Il 17/10/25 08:44, Jason-JH Lin ha scritto:
Add GCE header define for GCE Thread Priority and GCE Event IDs
that used in the MT8196 dtsi.
Signed-off-by: Jason-JH Lin <[email protected]>
---
arch/arm64/boot/dts/mediatek/mt8196-gce.h | 612 ++++++++++++++++++++++
1 file changed, 612 insertions(+)
create mode 100644 arch/arm64/boot/dts/mediatek/mt8196-gce.h
diff --git a/arch/arm64/boot/dts/mediatek/mt8196-gce.h
b/arch/arm64/boot/dts/mediatek/mt8196-gce.h
new file mode 100644
index 000000000000..457dc73aeed3
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt8196-gce.h
@@ -0,0 +1,612 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
+/*
+ * Copyright (c) 2025 MediaTek Inc.
+ *
+ */
+
+#ifndef __DTS_GCE_MT8196_H
+#define __DTS_GCE_MT8196_H
+
+/* GCE Thread Priority
+ * The GCE core has multiple GCE threads, each of which can independently
+ * execute its own sequence of instructions.
+ * However, the GCE threads on the same core cannot run in parallel.
+ * Different GCE threads can determine thread priority based on the scenario,
+ * thereby serving different user needs.
+ *
+ * Low priority thread is executed when no high priority thread is active.
+ * Same priority thread is scheduled by round robin.
+ */
+#define CMDQ_THR_PRIO_LOWEST 0
+#define CMDQ_THR_PRIO_1 1
+#define CMDQ_THR_PRIO_2 2
+#define CMDQ_THR_PRIO_3 3
+#define CMDQ_THR_PRIO_4 4
+#define CMDQ_THR_PRIO_5 5
+#define CMDQ_THR_PRIO_6 6
+#define CMDQ_THR_PRIO_HIGHEST 7
+
+/*
+ * GCE0 Hardware Event IDs
+ * Different SoCs will have varying numbers of hardware event signals,
+ * which are sent from the corresponding hardware to the GCE.
+ * Each hardware event signal corresponds to an event ID in the GCE.
+ * The CMDQ driver can use the following event ID definitions to allow
+ * the client driver to use wait and clear APIs provided by CMDQ, enabling
+ * the GCE to execute operations in the instructions for that event ID.
+ *
+ * The event IDs of GCE0 are mainly used by display hardware.
..snip..
+/* CMDQ_EVENT_MML1_FRAME_DONE_SEL0 ~ 15: 284 ~ 299 */
+#define CMDQ_EVENT_MML1_FRAME_DONE_SEL(n)
(284 + (n))
+/* CMDQ_EVENT_MML1_REG_UPDATE_DONE_ENG_EVENT0 ~ 15: 300 ~ 315 */
+#define CMDQ_EVENT_MML1_REG_UPDATE_DONE_ENG_EVENT0
(300 + (n))
^^^^^
There's a typo here (n)
Please fix, after which
Reviewed-by: AngeloGioacchino Del Regno
<[email protected]>
