1 # SPDX-License-Identifier: BSD-3-Clause
2 # Copyright(c) 2017 Intel Corporation.
3 # Copyright(c) 2017 Cavium, Inc
5 # for checking defines we need to use the correct compiler flags
6 march_opt = '-march=@0@'.format(machine)
8 machine_args_generic = [
9 ['default', ['-march=armv8-a+crc+crypto']]]
10 machine_args_cavium = [
11 ['default', ['-march=armv8-a+crc+crypto','-mcpu=thunderx']],
12 ['0xa1', ['-mcpu=thunderxt88']],
13 ['0xa2', ['-mcpu=thunderxt81']],
14 ['0xa3', ['-mcpu=thunderxt83']]]
18 ['RTE_MACHINE', '"thunderx"'],
19 ['RTE_CACHE_LINE_SIZE', 128],
20 ['RTE_MAX_NUMA_NODES', 2],
21 ['RTE_MAX_LCORE', 96],
22 ['RTE_MAX_VFIO_GROUPS', 128],
23 ['RTE_RING_USE_C11_MEM_MODEL', false]]
25 impl_generic = ['Generic armv8', flags_generic, machine_args_generic]
26 impl_0x43 = ['Cavium', flags_cavium, machine_args_cavium]
28 if cc.get_define('__clang__') != ''
29 dpdk_conf.set_quoted('RTE_TOOLCHAIN', 'clang')
30 dpdk_conf.set('RTE_TOOLCHAIN_CLANG', 1)
32 dpdk_conf.set_quoted('RTE_TOOLCHAIN', 'gcc')
33 dpdk_conf.set('RTE_TOOLCHAIN_GCC', 1)
36 dpdk_conf.set('RTE_FORCE_INTRINSICS', 1)
38 if cc.sizeof('void *') != 8
39 dpdk_conf.set('RTE_CACHE_LINE_SIZE', 64)
40 dpdk_conf.set('RTE_ARCH_ARM', 1)
41 dpdk_conf.set('RTE_ARCH_ARMv7', 1)
43 dpdk_conf.set('RTE_CACHE_LINE_SIZE', 128)
44 dpdk_conf.set('RTE_ARCH_ARM64', 1)
45 dpdk_conf.set('RTE_ARCH_64', 1)
48 cmd_generic = ['generic', '', '', 'default', '']
49 cmd_output = cmd_generic # Set generic by default
50 machine_args = [] # Clear previous machine args
51 if not meson.is_cross_build()
52 # The script returns ['Implementer', 'Variant', 'Architecture',
53 # 'Primary Part number', 'Revision']
54 detect_vendor = find_program(join_paths(
55 meson.current_source_dir(), 'armv8_machine.py'))
56 cmd = run_command(detect_vendor.path())
57 if cmd.returncode() == 0
58 cmd_output = cmd.stdout().strip().split(' ')
60 # Set to generic if variable is not found
61 machine = get_variable('impl_' + cmd_output[0], 'generic')
63 impl_id = meson.get_cross_property('implementor_id', 'generic')
64 machine = get_variable('impl_' + impl_id)
67 if machine == 'generic'
68 machine = impl_generic
69 cmd_output = cmd_generic
72 message('Implementer : ' + machine[0])
73 foreach flag: machine[1]
75 dpdk_conf.set(flag[0], flag[1])
78 # Primary part number based mcpu flags are supported
79 # for gcc versions > 7
80 if cc.version().version_compare(
81 '<7.0') or cmd_output.length() == 0
82 foreach marg: machine[2]
83 if marg[0] == 'default'
90 foreach marg: machine[2]
91 if marg[0] == cmd_output[3]
101 if cc.get_define('__ARM_NEON', args: machine_args) != ''
102 dpdk_conf.set('RTE_MACHINE_CPUFLAG_NEON', 1)
103 compile_time_cpuflags += ['RTE_CPUFLAG_NEON']
106 if cc.get_define('__ARM_FEATURE_CRC32', args: machine_args) != ''
107 dpdk_conf.set('RTE_MACHINE_CPUFLAG_CRC32', 1)
108 compile_time_cpuflags += ['RTE_CPUFLAG_CRC32']
111 if cc.get_define('__ARM_FEATURE_CRYPTO', args: machine_args) != ''
112 dpdk_conf.set('RTE_MACHINE_CPUFLAG_AES', 1)
113 dpdk_conf.set('RTE_MACHINE_CPUFLAG_PMULL', 1)
114 dpdk_conf.set('RTE_MACHINE_CPUFLAG_SHA1', 1)
115 dpdk_conf.set('RTE_MACHINE_CPUFLAG_SHA2', 1)
116 compile_time_cpuflags += ['RTE_CPUFLAG_AES', 'RTE_CPUFLAG_PMULL',
117 'RTE_CPUFLAG_SHA1', 'RTE_CPUFLAG_SHA2']