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 ARCH_HAS_CPU_FINALIZE_INIT if !SMP
>> 51 select GENERIC_ATOMIC64
>> 52 select CLZ_TAB
>> 53 select HAVE_UID16
>> 54 select OLD_SIGACTION
>> 55
>> 56 config SPARC64
>> 57 def_bool 64BIT
84 select HAVE_FUNCTION_TRACER 58 select HAVE_FUNCTION_TRACER
85 select HAVE_FUNCTION_GRAPH_TRACER 59 select HAVE_FUNCTION_GRAPH_TRACER
86 select HAVE_FUNCTION_ERROR_INJECTION !! 60 select HAVE_KRETPROBES
>> 61 select HAVE_KPROBES
>> 62 select HAVE_RCU_TABLE_FREE if SMP
>> 63 select HAVE_MEMBLOCK
>> 64 select HAVE_MEMBLOCK_NODE_MAP
>> 65 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
>> 66 select HAVE_DYNAMIC_FTRACE
87 select HAVE_FTRACE_MCOUNT_RECORD 67 select HAVE_FTRACE_MCOUNT_RECORD
88 select HAVE_KERNEL_GZIP !! 68 select HAVE_SYSCALL_TRACEPOINTS
89 select HAVE_KERNEL_LZO !! 69 select HAVE_CONTEXT_TRACKING
90 select HAVE_KERNEL_LZMA !! 70 select HAVE_DEBUG_KMEMLEAK
91 select HAVE_KPROBES if !CPU_CK610 !! 71 select SPARSE_IRQ
92 select HAVE_KPROBES_ON_FTRACE if !CPU_ !! 72 select RTC_DRV_CMOS
93 select HAVE_KRETPROBES if !CPU_CK610 !! 73 select RTC_DRV_BQ4802
94 select HAVE_PAGE_SIZE_4KB !! 74 select RTC_DRV_SUN4V
>> 75 select RTC_DRV_STARFIRE
95 select HAVE_PERF_EVENTS 76 select HAVE_PERF_EVENTS
96 select HAVE_PERF_REGS !! 77 select PERF_USE_VMALLOC
97 select HAVE_PERF_USER_STACK_DUMP !! 78 select IRQ_PREFLOW_FASTEOI
98 select HAVE_DMA_CONTIGUOUS !! 79 select ARCH_HAVE_NMI_SAFE_CMPXCHG
>> 80 select HAVE_C_RECORDMCOUNT
>> 81 select NO_BOOTMEM
>> 82 select HAVE_ARCH_AUDITSYSCALL
>> 83 select ARCH_SUPPORTS_ATOMIC_RMW
>> 84 select HAVE_NMI
99 select HAVE_REGS_AND_STACK_ACCESS_API 85 select HAVE_REGS_AND_STACK_ACCESS_API
100 select HAVE_STACKPROTECTOR !! 86 select ARCH_USE_QUEUED_RWLOCKS
101 select HAVE_SYSCALL_TRACEPOINTS !! 87 select ARCH_USE_QUEUED_SPINLOCKS
102 select HOTPLUG_CORE_SYNC_DEAD if HOTPL <<
103 select LOCK_MM_AND_FIND_VMA <<
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 88
118 config LOCKDEP_SUPPORT !! 89 config ARCH_DEFCONFIG
>> 90 string
>> 91 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
>> 92 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
>> 93
>> 94 config ARCH_PROC_KCORE_TEXT
119 def_bool y 95 def_bool y
120 96
121 config ARCH_SUPPORTS_UPROBES !! 97 config CPU_BIG_ENDIAN
122 def_bool y if !CPU_CK610 !! 98 def_bool y
123 99
124 config CPU_HAS_CACHEV2 !! 100 config CPU_BIG_ENDIAN
>> 101 def_bool y
>> 102
>> 103 config ARCH_ATU
125 bool 104 bool
>> 105 default y if SPARC64
126 106
127 config CPU_HAS_FPUV2 !! 107 config ARCH_DMA_ADDR_T_64BIT
128 bool 108 bool
>> 109 default y if ARCH_ATU
129 110
130 config CPU_HAS_HILO !! 111 config IOMMU_HELPER
131 bool 112 bool
>> 113 default y if SPARC64
132 114
133 config CPU_HAS_TLBI !! 115 config STACKTRACE_SUPPORT
134 bool 116 bool
>> 117 default y if SPARC64
135 118
136 config CPU_HAS_LDSTEX !! 119 config LOCKDEP_SUPPORT
137 bool 120 bool
138 help !! 121 default y if SPARC64
139 For SMP, CPU needs "ldex&stex" instr !! 122
>> 123 config ARCH_HIBERNATION_POSSIBLE
>> 124 def_bool y if SPARC64
140 125
141 config CPU_NEED_TLBSYNC !! 126 config AUDIT_ARCH
142 bool 127 bool
>> 128 default y
>> 129
>> 130 config HAVE_SETUP_PER_CPU_AREA
>> 131 def_bool y if SPARC64
>> 132
>> 133 config NEED_PER_CPU_EMBED_FIRST_CHUNK
>> 134 def_bool y if SPARC64
143 135
144 config CPU_NEED_SOFTALIGN !! 136 config NEED_PER_CPU_PAGE_FIRST_CHUNK
>> 137 def_bool y if SPARC64
>> 138
>> 139 config MMU
145 bool 140 bool
>> 141 default y
146 142
147 config CPU_NO_USER_BKPT !! 143 config HIGHMEM
148 bool 144 bool
149 help !! 145 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 <<
155 146
156 config GENERIC_CALIBRATE_DELAY !! 147 config ZONE_DMA
