1 # SPDX-License-Identifier: GPL-2.0-only !! 1 config 64BIT
2 # !! 2 bool "64-bit kernel" if ARCH = "sparc"
3 # Copyright (C) 2004, 2007-2010, 2011-2012 Syn !! 3 default ARCH = "sparc64"
4 # !! 4 help
>> 5 SPARC is a family of RISC microprocessors designed and marketed by
>> 6 Sun Microsystems, incorporated. They are very widely found in Sun
>> 7 workstations and clones.
5 8
6 config ARC !! 9 Say yes to build a 64-bit kernel - formerly known as sparc64
7 def_bool y !! 10 Say no to build a 32-bit kernel - formerly known as sparc
8 select ARC_TIMERS !! 11
9 select ARCH_HAS_CACHE_LINE_SIZE !! 12 config SPARC
10 select ARCH_HAS_DEBUG_VM_PGTABLE !! 13 bool
11 select ARCH_HAS_DMA_PREP_COHERENT !! 14 default y
12 select ARCH_HAS_PTE_SPECIAL !! 15 select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
13 select ARCH_HAS_SETUP_DMA_OPS !! 16 select ARCH_MIGHT_HAVE_PC_SERIO
14 select ARCH_HAS_SYNC_DMA_FOR_CPU !! 17 select OF
15 select ARCH_HAS_SYNC_DMA_FOR_DEVICE !! 18 select OF_PROMTREE
16 select ARCH_NEED_CMPXCHG_1_EMU !! 19 select HAVE_IDE
17 select ARCH_SUPPORTS_ATOMIC_RMW if ARC !! 20 select HAVE_OPROFILE
18 select ARCH_32BIT_OFF_T !! 21 select HAVE_ARCH_KGDB if !SMP || SPARC64
19 select BUILDTIME_TABLE_SORT !! 22 select HAVE_ARCH_TRACEHOOK
20 select CLONE_BACKWARDS !! 23 select SYSCTL_EXCEPTION_TRACE
21 select COMMON_CLK !! 24 select ARCH_WANT_OPTIONAL_GPIOLIB
22 select DMA_DIRECT_REMAP !! 25 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
23 select GENERIC_ATOMIC64 if !ISA_ARCV2 !! 26 select RTC_CLASS
24 # for now, we don't need GENERIC_IRQ_P !! 27 select RTC_DRV_M48T59
>> 28 select RTC_SYSTOHC
>> 29 select HAVE_DMA_ATTRS
>> 30 select HAVE_DMA_API_DEBUG
>> 31 select HAVE_ARCH_JUMP_LABEL if SPARC64
25 select GENERIC_IRQ_SHOW 32 select GENERIC_IRQ_SHOW
>> 33 select ARCH_WANT_IPC_PARSE_VERSION
26 select GENERIC_PCI_IOMAP 34 select GENERIC_PCI_IOMAP
27 select GENERIC_PENDING_IRQ if SMP !! 35 select HAVE_NMI_WATCHDOG if SPARC64
28 select GENERIC_SCHED_CLOCK !! 36 select HAVE_BPF_JIT
>> 37 select HAVE_DEBUG_BUGVERBOSE
29 select GENERIC_SMP_IDLE_THREAD 38 select GENERIC_SMP_IDLE_THREAD
30 select GENERIC_IOREMAP !! 39 select GENERIC_CLOCKEVENTS
31 select GENERIC_STRNCPY_FROM_USER if MM !! 40 select GENERIC_STRNCPY_FROM_USER
32 select GENERIC_STRNLEN_USER if MMU !! 41 select GENERIC_STRNLEN_USER
33 select HAVE_ARCH_KGDB !! 42 select MODULES_USE_ELF_RELA
34 select HAVE_ARCH_TRACEHOOK !! 43 select ODD_RT_SIGACTION
35 select HAVE_ARCH_TRANSPARENT_HUGEPAGE !! 44 select OLD_SIGSUSPEND
36 select HAVE_DEBUG_STACKOVERFLOW !! 45 select ARCH_HAS_SG_CHAIN
37 select HAVE_DEBUG_KMEMLEAK !! 46
38 select HAVE_IOREMAP_PROT !! 47 config SPARC32
39 select HAVE_KERNEL_GZIP !! 48 def_bool !64BIT
40 select HAVE_KERNEL_LZMA !! 49 select GENERIC_ATOMIC64
41 select HAVE_KPROBES !! 50 select CLZ_TAB
>> 51 select HAVE_UID16
>> 52 select OLD_SIGACTION
>> 53
>> 54 config SPARC64
>> 55 def_bool 64BIT
>> 56 select HAVE_FUNCTION_TRACER
>> 57 select HAVE_FUNCTION_GRAPH_TRACER
>> 58 select HAVE_FUNCTION_GRAPH_FP_TEST
42 select HAVE_KRETPROBES 59 select HAVE_KRETPROBES
43 select HAVE_REGS_AND_STACK_ACCESS_API !! 60 select HAVE_KPROBES
44 select HAVE_MOD_ARCH_SPECIFIC !! 61 select HAVE_RCU_TABLE_FREE if SMP
45 select HAVE_PERF_EVENTS !! 62 select HAVE_MEMBLOCK
>> 63 select HAVE_MEMBLOCK_NODE_MAP
