1 # SPDX-License-Identifier: GPL-2.0-only 1 # SPDX-License-Identifier: GPL-2.0-only
2 config CSKY !! 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_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
>> 17 select ARCH_MIGHT_HAVE_PC_SERIO
>> 18 select DMA_OPS
>> 19 select OF
>> 20 select OF_PROMTREE
>> 21 select HAVE_ASM_MODVERSIONS
>> 22 select HAVE_IDE
>> 23 select HAVE_OPROFILE
>> 24 select HAVE_ARCH_KGDB if !SMP || SPARC64
>> 25 select HAVE_ARCH_TRACEHOOK
>> 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 HAVE_NMI_WATCHDOG if SPARC64
>> 37 select HAVE_CBPF_JIT if SPARC32
>> 38 select HAVE_EBPF_JIT if SPARC64
>> 39 select HAVE_DEBUG_BUGVERBOSE
>> 40 select GENERIC_SMP_IDLE_THREAD
>> 41 select GENERIC_CLOCKEVENTS
>> 42 select GENERIC_STRNCPY_FROM_USER
>> 43 select GENERIC_STRNLEN_USER
>> 44 select MODULES_USE_ELF_RELA
>> 45 select PCI_SYSCALL if PCI
>> 46 select ODD_RT_SIGACTION
>> 47 select OLD_SIGSUSPEND
>> 48 select CPU_NO_EFFICIENT_FFS
>> 49 select LOCKDEP_SMALL if LOCKDEP
>> 50 select NEED_DMA_MAP_STATE
>> 51 select NEED_SG_DMA_LENGTH
>> 52
>> 53 config SPARC32
>> 54 def_bool !64BIT
4 select ARCH_32BIT_OFF_T 55 select ARCH_32BIT_OFF_T
5 select ARCH_HAS_CPU_CACHE_ALIASING <<
6 select ARCH_HAS_DMA_PREP_COHERENT <<
7 select ARCH_HAS_GCOV_PROFILE_ALL <<
8 select ARCH_HAS_SYNC_DMA_FOR_CPU 56 select ARCH_HAS_SYNC_DMA_FOR_CPU
9 select ARCH_HAS_SYNC_DMA_FOR_DEVICE <<
10 select ARCH_USE_BUILTIN_BSWAP <<
11 select ARCH_USE_QUEUED_RWLOCKS <<
12 select ARCH_USE_QUEUED_SPINLOCKS <<
13 select ARCH_HAS_CURRENT_STACK_POINTER <<
14 select ARCH_INLINE_READ_LOCK if !PREEM <<
15 select ARCH_INLINE_READ_LOCK_BH if !PR <<
16 select ARCH_INLINE_READ_LOCK_IRQ if !P <<
17 select ARCH_INLINE_READ_LOCK_IRQSAVE i <<
18 select ARCH_INLINE_READ_UNLOCK if !PRE <<
19 select ARCH_INLINE_READ_UNLOCK_BH if ! <<
20 select ARCH_INLINE_READ_UNLOCK_IRQ if <<
21 select ARCH_INLINE_READ_UNLOCK_IRQREST <<
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 57 select GENERIC_ATOMIC64
60 select GENERIC_CPU_DEVICES !! 58 select CLZ_TAB
61 select GENERIC_IRQ_CHIP !! 59 select HAVE_UID16
62 select GENERIC_IRQ_PROBE !! 60 select OLD_SIGACTION
63 select GENERIC_IRQ_SHOW !! 61
64 select GENERIC_IRQ_MULTI_HANDLER !! 62 config SPARC64
65 select GENERIC_SCHED_CLOCK !! 63 def_bool 64BIT
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 <<
72 select HAVE_ARCH_AUDITSYSCALL <<
73 select HAVE_ARCH_JUMP_LABEL if !CPU_CK <<
74 select HAVE_ARCH_JUMP_LABEL_RELATIVE <<
75 select HAVE_ARCH_MMAP_RND_BITS <<
76 select HAVE_ARCH_SECCOMP_FILTER <<
77 select HAVE_CONTEXT_TRACKING_USER <<
78 select HAVE_VIRT_CPU_ACCOUNTING_GEN <<
79 select HAVE_DEBUG_BUGVERBOSE <<
80 select HAVE_DEBUG_KMEMLEAK <<
81 select HAVE_DYNAMIC_FTRACE <<
82 select HAVE_DYNAMIC_FTRACE_WITH_REGS <<
83 select HAVE_GENERIC_VDSO <<
84 select HAVE_FUNCTION_TRACER 64 select HAVE_FUNCTION_TRACER
85 select HAVE_FUNCTION_GRAPH_TRACER 65 select HAVE_FUNCTION_GRAPH_TRACER
86 select HAVE_FUNCTION_ERROR_INJECTION !! 66 select HAVE_KRETPROBES
>> 67 select HAVE_KPROBES
>> 68 select MMU_GATHER_RCU_TABLE_FREE if SMP
>> 69 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
>> 70 select HAVE_DYNAMIC_FTRACE
87 select HAVE_FTRACE_MCOUNT_RECORD 71 select HAVE_FTRACE_MCOUNT_RECORD
88 select HAVE_KERNEL_GZIP !! 72 select HAVE_SYSCALL_TRACEPOINTS
89 select HAVE_KERNEL_LZO !! 73 select HAVE_CONTEXT_TRACKING