157 def_bool y !! 148 bool
>> 149 default y if SPARC32
158 150
159 config GENERIC_CSUM !! 151 config NEED_DMA_MAP_STATE
160 def_bool y 152 def_bool y
161 153
162 config GENERIC_HWEIGHT !! 154 config NEED_SG_DMA_LENGTH
163 def_bool y 155 def_bool y
164 156
165 config MMU !! 157 config GENERIC_ISA_DMA
166 def_bool y !! 158 bool
>> 159 default y if SPARC32
167 160
168 config STACKTRACE_SUPPORT !! 161 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
169 def_bool y !! 162 def_bool y if SPARC64
170 163
171 config TIME_LOW_RES !! 164 config PGTABLE_LEVELS
172 def_bool y !! 165 default 4 if 64BIT
>> 166 default 3
173 167
174 config CPU_ASID_BITS !! 168 config ARCH_SUPPORTS_UPROBES
175 int !! 169 def_bool y if SPARC64
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 <<
192 170
193 menu "Processor type and features" !! 171 source "init/Kconfig"
194 172
195 choice !! 173 source "kernel/Kconfig.freezer"
196 prompt "CPU MODEL" <<
197 default CPU_CK807 <<
198 <<
199 config CPU_CK610 <<
200 bool "CSKY CPU ck610" <<
201 select CPU_NEED_TLBSYNC <<
202 select CPU_NEED_SOFTALIGN <<
203 select CPU_NO_USER_BKPT <<
204 <<
205 config CPU_CK810 <<
206 bool "CSKY CPU ck810" <<
207 select CPU_HAS_HILO <<
208 select CPU_NEED_TLBSYNC <<
209 <<
210 config CPU_CK807 <<
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 <<
301 174
302 config CPU_HAS_VDSP !! 175 menu "Processor type and features"
303 bool "CPU has VDSP coprocessor" <<
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 <<
317 176
318 config SMP 177 config SMP
319 bool "Symmetric Multi-Processing (SMP) !! 178 bool "Symmetric multi-processing support"
320 depends on CPU_CK860 !! 179 ---help---
321 default n !! 180 This enables support for systems with more than one CPU. If you have
>> 181 a system with only one CPU, say N. If you have a system with more
>> 182 than one CPU, say Y.
>> 183
>> 184 If you say N here, the kernel will run on uni- and multiprocessor
>> 185 machines, but will use only one CPU of a multiprocessor machine. If
>> 186 you say Y here, the kernel will run on many, but not all,
>> 187 uniprocessor machines. On a uniprocessor machine, the kernel
>> 188 will run faster if you say N here.
>> 189
>> 190 People using multiprocessor machines who say Y here should also say
>> 191 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
>> 192 Management" code will be disabled if you say Y here.
>> 193
>> 194 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
>> 195 available at <http://www.tldp.org/docs.html#howto>.
>> 196
>> 197 If you don't know what to do here, say N.
322 198
323 config NR_CPUS 199 config NR_CPUS
324 int "Maximum number of CPUs (2-32)" !! 200 int "Maximum number of CPUs"
325 range 2 32 <<
326 depends on SMP 201 depends on SMP
327 default "4" !! 202 range 2 32 if SPARC32
>> 203 range 2 4096 if SPARC64
>> 204 default 32 if SPARC32
>> 205 default 4096 if SPARC64
328 206
329 config HIGHMEM !! 207 source kernel/Kconfig.hz
330 bool "High Memory Support" !! 208
331 depends on !CPU_CK610 !! 209 config RWSEM_GENERIC_SPINLOCK
332 select KMAP_LOCAL !! 210 bool
>> 211 default y if SPARC32
>> 212
>> 213 config RWSEM_XCHGADD_ALGORITHM
>> 214 bool
>> 215 default y if SPARC64
>> 216
>> 217 config GENERIC_HWEIGHT
>> 218 bool
333 default y 219 default y
334 220
335 config DRAM_BASE !! 221 config GENERIC_CALIBRATE_DELAY
336 hex "DRAM start addr (the same with me !! 222 bool
337 default 0x0 !! 223 default y
>> 224
>> 225 config ARCH_MAY_HAVE_PC_FDC
>> 226 bool
>> 227 default y
>> 228
>> 229 config EMULATED_CMPXCHG
>> 230 bool
>> 231 default y if SPARC32
>> 232 help
>> 233 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
>> 234 is emulated, and therefore it is not completely atomic.
