1 # SPDX-License-Identifier: GPL-2.0-only 1 # SPDX-License-Identifier: GPL-2.0-only
2 config MICROBLAZE !! 2 config 64BIT
3 def_bool y !! 3 bool "64-bit kernel" if "$(ARCH)" = "sparc"
>> 4 default "$(ARCH)" = "sparc64"
>> 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.
>> 9
>> 10 Say yes to build a 64-bit kernel - formerly known as sparc64
>> 11 Say no to build a 32-bit kernel - formerly known as sparc
>> 12
>> 13 config SPARC
>> 14 bool
>> 15 default y
>> 16 select ARCH_HAS_CPU_CACHE_ALIASING
>> 17 select ARCH_HAS_DMA_OPS
>> 18 select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
>> 19 select ARCH_MIGHT_HAVE_PC_SERIO
>> 20 select OF
>> 21 select OF_PROMTREE
>> 22 select HAVE_ASM_MODVERSIONS
>> 23 select HAVE_ARCH_KGDB if !SMP || SPARC64
>> 24 select HAVE_ARCH_TRACEHOOK
>> 25 select HAVE_ARCH_SECCOMP if SPARC64
>> 26 select HAVE_EXIT_THREAD
>> 27 select HAVE_PCI
>> 28 select SYSCTL_EXCEPTION_TRACE
>> 29 select RTC_CLASS
>> 30 select RTC_DRV_M48T59
>> 31 select RTC_SYSTOHC
>> 32 select HAVE_ARCH_JUMP_LABEL if SPARC64
>> 33 select GENERIC_IRQ_SHOW
>> 34 select ARCH_WANT_IPC_PARSE_VERSION
>> 35 select GENERIC_PCI_IOMAP
>> 36 select HAS_IOPORT
>> 37 select HAVE_HARDLOCKUP_DETECTOR_SPARC64 if SPARC64
>> 38 select HAVE_CBPF_JIT if SPARC32
>> 39 select HAVE_EBPF_JIT if SPARC64
>> 40 select HAVE_DEBUG_BUGVERBOSE
>> 41 select GENERIC_SMP_IDLE_THREAD
>> 42 select MODULES_USE_ELF_RELA
>> 43 select PCI_SYSCALL if PCI
>> 44 select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
>> 45 select ODD_RT_SIGACTION
>> 46 select OLD_SIGSUSPEND
>> 47 select CPU_NO_EFFICIENT_FFS
>> 48 select LOCKDEP_SMALL if LOCKDEP
>> 49 select NEED_DMA_MAP_STATE
>> 50 select NEED_SG_DMA_LENGTH
>> 51 select TRACE_IRQFLAGS_SUPPORT
>> 52
>> 53 config SPARC32
>> 54 def_bool !64BIT
4 select ARCH_32BIT_OFF_T 55 select ARCH_32BIT_OFF_T
5 select ARCH_NO_SWAP !! 56 select ARCH_HAS_CPU_FINALIZE_INIT if !SMP
6 select ARCH_HAS_DMA_PREP_COHERENT <<
7 select ARCH_HAS_GCOV_PROFILE_ALL <<
8 select ARCH_HAS_SYNC_DMA_FOR_CPU 57 select ARCH_HAS_SYNC_DMA_FOR_CPU
9 select ARCH_HAS_SYNC_DMA_FOR_DEVICE !! 58 select CLZ_TAB
10 select ARCH_MIGHT_HAVE_PC_PARPORT <<
11 select ARCH_WANT_IPC_PARSE_VERSION <<
12 select BUILDTIME_TABLE_SORT <<
13 select TIMER_OF <<
14 select CLONE_BACKWARDS3 <<
15 select COMMON_CLK <<
16 select DMA_DIRECT_REMAP 59 select DMA_DIRECT_REMAP
17 select GENERIC_ATOMIC64 60 select GENERIC_ATOMIC64
18 select GENERIC_CPU_DEVICES !! 61 select GENERIC_LIB_CMPDI2