>> 64 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
>> 65 select HAVE_DYNAMIC_FTRACE
>> 66 select HAVE_FTRACE_MCOUNT_RECORD
46 select HAVE_SYSCALL_TRACEPOINTS 67 select HAVE_SYSCALL_TRACEPOINTS
47 select IRQ_DOMAIN !! 68 select HAVE_CONTEXT_TRACKING
48 select LOCK_MM_AND_FIND_VMA !! 69 select HAVE_DEBUG_KMEMLEAK
49 select MODULES_USE_ELF_RELA !! 70 select SPARSE_IRQ
50 select OF !! 71 select RTC_DRV_CMOS
51 select OF_EARLY_FLATTREE !! 72 select RTC_DRV_BQ4802
52 select PCI_SYSCALL if PCI !! 73 select RTC_DRV_SUN4V
53 select HAVE_ARCH_JUMP_LABEL if ISA_ARC !! 74 select RTC_DRV_STARFIRE
54 select TRACE_IRQFLAGS_SUPPORT !! 75 select HAVE_PERF_EVENTS
55 select HAVE_EBPF_JIT if ISA_ARCV2 !! 76 select PERF_USE_VMALLOC
>> 77 select IRQ_PREFLOW_FASTEOI
>> 78 select ARCH_HAVE_NMI_SAFE_CMPXCHG
>> 79 select HAVE_C_RECORDMCOUNT
>> 80 select NO_BOOTMEM
>> 81 select HAVE_ARCH_AUDITSYSCALL
>> 82 select ARCH_SUPPORTS_ATOMIC_RMW
>> 83
>> 84 config ARCH_DEFCONFIG
>> 85 string
>> 86 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
>> 87 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
56 88
57 config LOCKDEP_SUPPORT !! 89 config ARCH_PROC_KCORE_TEXT
58 def_bool y 90 def_bool y
59 91
60 config SCHED_OMIT_FRAME_POINTER !! 92 config IOMMU_HELPER
61 def_bool y !! 93 bool
>> 94 default y if SPARC64
62 95
63 config GENERIC_CSUM !! 96 config STACKTRACE_SUPPORT
64 def_bool y !! 97 bool
>> 98 default y if SPARC64
65 99
66 config ARCH_FLATMEM_ENABLE !! 100 config LOCKDEP_SUPPORT
67 def_bool y !! 101 bool
>> 102 default y if SPARC64
>> 103
>> 104 config HAVE_LATENCYTOP_SUPPORT
>> 105 bool
>> 106 default y if SPARC64
>> 107
>> 108 config ARCH_HIBERNATION_POSSIBLE
>> 109 def_bool y if SPARC64
>> 110
>> 111 config AUDIT_ARCH
>> 112 bool
>> 113 default y
>> 114
>> 115 config HAVE_SETUP_PER_CPU_AREA
>> 116 def_bool y if SPARC64
>> 117
>> 118 config NEED_PER_CPU_EMBED_FIRST_CHUNK
>> 119 def_bool y if SPARC64
>> 120
>> 121 config NEED_PER_CPU_PAGE_FIRST_CHUNK
>> 122 def_bool y if SPARC64
68 123
69 config MMU 124 config MMU
70 def_bool y !! 125 bool
>> 126 default y
71 127
72 config NO_IOPORT_MAP !! 128 config HIGHMEM
73 def_bool y !! 129 bool
>> 130 default y if SPARC32
74 131
75 config GENERIC_CALIBRATE_DELAY !! 132 config ZONE_DMA
76 def_bool y !! 133 bool
>> 134 default y if SPARC32
77 135
78 config GENERIC_HWEIGHT !! 136 config NEED_DMA_MAP_STATE
79 def_bool y 137 def_bool y
80 138
81 config STACKTRACE_SUPPORT !! 139 config NEED_SG_DMA_LENGTH
82 def_bool y 140 def_bool y
83 select STACKTRACE <<
84 141
85 menu "ARC Architecture Configuration" !! 142 config GENERIC_ISA_DMA
>> 143 bool
>> 144 default y if SPARC32
86 145
87 menu "ARC Platform/SoC/Board" !! 146 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
>> 147 def_bool y if SPARC64
88 148
89 source "arch/arc/plat-tb10x/Kconfig" !! 149 config PGTABLE_LEVELS
90 source "arch/arc/plat-axs10x/Kconfig" !! 150 default 4 if 64BIT
91 source "arch/arc/plat-hsdk/Kconfig" !! 151 default 3
92 152
93 endmenu !! 153 source "init/Kconfig"
94 154
95 choice !! 155 source "kernel/Kconfig.freezer"
96 prompt "ARC Instruction Set" <<
97 default ISA_ARCV2 <<
98 <<
99 config ISA_ARCOMPACT <<
100 bool "ARCompact ISA" <<
101 select CPU_NO_EFFICIENT_FFS <<
102 help <<
103 The original ARC ISA of ARC600/700 c <<
104 <<
105 config ISA_ARCV2 <<
106 bool "ARC ISA v2" <<
107 select ARC_TIMERS_64BIT <<
