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TOMOYO Linux Cross Reference
Linux/arch/arc/Kconfig

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Diff markup

Differences between /arch/arc/Kconfig (Version linux-6.12-rc7) and /arch/m68k/Kconfig (Version linux-4.11.12)


  1 # SPDX-License-Identifier: GPL-2.0-only        !!   1 config M68K
  2 #                                              !!   2         bool
  3 # Copyright (C) 2004, 2007-2010, 2011-2012 Syn !!   3         default y
  4 #                                              !!   4         select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
  5                                                !!   5         select HAVE_IDE
  6 config ARC                                     !!   6         select HAVE_AOUT if MMU
  7         def_bool y                             !!   7         select HAVE_DEBUG_BUGVERBOSE
  8         select ARC_TIMERS                      << 
  9         select ARCH_HAS_CACHE_LINE_SIZE        << 
 10         select ARCH_HAS_DEBUG_VM_PGTABLE       << 
 11         select ARCH_HAS_DMA_PREP_COHERENT      << 
 12         select ARCH_HAS_PTE_SPECIAL            << 
 13         select ARCH_HAS_SETUP_DMA_OPS          << 
 14         select ARCH_HAS_SYNC_DMA_FOR_CPU       << 
 15         select ARCH_HAS_SYNC_DMA_FOR_DEVICE    << 
 16         select ARCH_NEED_CMPXCHG_1_EMU         << 
 17         select ARCH_SUPPORTS_ATOMIC_RMW if ARC << 
 18         select ARCH_32BIT_OFF_T                << 
 19         select BUILDTIME_TABLE_SORT            << 
 20         select CLONE_BACKWARDS                 << 
 21         select COMMON_CLK                      << 
 22         select DMA_DIRECT_REMAP                << 
 23         select GENERIC_ATOMIC64 if !ISA_ARCV2  << 
 24         # for now, we don't need GENERIC_IRQ_P << 
 25         select GENERIC_IRQ_SHOW                     8         select GENERIC_IRQ_SHOW
 26         select GENERIC_PCI_IOMAP               !!   9         select GENERIC_ATOMIC64
 27         select GENERIC_PENDING_IRQ if SMP      !!  10         select HAVE_UID16
 28         select GENERIC_SCHED_CLOCK             !!  11         select VIRT_TO_BUS
 29         select GENERIC_SMP_IDLE_THREAD         !!  12         select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
 30         select GENERIC_IOREMAP                 !!  13         select GENERIC_CPU_DEVICES
                                                   >>  14         select GENERIC_IOMAP
 31         select GENERIC_STRNCPY_FROM_USER if MM     15         select GENERIC_STRNCPY_FROM_USER if MMU
 32         select GENERIC_STRNLEN_USER if MMU         16         select GENERIC_STRNLEN_USER if MMU
 33         select HAVE_ARCH_KGDB                  !!  17         select ARCH_WANT_IPC_PARSE_VERSION
 34         select HAVE_ARCH_TRACEHOOK             !!  18         select ARCH_USES_GETTIMEOFFSET if MMU && !COLDFIRE
 35         select HAVE_ARCH_TRANSPARENT_HUGEPAGE  !!  19         select HAVE_FUTEX_CMPXCHG if MMU && FUTEX
 36         select HAVE_DEBUG_STACKOVERFLOW        << 
 37         select HAVE_DEBUG_KMEMLEAK             << 
 38         select HAVE_IOREMAP_PROT               << 
 39         select HAVE_KERNEL_GZIP                << 
 40         select HAVE_KERNEL_LZMA                << 
 41         select HAVE_KPROBES                    << 
 42         select HAVE_KRETPROBES                 << 
 43         select HAVE_REGS_AND_STACK_ACCESS_API  << 
 44         select HAVE_MOD_ARCH_SPECIFIC              20         select HAVE_MOD_ARCH_SPECIFIC
 45         select HAVE_PERF_EVENTS                !!  21         select MODULES_USE_ELF_REL
 46         select HAVE_SYSCALL_TRACEPOINTS        << 
 47         select IRQ_DOMAIN                      << 
 48         select LOCK_MM_AND_FIND_VMA            << 
 49         select MODULES_USE_ELF_RELA                22         select MODULES_USE_ELF_RELA
 50         select OF                              !!  23         select OLD_SIGSUSPEND3
 51         select OF_EARLY_FLATTREE               !!  24         select OLD_SIGACTION
 52         select PCI_SYSCALL if PCI              << 
 53         select HAVE_ARCH_JUMP_LABEL if ISA_ARC << 
 54         select TRACE_IRQFLAGS_SUPPORT          << 
 55         select HAVE_EBPF_JIT if ISA_ARCV2      << 
 56                                                << 
 57 config LOCKDEP_SUPPORT                         << 
 58         def_bool y                             << 
 59                                                << 
 60 config SCHED_OMIT_FRAME_POINTER                << 
 61         def_bool y                             << 
 62                                                    25 