19 select GENERIC_IDLE_POLL_SETUP !! 62 select GENERIC_LIB_UCMPDI2
20 select GENERIC_IRQ_PROBE !! 63 select HAVE_UID16
21 select GENERIC_IRQ_SHOW !! 64 select HAVE_PAGE_SIZE_4KB
22 select GENERIC_PCI_IOMAP !! 65 select LOCK_MM_AND_FIND_VMA
23 select GENERIC_SCHED_CLOCK !! 66 select OLD_SIGACTION
24 select HAS_IOPORT if PCI !! 67 select ZONE_DMA
25 select HAVE_ARCH_HASH !! 68
26 select HAVE_ARCH_KGDB !! 69 config SPARC64
27 select HAVE_ARCH_SECCOMP !! 70 def_bool 64BIT
28 select HAVE_DEBUG_KMEMLEAK !! 71 select ALTERNATE_USER_ADDRESS_SPACE
29 select HAVE_DMA_CONTIGUOUS !! 72 select HAVE_FUNCTION_TRACER
>> 73 select HAVE_FUNCTION_GRAPH_TRACER
>> 74 select HAVE_KRETPROBES
>> 75 select HAVE_KPROBES
>> 76 select MMU_GATHER_RCU_TABLE_FREE if SMP
>> 77 select MMU_GATHER_MERGE_VMAS
>> 78 select MMU_GATHER_NO_FLUSH_CACHE
>> 79 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
30 select HAVE_DYNAMIC_FTRACE 80 select HAVE_DYNAMIC_FTRACE
31 select HAVE_FTRACE_MCOUNT_RECORD 81 select HAVE_FTRACE_MCOUNT_RECORD
32 select HAVE_FUNCTION_GRAPH_TRACER !! 82 select HAVE_PAGE_SIZE_8KB
33 select HAVE_FUNCTION_TRACER !! 83 select HAVE_SYSCALL_TRACEPOINTS
34 select HAVE_PAGE_SIZE_4KB !! 84 select HAVE_CONTEXT_TRACKING_USER
35 select HAVE_PCI !! 85 select HAVE_TIF_NOHZ
36 select IRQ_DOMAIN !! 86 select HAVE_DEBUG_KMEMLEAK
37 select XILINX_INTC !! 87 select IOMMU_HELPER
38 select MODULES_USE_ELF_RELA <<
39 select OF <<
40 select OF_EARLY_FLATTREE <<
41 select PCI_DOMAINS_GENERIC if PCI <<
42 select PCI_SYSCALL if PCI <<
43 select CPU_NO_EFFICIENT_FFS <<
44 select MMU_GATHER_NO_RANGE <<
45 select SPARSE_IRQ 88 select SPARSE_IRQ
46 select ZONE_DMA !! 89 select RTC_DRV_CMOS
47 select TRACE_IRQFLAGS_SUPPORT !! 90 select RTC_DRV_BQ4802
48 select GENERIC_IRQ_MULTI_HANDLER !! 91 select RTC_DRV_SUN4V
>> 92 select RTC_DRV_STARFIRE
>> 93 select HAVE_PERF_EVENTS
>> 94 select PERF_USE_VMALLOC
>> 95 select ARCH_HAVE_NMI_SAFE_CMPXCHG
>> 96 select HAVE_C_RECORDMCOUNT
>> 97 select HAVE_ARCH_AUDITSYSCALL
>> 98 select ARCH_SUPPORTS_ATOMIC_RMW
>> 99 select ARCH_SUPPORTS_DEBUG_PAGEALLOC
>> 100 select HAVE_NMI
>> 101 select HAVE_REGS_AND_STACK_ACCESS_API
>> 102 select ARCH_USE_QUEUED_RWLOCKS
>> 103 select ARCH_USE_QUEUED_SPINLOCKS
>> 104 select GENERIC_TIME_VSYSCALL
>> 105 select ARCH_CLOCKSOURCE_DATA
>> 106 select ARCH_HAS_PTE_SPECIAL
>> 107 select PCI_DOMAINS if PCI
>> 108 select ARCH_HAS_GIGANTIC_PAGE
>> 109 select HAVE_SOFTIRQ_ON_OWN_STACK
>> 110 select HAVE_SETUP_PER_CPU_AREA
>> 111 select NEED_PER_CPU_EMBED_FIRST_CHUNK
