1 # SPDX-License-Identifier: GPL-2.0-only !! 1 config 64BIT
2 config CSKY !! 2 bool "64-bit kernel" if ARCH = "sparc"
3 def_bool y !! 3 default ARCH = "sparc64"
4 select ARCH_32BIT_OFF_T !! 4 help
5 select ARCH_HAS_CPU_CACHE_ALIASING !! 5 SPARC is a family of RISC microprocessors designed and marketed by
6 select ARCH_HAS_DMA_PREP_COHERENT !! 6 Sun Microsystems, incorporated. They are very widely found in Sun
7 select ARCH_HAS_GCOV_PROFILE_ALL !! 7 workstations and clones.
8 select ARCH_HAS_SYNC_DMA_FOR_CPU !! 8
9 select ARCH_HAS_SYNC_DMA_FOR_DEVICE !! 9 Say yes to build a 64-bit kernel - formerly known as sparc64
10 select ARCH_USE_BUILTIN_BSWAP !! 10 Say no to build a 32-bit kernel - formerly known as sparc
11 select ARCH_USE_QUEUED_RWLOCKS !! 11
12 select ARCH_USE_QUEUED_SPINLOCKS !! 12 config SPARC
13 select ARCH_HAS_CURRENT_STACK_POINTER !! 13 bool
14 select ARCH_INLINE_READ_LOCK if !PREEM !! 14 default y
15 select ARCH_INLINE_READ_LOCK_BH if !PR !! 15 select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
16 select ARCH_INLINE_READ_LOCK_IRQ if !P !! 16 select ARCH_MIGHT_HAVE_PC_SERIO
17 select ARCH_INLINE_READ_LOCK_IRQSAVE i !! 17 select OF
18 select ARCH_INLINE_READ_UNLOCK if !PRE !! 18 select OF_PROMTREE
19 select ARCH_INLINE_READ_UNLOCK_BH if ! !! 19 select HAVE_IDE
20 select ARCH_INLINE_READ_UNLOCK_IRQ if !! 20 select HAVE_OPROFILE
21 select ARCH_INLINE_READ_UNLOCK_IRQREST !! 21 select HAVE_ARCH_KGDB if !SMP || SPARC64
22 select ARCH_INLINE_WRITE_LOCK if !PREE <<
23 select ARCH_INLINE_WRITE_LOCK_BH if !P <<
24 select ARCH_INLINE_WRITE_LOCK_IRQ if ! <<
25 select ARCH_INLINE_WRITE_LOCK_IRQSAVE <<
26 select ARCH_INLINE_WRITE_UNLOCK if !PR <<
27 select ARCH_INLINE_WRITE_UNLOCK_BH if <<
28 select ARCH_INLINE_WRITE_UNLOCK_IRQ if <<
29 select ARCH_INLINE_WRITE_UNLOCK_IRQRES <<
30 select ARCH_INLINE_SPIN_TRYLOCK if !PR <<
31 select ARCH_INLINE_SPIN_TRYLOCK_BH if <<
32 select ARCH_INLINE_SPIN_LOCK if !PREEM <<
33 select ARCH_INLINE_SPIN_LOCK_BH if !PR <<
34 select ARCH_INLINE_SPIN_LOCK_IRQ if !P <<
35 select ARCH_INLINE_SPIN_LOCK_IRQSAVE i <<
36 select ARCH_INLINE_SPIN_UNLOCK if !PRE <<
37 select ARCH_INLINE_SPIN_UNLOCK_BH if ! <<
38 select ARCH_INLINE_SPIN_UNLOCK_IRQ if <<
39 select ARCH_INLINE_SPIN_UNLOCK_IRQREST <<
40 select ARCH_NEED_CMPXCHG_1_EMU <<
41 select ARCH_WANT_FRAME_POINTERS if !CP <<
42 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_ <<
43 select COMMON_CLK <<
44 select CLKSRC_MMIO <<
45 select CSKY_MPINTC if CPU_CK860 <<
46 select CSKY_MP_TIMER if CPU_CK860 <<
47 select CSKY_APB_INTC <<
48 select DMA_DIRECT_REMAP <<
49 select IRQ_DOMAIN <<
50 select DW_APB_TIMER_OF <<
51 select GENERIC_IOREMAP <<
52 select GENERIC_LIB_ASHLDI3 <<
53 select GENERIC_LIB_ASHRDI3 <<
54 select GENERIC_LIB_LSHRDI3 <<
55 select GENERIC_LIB_MULDI3 <<
56 select GENERIC_LIB_CMPDI2 <<
57 select GENERIC_LIB_UCMPDI2 <<
58 select GENERIC_ALLOCATOR <<
59 select GENERIC_ATOMIC64 <<
60 select GENERIC_CPU_DEVICES <<
61 select GENERIC_IRQ_CHIP <<
62 select GENERIC_IRQ_PROBE <<
63 select GENERIC_IRQ_SHOW <<
64 select GENERIC_IRQ_MULTI_HANDLER <<
65 select GENERIC_SCHED_CLOCK <<
66 select GENERIC_SMP_IDLE_THREAD <<
67 select GENERIC_TIME_VSYSCALL <<
68 select GENERIC_VDSO_32 <<
69 select GENERIC_GETTIMEOFDAY <<
70 select GX6605S_TIMER if CPU_CK610 <<
71 select HAVE_ARCH_TRACEHOOK 22 select HAVE_ARCH_TRACEHOOK
