From: Thomas Gleixner <tglx@linutronix.de>
To: "Chang S. Bae" <chang.seok.bae@intel.com>, linux-kernel@vger.kernel.org
Cc: x86@kernel.org, platform-driver-x86@vger.kernel.org,
mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com,
hdegoede@redhat.com, ilpo.jarvinen@linux.intel.com,
tony.luck@intel.com, ashok.raj@intel.com, jithu.joseph@intel.com,
chang.seok.bae@intel.com
Subject: Re: [PATCH v2 1/2] x86/fpu: Extend kernel_fpu_begin_mask() to initialize AMX state
Date: Wed, 08 May 2024 15:00:18 +0200 [thread overview]
Message-ID: <87y18ko3vh.ffs@tglx> (raw)
In-Reply-To: <20240507235344.249103-2-chang.seok.bae@intel.com>
On Tue, May 07 2024 at 16:53, Chang S. Bae wrote:
> diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c
> index 1209c7aebb21..04cc6f14ca42 100644
> --- a/arch/x86/kernel/fpu/core.c
> +++ b/arch/x86/kernel/fpu/core.c
> @@ -440,6 +440,9 @@ void kernel_fpu_begin_mask(unsigned int kfpu_mask)
>
> if (unlikely(kfpu_mask & KFPU_387) && boot_cpu_has(X86_FEATURE_FPU))
> asm volatile ("fninit");
> +
> + if (unlikely(kfpu_mask & KFPU_AMX) && boot_cpu_has(X86_FEATURE_AMX_TILE))
cpu_feature_enabled() please
> + restore_fpregs_from_fpstate(&init_fpstate, XFEATURE_MASK_XTILE);
> }
> EXPORT_SYMBOL_GPL(kernel_fpu_begin_mask);
next prev parent reply other threads:[~2024-05-08 13:00 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-30 21:25 [PATCH 0/2] x86/fpu: Extend kernel_fpu_begin_mask() for the In-Field Scan driver Chang S. Bae
2024-04-30 21:25 ` [PATCH 1/2] x86/fpu: Extend kernel_fpu_begin_mask() to initialize AMX state Chang S. Bae
2024-04-30 23:42 ` Ashok Raj
2024-04-30 21:25 ` [PATCH 2/2] platform/x86/intel/ifs: Initialize AMX state for the scan test Chang S. Bae
2024-05-01 0:06 ` Ashok Raj
2024-05-01 8:58 ` Hans de Goede
2024-05-08 0:22 ` Chang S. Bae
2024-05-02 11:00 ` Ilpo Järvinen
2024-05-02 22:19 ` Chang S. Bae
2024-05-09 0:45 ` Kuppuswamy Sathyanarayanan
2024-05-02 20:52 ` [PATCH 0/2] x86/fpu: Extend kernel_fpu_begin_mask() for the In-Field Scan driver Chang S. Bae
2024-05-02 21:35 ` Chang S. Bae
2024-05-02 20:59 ` Dave Hansen
2024-05-07 23:53 ` [PATCH v2 " Chang S. Bae
2024-05-07 23:53 ` [PATCH v2 1/2] x86/fpu: Extend kernel_fpu_begin_mask() to initialize AMX state Chang S. Bae
2024-05-08 13:00 ` Thomas Gleixner [this message]
2024-05-08 14:40 ` Dave Hansen
2024-05-08 18:03 ` Chang S. Bae
2024-05-08 19:11 ` Dave Hansen
2024-05-09 0:29 ` Chang S. Bae
2024-05-09 17:36 ` Dave Hansen
2024-05-09 17:41 ` Dave Hansen
2024-05-09 18:41 ` Chang S. Bae
2024-05-09 18:50 ` Dave Hansen
2024-05-10 7:51 ` Thomas Gleixner
2024-05-07 23:53 ` [PATCH v2 2/2] platform/x86/intel/ifs: Initialize AMX state for the scan test Chang S. Bae
2024-05-08 0:19 ` Ashok Raj
2024-05-08 0:21 ` Chang S. Bae
2024-05-08 8:28 ` [PATCH v2 0/2] x86/fpu: Extend kernel_fpu_begin_mask() for the In-Field Scan driver Ilpo Järvinen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87y18ko3vh.ffs@tglx \
--to=tglx@linutronix.de \
--cc=ashok.raj@intel.com \
--cc=bp@alien8.de \
--cc=chang.seok.bae@intel.com \
--cc=dave.hansen@linux.intel.com \
--cc=hdegoede@redhat.com \
--cc=ilpo.jarvinen@linux.intel.com \
--cc=jithu.joseph@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=platform-driver-x86@vger.kernel.org \
--cc=tony.luck@intel.com \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox