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/* Copyright (C) 2023 Free Software Foundation, Inc.
This file is part of GDB.
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 3 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 "gdbsupport/tdesc.h"
#include <cmath>
/* This function is NOT auto generated from xml. Create the AArch64 SME
feature into RESULT. SVL is the streaming vector length in bytes.
The ZA register has a total size of SVL x SVL.
When in Streaming SVE mode, the effective SVE vector length, VL, is equal
to SVL. */
static int
create_feature_aarch64_sme (struct target_desc *result, long regnum,
size_t svl)
{
struct tdesc_feature *feature;
tdesc_type *element_type;
feature = tdesc_create_feature (result, "org.gnu.gdb.aarch64.sme");
/* The SVG register. */
tdesc_create_reg (feature, "svg", regnum++, 1, nullptr, 64, "int");
/* SVCR flags type. */
tdesc_type_with_fields *type_with_fields
= tdesc_create_flags (feature, "svcr_flags", 8);
tdesc_add_flag (type_with_fields, 0, "SM");
tdesc_add_flag (type_with_fields, 1, "ZA");
/* The SVCR register. */
tdesc_create_reg (feature, "svcr", regnum++, 1, nullptr, 64, "svcr_flags");
/* Byte type. */
element_type = tdesc_named_type (feature, "uint8");
/* Vector of bytes. */
element_type = tdesc_create_vector (feature, "sme_bv", element_type,
svl);
/* Vector of vector of bytes (Matrix). */
element_type = tdesc_create_vector (feature, "sme_bvv", element_type,
svl);
/* The following is the ZA register set. */
tdesc_create_reg (feature, "za", regnum++, 1, nullptr,
std::pow (svl, 2) * 8, "sme_bvv");
return regnum;
}
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