72 select HAVE_ARCH_AUDITSYSCALL !! 23 select HAVE_EXIT_THREAD
73 select HAVE_ARCH_JUMP_LABEL if !CPU_CK !! 24 select SYSCTL_EXCEPTION_TRACE
74 select HAVE_ARCH_JUMP_LABEL_RELATIVE !! 25 select RTC_CLASS
75 select HAVE_ARCH_MMAP_RND_BITS !! 26 select RTC_DRV_M48T59
76 select HAVE_ARCH_SECCOMP_FILTER !! 27 select RTC_SYSTOHC
77 select HAVE_CONTEXT_TRACKING_USER !! 28 select HAVE_DMA_API_DEBUG
78 select HAVE_VIRT_CPU_ACCOUNTING_GEN !! 29 select HAVE_ARCH_JUMP_LABEL if SPARC64
>> 30 select GENERIC_IRQ_SHOW
>> 31 select ARCH_WANT_IPC_PARSE_VERSION
>> 32 select GENERIC_PCI_IOMAP
>> 33 select HAVE_NMI_WATCHDOG if SPARC64
>> 34 select HAVE_CBPF_JIT if SPARC32
>> 35 select HAVE_EBPF_JIT if SPARC64
79 select HAVE_DEBUG_BUGVERBOSE 36 select HAVE_DEBUG_BUGVERBOSE
80 select HAVE_DEBUG_KMEMLEAK !! 37 select GENERIC_SMP_IDLE_THREAD
81 select HAVE_DYNAMIC_FTRACE !! 38 select GENERIC_CLOCKEVENTS
82 select HAVE_DYNAMIC_FTRACE_WITH_REGS !! 39 select GENERIC_STRNCPY_FROM_USER
83 select HAVE_GENERIC_VDSO !! 40 select GENERIC_STRNLEN_USER
>> 41 select MODULES_USE_ELF_RELA
>> 42 select ODD_RT_SIGACTION
>> 43 select OLD_SIGSUSPEND
>> 44 select ARCH_HAS_SG_CHAIN
>> 45 select CPU_NO_EFFICIENT_FFS
>> 46 select LOCKDEP_SMALL if LOCKDEP
>> 47
>> 48 config SPARC32
>> 49 def_bool !64BIT
>> 50 select GENERIC_ATOMIC64
>> 51 select CLZ_TAB
>> 52 select HAVE_UID16
>> 53 select OLD_SIGACTION
>> 54
>> 55 config SPARC64
>> 56 def_bool 64BIT
84 select HAVE_FUNCTION_TRACER 57 select HAVE_FUNCTION_TRACER
85 select HAVE_FUNCTION_GRAPH_TRACER 58 select HAVE_FUNCTION_GRAPH_TRACER
86 select HAVE_FUNCTION_ERROR_INJECTION !! 59 select HAVE_KRETPROBES
>> 60 select HAVE_KPROBES
>> 61 select HAVE_RCU_TABLE_FREE if SMP
>> 62 select HAVE_MEMBLOCK
>> 63 select HAVE_MEMBLOCK_NODE_MAP
>> 64 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
>> 65 select HAVE_DYNAMIC_FTRACE
87 select HAVE_FTRACE_MCOUNT_RECORD 66 select HAVE_FTRACE_MCOUNT_RECORD
88 select HAVE_KERNEL_GZIP !! 67 select HAVE_SYSCALL_TRACEPOINTS
89 select HAVE_KERNEL_LZO !! 68 select HAVE_CONTEXT_TRACKING
90 select HAVE_KERNEL_LZMA !! 69 select HAVE_DEBUG_KMEMLEAK
91 select HAVE_KPROBES if !CPU_CK610 !! 70 select SPARSE_IRQ
92 select HAVE_KPROBES_ON_FTRACE if !CPU_ !! 71 select RTC_DRV_CMOS
93 select HAVE_KRETPROBES if !CPU_CK610 !! 72 select RTC_DRV_BQ4802
94 select HAVE_PAGE_SIZE_4KB !! 73 select RTC_DRV_SUN4V
>> 74 select RTC_DRV_STARFIRE
95 select HAVE_PERF_EVENTS 75 select HAVE_PERF_EVENTS
96 select HAVE_PERF_REGS !! 76 select PERF_USE_VMALLOC
97 select HAVE_PERF_USER_STACK_DUMP !! 77 select IRQ_PREFLOW_FASTEOI
98 select HAVE_DMA_CONTIGUOUS !! 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 select HAVE_NMI
99 select HAVE_REGS_AND_STACK_ACCESS_API 84 select HAVE_REGS_AND_STACK_ACCESS_API
100 select HAVE_STACKPROTECTOR !! 85 select ARCH_USE_QUEUED_RWLOCKS
101 select HAVE_SYSCALL_TRACEPOINTS !! 86 select ARCH_USE_QUEUED_SPINLOCKS
102 select HOTPLUG_CORE_SYNC_DEAD if HOTPL !! 87 select GENERIC_TIME_VSYSCALL
103 select LOCK_MM_AND_FIND_VMA !! 88 select ARCH_CLOCKSOURCE_DATA
104 select MAY_HAVE_SPARSE_IRQ <<
105 select MODULES_USE_ELF_RELA if MODULES <<
106 select OF <<
107 select OF_EARLY_FLATTREE <<
108 select PERF_USE_VMALLOC if CPU_CK610 <<
109 select RTC_LIB <<
110 select TIMER_OF <<
111 select GENERIC_PCI_IOMAP <<
112 select HAVE_PCI <<
113 select PCI_DOMAINS_GENERIC if PCI <<
