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authorWill Deacon2019-12-19 12:03:44 +0000
committerJoerg Roedel2019-12-23 14:06:05 +0100
commit6e8fa7404c13ca0497f3ad40e0f37bf08bf6795c (patch)
treeaa658125289b7ece4918c1f23849520ed0e61486
parent4312cf7f16c8d43e154bf2a6eea6d1e9347c922c (diff)
Revert "iommu/arm-smmu: Make arm-smmu-v3 explicitly non-modular"
This reverts commit c07b6426df922d21a13a959cf785d46e9c531941. Let's get the SMMUv3 driver building as a module, which means putting back some dead code that we used to carry. Signed-off-by: Will Deacon <will@kernel.org> Tested-by: John Garry <john.garry@huawei.com> # smmu v3 Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Joerg Roedel <jroedel@suse.de>
-rw-r--r--drivers/iommu/arm-smmu-v3.c25
1 files changed, 16 insertions, 9 deletions
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index effe72eb89e7..68163b1d680d 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -21,8 +21,7 @@
#include <linux/io-pgtable.h>
#include <linux/iommu.h>
#include <linux/iopoll.h>
-#include <linux/init.h>
-#include <linux/moduleparam.h>
+#include <linux/module.h>
#include <linux/msi.h>
#include <linux/of.h>
#include <linux/of_address.h>
@@ -384,10 +383,6 @@
#define MSI_IOVA_BASE 0x8000000
#define MSI_IOVA_LENGTH 0x100000
-/*
- * not really modular, but the easiest way to keep compat with existing
- * bootargs behaviour is to continue using module_param_named here.
- */
static bool disable_bypass = 1;
module_param_named(disable_bypass, disable_bypass, bool, S_IRUGO);
MODULE_PARM_DESC(disable_bypass,
@@ -3683,25 +3678,37 @@ static int arm_smmu_device_probe(struct platform_device *pdev)
return 0;
}
-static void arm_smmu_device_shutdown(struct platform_device *pdev)
+static int arm_smmu_device_remove(struct platform_device *pdev)
{
struct arm_smmu_device *smmu = platform_get_drvdata(pdev);
arm_smmu_device_disable(smmu);
+
+ return 0;
+}
+
+static void arm_smmu_device_shutdown(struct platform_device *pdev)
+{
+ arm_smmu_device_remove(pdev);
}
static const struct of_device_id arm_smmu_of_match[] = {
{ .compatible = "arm,smmu-v3", },
{ },
};
+MODULE_DEVICE_TABLE(of, arm_smmu_of_match);
static struct platform_driver arm_smmu_driver = {
.driver = {
.name = "arm-smmu-v3",
.of_match_table = of_match_ptr(arm_smmu_of_match),
- .suppress_bind_attrs = true,
},
.probe = arm_smmu_device_probe,
+ .remove = arm_smmu_device_remove,
.shutdown = arm_smmu_device_shutdown,
};
-builtin_platform_driver(arm_smmu_driver);
+module_platform_driver(arm_smmu_driver);
+
+MODULE_DESCRIPTION("IOMMU API for ARM architected SMMUv3 implementations");
+MODULE_AUTHOR("Will Deacon <will.deacon@arm.com>");
+MODULE_LICENSE("GPL v2");