximity
> > domain and set numa_node of smmv3 platform devices.
> > 
> > Add code to parse proximity domain in SMMUv3 IORT table to
> > set numa node mapping for smmuv3 devices.
> > 
> > Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@cavium.com>
> > ---
> > 
> > This patch has dependency on header file patch [1], which is
> > already merged to linux-pm.
> > 
> > [1] https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/commit/?h=linux-next&id=c944230064eb65e4fa018d86779b4fd200b1d7e7
> > 
> > v4:
> >   - Fix compilation issue in !CONFIG_NUMA
> > 
> > v3:
> >   - Addressed Lorenzo Pieralisi comment.
> > 
> > v2:
> >   - Changed as per Lorenzo Pieralisi and Hanjun Guo suggestions.
> > 
> > v1:
> >   - Initial patch
> > 
> >  drivers/acpi/arm64/iort.c | 33 +++++++++++++++++++++++++++++++--
> >  1 file changed, 31 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
> > index a3215ee..c5c82c3 100644
> > --- a/drivers/acpi/arm64/iort.c
> > +++ b/drivers/acpi/arm64/iort.c
> > @@ -908,6 +908,28 @@ static bool __init arm_smmu_v3_is_coherent(struct acpi_iort_node *node)
> >  	return smmu->flags & ACPI_IORT_SMMU_V3_COHACC_OVERRIDE;
> >  }
> >  
> > +#if defined(CONFIG_ACPI_NUMA) && (ACPI_CA_VERSION >= 0x20170629)
> 
> This acpica version check was very unhandy for backports when we did
> this last time. If we backport just c944230064 and this single patch
> it wont work as the version check prevents the code from being
> enabled. Isn't there another way to handle cross tree dependencies of
> pull requests? E.g. we could base this patch on acpica (ab539eaa50)
> and remove the check.
> 
> Alternatively we could do in this case:
> 
> #if defined(CONFIG_ACPI_NUMA) && defined(ACPI_IORT_SMMU_V3_PXM_VALID)
> 
> > +/*
> > + * set numa proximity domain for smmuv3 device
> > + */
> > +static void  __init arm_smmu_v3_set_proximity(struct acpi_iort_node *node,
> > +		struct device *dev)
> > +{
> > +	struct acpi_iort_smmu_v3 *smmu;
> > +
> > +	smmu = (struct acpi_iort_smmu_v3 *)node->node_data;
> > +	if (smmu->flags & ACPI_IORT_SMMU_V3_PXM_VALID) {
> > +		set_dev_node(dev, acpi_map_pxm_to_node(smmu->pxm));
> > +		pr_info("SMMUV3[%llx] Mapped to Proximity domain %d\n",
> 
> Better use dev_info() here.
> 
> > +			smmu->base_address,
> > +			smmu->pxm);
> > +	}
> > +}
> > +#else
> > +static void  __init arm_smmu_v3_set_proximity(struct acpi_iort_node *node,
> > +		struct device *dev) { }
> 
> Just do:
> 
> #define arm_smmu_v3_set_proximity NULL
> 
> > +#endif
> > +
> >  static int __init arm_smmu_count_resources(struct acpi_iort_node *node)
> >  {
> >  	struct acpi_iort_smmu *smmu;
> > @@ -977,20 +999,24 @@ struct iort_iommu_config {
> >  	int (*iommu_count_resources)(struct acpi_iort_node *node);
> >  	void (*iommu_init_resources)(struct resource *res,
> >  				     struct acpi_iort_node *node);
> > +	void (*iommu_set_proximity)(struct acpi_iort_node *node,
> > +				     struct device *dev);
> 
> Wrt pseudo-OO programming this is more a method for struct dev than
> node, so swap args: iommu_set_proximity(dev, node)
> 
> >  };
> >  
> >  static const struct iort_iommu_config iort_arm_smmu_v3_cfg __initconst = {
> >  	.name = "arm-smmu-v3",
> >  	.iommu_is_coherent = arm_smmu_v3_is_coherent,
> >  	.iommu_count_resources = arm_smmu_v3_count_resources,
> > -	.iommu_init_resources = arm_smmu_v3_init_resources
> > +	.iommu_init_resources = arm_smmu_v3_init_resources,
> > +	.iommu_set_proximity = arm_smmu_v3_set_proximity
> 
> Add comma at the end here.
> 
> >  };
> >  
> >  static const struct iort_iommu_config iort_arm_smmu_cfg __initconst = {
> >  	.name = "arm-smmu",
> >  	.iommu_is_coherent = arm_smmu_is_coherent,
> >  	.iommu_count_resources = arm_smmu_count_resources,
> > -	.iommu_init_resources = arm_smmu_init_resources
> > +	.iommu_init_resources = arm_smmu_init_resources,
> > +	.iommu_set_proximity = NULL
> 
> No need for null assignment.