 63 config GENERIC_CSUM                            !!  26 config RWSEM_GENERIC_SPINLOCK
 64         def_bool y                             !!  27         bool
                                                   >>  28         default y
 65                                                    29 
 66 config ARCH_FLATMEM_ENABLE                     !!  30 config RWSEM_XCHGADD_ALGORITHM
 67         def_bool y                             !!  31         bool
 68                                                    32 
 69 config MMU                                     !!  33 config ARCH_HAS_ILOG2_U32
 70         def_bool y                             !!  34         bool
 71                                                    35 
 72 config NO_IOPORT_MAP                           !!  36 config ARCH_HAS_ILOG2_U64
 73         def_bool y                             !!  37         bool
 74                                                << 
 75 config GENERIC_CALIBRATE_DELAY                 << 
 76         def_bool y                             << 
 77                                                    38 
 78 config GENERIC_HWEIGHT                             39 config GENERIC_HWEIGHT
 79         def_bool y                             !!  40         bool
 80                                                << 
 81 config STACKTRACE_SUPPORT                      << 
 82         def_bool y                             << 
 83         select STACKTRACE                      << 
 84                                                << 
 85 menu "ARC Architecture Configuration"          << 
 86                                                << 
 87 menu "ARC Platform/SoC/Board"                  << 
 88                                                << 
 89 source "arch/arc/plat-tb10x/Kconfig"           << 
 90 source "arch/arc/plat-axs10x/Kconfig"          << 
 91 source "arch/arc/plat-hsdk/Kconfig"            << 
 92                                                << 
 93 endmenu                                        << 
 94                                                << 
 95 choice                                         << 
 96         prompt "ARC Instruction Set"           << 
 97         default ISA_ARCV2                      << 
 98                                                << 
 99 config ISA_ARCOMPACT                           << 
100         bool "ARCompact ISA"                   << 
101         select CPU_NO_EFFICIENT_FFS            << 
102         help                                   << 
103           The original ARC ISA of ARC600/700 c << 
104                                                << 
105 config ISA_ARCV2                               << 
106         bool "ARC ISA v2"                      << 
107         select ARC_TIMERS_64BIT                << 
108         help                                   << 
109           ISA for the Next Generation ARC-HS c << 
110                                                << 
111 endchoice                                      << 
112                                                << 
113 menu "ARC CPU Configuration"                   << 
114                                                << 
115 choice                                         << 
116         prompt "ARC Core"                      << 
117         default ARC_CPU_770 if ISA_ARCOMPACT   << 
118         default ARC_CPU_HS if ISA_ARCV2        << 
119                                                << 
120 config ARC_CPU_770                             << 
121         bool "ARC770"                          << 
122         depends on ISA_ARCOMPACT               << 
123         select ARC_HAS_SWAPE                   << 
124         help                                   << 
125           Support for ARC770 core introduced w << 
126           This core has a bunch of cool new fe << 
127           -MMU-v3: Variable Page Sz (4k, 8k, 1 << 
128                    Shared Address Spaces (for  << 
129           -Caches: New Prog Model, Region Flus << 
130           -Insns: endian swap, load-locked/sto << 
131                                                << 
132 config ARC_CPU_HS                              << 
133         bool "ARC-HS"                          << 
134         depends on ISA_ARCV2                   << 
135         help                                   << 
136           Support for ARC HS38x Cores based on << 
137           The notable features are:            << 
138             - SMP configurations of up to 4 co << 
139             - Optional L2 Cache and IO-Coheren << 
140             - Revised Interrupt Architecture ( << 
141                 auto stack switch, auto regfil << 
142             - MMUv4 (PIPT dcache, Huge Pages)  << 