108 help <<
109 ISA for the Next Generation ARC-HS c <<
110 <<
111 endchoice <<
112 <<
113 menu "ARC CPU Configuration" <<
114 <<
115 choice <<
116 prompt "ARC Core" <<
117 default ARC_CPU_770 if ISA_ARCOMPACT <<
118 default ARC_CPU_HS if ISA_ARCV2 <<
119 <<
120 config ARC_CPU_770 <<
121 bool "ARC770" <<
122 depends on ISA_ARCOMPACT <<
123 select ARC_HAS_SWAPE <<
124 help <<
125 Support for ARC770 core introduced w <<
126 This core has a bunch of cool new fe <<
127 -MMU-v3: Variable Page Sz (4k, 8k, 1 <<
128 Shared Address Spaces (for <<
129 -Caches: New Prog Model, Region Flus <<
130 -Insns: endian swap, load-locked/sto <<
131 <<
132 config ARC_CPU_HS <<
133 bool "ARC-HS" <<
134 depends on ISA_ARCV2 <<
135 help <<
136 Support for ARC HS38x Cores based on <<
137 The notable features are: <<
138 - SMP configurations of up to 4 co <<
139 - Optional L2 Cache and IO-Coheren <<
140 - Revised Interrupt Architecture ( <<
141 auto stack switch, auto regfil <<
142 - MMUv4 (PIPT dcache, Huge Pages) <<
143 - Instructions for <<
144 * 64bit load/store: LDD, STD <<
145 * Hardware assisted divide/rem <<
146 * Function prologue/epilogue: <<
147 * IRQ enable/disable: CLRI, SE <<
148 * pop count: FFS, FLS <<
149 * SETcc, BMSKN, XBFU... <<
150 <<
151 endchoice <<
152 <<
153 config ARC_TUNE_MCPU <<
154 string "Override default -mcpu compile <<
155 default "" <<
156 help <<
157 Override default -mcpu=xxx compiler <<
158 the ISA version) with the specified <<
159 NOTE: If specified flag isn't suppor <<
160 ISA default value will be used as a <<
161 156
162 config CPU_BIG_ENDIAN !! 157 menu "Processor type and features"
163 bool "Enable Big Endian Mode" <<
164 help <<
165 Build kernel for Big Endian Mode of <<
166 158
167 config SMP 159 config SMP
168 bool "Symmetric Multi-Processing" !! 160 bool "Symmetric multi-processing support"
169 select ARC_MCIP if ISA_ARCV2 !! 161 ---help---
170 help !! 162 This enables support for systems with more than one CPU. If you have
171 This enables support for systems wit !! 163 a system with only one CPU, say N. If you have a system with more
>> 164 than one CPU, say Y.
>> 165
>> 166 If you say N here, the kernel will run on uni- and multiprocessor
>> 167 machines, but will use only one CPU of a multiprocessor machine. If
>> 168 you say Y here, the kernel will run on many, but not all,
>> 169 uniprocessor machines. On a uniprocessor machine, the kernel
>> 170 will run faster if you say N here.
>> 171
>> 172 People using multiprocessor machines who say Y here should also say
>> 173 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
>> 174 Management" code will be disabled if you say Y here.
172 175
173 if SMP !! 176 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
>> 177 available at <http://www.tldp.org/docs.html#howto>.
174 178
175 config NR_CPUS !! 179 If you don't know what to do here, say N.
176 int "Maximum number of CPUs (2-4096)" <<
177 range 2 4096 <<
178 default "4" <<
179 <<
180 config ARC_SMP_HALT_ON_RESET <<
181 bool "Enable Halt-on-reset boot mode" <<
182 help <<
183 In SMP configuration cores can be co <<
184 or they could all start at same time <<
185 masters are parked until Master kick <<
186 at designated entry point. For other <<
187 entry point and spin wait for Master <<
188 180
189 endif #SMP !! 181 config NR_CPUS
>> 182 int "Maximum number of CPUs"