Patch that I will send upstream below, please check, thanks.

-- >8 --
Subject: [PATCH] ACPI/IORT: numa: Add numa node mapping for smmuv3 devices

ARM IORT specification(rev. C) has added  provision to define proximity
domain in SMMUv3 IORT table. Adding required code to parse Proximity
domain and set numa_node of smmv3 platform devices.

Add code to parse proximity domain in SMMUv3 IORT table to
set numa node mapping for smmuv3 devices.

Link: http://lkml.kernel.org/r/20170706112017.GA16981 at rric.localdomain
Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@cavium.com>
[lorenzo.pieralisi at arm.com: updated review comments]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
---
 drivers/acpi/arm64/iort.c | 29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index a3215ee..35dd803 100644
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -908,6 +908,27 @@ static bool __init arm_smmu_v3_is_coherent(struct acpi_iort_node *node)
 	return smmu->flags & ACPI_IORT_SMMU_V3_COHACC_OVERRIDE;
 }
 
+#if defined(CONFIG_ACPI_NUMA) && defined(ACPI_IORT_SMMU_v3_PXM_VALID)
+/*
+ * set numa proximity domain for smmuv3 device
+ */
+static void  __init arm_smmu_v3_set_proximity(struct device *dev,
+					      struct acpi_iort_node *node)
+{
+	struct acpi_iort_smmu_v3 *smmu;
+
+	smmu = (struct acpi_iort_smmu_v3 *)node->node_data;
+	if (smmu->flags & ACPI_IORT_SMMU_V3_PXM_VALID) {
+		set_dev_node(dev, acpi_map_pxm_to_node(smmu->pxm));
+		dev_info(dev, "SMMUV3[%llx] Mapped to Proximity domain %d\n",
+			smmu->base_address,
+			smmu->pxm);
+	}
+}
+#else
+#define arm_smmu_v3_set_proximity NULL
+#endif
+
 static int __init arm_smmu_count_resources(struct acpi_iort_node *node)
 {
 	struct acpi_iort_smmu *smmu;
@@ -977,13 +998,16 @@ struct iort_iommu_config {
 	int (*iommu_count_resources)(struct acpi_iort_node *node);
 	void (*iommu_init_resources)(struct resource *res,
 				     struct acpi_iort_node *node);
+	void (*iommu_set_proximity)(struct device *dev,
+				    struct acpi_iort_node *node);
 };
 
 static const struct iort_iommu_config iort_arm_smmu_v3_cfg __initconst = {
 	.name = "arm-smmu-v3",
 	.iommu_is_coherent = arm_smmu_v3_is_coherent,
 	.iommu_count_resources = arm_smmu_v3_count_resources,
-	.iommu_init_resources = arm_smmu_v3_init_resources
+	.iommu_init_resources = arm_smmu_v3_init_resources,
+	.iommu_set_proximity = arm_smmu_v3_set_proximity,
 };
 
 static const struct iort_iommu_config iort_arm_smmu_cfg __initconst = {
@@ -1028,6 +1052,9 @@ static int __init iort_add_smmu_platform_device(struct acpi_iort_node *node)
 	if (!pdev)
 		return -ENOMEM;
 
+	if (ops->iommu_set_proximity)
+		ops->iommu_set_proximity(&pdev->dev, node);
+
 	count = ops->iommu_count_resources(node);
 
 	r = kcalloc(count, sizeof(*r), GFP_KERNEL);
-- 
2.10.0

[PATCH v4] acpi/iort: numa: Add numa node mapping for smmuv3 devices

[Hanjun Guo]

On 2017/8/3 0:21, Lorenzo Pieralisi wrote:
> Patch that I will send upstream below, please check, thanks.
>
> -- >8 --
> Subject: [PATCH] ACPI/IORT: numa: Add numa node mapping for smmuv3 devices
>
> ARM IORT specification(rev. C) has added  provision to define proximity
> domain in SMMUv3 IORT table. Adding required code to parse Proximity
> domain and set numa_node of smmv3 platform devices.
>
> Add code to parse proximity domain in SMMUv3 IORT table to
> set numa node mapping for smmuv3 devices.
>
> Link: http://lkml.kernel.org/r/20170706112017.GA16981 at rric.localdomain
> Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@cavium.com>
> [lorenzo.pieralisi at arm.com: updated review comments]
> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> ---
>  drivers/acpi/arm64/iort.c | 29 ++++++++++++++++++++++++++++-
>  1 file changed, 28 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
> index a3215ee..35dd803 100644
> --- a/drivers/acpi/arm64/iort.c
> +++ b/drivers/acpi/arm64/iort.c
> @@ -908,6 +908,27 @@ static bool __init arm_smmu_v3_is_coherent(struct acpi_iort_node *node)
>  	return smmu->flags & ACPI_IORT_SMMU_V3_COHACC_OVERRIDE;
>  }
>  
> +#if defined(CONFIG_ACPI_NUMA) && defined(ACPI_IORT_SMMU_v3_PXM_VALID)

Typo here, s/v3/V3, wit this typo, smmu proximity callback will be set to NULL.

