drmtest: add progress indicator

Some test that trash the aperture necessarily need to take forever, so
add a little progress indicator to keep worried minds at peace.

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

lib/drmtest.h

@@ -60,6 +60,7 @@ void drmtest_permute_array(void *array, unsigned size,
 			   void (*exchange_func)(void *array,
 						 unsigned i,
 						 unsigned j));
+void drmtest_progress(const char *header, uint64_t i, uint64_t total);
 
 /* helpers based upon the libdrm buffer manager */
 void drmtest_init_aperture_trashers(drm_intel_bufmgr *bufmgr);