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Subject[PATCH 0 of 3] Add memcpy_toio32, a 32-bit MMIO copy routine
Following some discussion with Matt, Andrew and Chris, here is a recast
of the 32-bit MMIO patch I posted the other day. The routine is now
named memcpy_toio32, and is provided in generic and x86_64-optimised

I haven't added a memcpy_fromio32, or routines for other access sizes,
because our hardware doesn't need them. If someone wants them for
reasons of symmetry, I can introduce them.

Signed-off-by: Bryan O'Sullivan <>
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