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Linux/arch/openrisc/Kconfig

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Differences between /arch/openrisc/Kconfig (Version linux-6.12-rc7) and /arch/sparc/Kconfig (Version linux-4.18.20)


  1 # SPDX-License-Identifier: GPL-2.0             !!   1 config 64BIT
  2 #                                              !!   2         bool "64-bit kernel" if "$(ARCH)" = "sparc"
  3 # For a description of the syntax of this conf !!   3         default "$(ARCH)" = "sparc64"
  4 # see Documentation/kbuild/kconfig-language.rs !!   4         help
  5 #                                              !!   5           SPARC is a family of RISC microprocessors designed and marketed by
                                                   >>   6           Sun Microsystems, incorporated.  They are very widely found in Sun
                                                   >>   7           workstations and clones.
  6                                                     8 
  7 config OPENRISC                                !!   9           Say yes to build a 64-bit kernel - formerly known as sparc64
  8         def_bool y                             !!  10           Say no to build a 32-bit kernel - formerly known as sparc
  9         select ARCH_32BIT_OFF_T                !!  11 
 10         select ARCH_HAS_DMA_SET_UNCACHED       !!  12 config SPARC
 11         select ARCH_HAS_DMA_CLEAR_UNCACHED     !!  13         bool
 12         select ARCH_HAS_SYNC_DMA_FOR_DEVICE    !!  14         default y
 13         select COMMON_CLK                      !!  15         select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
                                                   >>  16         select ARCH_MIGHT_HAVE_PC_SERIO
 14         select OF                                  17         select OF
 15         select OF_EARLY_FLATTREE               !!  18         select OF_PROMTREE
 16         select IRQ_DOMAIN                      !!  19         select HAVE_IDE
 17         select GPIOLIB                         !!  20         select HAVE_OPROFILE
                                                   >>  21         select HAVE_ARCH_KGDB if !SMP || SPARC64
 18         select HAVE_ARCH_TRACEHOOK                 22         select HAVE_ARCH_TRACEHOOK
 19         select SPARSE_IRQ                      !!  23         select HAVE_EXIT_THREAD
 20         select GENERIC_IRQ_CHIP                !!  24         select SYSCTL_EXCEPTION_TRACE
 21         select GENERIC_IRQ_PROBE               !!  25         select RTC_CLASS
                                                   >>  26         select RTC_DRV_M48T59
                                                   >>  27         select RTC_SYSTOHC
                                                   >>  28         select HAVE_ARCH_JUMP_LABEL if SPARC64
 22         select GENERIC_IRQ_SHOW                    29         select GENERIC_IRQ_SHOW
                                                   >>  30         select ARCH_WANT_IPC_PARSE_VERSION
 23         select GENERIC_PCI_IOMAP                   31         select GENERIC_PCI_IOMAP
 24         select GENERIC_IOREMAP                 !!  32         select HAVE_NMI_WATCHDOG if SPARC64
 25         select GENERIC_CPU_DEVICES             !!  33         select HAVE_CBPF_JIT if SPARC32
 26         select HAVE_PCI                        !!  34         select HAVE_EBPF_JIT if SPARC64
 27         select HAVE_UID16                      !!  35         select HAVE_DEBUG_BUGVERBOSE
 28         select HAVE_PAGE_SIZE_8KB              << 
 29         select GENERIC_ATOMIC64                << 
 30         select GENERIC_CLOCKEVENTS_BROADCAST   << 
 31         select GENERIC_SMP_IDLE_THREAD             36         select GENERIC_SMP_IDLE_THREAD
                                                   >>  37         select GENERIC_CLOCKEVENTS
                                                   >>  38         select GENERIC_STRNCPY_FROM_USER
                                                   >>  39         select GENERIC_STRNLEN_USER
 32         select MODULES_USE_ELF_RELA                40         select MODULES_USE_ELF_RELA
 33         select HAVE_DEBUG_STACKOVERFLOW        !!  41         select ODD_RT_SIGACTION
 34         select OR1K_PIC                        !!  42         select OLD_SIGSUSPEND
 35         select CPU_NO_EFFICIENT_FFS if !OPENRI !!  43         select ARCH_HAS_SG_CHAIN
 36         select ARCH_USE_QUEUED_RWLOCKS         !!  44         select CPU_NO_EFFICIENT_FFS
 37         select OMPIC if SMP                    !!  45         select LOCKDEP_SMALL if LOCKDEP
 38         select PCI_DOMAINS_GENERIC if PCI      !!  46         select NEED_DMA_MAP_STATE
 39         select PCI_MSI if PCI                  !!  47         select NEED_SG_DMA_LENGTH
 40         select ARCH_WANT_FRAME_POINTERS        << 
 41         select GENERIC_IRQ_MULTI_HANDLER       << 
 42         select MMU_GATHER_NO_RANGE if MMU      << 
 43         select TRACE_IRQFLAGS_SUPPORT          << 
 44                                                    48 
 45 config CPU_BIG_ENDIAN                          !!  49 config SPARC32
 46         def_bool y                             !!  50         def_bool !64BIT
                                                   >>  51         select GENERIC_ATOMIC64
                                                   >>  52         select CLZ_TAB
                                                   >>  53         select HAVE_UID16
                                                   >>  54         select OLD_SIGACTION
 47                                                    55 
 48 config MMU                                     !!  56 config SPARC64
 49         def_bool y                             !!  57         def_bool 64BIT
                                                   >>  58         select HAVE_FUNCTION_TRACER
                                                   >>  59         select HAVE_FUNCTION_GRAPH_TRACER
                                                   >>  60         select HAVE_KRETPROBES
                                                   >>  61         select HAVE_KPROBES
                                                   >>  62         select HAVE_RCU_TABLE_FREE if SMP
                                                   >>  63         select HAVE_MEMBLOCK
                                                   >>  64         select HAVE_MEMBLOCK_NODE_MAP
                                                   >>  65         select HAVE_ARCH_TRANSPARENT_HUGEPAGE
                                                   >>  66         select HAVE_DYNAMIC_FTRACE
