| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Copyright (C) 2012 Regents of the University of California |
| * Copyright (C) 2017 SiFive |
| * |
| * 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, version 2. |
| * |
| * 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. |
| */ |
| |
| #include <linux/linkage.h> |
| |
| #include <asm/asm.h> |
| #include <asm/csr.h> |
| #include <asm/asm-offsets.h> |
| |
| ENTRY(__fstate_save) |
| li a2, TASK_THREAD_F0 |
| add a0, a0, a2 |
| li t1, SR_FS |
| csrs sstatus, t1 |
| frcsr t0 |
| fsd f0, TASK_THREAD_F0_F0(a0) |
| fsd f1, TASK_THREAD_F1_F0(a0) |
| fsd f2, TASK_THREAD_F2_F0(a0) |
| fsd f3, TASK_THREAD_F3_F0(a0) |
| fsd f4, TASK_THREAD_F4_F0(a0) |
| fsd f5, TASK_THREAD_F5_F0(a0) |
| fsd f6, TASK_THREAD_F6_F0(a0) |
| fsd f7, TASK_THREAD_F7_F0(a0) |
| fsd f8, TASK_THREAD_F8_F0(a0) |
| fsd f9, TASK_THREAD_F9_F0(a0) |
| fsd f10, TASK_THREAD_F10_F0(a0) |
| fsd f11, TASK_THREAD_F11_F0(a0) |
| fsd f12, TASK_THREAD_F12_F0(a0) |
| fsd f13, TASK_THREAD_F13_F0(a0) |
| fsd f14, TASK_THREAD_F14_F0(a0) |
| fsd f15, TASK_THREAD_F15_F0(a0) |
| fsd f16, TASK_THREAD_F16_F0(a0) |
| fsd f17, TASK_THREAD_F17_F0(a0) |
| fsd f18, TASK_THREAD_F18_F0(a0) |
| fsd f19, TASK_THREAD_F19_F0(a0) |
| fsd f20, TASK_THREAD_F20_F0(a0) |
| fsd f21, TASK_THREAD_F21_F0(a0) |
| fsd f22, TASK_THREAD_F22_F0(a0) |
| fsd f23, TASK_THREAD_F23_F0(a0) |
| fsd f24, TASK_THREAD_F24_F0(a0) |
| fsd f25, TASK_THREAD_F25_F0(a0) |
| fsd f26, TASK_THREAD_F26_F0(a0) |
| fsd f27, TASK_THREAD_F27_F0(a0) |
| fsd f28, TASK_THREAD_F28_F0(a0) |
| fsd f29, TASK_THREAD_F29_F0(a0) |
| fsd f30, TASK_THREAD_F30_F0(a0) |
| fsd f31, TASK_THREAD_F31_F0(a0) |
| sw t0, TASK_THREAD_FCSR_F0(a0) |
| csrc sstatus, t1 |
| ret |
| ENDPROC(__fstate_save) |
| |
| ENTRY(__fstate_restore) |
| li a2, TASK_THREAD_F0 |
| add a0, a0, a2 |
| li t1, SR_FS |
| lw t0, TASK_THREAD_FCSR_F0(a0) |
| csrs sstatus, t1 |
| fld f0, TASK_THREAD_F0_F0(a0) |
| fld f1, TASK_THREAD_F1_F0(a0) |
| fld f2, TASK_THREAD_F2_F0(a0) |
| fld f3, TASK_THREAD_F3_F0(a0) |
| fld f4, TASK_THREAD_F4_F0(a0) |
| fld f5, TASK_THREAD_F5_F0(a0) |
| fld f6, TASK_THREAD_F6_F0(a0) |
| fld f7, TASK_THREAD_F7_F0(a0) |
| fld f8, TASK_THREAD_F8_F0(a0) |
| fld f9, TASK_THREAD_F9_F0(a0) |
| fld f10, TASK_THREAD_F10_F0(a0) |
| fld f11, TASK_THREAD_F11_F0(a0) |
| fld f12, TASK_THREAD_F12_F0(a0) |
| fld f13, TASK_THREAD_F13_F0(a0) |
| fld f14, TASK_THREAD_F14_F0(a0) |
| fld f15, TASK_THREAD_F15_F0(a0) |
| fld f16, TASK_THREAD_F16_F0(a0) |
| fld f17, TASK_THREAD_F17_F0(a0) |
| fld f18, TASK_THREAD_F18_F0(a0) |
| fld f19, TASK_THREAD_F19_F0(a0) |
| fld f20, TASK_THREAD_F20_F0(a0) |
| fld f21, TASK_THREAD_F21_F0(a0) |
| fld f22, TASK_THREAD_F22_F0(a0) |
| fld f23, TASK_THREAD_F23_F0(a0) |
| fld f24, TASK_THREAD_F24_F0(a0) |
| fld f25, TASK_THREAD_F25_F0(a0) |
| fld f26, TASK_THREAD_F26_F0(a0) |
| fld f27, TASK_THREAD_F27_F0(a0) |
| fld f28, TASK_THREAD_F28_F0(a0) |
| fld f29, TASK_THREAD_F29_F0(a0) |
| fld f30, TASK_THREAD_F30_F0(a0) |
| fld f31, TASK_THREAD_F31_F0(a0) |
| fscsr t0 |
| csrc sstatus, t1 |
| ret |
| ENDPROC(__fstate_restore) |