> +/*
> + * set numa proximity domain for smmuv3 device
> + */
> +static void  __init arm_smmu_v3_set_proximity(struct device *dev,
> +					      struct acpi_iort_node *node)
> +{
> +	struct acpi_iort_smmu_v3 *smmu;
> +
> +	smmu = (struct acpi_iort_smmu_v3 *)node->node_data;
> +	if (smmu->flags & ACPI_IORT_SMMU_V3_PXM_VALID) {
> +		set_dev_node(dev, acpi_map_pxm_to_node(smmu->pxm));
> +		dev_info(dev, "SMMUV3[%llx] Mapped to Proximity domain %d\n",
> +			smmu->base_address,
> +			smmu->pxm);

Here I got:

[    5.074246]  (null): SMMUV3[a0040000] Mapped to Proximity domain 0
[    5.074296]  (null): SMMUV3[700a0040000] Mapped to Proximity domain 2
[    5.074319]  (null): SMMUV3[c0040000] Mapped to Proximity domain 0
[    5.074344]  (null): SMMUV3[8a0040000] Mapped to Proximity domain 1
[    5.074368]  (null): SMMUV3[600a0040000] Mapped to Proximity domain 2

SMMU is probed via static table (IORT) , so no proper name before it
fully probed.

Can we just use pr_info here to remove the meaningless (null), or
we give the SMMU a proper name?

Thanks
Hanjun

> +	}
> +}
> +#else
> +#define arm_smmu_v3_set_proximity NULL
> +#endif
> +
>  static int __init arm_smmu_count_resources(struct acpi_iort_node *node)
>  {
>  	struct acpi_iort_smmu *smmu;
> @@ -977,13 +998,16 @@ struct iort_iommu_config {
>  	int (*iommu_count_resources)(struct acpi_iort_node *node);
>  	void (*iommu_init_resources)(struct resource *res,
>  				     struct acpi_iort_node *node);
> +	void (*iommu_set_proximity)(struct device *dev,
> +				    struct acpi_iort_node *node);
>  };
>  
>  static const struct iort_iommu_config iort_arm_smmu_v3_cfg __initconst = {
>  	.name = "arm-smmu-v3",
>  	.iommu_is_coherent = arm_smmu_v3_is_coherent,
>  	.iommu_count_resources = arm_smmu_v3_count_resources,
> -	.iommu_init_resources = arm_smmu_v3_init_resources
> +	.iommu_init_resources = arm_smmu_v3_init_resources,
> +	.iommu_set_proximity = arm_smmu_v3_set_proximity,
>  };
>  
>  static const struct iort_iommu_config iort_arm_smmu_cfg __initconst = {
> @@ -1028,6 +1052,9 @@ static int __init iort_add_smmu_platform_device(struct acpi_iort_node *node)
>  	if (!pdev)
>  		return -ENOMEM;
>  
> +	if (ops->iommu_set_proximity)
> +		ops->iommu_set_proximity(&pdev->dev, node);
> +
>  	count = ops->iommu_count_resources(node);
>  
>  	r = kcalloc(count, sizeof(*r), GFP_KERNEL);

[PATCH v4] acpi/iort: numa: Add numa node mapping for smmuv3 devices

[Hanjun Guo]

