swiotlb: move global variables into a new io_tlb_mem structure

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Added a new struct, io_tlb_mem, as the IO TLB memory pool descriptor and
moved relevant global variables into that struct.
This will be useful later to allow for restricted DMA pool.

Signed-off-by: Claire Chang <tientzu@chromium.org>
[hch: rebased]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

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Claire Chang 2021-03-18 17:14:22 +01:00 • committed by Konrad Rzeszutek Wilk

parent 6bcd4ea717

commit 73f620951b

3 changed files with 206 additions and 193 deletions

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43

include/linux/swiotlb.h

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