[dpdk-dev] [PATCH v8 14/14] build: add Arm SoC meson option

[Juraj Linkeš <juraj.linkes@pantheon.tech>]

Add Arm SoC configuration to Arm meson.build and add a meson option to
enable those options for native builds. This is preferable to
specifying a cross file when doing aarch64 -> aarch64 builds, since the
cross file specifies the toolchain as well.

Signed-off-by: Juraj Linkeš <juraj.linkes@pantheon.tech>
---
 config/arm/arm64_armada_linux_gcc      |   6 +-
 config/arm/arm64_armv8_linux_gcc       |  58 +++--------
 config/arm/arm64_bluefield_linux_gcc   |   6 +-
 config/arm/arm64_dpaa_linux_gcc        |   5 +-
 config/arm/arm64_emag_linux_gcc        |   5 +-
 config/arm/arm64_graviton2_linux_gcc   |   6 +-
 config/arm/arm64_n1sdp_linux_gcc       |   6 +-
 config/arm/arm64_octeontx2_linux_gcc   |   6 +-
 config/arm/arm64_stingray_linux_gcc    |   6 +-
 config/arm/arm64_thunderx2_linux_gcc   |   5 +-
 config/arm/arm64_thunderxt88_linux_gcc |   5 +-
 config/arm/meson.build                 | 132 ++++++++++++++++++++++++-
 meson_options.txt                      |   2 +
 13 files changed, 154 insertions(+), 94 deletions(-)

diff --git a/config/arm/arm64_armada_linux_gcc b/config/arm/arm64_armada_linux_gcc
index f5403f0a6..7cc40d1f4 100644
--- a/config/arm/arm64_armada_linux_gcc
+++ b/config/arm/arm64_armada_linux_gcc
@@ -14,8 +14,4 @@ cpu = 'armv8-a'
 endian = 'little'
 
 [properties]
-implementer_id = '0x56'
-max_lcores = 16
-max_numa_nodes = 1
-numa = false
-disabled_drivers = ['bus/dpaa', 'bus/fslmc', 'common/dpaax']
+soc = 'armada'
diff --git a/config/arm/arm64_armv8_linux_gcc b/config/arm/arm64_armv8_linux_gcc
index 77e3d6278..d4cb6b5bf 100644
--- a/config/arm/arm64_armv8_linux_gcc
+++ b/config/arm/arm64_armv8_linux_gcc
@@ -13,46 +13,18 @@ cpu = 'armv8-a'
 endian = 'little'
 
 [properties]
-# Supported implementers:
-# 'generic': Generic armv8
-# '0x41':    Arm
-# '0x43':    Cavium
-# '0x50':    Ampere Computing
-# '0x56':    Marvell ARMADA
-# 'dpaa':    NXP DPAA
-implementer_id = 'generic'
-
-# Supported part_numbers for generic:
-# 'generic': valid for all armv8-a architectures (unoptimized portable build)
-part_number = 'generic'
-
-# Supported part_numbers for 0x41, 0x56, dpaa:
-# '0xd03':   cortex-a53
-# '0xd04':   cortex-a35
-# '0xd05':   cortex-a55
-# '0xd07':   cortex-a57
-# '0xd08':   cortex-a72
-# '0xd09':   cortex-a73
-# '0xd0a':   cortex-a75
-# '0xd0b':   cortex-a76
-# '0xd0c':   neoverse-n1
-
-# Supported part_numbers for 0x43:
-# '0xa1':    thunderxt88
-# '0xa2':    thunderxt81
-# '0xa3':    thunderxt83
-# '0xaf':    thunderx2t99
-# '0xb2':    octeontx2
-
-# Supported part_numbers for 0x50:
-# '0x0':     emag
-
-# Supported extra configuration
-# max_numa_nodes = n  # will set RTE_MAX_NUMA_NODES
-# max_lcores = n      # will set RTE_MAX_LCORE
-max_lcores = 256
-max_numa_nodes = 4
-
-# numa = false        # set to false if the target is not a NUMA system
-# disabled_drivers = ['bus/dpaa', 'crypto']
-    # add to the set of disabled libraries
+# Supported SoCs:
+# generic
+# armada
+# bluefield
+# dpaa
+# emag
+# graviton2
+# n1sdp
+# octeontx2
+# stingray
+# thunderx2
+# thunderxt88
+# thunderx2t99
+
+soc = 'generic'
diff --git a/config/arm/arm64_bluefield_linux_gcc b/config/arm/arm64_bluefield_linux_gcc
index 6bef87fbd..7b1fae8b9 100644
--- a/config/arm/arm64_bluefield_linux_gcc
+++ b/config/arm/arm64_bluefield_linux_gcc
@@ -13,8 +13,4 @@ cpu = 'armv8-a'
 endian = 'little'
 
