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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-5.3.18)


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

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