On 10/10/23 02:28, Philippe Mathieu-Daudé wrote:
"target/foo/cpu.h" contains the target specific declarations.

A heterogeneous setup need to access target agnostic declarations
(at least the QOM ones, to instantiate the objects).

Our convention is to add such target agnostic QOM declarations in
the "target/foo/cpu-qom.h" header.

Extract QOM definitions from "cpu.h" to "cpu-qom.h".

Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
---
  target/hexagon/cpu-qom.h | 35 +++++++++++++++++++++++++++++++++++
  target/hexagon/cpu.h     | 23 +----------------------
  2 files changed, 36 insertions(+), 22 deletions(-)
  create mode 100644 target/hexagon/cpu-qom.h

diff --git a/target/hexagon/cpu-qom.h b/target/hexagon/cpu-qom.h
new file mode 100644
index 0000000000..cd45850c64
--- /dev/null
+++ b/target/hexagon/cpu-qom.h
@@ -0,0 +1,35 @@
+/*
+ * QEMU Hexagon CPU QOM header (target agnostic)
+ *
+ * Copyright(c) 2019-2023 Qualcomm Innovation Center, Inc. All Rights Reserved.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef QEMU_HEXAGON_CPU_QOM_H
+#define QEMU_HEXAGON_CPU_QOM_H
+
+#include "hw/core/cpu.h"
+#include "qom/object.h"
+
+#define TYPE_HEXAGON_CPU "hexagon-cpu"
+
+#define HEXAGON_CPU_TYPE_SUFFIX "-" TYPE_HEXAGON_CPU
+#define HEXAGON_CPU_TYPE_NAME(name) (name HEXAGON_CPU_TYPE_SUFFIX)
+
+#define TYPE_HEXAGON_CPU_V67 HEXAGON_CPU_TYPE_NAME("v67")
+#define TYPE_HEXAGON_CPU_V68 HEXAGON_CPU_TYPE_NAME("v68")
+#define TYPE_HEXAGON_CPU_V69 HEXAGON_CPU_TYPE_NAME("v69")
+#define TYPE_HEXAGON_CPU_V71 HEXAGON_CPU_TYPE_NAME("v71")
+#define TYPE_HEXAGON_CPU_V73 HEXAGON_CPU_TYPE_NAME("v73")
+
+OBJECT_DECLARE_CPU_TYPE(HexagonCPU, HexagonCPUClass, HEXAGON_CPU)
+
+typedef struct HexagonCPUClass {
+    CPUClass parent_class;
+
+    DeviceRealize parent_realize;
+    ResettablePhases parent_phases;
+} HexagonCPUClass;

I can't imagine the class structure being any more useful generically than the object structure. All we need at this point is the typedef, provided by OBJECT_DECLARE_TYPE.

I know this makes hexagon match others, but I think its the wrong direction of 
cleanup.


r~

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