>> 183 depends on SMP
>> 184 range 2 32 if SPARC32
>> 185 range 2 4096 if SPARC64
>> 186 default 32 if SPARC32
>> 187 default 4096 if SPARC64
>> 188
>> 189 source kernel/Kconfig.hz
>> 190
>> 191 config RWSEM_GENERIC_SPINLOCK
>> 192 bool
>> 193 default y if SPARC32
>> 194
>> 195 config RWSEM_XCHGADD_ALGORITHM
>> 196 bool
>> 197 default y if SPARC64
190 198
191 config ARC_MCIP !! 199 config GENERIC_HWEIGHT
192 bool "ARConnect Multicore IP (MCIP) Su !! 200 bool
193 depends on ISA_ARCV2 !! 201 default y
194 default y if SMP <<
195 help <<
196 This IP block enables SMP in ARC-HS3 <<
197 It provides for cross-core interrupt <<
198 hardware semaphores, shared memory,. <<
199 202
200 menuconfig ARC_CACHE !! 203 config GENERIC_CALIBRATE_DELAY
201 bool "Enable Cache Support" !! 204 bool
202 default y 205 default y
203 206
204 if ARC_CACHE !! 207 config ARCH_MAY_HAVE_PC_FDC
>> 208 bool
>> 209 default y
205 210
206 config ARC_CACHE_LINE_SHIFT !! 211 config EMULATED_CMPXCHG
207 int "Cache Line Length (as power of 2) !! 212 bool
208 range 5 7 !! 213 default y if SPARC32
209 default "6" <<
210 help 214 help
211 Starting with ARC700 4.9, Cache line !! 215 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
212 This option specifies "N", with Line !! 216 is emulated, and therefore it is not completely atomic.
213 So line lengths of 32, 64, 128 are s <<
214 Linux only supports same line length <<
215 217
216 config ARC_HAS_ICACHE !! 218 # Makefile helpers
217 bool "Use Instruction Cache" !! 219 config SPARC32_SMP
>> 220 bool
218 default y 221 default y
>> 222 depends on SPARC32 && SMP
219 223
220 config ARC_HAS_DCACHE !! 224 config SPARC64_SMP
221 bool "Use Data Cache" !! 225 bool
222 default y 226 default y
>> 227 depends on SPARC64 && SMP
223 228
224 config ARC_CACHE_PAGES !! 229 config EARLYFB
225 bool "Per Page Cache Control" !! 230 bool "Support for early boot text console"
226 default y 231 default y
227 depends on ARC_HAS_ICACHE || ARC_HAS_D !! 232 depends on SPARC64
228 help 233 help
229 This can be used to over-ride the gl !! 234 Say Y here to enable a faster early framebuffer boot console.
230 per-page basis (but only for pages a <<
231 Kernel Virtual address or User Virtu <<
232 TLB entries have a per-page Cache En <<
233 Note that Global I/D ENABLE + Per Pa <<
234 Global DISABLE + Per Page ENABLE won <<
235 <<
236 endif #ARC_CACHE <<
237 235
238 config ARC_HAS_ICCM !! 236 config SECCOMP
239 bool "Use ICCM" !! 237 bool "Enable seccomp to safely compute untrusted bytecode"
>> 238 depends on SPARC64 && PROC_FS
>> 239 default y
240 help 240 help
241 Single Cycle RAMS to store Fast Path !! 241 This kernel feature is useful for number crunching applications
>> 242 that may need to compute untrusted bytecode during their
>> 243 execution. By using pipes or other transports made available to
>> 244 the process as file descriptors supporting the read/write
>> 245 syscalls, it's possible to isolate those applications in
>> 246 their own address space using seccomp. Once seccomp is
>> 247 enabled via /proc/<pid>/seccomp, it cannot be disabled
>> 248 and the task is only allowed to execute a few safe syscalls
>> 249 defined by each seccomp mode.
242 250
243 config ARC_ICCM_SZ !! 251 If unsure, say Y. Only embedded should say N here.
244 int "ICCM Size in KB" <<
245 default "64" <<
246 depends on ARC_HAS_ICCM <<
247 252
248 config ARC_HAS_DCCM !! 253 config HOTPLUG_CPU
249 bool "Use DCCM" !! 254 bool "Support for hot-pluggable CPUs"
>> 255 depends on SPARC64 && SMP
250 help 256 help
251 Single Cycle RAMS to store Fast Path !! 257 Say Y here to experiment with turning CPUs off and on. CPUs
252 !! 258 can be controlled through /sys/devices/system/cpu/cpu#.
253 config ARC_DCCM_SZ !! 259 Say N if you want to disable CPU hotplug.
254 int "DCCM Size in KB" <<
255 default "64" <<
256 depends on ARC_HAS_DCCM <<
257 <<
258 config ARC_DCCM_BASE <<
259 hex "DCCM map address" <<
260 default "0xA0000000" <<
261 depends on ARC_HAS_DCCM <<
262 260
263 choice !! 261 if SPARC64
264 prompt "MMU Version" !! 262 source "drivers/cpufreq/Kconfig"
265 default ARC_MMU_V3 if ISA_ARCOMPACT !! 263 endif
266 default ARC_MMU_V4 if ISA_ARCV2 <<
267 264
268 config ARC_MMU_V3 !! 265 config US3_MC
269 bool "MMU v3" !! 266 tristate "UltraSPARC-III Memory Controller driver"
270 depends on ISA_ARCOMPACT !! 267 depends on SPARC64
>> 268 default y
271 help 269 help
272 Introduced with ARC700 4.10: New Fea !! 270 This adds a driver for the UltraSPARC-III memory controller.
273 Variable Page size (1k-16k), var JTL !! 271 Loading this driver allows exact mnemonic strings to be
274 Shared Address Spaces (SASID) !! 272 printed in the event of a memory error, so that the faulty DIMM
275 !! 273 on the motherboard can be matched to the error.
276 config ARC_MMU_V4 <<
277 bool "MMU v4" <<
278 depends on ISA_ARCV2 <<
279 <<
280 endchoice <<
281 274
>> 275 If in doubt, say Y, as this information can be very useful.