On 2017/8/3 21:35, Hanjun Guo wrote:
> On 2017/8/3 0:21, Lorenzo Pieralisi wrote:
>> > Patch that I will send upstream below, please check, thanks.
>> >
>> > -- >8 --
>> > Subject: [PATCH] ACPI/IORT: numa: Add numa node mapping for smmuv3 devices
>> >
>> > ARM IORT specification(rev. C) has added  provision to define proximity
>> > domain in SMMUv3 IORT table. Adding required code to parse Proximity
>> > domain and set numa_node of smmv3 platform devices.
>> >
>> > Add code to parse proximity domain in SMMUv3 IORT table to
>> > set numa node mapping for smmuv3 devices.
>> >
>> > Link: http://lkml.kernel.org/r/20170706112017.GA16981 at rric.localdomain
>> > Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@cavium.com>
>> > [lorenzo.pieralisi at arm.com: updated review comments]
>> > Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
>> > ---
>> >  drivers/acpi/arm64/iort.c | 29 ++++++++++++++++++++++++++++-
>> >  1 file changed, 28 insertions(+), 1 deletion(-)
>> >
>> > diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
>> > index a3215ee..35dd803 100644
>> > --- a/drivers/acpi/arm64/iort.c
>> > +++ b/drivers/acpi/arm64/iort.c
>> > @@ -908,6 +908,27 @@ static bool __init arm_smmu_v3_is_coherent(struct acpi_iort_node *node)
>> >  	return smmu->flags & ACPI_IORT_SMMU_V3_COHACC_OVERRIDE;
>> >  }
>> >  
>> > +#if defined(CONFIG_ACPI_NUMA) && defined(ACPI_IORT_SMMU_v3_PXM_VALID)
> Typo here, s/v3/V3, wit this typo, smmu proximity callback will be set to NULL.
>
>> > +/*
>> > + * set numa proximity domain for smmuv3 device
>> > + */
>> > +static void  __init arm_smmu_v3_set_proximity(struct device *dev,
>> > +					      struct acpi_iort_node *node)
>> > +{
>> > +	struct acpi_iort_smmu_v3 *smmu;
>> > +
>> > +	smmu = (struct acpi_iort_smmu_v3 *)node->node_data;
>> > +	if (smmu->flags & ACPI_IORT_SMMU_V3_PXM_VALID) {
>> > +		set_dev_node(dev, acpi_map_pxm_to_node(smmu->pxm));
>> > +		dev_info(dev, "SMMUV3[%llx] Mapped to Proximity domain %d\n",
>> > +			smmu->base_address,
>> > +			smmu->pxm);
> Here I got:
>
> [    5.074246]  (null): SMMUV3[a0040000] Mapped to Proximity domain 0
> [    5.074296]  (null): SMMUV3[700a0040000] Mapped to Proximity domain 2
> [    5.074319]  (null): SMMUV3[c0040000] Mapped to Proximity domain 0
> [    5.074344]  (null): SMMUV3[8a0040000] Mapped to Proximity domain 1
> [    5.074368]  (null): SMMUV3[600a0040000] Mapped to Proximity domain 2

And SMMU-v3 or SMMUv3 is better I think.

Thanks
Hanjun

[PATCH v4] acpi/iort: numa: Add numa node mapping for smmuv3 devices

[Lorenzo Pieralisi]

On Thu, Aug 03, 2017 at 09:35:45PM +0800, Hanjun Guo wrote:
> On 2017/8/3 0:21, Lorenzo Pieralisi wrote:
> > Patch that I will send upstream below, please check, thanks.
> >
> > -- >8 --
> > Subject: [PATCH] ACPI/IORT: numa: Add numa node mapping for smmuv3 devices
> >
> > ARM IORT specification(rev. C) has added  provision to define proximity
> > domain in SMMUv3 IORT table. Adding required code to parse Proximity
> > domain and set numa_node of smmv3 platform devices.
> >
> > Add code to parse proximity domain in SMMUv3 IORT table to
> > set numa node mapping for smmuv3 devices.
> >
> > Link: http://lkml.kernel.org/r/20170706112017.GA16981 at rric.localdomain
> > Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@cavium.com>
> > [lorenzo.pieralisi at arm.com: updated review comments]
> > Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> > ---
> >  drivers/acpi/arm64/iort.c | 29 ++++++++++++++++++++++++++++-
> >  1 file changed, 28 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
> > index a3215ee..35dd803 100644
> > --- a/drivers/acpi/arm64/iort.c
> > +++ b/drivers/acpi/arm64/iort.c
> > @@ -908,6 +908,27 @@ static bool __init arm_smmu_v3_is_coherent(struct acpi_iort_node *node)
> >  	return smmu->flags & ACPI_IORT_SMMU_V3_COHACC_OVERRIDE;
> >  }
> >  
> > +#if defined(CONFIG_ACPI_NUMA) && defined(ACPI_IORT_SMMU_v3_PXM_VALID)
> 
> Typo here, s/v3/V3, wit this typo, smmu proximity callback will be set to NULL.
> 
> > +/*
> > + * set numa proximity domain for smmuv3 device
> > + */
> > +static void  __init arm_smmu_v3_set_proximity(struct device *dev,
> > +					      struct acpi_iort_node *node)
> > +{
> > +	struct acpi_iort_smmu_v3 *smmu;
> > +
> > +	smmu = (struct acpi_iort_smmu_v3 *)node->node_data;
> > +	if (smmu->flags & ACPI_IORT_SMMU_V3_PXM_VALID) {
> > +		set_dev_node(dev, acpi_map_pxm_to_node(smmu->pxm));
> > +		dev_info(dev, "SMMUV3[%llx] Mapped to Proximity domain %d\n",
> > +			smmu->base_address,
> > +			smmu->pxm);
> 
> Here I got:
> 
> [    5.074246]  (null): SMMUV3[a0040000] Mapped to Proximity domain 0
> [    5.074296]  (null): SMMUV3[700a0040000] Mapped to Proximity domain 2
> [    5.074319]  (null): SMMUV3[c0040000] Mapped to Proximity domain 0
> [    5.074344]  (null): SMMUV3[8a0040000] Mapped to Proximity domain 1
> [    5.074368]  (null): SMMUV3[600a0040000] Mapped to Proximity domain 2
> 
> SMMU is probed via static table (IORT) , so no proper name before it
> fully probed.
> 
> Can we just use pr_info here to remove the meaningless (null), or
> we give the SMMU a proper name?

