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/* Common AArch64 Linux arch-specific definitions for the scalable
extensions: SVE and SME.
Copyright (C) 2023-2024 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/>. */
#ifndef ARCH_AARCH64_SCALABLE_LINUX_H
#define ARCH_AARCH64_SCALABLE_LINUX_H
#include "gdbsupport/common-defs.h"
#include "gdbsupport/common-regcache.h"
/* Feature check for Scalable Matrix Extension. */
#ifndef HWCAP2_SME
#define HWCAP2_SME (1 << 23)
#endif
/* Feature check for Scalable Matrix Extension 2. */
#ifndef HWCAP2_SME2
#define HWCAP2_SME2 (1UL << 37)
#define HWCAP2_SME2P1 (1UL << 38)
#endif
/* Streaming mode enabled/disabled bit. */
#define SVCR_SM_BIT (1 << 0)
/* ZA enabled/disabled bit. */
#define SVCR_ZA_BIT (1 << 1)
/* Mask including all valid SVCR bits. */
#define SVCR_BIT_MASK (SVCR_SM_BIT | SVCR_ZA_BIT)
/* SVE/SSVE-related constants used for an empty SVE/SSVE register set
dumped to a core file. When SME is supported, either the SVE state or
the SSVE state will be empty when it is dumped to a core file. */
#define SVE_CORE_DUMMY_SIZE 0x220
#define SVE_CORE_DUMMY_MAX_SIZE 0x2240
#define SVE_CORE_DUMMY_VL 0x10
#define SVE_CORE_DUMMY_MAX_VL 0x100
#define SVE_CORE_DUMMY_FLAGS 0x0
#define SVE_CORE_DUMMY_RESERVED 0x0
/* Return TRUE if the SVE state in the register cache REGCACHE
is empty (zero). Return FALSE otherwise. */
extern bool sve_state_is_empty (const struct reg_buffer_common *reg_buf);
#endif /* ARCH_AARCH64_SCALABLE_LINUX_H */
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