Lines Matching +full:non +full:- +full:default
1 # SPDX-License-Identifier: GPL-2.0-only
4 # see Documentation/kbuild/kconfig-language.rst.
70 # LLD >= 14: https://github.com/llvm/llvm-project/issues/50505
228 # -Zsanitizer=shadow-call-stack flag.
238 depends on $(cc-option,-fpatchable-function-entry=8)
241 def_bool $(cc-option,-fsanitize=shadow-call-stack)
242 …# https://github.com/riscv-non-isa/riscv-elf-psabi-doc/commit/a484e843e6eeb51f0cb7b8819e50da6d2444…
243 depends on $(ld-option,--no-relax-gp)
247 # https://github.com/llvm/llvm-project/commit/6611d58f5bbcbec77262d392e2923e1d680f6985
250 # https://github.com/llvm/llvm-project/commit/bbc0f99f3bc96f1db16f649fc21dd18e5b0918f6
254 # https://github.com/llvm/llvm-project/commit/1df5ea29b43690b6622db2cad7b745607ca4de6a
256 # https://github.com/llvm/llvm-project/commit/7ffabb61a5569444b5ac9322e22e5471cc5e4a77
260 default 18 if 64BIT
261 default 8
264 default 8
267 # VA_BITS - PAGE_SHIFT - 3
269 default 24 if 64BIT # SV39 based
270 default 17
273 default 17
279 default y
281 Select this option if you want to run the kernel in M-mode,
284 # set if we are running in S-mode and can use SBI calls
288 default y
291 bool "MMU-based Paged Memory Management Support"
292 default y
294 Select if you want MMU-based virtualised addressing space
300 default 0xdfffffff00000000 if 64BIT
301 default 0xffffffff if 32BIT
343 default 0 if 32BIT
344 default 0xdead000000000000 if 64BIT
348 default 5 if 64BIT
349 default 2
365 This enables function pointer support for non-standard noncoherent
369 def_bool $(as-instr,.insn r 51$(comma) 0$(comma) 0$(comma) t0$(comma) t0$(comma) zero)
372 # https://github.com/llvm/llvm-project/commit/9e8ed3403c191ab9c4903e8eeb8f732ff8a43cb4
374 depends on $(as-instr, .option arch$(comma) +m)
382 bool "Allow configurations that result in non-portable kernels"
384 RISC-V kernel binaries are compatible between all known systems
398 default ARCH_RV64I
425 default CMODEL_MEDLOW if 32BIT
426 default CMODEL_MEDANY if 64BIT
439 bool "Symmetric Multi-Processing"
452 bool "Multi-core scheduler support"
455 Multi-core scheduler support improves the CPU scheduler's decision
456 making when dealing with multi-core CPU chips at a cost of slightly
460 int "Maximum number of CPUs (2-512)"
465 default "32" if 32BIT
466 default "64" if 64BIT
469 bool "Support for hot-pluggable CPUs"
481 default TUNE_GENERIC
500 Enable NUMA (Non-Uniform Memory Access) support.
508 default "2"
515 prompt "RISC-V spinlock type"
516 default RISCV_COMBO_SPINLOCKS
564 default y
576 default y
588 default y
590 Enable support for the Svnapot ISA-extension when it is detected
594 of contiguous virtual-to-physical translations for a naturally
595 aligned power-of-2 (NAPOT) granularity larger than the base 4KB page
604 bool "Svpbmt extension support for supervisor mode page-based memory types"
607 default y
609 Add support for the Svpbmt ISA-extension (Supervisor-mode:
610 page-based memory types) in the kernel when it is detected at boot.
616 The Svpbmt extension is only available on 64-bit cpus.
622 default y
623 depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64imv)
624 depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32imv)
633 default y
642 bool "Enable userspace Vector by default"
644 default y
646 Say Y here if you want to enable Vector in userspace by default.
655 default 768
661 bool "Run kernel-mode Vector with kernel preemption"
664 default y
666 Usually, in-kernel SIMD routines are run with preemption disabled.
672 consumption due to the allocation of per-task's kernel Vector context.