114 select PCI_SYSCALL if PCI <<
115 select PCI_MSI if PCI <<
116 select TRACE_IRQFLAGS_SUPPORT <<
117 89
118 config LOCKDEP_SUPPORT !! 90 config ARCH_DEFCONFIG
>> 91 string
>> 92 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
>> 93 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
>> 94
>> 95 config ARCH_PROC_KCORE_TEXT
119 def_bool y 96 def_bool y
120 97
121 config ARCH_SUPPORTS_UPROBES !! 98 config CPU_BIG_ENDIAN
122 def_bool y if !CPU_CK610 !! 99 def_bool y
123 100
124 config CPU_HAS_CACHEV2 !! 101 config ARCH_ATU
125 bool 102 bool
>> 103 default y if SPARC64
126 104
127 config CPU_HAS_FPUV2 !! 105 config ARCH_DMA_ADDR_T_64BIT
128 bool 106 bool
>> 107 default y if ARCH_ATU
129 108
130 config CPU_HAS_HILO !! 109 config IOMMU_HELPER
131 bool 110 bool
>> 111 default y if SPARC64
132 112
133 config CPU_HAS_TLBI !! 113 config STACKTRACE_SUPPORT
134 bool 114 bool
>> 115 default y if SPARC64
135 116
136 config CPU_HAS_LDSTEX !! 117 config LOCKDEP_SUPPORT
137 bool 118 bool
138 help !! 119 default y if SPARC64
139 For SMP, CPU needs "ldex&stex" instr <<
140 120
141 config CPU_NEED_TLBSYNC !! 121 config ARCH_HIBERNATION_POSSIBLE
>> 122 def_bool y if SPARC64
>> 123
>> 124 config AUDIT_ARCH
>> 125 bool
>> 126 default y
>> 127
>> 128 config HAVE_SETUP_PER_CPU_AREA
>> 129 def_bool y if SPARC64
>> 130
>> 131 config NEED_PER_CPU_EMBED_FIRST_CHUNK
>> 132 def_bool y if SPARC64
>> 133
>> 134 config NEED_PER_CPU_PAGE_FIRST_CHUNK
>> 135 def_bool y if SPARC64
>> 136
>> 137 config MMU
142 bool 138 bool
>> 139 default y
143 140
144 config CPU_NEED_SOFTALIGN !! 141 config HIGHMEM
145 bool 142 bool
>> 143 default y if SPARC32
146 144
147 config CPU_NO_USER_BKPT !! 145 config ZONE_DMA
148 bool 146 bool
149 help !! 147 default y if SPARC32
150 For abiv2 we couldn't use "trap 1" a <<
151 abiv2 is 16/32bit instruction set an <<
152 So we need a 16bit instruction as us <<
153 instruction exception. <<
154 In kernel we parse the *regs->pc to <<
155 148
156 config GENERIC_CALIBRATE_DELAY !! 149 config NEED_DMA_MAP_STATE
157 def_bool y 150 def_bool y
158 151
159 config GENERIC_CSUM !! 152 config NEED_SG_DMA_LENGTH
160 def_bool y 153 def_bool y
161 154
162 config GENERIC_HWEIGHT !! 155 config GENERIC_ISA_DMA
163 def_bool y !! 156 bool
>> 157 default y if SPARC32
164 158
165 config MMU !! 159 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
166 def_bool y !! 160 def_bool y if SPARC64
167 161
168 config STACKTRACE_SUPPORT !! 162 config PGTABLE_LEVELS
169 def_bool y !! 163 default 4 if 64BIT
>> 164 default 3
170 165
171 config TIME_LOW_RES !! 166 config ARCH_SUPPORTS_UPROBES
172 def_bool y !! 167 def_bool y if SPARC64
>> 168
>> 169 source "init/Kconfig"
173 170
174 config CPU_ASID_BITS !! 171 source "kernel/Kconfig.freezer"
175 int <<
176 default "8" if (CPU_CK610 || CPU_C <<
177 default "12" if (CPU_CK860) <<
178 <<
179 config L1_CACHE_SHIFT <<
180 int <<
181 default "4" if (CPU_CK610) <<
182 default "5" if (CPU_CK807 || CPU_C <<
183 default "6" if (CPU_CK860) <<
184 <<
185 config ARCH_MMAP_RND_BITS_MIN <<
186 default 8 <<
187 <<
188 # max bits determined by the following formula <<
189 # VA_BITS - PAGE_SHIFT - 3 <<
190 config ARCH_MMAP_RND_BITS_MAX <<
191 default 17 <<
192 172
193 menu "Processor type and features" 173 menu "Processor type and features"
194 174
195 choice !! 175 config SMP
