Messages in this thread | | | Date | Tue, 5 Sep 2023 10:28:45 +0530 | Subject | Re: [PATCH v3 4/6] mm: Add structure to keep sva information | From | Vasant Hegde <> |
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On 9/5/2023 5:39 AM, Tina Zhang wrote: > Introduce iommu_mm_data structure to keep sva information (pasid and the > related sva domains). Add iommu_mm pointer, pointing to an instance of > iommu_mm_data structure, to mm. > > Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Looks good to me.
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
-Vasant
> --- > include/linux/iommu.h | 5 +++++ > include/linux/mm_types.h | 2 ++ > 2 files changed, 7 insertions(+) > > diff --git a/include/linux/iommu.h b/include/linux/iommu.h > index ab8784dfdbd9..937f3abc26f2 100644 > --- a/include/linux/iommu.h > +++ b/include/linux/iommu.h > @@ -670,6 +670,11 @@ struct iommu_sva { > struct iommu_domain *domain; > }; > > +struct iommu_mm_data { > + u32 pasid; > + struct list_head sva_domains; > +}; > + > int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwnode, > const struct iommu_ops *ops); > void iommu_fwspec_free(struct device *dev); > diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h > index 7d30dc4ff0ff..b486f521afee 100644 > --- a/include/linux/mm_types.h > +++ b/include/linux/mm_types.h > @@ -595,6 +595,7 @@ struct mm_cid { > #endif > > struct kioctx_table; > +struct iommu_mm_data; > struct mm_struct { > struct { > /* > @@ -808,6 +809,7 @@ struct mm_struct { > > #ifdef CONFIG_IOMMU_SVA > u32 pasid; > + struct iommu_mm_data *iommu_mm; > #endif > #ifdef CONFIG_KSM > /*
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