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

[Jerin Jacob Kollanukkaran]

> -----Original Message-----
> From: Yongseok Koh <yskoh at mellanox.com>
> Sent: Saturday, April 13, 2019 4:55 AM
> To: bruce.richardson at intel.com; Jerin Jacob Kollanukkaran
> <jerinj at marvell.com>; Pavan Nikhilesh Bhagavatula
> <pbhagavatula at marvell.com>; shahafs at mellanox.com
> Cc: dev at dpdk.org; thomas at monjalon.net; gavin.hu at arm.com;
> Honnappa.Nagarahalli at arm.com
> Subject: [EXT] [PATCH 2/6] meson: change default cache line size for cortex-a72
> 
> ----------------------------------------------------------------------
> Per the email discussion [1], the default cache line size of armv8
> cortex-a72 is changed to 64 bytes.

IMO, In git commit you remove the reference to specific discussion and
Update the reason correctly.


> 
> [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']]]

I think, flags_cortex_a72_extra() can be changed to flags_vendor_arm_extra or something similar
And update the following CPUs also not just cortex-a72.

	['0xd03', ['-mcpu=cortex-a53']],
	['0xd04', ['-mcpu=cortex-a35']],
	['0xd05', ['-mcpu=cortex-a55']],
	['0xd07', ['-mcpu=cortex-a57']],
	['0xd08', ['-mcpu=cortex-a72']],
	['0xd09', ['-mcpu=cortex-a73']],
	['0xd0a', ['-mcpu=cortex-a75']],
	['0xd0b', ['-mcpu=cortex-a76']],


> 
> --
> 2.21.0.196.g041f5ea