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[RFC PATCH v4 11/29] Hexagon (target/hexagon) register fields
From: |
Taylor Simpson |
Subject: |
[RFC PATCH v4 11/29] Hexagon (target/hexagon) register fields |
Date: |
Mon, 28 Sep 2020 07:36:30 -0500 |
Declare bitfields within registers such as user status register (USR)
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
---
target/hexagon/reg_fields.h | 36 ++++++++++++++++++++++++++++++++++++
target/hexagon/reg_fields_def.h | 41 +++++++++++++++++++++++++++++++++++++++++
target/hexagon/reg_fields.c | 28 ++++++++++++++++++++++++++++
3 files changed, 105 insertions(+)
create mode 100644 target/hexagon/reg_fields.h
create mode 100644 target/hexagon/reg_fields_def.h
create mode 100644 target/hexagon/reg_fields.c
diff --git a/target/hexagon/reg_fields.h b/target/hexagon/reg_fields.h
new file mode 100644
index 0000000..706c3e9
--- /dev/null
+++ b/target/hexagon/reg_fields.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright(c) 2019-2020 Qualcomm Innovation Center, Inc. All Rights
Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef HEXAGON_REG_FIELDS_H
+#define HEXAGON_REG_FIELDS_H
+
+typedef struct {
+ int offset;
+ int width;
+} reg_field_t;
+
+extern const reg_field_t reg_field_info[];
+
+enum {
+#define DEF_REG_FIELD(TAG, START, WIDTH) \
+ TAG,
+#include "reg_fields_def.h"
+ NUM_REG_FIELDS
+#undef DEF_REG_FIELD
+};
+
+#endif
diff --git a/target/hexagon/reg_fields_def.h b/target/hexagon/reg_fields_def.h
new file mode 100644
index 0000000..27b2231
--- /dev/null
+++ b/target/hexagon/reg_fields_def.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright(c) 2019-2020 Qualcomm Innovation Center, Inc. All Rights
Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * For registers that have individual fields, explain them here
+ * DEF_REG_FIELD(tag,
+ * bit start offset,
+ * width
+ */
+
+/* USR fields */
+DEF_REG_FIELD(USR_OVF, 0, 1)
+DEF_REG_FIELD(USR_FPINVF, 1, 1)
+DEF_REG_FIELD(USR_FPDBZF, 2, 1)
+DEF_REG_FIELD(USR_FPOVFF, 3, 1)
+DEF_REG_FIELD(USR_FPUNFF, 4, 1)
+DEF_REG_FIELD(USR_FPINPF, 5, 1)
+
+DEF_REG_FIELD(USR_LPCFG, 8, 2)
+
+DEF_REG_FIELD(USR_FPRND, 22, 2)
+
+DEF_REG_FIELD(USR_FPINVE, 25, 1)
+DEF_REG_FIELD(USR_FPDBZE, 26, 1)
+DEF_REG_FIELD(USR_FPOVFE, 27, 1)
+DEF_REG_FIELD(USR_FPUNFE, 28, 1)
+DEF_REG_FIELD(USR_FPINPE, 29, 1)
diff --git a/target/hexagon/reg_fields.c b/target/hexagon/reg_fields.c
new file mode 100644
index 0000000..8e6a188
--- /dev/null
+++ b/target/hexagon/reg_fields.c
@@ -0,0 +1,28 @@
+/*
+ * Copyright(c) 2019-2020 Qualcomm Innovation Center, Inc. All Rights
Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "reg_fields.h"
+
+const reg_field_t reg_field_info[] = {
+#define DEF_REG_FIELD(TAG, START, WIDTH) \
+ { START, WIDTH },
+#include "reg_fields_def.h"
+ { 0, 0 }
+#undef DEF_REG_FIELD
+};
+
--
2.7.4
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