drm/xe: Introduce guc_submit_types.h with relevant structs.

These structs and definitions are only used for the guc_submit
and they were added specifically for the parallel submission.

While doing that also delete the unused struct guc_wq_item.

v2: checkpatch fixes.

Cc: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>

1 files changed, 64 insertions, 0 deletions

diff --git a/drivers/gpu/drm/xe/xe_guc_submit_types.h b/drivers/gpu/drm/xe/xe_guc_submit_types.h
new file mode 100644
index 000000000000..d23759959be9
--- /dev/null
+++ b/drivers/gpu/drm/xe/xe_guc_submit_types.h
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef _XE_GUC_SUBMIT_TYPES_H_
+#define _XE_GUC_SUBMIT_TYPES_H_
+
+#include "xe_hw_engine_types.h"
+
+/* Work item for submitting workloads into work queue of GuC. */
+#define WQ_STATUS_ACTIVE		1
+#define WQ_STATUS_SUSPENDED		2
+#define WQ_STATUS_CMD_ERROR		3
+#define WQ_STATUS_ENGINE_ID_NOT_USED	4
+#define WQ_STATUS_SUSPENDED_FROM_RESET	5
+#define WQ_TYPE_NOOP			0x4
+#define WQ_TYPE_MULTI_LRC		0x5
+#define WQ_TYPE_MASK			GENMASK(7, 0)
+#define WQ_LEN_MASK			GENMASK(26, 16)
+
+#define WQ_GUC_ID_MASK			GENMASK(15, 0)
+#define WQ_RING_TAIL_MASK		GENMASK(28, 18)
+
+#define PARALLEL_SCRATCH_SIZE	2048
+#define WQ_SIZE			(PARALLEL_SCRATCH_SIZE / 2)
+#define WQ_OFFSET		(PARALLEL_SCRATCH_SIZE - WQ_SIZE)
+#define CACHELINE_BYTES		64
+
+struct guc_sched_wq_desc {
+	u32 head;
+	u32 tail;
+	u32 error_offset;
+	u32 wq_status;
+	u32 reserved[28];
+} __packed;
+
+struct sync_semaphore {
+	u32 semaphore;
+	u8 unused[CACHELINE_BYTES - sizeof(u32)];
+};
+
+/**
+ * Struct guc_submit_parallel_scratch - A scratch shared mapped buffer.
+ */
+struct guc_submit_parallel_scratch {
+	/** @wq_desc: Guc scheduler workqueue descriptor */
+	struct guc_sched_wq_desc wq_desc;
+
+	/** @go: Go Semaphore */
+	struct sync_semaphore go;
+	/** @join: Joined semaphore for the relevant hw engine instances */
+	struct sync_semaphore join[XE_HW_ENGINE_MAX_INSTANCE];
+
+	/** @unused: Unused/Reserved memory space */
+	u8 unused[WQ_OFFSET - sizeof(struct guc_sched_wq_desc) -
+		  sizeof(struct sync_semaphore) *
+		  (XE_HW_ENGINE_MAX_INSTANCE + 1)];
+
+	/** @wq: Workqueue info */
+	u32 wq[WQ_SIZE / sizeof(u32)];
+};
+
+#endif