 [properties]
-implementer_id = '0x41'
-part_number = '0xd08'
-max_lcores = 16
-max_numa_nodes = 1
-numa = false
+soc = 'bluefield'
diff --git a/config/arm/arm64_dpaa_linux_gcc b/config/arm/arm64_dpaa_linux_gcc
index 3458b9d7b..e52188842 100644
--- a/config/arm/arm64_dpaa_linux_gcc
+++ b/config/arm/arm64_dpaa_linux_gcc
@@ -14,7 +14,4 @@ cpu = 'armv8-a'
 endian = 'little'
 
 [properties]
-implementer_id = 'dpaa'
-max_lcores = 16
-max_numa_nodes = 1
-numa = false
+soc = 'dpaa'
diff --git a/config/arm/arm64_emag_linux_gcc b/config/arm/arm64_emag_linux_gcc
index 7cbb05510..6c24b4bca 100644
--- a/config/arm/arm64_emag_linux_gcc
+++ b/config/arm/arm64_emag_linux_gcc
@@ -13,7 +13,4 @@ cpu = 'armv8-a'
 endian = 'little'
 
 [properties]
-implementer_id = '0x50'
-part_number = '0x0'
-max_lcores = 32
-max_numa_nodes = 1
+soc = 'emag'
diff --git a/config/arm/arm64_graviton2_linux_gcc b/config/arm/arm64_graviton2_linux_gcc
index cfe239797..bae35d6be 100644
--- a/config/arm/arm64_graviton2_linux_gcc
+++ b/config/arm/arm64_graviton2_linux_gcc
@@ -13,8 +13,4 @@ cpu = 'armv8-a'
 endian = 'little'
 
 [properties]
-implementor_id = '0x41'
-implementor_pn = '0xd0c'
-max_lcores = 64
-max_numa_nodes = 1
-numa = false
+soc = 'graviton2'
diff --git a/config/arm/arm64_n1sdp_linux_gcc b/config/arm/arm64_n1sdp_linux_gcc
index b00f2d1ef..249ff4738 100644
--- a/config/arm/arm64_n1sdp_linux_gcc
+++ b/config/arm/arm64_n1sdp_linux_gcc
@@ -13,8 +13,4 @@ cpu = 'armv8-a'
 endian = 'little'
 
 [properties]
-implementer_id = '0x41'
-part_number = '0xd0c'
-max_lcores = 4
-max_numa_nodes = 1
-numa = false
+soc = 'n1sdp'
diff --git a/config/arm/arm64_octeontx2_linux_gcc b/config/arm/arm64_octeontx2_linux_gcc
index 593769709..063018e8f 100644
--- a/config/arm/arm64_octeontx2_linux_gcc
+++ b/config/arm/arm64_octeontx2_linux_gcc
@@ -13,8 +13,4 @@ cpu = 'armv8-a'
 endian = 'little'
 
 [properties]
-implementer_id = '0x43'
-part_number = '0xb2'
-max_lcores = 36
-max_numa_nodes = 1
-numa = false
+soc = 'octeontx2'
diff --git a/config/arm/arm64_stingray_linux_gcc b/config/arm/arm64_stingray_linux_gcc
index 6bef87fbd..1209a8c0b 100644
--- a/config/arm/arm64_stingray_linux_gcc
+++ b/config/arm/arm64_stingray_linux_gcc
@@ -13,8 +13,4 @@ cpu = 'armv8-a'
 endian = 'little'
 