196 prompt "CPU MODEL" !! 176 bool "Symmetric multi-processing support"
197 default CPU_CK807 !! 177 ---help---
198 !! 178 This enables support for systems with more than one CPU. If you have
199 config CPU_CK610 !! 179 a system with only one CPU, say N. If you have a system with more
200 bool "CSKY CPU ck610" !! 180 than one CPU, say Y.
201 select CPU_NEED_TLBSYNC !! 181
202 select CPU_NEED_SOFTALIGN !! 182 If you say N here, the kernel will run on uni- and multiprocessor
203 select CPU_NO_USER_BKPT !! 183 machines, but will use only one CPU of a multiprocessor machine. If
204 !! 184 you say Y here, the kernel will run on many, but not all,
205 config CPU_CK810 !! 185 uniprocessor machines. On a uniprocessor machine, the kernel
206 bool "CSKY CPU ck810" !! 186 will run faster if you say N here.
207 select CPU_HAS_HILO !! 187
208 select CPU_NEED_TLBSYNC !! 188 People using multiprocessor machines who say Y here should also say
209 !! 189 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
210 config CPU_CK807 !! 190 Management" code will be disabled if you say Y here.
211 bool "CSKY CPU ck807" <<
212 select CPU_HAS_HILO <<
213 <<
214 config CPU_CK860 <<
215 bool "CSKY CPU ck860" <<
216 select CPU_HAS_TLBI <<
217 select CPU_HAS_CACHEV2 <<
218 select CPU_HAS_LDSTEX <<
219 select CPU_HAS_FPUV2 <<
220 endchoice <<
221 <<
222 choice <<
223 prompt "PAGE OFFSET" <<
224 default PAGE_OFFSET_80000000 <<
225 <<
226 config PAGE_OFFSET_80000000 <<
227 bool "PAGE OFFSET 2G (user:kernel = 2: <<
228 <<
229 config PAGE_OFFSET_A0000000 <<
230 bool "PAGE OFFSET 2.5G (user:kernel = <<
231 endchoice <<
232 <<
233 config PAGE_OFFSET <<
234 hex <<
235 default 0x80000000 if PAGE_OFFSET_8000 <<
236 default 0xa0000000 if PAGE_OFFSET_A000 <<
237 choice <<
238 <<
239 prompt "C-SKY PMU type" <<
240 depends on PERF_EVENTS <<
241 depends on CPU_CK807 || CPU_CK810 || C <<
242 <<
243 config CPU_PMU_NONE <<
244 bool "None" <<
245 <<
246 config CSKY_PMU_V1 <<
247 bool "Performance Monitoring Unit Ver. <<
248 <<
249 endchoice <<
250 <<
251 choice <<
252 prompt "Power Manager Instruction (wai <<
253 default CPU_PM_NONE <<
254 <<
255 config CPU_PM_NONE <<
256 bool "None" <<
257 <<
258 config CPU_PM_WAIT <<
259 bool "wait" <<
260 <<
261 config CPU_PM_DOZE <<
262 bool "doze" <<
263 <<
264 config CPU_PM_STOP <<
265 bool "stop" <<
266 endchoice <<
267 <<
268 menuconfig HAVE_TCM <<
269 bool "Tightly-Coupled/Sram Memory" <<
270 depends on !COMPILE_TEST <<
271 help <<
272 The implementation are not only used <<
273 but also used by sram on SOC bus. It <<
274 software interface, so that old tcm <<
275 re-used directly. <<
276 <<
277 if HAVE_TCM <<
278 config ITCM_RAM_BASE <<
279 hex "ITCM ram base" <<
280 default 0xffffffff <<
281 <<
282 config ITCM_NR_PAGES <<
283 int "Page count of ITCM size: NR*4KB" <<
284 range 1 256 <<
285 default 32 <<
286 <<
287 config HAVE_DTCM <<
288 bool "DTCM Support" <<
289 <<
290 config DTCM_RAM_BASE <<
291 hex "DTCM ram base" <<
292 depends on HAVE_DTCM <<
293 default 0xffffffff <<
294 <<
295 config DTCM_NR_PAGES <<
296 int "Page count of DTCM size: NR*4KB" <<
297 depends on HAVE_DTCM <<
298 range 1 256 <<
299 default 32 <<
300 endif <<
301 191
302 config CPU_HAS_VDSP !! 192 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
303 bool "CPU has VDSP coprocessor" !! 193 available at <http://www.tldp.org/docs.html#howto>.
