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