>> 235
>> 236 # Makefile helpers
>> 237 config SPARC32_SMP
>> 238 bool
>> 239 default y
>> 240 depends on SPARC32 && SMP
>> 241
>> 242 config SPARC64_SMP
>> 243 bool
>> 244 default y
>> 245 depends on SPARC64 && SMP
>> 246
>> 247 config EARLYFB
>> 248 bool "Support for early boot text console"
>> 249 default y
>> 250 depends on SPARC64
>> 251 help
>> 252 Say Y here to enable a faster early framebuffer boot console.
>> 253
>> 254 config SECCOMP
>> 255 bool "Enable seccomp to safely compute untrusted bytecode"
>> 256 depends on SPARC64 && PROC_FS
>> 257 default y
>> 258 help
>> 259 This kernel feature is useful for number crunching applications
>> 260 that may need to compute untrusted bytecode during their
>> 261 execution. By using pipes or other transports made available to
>> 262 the process as file descriptors supporting the read/write
>> 263 syscalls, it's possible to isolate those applications in
>> 264 their own address space using seccomp. Once seccomp is
>> 265 enabled via /proc/<pid>/seccomp, it cannot be disabled
>> 266 and the task is only allowed to execute a few safe syscalls
>> 267 defined by each seccomp mode.
>> 268
>> 269 If unsure, say Y. Only embedded should say N here.
338 270
339 config HOTPLUG_CPU 271 config HOTPLUG_CPU
340 bool "Support for hot-pluggable CPUs" 272 bool "Support for hot-pluggable CPUs"
341 select GENERIC_IRQ_MIGRATION !! 273 depends on SPARC64 && SMP
342 depends on SMP <<
343 help 274 help
344 Say Y here to allow turning CPUs off !! 275 Say Y here to experiment with turning CPUs off and on. CPUs
345 controlled through /sys/devices/syst !! 276 can be controlled through /sys/devices/system/cpu/cpu#.
346 <<
347 Say N if you want to disable CPU hot 277 Say N if you want to disable CPU hotplug.
348 278
349 config HAVE_EFFICIENT_UNALIGNED_STRING_OPS !! 279 if SPARC64
350 bool "Enable EFFICIENT_UNALIGNED_STRIN !! 280 source "drivers/cpufreq/Kconfig"
351 depends on CPU_CK807 || CPU_CK810 || C !! 281 endif
>> 282
>> 283 config US3_MC
>> 284 tristate "UltraSPARC-III Memory Controller driver"
>> 285 depends on SPARC64
>> 286 default y
>> 287 help
>> 288 This adds a driver for the UltraSPARC-III memory controller.
>> 289 Loading this driver allows exact mnemonic strings to be
>> 290 printed in the event of a memory error, so that the faulty DIMM
>> 291 on the motherboard can be matched to the error.
>> 292
>> 293 If in doubt, say Y, as this information can be very useful.
>> 294
>> 295 # Global things across all Sun machines.
>> 296 config GENERIC_LOCKBREAK
>> 297 bool
>> 298 default y
>> 299 depends on SPARC64 && SMP && PREEMPT
>> 300
>> 301 config NUMA
>> 302 bool "NUMA support"
>> 303 depends on SPARC64 && SMP
>> 304
>> 305 config NODES_SHIFT
>> 306 int "Maximum NUMA Nodes (as a power of 2)"
>> 307 range 4 5 if SPARC64
>> 308 default "5"
>> 309 depends on NEED_MULTIPLE_NODES
>> 310 help
>> 311 Specify the maximum number of NUMA Nodes available on the target
>> 312 system. Increases memory reserved to accommodate various tables.
>> 313
>> 314 # Some NUMA nodes have memory ranges that span
>> 315 # other nodes. Even though a pfn is valid and
>> 316 # between a node's start and end pfns, it may not
>> 317 # reside on that node. See memmap_init_zone()
>> 318 # for details.
