Messages in this thread | | | From | "Chang S. Bae" <> | Subject | [PATCH v3 0/3] x86/fpu: Make AMX state ready for CPU idle | Date | Thu, 24 Mar 2022 19:22:16 -0700 |
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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
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