Marek Vasut | a0a839b | 2017-01-18 23:01:42 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Nios2 specific CPU ABI and functions for linux-user |
| 3 | * |
| 4 | * Copyright (c) 2016 Marek Vasut <marex@denx.de> |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
Chetan Pant | 1c79145 | 2020-10-23 12:24:55 +0000 | [diff] [blame] | 9 | * version 2.1 of the License, or (at your option) any later version. |
Marek Vasut | a0a839b | 2017-01-18 23:01:42 +0100 | [diff] [blame] | 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
| 17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| 18 | */ |
| 19 | |
Markus Armbruster | 43e0c35 | 2019-03-15 15:51:18 +0100 | [diff] [blame] | 20 | #ifndef NIOS2_TARGET_CPU_H |
| 21 | #define NIOS2_TARGET_CPU_H |
Marek Vasut | a0a839b | 2017-01-18 23:01:42 +0100 | [diff] [blame] | 22 | |
Richard Henderson | 608999d | 2019-11-06 12:33:15 +0100 | [diff] [blame] | 23 | static inline void cpu_clone_regs_child(CPUNios2State *env, target_ulong newsp, |
| 24 | unsigned flags) |
Marek Vasut | a0a839b | 2017-01-18 23:01:42 +0100 | [diff] [blame] | 25 | { |
| 26 | if (newsp) { |
| 27 | env->regs[R_SP] = newsp; |
| 28 | } |
| 29 | env->regs[R_RET0] = 0; |
Richard Henderson | 42192df | 2022-04-21 08:16:33 -0700 | [diff] [blame] | 30 | env->regs[7] = 0; |
Marek Vasut | a0a839b | 2017-01-18 23:01:42 +0100 | [diff] [blame] | 31 | } |
| 32 | |
Richard Henderson | 07a6ecf | 2019-11-06 12:33:16 +0100 | [diff] [blame] | 33 | static inline void cpu_clone_regs_parent(CPUNios2State *env, unsigned flags) |
| 34 | { |
| 35 | } |
| 36 | |
Marek Vasut | a0a839b | 2017-01-18 23:01:42 +0100 | [diff] [blame] | 37 | static inline void cpu_set_tls(CPUNios2State *env, target_ulong newtls) |
| 38 | { |
| 39 | /* |
| 40 | * Linux kernel 3.10 does not pay any attention to CLONE_SETTLS |
| 41 | * in copy_thread(), so QEMU need not do so either. |
| 42 | */ |
| 43 | } |
| 44 | |
Laurent Vivier | 9850f9f | 2018-05-29 21:42:00 +0200 | [diff] [blame] | 45 | static inline abi_ulong get_sp_from_cpustate(CPUNios2State *state) |
| 46 | { |
| 47 | return state->regs[R_SP]; |
| 48 | } |
Marek Vasut | a0a839b | 2017-01-18 23:01:42 +0100 | [diff] [blame] | 49 | #endif |