linux-kernel - [PATCH v3 0/3] x86/fpu: Allow the In-Field Scan driver to initialize FPU state

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Date: Thu, 30 May 2024 12:27:36 -0700
From: "Chang S. Bae" <chang.seok.bae@...el.com>
To: linux-kernel@...r.kernel.org
Cc: x86@...nel.org,
	platform-driver-x86@...r.kernel.org,
	tglx@...utronix.de,
	mingo@...hat.com,
	bp@...en8.de,
	dave.hansen@...ux.intel.com,
	hdegoede@...hat.com,
	ilpo.jarvinen@...ux.intel.com,
	tony.luck@...el.com,
	ashok.raj@...el.com,
	jithu.joseph@...el.com,
	sathyanarayanan.kuppuswamy@...ux.intel.com,
	chang.seok.bae@...el.com
Subject: [PATCH v3 0/3] x86/fpu: Allow the In-Field Scan driver to initialize FPU state

This revision switches to a new approach by providing a helper to
initialize user FPU states for the driver, which is considerably simpler.
This approach could serve as an example for addressing similar situations
from a non-critical path.

I thought fpu_reset_fpregs() as the helper name. There is already one
with this name. Then, I realized the existing one is a bit misaligned, so
renamed it first here.

Thanks to Dave for the reviews and the suggestion.

Thanks,
Chang

The previous postings:
V2: https://lore.kernel.org/all/20240507235344.249103-1-chang.seok.bae@intel.com
V1: https://lore.kernel.org/all/20240430212508.105117-1-chang.seok.bae@intel.com

Chang S. Bae (3):
  x86/fpu: Rename fpu_reset_fpregs() to fpu_reset_fpstate_regs()
  x86/fpu: Allow FPU users to initialize FPU state
  platform/x86/intel/ifs: Initialize FPU states for the scan test

 arch/x86/include/asm/fpu/api.h           |  2 ++
 arch/x86/kernel/fpu/core.c               | 17 ++++++++++++++---
 drivers/platform/x86/intel/ifs/ifs.h     |  1 +
 drivers/platform/x86/intel/ifs/runtest.c |  7 +++++++
 4 files changed, 24 insertions(+), 3 deletions(-)

base-commit: 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0
-- 
2.34.1