>> 112 select NEED_PER_CPU_PAGE_FIRST_CHUNK
49 113
50 # Endianness selection !! 114 config ARCH_PROC_KCORE_TEXT
51 choice !! 115 def_bool y
52 prompt "Endianness selection" <<
53 default CPU_LITTLE_ENDIAN <<
54 help <<
55 microblaze architectures can be conf <<
56 big endian formats. Be sure to selec <<
57 116
58 config CPU_BIG_ENDIAN 117 config CPU_BIG_ENDIAN
59 bool "Big endian" !! 118 def_bool y
60 119
61 config CPU_LITTLE_ENDIAN !! 120 config STACKTRACE_SUPPORT
62 bool "Little endian" !! 121 bool
>> 122 default y if SPARC64
63 123
64 endchoice !! 124 config LOCKDEP_SUPPORT
>> 125 bool
>> 126 default y if SPARC64
65 127
66 config ARCH_HAS_ILOG2_U32 !! 128 config ARCH_HIBERNATION_POSSIBLE
67 def_bool n !! 129 def_bool y if SPARC64
68 130
69 config ARCH_HAS_ILOG2_U64 !! 131 config AUDIT_ARCH
70 def_bool n !! 132 bool
>> 133 default y
71 134
72 config GENERIC_HWEIGHT !! 135 config MMU
73 def_bool y !! 136 bool
>> 137 default y
74 138
75 config GENERIC_CALIBRATE_DELAY !! 139 config HIGHMEM
76 def_bool y !! 140 bool
>> 141 default y if SPARC32
>> 142 select KMAP_LOCAL
77 143
78 config GENERIC_CSUM !! 144 config PGTABLE_LEVELS
79 def_bool y !! 145 default 4 if 64BIT
>> 146 default 3
80 147
81 config STACKTRACE_SUPPORT !! 148 config ARCH_SUPPORTS_UPROBES
82 def_bool y !! 149 def_bool y if SPARC64
83 150
84 config LOCKDEP_SUPPORT !! 151 menu "Processor type and features"
85 def_bool y !! 152
>> 153 config SMP
>> 154 bool "Symmetric multi-processing support"
>> 155 help
>> 156 This enables support for systems with more than one CPU. If you have
>> 157 a system with only one CPU, say N. If you have a system with more
>> 158 than one CPU, say Y.
>> 159
>> 160 If you say N here, the kernel will run on uni- and multiprocessor
>> 161 machines, but will use only one CPU of a multiprocessor machine. If
>> 162 you say Y here, the kernel will run on many, but not all,
>> 163 uniprocessor machines. On a uniprocessor machine, the kernel
>> 164 will run faster if you say N here.
>> 165
>> 166 People using multiprocessor machines who say Y here should also say
>> 167 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
>> 168 Management" code will be disabled if you say Y here.
86 169
87 source "arch/microblaze/Kconfig.platform" !! 170 See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO
>> 171 available at <https://www.tldp.org/docs.html#howto>.
88 172
89 menu "Processor type and features" !! 173 If you don't know what to do here, say N.