Yes on both counts, Ganapatrao sent me offline a fixed-up patch that I
will send upstream with the two changes you requested.

Thanks for checking anyway.

Lorenzo

> 
> Thanks
> Hanjun
> 
> > +	}
> > +}
> > +#else
> > +#define arm_smmu_v3_set_proximity NULL
> > +#endif
> > +
> >  static int __init arm_smmu_count_resources(struct acpi_iort_node *node)
> >  {
> >  	struct acpi_iort_smmu *smmu;
> > @@ -977,13 +998,16 @@ struct iort_iommu_config {
> >  	int (*iommu_count_resources)(struct acpi_iort_node *node);
> >  	void (*iommu_init_resources)(struct resource *res,
> >  				     struct acpi_iort_node *node);
> > +	void (*iommu_set_proximity)(struct device *dev,
> > +				    struct acpi_iort_node *node);
> >  };
> >  
> >  static const struct iort_iommu_config iort_arm_smmu_v3_cfg __initconst = {
> >  	.name = "arm-smmu-v3",
> >  	.iommu_is_coherent = arm_smmu_v3_is_coherent,
> >  	.iommu_count_resources = arm_smmu_v3_count_resources,
> > -	.iommu_init_resources = arm_smmu_v3_init_resources
> > +	.iommu_init_resources = arm_smmu_v3_init_resources,
> > +	.iommu_set_proximity = arm_smmu_v3_set_proximity,
> >  };
> >  
> >  static const struct iort_iommu_config iort_arm_smmu_cfg __initconst = {
> > @@ -1028,6 +1052,9 @@ static int __init iort_add_smmu_platform_device(struct acpi_iort_node *node)
> >  	if (!pdev)
> >  		return -ENOMEM;
> >  
> > +	if (ops->iommu_set_proximity)
> > +		ops->iommu_set_proximity(&pdev->dev, node);
> > +
> >  	count = ops->iommu_count_resources(node);
> >  
> >  	r = kcalloc(count, sizeof(*r), GFP_KERNEL);
> 
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
> the body of a message to majordomo at vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

[PATCH v4] acpi/iort: numa: Add numa node mapping for smmuv3 devices

[Robert Richter]

Lorenzo, Will,

On 25.07.17 10:32:37, Ganapatrao Kulkarni wrote:
> ARM IORT specification(rev. C) has added  provision to define proximity
> domain in SMMUv3 IORT table. Adding required code to parse Proximity
> domain and set numa_node of smmv3 platform devices.
> 
> Add code to parse proximity domain in SMMUv3 IORT table to
> set numa node mapping for smmuv3 devices.
> 
> Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@cavium.com>
> ---
> 
> This patch has dependency on header file patch [1], which is
> already merged to linux-pm.
> 
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/commit/?h=linux-next&id=c944230064eb65e4fa018d86779b4fd200b1d7e7
> 
> v4:
>   - Fix compilation issue in !CONFIG_NUMA
> 
> v3:
>   - Addressed Lorenzo Pieralisi comment.
> 
> v2:
>   - Changed as per Lorenzo Pieralisi and Hanjun Guo suggestions.
> 
> v1:
>   - Initial patch
> 
>  drivers/acpi/arm64/iort.c | 33 +++++++++++++++++++++++++++++++--
>  1 file changed, 31 insertions(+), 2 deletions(-)

could this patch being scheduled for v4.14?