143             - Instructions for                 << 
144                 * 64bit load/store: LDD, STD   << 
145                 * Hardware assisted divide/rem << 
146                 * Function prologue/epilogue:  << 
147                 * IRQ enable/disable: CLRI, SE << 
148                 * pop count: FFS, FLS          << 
149                 * SETcc, BMSKN, XBFU...        << 
150                                                << 
151 endchoice                                      << 
152                                                << 
153 config ARC_TUNE_MCPU                           << 
154         string "Override default -mcpu compile << 
155         default ""                             << 
156         help                                   << 
157           Override default -mcpu=xxx compiler  << 
158           the ISA version) with the specified  << 
159           NOTE: If specified flag isn't suppor << 
160           ISA default value will be used as a  << 
161                                                << 
162 config CPU_BIG_ENDIAN                          << 
163         bool "Enable Big Endian Mode"          << 
164         help                                   << 
165           Build kernel for Big Endian Mode of  << 
166                                                << 
167 config SMP                                     << 
168         bool "Symmetric Multi-Processing"      << 
169         select ARC_MCIP if ISA_ARCV2           << 
170         help                                   << 
171           This enables support for systems wit << 
172                                                << 
173 if SMP                                         << 
174                                                << 
175 config NR_CPUS                                 << 
176         int "Maximum number of CPUs (2-4096)"  << 
177         range 2 4096                           << 
178         default "4"                            << 
179                                                << 
180 config ARC_SMP_HALT_ON_RESET                   << 
181         bool "Enable Halt-on-reset boot mode"  << 
182         help                                   << 
183           In SMP configuration cores can be co << 
184           or they could all start at same time << 
185           masters are parked until Master kick << 
186           at designated entry point. For other << 
187           entry point and spin wait for Master << 
188                                                << 
189 endif #SMP                                     << 
190                                                << 
191 config ARC_MCIP                                << 
192         bool "ARConnect Multicore IP (MCIP) Su << 
193         depends on ISA_ARCV2                   << 
194         default y if SMP                       << 
195         help                                   << 
196           This IP block enables SMP in ARC-HS3 << 
197           It provides for cross-core interrupt << 
198           hardware semaphores, shared memory,. << 
199                                                << 
200 menuconfig ARC_CACHE                           << 
201         bool "Enable Cache Support"            << 
202         default y                                  41         default y
203                                                    42 
204 if ARC_CACHE                                   !!  43 config GENERIC_CALIBRATE_DELAY
205                                                !!  44         bool
206 config ARC_CACHE_LINE_SHIFT                    << 
207         int "Cache Line Length (as power of 2) << 
208         range 5 7                              << 
209         default "6"                            << 
210         help                                   << 
211           Starting with ARC700 4.9, Cache line << 
212           This option specifies "N", with Line << 
213           So line lengths of 32, 64, 128 are s << 
214           Linux only supports same line length << 
215                                                << 
216 config ARC_HAS_ICACHE                          << 
217         bool "Use Instruction Cache"           << 
218         default y                                  45         default y
219                                                    46 
220 config ARC_HAS_DCACHE                          !!  47 config GENERIC_CSUM
221         bool "Use Data Cache"                  !!  48         bool
222         default y                              << 
223                                                    49 
224 config ARC_CACHE_PAGES                         !!  50 config TIME_LOW_RES
