[PATCH kernel] powerpc/powernv/ioda2: Fix calculation for memory allocated for TCE table

Michael Ellerman mpe at ellerman.id.au
Tue Jul 21 16:24:01 AEST 2015

On Mon, 2015-07-20 at 20:45 +1000, Alexey Kardashevskiy wrote:
> The existing code stores the amount of memory allocated for a TCE table.
> At the moment it uses @offset which is a virtual offset in the TCE table
> which is only correct for a one level tables and it does not include
> memory allocated for intermediate levels. When multilevel TCE table is
> requested, WARN_ON in tce_iommu_create_table() prints a warning.
> This adds an additional counter to pnv_pci_ioda2_table_do_alloc_pages()
> to count actually allocated memory.
> Signed-off-by: Alexey Kardashevskiy <aik at ozlabs.ru>
> ---
> I was sure I sent it already but could not find it anywhere so reposting.
> Sorry if it is a duplicate.



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