drm/i915/guc: Dump the GuC stage descriptor pool in debugfs
We are missing pieces of information that could be useful for GuC
debugging.
v2: Reuse some code (Joonas)
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
[Joonas: Removed extra newline and s/uint32_t/u32/ for checkpatch.pl]
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1494428691-20672-1-git-send-email-oscar.mateo@intel.com
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 7830337..bd9abef 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2494,6 +2494,22 @@ static void i915_guc_client_info(struct seq_file *m,
seq_printf(m, "\tTotal: %llu\n", tot);
}
+static bool check_guc_submission(struct seq_file *m)
+{
+ struct drm_i915_private *dev_priv = node_to_i915(m->private);
+ const struct intel_guc *guc = &dev_priv->guc;
+
+ if (!guc->execbuf_client) {
+ seq_printf(m, "GuC submission %s\n",
+ HAS_GUC_SCHED(dev_priv) ?
+ "disabled" :
+ "not supported");
+ return false;
+ }
+
+ return true;
+}
+
static int i915_guc_info(struct seq_file *m, void *data)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
@@ -2502,13 +2518,8 @@ static int i915_guc_info(struct seq_file *m, void *data)
enum intel_engine_id id;
u64 total;
- if (!guc->execbuf_client) {
- seq_printf(m, "GuC submission %s\n",
- HAS_GUC_SCHED(dev_priv) ?
- "disabled" :
- "not supported");
+ if (!check_guc_submission(m))
return 0;
- }
seq_printf(m, "Doorbell map:\n");
seq_printf(m, "\t%*pb\n", GUC_NUM_DOORBELLS, guc->doorbell_bitmap);
@@ -2540,6 +2551,60 @@ static int i915_guc_info(struct seq_file *m, void *data)
return 0;
}
+static int i915_guc_stage_pool(struct seq_file *m, void *data)
+{
+ struct drm_i915_private *dev_priv = node_to_i915(m->private);
+ const struct intel_guc *guc = &dev_priv->guc;
+ struct guc_stage_desc *desc = guc->stage_desc_pool_vaddr;
+ struct i915_guc_client *client = guc->execbuf_client;
+ unsigned int tmp;
+ int index;
+
+ if (!check_guc_submission(m))
+ return 0;
+
+ for (index = 0; index < GUC_MAX_STAGE_DESCRIPTORS; index++, desc++) {
+ struct intel_engine_cs *engine;
+
+ if (!(desc->attribute & GUC_STAGE_DESC_ATTR_ACTIVE))
+ continue;
+
+ seq_printf(m, "GuC stage descriptor %u:\n", index);
+ seq_printf(m, "\tIndex: %u\n", desc->stage_id);
+ seq_printf(m, "\tAttribute: 0x%x\n", desc->attribute);
+ seq_printf(m, "\tPriority: %d\n", desc->priority);
+ seq_printf(m, "\tDoorbell id: %d\n", desc->db_id);
+ seq_printf(m, "\tEngines used: 0x%x\n",
+ desc->engines_used);
+ seq_printf(m, "\tDoorbell trigger phy: 0x%llx, cpu: 0x%llx, uK: 0x%x\n",
+ desc->db_trigger_phy,
+ desc->db_trigger_cpu,
+ desc->db_trigger_uk);
+ seq_printf(m, "\tProcess descriptor: 0x%x\n",
+ desc->process_desc);
+ seq_printf(m, "\tWorkqueue adddress: 0x%x, size: 0x%x\n",
+ desc->wq_addr, desc->wq_size);
+ seq_putc(m, '\n');
+
+ for_each_engine_masked(engine, dev_priv, client->engines, tmp) {
+ u32 guc_engine_id = engine->guc_id;
+ struct guc_execlist_context *lrc =
+ &desc->lrc[guc_engine_id];
+
+ seq_printf(m, "\t%s LRC:\n", engine->name);
+ seq_printf(m, "\t\tContext desc: 0x%x\n",
+ lrc->context_desc);
+ seq_printf(m, "\t\tContext id: 0x%x\n", lrc->context_id);
+ seq_printf(m, "\t\tLRCA: 0x%x\n", lrc->ring_lrca);
+ seq_printf(m, "\t\tRing begin: 0x%x\n", lrc->ring_begin);
+ seq_printf(m, "\t\tRing end: 0x%x\n", lrc->ring_end);
+ seq_putc(m, '\n');
+ }
+ }
+
+ return 0;
+}
+
static int i915_guc_log_dump(struct seq_file *m, void *data)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
@@ -4746,6 +4811,7 @@ static const struct drm_info_list i915_debugfs_list[] = {
{"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_guc_stage_pool", i915_guc_stage_pool, 0},
{"i915_huc_load_status", i915_huc_load_status_info, 0},
{"i915_frequency_info", i915_frequency_info, 0},
{"i915_hangcheck_info", i915_hangcheck_info, 0},