* Rename variables to have names that better describe what the variables store * Remove unused or superfluous variables * Change a list to dictionary where key lookup is needed * Add informatory comments in the code * Minor code restructure and reformatting
Signed-off-by: Juraj Linkeš <juraj.lin...@pantheon.tech> --- config/arm/arm64_armada_linux_gcc | 2 +- config/arm/arm64_armv8_linux_gcc | 8 +- config/arm/arm64_bluefield_linux_gcc | 4 +- config/arm/arm64_dpaa_linux_gcc | 2 +- config/arm/arm64_emag_linux_gcc | 2 +- config/arm/arm64_n1sdp_linux_gcc | 4 +- config/arm/arm64_octeontx2_linux_gcc | 4 +- config/arm/arm64_stingray_linux_gcc | 4 +- config/arm/arm64_thunderx2_linux_gcc | 4 +- config/arm/arm64_thunderx_linux_gcc | 2 +- config/arm/meson.build | 247 +++++++++++++++------------ 11 files changed, 153 insertions(+), 130 deletions(-) diff --git a/config/arm/arm64_armada_linux_gcc b/config/arm/arm64_armada_linux_gcc index fa40c0398..52c5f4476 100644 --- a/config/arm/arm64_armada_linux_gcc +++ b/config/arm/arm64_armada_linux_gcc @@ -14,4 +14,4 @@ cpu = 'armv8-a' endian = 'little' [properties] -implementor_id = '0x56' +implementer_id = '0x56' diff --git a/config/arm/arm64_armv8_linux_gcc b/config/arm/arm64_armv8_linux_gcc index 88f0ff9da..13ee8b223 100644 --- a/config/arm/arm64_armv8_linux_gcc +++ b/config/arm/arm64_armv8_linux_gcc @@ -13,10 +13,10 @@ cpu = 'armv8-a' endian = 'little' [properties] -implementor_id = 'generic' +implementer_id = 'generic' -# Valid options for Arm's implementor_pn: -# 'default': valid for all armv8-a architectures (default value) +# Valid options for Arm's part_number: +# 'generic': valid for all armv8-a architectures (default value) # '0xd03': cortex-a53 # '0xd04': cortex-a35 # '0xd05': cortex-a55 @@ -25,4 +25,4 @@ implementor_id = 'generic' # '0xd09': cortex-a73 # '0xd0a': cortex-a75 # '0xd0b': cortex-a76 -implementor_pn = 'default' +part_number = 'generic' diff --git a/config/arm/arm64_bluefield_linux_gcc b/config/arm/arm64_bluefield_linux_gcc index 86797d23c..b79389d85 100644 --- a/config/arm/arm64_bluefield_linux_gcc +++ b/config/arm/arm64_bluefield_linux_gcc @@ -13,5 +13,5 @@ cpu = 'armv8-a' endian = 'little' [properties] -implementor_id = '0x41' -implementor_pn = '0xd08' +implementer_id = '0x41' +part_number = '0xd08' diff --git a/config/arm/arm64_dpaa_linux_gcc b/config/arm/arm64_dpaa_linux_gcc index 1a4682154..573ae7e42 100644 --- a/config/arm/arm64_dpaa_linux_gcc +++ b/config/arm/arm64_dpaa_linux_gcc @@ -14,4 +14,4 @@ cpu = 'armv8-a' endian = 'little' [properties] -implementor_id = 'dpaa' +implementer_id = 'dpaa' diff --git a/config/arm/arm64_emag_linux_gcc b/config/arm/arm64_emag_linux_gcc index 8edcd3e97..24f3d533e 100644 --- a/config/arm/arm64_emag_linux_gcc +++ b/config/arm/arm64_emag_linux_gcc @@ -13,4 +13,4 @@ cpu = 'armv8-a' endian = 'little' [properties] -implementor_id = '0x50' +implementer_id = '0x50' diff --git a/config/arm/arm64_n1sdp_linux_gcc b/config/arm/arm64_n1sdp_linux_gcc index 022e06303..6fb3f02ea 100644 --- a/config/arm/arm64_n1sdp_linux_gcc +++ b/config/arm/arm64_n1sdp_linux_gcc @@ -13,5 +13,5 @@ cpu = 'armv8-a' endian = 'little' [properties] -implementor_id = '0x41' -implementor_pn = '0xd0c' +implementer_id = '0x41' +part_number = '0xd0c' diff --git a/config/arm/arm64_octeontx2_linux_gcc b/config/arm/arm64_octeontx2_linux_gcc index 365bd7cbd..ac1042806 