diff mbox

[V7,10/11] iommu/arm-smmu: Clean up early-probing workarounds

Message ID 1485188293-20263-11-git-send-email-sricharan@codeaurora.org
State Not Applicable
Headers show

Commit Message

Sricharan Ramabadhran Jan. 23, 2017, 4:18 p.m. UTC 
From: Robin Murphy <robin.murphy@arm.com>

Now that the appropriate ordering is enforced via profe-deferral of
masters in core code, rip it all out and bask in the simplicity.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
[Sricharan: Rebased on top of ACPI IORT SMMU series]
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
---
 drivers/iommu/arm-smmu-v3.c | 46 ++---------------------------------
 drivers/iommu/arm-smmu.c    | 58 +++++++--------------------------------------
 2 files changed, 10 insertions(+), 94 deletions(-)

Comments

Tomasz Nowicki Jan. 25, 2017, 5:28 p.m. UTC | #1 
On 23.01.2017 17:18, Sricharan R wrote:
> From: Robin Murphy <robin.murphy@arm.com>
>
> Now that the appropriate ordering is enforced via profe-deferral of
> masters in core code, rip it all out and bask in the simplicity.
>
> Acked-by: Will Deacon <will.deacon@arm.com>
> Signed-off-by: Robin Murphy <robin.murphy@arm.com>
> [Sricharan: Rebased on top of ACPI IORT SMMU series]
> Signed-off-by: Sricharan R <sricharan@codeaurora.org>

[...]

> -
> -#ifdef CONFIG_ACPI
> -static int __init acpi_smmu_v3_init(struct acpi_table_header *table)
> -{
> -	if (iort_node_match(ACPI_IORT_NODE_SMMU_V3))
> -		return arm_smmu_init();

Since we clean the code we can remove iort_node_match() from iort.c. 
There is no user for it any more. Unless Lorenzo has some plans for it.

Thanks,
Tomasz
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Bjorn Helgaas Jan. 28, 2017, 9:07 p.m. UTC | #2 
On Mon, Jan 23, 2017 at 09:48:12PM +0530, Sricharan R wrote:
> From: Robin Murphy <robin.murphy@arm.com>
> 
> Now that the appropriate ordering is enforced via profe-deferral of

s/profe-deferral/probe-deferral/

> masters in core code, rip it all out and bask in the simplicity.
> 
> Acked-by: Will Deacon <will.deacon@arm.com>
> Signed-off-by: Robin Murphy <robin.murphy@arm.com>
> [Sricharan: Rebased on top of ACPI IORT SMMU series]
> Signed-off-by: Sricharan R <sricharan@codeaurora.org>
> ---
>  drivers/iommu/arm-smmu-v3.c | 46 ++---------------------------------
>  drivers/iommu/arm-smmu.c    | 58 +++++++--------------------------------------
>  2 files changed, 10 insertions(+), 94 deletions(-)

Yay!
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Sricharan Ramabadhran Jan. 30, 2017, 8:05 a.m. UTC | #3 
>> Now that the appropriate ordering is enforced via profe-deferral of
>
>s/profe-deferral/probe-deferral/
>

ha, will change it.

Regards,
 Sricharan


>> masters in core code, rip it all out and bask in the simplicity.
>>
>> Acked-by: Will Deacon <will.deacon@arm.com>
>> Signed-off-by: Robin Murphy <robin.murphy@arm.com>
>> [Sricharan: Rebased on top of ACPI IORT SMMU series]
>> Signed-off-by: Sricharan R <sricharan@codeaurora.org>
>> ---
>>  drivers/iommu/arm-smmu-v3.c | 46 ++---------------------------------
>>  drivers/iommu/arm-smmu.c    | 58 +++++++--------------------------------------
>>  2 files changed, 10 insertions(+), 94 deletions(-)
>
>Yay!

