[PATCH] config/arm: support crypto in cortex-a78ae mcpu

[PATCH] config/arm: support crypto in cortex-a78ae mcpu

[Shani Peretz]

ARM cortex-a78ae configuration (part number 0xd42) is being built
without the necessary crypto extensions. This results in infinite
loops in the crypto performance tests applications because the
hardware crypto features are not properly enabled.
This fix enables the crypto extension in the mcpu definition.

Fixes: c02c01dbf907 ("config/arm: prefer strict use of -mcpu if supported")
Cc: wathsala.vithanage@arm.com
Cc: stable@dpdk.org

Signed-off-by: Shani Peretz <shperetz@nvidia.com>
---
 config/arm/meson.build | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/config/arm/meson.build b/config/arm/meson.build
index 35b7553e74..82661b7cfe 100644
--- a/config/arm/meson.build
+++ b/config/arm/meson.build
@@ -84,8 +84,7 @@ part_number_config_arm = {
         ]
     },
     '0xd42': {
-        'march': 'armv8.4-a',
-        'mcpu' : 'cortex-a78ae',
+        'mcpu' : 'mcpu_cortex-a78ae',
         'flags': [
             ['RTE_MAX_LCORE', 16],
             ['RTE_MAX_NUMA_NODES', 1]
@@ -689,6 +688,10 @@ mcpu_defs = {
         'march': 'armv8-a',
         'march_extensions': ['simd'],
     },
+    'mcpu_cortex-a78ae': {
+        'march': 'armv8.4-a',
+        'march_extensions': ['crypto']
+    }
 }
 
 '''
-- 
2.34.1

RE: [PATCH] config/arm: support crypto in cortex-a78ae mcpu

[Wathsala Vithanage]

Reviewed-by: Wathsala Vithanage <wathsala.vithanage@arm.com>

> -----Original Message-----
> From: Shani Peretz <shperetz@nvidia.com>
> Sent: Tuesday, August 5, 2025 1:23 AM
> To: dev@dpdk.org
> Cc: getelson@nvidia.com; bingz@nvidia.com; Shani Peretz
> <shperetz@nvidia.com>; Wathsala Vithanage <wathsala.vithanage@arm.com>;
> stable@dpdk.org; Bruce Richardson <bruce.richardson@intel.com>; Dhruv
> Tripathi <Dhruv.Tripathi@arm.com>
> Subject: [PATCH] config/arm: support crypto in cortex-a78ae mcpu
> 
> ARM cortex-a78ae configuration (part number 0xd42) is being built without the
> necessary crypto extensions. This results in infinite loops in the crypto
> performance tests applications because the hardware crypto features are not
> properly enabled.
> This fix enables the crypto extension in the mcpu definition.
> 
> Fixes: c02c01dbf907 ("config/arm: prefer strict use of -mcpu if supported")
> Cc: wathsala.vithanage@arm.com
> Cc: stable@dpdk.org
> 
> Signed-off-by: Shani Peretz <shperetz@nvidia.com>
> ---
>  config/arm/meson.build | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/config/arm/meson.build b/config/arm/meson.build index
> 35b7553e74..82661b7cfe 100644
> --- a/config/arm/meson.build
> +++ b/config/arm/meson.build
> @@ -84,8 +84,7 @@ part_number_config_arm = {
>          ]
>      },
>      '0xd42': {
> -        'march': 'armv8.4-a',
> -        'mcpu' : 'cortex-a78ae',
> +        'mcpu' : 'mcpu_cortex-a78ae',
>          'flags': [
>              ['RTE_MAX_LCORE', 16],
>              ['RTE_MAX_NUMA_NODES', 1]
> @@ -689,6 +688,10 @@ mcpu_defs = {
>          'march': 'armv8-a',
>          'march_extensions': ['simd'],
>      },
> +    'mcpu_cortex-a78ae': {
> +        'march': 'armv8.4-a',
> +        'march_extensions': ['crypto']
> +    }
>  }
> 
>  '''
> --
> 2.34.1