282 276
283 choice !! 277 # Global things across all Sun machines.
284 prompt "MMU Page Size" !! 278 config GENERIC_LOCKBREAK
285 default ARC_PAGE_SIZE_8K !! 279 bool
286 !! 280 default y
287 config ARC_PAGE_SIZE_8K !! 281 depends on SPARC64 && SMP && PREEMPT
288 bool "8KB" <<
289 select HAVE_PAGE_SIZE_8KB <<
290 help <<
291 Choose between 8k vs 16k <<
292 282
293 config ARC_PAGE_SIZE_16K !! 283 config NUMA
294 select HAVE_PAGE_SIZE_16KB !! 284 bool "NUMA support"
295 bool "16KB" !! 285 depends on SPARC64 && SMP
296 286
297 config ARC_PAGE_SIZE_4K !! 287 config NODES_SHIFT
298 bool "4KB" !! 288 int
299 select HAVE_PAGE_SIZE_4KB !! 289 default "4"
300 depends on ARC_MMU_V3 || ARC_MMU_V4 !! 290 depends on NEED_MULTIPLE_NODES
301 291
302 endchoice !! 292 # Some NUMA nodes have memory ranges that span
>> 293 # other nodes. Even though a pfn is valid and
>> 294 # between a node's start and end pfns, it may not
>> 295 # reside on that node. See memmap_init_zone()
>> 296 # for details.
>> 297 config NODES_SPAN_OTHER_NODES
>> 298 def_bool y
>> 299 depends on NEED_MULTIPLE_NODES
303 300
304 choice !! 301 config ARCH_SELECT_MEMORY_MODEL
305 prompt "MMU Super Page Size" !! 302 def_bool y if SPARC64
306 depends on ISA_ARCV2 && TRANSPARENT_HU <<
307 default ARC_HUGEPAGE_2M <<
308 303
309 config ARC_HUGEPAGE_2M !! 304 config ARCH_SPARSEMEM_ENABLE
310 bool "2MB" !! 305 def_bool y if SPARC64
>> 306 select SPARSEMEM_VMEMMAP_ENABLE
311 307
312 config ARC_HUGEPAGE_16M !! 308 config ARCH_SPARSEMEM_DEFAULT
313 bool "16MB" !! 309 def_bool y if SPARC64
314 310
315 endchoice !! 311 source "mm/Kconfig"
316 312
317 config PGTABLE_LEVELS !! 313 if SPARC64
318 int "Number of Page table levels" !! 314 source "kernel/power/Kconfig"
319 default 2 !! 315 endif
320 316
321 config ARC_COMPACT_IRQ_LEVELS !! 317 config SCHED_SMT
322 depends on ISA_ARCOMPACT !! 318 bool "SMT (Hyperthreading) scheduler support"
323 bool "Setup Timer IRQ as high Priority !! 319 depends on SPARC64 && SMP
324 # if SMP, LV2 enabled ONLY if ARC impl !! 320 default y
325 depends on !SMP !! 321 help
>> 322 SMT scheduler support improves the CPU scheduler's decision making
>> 323 when dealing with SPARC cpus at a cost of slightly increased overhead
>> 324 in some places. If unsure say N here.
>> 325
>> 326 config SCHED_MC
>> 327 bool "Multi-core scheduler support"
>> 328 depends on SPARC64 && SMP
>> 329 default y
>> 330 help
>> 331 Multi-core scheduler support improves the CPU scheduler's decision
>> 332 making when dealing with multi-core CPU chips at a cost of slightly
>> 333 increased overhead in some places. If unsure say N here.
>> 334
>> 335 source "kernel/Kconfig.preempt"
>> 336
>> 337 config CMDLINE_BOOL
>> 338 bool "Default bootloader kernel arguments"
>> 339 depends on SPARC64
>> 340
>> 341 config CMDLINE
>> 342 string "Initial kernel command string"
>> 343 depends on CMDLINE_BOOL
>> 344 default "console=ttyS0,9600 root=/dev/sda1"
>> 345 help
>> 346 Say Y here if you want to be able to pass default arguments to
>> 347 the kernel. This will be overridden by the bootloader, if you
>> 348 use one (such as SILO). This is most useful if you want to boot
>> 349 a kernel from TFTP, and want default options to be available
>> 350 with having them passed on the command line.
>> 351
>> 352 NOTE: This option WILL override the PROM bootargs setting!
>> 353
>> 354 config SUN_PM
>> 355 bool
>> 356 default y if SPARC32
>> 357 help
>> 358 Enable power management and CPU standby features on supported
>> 359 SPARC platforms.
>> 360
>> 361 config SPARC_LED
>> 362 tristate "Sun4m LED driver"
>> 363 depends on SPARC32
>> 364 help
>> 365 This driver toggles the front-panel LED on sun4m systems
>> 366 in a user-specifiable manner. Its state can be probed
>> 367 by reading /proc/led and its blinking mode can be changed
>> 368 via writes to /proc/led
>> 369
>> 370 config SERIAL_CONSOLE
>> 371 bool
>> 372 depends on SPARC32
>> 373 default y
>> 374 ---help---
>> 375 If you say Y here, it will be possible to use a serial port as the
>> 376 system console (the system console is the device which receives all
>> 377 kernel messages and warnings and which allows logins in single user
>> 378 mode). This could be useful if some terminal or printer is connected
>> 379 to that serial port.