Thanks,

-Robert

> 
> diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
> index a3215ee..c5c82c3 100644
> --- a/drivers/acpi/arm64/iort.c
> +++ b/drivers/acpi/arm64/iort.c
> @@ -908,6 +908,28 @@ static bool __init arm_smmu_v3_is_coherent(struct acpi_iort_node *node)
>  	return smmu->flags & ACPI_IORT_SMMU_V3_COHACC_OVERRIDE;
>  }
>  
> +#if defined(CONFIG_ACPI_NUMA) && (ACPI_CA_VERSION >= 0x20170629)
> +/*
> + * set numa proximity domain for smmuv3 device
> + */
> +static void  __init arm_smmu_v3_set_proximity(struct acpi_iort_node *node,
> +		struct device *dev)
> +{
> +	struct acpi_iort_smmu_v3 *smmu;
> +
> +	smmu = (struct acpi_iort_smmu_v3 *)node->node_data;
> +	if (smmu->flags & ACPI_IORT_SMMU_V3_PXM_VALID) {
> +		set_dev_node(dev, acpi_map_pxm_to_node(smmu->pxm));
> +		pr_info("SMMUV3[%llx] Mapped to Proximity domain %d\n",
> +			smmu->base_address,
> +			smmu->pxm);
> +	}
> +}
> +#else
> +static void  __init arm_smmu_v3_set_proximity(struct acpi_iort_node *node,
> +		struct device *dev) { }
> +#endif
> +
>  static int __init arm_smmu_count_resources(struct acpi_iort_node *node)
>  {
>  	struct acpi_iort_smmu *smmu;
> @@ -977,20 +999,24 @@ struct iort_iommu_config {
>  	int (*iommu_count_resources)(struct acpi_iort_node *node);
>  	void (*iommu_init_resources)(struct resource *res,
>  				     struct acpi_iort_node *node);
> +	void (*iommu_set_proximity)(struct acpi_iort_node *node,
> +				     struct device *dev);
>  };
>  
>  static const struct iort_iommu_config iort_arm_smmu_v3_cfg __initconst = {
>  	.name = "arm-smmu-v3",
>  	.iommu_is_coherent = arm_smmu_v3_is_coherent,
>  	.iommu_count_resources = arm_smmu_v3_count_resources,
> -	.iommu_init_resources = arm_smmu_v3_init_resources
> +	.iommu_init_resources = arm_smmu_v3_init_resources,
> +	.iommu_set_proximity = arm_smmu_v3_set_proximity
>  };
>  
>  static const struct iort_iommu_config iort_arm_smmu_cfg __initconst = {
>  	.name = "arm-smmu",
>  	.iommu_is_coherent = arm_smmu_is_coherent,
>  	.iommu_count_resources = arm_smmu_count_resources,
> -	.iommu_init_resources = arm_smmu_init_resources
> +	.iommu_init_resources = arm_smmu_init_resources,
> +	.iommu_set_proximity = NULL
>  };
>  
>  static __init
> @@ -1028,6 +1054,9 @@ static int __init iort_add_smmu_platform_device(struct acpi_iort_node *node)
>  	if (!pdev)
>  		return -ENOMEM;
>  
> +	if (ops->iommu_set_proximity)
> +		ops->iommu_set_proximity(node, &pdev->dev);
> +
>  	count = ops->iommu_count_resources(node);
>  
>  	r = kcalloc(count, sizeof(*r), GFP_KERNEL);
> -- 
> 2.9.4
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
> the body of a message to majordomo at vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

[PATCH v4] acpi/iort: numa: Add numa node mapping for smmuv3 devices

[Lorenzo Pieralisi]

On Tue, Aug 15, 2017 at 05:02:13PM +0200, Robert Richter wrote:
> Lorenzo, Will,
> 
> On 25.07.17 10:32:37, Ganapatrao Kulkarni wrote:
> > ARM IORT specification(rev. C) has added  provision to define proximity
> > domain in SMMUv3 IORT table. Adding required code to parse Proximity
> > domain and set numa_node of smmv3 platform devices.
> > 
> > Add code to parse proximity domain in SMMUv3 IORT table to
> > set numa node mapping for smmuv3 devices.
> > 
> > Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@cavium.com>
> > ---
> > 
> > This patch has dependency on header file patch [1], which is
> > already merged to linux-pm.
> > 
> > [1] https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/commit/?h=linux-next&id=c944230064eb65e4fa018d86779b4fd200b1d7e7
> > 
> > v4:
> >   - Fix compilation issue in !CONFIG_NUMA
> > 
> > v3:
> >   - Addressed Lorenzo Pieralisi comment.
> > 
> > v2:
> >   - Changed as per Lorenzo Pieralisi and Hanjun Guo suggestions.
> > 
> > v1:
> >   - Initial patch
> > 
> >  drivers/acpi/arm64/iort.c | 33 +++++++++++++++++++++++++++++++--
> >  1 file changed, 31 insertions(+), 2 deletions(-)
> 
> could this patch being scheduled for v4.14?

https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git/commit/?h=for-next/core&id=5fe0ce3b9e514168427463d0c7a86dfa635da3d2

It is already :) (I CC'ed you on the PR)

