1 files changed, 148 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_debugfs.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_debugfs.c
new file mode 100644
index 000000000..7269eb0bb
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_debugfs.c
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#include <drm/drm_print.h>
+
+#include "gt/intel_gt_debugfs.h"
+#include "gt/uc/intel_guc_ads.h"
+#include "gt/uc/intel_guc_ct.h"
+#include "gt/uc/intel_guc_slpc.h"
+#include "gt/uc/intel_guc_submission.h"
+#include "intel_guc.h"
+#include "intel_guc_debugfs.h"
+#include "intel_guc_log_debugfs.h"
+
+static int guc_info_show(struct seq_file *m, void *data)
+{
+	struct intel_guc *guc = m->private;
+	struct drm_printer p = drm_seq_file_printer(m);
+
+	if (!intel_guc_is_supported(guc))
+		return -ENODEV;
+
+	intel_guc_load_status(guc, &p);
+	drm_puts(&p, "\n");
+	intel_guc_log_info(&guc->log, &p);
+
+	if (!intel_guc_submission_is_used(guc))
+		return 0;
+
+	intel_guc_ct_print_info(&guc->ct, &p);
+	intel_guc_submission_print_info(guc, &p);
+	intel_guc_ads_print_policy_info(guc, &p);
+
+	return 0;
+}
+DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(guc_info);
+
+static int guc_registered_contexts_show(struct seq_file *m, void *data)
+{
+	struct intel_guc *guc = m->private;
+	struct drm_printer p = drm_seq_file_printer(m);
+
+	if (!intel_guc_submission_is_used(guc))
+		return -ENODEV;
+
+	intel_guc_submission_print_context_info(guc, &p);
+
+	return 0;
+}
+DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(guc_registered_contexts);
+
+static int guc_slpc_info_show(struct seq_file *m, void *unused)
+{
+	struct intel_guc *guc = m->private;
+	struct intel_guc_slpc *slpc = &guc->slpc;
+	struct drm_printer p = drm_seq_file_printer(m);
+
+	if (!intel_guc_slpc_is_used(guc))
+		return -ENODEV;
+
+	return intel_guc_slpc_print_info(slpc, &p);
+}
+DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(guc_slpc_info);
+
+static bool intel_eval_slpc_support(void *data)
+{
+	struct intel_guc *guc = (struct intel_guc *)data;
+
+	return intel_guc_slpc_is_used(guc);
+}
+
+static int guc_sched_disable_delay_ms_get(void *data, u64 *val)
+{
+	struct intel_guc *guc = data;
+
+	if (!intel_guc_submission_is_used(guc))
+		return -ENODEV;
+
+	*val = (u64)guc->submission_state.sched_disable_delay_ms;
+
+	return 0;
+}
+
+static int guc_sched_disable_delay_ms_set(void *data, u64 val)
+{
+	struct intel_guc *guc = data;
+
+	if (!intel_guc_submission_is_used(guc))
+		return -ENODEV;
+
+	/* clamp to a practical limit, 1 minute is reasonable for a longest delay */
+	guc->submission_state.sched_disable_delay_ms = min_t(u64, val, 60000);
+
+	return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(guc_sched_disable_delay_ms_fops,
+			guc_sched_disable_delay_ms_get,
+			guc_sched_disable_delay_ms_set, "%lld\n");
+
+static int guc_sched_disable_gucid_threshold_get(void *data, u64 *val)
+{
+	struct intel_guc *guc = data;
+
+	if (!intel_guc_submission_is_used(guc))
+		return -ENODEV;
+
+	*val = guc->submission_state.sched_disable_gucid_threshold;
+	return 0;
+}
+
+static int guc_sched_disable_gucid_threshold_set(void *data, u64 val)
+{
+	struct intel_guc *guc = data;
+
+	if (!intel_guc_submission_is_used(guc))
+		return -ENODEV;
+
+	if (val > intel_guc_sched_disable_gucid_threshold_max(guc))
+		guc->submission_state.sched_disable_gucid_threshold =
+			intel_guc_sched_disable_gucid_threshold_max(guc);
+	else
+		guc->submission_state.sched_disable_gucid_threshold = val;
+
+	return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(guc_sched_disable_gucid_threshold_fops,
+			guc_sched_disable_gucid_threshold_get,
+			guc_sched_disable_gucid_threshold_set, "%lld\n");
+
+void intel_guc_debugfs_register(struct intel_guc *guc, struct dentry *root)
+{
+	static const struct intel_gt_debugfs_file files[] = {
+		{ "guc_info", &guc_info_fops, NULL },
+		{ "guc_registered_contexts", &guc_registered_contexts_fops, NULL },
+		{ "guc_slpc_info", &guc_slpc_info_fops, &intel_eval_slpc_support},
+		{ "guc_sched_disable_delay_ms", &guc_sched_disable_delay_ms_fops, NULL },
+		{ "guc_sched_disable_gucid_threshold", &guc_sched_disable_gucid_threshold_fops,
+		   NULL },
+	};
+
+	if (!intel_guc_is_supported(guc))
+		return;
+
+	intel_gt_debugfs_register_files(root, files, ARRAY_SIZE(files), guc);
+	intel_guc_log_debugfs_register(&guc->log, root);
+}