>> 380
>> 381 Even if you say Y here, the currently visible virtual console
>> 382 (/dev/tty0) will still be used as the system console by default, but
>> 383 you can alter that using a kernel command line option such as
>> 384 "console=ttyS1". (Try "man bootparam" or see the documentation of
>> 385 your boot loader (silo) about how to pass options to the kernel at
>> 386 boot time.)
>> 387
>> 388 If you don't have a graphics card installed and you say Y here, the
>> 389 kernel will automatically use the first serial line, /dev/ttyS0, as
>> 390 system console.
>> 391
>> 392 If unsure, say N.
>> 393
>> 394 config SPARC_LEON
>> 395 bool "Sparc Leon processor family"
>> 396 depends on SPARC32
>> 397 select USB_EHCI_BIG_ENDIAN_MMIO
>> 398 select USB_EHCI_BIG_ENDIAN_DESC
>> 399 ---help---
>> 400 If you say Y here if you are running on a SPARC-LEON processor.
>> 401 The LEON processor is a synthesizable VHDL model of the
>> 402 SPARC-v8 standard. LEON is part of the GRLIB collection of
>> 403 IP cores that are distributed under GPL. GRLIB can be downloaded
>> 404 from www.gaisler.com. You can download a sparc-linux cross-compilation
>> 405 toolchain at www.gaisler.com.
>> 406
>> 407 if SPARC_LEON
>> 408 menu "U-Boot options"
>> 409
>> 410 config UBOOT_LOAD_ADDR
>> 411 hex "uImage Load Address"
>> 412 default 0x40004000
>> 413 ---help---
>> 414 U-Boot kernel load address, the address in physical address space
>> 415 where u-boot will place the Linux kernel before booting it.
>> 416 This address is normally the base address of main memory + 0x4000.
>> 417
>> 418 config UBOOT_FLASH_ADDR
>> 419 hex "uImage.o Load Address"
>> 420 default 0x00080000
>> 421 ---help---
>> 422 Optional setting only affecting the uImage.o ELF-image used to
>> 423 download the uImage file to the target using a ELF-loader other than
>> 424 U-Boot. It may for example be used to download an uImage to FLASH with
>> 425 the GRMON utility before even starting u-boot.
>> 426
>> 427 config UBOOT_ENTRY_ADDR
>> 428 hex "uImage Entry Address"
>> 429 default 0xf0004000
>> 430 ---help---
>> 431 Do not change this unless you know what you're doing. This is
>> 432 hardcoded by the SPARC32 and LEON port.
326 433
327 config ARC_FPU_SAVE_RESTORE !! 434 This is the virtual address u-boot jumps to when booting the Linux
328 bool "Enable FPU state persistence acr !! 435 Kernel.
329 help <<
330 ARCompact FPU has internal registers <<
331 Floating Point operations. There are <<
332 for floating point exceptions and ro <<
333 preserved across task context switch <<
334 436
335 config ARC_CANT_LLSC !! 437 endmenu
336 def_bool n !! 438 endif
337 439
338 config ARC_HAS_LLSC !! 440 endmenu
339 bool "Insn: LLOCK/SCOND (efficient ato <<
340 default y <<
341 depends on !ARC_CANT_LLSC <<
342 441
343 config ARC_HAS_SWAPE !! 442 menu "Bus options (PCI etc.)"
344 bool "Insn: SWAPE (endian-swap)" !! 443 config SBUS
>> 444 bool
345 default y 445 default y
346 446
347 if ISA_ARCV2 !! 447 config SBUSCHAR
348 !! 448 bool
349 config ARC_USE_UNALIGNED_MEM_ACCESS <<
350 bool "Enable unaligned access in HW" <<
351 default y 449 default y
352 select HAVE_EFFICIENT_UNALIGNED_ACCESS <<
353 help <<
354 The ARC HS architecture supports una <<
355 which is disabled by default. Enable <<
356 hardware and use software to use it <<
357 450
358 config ARC_HAS_LL64 !! 451 config SUN_LDOMS
359 bool "Insn: 64bit LDD/STD" !! 452 bool "Sun Logical Domains support"
>> 453 depends on SPARC64
360 help 454 help
361 Enable gcc to generate 64-bit load/s !! 455 Say Y here is you want to support virtual devices via
362 ISA mandates even/odd registers to a !! 456 Logical Domains.
363 dest operands with 2 possible source <<
364 default y <<
365 457
366 config ARC_HAS_DIV_REM !! 458 config PCI
367 bool "Insn: div, divu, rem, remu" !! 459 bool "Support for PCI and PS/2 keyboard/mouse"
368 default y <<
369 <<
370 config ARC_HAS_ACCL_REGS <<
371 bool "Reg Pair ACCL:ACCH (FPU and/or M <<
372 default y <<
373 help 460 help
374 Depending on the configuration, CPU !! 461 Find out whether your system includes a PCI bus. PCI is the name of
375 (also referred to as r58:r59). These !! 462 a bus system, i.e. the way the CPU talks to the other stuff inside
376 kernel needs to save/restore per pro !! 463 your box. If you say Y here, the kernel will include drivers and
377 !! 464 infrastructure code to support PCI bus devices.