90 select HAVE_KERNEL_LZMA !! 74 select HAVE_TIF_NOHZ
91 select HAVE_KPROBES if !CPU_CK610 !! 75 select HAVE_DEBUG_KMEMLEAK
92 select HAVE_KPROBES_ON_FTRACE if !CPU_ !! 76 select IOMMU_HELPER
93 select HAVE_KRETPROBES if !CPU_CK610 !! 77 select SPARSE_IRQ
94 select HAVE_PAGE_SIZE_4KB !! 78 select RTC_DRV_CMOS
>> 79 select RTC_DRV_BQ4802
>> 80 select RTC_DRV_SUN4V
>> 81 select RTC_DRV_STARFIRE
95 select HAVE_PERF_EVENTS 82 select HAVE_PERF_EVENTS
96 select HAVE_PERF_REGS !! 83 select PERF_USE_VMALLOC
97 select HAVE_PERF_USER_STACK_DUMP !! 84 select ARCH_HAVE_NMI_SAFE_CMPXCHG
98 select HAVE_DMA_CONTIGUOUS !! 85 select HAVE_C_RECORDMCOUNT
>> 86 select HAVE_ARCH_AUDITSYSCALL
>> 87 select ARCH_SUPPORTS_ATOMIC_RMW
>> 88 select HAVE_NMI
99 select HAVE_REGS_AND_STACK_ACCESS_API 89 select HAVE_REGS_AND_STACK_ACCESS_API
100 select HAVE_STACKPROTECTOR !! 90 select ARCH_USE_QUEUED_RWLOCKS
101 select HAVE_SYSCALL_TRACEPOINTS !! 91 select ARCH_USE_QUEUED_SPINLOCKS
102 select HOTPLUG_CORE_SYNC_DEAD if HOTPL !! 92 select GENERIC_TIME_VSYSCALL
103 select LOCK_MM_AND_FIND_VMA !! 93 select ARCH_CLOCKSOURCE_DATA
104 select MAY_HAVE_SPARSE_IRQ !! 94 select ARCH_HAS_PTE_SPECIAL
105 select MODULES_USE_ELF_RELA if MODULES !! 95 select PCI_DOMAINS if PCI
106 select OF !! 96 select ARCH_HAS_GIGANTIC_PAGE
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 97
118 config LOCKDEP_SUPPORT !! 98 config ARCH_PROC_KCORE_TEXT
119 def_bool y 99 def_bool y
120 100
121 config ARCH_SUPPORTS_UPROBES !! 101 config CPU_BIG_ENDIAN
122 def_bool y if !CPU_CK610 !! 102 def_bool y
123 103
124 config CPU_HAS_CACHEV2 !! 104 config ARCH_ATU
125 bool 105 bool
>> 106 default y if SPARC64
126 107
127 config CPU_HAS_FPUV2 !! 108 config STACKTRACE_SUPPORT
128 bool 109 bool
>> 110 default y if SPARC64
129 111
130 config CPU_HAS_HILO !! 112 config LOCKDEP_SUPPORT
131 bool 113 bool
>> 114 default y if SPARC64
132 115
133 config CPU_HAS_TLBI !! 116 config ARCH_HIBERNATION_POSSIBLE
>> 117 def_bool y if SPARC64
>> 118
>> 119 config AUDIT_ARCH
134 bool 120 bool
>> 121 default y
>> 122
>> 123 config HAVE_SETUP_PER_CPU_AREA
>> 124 def_bool y if SPARC64
135 125
136 config CPU_HAS_LDSTEX !! 126 config NEED_PER_CPU_EMBED_FIRST_CHUNK
>> 127 def_bool y if SPARC64
>> 128
>> 129 config NEED_PER_CPU_PAGE_FIRST_CHUNK
>> 130 def_bool y if SPARC64
>> 131
>> 132 config MMU
137 bool 133 bool
138 help !! 134 default y
139 For SMP, CPU needs "ldex&stex" instr <<
140 135
141 config CPU_NEED_TLBSYNC !! 136 config HIGHMEM
142 bool 137 bool
>> 138 default y if SPARC32
143 139
144 config CPU_NEED_SOFTALIGN !! 140 config ZONE_DMA
145 bool 141 bool
>> 142 default y if SPARC32
146 143
147 config CPU_NO_USER_BKPT !! 144 config GENERIC_ISA_DMA
148 bool 145 bool
>> 146 default y if SPARC32
>> 147
>> 148 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
>> 149 def_bool y if SPARC64
>> 150
>> 151 config PGTABLE_LEVELS
>> 152 default 4 if 64BIT
>> 153 default 3
>> 154
>> 155 config ARCH_SUPPORTS_UPROBES
>> 156 def_bool y if SPARC64
>> 157
>> 158 menu "Processor type and features"
>> 159
>> 160 config SMP
>> 161 bool "Symmetric multi-processing support"
149 help 162 help
150 For abiv2 we couldn't use "trap 1" a !! 163 This enables support for systems with more than one CPU. If you have
151 abiv2 is 16/32bit instruction set an !! 164 a system with only one CPU, say N. If you have a system with more
