[PATCH i-g-t 4/5] tests/intel/xe_render_copy: Expose render duration

[Francois Dugast <francois.dugast@intel.com>]

If the argument duration_ns is provided (not NULL), render() writes
into it the duration of the rendering execution, which is only a part
of the overall function. It can be used to observe the relative change
of rendering duration under various hardware stressing conditions.

Signed-off-by: Francois Dugast <francois.dugast@intel.com>
---
 tests/intel/xe_render_copy.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/tests/intel/xe_render_copy.c b/tests/intel/xe_render_copy.c
index ffe5f7ef1..2125e0667 100644
--- a/tests/intel/xe_render_copy.c
+++ b/tests/intel/xe_render_copy.c
@@ -260,7 +260,8 @@ static const char * const testname[] = {
 
 static int render(struct buf_ops *bops, uint32_t tiling,
 		  uint32_t width, uint32_t height,
-		  enum render_copy_testtype testtype)
+		  enum render_copy_testtype testtype,
+		  uint64_t *duration_ns)
 {
 	struct intel_bb *ibb;
 	struct intel_buf src, dst, final, grfs;
@@ -271,6 +272,7 @@ static int render(struct buf_ops *bops, uint32_t tiling,
 	int compression = testtype == COPY_FULL_COMPRESSED ? I915_COMPRESSION_RENDER :
 							     I915_COMPRESSION_NONE;
 	bool is_compressed;
+	struct timespec tv;
 	struct posrc {
 		uint32_t x0, y0;
 		uint32_t x1, y1;
@@ -329,6 +331,8 @@ static int render(struct buf_ops *bops, uint32_t tiling,
 	render_copy = igt_get_render_copyfunc(devid);
 	igt_assert(render_copy);
 
+	if (duration_ns)
+		igt_gettime(&tv);
 	switch (testtype) {
 	case COPY_SQUARE:
 	case COPY_VSTRIPES:
@@ -404,6 +408,8 @@ static int render(struct buf_ops *bops, uint32_t tiling,
 	}
 
 	intel_bb_sync(ibb);
+	if (duration_ns)
+		*duration_ns = igt_nsec_elapsed(&tv);
 	intel_bb_destroy(ibb);
 
 	if (write_png) {
@@ -491,7 +497,7 @@ igt_main_args("dpiW:H:", NULL, help_str, opt_handler, NULL)
 				tiling_name = blt_tiling_name(tiling);
 				tiling = blt_tile_to_i915_tile(tiling);
 				igt_dynamic_f("render-%s-%ux%u", tiling_name, surfwidth, surfheight)
-					render(bops, tiling, surfwidth, surfheight, id);
+					render(bops, tiling, surfwidth, surfheight, id, NULL);
 			}
 		}
 	}
-- 
2.43.0