Messages in this thread | | | Subject | Re: [PATCH] iommu: moving initialization earlier | From | Alex Williamson <> | Date | Thu, 13 Dec 2012 08:48:55 -0700 |
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Probably a good idea to CC the iommu list and maintainer...
On Thu, 2012-12-13 at 17:28 +1100, Alexey Kardashevskiy wrote: > 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)
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