100644 --- a/config/arm/arm64_octeontx2_linux_gcc +++ b/config/arm/arm64_octeontx2_linux_gcc @@ -13,5 +13,5 @@ cpu = 'armv8-a' endian = 'little' [properties] -implementor_id = '0x43' -implementor_pn = '0xb2' +implementer_id = '0x43' +part_number = '0xb2' diff --git a/config/arm/arm64_stingray_linux_gcc b/config/arm/arm64_stingray_linux_gcc index 86797d23c..b79389d85 100644 --- a/config/arm/arm64_stingray_linux_gcc +++ b/config/arm/arm64_stingray_linux_gcc @@ -13,5 +13,5 @@ cpu = 'armv8-a' endian = 'little' [properties] -implementor_id = '0x41' -implementor_pn = '0xd08' +implementer_id = '0x41' +part_number = '0xd08' diff --git a/config/arm/arm64_thunderx2_linux_gcc b/config/arm/arm64_thunderx2_linux_gcc index 2b41acc61..dd257745e 100644 --- a/config/arm/arm64_thunderx2_linux_gcc +++ b/config/arm/arm64_thunderx2_linux_gcc @@ -13,5 +13,5 @@ cpu = 'armv8-a' endian = 'little' [properties] -implementor_id = '0x43' -implementor_pn = '0xaf' +implementer_id = '0x43' +part_number = '0xaf' diff --git a/config/arm/arm64_thunderx_linux_gcc b/config/arm/arm64_thunderx_linux_gcc index 6572ab615..670764437 100644 --- a/config/arm/arm64_thunderx_linux_gcc +++ b/config/arm/arm64_thunderx_linux_gcc @@ -13,4 +13,4 @@ cpu = 'armv8-a' endian = 'little' [properties] -implementor_id = '0x43' +implementer_id = '0x43' diff --git a/config/arm/meson.build b/config/arm/meson.build index c88e34a2b..66b08bfb5 100644 --- a/config/arm/meson.build +++ b/config/arm/meson.build @@ -3,12 +3,12 @@ # Copyright(c) 2017 Cavium, Inc # Copyright(c) 2020 PANTHEON.tech s.r.o. -# for checking defines we need to use the correct compiler flags -march_opt = '-march=@0@'.format(machine) - +# set arm_force_native_march if you want to use machine args below +# instead of discovered values; only works when doing an actual native build arm_force_native_march = false -arm_force_generic_march = (machine == 'default' or machine == 'generic-armv8') +native_machine_args = ['-march=native', '-mtune=native'] +# common flags to all aarch64 builds, with lowest priority flags_common_default = [ # Accelarate rte_memcpy. Be sure to run unit test (memcpy_perf_autotest) # to determine the best threshold in code. Refer to notes in source file @@ -16,8 +16,9 @@ flags_common_default = [ ['RTE_ARCH_ARM64_MEMCPY', false], # ['RTE_ARM64_MEMCPY_ALIGNED_THRESHOLD', 2048], # ['RTE_ARM64_MEMCPY_UNALIGNED_THRESHOLD', 512], - # Leave below RTE_ARM64_MEMCPY_xxx options commented out, unless there're - # strong reasons. + + # Leave below RTE_ARM64_MEMCPY_xxx options commented out, + # unless there are strong reasons. # ['RTE_ARM64_MEMCPY_SKIP_GCC_VER_CHECK', false], # ['RTE_ARM64_MEMCPY_ALIGN_MASK', 0xF], # ['RTE_ARM64_MEMCPY_STRICT_ALIGN', false], @@ -28,184 +29,206 @@ flags_common_default = [ ['RTE_SCHED_VECTOR', false], ['RTE_ARM_USE_WFE', false], + ['RTE_CACHE_LINE_SIZE', 128], + ['RTE_ARCH_ARM64', true] ] +# implementer specific aarch64 flags, with middle priority +# (will overwrite common flags) flags_generic = [ ['RTE_MACHINE', '"armv8a"'], ['RTE_MAX_LCORE', 256], ['RTE_USE_C11_MEM_MODEL', true], - ['RTE_CACHE_LINE_SIZE', 128]] + ['RTE_CACHE_LINE_SIZE', 128] +] flags_arm = [ ['RTE_MACHINE', '"armv8a"'], ['RTE_MAX_LCORE', 16], ['RTE_USE_C11_MEM_MODEL', true], - ['RTE_CACHE_LINE_SIZE', 64]] + ['RTE_CACHE_LINE_SIZE', 64] +] flags_cavium = [ ['RTE_CACHE_LINE_SIZE', 