igt/gem_streaming_writes: Reorder src/dst to avoid executing on snooped
igt/gem_streaming_writes: Reorder src/dst to avoid executing on snooped

During the streaming setup, we execute a dummy batch in order to bind
the objects into the GTT and query their offsets. For this, we should
not use a snooped buffer for the dummy batch, or else we may anger the
GPU. Given that we have a choice, use the other buffer for the dummy
batch.

Signed-off-by: Chris Wilson <711c73f64afdce07b7e38039a96d2224209e9a6c@chris-wilson.co.uk>

mv0/intel-gpu-tools,mv0/intel-gpu-tools,dlespiau/checkmate-test-igt,dlespiau/checkmate-test-igt,tiagovignatti/intel-gpu-tools,mv0/intel-gpu-tools,mv0/intel-gpu-tools,tiagovignatti/intel-gpu-tools,dlespiau/checkmate-test-igt,chenxianqin/intel-gpu-tools,chenxianqin/intel-gpu-tools,tiagovignatti/intel-gpu-tools,chenxianqin/intel-gpu-tools,chenxianqin/intel-gpu-tools,dlespiau/checkmate-test-igt,tiagovignatti/intel-gpu-tools