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diff mbox

Patch

diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index 4d6ec44..632b541 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -2729,51 +2729,9 @@  static int arm_smmu_device_remove(struct platform_device *pdev)
 	.probe	= arm_smmu_device_probe,
 	.remove	= arm_smmu_device_remove,
 };
+module_platform_driver(arm_smmu_driver);
 
-static int __init arm_smmu_init(void)
-{
-	static bool registered;
-	int ret = 0;
-
-	if (!registered) {
-		ret = platform_driver_register(&arm_smmu_driver);
-		registered = !ret;
-	}
-	return ret;
-}
-
-static void __exit arm_smmu_exit(void)
-{
-	return platform_driver_unregister(&arm_smmu_driver);
-}
-
-subsys_initcall(arm_smmu_init);
-module_exit(arm_smmu_exit);
-
-static int __init arm_smmu_of_init(struct device_node *np)
-{
-	int ret = arm_smmu_init();
-
-	if (ret)
-		return ret;
-
-	if (!of_platform_device_create(np, NULL, platform_bus_type.dev_root))
-		return -ENODEV;
-
-	return 0;
-}
-IOMMU_OF_DECLARE(arm_smmuv3, "arm,smmu-v3", arm_smmu_of_init);
-
-#ifdef CONFIG_ACPI
-static int __init acpi_smmu_v3_init(struct acpi_table_header *table)
-{
-	if (iort_node_match(ACPI_IORT_NODE_SMMU_V3))
-		return arm_smmu_init();
-
-	return 0;
-}
-IORT_ACPI_DECLARE(arm_smmu_v3, ACPI_SIG_IORT, acpi_smmu_v3_init);
-#endif
+IOMMU_OF_DECLARE(arm_smmuv3, "arm,smmu-v3", NULL);
 
 MODULE_DESCRIPTION("IOMMU API for ARM architected SMMUv3 implementations");
 MODULE_AUTHOR("Will Deacon <will.deacon@arm.com>");
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index a60cded..93f77bb 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -2134,56 +2134,14 @@  static int arm_smmu_device_remove(struct platform_device *pdev)
 	.probe	= arm_smmu_device_probe,
 	.remove	= arm_smmu_device_remove,
 };
-
-static int __init arm_smmu_init(void)
-{
-	static bool registered;
-	int ret = 0;
-
-	if (!registered) {
-		ret = platform_driver_register(&arm_smmu_driver);
-		registered = !ret;
-	}
-	return ret;
-}
-
-static void __exit arm_smmu_exit(void)
-{
-	return platform_driver_unregister(&arm_smmu_driver);
-}
-
-subsys_initcall(arm_smmu_init);
-module_exit(arm_smmu_exit);
-
-static int __init arm_smmu_of_init(struct device_node *np)
-{
-	int ret = arm_smmu_init();
-
-	if (ret)
-		return ret;
-
-	if (!of_platform_device_create(np, NULL, platform_bus_type.dev_root))
-		return -ENODEV;
-
-	return 0;
-}
-IOMMU_OF_DECLARE(arm_smmuv1, "arm,smmu-v1", arm_smmu_of_init);
-IOMMU_OF_DECLARE(arm_smmuv2, "arm,smmu-v2", arm_smmu_of_init);
-IOMMU_OF_DECLARE(arm_mmu400, "arm,mmu-400", arm_smmu_of_init);
-IOMMU_OF_DECLARE(arm_mmu401, "arm,mmu-401", arm_smmu_of_init);
-IOMMU_OF_DECLARE(arm_mmu500, "arm,mmu-500", arm_smmu_of_init);
-IOMMU_OF_DECLARE(cavium_smmuv2, "cavium,smmu-v2", arm_smmu_of_init);
-
-#ifdef CONFIG_ACPI
-static int __init arm_smmu_acpi_init(struct acpi_table_header *table)
-{
-	if (iort_node_match(ACPI_IORT_NODE_SMMU))
-		return arm_smmu_init();
-
-	return 0;
-}
-IORT_ACPI_DECLARE(arm_smmu, ACPI_SIG_IORT, arm_smmu_acpi_init);
-#endif
+module_platform_driver(arm_smmu_driver);
+
+IOMMU_OF_DECLARE(arm_smmuv1, "arm,smmu-v1", NULL);
+IOMMU_OF_DECLARE(arm_smmuv2, "arm,smmu-v2", NULL);
+IOMMU_OF_DECLARE(arm_mmu400, "arm,mmu-400", NULL);
+IOMMU_OF_DECLARE(arm_mmu401, "arm,mmu-401", NULL);
+IOMMU_OF_DECLARE(arm_mmu500, "arm,mmu-500", NULL);
+IOMMU_OF_DECLARE(cavium_smmuv2, "cavium,smmu-v2", NULL);
 
 MODULE_DESCRIPTION("IOMMU API for ARM architected SMMU implementations");
 MODULE_AUTHOR("Will Deacon <will.deacon@arm.com>");