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authorPeter Maydell <peter.maydell@linaro.org>2021-06-14 16:09:20 +0100
committerPeter Maydell <peter.maydell@linaro.org>2021-06-16 14:33:52 +0100
commit6390eed45cab462320ceb4cbfc2cbd1c1552ed00 (patch)
treeb47b4b8b373cb717425d392ac63627f7ce5dcf63
parenta454ea1e6d40bbd4632e4e66de90e802ae47a68e (diff)
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target/arm: Add framework for MVE decode
Add the framework for decoding MVE insns, with the necessary new files and the meson.build rules, but no actual content yet. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210614151007.4545-11-peter.maydell@linaro.org
-rw-r--r--target/arm/meson.build2
-rw-r--r--target/arm/mve.decode20
-rw-r--r--target/arm/translate-a32.h1
-rw-r--r--target/arm/translate-mve.c29
-rw-r--r--target/arm/translate.c1
5 files changed, 53 insertions, 0 deletions
diff --git a/target/arm/meson.build b/target/arm/meson.build
index 5bfaf43..2b50be3 100644
--- a/target/arm/meson.build
+++ b/target/arm/meson.build
@@ -6,6 +6,7 @@ gen = [
decodetree.process('vfp.decode', extra_args: '--decode=disas_vfp'),
decodetree.process('vfp-uncond.decode', extra_args: '--decode=disas_vfp_uncond'),
decodetree.process('m-nocp.decode', extra_args: '--decode=disas_m_nocp'),
+ decodetree.process('mve.decode', extra_args: '--decode=disas_mve'),
decodetree.process('a32.decode', extra_args: '--static-decode=disas_a32'),
decodetree.process('a32-uncond.decode', extra_args: '--static-decode=disas_a32_uncond'),
decodetree.process('t32.decode', extra_args: '--static-decode=disas_t32'),
@@ -27,6 +28,7 @@ arm_ss.add(files(
'tlb_helper.c',
'translate.c',
'translate-m-nocp.c',
+ 'translate-mve.c',
'translate-neon.c',
'translate-vfp.c',
'vec_helper.c',
diff --git a/target/arm/mve.decode b/target/arm/mve.decode
new file mode 100644
index 0000000..c8492bb
--- /dev/null
+++ b/target/arm/mve.decode
@@ -0,0 +1,20 @@
+# M-profile MVE instruction descriptions
+#
+# Copyright (c) 2021 Linaro, Ltd
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library 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
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, see <http://www.gnu.org/licenses/>.
+
+#
+# This file is processed by scripts/decodetree.py
+#
diff --git a/target/arm/translate-a32.h b/target/arm/translate-a32.h
index c946ac4..0a00539 100644
--- a/target/arm/translate-a32.h
+++ b/target/arm/translate-a32.h
@@ -22,6 +22,7 @@
/* Prototypes for autogenerated disassembler functions */
bool disas_m_nocp(DisasContext *dc, uint32_t insn);
+bool disas_mve(DisasContext *dc, uint32_t insn);
bool disas_vfp(DisasContext *s, uint32_t insn);
bool disas_vfp_uncond(DisasContext *s, uint32_t insn);
bool disas_neon_dp(DisasContext *s, uint32_t insn);
diff --git a/target/arm/translate-mve.c b/target/arm/translate-mve.c
new file mode 100644
index 0000000..e91f526
--- /dev/null
+++ b/target/arm/translate-mve.c
@@ -0,0 +1,29 @@
+/*
+ * ARM translation: M-profile MVE instructions
+ *
+ * Copyright (c) 2021 Linaro, Ltd.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "tcg/tcg-op.h"
+#include "tcg/tcg-op-gvec.h"
+#include "exec/exec-all.h"
+#include "exec/gen-icount.h"
+#include "translate.h"
+#include "translate-a32.h"
+
+/* Include the generated decoder */
+#include "decode-mve.c.inc"
diff --git a/target/arm/translate.c b/target/arm/translate.c
index a51e882..9e2cca7 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -8919,6 +8919,7 @@ static void disas_thumb2_insn(DisasContext *s, uint32_t insn)
if (disas_t32(s, insn) ||
disas_vfp_uncond(s, insn) ||
disas_neon_shared(s, insn) ||
+ disas_mve(s, insn) ||
((insn >> 28) == 0xe && disas_vfp(s, insn))) {
return;
}