>> 319 config NODES_SPAN_OTHER_NODES
>> 320 def_bool y
>> 321 depends on NEED_MULTIPLE_NODES
>> 322
>> 323 config ARCH_SELECT_MEMORY_MODEL
>> 324 def_bool y if SPARC64
>> 325
>> 326 config ARCH_SPARSEMEM_ENABLE
>> 327 def_bool y if SPARC64
>> 328 select SPARSEMEM_VMEMMAP_ENABLE
>> 329
>> 330 config ARCH_SPARSEMEM_DEFAULT
>> 331 def_bool y if SPARC64
>> 332
>> 333 config FORCE_MAX_ZONEORDER
>> 334 int "Maximum zone order"
>> 335 default "13"
352 help 336 help
353 Say Y here to enable EFFICIENT_UNALI !! 337 The kernel memory allocator divides physically contiguous memory
354 deal with unaligned access by hardwa !! 338 blocks into "zones", where each zone is a power of two number of
>> 339 pages. This option selects the largest power of two that the kernel
>> 340 keeps in the memory allocator. If you need to allocate very large
>> 341 blocks of physically contiguous memory, then you may need to
>> 342 increase this value.
>> 343
>> 344 This config option is actually maximum order plus one. For example,
>> 345 a value of 13 means that the largest free memory block is 2^12 pages.
>> 346
>> 347 source "mm/Kconfig"
>> 348
>> 349 if SPARC64
>> 350 source "kernel/power/Kconfig"
>> 351 endif
>> 352
>> 353 config SCHED_SMT
>> 354 bool "SMT (Hyperthreading) scheduler support"
>> 355 depends on SPARC64 && SMP
>> 356 default y
>> 357 help
>> 358 SMT scheduler support improves the CPU scheduler's decision making
>> 359 when dealing with SPARC cpus at a cost of slightly increased overhead
>> 360 in some places. If unsure say N here.
>> 361
>> 362 config SCHED_MC
>> 363 bool "Multi-core scheduler support"
>> 364 depends on SPARC64 && SMP
>> 365 default y
>> 366 help
>> 367 Multi-core scheduler support improves the CPU scheduler's decision
>> 368 making when dealing with multi-core CPU chips at a cost of slightly
>> 369 increased overhead in some places. If unsure say N here.
>> 370
>> 371 source "kernel/Kconfig.preempt"
>> 372
>> 373 config CMDLINE_BOOL
>> 374 bool "Default bootloader kernel arguments"
>> 375 depends on SPARC64
>> 376
>> 377 config CMDLINE
>> 378 string "Initial kernel command string"
>> 379 depends on CMDLINE_BOOL
>> 380 default "console=ttyS0,9600 root=/dev/sda1"
>> 381 help
>> 382 Say Y here if you want to be able to pass default arguments to
>> 383 the kernel. This will be overridden by the bootloader, if you
>> 384 use one (such as SILO). This is most useful if you want to boot
>> 385 a kernel from TFTP, and want default options to be available
>> 386 with having them passed on the command line.
>> 387
>> 388 NOTE: This option WILL override the PROM bootargs setting!
>> 389
>> 390 config SUN_PM
>> 391 bool
>> 392 default y if SPARC32
>> 393 help
>> 394 Enable power management and CPU standby features on supported
>> 395 SPARC platforms.
>> 396
>> 397 config SPARC_LED
>> 398 tristate "Sun4m LED driver"
>> 399 depends on SPARC32
>> 400 help
>> 401 This driver toggles the front-panel LED on sun4m systems
>> 402 in a user-specifiable manner. Its state can be probed
>> 403 by reading /proc/led and its blinking mode can be changed
>> 404 via writes to /proc/led
>> 405
>> 406 config SERIAL_CONSOLE
>> 407 bool
>> 408 depends on SPARC32
>> 409 default y
>> 410 ---help---
>> 411 If you say Y here, it will be possible to use a serial port as the
>> 412 system console (the system console is the device which receives all
>> 413 kernel messages and warnings and which allows logins in single user
>> 414 mode). This could be useful if some terminal or printer is connected
>> 415 to that serial port.
>> 416
>> 417 Even if you say Y here, the currently visible virtual console
>> 418 (/dev/tty0) will still be used as the system console by default, but
>> 419 you can alter that using a kernel command line option such as
>> 420 "console=ttyS1". (Try "man bootparam" or see the documentation of
>> 421 your boot loader (silo) about how to pass options to the kernel at
>> 422 boot time.)
>> 423
>> 424 If you don't have a graphics card installed and you say Y here, the
>> 425 kernel will automatically use the first serial line, /dev/ttyS0, as
>> 426 system console.
>> 427
>> 428 If unsure, say N.
>> 429
>> 430 config SPARC_LEON
>> 431 bool "Sparc Leon processor family"
>> 432 depends on SPARC32
>> 433 select USB_EHCI_BIG_ENDIAN_MMIO
>> 434 select USB_EHCI_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
355 475
356 endmenu 476 endmenu
357 477
358 source "arch/csky/Kconfig.platforms" !! 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"
>> 546 help
>> 547 If you say Y, the OpenPROM device tree will be available as a
>> 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
>> 567
>> 568 endmenu
>> 569
>> 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 if 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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