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53631b54 CM |
1 | /* |
2 | * FP/SIMD state saving and restoring | |
3 | * | |
4 | * Copyright (C) 2012 ARM Ltd. | |
5 | * Author: Catalin Marinas <catalin.marinas@arm.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | * | |
11 | * This program 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 | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <linux/linkage.h> | |
21 | ||
22 | #include <asm/assembler.h> | |
cfc5180e | 23 | #include <asm/fpsimdmacros.h> |
53631b54 CM |
24 | |
25 | /* | |
26 | * Save the FP registers. | |
27 | * | |
28 | * x0 - pointer to struct fpsimd_state | |
29 | */ | |
30 | ENTRY(fpsimd_save_state) | |
cfc5180e | 31 | fpsimd_save x0, 8 |
53631b54 CM |
32 | ret |
33 | ENDPROC(fpsimd_save_state) | |
34 | ||
35 | /* | |
36 | * Load the FP registers. | |
37 | * | |
38 | * x0 - pointer to struct fpsimd_state | |
39 | */ | |
40 | ENTRY(fpsimd_load_state) | |
cfc5180e | 41 | fpsimd_restore x0, 8 |
53631b54 CM |
42 | ret |
43 | ENDPROC(fpsimd_load_state) | |
190f1ca8 AB |
44 | |
45 | #ifdef CONFIG_KERNEL_MODE_NEON | |
46 | ||
47 | /* | |
48 | * Save the bottom n FP registers. | |
49 | * | |
50 | * x0 - pointer to struct fpsimd_partial_state | |
51 | */ | |
52 | ENTRY(fpsimd_save_partial_state) | |
53 | fpsimd_save_partial x0, 1, 8, 9 | |
54 | ret | |
55 | ENDPROC(fpsimd_load_partial_state) | |
56 | ||
57 | /* | |
58 | * Load the bottom n FP registers. | |
59 | * | |
60 | * x0 - pointer to struct fpsimd_partial_state | |
61 | */ | |
62 | ENTRY(fpsimd_load_partial_state) | |
63 | fpsimd_restore_partial x0, 8, 9 | |
64 | ret | |
65 | ENDPROC(fpsimd_load_partial_state) | |
66 | ||
67 | #endif |