225         bool "Per Page Cache Control"          !!  51         bool
226         default y                                  52         default y
227         depends on ARC_HAS_ICACHE || ARC_HAS_D << 
228         help                                   << 
229           This can be used to over-ride the gl << 
230           per-page basis (but only for pages a << 
231           Kernel Virtual address or User Virtu << 
232           TLB entries have a per-page Cache En << 
233           Note that Global I/D ENABLE + Per Pa << 
234           Global DISABLE + Per Page ENABLE won << 
235                                                << 
236 endif #ARC_CACHE                               << 
237                                                << 
238 config ARC_HAS_ICCM                            << 
239         bool "Use ICCM"                        << 
240         help                                   << 
241           Single Cycle RAMS to store Fast Path << 
242                                                    53 
243 config ARC_ICCM_SZ                             !!  54 config NO_IOPORT_MAP
244         int "ICCM Size in KB"                  !!  55         def_bool y
245         default "64"                           << 
246         depends on ARC_HAS_ICCM                << 
247                                                    56 
248 config ARC_HAS_DCCM                            !!  57 config NO_DMA
249         bool "Use DCCM"                        !!  58         def_bool (MMU && SUN3) || (!MMU && !COLDFIRE)
250         help                                   << 
251           Single Cycle RAMS to store Fast Path << 
252                                                    59 
253 config ARC_DCCM_SZ                             !!  60 config ZONE_DMA
254         int "DCCM Size in KB"                  !!  61         bool
255         default "64"                           !!  62         default y
256         depends on ARC_HAS_DCCM                << 
257                                                << 
258 config ARC_DCCM_BASE                           << 
259         hex "DCCM map address"                 << 
260         default "0xA0000000"                   << 
261         depends on ARC_HAS_DCCM                << 
262                                                << 
263 choice                                         << 
264         prompt "MMU Version"                   << 
265         default ARC_MMU_V3 if ISA_ARCOMPACT    << 
266         default ARC_MMU_V4 if ISA_ARCV2        << 
267                                                << 
268 config ARC_MMU_V3                              << 
269         bool "MMU v3"                          << 
270         depends on ISA_ARCOMPACT               << 
271         help                                   << 
272           Introduced with ARC700 4.10: New Fea << 
273           Variable Page size (1k-16k), var JTL << 
274           Shared Address Spaces (SASID)        << 
275                                                    63 
276 config ARC_MMU_V4                              !!  64 config HZ
277         bool "MMU v4"                          !!  65         int
278         depends on ISA_ARCV2                   !!  66         default 1000 if CLEOPATRA
                                                   >>  67         default 100
279                                                    68 
280 endchoice                                      !!  69 config PGTABLE_LEVELS
                                                   >>  70         default 2 if SUN3 || COLDFIRE
                                                   >>  71         default 3
281                                                    72 
                                                   >>  73 source "init/Kconfig"
282                                                    74 
283 choice                                         !!  75 source "kernel/Kconfig.freezer"
284         prompt "MMU Page Size"                 << 
285         default ARC_PAGE_SIZE_8K               << 
286                                                    76 
287 config ARC_PAGE_SIZE_8K                        !!  77 config MMU
288         bool "8KB"                             !!  78         bool "MMU-based Paged Memory Management Support"
289         select HAVE_PAGE_SIZE_8KB              !!  79         default y
290         help                                       80         help
291           Choose between 8k vs 16k             !!  81           Select if you want MMU-based virtualised addressing space
292                                                !!  82           support by paged memory management. If unsure, say 'Y'.