                                                   >>  67         select HAVE_FTRACE_MCOUNT_RECORD
                                                   >>  68         select HAVE_SYSCALL_TRACEPOINTS
                                                   >>  69         select HAVE_CONTEXT_TRACKING
                                                   >>  70         select HAVE_DEBUG_KMEMLEAK
                                                   >>  71         select IOMMU_HELPER
                                                   >>  72         select SPARSE_IRQ
                                                   >>  73         select RTC_DRV_CMOS
                                                   >>  74         select RTC_DRV_BQ4802
                                                   >>  75         select RTC_DRV_SUN4V
                                                   >>  76         select RTC_DRV_STARFIRE
                                                   >>  77         select HAVE_PERF_EVENTS
                                                   >>  78         select PERF_USE_VMALLOC
                                                   >>  79         select IRQ_PREFLOW_FASTEOI
                                                   >>  80         select ARCH_HAVE_NMI_SAFE_CMPXCHG
                                                   >>  81         select HAVE_C_RECORDMCOUNT
                                                   >>  82         select NO_BOOTMEM
                                                   >>  83         select HAVE_ARCH_AUDITSYSCALL
                                                   >>  84         select ARCH_SUPPORTS_ATOMIC_RMW
                                                   >>  85         select HAVE_NMI
                                                   >>  86         select HAVE_REGS_AND_STACK_ACCESS_API
                                                   >>  87         select ARCH_USE_QUEUED_RWLOCKS
                                                   >>  88         select ARCH_USE_QUEUED_SPINLOCKS
                                                   >>  89         select GENERIC_TIME_VSYSCALL
                                                   >>  90         select ARCH_CLOCKSOURCE_DATA
                                                   >>  91         select ARCH_HAS_PTE_SPECIAL
                                                   >>  92 
                                                   >>  93 config ARCH_DEFCONFIG
                                                   >>  94         string
                                                   >>  95         default "arch/sparc/configs/sparc32_defconfig" if SPARC32
                                                   >>  96         default "arch/sparc/configs/sparc64_defconfig" if SPARC64
 50                                                    97 
 51 config GENERIC_HWEIGHT                         !!  98 config ARCH_PROC_KCORE_TEXT
 52         def_bool y                                 99         def_bool y
 53                                                   100 
 54 config NO_IOPORT_MAP                           !! 101 config CPU_BIG_ENDIAN
 55         def_bool y                                102         def_bool y
 56                                                   103 
 57 # For now, use generic checksum functions      !! 104 config ARCH_ATU
 58 #These can be reimplemented in assembly later  !! 105         bool
 59 config GENERIC_CSUM                            !! 106         default y if SPARC64
 60         def_bool y                             << 
 61                                                   107 
 62 config STACKTRACE_SUPPORT                         108 config STACKTRACE_SUPPORT
 63         def_bool y                             !! 109         bool
                                                   >> 110         default y if SPARC64
 64                                                   111 
 65 config LOCKDEP_SUPPORT                            112 config LOCKDEP_SUPPORT
 66         def_bool  y                            !! 113         bool
                                                   >> 114         default y if SPARC64
                                                   >> 115 
                                                   >> 116 config ARCH_HIBERNATION_POSSIBLE
                                                   >> 117         def_bool y if SPARC64
                                                   >> 118 
                                                   >> 119 config AUDIT_ARCH
                                                   >> 120         bool
                                                   >> 121         default y
                                                   >> 122 
                                                   >> 123 config HAVE_SETUP_PER_CPU_AREA
                                                   >> 124         def_bool y if SPARC64
                                                   >> 125 
                                                   >> 126 config NEED_PER_CPU_EMBED_FIRST_CHUNK
                                                   >> 127         def_bool y if SPARC64
                                                   >> 128 
                                                   >> 129 config NEED_PER_CPU_PAGE_FIRST_CHUNK
                                                   >> 130         def_bool y if SPARC64
                                                   >> 131 
                                                   >> 132 config MMU
                                                   >> 133         bool
                                                   >> 134         default y
                                                   >> 135 
                                                   >> 136 config HIGHMEM
                                                   >> 137         bool
                                                   >> 138         default y if SPARC32
                                                   >> 139 
                                                   >> 140 config ZONE_DMA
                                                   >> 141         bool
                                                   >> 142         default y if SPARC32
                                                   >> 143 
                                                   >> 144 config GENERIC_ISA_DMA
                                                   >> 145         bool
                                                   >> 146         default y if SPARC32
                                                   >> 147 
                                                   >> 148 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
