1 | /* Architecture-specific glibc-hwcaps subdirectories. powerpc64le version. |
2 | Copyright (C) 2020-2024 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <dl-hwcaps.h> |
20 | #include <ldsodefs.h> |
21 | |
22 | const char _dl_hwcaps_subdirs[] = "power10:power9" ; |
23 | enum { subdirs_count = 2 }; /* Number of components in _dl_hwcaps_subdirs. */ |
24 | |
25 | uint32_t |
26 | _dl_hwcaps_subdirs_active (void) |
27 | { |
28 | int active = 0; |
29 | |
30 | /* Test in reverse preference order. Altivec and VSX are implied by |
31 | the powerpc64le ABI definition. */ |
32 | |
33 | /* POWER9. GCC enables float128 hardware support for -mcpu=power9. */ |
34 | if ((GLRO (dl_hwcap2) & PPC_FEATURE2_ARCH_3_00) == 0 |
35 | || (GLRO (dl_hwcap2) & PPC_FEATURE2_HAS_IEEE128) == 0) |
36 | return _dl_hwcaps_subdirs_build_bitmask (subdirs: subdirs_count, active); |
37 | ++active; |
38 | |
39 | /* POWER10. GCC defines __MMA__ for -mcpu=power10. */ |
40 | if ((GLRO (dl_hwcap2) & PPC_FEATURE2_ARCH_3_1) == 0 |
41 | || (GLRO (dl_hwcap2) & PPC_FEATURE2_MMA) == 0) |
42 | return _dl_hwcaps_subdirs_build_bitmask (subdirs: subdirs_count, active); |
43 | ++active; |
44 | |
45 | return _dl_hwcaps_subdirs_build_bitmask (subdirs: subdirs_count, active); |
46 | } |
47 | |