293 config ARC_PAGE_SIZE_16K                       << 
294         select HAVE_PAGE_SIZE_16KB             << 
295         bool "16KB"                            << 
296                                                << 
297 config ARC_PAGE_SIZE_4K                        << 
298         bool "4KB"                             << 
299         select HAVE_PAGE_SIZE_4KB              << 
300         depends on ARC_MMU_V3 || ARC_MMU_V4    << 
301                                                    83 
302 endchoice                                      !!  84 config MMU_MOTOROLA
                                                   >>  85         bool
303                                                    86 
304 choice                                         !!  87 config MMU_COLDFIRE
305         prompt "MMU Super Page Size"           !!  88         bool
306         depends on ISA_ARCV2 && TRANSPARENT_HU << 
307         default ARC_HUGEPAGE_2M                << 
308                                                    89 
309 config ARC_HUGEPAGE_2M                         !!  90 config MMU_SUN3
310         bool "2MB"                             !!  91         bool
                                                   >>  92         depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE
311                                                    93 
312 config ARC_HUGEPAGE_16M                        !!  94 config KEXEC
313         bool "16MB"                            !!  95         bool "kexec system call"
314                                                !!  96         depends on M68KCLASSIC
315 endchoice                                      !!  97         select KEXEC_CORE
316                                                << 
317 config PGTABLE_LEVELS                          << 
318         int "Number of Page table levels"      << 
319         default 2                              << 
320                                                << 
321 config ARC_COMPACT_IRQ_LEVELS                  << 
322         depends on ISA_ARCOMPACT               << 
323         bool "Setup Timer IRQ as high Priority << 
324         # if SMP, LV2 enabled ONLY if ARC impl << 
325         depends on !SMP                        << 
326                                                << 
327 config ARC_FPU_SAVE_RESTORE                    << 
328         bool "Enable FPU state persistence acr << 
329         help                                       98         help
330           ARCompact FPU has internal registers !!  99           kexec is a system call that implements the ability to shutdown your
331           Floating Point operations. There are !! 100           current kernel, and to start another kernel.  It is like a reboot
332           for floating point exceptions and ro !! 101           but it is independent of the system firmware.   And like a reboot
333           preserved across task context switch !! 102           you can start any kernel with it, not just Linux.
334                                                   103 
335 config ARC_CANT_LLSC                           !! 104           The name comes from the similarity to the exec system call.
336         def_bool n                             << 
337                                                   105 
338 config ARC_HAS_LLSC                            !! 106           It is an ongoing process to be certain the hardware in a machine
339         bool "Insn: LLOCK/SCOND (efficient ato !! 107           is properly shutdown, so do not be surprised if this code does not
340         default y                              !! 108           initially work for you.  As of this writing the exact hardware
341         depends on !ARC_CANT_LLSC              !! 109           interface is strongly in flux, so no good recommendation can be
                                                   >> 110           made.
342                                                   111 
343 config ARC_HAS_SWAPE                           !! 112 config BOOTINFO_PROC
344         bool "Insn: SWAPE (endian-swap)"       !! 113         bool "Export bootinfo in procfs"
345         default y                              !! 114         depends on KEXEC && M68KCLASSIC
346                                                << 
347 if ISA_ARCV2                                   << 
348                                                << 
349 config ARC_USE_UNALIGNED_MEM_ACCESS            << 
350         bool "Enable unaligned access in HW"   << 
351         default y                              << 
352         select HAVE_EFFICIENT_UNALIGNED_ACCESS << 
353         help                                      115         help
354           The ARC HS architecture supports una !! 116           Say Y to export the bootinfo used to boot the kernel in a
355           which is disabled by default. Enable !! 117           "bootinfo" file in procfs.  This is useful with kexec.
356           hardware and use software to use it  << 
357                                                   118 
358 config ARC_HAS_LL64                            !! 119 menu "Platform setup"
359         bool "Insn: 64bit LDD/STD"             << 
360         help                                   << 
361           Enable gcc to generate 64-bit load/s << 
362           ISA mandates even/odd registers to a << 
363           dest operands with 2 possible source << 
364         default y                              << 
365                                                   120 
366 config ARC_HAS_DIV_REM                         !! 121 source arch/m68k/Kconfig.cpu
367         bool "Insn: div, divu, rem, remu"      << 
368         default y                              << 
369                                                   122 
370 config ARC_HAS_ACCL_REGS                       !! 123 source arch/m68k/Kconfig.machine