                                                   >> 149         def_bool y if SPARC64
                                                   >> 150 
                                                   >> 151 config PGTABLE_LEVELS
                                                   >> 152         default 4 if 64BIT
                                                   >> 153         default 3
                                                   >> 154 
                                                   >> 155 config ARCH_SUPPORTS_UPROBES
                                                   >> 156         def_bool y if SPARC64
                                                   >> 157 
                                                   >> 158 source "init/Kconfig"
                                                   >> 159 
                                                   >> 160 source "kernel/Kconfig.freezer"
 67                                                   161 
 68 menu "Processor type and features"                162 menu "Processor type and features"
 69                                                   163 
 70 choice                                         !! 164 config SMP
 71         prompt "Subarchitecture"               !! 165         bool "Symmetric multi-processing support"
 72         default OR1K_1200                      !! 166         ---help---
                                                   >> 167           This enables support for systems with more than one CPU. If you have
                                                   >> 168           a system with only one CPU, say N. If you have a system with more
                                                   >> 169           than one CPU, say Y.
 73                                                   170 
 74 config OR1K_1200                               !! 171           If you say N here, the kernel will run on uni- and multiprocessor
 75         bool "OR1200"                          !! 172           machines, but will use only one CPU of a multiprocessor machine. If
 76         help                                   !! 173           you say Y here, the kernel will run on many, but not all,
 77           Generic OpenRISC 1200 architecture   !! 174           uniprocessor machines. On a uniprocessor machine, the kernel
                                                   >> 175           will run faster if you say N here.
                                                   >> 176 
                                                   >> 177           People using multiprocessor machines who say Y here should also say
                                                   >> 178           Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
                                                   >> 179           Management" code will be disabled if you say Y here.
 78                                                   180 
 79 endchoice                                      !! 181           See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
                                                   >> 182           available at <http://www.tldp.org/docs.html#howto>.
 80                                                   183 
 81 config DCACHE_WRITETHROUGH                     !! 184           If you don't know what to do here, say N.
 82         bool "Have write through data caches"  << 
 83         default n                              << 
 84         help                                   << 
 85           Select this if your implementation f << 
 86           Selecting 'N' here will allow the ke << 
 87           caches at relevant times. Most OpenR << 
 88           through data caches.                 << 
 89                                                   185 
 90           If unsure say N here                 !! 186 config NR_CPUS
                                                   >> 187         int "Maximum number of CPUs"
                                                   >> 188         depends on SMP
                                                   >> 189         range 2 32 if SPARC32
                                                   >> 190         range 2 4096 if SPARC64
                                                   >> 191         default 32 if SPARC32
                                                   >> 192         default 4096 if SPARC64
                                                   >> 193 
                                                   >> 194 source kernel/Kconfig.hz
                                                   >> 195 
                                                   >> 196 config RWSEM_GENERIC_SPINLOCK
                                                   >> 197         bool
                                                   >> 198         default y if SPARC32
                                                   >> 199 
                                                   >> 200 config RWSEM_XCHGADD_ALGORITHM
                                                   >> 201         bool
                                                   >> 202         default y if SPARC64
 91                                                   203 
 92 config OPENRISC_BUILTIN_DTB                    !! 204 config GENERIC_HWEIGHT
 93         string "Builtin DTB"                   !! 205         bool
 94         default ""                             !! 206         default y
 95                                                   207 
 96 menu "Class II Instructions"                   !! 208 config GENERIC_CALIBRATE_DELAY
                                                   >> 209         bool
                                                   >> 210         default y
 97                                                   211 
 98 config OPENRISC_HAVE_INST_FF1                  !! 212 config ARCH_MAY_HAVE_PC_FDC
 99         bool "Have instruction l.ff1"          !! 213         bool
100         default y                                 214         default y
101         help                                   << 
102           Select this if your implementation h << 
103                                                   215 
104 config OPENRISC_HAVE_INST_FL1                  !! 216 config EMULATED_CMPXCHG
105         bool "Have instruction l.fl1"          !! 217         bool
                                                   >> 218         default y if SPARC32
                                                   >> 219         help
                                                   >> 220           Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
                                                   >> 221           is emulated, and therefore it is not completely atomic.
