[Intel-gfx] [RFC 35/39] drm/i915: Added seqno values to scheduler status dump

[John.C.Harrison at Intel.com]

From: John Harrison <John.C.Harrison at Intel.com>

It is useful to be able to see what seqnos have actually popped out of the
hardware when viewing the scheduler status.

Change-Id: Ie93e51c64328be2606b8b43440f6344d5f225426
For: VIZ-1587
Signed-off-by: John Harrison <John.C.Harrison at Intel.com>
---
 drivers/gpu/drm/i915/i915_scheduler.c | 10 ++++++++++
 drivers/gpu/drm/i915/i915_scheduler.h |  1 +
 2 files changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_scheduler.c b/drivers/gpu/drm/i915/i915_scheduler.c
index 1547b64..7be1c89 100644
--- a/drivers/gpu/drm/i915/i915_scheduler.c
+++ b/drivers/gpu/drm/i915/i915_scheduler.c
@@ -152,6 +152,7 @@ const char *i915_scheduler_flag_str(uint32_t flags)
 	TEST_FLAG(i915_sf_dump_force,         "DumpForce|");
 	TEST_FLAG(i915_sf_dump_details,       "DumpDetails|");
 	TEST_FLAG(i915_sf_dump_dependencies,  "DumpDeps|");
+	TEST_FLAG(i915_sf_dump_seqno,         "DumpSeqno|");
 
 #undef TEST_FLAG
 
@@ -861,6 +862,7 @@ static int i915_scheduler_dump_all_locked(struct drm_device *dev, const char *ms
 	for_each_ring(ring, dev_priv, i) {
 		scheduler->flags[ring->id] |= i915_sf_dump_force   |
 					      i915_sf_dump_details |
+					      i915_sf_dump_seqno   |
 					      i915_sf_dump_dependencies;
 		r = i915_scheduler_dump_locked(ring, msg);
 		if (ret == 0)
@@ -942,6 +944,14 @@ static int i915_scheduler_dump_locked(struct intel_engine_cs *ring, const char *
 		return 0;
 	}
 
+	if (scheduler->flags[ring->id] & i915_sf_dump_seqno) {
+		uint32_t    seqno;
+
+		seqno    = ring->get_seqno(ring, true);
+
+		DRM_DEBUG_DRIVER("<%s> Seqno = %d\n", ring->name, seqno);
+	}
+
 	if (scheduler->flags[ring->id] & i915_sf_dump_details) {
 		int         i, deps;
 		uint32_t    count, counts[i915_sqs_MAX];
diff --git a/drivers/gpu/drm/i915/i915_scheduler.h b/drivers/gpu/drm/i915/i915_scheduler.h
index dd0510c..6e6e3a0 100644
--- a/drivers/gpu/drm/i915/i915_scheduler.h
+++ b/drivers/gpu/drm/i915/i915_scheduler.h
@@ -137,6 +137,7 @@ enum {
 	i915_sf_dump_force          = (1 << 8),
 	i915_sf_dump_details        = (1 << 9),
 	i915_sf_dump_dependencies   = (1 << 10),
+	i915_sf_dump_seqno          = (1 << 11),
 };
 const char *i915_scheduler_flag_str(uint32_t flags);
 
-- 
1.9.1