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From: "Chang S. Bae" <chang.seok.bae@intel.com>
To: linux-kernel@vger.kernel.org, x86@kernel.org, linux-pm@vger.kernel.org
Cc: tglx@linutronix.de, dave.hansen@linux.intel.com,
	peterz@infradead.org, bp@alien8.de, rafael@kernel.org,
	ravi.v.shankar@intel.com, chang.seok.bae@intel.com
Subject: [PATCH v3 0/3] x86/fpu: Make AMX state ready for CPU idle
Date: Thu, 24 Mar 2022 19:22:16 -0700	[thread overview]
Message-ID: <20220325022219.829-1-chang.seok.bae@intel.com> (raw)

Changes from v2 [1]:
* Secure XCR0 accessors from the compiler reordering issue (Dave Hansen).
* Check the feature flag instead of fpu_state_size_dynamic() (Dave Hansen).
* Remove the meaningless backslash (Rafael Wysocki).

Note the two changes this series wants are now in the mainline:
* the opcode for TILERELEASE [2] and
* the C-state table for Sapphire Rapids [3]

The series on top of the above is available here:
  git://github.com/intel/amx-linux.git tilerelease

Thanks,
Chang

[1]: https://lore.kernel.org/lkml/20220309223431.26560-1-chang.seok.bae@intel.com/
[2]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/arch?id=9dd94df75b30eca03ed2151dd5bbc152a6f19abf
[3]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/arch?id=9edf3c0ffef0ec1bed8300315852b5c6a0997130

Chang S. Bae (3):
  x86/fpu: Make XCR0 accessors immune to unwanted compiler reordering
  x86/fpu: Add a helper to prepare AMX state for low-power CPU idle
  intel_idle: Add a new flag to initialize the AMX state

 arch/x86/include/asm/fpu/api.h       |  2 ++
 arch/x86/include/asm/fpu/xcr.h       |  8 ++++++--
 arch/x86/include/asm/special_insns.h |  9 +++++++++
 arch/x86/kernel/fpu/core.c           | 13 +++++++++++++
 drivers/idle/intel_idle.c            | 18 ++++++++++++++++--
 5 files changed, 46 insertions(+), 4 deletions(-)

-- 
2.17.1


             reply	other threads:[~2022-03-25  2:30 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-25  2:22 Chang S. Bae [this message]
2022-03-25  2:22 ` [PATCH v3 1/3] x86/fpu: Make XCR0 accessors immune to unwanted compiler reordering Chang S. Bae
2022-04-01 17:58   ` Dave Hansen
2022-04-01 18:16     ` Dave Hansen
2022-04-01 22:14       ` Chang S. Bae
2022-03-25  2:22 ` [PATCH v3 2/3] x86/fpu: Add a helper to prepare AMX state for low-power CPU idle Chang S. Bae
2022-04-03 16:37   ` Thomas Gleixner
2022-04-05  0:24     ` Chang S. Bae
2022-03-25  2:22 ` [PATCH v3 3/3] intel_idle: Add a new flag to initialize the AMX state Chang S. Bae
2022-03-29 17:42   ` Rafael J. Wysocki

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