                                                   >> 222 
                                                   >> 223 # Makefile helpers
                                                   >> 224 config SPARC32_SMP
                                                   >> 225         bool
106         default y                                 226         default y
107         help                                   !! 227         depends on SPARC32 && SMP
108           Select this if your implementation h << 
109                                                   228 
110 config OPENRISC_HAVE_INST_MUL                  !! 229 config SPARC64_SMP
111         bool "Have instruction l.mul for hardw !! 230         bool
112         default y                                 231         default y
113         help                                   !! 232         depends on SPARC64 && SMP
114           Select this if your implementation h << 
115                                                   233 
116 config OPENRISC_HAVE_INST_DIV                  !! 234 config EARLYFB
117         bool "Have instruction l.div for hardw !! 235         bool "Support for early boot text console"
118         default y                                 236         default y
                                                   >> 237         depends on SPARC64
119         help                                      238         help
120           Select this if your implementation h !! 239           Say Y here to enable a faster early framebuffer boot console.
121                                                   240 
122 config OPENRISC_HAVE_INST_CMOV                 !! 241 config SECCOMP
123         bool "Have instruction l.cmov for cond !! 242         bool "Enable seccomp to safely compute untrusted bytecode"
124         default n                              !! 243         depends on SPARC64 && PROC_FS
                                                   >> 244         default y
                                                   >> 245         help
                                                   >> 246           This kernel feature is useful for number crunching applications
                                                   >> 247           that may need to compute untrusted bytecode during their
                                                   >> 248           execution. By using pipes or other transports made available to
                                                   >> 249           the process as file descriptors supporting the read/write
                                                   >> 250           syscalls, it's possible to isolate those applications in
                                                   >> 251           their own address space using seccomp. Once seccomp is
                                                   >> 252           enabled via /proc/<pid>/seccomp, it cannot be disabled
                                                   >> 253           and the task is only allowed to execute a few safe syscalls
                                                   >> 254           defined by each seccomp mode.
                                                   >> 255 
                                                   >> 256           If unsure, say Y. Only embedded should say N here.
                                                   >> 257 
                                                   >> 258 config HOTPLUG_CPU
                                                   >> 259         bool "Support for hot-pluggable CPUs"
                                                   >> 260         depends on SPARC64 && SMP
                                                   >> 261         help
                                                   >> 262           Say Y here to experiment with turning CPUs off and on.  CPUs
                                                   >> 263           can be controlled through /sys/devices/system/cpu/cpu#.
                                                   >> 264           Say N if you want to disable CPU hotplug.
                                                   >> 265 
                                                   >> 266 if SPARC64
                                                   >> 267 source "drivers/cpufreq/Kconfig"
                                                   >> 268 endif
                                                   >> 269 
                                                   >> 270 config US3_MC
                                                   >> 271         tristate "UltraSPARC-III Memory Controller driver"
                                                   >> 272         depends on SPARC64
                                                   >> 273         default y
125         help                                      274         help
126           This config enables gcc to generate  !! 275           This adds a driver for the UltraSPARC-III memory controller.
127           the kernel which in general will imp !! 276           Loading this driver allows exact mnemonic strings to be
128           binary size.                         !! 277           printed in the event of a memory error, so that the faulty DIMM
                                                   >> 278           on the motherboard can be matched to the error.
                                                   >> 279 
                                                   >> 280           If in doubt, say Y, as this information can be very useful.
                                                   >> 281 
                                                   >> 282 # Global things across all Sun machines.
