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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-5.16.20)


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

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