128], ['RTE_MAX_NUMA_NODES', 2], ['RTE_MAX_LCORE', 96], - ['RTE_MAX_VFIO_GROUPS', 128]] + ['RTE_MAX_VFIO_GROUPS', 128] +] flags_dpaa = [ ['RTE_MACHINE', '"dpaa"'], ['RTE_USE_C11_MEM_MODEL', true], ['RTE_CACHE_LINE_SIZE', 64], ['RTE_MAX_NUMA_NODES', 1], ['RTE_MAX_LCORE', 16], - ['RTE_LIBRTE_DPAA2_USE_PHYS_IOVA', false]] + ['RTE_LIBRTE_DPAA2_USE_PHYS_IOVA', false] +] flags_emag = [ ['RTE_MACHINE', '"emag"'], - ['RTE_CACHE_LINE_SIZE', 64], ['RTE_MAX_NUMA_NODES', 1], - ['RTE_MAX_LCORE', 32]] + ['RTE_MAX_LCORE', 32], + ['RTE_CACHE_LINE_SIZE', 64] +] flags_armada = [ ['RTE_MACHINE', '"armv8a"'], - ['RTE_CACHE_LINE_SIZE', 64], ['RTE_MAX_NUMA_NODES', 1], - ['RTE_MAX_LCORE', 16]] + ['RTE_MAX_LCORE', 16], + ['RTE_CACHE_LINE_SIZE', 64] +] -flags_default_extra = [] +# part number specific aarch64 flags, with highest priority +# (will overwrite both common and implementer specific flags) flags_n1sdp_extra = [ ['RTE_MACHINE', '"n1sdp"'], ['RTE_MAX_NUMA_NODES', 1], ['RTE_MAX_LCORE', 4], ['RTE_EAL_NUMA_AWARE_HUGEPAGES', false], - ['RTE_LIBRTE_VHOST_NUMA', false]] + ['RTE_LIBRTE_VHOST_NUMA', false] +] flags_thunderx_extra = [ ['RTE_MACHINE', '"thunderx"'], - ['RTE_USE_C11_MEM_MODEL', false]] + ['RTE_USE_C11_MEM_MODEL', false] +] flags_thunderx2_extra = [ ['RTE_MACHINE', '"thunderx2"'], ['RTE_CACHE_LINE_SIZE', 64], ['RTE_MAX_NUMA_NODES', 2], ['RTE_MAX_LCORE', 256], ['RTE_ARM_FEATURE_ATOMICS', true], - ['RTE_USE_C11_MEM_MODEL', true]] + ['RTE_USE_C11_MEM_MODEL', true] +] flags_octeontx2_extra = [ ['RTE_MACHINE', '"octeontx2"'], ['RTE_MAX_NUMA_NODES', 1], ['RTE_MAX_LCORE', 36], ['RTE_ARM_FEATURE_ATOMICS', true], ['RTE_EAL_IGB_UIO', false], - ['RTE_USE_C11_MEM_MODEL', true]] - -machine_args_default = [ - ['default', ['-march=armv8-a+crc', '-moutline-atomics']], - ['native', ['-march=native']], - ['0xd03', ['-mcpu=cortex-a53']], - ['0xd04', ['-mcpu=cortex-a35']], - ['0xd07', ['-mcpu=cortex-a57']], - ['0xd08', ['-mcpu=cortex-a72']], - ['0xd09', ['-mcpu=cortex-a73']], - ['0xd0a', ['-mcpu=cortex-a75']], - ['0xd0b', ['-mcpu=cortex-a76']], - ['0xd0c', ['-march=armv8.2-a+crc+crypto', '-mcpu=neoverse-n1'], flags_n1sdp_extra]] - -machine_args_cavium = [ - ['default', ['-march=armv8-a+crc+crypto','-mcpu=thunderx']], - ['native', ['-march=native']], - ['0xa1', ['-mcpu=thunderxt88'], flags_thunderx_extra], - ['0xa2', ['-mcpu=thunderxt81'], flags_thunderx_extra], - ['0xa3', ['-mcpu=thunderxt83'], flags_thunderx_extra], - ['0xaf', ['-march=armv8.1-a+crc+crypto','-mcpu=thunderx2t99'], flags_thunderx2_extra], - ['0xb2', ['-march=armv8.2-a+crc+crypto+lse','-mcpu=octeontx2'], flags_octeontx2_extra]] - -machine_args_emag = [ - ['default', ['-march=armv8-a+crc+crypto', '-mtune=emag']], - ['native', ['-march=native']]] + ['RTE_USE_C11_MEM_MODEL', true] +] +# arm config (implementer 0x41) is the default config +pn_config_default = { + 'generic': [['-march=armv8-a+crc', '-moutline-atomics']], + '0xd03': [['-mcpu=cortex-a53']], + '0xd04': [['-mcpu=cortex-a35']], + '0xd07': [['-mcpu=cortex-a57']], + '0xd08': [['-mcpu=cortex-a72']], + '0xd09': [['-mcpu=cortex-a73']], + '0xd0a': [['-mcpu=cortex-a75']], + '0xd0b': [['-mcpu=cortex-a76']], + '0xd0c': [['-march=armv8.2-a+crc+crypto', '-mcpu=neoverse-n1'], flags_n1sdp_extra] +} +pn_config_cavium = { + 