[PATCH 2/4] drm/xe/oa: Print hwe to OA unit mapping

[Ashutosh Dixit <ashutosh.dixit@intel.com>]

Print hwe to OA unit mapping to dmesg, to help debug for current and new
platforms.

Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
---
 drivers/gpu/drm/xe/xe_oa.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_oa.c b/drivers/gpu/drm/xe/xe_oa.c
index 5c9d7ac82e7e4..a7d3fd5d21559 100644
--- a/drivers/gpu/drm/xe/xe_oa.c
+++ b/drivers/gpu/drm/xe/xe_oa.c
@@ -2601,6 +2601,31 @@ static int xe_oa_init_gt(struct xe_gt *gt)
 	return 0;
 }
 
+static void xe_oa_print_oa_units(struct xe_oa *oa)
+{
+	enum xe_hw_engine_id hwe_id;
+	struct xe_hw_engine *hwe;
+	struct xe_oa_unit *u;
+	struct xe_gt *gt;
+	int gt_id, i, n;
+	char buf[256];
+
+	for_each_gt(gt, oa->xe, gt_id) {
+		for (i = 0; i < gt->oa.num_oa_units; i++) {
+			u = &gt->oa.oa_unit[i];
+			buf[0] = '\0';
+			n = 0;
+
+			for_each_hw_engine(hwe, gt, hwe_id)
+				if (xe_oa_unit_id(hwe) == u->oa_unit_id)
+					n += scnprintf(buf + n, sizeof(buf) - n, "%s ", hwe->name);
+
+			xe_gt_dbg(gt, "oa_unit %d, type %d, Engines: %s\n",
+				  u->oa_unit_id, u->type, buf);
+		}
+	}
+}
+
 static int xe_oa_init_oa_units(struct xe_oa *oa)
 {
 	struct xe_gt *gt;
@@ -2617,6 +2642,8 @@ static int xe_oa_init_oa_units(struct xe_oa *oa)
 			return ret;
 	}
 
+	xe_oa_print_oa_units(oa);
+
 	return 0;
 }
 
-- 
2.48.1