Messages in this thread Patch in this message | | | From | Alexey Kardashevskiy <> | Subject | [PATCH] iommu: moving initialization earlier | Date | Thu, 13 Dec 2012 17:28:35 +1100 |
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The iommu_init() call initializes IOMMU internal structures and data required for the API to function such as iommu_group_alloc(). It is registered as a subsys_initcall.
One of the IOMMU users is a PCI subsystem on POWER which discovers new IOMMU tables during the PCI scan so the most logical place to call iommu_group_alloc() is when a new group is just discovered. However PCI scan is done from subsys_initcall hook as well what makes using of the IOMMU API impossible.
The patch moves IOMMU subsystem initialization one step earlier.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> --- drivers/iommu/iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index de857bb..b0afd3d 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -865,7 +865,7 @@ printk("%s %u\n", __func__, __LINE__); return 0; } -subsys_initcall(iommu_init); +arch_initcall(iommu_init); int iommu_domain_get_attr(struct iommu_domain *domain, enum iommu_attr attr, void *data) -- 1.7.10.4
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