>> 174
>> 175 config NR_CPUS
>> 176 int "Maximum number of CPUs"
>> 177 depends on SMP
>> 178 range 2 32 if SPARC32
>> 179 range 2 4096 if SPARC64
>> 180 default 32 if SPARC32
>> 181 default 4096 if SPARC64
90 182
91 source "kernel/Kconfig.hz" 183 source "kernel/Kconfig.hz"
92 184
93 config MMU !! 185 config GENERIC_HWEIGHT
94 def_bool y !! 186 bool
>> 187 default y
>> 188
>> 189 config GENERIC_CALIBRATE_DELAY
>> 190 bool
>> 191 default y
95 192
96 comment "Boot options" !! 193 config ARCH_MAY_HAVE_PC_FDC
>> 194 bool
>> 195 default y
>> 196
>> 197 config EMULATED_CMPXCHG
>> 198 bool
>> 199 default y if SPARC32
>> 200 help
>> 201 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
>> 202 is emulated, and therefore it is not completely atomic.
>> 203
>> 204 # Makefile helpers
>> 205 config SPARC32_SMP
>> 206 bool
>> 207 default y
>> 208 depends on SPARC32 && SMP
>> 209
>> 210 config SPARC64_SMP
>> 211 bool
>> 212 default y
>> 213 depends on SPARC64 && SMP
>> 214
>> 215 config EARLYFB
>> 216 bool "Support for early boot text console"
>> 217 default y
>> 218 depends on SPARC64
>> 219 select FONT_SUN8x16
>> 220 select FONT_SUPPORT
>> 221 help
>> 222 Say Y here to enable a faster early framebuffer boot console.
>> 223
>> 224 config HOTPLUG_CPU
>> 225 bool "Support for hot-pluggable CPUs"
>> 226 depends on SPARC64 && SMP
>> 227 help
>> 228 Say Y here to experiment with turning CPUs off and on. CPUs
>> 229 can be controlled through /sys/devices/system/cpu/cpu#.
>> 230 Say N if you want to disable CPU hotplug.
>> 231
>> 232 if SPARC64
>> 233 source "drivers/cpufreq/Kconfig"
>> 234 endif
>> 235
>> 236 config US3_MC
>> 237 tristate "UltraSPARC-III Memory Controller driver"
>> 238 depends on SPARC64
>> 239 default y
>> 240 help
>> 241 This adds a driver for the UltraSPARC-III memory controller.
>> 242 Loading this driver allows exact mnemonic strings to be
>> 243 printed in the event of a memory error, so that the faulty DIMM
>> 244 on the motherboard can be matched to the error.
>> 245
>> 246 If in doubt, say Y, as this information can be very useful.
>> 247
>> 248 # Global things across all Sun machines.
>> 249 config GENERIC_LOCKBREAK
>> 250 bool
>> 251 default y
>> 252 depends on SPARC64 && SMP && PREEMPTION
>> 253
>> 254 config NUMA
>> 255 bool "NUMA support"
>> 256 depends on SPARC64 && SMP
>> 257
>> 258 config NODES_SHIFT
>> 259 int "Maximum NUMA Nodes (as a power of 2)"
>> 260 range 4 5 if SPARC64
>> 261 default "5"
>> 262 depends on NUMA
>> 263 help
>> 264 Specify the maximum number of NUMA Nodes available on the target
>> 265 system. Increases memory reserved to accommodate various tables.
>> 266
>> 267 config ARCH_SPARSEMEM_ENABLE
>> 268 def_bool y if SPARC64
>> 269 select SPARSEMEM_VMEMMAP_ENABLE
>> 270
>> 271 config ARCH_SPARSEMEM_DEFAULT
>> 272 def_bool y if SPARC64
>> 273
>> 274 config ARCH_FORCE_MAX_ORDER
>> 275 int "Order of maximal physically contiguous allocations"
>> 276 default "12"
>> 277 help
>> 278 The kernel page allocator limits the size of maximal physically
>> 279 contiguous allocations. The limit is called MAX_PAGE_ORDER and it
>> 280 defines the maximal power of two of number of pages that can be
>> 281 allocated as a single contiguous block. This option allows
>> 282 overriding the default setting when ability to allocate very
>> 283 large blocks of physically contiguous memory is required.
>> 284
>> 285 Don't change if unsure.
