From: Ruifeng Wang <Ruifeng.Wang@arm.com>
To: pbhagavatula@marvell.com, jerinj@marvell.com,
Bruce Richardson <bruce.richardson@intel.com>
Cc: dev@dpdk.org, nd@arm.com
Subject: Re: [PATCH 2/2] config/arm: add armv9-a march
Date: Thu, 18 Jan 2024 10:19:12 +0800 [thread overview]
Message-ID: <a85cc799-d9b2-4473-87b6-7a46fe0f0920@arm.com> (raw)
In-Reply-To: <20240104091830.3245-2-pbhagavatula@marvell.com>
On 2024/1/4 5:18 PM, pbhagavatula@marvell.com wrote:
> From: Pavan Nikhilesh <pbhagavatula@marvell.com>
>
> Now that major versions of GCC recognize armv9-a march option,
> add it to the list of supported march.
> Update neoverse-n2 part number to include march as armv9-a.
>
> Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
> ---
> config/arm/meson.build | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/config/arm/meson.build b/config/arm/meson.build
> index 36f21d2259..0804877b57 100644
> --- a/config/arm/meson.build
> +++ b/config/arm/meson.build
> @@ -92,6 +92,7 @@ part_number_config_arm = {
> 'march': 'armv8.4-a',
> },
> '0xd49': {
> + 'march': 'armv9-a',
> 'march_features': ['sve2'],
> 'compiler_options': ['-mcpu=neoverse-n2'],
> 'flags': [
> @@ -701,7 +702,7 @@ if update_flags
> if part_number_config.get('force_march', false)
> candidate_march = part_number_config['march']
> else
> - supported_marchs = ['armv8.6-a', 'armv8.5-a', 'armv8.4-a', 'armv8.3-a',
> + supported_marchs = ['armv9-a', 'armv8.6-a', 'armv8.5-a', 'armv8.4-a', 'armv8.3-a',
armv9.x-a have some overlap with armv8.x-a.
For armv9.0, the next candidate fallback should be armv8.4-a instead of
armv8.6-a.
armv9 should be treated differently for fallback support.
> 'armv8.2-a', 'armv8.1-a', 'armv8-a']
> check_compiler_support = false
> foreach supported_march: supported_marchs
next prev parent reply other threads:[~2024-01-18 2:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-04 9:18 [PATCH 1/2] config/arm: fix CN10K minimum march requirement pbhagavatula
2024-01-04 9:18 ` [PATCH 2/2] config/arm: add armv9-a march pbhagavatula
2024-01-18 2:19 ` Ruifeng Wang [this message]
2024-01-20 7:09 ` [EXT] " Pavan Nikhilesh Bhagavatula
2024-01-18 2:02 ` [PATCH 1/2] config/arm: fix CN10K minimum march requirement Ruifeng Wang
2024-01-19 19:42 ` [EXT] " Pavan Nikhilesh Bhagavatula
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