Fixing psyqo's DMA GPU behavior. #1677
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The "transfer direction" needs to always be 1 in the general case, to ensure DREQ to properly toggle on FIFO status, and set to 2 for VRAM uploads, and VRAM uploads only.
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The "transfer direction" needs to always be 1 in the general case, to ensure DREQ to properly toggle on FIFO status, and set to 2 for VRAM uploads, and VRAM uploads only.