371         bool "Reg Pair ACCL:ACCH (FPU and/or M << 
372         default y                              << 
373         help                                   << 
374           Depending on the configuration, CPU  << 
375           (also referred to as r58:r59). These << 
376           kernel needs to save/restore per pro << 
377                                                << 
378 config ARC_DSP_HANDLED                         << 
379         def_bool n                             << 
380                                                << 
381 config ARC_DSP_SAVE_RESTORE_REGS               << 
382         def_bool n                             << 
383                                                << 
384 choice                                         << 
385         prompt "DSP support"                   << 
386         default ARC_DSP_NONE                   << 
387         help                                   << 
388           Depending on the configuration, CPU  << 
389           (ACC0_GLO, ACC0_GHI, DSP_BFLY0, DSP_ << 
390           Below are options describing how to  << 
391           interrupt entry / exit and in contex << 
392                                                   124 
393 config ARC_DSP_NONE                            !! 125 source arch/m68k/Kconfig.bus
394         bool "No DSP extension presence in HW" << 
395         help                                   << 
396           No DSP extension presence in HW      << 
397                                                   126 
398 config ARC_DSP_KERNEL                          !! 127 endmenu
399         bool "DSP extension in HW, no support  << 
400         select ARC_HAS_ACCL_REGS               << 
401         select ARC_DSP_HANDLED                 << 
402         help                                   << 
403           DSP extension presence in HW, no sup << 
404           applications. We don't save / restor << 
405           some minimal preparations so userspa << 
406                                                << 
407 config ARC_DSP_USERSPACE                       << 
408         bool "Support DSP for userspace apps"  << 
409         select ARC_HAS_ACCL_REGS               << 
410         select ARC_DSP_HANDLED                 << 
411         select ARC_DSP_SAVE_RESTORE_REGS       << 
412         help                                   << 
413           DSP extension presence in HW, suppor << 
414           run DSP-enabled userspace applicatio << 
415                                                   128 
416 config ARC_DSP_AGU_USERSPACE                   !! 129 menu "Kernel Features"
417         bool "Support DSP with AGU for userspa << 
418         select ARC_HAS_ACCL_REGS               << 
419         select ARC_DSP_HANDLED                 << 
420         select ARC_DSP_SAVE_RESTORE_REGS       << 
421         help                                   << 
422           DSP and AGU extensions presence in H << 
423           and AGU registers to run DSP-enabled << 
424 endchoice                                      << 
425                                                << 
426 config ARC_IRQ_NO_AUTOSAVE                     << 
427         bool "Disable hardware autosave regfil << 
428         default n                              << 
429         help                                   << 
430           On HS cores, taken interrupt auto sa << 
431           This is programmable and can be opti << 
432           software INTERRUPT_PROLOGUE/EPILGUE  << 
433                                                   130 
434 config ARC_LPB_DISABLE                         !! 131 if COLDFIRE
435         bool "Disable loop buffer (LPB)"       !! 132 source "kernel/Kconfig.preempt"
436         help                                   !! 133 endif
437           On HS cores, loop buffer (LPB) is pr << 
438           be optionally disabled.              << 
439                                                   134 
440 endif # ISA_ARCV2                              !! 135 source "mm/Kconfig"
441                                                   136 
442 endmenu   # "ARC CPU Configuration"            !! 137 endmenu
443                                                   138 
444 config LINUX_LINK_BASE                         !! 139 menu "Executable file formats"
445         hex "Kernel link address"              << 
446         default "0x80000000"                   << 
447         help                                   << 
448           ARC700 divides the 32 bit phy addres << 
449           -Lower 2G (0 - 0x7FFF_FFFF ) is user << 
450           -Upper 2G (0x8000_0000 onwards) is u << 
451           Typically Linux kernel is linked at  << 
452           hence the default value of 0x8zs.    << 
453           However some customers have peripher << 
454           Linux needs to be scooted a bit.     << 
455           If you don't know what the above mea << 
456           This needs to match memory start add << 
457                                                << 
458 config LINUX_RAM_BASE                          << 
459         hex "RAM base address"                 << 
460         default LINUX_LINK_BASE                << 
461         help                                   << 
462           By default Linux is linked at base o << 
463           cases (such as HSDK), Linux can't be << 
464           this option.                         << 
465                                                << 
466 config HIGHMEM                                 << 
467         bool "High Memory Support"             << 
468         select HAVE_ARCH_PFN_VALID             << 
469         select KMAP_LOCAL                      << 
470         help                                   << 
471           With ARC 2G:2G address split, only u << 
472           kernel. Enable this to potentially a << 
473           in future                            << 