304 depends on CPU_HAS_FPU && CPU_HAS_FPUV <<
305 <<
306 config CPU_HAS_FPU <<
307 bool "CPU has FPU coprocessor" <<
308 depends on CPU_CK807 || CPU_CK810 || C <<
309 <<
310 config CPU_HAS_ICACHE_INS <<
311 bool "CPU has Icache invalidate instru <<
312 depends on CPU_HAS_CACHEV2 <<
313 <<
314 config CPU_HAS_TEE <<
315 bool "CPU has Trusted Execution Enviro <<
316 depends on CPU_CK810 <<
317 194
318 config SMP !! 195 If you don't know what to do here, say N.
319 bool "Symmetric Multi-Processing (SMP) <<
320 depends on CPU_CK860 <<
321 default n <<
322 196
323 config NR_CPUS 197 config NR_CPUS
324 int "Maximum number of CPUs (2-32)" !! 198 int "Maximum number of CPUs"
325 range 2 32 <<
326 depends on SMP 199 depends on SMP
327 default "4" !! 200 range 2 32 if SPARC32
>> 201 range 2 4096 if SPARC64
>> 202 default 32 if SPARC32
>> 203 default 4096 if SPARC64
328 204
329 config HIGHMEM !! 205 source kernel/Kconfig.hz
330 bool "High Memory Support" !! 206
331 depends on !CPU_CK610 !! 207 config RWSEM_GENERIC_SPINLOCK
332 select KMAP_LOCAL !! 208 bool
>> 209 default y if SPARC32
>> 210
>> 211 config RWSEM_XCHGADD_ALGORITHM
>> 212 bool
>> 213 default y if SPARC64
>> 214
>> 215 config GENERIC_HWEIGHT
>> 216 bool
>> 217 default y
>> 218
>> 219 config GENERIC_CALIBRATE_DELAY
>> 220 bool
>> 221 default y
>> 222
>> 223 config ARCH_MAY_HAVE_PC_FDC
>> 224 bool
333 default y 225 default y
334 226
335 config DRAM_BASE !! 227 config EMULATED_CMPXCHG
336 hex "DRAM start addr (the same with me !! 228 bool
337 default 0x0 !! 229 default y if SPARC32
>> 230 help
>> 231 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
>> 232 is emulated, and therefore it is not completely atomic.
>> 233
>> 234 # Makefile helpers
>> 235 config SPARC32_SMP
>> 236 bool
>> 237 default y
>> 238 depends on SPARC32 && SMP
>> 239
>> 240 config SPARC64_SMP
>> 241 bool
>> 242 default y
>> 243 depends on SPARC64 && SMP
>> 244
>> 245 config EARLYFB
>> 246 bool "Support for early boot text console"
>> 247 default y
>> 248 depends on SPARC64
>> 249 help
>> 250 Say Y here to enable a faster early framebuffer boot console.
>> 251
>> 252 config SECCOMP
>> 253 bool "Enable seccomp to safely compute untrusted bytecode"
>> 254 depends on SPARC64 && PROC_FS
>> 255 default y
>> 256 help
>> 257 This kernel feature is useful for number crunching applications
>> 258 that may need to compute untrusted bytecode during their
>> 259 execution. By using pipes or other transports made available to
>> 260 the process as file descriptors supporting the read/write
>> 261 syscalls, it's possible to isolate those applications in
>> 262 their own address space using seccomp. Once seccomp is
>> 263 enabled via /proc/<pid>/seccomp, it cannot be disabled
>> 264 and the task is only allowed to execute a few safe syscalls
>> 265 defined by each seccomp mode.