378 config ARC_DSP_HANDLED <<
379 def_bool n <<
380 465
381 config ARC_DSP_SAVE_RESTORE_REGS !! 466 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
382 def_bool n !! 467 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
>> 468 All of these platforms are extremely obscure, so say N if unsure.
383 469
384 choice !! 470 config PCI_DOMAINS
385 prompt "DSP support" !! 471 def_bool PCI if SPARC64
386 default ARC_DSP_NONE <<
387 help <<
388 Depending on the configuration, CPU <<
389 (ACC0_GLO, ACC0_GHI, DSP_BFLY0, DSP_ <<
390 Below are options describing how to <<
391 interrupt entry / exit and in contex <<
392 <<
393 config ARC_DSP_NONE <<
394 bool "No DSP extension presence in HW" <<
395 help <<
396 No DSP extension presence in HW <<
397 472
398 config ARC_DSP_KERNEL !! 473 config PCI_SYSCALL
399 bool "DSP extension in HW, no support !! 474 def_bool PCI
400 select ARC_HAS_ACCL_REGS <<
401 select ARC_DSP_HANDLED <<
402 help <<
403 DSP extension presence in HW, no sup <<
404 applications. We don't save / restor <<
405 some minimal preparations so userspa <<
406 475
407 config ARC_DSP_USERSPACE !! 476 config PCIC_PCI
408 bool "Support DSP for userspace apps" !! 477 bool
409 select ARC_HAS_ACCL_REGS !! 478 depends on PCI && SPARC32 && !SPARC_LEON
410 select ARC_DSP_HANDLED !! 479 default y
411 select ARC_DSP_SAVE_RESTORE_REGS <<
412 help <<
413 DSP extension presence in HW, suppor <<
414 run DSP-enabled userspace applicatio <<
415 480
416 config ARC_DSP_AGU_USERSPACE !! 481 config LEON_PCI
417 bool "Support DSP with AGU for userspa !! 482 bool
418 select ARC_HAS_ACCL_REGS !! 483 depends on PCI && SPARC_LEON
419 select ARC_DSP_HANDLED !! 484 default y
420 select ARC_DSP_SAVE_RESTORE_REGS <<
421 help <<
422 DSP and AGU extensions presence in H <<
423 and AGU registers to run DSP-enabled <<
424 endchoice <<
425 485
426 config ARC_IRQ_NO_AUTOSAVE !! 486 config SPARC_GRPCI1
427 bool "Disable hardware autosave regfil !! 487 bool "GRPCI Host Bridge Support"
428 default n !! 488 depends on LEON_PCI
>> 489 default y
429 help 490 help
430 On HS cores, taken interrupt auto sa !! 491 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
431 This is programmable and can be opti !! 492 PCI host controller is typically found in GRLIB SPARC32/LEON
432 software INTERRUPT_PROLOGUE/EPILGUE !! 493 systems. The driver has one property (all_pci_errors) controlled
>> 494 from the bootloader that makes the GRPCI to generate interrupts
>> 495 on detected PCI Parity and System errors.
433 496
434 config ARC_LPB_DISABLE !! 497 config SPARC_GRPCI2
435 bool "Disable loop buffer (LPB)" !! 498 bool "GRPCI2 Host Bridge Support"
>> 499 depends on LEON_PCI
>> 500 default y
436 help 501 help
437 On HS cores, loop buffer (LPB) is pr !! 502 Say Y here to include the GRPCI2 Host Bridge Driver.
438 be optionally disabled. <<
439 503
440 endif # ISA_ARCV2 !! 504 source "drivers/pci/Kconfig"
441 505
442 endmenu # "ARC CPU Configuration" !! 506 source "drivers/pcmcia/Kconfig"
443 507
444 config LINUX_LINK_BASE !! 508 config SUN_OPENPROMFS
445 hex "Kernel link address" !! 509 tristate "Openprom tree appears in /proc/openprom"
446 default "0x80000000" <<
447 help 510 help
448 ARC700 divides the 32 bit phy addres !! 511 If you say Y, the OpenPROM device tree will be available as a
449 -Lower 2G (0 - 0x7FFF_FFFF ) is user !! 512 virtual file system, which you can mount to /proc/openprom by "mount
450 -Upper 2G (0x8000_0000 onwards) is u !! 513 -t openpromfs none /proc/openprom".
451 Typically Linux kernel is linked at <<
452 hence the default value of 0x8zs. <<
453 However some customers have peripher <<
454 Linux needs to be scooted a bit. <<
455 If you don't know what the above mea <<
456 This needs to match memory start add <<
457 514
458 config LINUX_RAM_BASE !! 515 To compile the /proc/openprom support as a module, choose M here: the
459 hex "RAM base address" !! 516 module will be called openpromfs.