                                                   >> 283 config GENERIC_LOCKBREAK
                                                   >> 284         bool
                                                   >> 285         default y
                                                   >> 286         depends on SPARC64 && SMP && PREEMPT
129                                                   287 
130           Select this if your implementation h !! 288 config NUMA
131           l.cmov conistional move instruction. !! 289         bool "NUMA support"
                                                   >> 290         depends on SPARC64 && SMP
                                                   >> 291 
                                                   >> 292 config NODES_SHIFT
                                                   >> 293         int "Maximum NUMA Nodes (as a power of 2)"
                                                   >> 294         range 4 5 if SPARC64
                                                   >> 295         default "5"
                                                   >> 296         depends on NEED_MULTIPLE_NODES
                                                   >> 297         help
                                                   >> 298           Specify the maximum number of NUMA Nodes available on the target
                                                   >> 299           system.  Increases memory reserved to accommodate various tables.
                                                   >> 300 
                                                   >> 301 # Some NUMA nodes have memory ranges that span
                                                   >> 302 # other nodes.  Even though a pfn is valid and
                                                   >> 303 # between a node's start and end pfns, it may not
                                                   >> 304 # reside on that node.  See memmap_init_zone()
                                                   >> 305 # for details.
                                                   >> 306 config NODES_SPAN_OTHER_NODES
                                                   >> 307         def_bool y
                                                   >> 308         depends on NEED_MULTIPLE_NODES
132                                                   309 
133           Say N if you are unsure.             !! 310 config ARCH_SELECT_MEMORY_MODEL
                                                   >> 311         def_bool y if SPARC64
134                                                   312 
135 config OPENRISC_HAVE_INST_ROR                  !! 313 config ARCH_SPARSEMEM_ENABLE
136         bool "Have instruction l.ror for rotat !! 314         def_bool y if SPARC64
137         default n                              !! 315         select SPARSEMEM_VMEMMAP_ENABLE
138         help                                   << 
139           This config enables gcc to generate  << 
140           the kernel which in general will imp << 
141           binary size.                         << 
142                                                   316 
143           Select this if your implementation h !! 317 config ARCH_SPARSEMEM_DEFAULT
144           l.ror rotate right instruction.      !! 318         def_bool y if SPARC64
145                                                   319 
146           Say N if you are unsure.             !! 320 config FORCE_MAX_ZONEORDER
147                                                !! 321         int "Maximum zone order"
148 config OPENRISC_HAVE_INST_RORI                 !! 322         default "13"
149         bool "Have instruction l.rori for rota << 
150         default n                              << 
151         help                                      323         help
152           This config enables gcc to generate  !! 324           The kernel memory allocator divides physically contiguous memory
153           the kernel which in general will imp !! 325           blocks into "zones", where each zone is a power of two number of
154           binary size.                         !! 326           pages.  This option selects the largest power of two that the kernel
                                                   >> 327           keeps in the memory allocator.  If you need to allocate very large
                                                   >> 328           blocks of physically contiguous memory, then you may need to
                                                   >> 329           increase this value.
                                                   >> 330 
                                                   >> 331           This config option is actually maximum order plus one. For example,
                                                   >> 332           a value of 13 means that the largest free memory block is 2^12 pages.
155                                                   333 
156           Select this if your implementation h !! 334 source "mm/Kconfig"
157           l.rori rotate right with immediate i << 
158                                                   335 
159           Say N if you are unsure.             !! 336 if SPARC64
                                                   >> 337 source "kernel/power/Kconfig"
                                                   >> 338 endif
160                                                   339 
161 config OPENRISC_HAVE_INST_SEXT                 !! 340 config SCHED_SMT
162         bool "Have instructions l.ext* for sig !! 341         bool "SMT (Hyperthreading) scheduler support"
163         default n                              !! 342         depends on SPARC64 && SMP
                                                   >> 343         default y
164         help                                      344         help
165           This config enables gcc to generate  !! 345           SMT scheduler support improves the CPU scheduler's decision making
166           the kernel which in general will imp !! 346           when dealing with SPARC cpus at a cost of slightly increased overhead
167           binary size.                         !! 347           in some places. If unsure say N here.
                                                   >> 348 
                                                   >> 349 config SCHED_MC
                                                   >> 350         bool "Multi-core scheduler support"
                                                   >> 351         depends on SPARC64 && SMP
                                                   >> 352         default y
                                                   >> 353         help
                                                   >> 354           Multi-core scheduler support improves the CPU scheduler's decision
                                                   >> 355           making when dealing with multi-core CPU chips at a cost of slightly
                                                   >> 356           increased overhead in some places. If unsure say N here.
