86f89b626b
When building without AVX2 support using an older compiler e.g. gcc 4.8
on Centos/RHEL 7, we get build errors due to the use of AVX2 intrinsics.
This is because the compiler does not support
"__attribute__((target(AVX2)))" function attribute. Disable build of
this driver such edge cases.
Generic builds using recent compilers, and all builds with a minimum
baseline of AVX2 are unaffected by this change.
Fixes: aa802b1023 ("dma/idxd: fix AVX2 in non-datapath functions")
Cc: stable@dpdk.org
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Tested-by: Yu Jiang <yux.jiang@intel.com>
27 lines
591 B
Meson
27 lines
591 B
Meson
# SPDX-License-Identifier: BSD-3-Clause
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# Copyright(c) 2021 Intel Corporation
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build = dpdk_conf.has('RTE_ARCH_X86')
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reason = 'only supported on x86'
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test_avx2_code = '''
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#include <x86intrin.h>
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__attribute__((target("avx2")))
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__m256i fn(void *x) { return _mm256_loadu_si256(x); }
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'''
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if build and not cc.compiles(test_avx2_code, args:machine_args)
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build = false
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reason = 'missing support for AVX2 function attribute'
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subdir_done()
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endif
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deps += ['bus_pci']
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sources = files(
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'idxd_common.c',
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'idxd_pci.c',
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)
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if is_linux
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sources += files('idxd_bus.c')
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endif
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