[igt-dev] [PATCH i-g-t 5/8] lib/igt_drm_fdinfo: Track largest engine index

[Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>]

From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

Prep code for incoming work.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
---
 lib/igt_drm_fdinfo.c | 2 ++
 lib/igt_drm_fdinfo.h | 1 +
 2 files changed, 3 insertions(+)

diff --git a/lib/igt_drm_fdinfo.c b/lib/igt_drm_fdinfo.c
index 3f4f0e88b0d8..b5f8a8679a71 100644
--- a/lib/igt_drm_fdinfo.c
+++ b/lib/igt_drm_fdinfo.c
@@ -162,6 +162,8 @@ __igt_parse_drm_fdinfo(int dir, const char *fd, struct drm_client_fdinfo *info,
 					info->capacity[idx] = 1;
 				info->busy[idx] = val;
 				info->num_engines++;
+				if (idx > info->last_engine_index)
+					info->last_engine_index = idx;
 			}
 		} else if (!strncmp(l, "drm-engine-capacity-", 20)) {
 			idx = parse_engine(l, info,
diff --git a/lib/igt_drm_fdinfo.h b/lib/igt_drm_fdinfo.h
index fa4982f4030e..6284e05e868a 100644
--- a/lib/igt_drm_fdinfo.h
+++ b/lib/igt_drm_fdinfo.h
@@ -38,6 +38,7 @@ struct drm_client_fdinfo {
 	unsigned long id;
 
 	unsigned int num_engines;
+	unsigned int last_engine_index;
 	unsigned int capacity[DRM_CLIENT_FDINFO_MAX_ENGINES];
 	char names[DRM_CLIENT_FDINFO_MAX_ENGINES][256];
 	uint64_t busy[DRM_CLIENT_FDINFO_MAX_ENGINES];
-- 
2.37.2