[PATCH v3 1/2] config/arm: allow WFE to be enabled config time

[pbhagavatula at marvell.com]

From: Pavan Nikhilesh <pbhagavatula at marvell.com>

Allow RTE_ARM_USE_WFE to be enabled at meson configuration
time by passing it via c_args instead of modifying
`config/arm/meson.build`.

Example usage:
 meson build -Dc_args='-DRTE_ARM_USE_WFE' \
	--cross-file config/arm/arm64_cn10k_linux_gcc

Signed-off-by: Pavan Nikhilesh <pbhagavatula at marvell.com>
---
 v3 Changes:
 - Comment the meson option instead of removing it.

 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 36f21d2259..89e1de312b 100644
--- a/config/arm/meson.build
+++ b/config/arm/meson.build
@@ -17,7 +17,9 @@ flags_common = [
         #    ['RTE_ARM64_MEMCPY_ALIGN_MASK', 0xF],
         #    ['RTE_ARM64_MEMCPY_STRICT_ALIGN', false],

-        ['RTE_ARM_USE_WFE', false],
+        # Enable use of ARM wait for event instruction.
+        # ['RTE_ARM_USE_WFE', false],
+
         ['RTE_ARCH_ARM64', true],
         ['RTE_CACHE_LINE_SIZE', 128]
 ]
--
2.25.1