Kconfig - OpenGrok cross reference for /linux-5.10/arch/arc/Kconfig

1 # SPDX-License-Identifier: GPL-2.0-only
3 # Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
98 source "arch/arc/plat-tb10x/Kconfig"
99 source "arch/arc/plat-axs10x/Kconfig"
100 source "arch/arc/plat-hsdk/Kconfig"
118 	  ISA for the Next Generation ARC-HS cores
143 	  -MMU-v3: Variable Page Sz (4k, 8k, 16k), bigger J-TLB (128x4)
144 	           Shared Address Spaces (for sharing TLB entries in MMU)
145 	  -Caches: New Prog Model, Region Flush
146 	  -Insns: endian swap, load-locked/store-conditional, time-stamp-ctr
151 	bool "ARC-HS"
156 	    - SMP configurations of up to 4 cores with coherency
157 	    - Optional L2 Cache and IO-Coherency
158 	    - Revised Interrupt Architecture (multiple priorites, reg banks,
160 	    - MMUv4 (PIPT dcache, Huge Pages)
161 	    - Instructions for
172 	string "Override default -mcpu compiler flag"
175 	  Override default -mcpu=xxx compiler flag (which is set depending on
186 	bool "Symmetric Multi-Processing"
194 	int "Maximum number of CPUs (2-4096)"
199 	bool "Enable Halt-on-reset boot mode"
201 	  In SMP configuration cores can be configured as Halt-on-reset
202 	  or they could all start at same time. For Halt-on-reset, non
214 	  This IP block enables SMP in ARC-HS38 cores.
215 	  It provides for cross-core interrupts, multi-core debug
230 	  This option specifies "N", with Line-len = 2 power N
232 	  Linux only supports same line lengths for I and D caches.
247 	  This can be used to over-ride the global I/D Cache Enable on a
248 	  per-page basis (but only for pages accessed via MMU such as
250 	  TLB entries have a per-page Cache Enable Bit.
251 	  Note that Global I/D ENABLE + Per Page DISABLE works but corollary
255 	bool "Support VIPT Aliasing D$"
266 	int "ICCM Size in KB"
276 	int "DCCM Size in KB"
301 	  Fixed the deficiency of v1 - possible thrashing in memcpy scenario
302 	  when 2 D-TLB and 1 I-TLB entries index into same 2way set.
309 	  Variable Page size (1k-16k), var JTLB size 128 x (2 or 4)
322 	prompt "MMU Page Size"
341 	prompt "MMU Super Page Size"
365 	# if SMP, LV2 enabled ONLY if ARC implementation has LV2 re-entrancy
385 	bool "Insn: SWAPE (endian-swap)"
402 	  Enable gcc to generate 64-bit load/store instructions
415 	  Depending on the configuration, CPU can contain accumulator reg-pair
444 	  DSP extension presence in HW, no support for DSP-enabled userspace
455 	  run DSP-enabled userspace applications
464 	  and AGU registers to run DSP-enabled userspace applications
490 	  -Lower 2G (0 - 0x7FFF_FFFF ) is user virtual, translated by MMU
491 	  -Upper 2G (0x8000_0000 onwards) is untranslated, for kernel
516 	bool "Support for the 40-bit Physical Address Extension"
525 	int "Kernel Virtual Address Space size (MB)"
533 	  kernel-user gutter)
550 	  Use ONLY-IF-ABS-NECESSARY as it will be very slow and also can hide
562 	  Metaware Debugger. This can come in handy for Linux-host communication
585 	bool "Paranoia Checks in Low Level TLB Handlers"
592 	  Enable paranoid checks and self-test of both ARC-specific and generic