Messages in this thread Patch in this message | | | From | aik@ozlabs ... | Subject | [PATCH 1/5] iommu: Move initialization earlier | Date | Mon, 6 May 2013 17:21:57 +1000 |
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From: Alexey Kardashevskiy <aik@ozlabs.ru>
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, which makes use of the IOMMU API impossible.
This moves IOMMU subsystem initialization one step earlier.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Cc: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org> --- 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 5514dfa..0de83eb 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -890,7 +890,7 @@ static int __init iommu_init(void) 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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