677 default y
680 which allow a hart to enter a low-power state or to trap to the
687 default y
688 depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zabha)
689 depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zabha)
696 default y
698 Enable the use of the Zabha ISA-extension to implement kernel
705 default y
706 depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zacas)
707 depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zacas)
714 default y
716 Enable the use of the Zacas ISA-extension to implement kernel atomic
723 default y
724 depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zbb)
725 depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zbb)
733 def_bool $(as-instr, .option arch$(comma) +v$(comma) +zvkb)
738 default y
739 depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zba)
740 depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zba)
746 default y
759 default y
766 of bit-specific operations (count bit population, sign extending,
773 default y
774 depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zbc)
775 depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zbc)
780 bool "Zbc extension support for carry-less multiplication instructions"
784 default y
787 extension (carry-less multiplication) and enable its usage.
796 default y
797 depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zbkb)
798 depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zbkb)
806 default y
817 bool "Zicbom extension support for non-coherent DMA operation"
820 default y
829 non-coherent DMA support on devices that need it.
836 default y
847 …# https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=aed44286efa8ae8717a77d94b51ac3614e2ca6…
851 Binutils-2.38 and GCC-12.1.0 bumped the default ISA spec to the newer
856 To make life easier, and avoid forcing toolchains that default to a
864 # https://github.com/llvm/llvm-project/commit/22e199e6afb1263c943c0c0d4498694e15bf8a16
869 -march. This option causes an older ISA spec compatible with these older
871 as passing zicsr and zifencei to -march.
875 default y
885 default y
893 int "Kernel stack size (in power-of-two numbers of page size)" if VMAP_STACK && EXPERT
895 default 1 if 32BIT
896 default 2
923 default RISCV_PROBE_UNALIGNED_ACCESS
928 probed at boot by default.
975 default RISCV_PROBE_VECTOR_UNALIGNED_ACCESS
980 probed at boot by default.
1025 deprecated in future once legacy M-mode software are no longer in use.
1030 default y if RISCV_SBI_V01 || RISCV_M_MODE
1036 scheme. It should be only enabled for M-mode Linux or platforms relying
1077 bool "Kernel support for 32-bit U-mode"
1078 default 64BIT
1081 This option enables support for a 32-bit U-mode running under a 64-bit
1082 kernel at S-mode. riscv32-specific components such as system calls,
1086 If you want to execute 32-bit userspace applications, say Y.
1133 random u64 value in /chosen/kaslr-seed at kernel entry.
1147 string "Built-in kernel command line"
1150 are provided at run-time, during boot. However, there are cases
1154 When that occurs, it is possible to define a built-in command
1158 prompt "Built-in command line usage"
1160 default CMDLINE_FALLBACK
1162 Choose how the kernel will handle the provided built-in command
1168 Use the built-in command line as fallback in case we get nothing
1169 during boot. This is the default behaviour.
1174 The command-line arguments provided during boot will be
1175 appended to the built-in command line. This is useful in
1180 bool "Always use the default kernel command string"
1182 Always use the built-in command line, even if we get one during
1196 default y
1207 by UEFI firmware (such as non-volatile variables, realtime
1215 default y
1221 continue to boot on existing non-UEFI platforms.
1224 …def_bool $(cc-option,-mstack-protector-guard=tls -mstack-protector-guard-reg=tp -mstack-protector-…
1234 default n
1239 default "0x80000000"
1242 explicitly specified to run early relocations of read-write data
1246 bool "Kernel Execute-In-Place from ROM"
1253 Execute-In-Place allows the kernel to run from non-volatile storage
1256 to RAM. Read-write sections, such as the data section and stack,
1277 default "0x21000000"
1284 bool "Permit falling back to parsing riscv,isa for extension support by default"
1285 default y
1296 Please see the dt-binding, located at
1298 on the replacement properties, "riscv,isa-base" and
1299 "riscv,isa-extensions".
1302 bool "Built-in device tree"
1312 string "Built-in device tree source"
1323 default !NONPORTABLE