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Linux/arch/openrisc/Kconfig

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Diff markup

Differences between /arch/openrisc/Kconfig (Version linux-6.12-rc7) and /arch/sparc/Kconfig (Version linux-5.7.19)


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

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