1 files changed, 86 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_guc_ct.h b/drivers/gpu/drm/xe/xe_guc_ct.h
new file mode 100644
index 000000000000..ca1ce2b3c354
--- /dev/null
+++ b/drivers/gpu/drm/xe/xe_guc_ct.h
@@ -0,0 +1,86 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2022 Intel Corporation
+ */
+
+#ifndef _XE_GUC_CT_H_
+#define _XE_GUC_CT_H_
+
+#include "xe_guc_ct_types.h"
+
+struct drm_printer;
+struct xe_device;
+
+int xe_guc_ct_init_noalloc(struct xe_guc_ct *ct);
+int xe_guc_ct_init(struct xe_guc_ct *ct);
+int xe_guc_ct_init_post_hwconfig(struct xe_guc_ct *ct);
+int xe_guc_ct_enable(struct xe_guc_ct *ct);
+int xe_guc_ct_restart(struct xe_guc_ct *ct);
+void xe_guc_ct_disable(struct xe_guc_ct *ct);
+void xe_guc_ct_stop(struct xe_guc_ct *ct);
+void xe_guc_ct_flush_and_stop(struct xe_guc_ct *ct);
+void xe_guc_ct_fast_path(struct xe_guc_ct *ct);
+
+struct xe_guc_ct_snapshot *xe_guc_ct_snapshot_capture(struct xe_guc_ct *ct);
+void xe_guc_ct_snapshot_print(struct xe_guc_ct_snapshot *snapshot, struct drm_printer *p);
+void xe_guc_ct_snapshot_free(struct xe_guc_ct_snapshot *snapshot);
+void xe_guc_ct_print(struct xe_guc_ct *ct, struct drm_printer *p, bool want_ctb);
+
+static inline bool xe_guc_ct_initialized(struct xe_guc_ct *ct)
+{
+	return ct->state != XE_GUC_CT_STATE_NOT_INITIALIZED;
+}
+
+static inline bool xe_guc_ct_enabled(struct xe_guc_ct *ct)
+{
+	return ct->state == XE_GUC_CT_STATE_ENABLED;
+}
+
+static inline void xe_guc_ct_irq_handler(struct xe_guc_ct *ct)
+{
+	if (!xe_guc_ct_enabled(ct))
+		return;
+
+	wake_up_all(&ct->wq);
+	queue_work(ct->g2h_wq, &ct->g2h_worker);
+	xe_guc_ct_fast_path(ct);
+}
+
+/* Basic CT send / receives */
+int xe_guc_ct_send(struct xe_guc_ct *ct, const u32 *action, u32 len,
+		   u32 g2h_len, u32 num_g2h);
+int xe_guc_ct_send_locked(struct xe_guc_ct *ct, const u32 *action, u32 len,
+			  u32 g2h_len, u32 num_g2h);
+int xe_guc_ct_send_recv(struct xe_guc_ct *ct, const u32 *action, u32 len,
+			u32 *response_buffer);
+static inline int
+xe_guc_ct_send_block(struct xe_guc_ct *ct, const u32 *action, u32 len)
+{
+	return xe_guc_ct_send_recv(ct, action, len, NULL);
+}
+
+/* This is only version of the send CT you can call from a G2H handler */
+int xe_guc_ct_send_g2h_handler(struct xe_guc_ct *ct, const u32 *action,
+			       u32 len);
+
+/* Can't fail because a GT reset is in progress */
+int xe_guc_ct_send_recv_no_fail(struct xe_guc_ct *ct, const u32 *action,
+				u32 len, u32 *response_buffer);
+static inline int
+xe_guc_ct_send_block_no_fail(struct xe_guc_ct *ct, const u32 *action, u32 len)
+{
+	return xe_guc_ct_send_recv_no_fail(ct, action, len, NULL);
+}
+
+long xe_guc_ct_queue_proc_time_jiffies(struct xe_guc_ct *ct);
+
+/**
+ * xe_guc_ct_wake_waiters() - GuC CT wake up waiters
+ * @ct: GuC CT object
+ */
+static inline void xe_guc_ct_wake_waiters(struct xe_guc_ct *ct)
+{
+	wake_up_all(&ct->wq);
+}
+
+#endif