>> 266
>> 267 If unsure, say Y. Only embedded should say N here.
338 268
339 config HOTPLUG_CPU 269 config HOTPLUG_CPU
340 bool "Support for hot-pluggable CPUs" 270 bool "Support for hot-pluggable CPUs"
341 select GENERIC_IRQ_MIGRATION !! 271 depends on SPARC64 && SMP
342 depends on SMP <<
343 help 272 help
344 Say Y here to allow turning CPUs off !! 273 Say Y here to experiment with turning CPUs off and on. CPUs
345 controlled through /sys/devices/syst !! 274 can be controlled through /sys/devices/system/cpu/cpu#.
346 <<
347 Say N if you want to disable CPU hot 275 Say N if you want to disable CPU hotplug.
348 276
349 config HAVE_EFFICIENT_UNALIGNED_STRING_OPS !! 277 if SPARC64
350 bool "Enable EFFICIENT_UNALIGNED_STRIN !! 278 source "drivers/cpufreq/Kconfig"
351 depends on CPU_CK807 || CPU_CK810 || C !! 279 endif
>> 280
>> 281 config US3_MC
>> 282 tristate "UltraSPARC-III Memory Controller driver"
>> 283 depends on SPARC64
>> 284 default y
>> 285 help
>> 286 This adds a driver for the UltraSPARC-III memory controller.
>> 287 Loading this driver allows exact mnemonic strings to be
>> 288 printed in the event of a memory error, so that the faulty DIMM
>> 289 on the motherboard can be matched to the error.
>> 290
>> 291 If in doubt, say Y, as this information can be very useful.
>> 292
>> 293 # Global things across all Sun machines.
>> 294 config GENERIC_LOCKBREAK
>> 295 bool
>> 296 default y
>> 297 depends on SPARC64 && SMP && PREEMPT
>> 298
>> 299 config NUMA
>> 300 bool "NUMA support"
>> 301 depends on SPARC64 && SMP
>> 302
>> 303 config NODES_SHIFT
>> 304 int "Maximum NUMA Nodes (as a power of 2)"
>> 305 range 4 5 if SPARC64
>> 306 default "5"
>> 307 depends on NEED_MULTIPLE_NODES
>> 308 help
>> 309 Specify the maximum number of NUMA Nodes available on the target
>> 310 system. Increases memory reserved to accommodate various tables.
>> 311
>> 312 # Some NUMA nodes have memory ranges that span
>> 313 # other nodes. Even though a pfn is valid and
>> 314 # between a node's start and end pfns, it may not
>> 315 # reside on that node. See memmap_init_zone()
>> 316 # for details.
>> 317 config NODES_SPAN_OTHER_NODES
>> 318 def_bool y
>> 319 depends on NEED_MULTIPLE_NODES
>> 320
>> 321 config ARCH_SELECT_MEMORY_MODEL
>> 322 def_bool y if SPARC64
>> 323
>> 324 config ARCH_SPARSEMEM_ENABLE
>> 325 def_bool y if SPARC64
>> 326 select SPARSEMEM_VMEMMAP_ENABLE
>> 327
>> 328 config ARCH_SPARSEMEM_DEFAULT
>> 329 def_bool y if SPARC64
>> 330
>> 331 config FORCE_MAX_ZONEORDER
>> 332 int "Maximum zone order"
>> 333 default "13"
>> 334 help
>> 335 The kernel memory allocator divides physically contiguous memory
>> 336 blocks into "zones", where each zone is a power of two number of
>> 337 pages. This option selects the largest power of two that the kernel
>> 338 keeps in the memory allocator. If you need to allocate very large
>> 339 blocks of physically contiguous memory, then you may need to
>> 340 increase this value.
>> 341
>> 342 This config option is actually maximum order plus one. For example,
>> 343 a value of 13 means that the largest free memory block is 2^12 pages.
>> 344
>> 345 source "mm/Kconfig"
>> 346
>> 347 if SPARC64
>> 348 source "kernel/power/Kconfig"
>> 349 endif
>> 350
>> 351 config SCHED_SMT
>> 352 bool "SMT (Hyperthreading) scheduler support"
>> 353 depends on SPARC64 && SMP
>> 354 default y
>> 355 help
>> 356 SMT scheduler support improves the CPU scheduler's decision making
>> 357 when dealing with SPARC cpus at a cost of slightly increased overhead
>> 358 in some places. If unsure say N here.
>> 359
>> 360 config SCHED_MC
>> 361 bool "Multi-core scheduler support"
>> 362 depends on SPARC64 && SMP
>> 363 default y
>> 364 help
>> 365 Multi-core scheduler support improves the CPU scheduler's decision
>> 366 making when dealing with multi-core CPU chips at a cost of slightly
>> 367 increased overhead in some places. If unsure say N here.