                                                   >> 357 
                                                   >> 358 source "kernel/Kconfig.preempt"
                                                   >> 359 
                                                   >> 360 config CMDLINE_BOOL
                                                   >> 361         bool "Default bootloader kernel arguments"
                                                   >> 362         depends on SPARC64
168                                                   363 
169           Select this if your implementation h !! 364 config CMDLINE
170           l.exths, l.extbs, l.exthz and l.extb !! 365         string "Initial kernel command string"
                                                   >> 366         depends on CMDLINE_BOOL
                                                   >> 367         default "console=ttyS0,9600 root=/dev/sda1"
                                                   >> 368         help
                                                   >> 369           Say Y here if you want to be able to pass default arguments to
                                                   >> 370           the kernel. This will be overridden by the bootloader, if you
                                                   >> 371           use one (such as SILO). This is most useful if you want to boot
                                                   >> 372           a kernel from TFTP, and want default options to be available
                                                   >> 373           with having them passed on the command line.
                                                   >> 374 
                                                   >> 375           NOTE: This option WILL override the PROM bootargs setting!
                                                   >> 376 
                                                   >> 377 config SUN_PM
                                                   >> 378         bool
                                                   >> 379         default y if SPARC32
                                                   >> 380         help
                                                   >> 381           Enable power management and CPU standby features on supported
                                                   >> 382           SPARC platforms.
                                                   >> 383 
                                                   >> 384 config SPARC_LED
                                                   >> 385         tristate "Sun4m LED driver"
                                                   >> 386         depends on SPARC32
                                                   >> 387         help
                                                   >> 388           This driver toggles the front-panel LED on sun4m systems
                                                   >> 389           in a user-specifiable manner.  Its state can be probed
                                                   >> 390           by reading /proc/led and its blinking mode can be changed
                                                   >> 391           via writes to /proc/led
                                                   >> 392 
                                                   >> 393 config SERIAL_CONSOLE
                                                   >> 394         bool
                                                   >> 395         depends on SPARC32
                                                   >> 396         default y
                                                   >> 397         ---help---
                                                   >> 398           If you say Y here, it will be possible to use a serial port as the
                                                   >> 399           system console (the system console is the device which receives all
                                                   >> 400           kernel messages and warnings and which allows logins in single user
                                                   >> 401           mode). This could be useful if some terminal or printer is connected
                                                   >> 402           to that serial port.
                                                   >> 403 
                                                   >> 404           Even if you say Y here, the currently visible virtual console
                                                   >> 405           (/dev/tty0) will still be used as the system console by default, but
                                                   >> 406           you can alter that using a kernel command line option such as
                                                   >> 407           "console=ttyS1". (Try "man bootparam" or see the documentation of
                                                   >> 408           your boot loader (silo) about how to pass options to the kernel at
                                                   >> 409           boot time.)
                                                   >> 410 
                                                   >> 411           If you don't have a graphics card installed and you say Y here, the
                                                   >> 412           kernel will automatically use the first serial line, /dev/ttyS0, as
                                                   >> 413           system console.
                                                   >> 414 
                                                   >> 415           If unsure, say N.
                                                   >> 416 
                                                   >> 417 config SPARC_LEON
                                                   >> 418         bool "Sparc Leon processor family"
                                                   >> 419         depends on SPARC32
                                                   >> 420         select USB_EHCI_BIG_ENDIAN_MMIO
                                                   >> 421         select USB_EHCI_BIG_ENDIAN_DESC
                                                   >> 422         select USB_UHCI_BIG_ENDIAN_MMIO
                                                   >> 423         select USB_UHCI_BIG_ENDIAN_DESC
                                                   >> 424         ---help---
                                                   >> 425           If you say Y here if you are running on a SPARC-LEON processor.
                                                   >> 426           The LEON processor is a synthesizable VHDL model of the
                                                   >> 427           SPARC-v8 standard. LEON is  part of the GRLIB collection of
                                                   >> 428           IP cores that are distributed under GPL. GRLIB can be downloaded
                                                   >> 429           from www.gaisler.com. You can download a sparc-linux cross-compilation
                                                   >> 430           toolchain at www.gaisler.com.
                                                   >> 431 
                                                   >> 432 if SPARC_LEON
                                                   >> 433 menu "U-Boot options"
                                                   >> 434 
                                                   >> 435 config UBOOT_LOAD_ADDR
                                                   >> 436         hex "uImage Load Address"
                                                   >> 437         default 0x40004000
                                                   >> 438         ---help---
                                                   >> 439          U-Boot kernel load address, the address in physical address space
                                                   >> 440          where u-boot will place the Linux kernel before booting it.
