Re: [PATCH kernel v11 30/34] powerpc/iommu/ioda2: Add get_table_size() to calculate the size of future table
From: David Gibson <hidden>
Date: 2015-06-02 01:40:36
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On Fri, May 29, 2015 at 06:44:54PM +1000, Alexey Kardashevskiy wrote:
This adds a way for the IOMMU user to know how much a new table will use so it can be accounted in the locked_vm limit before allocation happens. This stores the allocated table size in pnv_pci_ioda2_get_table_size() so the locked_vm counter can be updated correctly when a table is being disposed. This defines an iommu_table_group_ops callback to let VFIO know how much memory will be locked if a table is created. Signed-off-by: Alexey Kardashevskiy <redacted>
Reviewed-by: David Gibson <redacted> -- David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson
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