>> 368
>> 369 source "kernel/Kconfig.preempt"
>> 370
>> 371 config CMDLINE_BOOL
>> 372 bool "Default bootloader kernel arguments"
>> 373 depends on SPARC64
>> 374
>> 375 config CMDLINE
>> 376 string "Initial kernel command string"
>> 377 depends on CMDLINE_BOOL
>> 378 default "console=ttyS0,9600 root=/dev/sda1"
>> 379 help
>> 380 Say Y here if you want to be able to pass default arguments to
>> 381 the kernel. This will be overridden by the bootloader, if you
>> 382 use one (such as SILO). This is most useful if you want to boot
>> 383 a kernel from TFTP, and want default options to be available
>> 384 with having them passed on the command line.
>> 385
>> 386 NOTE: This option WILL override the PROM bootargs setting!
>> 387
>> 388 config SUN_PM
>> 389 bool
>> 390 default y if SPARC32
>> 391 help
>> 392 Enable power management and CPU standby features on supported
>> 393 SPARC platforms.
>> 394
>> 395 config SPARC_LED
>> 396 tristate "Sun4m LED driver"
>> 397 depends on SPARC32
>> 398 help
>> 399 This driver toggles the front-panel LED on sun4m systems
>> 400 in a user-specifiable manner. Its state can be probed
>> 401 by reading /proc/led and its blinking mode can be changed
>> 402 via writes to /proc/led
>> 403
>> 404 config SERIAL_CONSOLE
>> 405 bool
>> 406 depends on SPARC32
>> 407 default y
>> 408 ---help---
>> 409 If you say Y here, it will be possible to use a serial port as the
>> 410 system console (the system console is the device which receives all
>> 411 kernel messages and warnings and which allows logins in single user
>> 412 mode). This could be useful if some terminal or printer is connected
>> 413 to that serial port.
>> 414
>> 415 Even if you say Y here, the currently visible virtual console
>> 416 (/dev/tty0) will still be used as the system console by default, but
>> 417 you can alter that using a kernel command line option such as
>> 418 "console=ttyS1". (Try "man bootparam" or see the documentation of
>> 419 your boot loader (silo) about how to pass options to the kernel at
>> 420 boot time.)
>> 421
>> 422 If you don't have a graphics card installed and you say Y here, the
>> 423 kernel will automatically use the first serial line, /dev/ttyS0, as
>> 424 system console.
>> 425
>> 426 If unsure, say N.
>> 427
>> 428 config SPARC_LEON
>> 429 bool "Sparc Leon processor family"
>> 430 depends on SPARC32
>> 431 select USB_EHCI_BIG_ENDIAN_MMIO
>> 432 select USB_EHCI_BIG_ENDIAN_DESC
>> 433 select USB_UHCI_BIG_ENDIAN_MMIO
>> 434 select USB_UHCI_BIG_ENDIAN_DESC
>> 435 ---help---
>> 436 If you say Y here if you are running on a SPARC-LEON processor.
>> 437 The LEON processor is a synthesizable VHDL model of the
>> 438 SPARC-v8 standard. LEON is part of the GRLIB collection of
>> 439 IP cores that are distributed under GPL. GRLIB can be downloaded
>> 440 from www.gaisler.com. You can download a sparc-linux cross-compilation
>> 441 toolchain at www.gaisler.com.
>> 442
>> 443 if SPARC_LEON
>> 444 menu "U-Boot options"
>> 445
>> 446 config UBOOT_LOAD_ADDR
>> 447 hex "uImage Load Address"
>> 448 default 0x40004000
>> 449 ---help---
>> 450 U-Boot kernel load address, the address in physical address space
>> 451 where u-boot will place the Linux kernel before booting it.
>> 452 This address is normally the base address of main memory + 0x4000.
>> 453
>> 454 config UBOOT_FLASH_ADDR
>> 455 hex "uImage.o Load Address"
>> 456 default 0x00080000
>> 457 ---help---
>> 458 Optional setting only affecting the uImage.o ELF-image used to
>> 459 download the uImage file to the target using a ELF-loader other than
>> 460 U-Boot. It may for example be used to download an uImage to FLASH with
>> 461 the GRMON utility before even starting u-boot.
>> 462
>> 463 config UBOOT_ENTRY_ADDR
>> 464 hex "uImage Entry Address"
>> 465 default 0xf0004000
>> 466 ---help---
>> 467 Do not change this unless you know what you're doing. This is
>> 468 hardcoded by the SPARC32 and LEON port.
>> 469
>> 470 This is the virtual address u-boot jumps to when booting the Linux
>> 471 Kernel.