                                                   >> 441          This address is normally the base address of main memory + 0x4000.
                                                   >> 442 
                                                   >> 443 config UBOOT_FLASH_ADDR
                                                   >> 444         hex "uImage.o Load Address"
                                                   >> 445         default 0x00080000
                                                   >> 446         ---help---
                                                   >> 447          Optional setting only affecting the uImage.o ELF-image used to
                                                   >> 448          download the uImage file to the target using a ELF-loader other than
                                                   >> 449          U-Boot. It may for example be used to download an uImage to FLASH with
                                                   >> 450          the GRMON utility before even starting u-boot.
                                                   >> 451 
                                                   >> 452 config UBOOT_ENTRY_ADDR
                                                   >> 453         hex "uImage Entry Address"
                                                   >> 454         default 0xf0004000
                                                   >> 455         ---help---
                                                   >> 456          Do not change this unless you know what you're doing. This is
                                                   >> 457          hardcoded by the SPARC32 and LEON port.
171                                                   458 
172           Say N if you are unsure.             !! 459          This is the virtual address u-boot jumps to when booting the Linux
                                                   >> 460          Kernel.
173                                                   461 
174 endmenu                                           462 endmenu
                                                   >> 463 endif
175                                                   464 
176 config NR_CPUS                                 !! 465 endmenu
177         int "Maximum number of CPUs (2-32)"    << 
178         range 2 32                             << 
179         depends on SMP                         << 
180         default "2"                            << 
181                                                << 
182 config SMP                                     << 
183         bool "Symmetric Multi-Processing suppo << 
184         help                                   << 
185           This enables support for systems wit << 
186           a system with only one CPU, say N. I << 
187           than one CPU, say Y.                 << 
188                                                   466 
189           If you don't know what to do here, s !! 467 menu "Bus options (PCI etc.)"
                                                   >> 468 config SBUS
                                                   >> 469         bool
                                                   >> 470         default y
190                                                   471 
191 config FPU                                     !! 472 config SBUSCHAR
192         bool "FPU support"                     !! 473         bool
193         default y                                 474         default y
194         help                                   << 
195           Say N here if you want to disable al << 
196           in the kernel and reduce binary size << 
197                                                   475 
198           If you don't know what to do here, s !! 476 config SUN_LDOMS
                                                   >> 477         bool "Sun Logical Domains support"
                                                   >> 478         depends on SPARC64
                                                   >> 479         help
                                                   >> 480           Say Y here is you want to support virtual devices via
                                                   >> 481           Logical Domains.
                                                   >> 482 
                                                   >> 483 config PCI
                                                   >> 484         bool "Support for PCI and PS/2 keyboard/mouse"
                                                   >> 485         help
                                                   >> 486           Find out whether your system includes a PCI bus. PCI is the name of
                                                   >> 487           a bus system, i.e. the way the CPU talks to the other stuff inside
                                                   >> 488           your box.  If you say Y here, the kernel will include drivers and
                                                   >> 489           infrastructure code to support PCI bus devices.
                                                   >> 490 
                                                   >> 491           CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
                                                   >> 492           CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
                                                   >> 493           All of these platforms are extremely obscure, so say N if unsure.
                                                   >> 494 
                                                   >> 495 config PCI_DOMAINS
                                                   >> 496         def_bool PCI if SPARC64
                                                   >> 497 
                                                   >> 498 config PCI_SYSCALL
                                                   >> 499         def_bool PCI
                                                   >> 500 
                                                   >> 501 config PCIC_PCI
                                                   >> 502         bool
                                                   >> 503         depends on PCI && SPARC32 && !SPARC_LEON
                                                   >> 504         default y
199                                                   505 
200 source "kernel/Kconfig.hz"                     !! 506 config LEON_PCI
                                                   >> 507         bool
                                                   >> 508         depends on PCI && SPARC_LEON
                                                   >> 509         default y
201                                                   510 
202 config OPENRISC_NO_SPR_SR_DSX                  !! 511 config SPARC_GRPCI1
203         bool "use SPR_SR_DSX software emulatio !! 512         bool "GRPCI Host Bridge Support"
                                                   >> 513         depends on LEON_PCI
204         default y                                 514         default y
205         help                                      515         help
206           SPR_SR_DSX bit is status register bi !! 516           Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
207           the last exception has happened in d !! 517           PCI host controller is typically found in GRLIB SPARC32/LEON
                                                   >> 518           systems. The driver has one property (all_pci_errors) controlled
                                                   >> 519           from the bootloader that makes the GRPCI to generate interrupts
                                                   >> 520           on detected PCI Parity and System errors.