>> 286
>> 287 if SPARC64 || COMPILE_TEST
>> 288 source "kernel/power/Kconfig"
>> 289 endif
>> 290
>> 291 config SCHED_SMT
>> 292 bool "SMT (Hyperthreading) scheduler support"
>> 293 depends on SPARC64 && SMP
>> 294 default y
>> 295 help
>> 296 SMT scheduler support improves the CPU scheduler's decision making
>> 297 when dealing with SPARC cpus at a cost of slightly increased overhead
>> 298 in some places. If unsure say N here.
>> 299
>> 300 config SCHED_MC
>> 301 bool "Multi-core scheduler support"
>> 302 depends on SPARC64 && SMP
>> 303 default y
>> 304 help
>> 305 Multi-core scheduler support improves the CPU scheduler's decision
>> 306 making when dealing with multi-core CPU chips at a cost of slightly
>> 307 increased overhead in some places. If unsure say N here.
97 308
98 config CMDLINE_BOOL 309 config CMDLINE_BOOL
99 bool "Default bootloader kernel argume 310 bool "Default bootloader kernel arguments"
>> 311 depends on SPARC64
100 312
101 config CMDLINE 313 config CMDLINE
102 string "Default kernel command string" !! 314 string "Initial kernel command string"
103 depends on CMDLINE_BOOL 315 depends on CMDLINE_BOOL
104 default "console=ttyUL0,115200" !! 316 default "console=ttyS0,9600 root=/dev/sda1"
105 help 317 help
106 On some architectures there is curre !! 318 Say Y here if you want to be able to pass default arguments to
107 to pass arguments to the kernel. For !! 319 the kernel. This will be overridden by the bootloader, if you
108 supply some command-line options at !! 320 use one (such as SILO). This is most useful if you want to boot
109 here. !! 321 a kernel from TFTP, and want default options to be available
>> 322 with having them passed on the command line.
>> 323
>> 324 NOTE: This option WILL override the PROM bootargs setting!
>> 325
>> 326 config SUN_PM
>> 327 bool
>> 328 default y if SPARC32
>> 329 help
>> 330 Enable power management and CPU standby features on supported
>> 331 SPARC platforms.
110 332
111 config CMDLINE_FORCE !! 333 config SPARC_LED
112 bool "Force default kernel command str !! 334 tristate "Sun4m LED driver"
113 depends on CMDLINE_BOOL !! 335 depends on SPARC32
114 default n !! 336 help
>> 337 This driver toggles the front-panel LED on sun4m systems
>> 338 in a user-specifiable manner. Its state can be probed
>> 339 by reading /proc/led and its blinking mode can be changed
>> 340 via writes to /proc/led
>> 341
>> 342 config SERIAL_CONSOLE
>> 343 bool
>> 344 depends on SPARC32
>> 345 default y
115 help 346 help
116 Set this to have arguments from the !! 347 If you say Y here, it will be possible to use a serial port as the
117 override those passed by the boot lo !! 348 system console (the system console is the device which receives all
>> 349 kernel messages and warnings and which allows logins in single user
>> 350 mode). This could be useful if some terminal or printer is connected
>> 351 to that serial port.
>> 352
>> 353 Even if you say Y here, the currently visible virtual console
>> 354 (/dev/tty0) will still be used as the system console by default, but
>> 355 you can alter that using a kernel command line option such as
>> 356 "console=ttyS1". (Try "man bootparam" or see the documentation of
>> 357 your boot loader (silo) about how to pass options to the kernel at
>> 358 boot time.)
>> 359
>> 360 If you don't have a graphics card installed and you say Y here, the
>> 361 kernel will automatically use the first serial line, /dev/ttyS0, as
>> 362 system console.
>> 363
>> 364 If unsure, say N.
