Lines Matching refs:extension

574 	bool "Supm extension for userspace pointer masking"
579 	  underlying hardware extension (Smnpm or Ssnpm) is detected at boot.
585 	bool "Svnapot extension support for supervisor mode NAPOT pages"
590 	  Allow kernel to detect the Svnapot ISA-extension dynamically at boot
593 	  The Svnapot extension is used to mark contiguous PTEs as a range
599 	  the Svnapot extension, it may be better to say N here.
604 	bool "Svpbmt extension support for supervisor mode page-based memory types"
610 	   ISA-extension (Supervisor-mode: page-based memory types) and
617 	   The Svpbmt extension is only available on 64-bit cpus.
630 	bool "VECTOR extension support"
675 	bool "Zawrs extension support for more efficient busy waiting"
679 	  The Zawrs extension defines instructions to be used in polling loops
682 	  use of these instructions in the kernel when the Zawrs extension is
693 	bool "Zabha extension support for atomic byte/halfword operations"
698 	  Enable the use of the Zabha ISA-extension to implement kernel
711 	bool "Zacas extension support for atomic CAS"
716 	  Enable the use of the Zacas ISA-extension to implement kernel atomic
737 	bool "Zba extension support for bit manipulation instructions"
741 	   extension is detected at boot.
743 	   The Zba extension provides instructions to accelerate the generation
749 	bool "Zbb extension support for bit manipulation instructions"
755 	   extension (basic bit manipulation) and enable its usage.
757 	   The Zbb extension provides instructions to accelerate a number
772 	bool "Zbc extension support for carry-less multiplication instructions"
779 	   extension (carry-less multiplication) and enable its usage.
781 	   The Zbc extension could accelerate CRC (cyclic redundancy check)
787 	bool "Zicbom extension support for non-coherent DMA operation"
795 	   extension (Cache Block Management Operations) and enable its
798 	   The Zicbom extension can be used to handle for example
804 	bool "Zicboz extension support for faster zeroing of memory"
808 	   Enable the use of the Zicboz extension (cbo.zero instruction)
811 	   The Zicboz extension is used for faster zeroing of memory.
822 	  20191213 version, which moves some instructions from the I extension to
1006 	  on older firmware without SBI HSM extension. All other platforms should
1007 	  rely on ordered booting via SBI HSM extension which gets chosen
1252 	bool "Permit falling back to parsing riscv,isa for extension support by default"