[dpdk-dev] [PATCH 2/6] meson: change default cache line size for cortex-a72

Yongseok Koh yskoh at mellanox.com
Sat Apr 13 01:24:47 CEST 2019


Per the email discussion [1], the default cache line size of armv8
cortex-a72 is changed to 64 bytes.

[1] https://mails.dpdk.org/archives/dev/2019-January/123218.html

Signed-off-by: Yongseok Koh <yskoh at mellanox.com>
---
 config/arm/meson.build | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/config/arm/meson.build b/config/arm/meson.build
index e00b894523..73c581948c 100644
--- a/config/arm/meson.build
+++ b/config/arm/meson.build
@@ -51,6 +51,8 @@ flags_dpaa2 = [
 	['RTE_MAX_LCORE', 16],
 	['RTE_LIBRTE_DPAA2_USE_PHYS_IOVA', false]]
 flags_default_extra = []
+flags_cortex_a72_extra = [
+	['RTE_CACHE_LINE_SIZE', 64]]
 flags_thunderx_extra = [
 	['RTE_MACHINE', '"thunderx"'],
 	['RTE_USE_C11_MEM_MODEL', false]]
@@ -73,7 +75,7 @@ machine_args_generic = [
 	['0xd03', ['-mcpu=cortex-a53']],
 	['0xd04', ['-mcpu=cortex-a35']],
 	['0xd07', ['-mcpu=cortex-a57']],
-	['0xd08', ['-mcpu=cortex-a72']],
+	['0xd08', ['-mcpu=cortex-a72'], flags_cortex_a72_extra],
 	['0xd09', ['-mcpu=cortex-a73']],
 	['0xd0a', ['-mcpu=cortex-a75']]]
 
-- 
2.21.0.196.g041f5ea



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