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iommu/vt-d: add wrapper functions for page allocations

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In order to improve observability and accountability of IOMMU layer, we
must account the number of pages that are allocated by functions that
are calling directly into buddy allocator.

This is achieved by first wrapping the allocation related functions into a
separate inline functions in new file:

drivers/iommu/iommu-pages.h

Convert all page allocation calls under iommu/intel to use these new
functions.

Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Acked-by: David Rientjes <rientjes@google.com>
Tested-by: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://lore.kernel.org/r/20240413002522.1101315-2-pasha.tatashin@soleen.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Pasha Tatashin 2024-04-13 00:25:12 +00:00 • committed by Joerg Roedel
commit 06c375053c
7 changed files with 201 additions and 63 deletions
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