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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-5.6.19)


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

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