From: Dave Hansen <dave.hansen@intel.com>
To: "Chang S. Bae" <chang.seok.bae@intel.com>, linux-kernel@vger.kernel.org
Cc: x86@kernel.org, platform-driver-x86@vger.kernel.org,
tglx@linutronix.de, 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
Subject: Re: [PATCH v2 1/2] x86/fpu: Extend kernel_fpu_begin_mask() to initialize AMX state
Date: Thu, 9 May 2024 10:41:27 -0700 [thread overview]
Message-ID: <a19a7713-7211-4952-b36e-a296794079d1@intel.com> (raw)
In-Reply-To: <fde6149c-7ddf-488f-98c0-04f336b7092e@intel.com>
On 5/9/24 10:36, Dave Hansen wrote:
> + restore_fpregs_from_fpstate(&init_fpstate,
> + fpu_user_cfg.max_features);
There is *one* subtlety here. This assumes that 'init_fpstate' has AMX
marked as being in its init state. But I think that's a pretty safe
assumption.
next prev parent reply other threads:[~2024-05-09 17:41 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
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 [this message]
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
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