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85923c8f30
Update zlib-ng to 2.2.1 #26113 Release: https://github.com/zlib-ng/zlib-ng/releases/tag/2.2.1 ARM diagnostics patch: https://github.com/zlib-ng/zlib-ng/pull/1774 ### Pull Request Readiness Checklist See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [x] I agree to contribute to the project under Apache 2 License. - [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV - [x] The PR is proposed to the proper branch - [ ] There is a reference to the original bug report and related work - [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable Patch to opencv_extra has the same branch name. - [ ] The feature is well documented and sample code can be built with the project CMake
50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
/* power_features.c - POWER feature check
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* Copyright (C) 2020 Matheus Castanho <msc@linux.ibm.com>, IBM
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* Copyright (C) 2021-2024 Mika T. Lindqvist <postmaster@raasu.org>
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* For conditions of distribution and use, see copyright notice in zlib.h
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*/
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#ifdef HAVE_SYS_AUXV_H
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# include <sys/auxv.h>
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#endif
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#ifdef POWER_NEED_AUXVEC_H
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# include <linux/auxvec.h>
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#endif
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#ifdef __FreeBSD__
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# include <machine/cpu.h>
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#endif
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#include "zbuild.h"
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#include "power_features.h"
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void Z_INTERNAL power_check_features(struct power_cpu_features *features) {
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#ifdef PPC_FEATURES
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unsigned long hwcap;
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#ifdef __FreeBSD__
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elf_aux_info(AT_HWCAP, &hwcap, sizeof(hwcap));
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#else
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hwcap = getauxval(AT_HWCAP);
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#endif
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if (hwcap & PPC_FEATURE_HAS_ALTIVEC)
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features->has_altivec = 1;
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#endif
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#ifdef POWER_FEATURES
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unsigned long hwcap2;
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#ifdef __FreeBSD__
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elf_aux_info(AT_HWCAP2, &hwcap2, sizeof(hwcap2));
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#else
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hwcap2 = getauxval(AT_HWCAP2);
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#endif
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#ifdef POWER8_VSX
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if (hwcap2 & PPC_FEATURE2_ARCH_2_07)
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features->has_arch_2_07 = 1;
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#endif
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#ifdef POWER9
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if (hwcap2 & PPC_FEATURE2_ARCH_3_00)
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features->has_arch_3_00 = 1;
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#endif
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#endif
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}
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