'generic': [['-march=armv8-a+crc+crypto', '-mcpu=thunderx']], + '0xa1': [['-mcpu=thunderxt88'], flags_thunderx_extra], + '0xa2': [['-mcpu=thunderxt81'], flags_thunderx_extra], + '0xa3': [['-mcpu=thunderxt83'], flags_thunderx_extra], + '0xaf': [['-march=armv8.1-a+crc+crypto','-mcpu=thunderx2t99'], flags_thunderx2_extra], + '0xb2': [['-march=armv8.2-a+crc+crypto+lse','-mcpu=octeontx2'], flags_octeontx2_extra], +} +pn_config_emag = { + 'generic': [['-march=armv8-a+crc+crypto', '-mtune=emag']] +} ## Arm implementer ID (ARM DDI 0487C.a, Section G7.2.106, Page G7-5321) -impl_generic = ['Generic armv8', flags_generic, machine_args_default] -impl_0x41 = ['Arm', flags_arm, machine_args_default] -impl_0x42 = ['Broadcom', flags_generic, machine_args_default] -impl_0x43 = ['Cavium', flags_cavium, machine_args_cavium] -impl_0x44 = ['DEC', flags_generic, machine_args_default] -impl_0x49 = ['Infineon', flags_generic, machine_args_default] -impl_0x4d = ['Motorola', flags_generic, machine_args_default] -impl_0x4e = ['NVIDIA', flags_generic, machine_args_default] -impl_0x50 = ['Ampere Computing', flags_emag, machine_args_emag] -impl_0x51 = ['Qualcomm', flags_generic, machine_args_default] -impl_0x53 = ['Samsung', flags_generic, machine_args_default] -impl_0x56 = ['Marvell ARMADA', flags_armada, machine_args_default] -impl_0x69 = ['Intel', flags_generic, machine_args_default] -impl_dpaa = ['NXP DPAA', flags_dpaa, machine_args_default] +impl_generic = ['Generic armv8', flags_generic, pn_config_default] +impl_0x41 = ['Arm', flags_arm, pn_config_default] +impl_0x42 = ['Broadcom', flags_generic, pn_config_default] +impl_0x43 = ['Cavium', flags_cavium, pn_config_cavium] +impl_0x44 = ['DEC', flags_generic, pn_config_default] +impl_0x49 = ['Infineon', flags_generic, pn_config_default] +impl_0x4d = ['Motorola', flags_generic, pn_config_default] +impl_0x4e = ['NVIDIA', flags_generic, pn_config_default] +impl_0x50 = ['Ampere Computing', flags_emag, pn_config_emag] +impl_0x51 = ['Qualcomm', flags_generic, pn_config_default] +impl_0x53 = ['Samsung', flags_generic, pn_config_default] +impl_0x56 = ['Marvell ARMADA', flags_armada, pn_config_default] +impl_0x69 = ['Intel', flags_generic, pn_config_default] +impl_dpaa = ['NXP DPAA', flags_dpaa, pn_config_default] dpdk_conf.set('RTE_ARCH_ARM', 1) dpdk_conf.set('RTE_FORCE_INTRINSICS', 1) if dpdk_conf.get('RTE_ARCH_32') + # armv7 build dpdk_conf.set('RTE_CACHE_LINE_SIZE', 64) dpdk_conf.set('RTE_ARCH_ARMv7', 1) # the minimum architecture supported, armv7-a, needs the following, # mk/machine/armv7a/rte.vars.mk sets it too machine_args += '-mfpu=neon' else - dpdk_conf.set('RTE_CACHE_LINE_SIZE', 128) - dpdk_conf.set('RTE_ARCH_ARM64', 1) + # aarch64 build + if not meson.is_cross_build() + if machine == 'default' or machine == 'generic-armv8' + # default build + impl_config = impl_generic + part_number = 'generic' + else + # native build + # The script returns ['Implementer', 'Variant', 'Architecture', + # 'Primary Part number', 'Revision'] + detect_vendor = find_program(join_paths( + meson.current_source_dir(), 'armv8_machine.py')) + cmd = run_command(detect_vendor.path()) + if cmd.returncode() == 0 + cmd_output = cmd.stdout().to_lower().strip().split(' ') + endif + if arm_force_native_march == true + part_number = 'native' + else + part_number = cmd_output[3] + endif + # Set to generic implementer if implementer is not found + impl_config = get_variable('impl_' + cmd_output[0], 'impl_generic') + endif + else + # cross build + impl_id = meson.get_cross_property('implementer_id', 'generic') + part_number = meson.get_cross_property('part_number', 'generic') + impl_config = get_variable('impl_' + impl_id) + endif - machine = [] - cmd_generic = ['generic', '', '', 'default', ''] - cmd_output = cmd_generic # Set generic by default - machine_args = [] # Clear previous machine args - if arm_force_generic_march and not meson.is_cross_build() - machine = impl_generic - impl_pn = 'default' + message('Arm implementer: ' + impl_config[0]) + message('Arm part number: ' + part_number) + + implementer_flags = impl_config[1] + part_number_config = impl_config[2] + + if part_number_config.has_key(part_number) + # use the specified part_number machine args if found + part_number_config = part_number_config[part_number] + elif part_number == 'native' + # use native machine args + part_number_config = [[native_machine_args]] elif not meson.is_cross_build() - # The script returns ['Implementer', 'Variant', 'Architecture', - # 'Primary Part number', 'Revision'] - detect_vendor = find_program(join_paths( - meson.current_source_dir(), 'armv8_machine.py')) - cmd = run_command(detect_vendor.path()) - if cmd.returncode() == 0 - cmd_output = cmd.stdout().to_lower().strip().split(' ') - endif - # Set to generic if variable is not found - machine = get_variable('impl_' + cmd_output[0], ['generic']) - if machine[0] == 'generic' - machine = impl_generic - cmd_output = cmd_generic - endif - impl_pn = cmd_output[3] - if arm_force_native_march == true - impl_pn = 'native' - endif + # default to generic machine args if part_number is not found + # and not forcing native machine args + # but don't default in cross-builds; if part_number is specified + # incorrectly in a cross-file, it needs to be fixed there + part_number_config = part_number_config['generic'] else - impl_id = meson.get_cross_property('implementor_id', 'generic') - impl_pn = meson.get_cross_property('implementor_pn', 'default') - machine = get_variable('impl_' + impl_id) + # cross build and part number is not in part_number_config + error('Cross build part number 0@0 not found.'.format(part_number)) endif - # Apply Common Defaults. These settings may be overwritten by machine - # settings later. - foreach flag: flags_common_default - if flag.length() > 0 - dpdk_conf.set(flag[0], flag[1]) + dpdk_flags = flags_common_default + implementer_flags + + if part_number_config.length() > 1 + dpdk_flags += part_number_config[1] + endif + + machine_args = [] # Clear previous machine args + foreach flag: part_number_config[0] + if cc.has_argument(flag) + machine_args += flag endif endforeach - message('Implementer : ' + machine[0]) - foreach flag: machine[1] + foreach flag: dpdk_flags if flag.length() > 0 dpdk_conf.set(flag[0], flag[1]) endif endforeach - - foreach marg: machine[2] - if marg[0] == impl_pn - foreach flag: marg[1] - if cc.has_argument(flag) - machine_args += flag - endif - endforeach - # Apply any extra machine specific flags. - foreach flag: marg.get(2, flags_default_extra) - if flag.length() > 0 - dpdk_conf.set(flag[0], flag[1]) - endif - endforeach - endif - endforeach endif -message(machine_args) + +message('Using machine args: @0@'.format(machine_args)) if (cc.get_define('__ARM_NEON', args: machine_args) != '' or cc.get_define('__aarch64__', args: machine_args) != '') -- 2.20.1