460 default LINUX_LINK_BASE <<
461 help <<
462 By default Linux is linked at base o <<
463 cases (such as HSDK), Linux can't be <<
464 this option. <<
465 <<
466 config HIGHMEM <<
467 bool "High Memory Support" <<
468 select HAVE_ARCH_PFN_VALID <<
469 select KMAP_LOCAL <<
470 help <<
471 With ARC 2G:2G address split, only u <<
472 kernel. Enable this to potentially a <<
473 in future <<
474 517
475 config ARC_HAS_PAE40 !! 518 Only choose N if you know in advance that you will not need to modify
476 bool "Support for the 40-bit Physical !! 519 OpenPROM settings on the running system.
477 depends on ISA_ARCV2 <<
478 select HIGHMEM <<
479 select PHYS_ADDR_T_64BIT <<
480 help <<
481 Enable access to physical memory bey <<
482 ARC cores with 40 bit Physical Addre <<
483 <<
484 config ARC_KVADDR_SIZE <<
485 int "Kernel Virtual Address Space size <<
486 range 0 512 <<
487 default "256" <<
488 help <<
489 The kernel address space is carved o <<
490 space for catering to vmalloc, modul <<
491 not suffice vmalloc requirements of <<
492 this to be stretched to 512 MB (by e <<
493 kernel-user gutter) <<
494 520
495 config ARC_CURR_IN_REG !! 521 # Makefile helpers
496 bool "cache current task pointer in gp !! 522 config SPARC64_PCI
>> 523 bool
497 default y 524 default y
498 help !! 525 depends on SPARC64 && PCI
499 This reserves gp register to point t <<
500 kernel mode eliding memory access fo <<
501 526
>> 527 config SPARC64_PCI_MSI
>> 528 bool
>> 529 default y
>> 530 depends on SPARC64_PCI && PCI_MSI
502 531
503 config ARC_EMUL_UNALIGNED !! 532 endmenu
504 bool "Emulate unaligned memory access <<
505 select SYSCTL_ARCH_UNALIGN_NO_WARN <<
506 select SYSCTL_ARCH_UNALIGN_ALLOW <<
507 depends on ISA_ARCOMPACT <<
508 help <<
509 This enables misaligned 16 & 32 bit <<
510 Use ONLY-IF-ABS-NECESSARY as it will <<
511 potential bugs in code <<
512 533
513 config HZ !! 534 menu "Executable file formats"
514 int "Timer Frequency" <<
515 default 100 <<
516 535
517 config ARC_METAWARE_HLINK !! 536 source "fs/Kconfig.binfmt"
518 bool "Support for Metaware debugger as <<
519 help <<
520 This options allows a Linux userland <<
521 host file system (open/creat/read/wr <<
522 Metaware Debugger. This can come in <<
523 when there is no real usable periphe <<
524 537
525 menuconfig ARC_DBG !! 538 config COMPAT
526 bool "ARC debugging" !! 539 bool
>> 540 depends on SPARC64
>> 541 default y
>> 542 select COMPAT_BINFMT_ELF if BINFMT_ELF
>> 543 select HAVE_UID16
>> 544 select ARCH_WANT_OLD_COMPAT_IPC
>> 545 select COMPAT_OLD_SIGACTION
>> 546
>> 547 config SYSVIPC_COMPAT
>> 548 bool
>> 549 depends on COMPAT && SYSVIPC
527 default y 550 default y
528 551
529 if ARC_DBG !! 552 endmenu
530 553
531 config ARC_DW2_UNWIND !! 554 source "net/Kconfig"
532 bool "Enable DWARF specific kernel sta <<
533 default y <<
534 select KALLSYMS <<
535 help <<
536 Compiles the kernel with DWARF unwin <<
537 to get stack backtraces. <<
538 555
539 If you say Y here the resulting kern !! 556 source "drivers/Kconfig"
540 but not slower, and it will give ver <<
541 If you don't debug the kernel, you c <<
542 to solve problems without frame unwi <<
543 557
544 config ARC_DBG_JUMP_LABEL !! 558 source "drivers/sbus/char/Kconfig"
545 bool "Paranoid checks in Static Keys ( <<
546 depends on JUMP_LABEL <<
547 default y if STATIC_KEYS_SELFTEST <<
548 help <<
549 Enable paranoid checks and self-test <<
550 part of static keys (jump labels) re <<
551 endif <<
552 559
553 config ARC_BUILTIN_DTB_NAME !! 560 source "fs/Kconfig"
554 string "Built in DTB" <<
555 help <<
556 Set the name of the DTB to embed in <<
557 Leaving it blank selects the "nsim_7 <<
558 561
559 endmenu # "ARC Architecture Configuration" !! 562 source "arch/sparc/Kconfig.debug"
560 563
561 config ARCH_FORCE_MAX_ORDER !! 564 source "security/Kconfig"
562 int "Maximum zone order" <<
563 default "11" if ARC_HUGEPAGE_16M <<
564 default "10" <<
565 565
566 source "kernel/power/Kconfig" !! 566 source "crypto/Kconfig"
>> 567
>> 568 source "lib/Kconfig"
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