Thanks,
Lorenzo

> 
> Thanks,
> 
> -Robert
> 
> > 
> > diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
> > index a3215ee..c5c82c3 100644
> > --- a/drivers/acpi/arm64/iort.c
> > +++ b/drivers/acpi/arm64/iort.c
> > @@ -908,6 +908,28 @@ static bool __init arm_smmu_v3_is_coherent(struct acpi_iort_node *node)
> >  	return smmu->flags & ACPI_IORT_SMMU_V3_COHACC_OVERRIDE;
> >  }
> >  
> > +#if defined(CONFIG_ACPI_NUMA) && (ACPI_CA_VERSION >= 0x20170629)
> > +/*
> > + * set numa proximity domain for smmuv3 device
> > + */
> > +static void  __init arm_smmu_v3_set_proximity(struct acpi_iort_node *node,
> > +		struct device *dev)
> > +{
> > +	struct acpi_iort_smmu_v3 *smmu;
> > +
> > +	smmu = (struct acpi_iort_smmu_v3 *)node->node_data;
> > +	if (smmu->flags & ACPI_IORT_SMMU_V3_PXM_VALID) {
> > +		set_dev_node(dev, acpi_map_pxm_to_node(smmu->pxm));
> > +		pr_info("SMMUV3[%llx] Mapped to Proximity domain %d\n",
> > +			smmu->base_address,
> > +			smmu->pxm);
> > +	}
> > +}
> > +#else
> > +static void  __init arm_smmu_v3_set_proximity(struct acpi_iort_node *node,
> > +		struct device *dev) { }
> > +#endif
> > +
> >  static int __init arm_smmu_count_resources(struct acpi_iort_node *node)
> >  {
> >  	struct acpi_iort_smmu *smmu;
> > @@ -977,20 +999,24 @@ struct iort_iommu_config {
> >  	int (*iommu_count_resources)(struct acpi_iort_node *node);
> >  	void (*iommu_init_resources)(struct resource *res,
> >  				     struct acpi_iort_node *node);
> > +	void (*iommu_set_proximity)(struct acpi_iort_node *node,
> > +				     struct device *dev);
> >  };
> >  
> >  static const struct iort_iommu_config iort_arm_smmu_v3_cfg __initconst = {
> >  	.name = "arm-smmu-v3",
> >  	.iommu_is_coherent = arm_smmu_v3_is_coherent,
> >  	.iommu_count_resources = arm_smmu_v3_count_resources,
> > -	.iommu_init_resources = arm_smmu_v3_init_resources
> > +	.iommu_init_resources = arm_smmu_v3_init_resources,
> > +	.iommu_set_proximity = arm_smmu_v3_set_proximity
> >  };
> >  
> >  static const struct iort_iommu_config iort_arm_smmu_cfg __initconst = {
> >  	.name = "arm-smmu",
> >  	.iommu_is_coherent = arm_smmu_is_coherent,
> >  	.iommu_count_resources = arm_smmu_count_resources,
> > -	.iommu_init_resources = arm_smmu_init_resources
> > +	.iommu_init_resources = arm_smmu_init_resources,
> > +	.iommu_set_proximity = NULL
> >  };
> >  
> >  static __init
> > @@ -1028,6 +1054,9 @@ static int __init iort_add_smmu_platform_device(struct acpi_iort_node *node)
> >  	if (!pdev)
> >  		return -ENOMEM;
> >  
> > +	if (ops->iommu_set_proximity)
> > +		ops->iommu_set_proximity(node, &pdev->dev);
> > +
> >  	count = ops->iommu_count_resources(node);
> >  
> >  	r = kcalloc(count, sizeof(*r), GFP_KERNEL);
> > -- 
> > 2.9.4
> > 
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
> > the body of a message to majordomo at vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html

[PATCH v4] acpi/iort: numa: Add numa node mapping for smmuv3 devices

[Robert Richter]

On 15.08.17 16:05:49, Lorenzo Pieralisi wrote:
> On Tue, Aug 15, 2017 at 05:02:13PM +0200, Robert Richter wrote:
> > Lorenzo, Will,
> > 
> > On 25.07.17 10:32:37, Ganapatrao Kulkarni wrote:
> > > ARM IORT specification(rev. C) has added  provision to define proximity
> > > domain in SMMUv3 IORT table. Adding required code to parse Proximity
> > > domain and set numa_node of smmv3 platform devices.
> > > 
> > > Add code to parse proximity domain in SMMUv3 IORT table to
> > > set numa node mapping for smmuv3 devices.
> > > 
> > > Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@cavium.com>
> > > ---
> > > 
> > > This patch has dependency on header file patch [1], which is
> > > already merged to linux-pm.
> > > 
> > > [1] https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/commit/?h=linux-next&id=c944230064eb65e4fa018d86779b4fd200b1d7e7
> > > 
> > > v4:
> > >   - Fix compilation issue in !CONFIG_NUMA
> > > 
> > > v3:
> > >   - Addressed Lorenzo Pieralisi comment.
> > > 
> > > v2:
> > >   - Changed as per Lorenzo Pieralisi and Hanjun Guo suggestions.
> > > 
> > > v1:
> > >   - Initial patch
> > > 
> > >  drivers/acpi/arm64/iort.c | 33 +++++++++++++++++++++++++++++++--
> > >  1 file changed, 31 insertions(+), 2 deletions(-)
> > 
> > could this patch being scheduled for v4.14?
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git/commit/?h=for-next/core&id=5fe0ce3b9e514168427463d0c7a86dfa635da3d2
> 
> It is already :) (I CC'ed you on the PR)

Ah, right. I missed that.

