Kconfig - OpenGrok cross reference for /openbmc/linux/arch/loongarch/Kconfig

1 # SPDX-License-Identifier: GPL-2.0
214 # MIPS Loongson code, to preserve Loongson-specific code paths in drivers that
246 	default 3 if PGTABLE_3LEVEL
254 	def_bool $(as-instr,x:pcalau12i \$t0$(comma)%pc_hi20(x))
257 	def_bool $(as-instr,movfcsr2gr \$t0$(comma)\$fcsr0)
260 	def_bool $(as-instr,vld \$vr0$(comma)\$a0$(comma)0)
263 	def_bool $(as-instr,xvld \$xr0$(comma)\$a0$(comma)0)
266 	def_bool $(as-instr,movscr2gr \$a0$(comma)\$scr0)
282 	bool "4KB with 3 levels"
286 	  This option selects 4KB page size with 3 level page tables, which
306 	bool "16KB with 3 levels"
310 	  This option selects 16KB page size with 3 level page tables, which
322 	bool "64KB with 3 levels"
326 	  This option selects 64KB page size with 3 level page tables, which
332 	string "Built-in kernel command line"
335 	  are provided at run-time, during boot. However, there are cases
339 	  When that occurs, it is possible to define a built-in command
346 	  Choose how the kernel will handle the provided built-in command
352 	  Prefer the command-line passed by the boot loader if available.
353 	  Use the built-in command line as fallback in case we get nothing
357 	bool "Use built-in to extend bootloader kernel arguments"
359 	  The command-line arguments provided during boot will be
360 	  appended to the built-in command line. This is useful in
365 	bool "Always use the built-in kernel command string"
367 	  Always use the built-in command line, even if we get one during
407 	bool "Multi-Processing support"
413 	  If you say N here, the kernel will run on uni- and multiprocessor
419 	  See also the SMP-HOWTO available at <http://www.tldp.org/docs.html#howto>.
424 	bool "Support for hot-pluggable CPUs"
435 	int "Maximum number of CPUs (2-256)"
448 	  Say Y to compile the kernel with NUMA (Non-Uniform Memory Access)
475 	bool "Enable LoongArch DMW-based ioremap()"
477 	  We use generic TLB-based ioremap() by default since it has page
478 	  protection support. However, you can enable LoongArch DMW-based
485 	  with LS7A chipsets the WUC attribute (Weak-ordered UnCached, which
490 	  This means WUC can only used for write-only memory regions now, so
498 	bool "Enable -mstrict-align to prevent unaligned accesses" if EXPERT
502 	  -mstrict-align build parameter to prevent unaligned accesses.
505 	  Loongson-2K2000/2K3000/3A5000/3C5000/3D5000.
508 	  Loongson-2K500/2K1000.
520 	bool "Support for the Loongson SIMD Extension"
523 	  Loongson SIMD Extension (LSX) introduces 128 bit wide vector registers
534 	bool "Support for the Loongson Advanced SIMD Extension"
538 	  Loongson Advanced SIMD Extension (LASX) introduces 256 bit wide vector
549 	bool "Support for the Loongson Binary Translation Extension"
552 	  Loongson Binary Translation (LBT) introduces 4 scratch registers (SCR0
557 	  If you want to use this feature, such as the Loongson Architecture
622 	  for architectures which are either NUMA (Non-Uniform Memory Access)