>> 365
>> 366 config SPARC_LEON
>> 367 bool "Sparc Leon processor family"
>> 368 depends on SPARC32
>> 369 select USB_EHCI_BIG_ENDIAN_MMIO
>> 370 select USB_EHCI_BIG_ENDIAN_DESC
>> 371 select USB_UHCI_BIG_ENDIAN_MMIO
>> 372 select USB_UHCI_BIG_ENDIAN_DESC
>> 373 help
>> 374 If you say Y here if you are running on a SPARC-LEON processor.
>> 375 The LEON processor is a synthesizable VHDL model of the
>> 376 SPARC-v8 standard. LEON is part of the GRLIB collection of
>> 377 IP cores that are distributed under GPL. GRLIB can be downloaded
>> 378 from www.gaisler.com. You can download a sparc-linux cross-compilation
>> 379 toolchain at www.gaisler.com.
>> 380
>> 381 if SPARC_LEON
>> 382 menu "U-Boot options"
>> 383
>> 384 config UBOOT_LOAD_ADDR
>> 385 hex "uImage Load Address"
>> 386 default 0x40004000
>> 387 help
>> 388 U-Boot kernel load address, the address in physical address space
>> 389 where u-boot will place the Linux kernel before booting it.
>> 390 This address is normally the base address of main memory + 0x4000.
>> 391
>> 392 config UBOOT_FLASH_ADDR
>> 393 hex "uImage.o Load Address"
>> 394 default 0x00080000
>> 395 help
>> 396 Optional setting only affecting the uImage.o ELF-image used to
>> 397 download the uImage file to the target using a ELF-loader other than
>> 398 U-Boot. It may for example be used to download an uImage to FLASH with
>> 399 the GRMON utility before even starting u-boot.
>> 400
>> 401 config UBOOT_ENTRY_ADDR
>> 402 hex "uImage Entry Address"
>> 403 default 0xf0004000
>> 404 help
>> 405 Do not change this unless you know what you're doing. This is
>> 406 hardcoded by the SPARC32 and LEON port.
118 407
119 endmenu !! 408 This is the virtual address u-boot jumps to when booting the Linux
>> 409 Kernel.
120 410
121 menu "Kernel features" !! 411 endmenu
>> 412 endif
122 413
123 config NR_CPUS !! 414 endmenu
124 int <<
125 default "1" <<
126 415
127 config ADVANCED_OPTIONS !! 416 menu "Bus options (PCI etc.)"
128 bool "Prompt for advanced kernel confi !! 417 config SBUS
>> 418 bool
>> 419 default y
>> 420
>> 421 config SBUSCHAR
>> 422 bool
>> 423 default y
>> 424
>> 425 config SUN_LDOMS
>> 426 bool "Sun Logical Domains support"
>> 427 depends on SPARC64
129 help 428 help
130 This option will enable prompting fo !! 429 Say Y here is you want to support virtual devices via
131 configuration options. These option !! 430 Logical Domains.
132 work if they are set incorrectly, bu <<
133 aspects of kernel memory management. <<
134 431
135 Unless you know what you are doing, !! 432 config PCIC_PCI
136 !! 433 bool
137 comment "Default settings for advanced configu !! 434 depends on PCI && SPARC32 && !SPARC_LEON
138 depends on !ADVANCED_OPTIONS !! 435 default y
139 !! 436
140 config HIGHMEM !! 437 config LEON_PCI
141 bool "High memory support" !! 438 bool
142 select KMAP_LOCAL !! 439 depends on PCI && SPARC_LEON
>> 440 default y
>> 441
>> 442 config SPARC_GRPCI1
>> 443 bool "GRPCI Host Bridge Support"
>> 444 depends on LEON_PCI
>> 445 default y
>> 446 help
>> 447 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
>> 448 PCI host controller is typically found in GRLIB SPARC32/LEON
>> 449 systems. The driver has one property (all_pci_errors) controlled
>> 450 from the bootloader that makes the GRPCI to generate interrupts
>> 451 on detected PCI Parity and System errors.
