diff options
| author |   Brian Brooks <brian.brooks@arm.com> | 2017-09-06 13:19:48 -0500 |
|---|---|---|
| committer |   Damjan Marion <dmarion.lists@gmail.com> | 2017-09-11 10:13:42 +0000 |
| commit | a7191840beeb2c3a0f2598707ed1051a9f23c45f (patch) | |
| tree | 3fa0b6e08565214652b8fde2be5aa8abc2980dd3 | |
| parent | b2d2fc7f581101261f59708eaf7a8ad5272a56cb (diff) | |
Improved arm64 chip detection
Use ARMv8 Main ID Register (exposed thru /proc/cpuinfo) to identify
the CPU implementor and part number. For further details, see the
ARMv8 ARM D7.2.66.
Change-Id: I2b0d0b165cda4ab9fc57c645af90e9e354b73f44
Signed-off-by: Brian Brooks <brian.brooks@arm.com>
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Ola Liljedahl <ola.liljedahl@arm.com>
Reviewed-by: Song Zhu <song.zhu@arm.com>
| -rw-r--r-- | dpdk/Makefile | 57 |
1 files changed, 46 insertions, 11 deletions
diff --git a/dpdk/Makefile b/dpdk/Makefile index 4d8dea28..afe50c4b 100644 --- a/dpdk/Makefile +++ b/dpdk/Makefile @@ -75,29 +75,64 @@ ifeq ($(MACHINE),$(filter $(MACHINE),x86_64 i686)) DPDK_TARGET ?= $(MACHINE)-native-linuxapp-$(DPDK_CC) DPDK_MACHINE ?= nhm DPDK_TUNE ?= core-avx2 + +############################################################################## +# ARM64 +############################################################################## else ifeq ($(MACHINE),aarch64) export CROSS="" -ifneq (,$(findstring thunder,$(shell [[ -f /sys/bus/pci/devices/0000:00:01.0/uevent ]] && cat /sys/bus/pci/devices/0000:00:01.0/uevent | grep cavium))) +DPDK_TARGET ?= arm64-armv8a-linuxapp-$(DPDK_CC) +DPDK_MACHINE ?= armv8a +DPDK_TUNE ?= generic + +CPU_IMP_ARM = 0x41 +CPU_IMP_CAVIUM = 0x43 + +CPU_PART_ARM_CORTEX_A53 = 0xd03 +CPU_PART_ARM_CORTEX_A57 = 0xd07 +CPU_PART_ARM_CORTEX_A72 = 0xd08 +CPU_PART_ARM_CORTEX_A73 = 0xd09 + +CPU_PART_CAVIUM_THUNDERX = 0x0a1 +CPU_PART_CAVIUM_THUNDERX_81XX = 0x0a2 +CPU_PART_CAVIUM_THUNDERX_83XX = 0x0a3 + +MIDR_IMPLEMENTER=$(shell awk '/implementer/ {print $$4;exit}' /proc/cpuinfo) +MIDR_PARTNUM=$(shell awk '/part/ {print $$4;exit}' /proc/cpuinfo) + +ifeq ($(MIDR_IMPLEMENTER),$(CPU_IMP_ARM)) ############################################################################## -# Cavium ThunderX +# Arm Cortex ############################################################################## -DPDK_TARGET ?= arm64-thunderx-linuxapp-$(DPDK_CC) -DPDK_MACHINE ?= thunderx -DPDK_TUNE ?= generic +CPU_PART_ARM_TUNE := $(CPU_PART_ARM_CORTEX_A53)/cortex-a53 \ + $(CPU_PART_ARM_CORTEX_A57)/cortex-a57 \ + $(CPU_PART_ARM_CORTEX_A72)/cortex-a72 \ + $(CPU_PART_ARM_CORTEX_A73)/cortex-a73 +CPU_TUNE = $(notdir $(filter $(MIDR_PARTNUM)/%,$(CPU_PART_ARM_TUNE))) +ifneq ($(CPU_TUNE),) +DPDK_TUNE = $(CPU_TUNE) else +$(warning Unknown Arm CPU) +endif + +else ifeq ($(MIDR_IMPLEMENTER),$(CPU_IMP_CAVIUM)) ############################################################################## -# Generic ARM64 +# Cavium ThunderX ############################################################################## -DPDK_TARGET ?= arm64-armv8a-linuxapp-$(DPDK_CC) -DPDK_MACHINE ?= armv8a -DPDK_TUNE ?= generic +ifneq (,$(findstring $(MIDR_PARTNUM),$(CPU_PART_CAVIUM_THUNDERX) \ + $(CPU_PART_CAVIUM_THUNDERX_81XX) $(CPU_PART_CAVIUM_THUNDERX_83XX))) +DPDK_TARGET = arm64-thunderx-linuxapp-$(DPDK_CC) +DPDK_MACHINE = thunderx +else +$(warning Unknown Cavium CPU) +endif endif ############################################################################## -# Unknown platofrm +# Unknown platform ############################################################################## else -$(error unknown platform) +$(error Unknown platform) endif # /proc/cpuinfo does not exist on platforms without a /proc and on some |