On 04/29/2015 12:49 PM, David Gibson wrote:
On Sat, Apr 25, 2015 at 10:14:36PM +1000, Alexey Kardashevskiy wrote:
Modern IBM POWERPC systems support multiple (currently two) TCE tables
per IOMMU group (a.k.a. PE). This adds a iommu_table_group container
for TCE tables. Right now just one table is supported.
For P5IOC2 and IODA, iommu_table_group is embedded into PE struct
(pnv_ioda_pe and pnv_phb) and does not require iommu_free_table(), only .
iommu_reset_table().
For pSeries, this replaces multiple calls of kzalloc_node() with a new
iommu_pseries_group_alloc() helper and stores the table group struct
pointer into the pci_dn struct. For release, a iommu_table_group_free()
helper is added.
This should cause no behavioural change.
Signed-off-by: Alexey Kardashevskiy <a...@ozlabs.ru>
[aw: for the vfio related changes]
Acked-by: Alex Williamson <alex.william...@redhat.com>
I'm not particularly fond of the "table_group" name, but I can't
really think of a better name for now. So,
I asked Ben again. iommu_state is not much better either. I'd stick to
iommu_table_group.
Reviewed-by: David Gibson <da...@gibson.dropbear.id.au>
--
Alexey
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