>> 452
>> 453 config SPARC_GRPCI2
>> 454 bool "GRPCI2 Host Bridge Support"
>> 455 depends on LEON_PCI
>> 456 default y
143 help 457 help
144 The address space of Microblaze proc !! 458 Say Y here to include the GRPCI2 Host Bridge Driver.
145 and it has to accommodate user addre <<
146 space as well as some memory mapped <<
147 have a large amount of physical memo <<
148 memory can be "permanently mapped" b <<
149 memory that is not permanently mappe <<
150 <<
151 If unsure, say n. <<
152 <<
153 config LOWMEM_SIZE_BOOL <<
154 bool "Set maximum low memory" <<
155 depends on ADVANCED_OPTIONS <<
156 help <<
157 This option allows you to set the ma <<
158 will be used as "low memory", that i <<
159 access directly, without having to s <<
160 This can be useful in optimizing the <<
161 memory. <<
162 <<
163 Say N here unless you know what you <<
164 <<
165 config LOWMEM_SIZE <<
166 hex "Maximum low memory size (in bytes <<
167 default "0x30000000" <<
168 <<
169 config MANUAL_RESET_VECTOR <<
170 hex "Microblaze reset vector address s <<
171 default "0x0" <<
172 help <<
173 Set this option to have the kernel o <<
174 If zero, no change will be made to t <<
175 address 0x0. <<
176 If non-zero, a jump instruction to t <<
177 to the reset vector at address 0x0. <<
178 If you are unsure, set it to default <<
179 <<
180 config KERNEL_START_BOOL <<
181 bool "Set custom kernel base address" <<
182 depends on ADVANCED_OPTIONS <<
183 help <<
184 This option allows you to set the ke <<
185 the kernel will map low memory (the <<
186 this address). This can be useful i <<
187 layout of the system. <<
188 <<
189 Say N here unless you know what you <<
190 <<
191 config KERNEL_START <<
192 hex "Virtual address of kernel base" i <<
193 default "0xc0000000" <<
194 <<
195 config TASK_SIZE_BOOL <<
196 bool "Set custom user task size" <<
197 depends on ADVANCED_OPTIONS <<
198 help <<
199 This option allows you to set the am <<
200 allocated to user tasks. This can b <<
201 virtual memory layout of the system. <<
202 <<
203 Say N here unless you know what you <<
204 <<
205 config TASK_SIZE <<
206 hex "Size of user task space" if TASK_ <<
207 default "0x80000000" <<
208 <<
209 config MB_MANAGER <<
210 bool "Support for Microblaze Manager" <<
211 depends on ADVANCED_OPTIONS <<
212 help <<
213 This option enables API for configur <<
214 control register, which is consumed <<
215 block the break. <<
216 459
217 Say N here unless you know what you !! 460 config SUN_OPENPROMFS
>> 461 tristate "Openprom tree appears in /proc/openprom"
>> 462 help
>> 463 If you say Y, the OpenPROM device tree will be available as a
>> 464 virtual file system, which you can mount to /proc/openprom by "mount
>> 465 -t openpromfs none /proc/openprom".
>> 466
>> 467 To compile the /proc/openprom support as a module, choose M here: the
>> 468 module will be called openpromfs.
>> 469
>> 470 Only choose N if you know in advance that you will not need to modify
>> 471 OpenPROM settings on the running system.
>> 472
>> 473 # Makefile helpers
>> 474 config SPARC64_PCI
>> 475 bool
>> 476 default y
>> 477 depends on SPARC64 && PCI
>> 478
>> 479 config SPARC64_PCI_MSI
>> 480 bool
>> 481 default y
>> 482 depends on SPARC64_PCI && PCI_MSI
218 483
219 endmenu 484 endmenu
>> 485
>> 486 config COMPAT
>> 487 bool
>> 488 depends on SPARC64
>> 489 default y
>> 490 select HAVE_UID16
>> 491 select ARCH_WANT_OLD_COMPAT_IPC
>> 492 select COMPAT_OLD_SIGACTION
>> 493
>> 494 source "drivers/sbus/char/Kconfig"
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