This provides a means of reading status and counts relating
to GuC actions and submissions.
v2:
Remove surplus blank line in output [Chris Wilson]
v5:
Added GuC per-engine submission & seqno statistics
v6:
Add per-ring statistics to client, refactor client-dumper.
Signed-off-by: Dave Gordon <david.s.gordon@xxxxxxxxx>
Signed-off-by: Alex Dai <yu.dai@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_debugfs.c | 76 +++++++++++++++++++++++++++++++++++++
1 file changed, 76 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index cfddc9a..7a28de5 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2412,6 +2412,81 @@ static int i915_guc_load_status_info(struct seq_file *m, void *data)
return 0;
}
+static void i915_guc_client_info(struct seq_file *m,
+ struct drm_i915_private *dev_priv,
+ struct i915_guc_client *client)
+{
+ struct intel_engine_cs *ring;
+ uint64_t tot = 0;
+ uint32_t i;
+
+ seq_printf(m, "\tPriority %d, GuC ctx index: %u, PD offset 0x%x\n",
+ client->priority, client->ctx_index, client->proc_desc_offset);
+ seq_printf(m, "\tDoorbell id %d, offset: 0x%x, cookie 0x%x\n",
+ client->doorbell_id, client->doorbell_offset, client->cookie);
+ seq_printf(m, "\tWQ size %d, offset: 0x%x, tail %d\n",
+ client->wq_size, client->wq_offset, client->wq_tail);
+
+ seq_printf(m, "\tFailed to queue: %u\n", client->q_fail);
+ seq_printf(m, "\tFailed doorbell: %u\n", client->b_fail);
+ seq_printf(m, "\tLast submission result: %d\n", client->retcode);
+
+ for_each_ring(ring, dev_priv, i) {
+ seq_printf(m, "\tSubmissions: %llu %s\n",
+ client->submissions[i],
+ ring->name);
+ tot += client->submissions[i];
+ }
+ seq_printf(m, "\tTotal: %llu\n", tot);
+}
+
+static int i915_guc_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_guc guc;
+ struct i915_guc_client client = { .client_obj = 0 };
+ struct intel_engine_cs *ring;
+ enum intel_ring_id i;
+ u64 total = 0;
+
+ if (!HAS_GUC_SCHED(dev_priv->dev))
+ return 0;
+
+ /* Take a local copy of the GuC data, so we can dump it at leisure */
+ spin_lock(&dev_priv->guc.host2guc_lock);
+ guc = dev_priv->guc;
+ if (guc.execbuf_client) {
+ spin_lock(&guc.execbuf_client->wq_lock);
+ client = *guc.execbuf_client;
+ spin_unlock(&guc.execbuf_client->wq_lock);
+ }
+ spin_unlock(&dev_priv->guc.host2guc_lock);
+
+ seq_printf(m, "GuC total action count: %llu\n", guc.action_count);
+ seq_printf(m, "GuC action failure count: %u\n", guc.action_fail);
+ seq_printf(m, "GuC last action command: 0x%x\n", guc.action_cmd);
+ seq_printf(m, "GuC last action status: 0x%x\n", guc.action_status);
+ seq_printf(m, "GuC last action error code: %d\n", guc.action_err);
+
+ seq_printf(m, "\nGuC submissions:\n");
+ for_each_ring(ring, dev_priv, i) {
+ seq_printf(m, "\t%-24s: %10llu, last seqno 0x%08x %9d\n",
+ ring->name, guc.submissions[i],
+ guc.last_seqno[i], guc.last_seqno[i]);
+ total += guc.submissions[i];
+ }
+ seq_printf(m, "\t%s: %llu\n", "Total", total);
+
+ seq_printf(m, "\nGuC execbuf client @ %p:\n", guc.execbuf_client);
+ i915_guc_client_info(m, dev_priv, &client);
+
+ /* Add more as required ... */
+
+ return 0;
+}
+
static int i915_guc_log_dump(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
@@ -5099,6 +5174,7 @@ static const struct drm_info_list i915_debugfs_list[] = {
{"i915_gem_hws_bsd", i915_hws_info, 0, (void *)VCS},
{"i915_gem_hws_vebox", i915_hws_info, 0, (void *)VECS},
{"i915_gem_batch_pool", i915_gem_batch_pool_info, 0},
+ {"i915_guc_info", i915_guc_info, 0},
{"i915_guc_load_status", i915_guc_load_status_info, 0},
{"i915_guc_log_dump", i915_guc_log_dump, 0},
{"i915_frequency_info", i915_frequency_info, 0},
--
1.9.1
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