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| author |   Dave Barach <dave@barachs.net> | 2018-05-29 17:06:45 -0400 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2018-06-04 22:24:48 +0000 |
| commit | 473f46135c3fd77dad5614215cc279b1164e9a74 (patch) | |
| tree | c77881bd8157ce9380d91e94b43463f6c9f712a0 /dpdk | |
| parent | 1b25552ebb8f653d473bd58a3bf56499701c792d (diff) | |
Configure or deduce CLIB_LOG2_CACHE_LINE_BYTES (VPP-1064)
Added configure argument "--with-log2-cache-line-bytes=5|6|7|auto"
AKA 32, 64, or 128 bytes, or use the inferred value from the build host.
produces build-xxx/vpp/vppinfra/config.h, which .../src/vppinfra/cache.h
Kernels which implement the following pseudo-file (aka x86_64) are
easy: /sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size
Otherwise, extract the cpuid from /proc/cpuinfo and map it to the
cache line size.
Change-Id: I7ff861e042faf82c3901fa1db98864fbdea95b74
Signed-off-by: Dave Barach <dave@barachs.net>
Signed-off-by: Nitin Saxena <nitin.saxena@cavium.com>
Diffstat (limited to 'dpdk')
| -rw-r--r-- | dpdk/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/dpdk/Makefile b/dpdk/Makefile index 331e1c34886..7b70346260c 100644 --- a/dpdk/Makefile +++ b/dpdk/Makefile @@ -124,6 +124,7 @@ 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 +DPDK_CACHE_LINE_SIZE := 128 else $(warning Unknown Cavium CPU) endif |