474                                                << 
475 config ARC_HAS_PAE40                           << 
476         bool "Support for the 40-bit Physical  << 
477         depends on ISA_ARCV2                   << 
478         select HIGHMEM                         << 
479         select PHYS_ADDR_T_64BIT               << 
480         help                                   << 
481           Enable access to physical memory bey << 
482           ARC cores with 40 bit Physical Addre << 
483                                                   140 
484 config ARC_KVADDR_SIZE                         !! 141 source "fs/Kconfig.binfmt"
485         int "Kernel Virtual Address Space size << 
486         range 0 512                            << 
487         default "256"                          << 
488         help                                   << 
489           The kernel address space is carved o << 
490           space for catering to vmalloc, modul << 
491           not suffice vmalloc requirements of  << 
492           this to be stretched to 512 MB (by e << 
493           kernel-user gutter)                  << 
494                                                   142 
495 config ARC_CURR_IN_REG                         !! 143 endmenu
496         bool "cache current task pointer in gp << 
497         default y                              << 
498         help                                   << 
499           This reserves gp register to point t << 
500           kernel mode eliding memory access fo << 
501                                                   144 
                                                   >> 145 if !MMU
                                                   >> 146 menu "Power management options"
502                                                   147 
503 config ARC_EMUL_UNALIGNED                      !! 148 config PM
504         bool "Emulate unaligned memory access  !! 149         bool "Power Management support"
505         select SYSCTL_ARCH_UNALIGN_NO_WARN     << 
506         select SYSCTL_ARCH_UNALIGN_ALLOW       << 
507         depends on ISA_ARCOMPACT               << 
508         help                                      150         help
509           This enables misaligned 16 & 32 bit  !! 151           Support processor power management modes
510           Use ONLY-IF-ABS-NECESSARY as it will << 
511           potential bugs in code               << 
512                                                   152 
513 config HZ                                      !! 153 endmenu
514         int "Timer Frequency"                  !! 154 endif
515         default 100                            << 
516                                                << 
517 config ARC_METAWARE_HLINK                      << 
518         bool "Support for Metaware debugger as << 
519         help                                   << 
520           This options allows a Linux userland << 
521           host file system (open/creat/read/wr << 
522           Metaware Debugger. This can come in  << 
523           when there is no real usable periphe << 
524                                                   155 
525 menuconfig ARC_DBG                             !! 156 source "net/Kconfig"
526         bool "ARC debugging"                   << 
527         default y                              << 
528                                                   157 
529 if ARC_DBG                                     !! 158 source "drivers/Kconfig"
530                                                   159 
531 config ARC_DW2_UNWIND                          !! 160 source "arch/m68k/Kconfig.devices"
532         bool "Enable DWARF specific kernel sta << 
533         default y                              << 
534         select KALLSYMS                        << 
535         help                                   << 
536           Compiles the kernel with DWARF unwin << 
537           to get stack backtraces.             << 
538                                                   161 
539           If you say Y here the resulting kern !! 162 source "fs/Kconfig"
540           but not slower, and it will give ver << 
541           If you don't debug the kernel, you c << 
542           to solve problems without frame unwi << 
543                                                << 
544 config ARC_DBG_JUMP_LABEL                      << 
545         bool "Paranoid checks in Static Keys ( << 
546         depends on JUMP_LABEL                  << 
547         default y if STATIC_KEYS_SELFTEST      << 
548         help                                   << 
549           Enable paranoid checks and self-test << 
550           part of static keys (jump labels) re << 
551 endif                                          << 
552                                                   163 
553 config ARC_BUILTIN_DTB_NAME                    !! 164 source "arch/m68k/Kconfig.debug"
554         string "Built in DTB"                  << 
555         help                                   << 
556           Set the name of the DTB to embed in  << 
557           Leaving it blank selects the "nsim_7 << 
558                                                   165 
559 endmenu  # "ARC Architecture Configuration"    !! 166 source "security/Kconfig"
560                                                   167 
561 config ARCH_FORCE_MAX_ORDER                    !! 168 source "crypto/Kconfig"
562         int "Maximum zone order"               << 
563         default "11" if ARC_HUGEPAGE_16M       << 
564         default "10"                           << 
565                                                   169 
566 source "kernel/power/Kconfig"                  !! 170 source "lib/Kconfig"
                                                      

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