Lines Matching refs:extension
535 bool "Svnapot extension support for supervisor mode NAPOT pages"
540 Allow kernel to detect the Svnapot ISA-extension dynamically at boot
543 The Svnapot extension is used to mark contiguous PTEs as a range
549 the Svnapot extension, it may be better to say N here.
554 bool "Svpbmt extension support for supervisor mode page-based memory types"
560 ISA-extension (Supervisor-mode: page-based memory types) and
567 The Svpbmt extension is only available on 64-bit cpus.
580 bool "VECTOR extension support"
625 bool "Zawrs extension support for more efficient busy waiting"
629 The Zawrs extension defines instructions to be used in polling loops
632 use of these instructions in the kernel when the Zawrs extension is
653 bool "Zba extension support for bit manipulation instructions"
657 extension is detected at boot.
659 The Zba extension provides instructions to accelerate the generation
665 bool "Zbb extension support for bit manipulation instructions"
671 extension (basic bit manipulation) and enable its usage.
673 The Zbb extension provides instructions to accelerate a number
688 bool "Zbc extension support for carry-less multiplication instructions"
695 extension (carry-less multiplication) and enable its usage.
697 The Zbc extension could accelerate CRC (cyclic redundancy check)
703 bool "Zicbom extension support for non-coherent DMA operation"
711 extension (Cache Block Management Operations) and enable its
714 The Zicbom extension can be used to handle for example
720 bool "Zicboz extension support for faster zeroing of memory"
724 Enable the use of the Zicboz extension (cbo.zero instruction)
727 The Zicboz extension is used for faster zeroing of memory.
738 20191213 version, which moves some instructions from the I extension to
868 on older firmware without SBI HSM extension. All other platforms should
869 rely on ordered booting via SBI HSM extension which gets chosen
1114 bool "Permit falling back to parsing riscv,isa for extension support by default"