 [properties]
-implementer_id = '0x41'
-part_number = '0xd08'
-max_lcores = 16
-max_numa_nodes = 1
-numa = false
+soc = 'stingray'
diff --git a/config/arm/arm64_thunderx2_linux_gcc b/config/arm/arm64_thunderx2_linux_gcc
index c06dcdc2b..348650712 100644
--- a/config/arm/arm64_thunderx2_linux_gcc
+++ b/config/arm/arm64_thunderx2_linux_gcc
@@ -13,7 +13,4 @@ cpu = 'armv8-a'
 endian = 'little'
 
 [properties]
-implementer_id = '0x43'
-part_number = '0xaf'
-max_lcores = 256
-max_numa_nodes = 2
+soc = 'thunderx2'
diff --git a/config/arm/arm64_thunderxt88_linux_gcc b/config/arm/arm64_thunderxt88_linux_gcc
index 3ba1528e4..d31d0c6d8 100644
--- a/config/arm/arm64_thunderxt88_linux_gcc
+++ b/config/arm/arm64_thunderxt88_linux_gcc
@@ -13,7 +13,4 @@ cpu = 'armv8-a'
 endian = 'little'
 
 [properties]
-implementer_id = '0x43'
-part_number = '0xa1'
-max_lcores = 96
-max_numa_nodes = 1
+soc = 'thunderxt88'
diff --git a/config/arm/meson.build b/config/arm/meson.build
index 52274c0c5..cd270f84b 100644
--- a/config/arm/meson.build
+++ b/config/arm/meson.build
@@ -57,7 +57,7 @@ part_number_config_arm = {
 ## Part numbers are specific to Arm implementers
 # implementer specific aarch64 flags have middle priority
 #     (will overwrite common flags)
-# part number specific aarch64 flags have the highest priority
+# part number specific aarch64 flags have higher priority
 #     (will overwrite both common and implementer specific flags)
 implementers = {
 	'generic': {
@@ -164,6 +164,102 @@ implementers = {
 	}
 }
 
+# soc specific aarch64 flags have the highest priority
+#     (will overwrite all other flags)
+socs = {
+	'generic': {
+		'implementer': 'generic',
+		'part_number': 'generic',
+		'flags': []
+	},
+	'armada': {
+		'implementer': '0x56',
+		'flags': [
+			['RTE_MAX_LCORE', 16],
+			['RTE_MAX_NUMA_NODES', 1]
+		],
+		'numa': false,
+		'disabled_drivers': ['bus/dpaa', 'bus/fslmc', 'common/dpaax']
+	},
+	'bluefield': {
+		'implementer': '0x41',
+		'part_number': '0xd08',
+		'flags': [
+			['RTE_MAX_LCORE', 16],
+			['RTE_MAX_NUMA_NODES', 1]
+		],
+		'numa': false
+	},
+	'dpaa': {
+		'implementer': 'dpaa',
+		'flags': [
+			['RTE_MAX_LCORE', 16],
+			['RTE_MAX_NUMA_NODES', 1]
+		],
+		'numa': false
+	},
+	'emag': {
+		'implementer': '0x50',
+		'part_number': '0x0',
+		'flags': [
+			['RTE_MAX_LCORE', 32],
+			['RTE_MAX_NUMA_NODES', 1]
+		]
+	},
+	'graviton2': {
+		'implementer': '0x41',
+		'part_number': '0xd0c',
+		'flags': [
+			['RTE_MAX_LCORE', 64],
+			['RTE_MAX_NUMA_NODES', 1]
+		],
+		'numa': false
+	},
+	'n1sdp': {
+		'implementer': '0x41',
+		'part_number': '0xd0c',
+		'flags': [
+			['RTE_MAX_LCORE', 4],
+			['RTE_MAX_NUMA_NODES', 1]
+		],
+		'numa': false
+	},
+	'octeontx2': {
+		'implementer': '0x43',
+		'part_number': '0xb2',
+		'flags': [
+			['RTE_MAX_LCORE', 32],
+			['RTE_MAX_NUMA_NODES', 1]
+		],
+		'numa': false
+	},
+	'stingray': {
+		'implementer': '0x41',
+		'part_number': '0xd08',
+		'flags': [
+			['RTE_MAX_LCORE', 16],
+			['RTE_MAX_NUMA_NODES', 1]
+		],
+		'numa': false
+	},
+	'thunderx2': {
+		'implementer': '0x43',
+		'part_number': '0xaf',
+		'flags': [
+			['RTE_MAX_LCORE', 256],
+			['RTE_MAX_NUMA_NODES', 2]
+		]
+	},
+	'thunderxt88': {
+		'implementer': '0x43',
+		'part_number': '0xa1',
+		'flags': [
+			['RTE_MAX_LCORE', 96],
+			['RTE_MAX_NUMA_NODES', 1]
+		]
+	}
+}
+
 dpdk_conf.set('RTE_ARCH_ARM', 1)
 dpdk_conf.set('RTE_FORCE_INTRINSICS', 1)
 
