[PATCH i-g-t v3 02/10] tests/intel/xe_drm_fdinfo: Print timestamp for debug

[Lucas De Marchi <lucas.demarchi@intel.com>]

xe_spin is capable of writing the timestamp from the GPU side. This is a
good way to compare what we are reading from the fdinfo with what the
GPU is seeing. Example output:

(xe_drm_fdinfo:10404) DEBUG: rcs: spinner ended (timestamp=9817720)
(xe_drm_fdinfo:10404) DEBUG: bcs: spinner ended (timestamp=9755785)
(xe_drm_fdinfo:10404) DEBUG: vecs: spinner ended (timestamp=9653024)
(xe_drm_fdinfo:10404) DEBUG: ccs: spinner ended (timestamp=9722776)
(xe_drm_fdinfo:10404) DEBUG: rcs: sample 1: cycles 19513436, total_cycles 130596422980
(xe_drm_fdinfo:10404) DEBUG: rcs: sample 2: cycles 29331470, total_cycles 130606141449

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
---
 tests/intel/xe_drm_fdinfo.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tests/intel/xe_drm_fdinfo.c b/tests/intel/xe_drm_fdinfo.c
index e3a99a2dc..074a89711 100644
--- a/tests/intel/xe_drm_fdinfo.c
+++ b/tests/intel/xe_drm_fdinfo.c
@@ -416,6 +416,7 @@ spin_sync_start(int fd, struct spin_ctx *ctx)
 		return;
 
 	ctx->spin_opts.addr = ctx->addr;
+	ctx->spin_opts.write_timestamp = true;
 	ctx->spin_opts.preempt = true;
 	xe_spin_init(ctx->spin, &ctx->spin_opts);
 
@@ -448,7 +449,8 @@ spin_sync_end(int fd, struct spin_ctx *ctx)
 	igt_assert(syncobj_wait(fd, &ctx->sync[0].handle, 1, INT64_MAX, 0, NULL));
 
 	ctx->ended = true;
-	igt_debug("%s: spinner ended\n", engine_map[ctx->class]);
+	igt_debug("%s: spinner ended (timestamp=%u)\n", engine_map[ctx->class],
+		  ctx->spin->timestamp);
 }
 
 static void
-- 
2.43.0