>> 472
>> 473 endmenu
>> 474 endif
>> 475
>> 476 endmenu
>> 477
>> 478 menu "Bus options (PCI etc.)"
>> 479 config SBUS
>> 480 bool
>> 481 default y
>> 482
>> 483 config SBUSCHAR
>> 484 bool
>> 485 default y
>> 486
>> 487 config SUN_LDOMS
>> 488 bool "Sun Logical Domains support"
>> 489 depends on SPARC64
>> 490 help
>> 491 Say Y here is you want to support virtual devices via
>> 492 Logical Domains.
>> 493
>> 494 config PCI
>> 495 bool "Support for PCI and PS/2 keyboard/mouse"
>> 496 help
>> 497 Find out whether your system includes a PCI bus. PCI is the name of
>> 498 a bus system, i.e. the way the CPU talks to the other stuff inside
>> 499 your box. If you say Y here, the kernel will include drivers and
>> 500 infrastructure code to support PCI bus devices.
>> 501
>> 502 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
>> 503 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
>> 504 All of these platforms are extremely obscure, so say N if unsure.
>> 505
>> 506 config PCI_DOMAINS
>> 507 def_bool PCI if SPARC64
>> 508
>> 509 config PCI_SYSCALL
>> 510 def_bool PCI
>> 511
>> 512 config PCIC_PCI
>> 513 bool
>> 514 depends on PCI && SPARC32 && !SPARC_LEON
>> 515 default y
>> 516
>> 517 config LEON_PCI
>> 518 bool
>> 519 depends on PCI && SPARC_LEON
>> 520 default y
>> 521
>> 522 config SPARC_GRPCI1
>> 523 bool "GRPCI Host Bridge Support"
>> 524 depends on LEON_PCI
>> 525 default y
>> 526 help
>> 527 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
>> 528 PCI host controller is typically found in GRLIB SPARC32/LEON
>> 529 systems. The driver has one property (all_pci_errors) controlled
>> 530 from the bootloader that makes the GRPCI to generate interrupts
>> 531 on detected PCI Parity and System errors.
>> 532
>> 533 config SPARC_GRPCI2
>> 534 bool "GRPCI2 Host Bridge Support"
>> 535 depends on LEON_PCI
>> 536 default y
>> 537 help
>> 538 Say Y here to include the GRPCI2 Host Bridge Driver.
>> 539
>> 540 source "drivers/pci/Kconfig"
>> 541
>> 542 source "drivers/pcmcia/Kconfig"
>> 543
>> 544 config SUN_OPENPROMFS
>> 545 tristate "Openprom tree appears in /proc/openprom"
352 help 546 help
353 Say Y here to enable EFFICIENT_UNALI !! 547 If you say Y, the OpenPROM device tree will be available as a
354 deal with unaligned access by hardwa !! 548 virtual file system, which you can mount to /proc/openprom by "mount
>> 549 -t openpromfs none /proc/openprom".
>> 550
>> 551 To compile the /proc/openprom support as a module, choose M here: the
>> 552 module will be called openpromfs.
>> 553
>> 554 Only choose N if you know in advance that you will not need to modify
>> 555 OpenPROM settings on the running system.
>> 556
>> 557 # Makefile helpers
>> 558 config SPARC64_PCI
>> 559 bool
>> 560 default y
>> 561 depends on SPARC64 && PCI
>> 562
>> 563 config SPARC64_PCI_MSI
>> 564 bool
>> 565 default y
>> 566 depends on SPARC64_PCI && PCI_MSI
355 567
356 endmenu 568 endmenu
357 569
358 source "arch/csky/Kconfig.platforms" !! 570 menu "Executable file formats"
>> 571
>> 572 source "fs/Kconfig.binfmt"
>> 573
>> 574 config COMPAT
>> 575 bool
>> 576 depends on SPARC64
>> 577 default y
>> 578 select COMPAT_BINFMT_ELF
>> 579 select HAVE_UID16
>> 580 select ARCH_WANT_OLD_COMPAT_IPC
>> 581 select COMPAT_OLD_SIGACTION
>> 582
>> 583 config SYSVIPC_COMPAT
>> 584 bool
>> 585 depends on COMPAT && SYSVIPC
>> 586 default y
>> 587
>> 588 endmenu
>> 589
>> 590 source "net/Kconfig"
>> 591
>> 592 source "drivers/Kconfig"
>> 593
>> 594 source "drivers/sbus/char/Kconfig"
>> 595
>> 596 source "fs/Kconfig"
>> 597
>> 598 source "arch/sparc/Kconfig.debug"
>> 599
>> 600 source "security/Kconfig"
>> 601
>> 602 source "crypto/Kconfig"
359 603
360 source "kernel/Kconfig.hz" !! 604 source "lib/Kconfig"
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