Thanks,

-Robert

> 
> Thanks,
> Lorenzo
> 
> > 
> > Thanks,
> > 
> > -Robert
> > 
> > > 
> > > diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
> > > index a3215ee..c5c82c3 100644
> > > --- a/drivers/acpi/arm64/iort.c
> > > +++ b/drivers/acpi/arm64/iort.c
> > > @@ -908,6 +908,28 @@ static bool __init arm_smmu_v3_is_coherent(struct acpi_iort_node *node)
> > >  	return smmu->flags & ACPI_IORT_SMMU_V3_COHACC_OVERRIDE;
> > >  }
> > >  
> > > +#if defined(CONFIG_ACPI_NUMA) && (ACPI_CA_VERSION >= 0x20170629)
> > > +/*
> > > + * set numa proximity domain for smmuv3 device
> > > + */
> > > +static void  __init arm_smmu_v3_set_proximity(struct acpi_iort_node *node,
> > > +		struct device *dev)
> > > +{
> > > +	struct acpi_iort_smmu_v3 *smmu;
> > > +
> > > +	smmu = (struct acpi_iort_smmu_v3 *)node->node_data;
> > > +	if (smmu->flags & ACPI_IORT_SMMU_V3_PXM_VALID) {
> > > +		set_dev_node(dev, acpi_map_pxm_to_node(smmu->pxm));
> > > +		pr_info("SMMUV3[%llx] Mapped to Proximity domain %d\n",
> > > +			smmu->base_address,
> > > +			smmu->pxm);
> > > +	}
> > > +}
> > > +#else
> > > +static void  __init arm_smmu_v3_set_proximity(struct acpi_iort_node *node,
> > > +		struct device *dev) { }
> > > +#endif
> > > +
> > >  static int __init arm_smmu_count_resources(struct acpi_iort_node *node)
> > >  {
> > >  	struct acpi_iort_smmu *smmu;
> > > @@ -977,20 +999,24 @@ struct iort_iommu_config {
> > >  	int (*iommu_count_resources)(struct acpi_iort_node *node);
> > >  	void (*iommu_init_resources)(struct resource *res,
> > >  				     struct acpi_iort_node *node);
> > > +	void (*iommu_set_proximity)(struct acpi_iort_node *node,
> > > +				     struct device *dev);
> > >  };
> > >  
> > >  static const struct iort_iommu_config iort_arm_smmu_v3_cfg __initconst = {
> > >  	.name = "arm-smmu-v3",
> > >  	.iommu_is_coherent = arm_smmu_v3_is_coherent,
> > >  	.iommu_count_resources = arm_smmu_v3_count_resources,
> > > -	.iommu_init_resources = arm_smmu_v3_init_resources
> > > +	.iommu_init_resources = arm_smmu_v3_init_resources,
> > > +	.iommu_set_proximity = arm_smmu_v3_set_proximity
> > >  };
> > >  
> > >  static const struct iort_iommu_config iort_arm_smmu_cfg __initconst = {
> > >  	.name = "arm-smmu",
> > >  	.iommu_is_coherent = arm_smmu_is_coherent,
> > >  	.iommu_count_resources = arm_smmu_count_resources,
> > > -	.iommu_init_resources = arm_smmu_init_resources
> > > +	.iommu_init_resources = arm_smmu_init_resources,
> > > +	.iommu_set_proximity = NULL
> > >  };
> > >  
> > >  static __init
> > > @@ -1028,6 +1054,9 @@ static int __init iort_add_smmu_platform_device(struct acpi_iort_node *node)
> > >  	if (!pdev)
> > >  		return -ENOMEM;
> > >  
> > > +	if (ops->iommu_set_proximity)
> > > +		ops->iommu_set_proximity(node, &pdev->dev);
> > > +
> > >  	count = ops->iommu_count_resources(node);
> > >  
> > >  	r = kcalloc(count, sizeof(*r), GFP_KERNEL);
> > > -- 
> > > 2.9.4
> > > 
> > > --
> > > To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
> > > the body of a message to majordomo at vger.kernel.org
> > > More majordomo info at  http://vger.kernel.org/majordomo-info.html