qemu/target/hexagon/hex_regs.h
Mukilan Thiyagarajan 72895676e7 target/hexagon: rename aliased register HEX_REG_P3_0
The patch renames the identifier of the 32bit register
HEX_REG_P3_0 to HEX_REG_P3_0_ALIASED.

This change is to intended to provide some warning that
HEX_REG_P3_0 is an aliased register which has multiple
representations in CPU state and therefore might require
special handling in some contexts. The hope is to prevent
accidental misuse of this register e.g the issue reported
for the signals tests failure [here][1].

[1]: https://lists.gnu.org/archive/html/qemu-devel/2021-11/msg01102.html

Signed-off-by: Mukilan Thiyagarajan <quic_mthiyaga@quicinc.com>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20221229092006.10709-3-quic_mthiyaga@quicinc.com>
2023-01-05 09:19:02 -08:00

84 lines
2.9 KiB
C

/*
* Copyright(c) 2019-2021 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_HEX_REGS_H
#define HEXAGON_HEX_REGS_H
enum {
HEX_REG_R00 = 0,
HEX_REG_R01 = 1,
HEX_REG_R02 = 2,
HEX_REG_R03 = 3,
HEX_REG_R04 = 4,
HEX_REG_R05 = 5,
HEX_REG_R06 = 6,
HEX_REG_R07 = 7,
HEX_REG_R08 = 8,
HEX_REG_R09 = 9,
HEX_REG_R10 = 10,
HEX_REG_R11 = 11,
HEX_REG_R12 = 12,
HEX_REG_R13 = 13,
HEX_REG_R14 = 14,
HEX_REG_R15 = 15,
HEX_REG_R16 = 16,
HEX_REG_R17 = 17,
HEX_REG_R18 = 18,
HEX_REG_R19 = 19,
HEX_REG_R20 = 20,
HEX_REG_R21 = 21,
HEX_REG_R22 = 22,
HEX_REG_R23 = 23,
HEX_REG_R24 = 24,
HEX_REG_R25 = 25,
HEX_REG_R26 = 26,
HEX_REG_R27 = 27,
HEX_REG_R28 = 28,
HEX_REG_R29 = 29,
HEX_REG_SP = 29,
HEX_REG_FP = 30,
HEX_REG_R30 = 30,
HEX_REG_LR = 31,
HEX_REG_R31 = 31,
HEX_REG_SA0 = 32,
HEX_REG_LC0 = 33,
HEX_REG_SA1 = 34,
HEX_REG_LC1 = 35,
HEX_REG_P3_0_ALIASED = 36,
HEX_REG_M0 = 38,
HEX_REG_M1 = 39,
HEX_REG_USR = 40,
HEX_REG_PC = 41,
HEX_REG_UGP = 42,
HEX_REG_GP = 43,
HEX_REG_CS0 = 44,
HEX_REG_CS1 = 45,
HEX_REG_UPCYCLELO = 46,
HEX_REG_UPCYCLEHI = 47,
HEX_REG_FRAMELIMIT = 48,
HEX_REG_FRAMEKEY = 49,
HEX_REG_PKTCNTLO = 50,
HEX_REG_PKTCNTHI = 51,
/* Use reserved control registers for qemu execution counts */
HEX_REG_QEMU_PKT_CNT = 52,
HEX_REG_QEMU_INSN_CNT = 53,
HEX_REG_QEMU_HVX_CNT = 54,
HEX_REG_UTIMERLO = 62,
HEX_REG_UTIMERHI = 63,
};
#endif