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e82baf0801
So far unmapping has not been implemented. This means that if one test maps a pointer to an address with map_sysmem(), then a second test can use that same pointer, by mapping the address back to a pointer with map_to_sysmem(). This is not really desirable, even if it doesn't cause any problems at the moment. Implement unmapping, to clean this up. Signed-off-by: Simon Glass <sjg@chromium.org>