@@ -176,11 +272,18 @@ if dpdk_conf.get('RTE_ARCH_32')
 else
 	# aarch64 build
 	use_native_machine_args = false
+	arm_soc = get_option('arm_soc')
+	soc_config = {}
 	if not meson.is_cross_build()
 		if machine == 'generic'
 			# generic build
+			if arm_soc != ''
+				error('Arm SoC is unsupported with generic build.')
+			endif
 			implementer_id = 'generic'
 			part_number = 'generic'
+		elif arm_soc != ''
+			soc_config = socs.get(arm_soc, {'not_supported': true})
 		else
 			# native build
 			# The script returns ['Implementer', 'Variant', 'Architecture',
@@ -199,8 +302,27 @@ else
 		endif
 	else
 		# cross build
-		implementer_id = meson.get_cross_property('implementer_id')
-		part_number = meson.get_cross_property('part_number')
+		arm_soc = meson.get_cross_property('soc', '')
+		if arm_soc == ''
+			error('Arm SoC must be specified in the cross file.')
+		endif
+		soc_config = socs.get(arm_soc, {'not_supported': true})
+	endif
+
+	soc_flags = []
+	if soc_config.has_key('not_supported')
+		error('SoC @0@ not supported.'.format(arm_soc))
+	elif soc_config != {}
+		implementer_id = soc_config['implementer']
+		implementer_config = implementers[implementer_id]
+		part_number = soc_config['part_number']
+		soc_flags = soc_config['flags']
+		if not soc_config.get('numa', true)
+			has_libnuma = 0
+		endif
+		if soc_config.has_key('disabled_drivers')
+			disabled_drivers += soc_config['disabled_drivers']
+		endif
 	endif
 
 	if implementers.has_key(implementer_id)
@@ -226,8 +348,8 @@ else
 		      '(-Dmachine=generic) build.')
 	endif
 
-	# use default flags with implementer flags
-	dpdk_flags = flags_common_default + implementer_config['flags'] + part_number_config.get('flags', [])
+	# add flags in the proper order
+	dpdk_flags = flags_common_default + implementer_config['flags'] + part_number_config.get('flags', []) + soc_flags
 
 	# apply supported machine args
 	machine_args = [] # Clear previous machine args
diff --git a/meson_options.txt b/meson_options.txt
index e1059fb16..33b8b236c 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -1,5 +1,7 @@
 # Please keep these options sorted alphabetically.
 
+option('arm_soc', type: 'string', value: '',
+	description: 'Specify if you want to build for a particular Arm SoC when building on an aarch64 machine.')
 option('armv8_crypto_dir', type: 'string', value: '',
 	description: 'path to the armv8_crypto library installation directory')
 option('disable_drivers', type: 'string', value: '',
-- 
2.20.1