                                                   >> 521 
                                                   >> 522 config SPARC_GRPCI2
                                                   >> 523         bool "GRPCI2 Host Bridge Support"
                                                   >> 524         depends on LEON_PCI
                                                   >> 525         default y
                                                   >> 526         help
                                                   >> 527           Say Y here to include the GRPCI2 Host Bridge Driver.
208                                                   528 
209           OpenRISC architecture makes it optio !! 529 source "drivers/pci/Kconfig"
210           in hardware and the OR1200 does not  << 
211                                                   530 
212           Say N here if you know that your Ope !! 531 source "drivers/pcmcia/Kconfig"
213           SPR_SR_DSX bit implemented. Say Y if << 
214                                                   532 
215 config OPENRISC_HAVE_SHADOW_GPRS               !! 533 config SUN_OPENPROMFS
216         bool "Support for shadow gpr files" if !! 534         tristate "Openprom tree appears in /proc/openprom"
217         default y if SMP                       << 
218         help                                      535         help
219           Say Y here if your OpenRISC processo !! 536           If you say Y, the OpenPROM device tree will be available as a
220           register files. They will in such ca !! 537           virtual file system, which you can mount to /proc/openprom by "mount
221           scratch reg storage on exception ent !! 538           -t openpromfs none /proc/openprom".
222                                                   539 
223           On SMP systems, this feature is mand !! 540           To compile the /proc/openprom support as a module, choose M here: the
224           On a unicore system it's safe to say !! 541           module will be called openpromfs.
225                                                   542 
226 config CMDLINE                                 !! 543           Only choose N if you know in advance that you will not need to modify
227         string "Default kernel command string" !! 544           OpenPROM settings on the running system.
228         default ""                             << 
229         help                                   << 
230           On some architectures there is curre << 
231           to pass arguments to the kernel. For << 
232           supply some command-line options at  << 
233           here.                                << 
234                                                   545 
235 menu "Debugging options"                       !! 546 # Makefile helpers
                                                   >> 547 config SPARC64_PCI
                                                   >> 548         bool
                                                   >> 549         default y
                                                   >> 550         depends on SPARC64 && PCI
236                                                   551 
237 config JUMP_UPON_UNHANDLED_EXCEPTION           !! 552 config SPARC64_PCI_MSI
238         bool "Try to die gracefully"           !! 553         bool
239         default y                                 554         default y
240         help                                   !! 555         depends on SPARC64_PCI && PCI_MSI
241           Now this puts kernel into infinite l << 
242           your kernel crashes this doesn't hav << 
243                                                   556 
244           Say Y if you are unsure.             !! 557 endmenu
245                                                   558 
246 config OPENRISC_ESR_EXCEPTION_BUG_CHECK        !! 559 menu "Executable file formats"
247         bool "Check for possible ESR exception << 
248         default n                              << 
249         help                                   << 
250           This option enables some checks that << 
251           in kernel.                           << 
252                                                   560 
253           Say N if you are unsure.             !! 561 source "fs/Kconfig.binfmt"
254                                                   562 
255 endmenu                                        !! 563 config COMPAT
                                                   >> 564         bool
                                                   >> 565         depends on SPARC64
                                                   >> 566         default y
                                                   >> 567         select COMPAT_BINFMT_ELF
                                                   >> 568         select HAVE_UID16
                                                   >> 569         select ARCH_WANT_OLD_COMPAT_IPC
                                                   >> 570         select COMPAT_OLD_SIGACTION
                                                   >> 571 
                                                   >> 572 config SYSVIPC_COMPAT
                                                   >> 573         bool
                                                   >> 574         depends on COMPAT && SYSVIPC
                                                   >> 575         default y
256                                                   576 
257 endmenu                                           577 endmenu
                                                   >> 578 
                                                   >> 579 source "net/Kconfig"
                                                   >> 580 
                                                   >> 581 source "drivers/Kconfig"
                                                   >> 582 
                                                   >> 583 source "drivers/sbus/char/Kconfig"
                                                   >> 584 
                                                   >> 585 source "fs/Kconfig"
                                                   >> 586 
                                                   >> 587 source "arch/sparc/Kconfig.debug"
                                                   >> 588 
                                                   >> 589 source "security/Kconfig"
                                                   >> 590 
                                                   >> 591 source "crypto/Kconfig"
                                                   >> 592 
                                                   >> 593 source "lib/Kconfig"
                                                      

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