152 So we need a 16bit instruction as us !! 165 than one CPU, say Y.
153 instruction exception. !! 166
154 In kernel we parse the *regs->pc to !! 167 If you say N here, the kernel will run on uni- and multiprocessor
>> 168 machines, but will use only one CPU of a multiprocessor machine. If
>> 169 you say Y here, the kernel will run on many, but not all,
>> 170 uniprocessor machines. On a uniprocessor machine, the kernel
>> 171 will run faster if you say N here.
>> 172
>> 173 People using multiprocessor machines who say Y here should also say
>> 174 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
>> 175 Management" code will be disabled if you say Y here.
155 176
156 config GENERIC_CALIBRATE_DELAY !! 177 See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO
157 def_bool y !! 178 available at <http://www.tldp.org/docs.html#howto>.
158 179
159 config GENERIC_CSUM !! 180 If you don't know what to do here, say N.
160 def_bool y !! 181
>> 182 config NR_CPUS
>> 183 int "Maximum number of CPUs"
>> 184 depends on SMP
>> 185 range 2 32 if SPARC32
>> 186 range 2 4096 if SPARC64
>> 187 default 32 if SPARC32
>> 188 default 4096 if SPARC64
>> 189
>> 190 source "kernel/Kconfig.hz"
161 191
162 config GENERIC_HWEIGHT 192 config GENERIC_HWEIGHT
163 def_bool y !! 193 bool
>> 194 default y
164 195
165 config MMU !! 196 config GENERIC_CALIBRATE_DELAY
166 def_bool y !! 197 bool
>> 198 default y
167 199
168 config STACKTRACE_SUPPORT !! 200 config ARCH_MAY_HAVE_PC_FDC
169 def_bool y !! 201 bool
>> 202 default y
170 203
171 config TIME_LOW_RES !! 204 config EMULATED_CMPXCHG
172 def_bool y !! 205 bool
>> 206 default y if SPARC32
>> 207 help
>> 208 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
>> 209 is emulated, and therefore it is not completely atomic.
173 210
174 config CPU_ASID_BITS !! 211 # Makefile helpers
175 int !! 212 config SPARC32_SMP
176 default "8" if (CPU_CK610 || CPU_C !! 213 bool
177 default "12" if (CPU_CK860) !! 214 default y
178 !! 215 depends on SPARC32 && SMP
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 <<
192 216
193 menu "Processor type and features" !! 217 config SPARC64_SMP
>> 218 bool
>> 219 default y
>> 220 depends on SPARC64 && SMP
>> 221
>> 222 config EARLYFB
>> 223 bool "Support for early boot text console"
>> 224 default y
>> 225 depends on SPARC64
>> 226 help
>> 227 Say Y here to enable a faster early framebuffer boot console.
>> 228
>> 229 config SECCOMP
>> 230 bool "Enable seccomp to safely compute untrusted bytecode"
>> 231 depends on SPARC64 && PROC_FS
>> 232 default y
>> 233 help
>> 234 This kernel feature is useful for number crunching applications
>> 235 that may need to compute untrusted bytecode during their
>> 236 execution. By using pipes or other transports made available to
>> 237 the process as file descriptors supporting the read/write
>> 238 syscalls, it's possible to isolate those applications in
>> 239 their own address space using seccomp. Once seccomp is
>> 240 enabled via /proc/<pid>/seccomp, it cannot be disabled
>> 241 and the task is only allowed to execute a few safe syscalls
>> 242 defined by each seccomp mode.
>> 243
>> 244 If unsure, say Y. Only embedded should say N here.
>> 245
>> 246 config HOTPLUG_CPU
>> 247 bool "Support for hot-pluggable CPUs"
>> 248 depends on SPARC64 && SMP
>> 249 help
>> 250 Say Y here to experiment with turning CPUs off and on. CPUs
>> 251 can be controlled through /sys/devices/system/cpu/cpu#.
>> 252 Say N if you want to disable CPU hotplug.
194 253
195 choice !! 254 if SPARC64
196 prompt "CPU MODEL" !! 255 source "drivers/cpufreq/Kconfig"
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 256 endif
301 257
302 config CPU_HAS_VDSP !! 258 config US3_MC
303 bool "CPU has VDSP coprocessor" !! 259 tristate "UltraSPARC-III Memory Controller driver"
304 depends on CPU_HAS_FPU && CPU_HAS_FPUV !! 260 depends on SPARC64
305 !! 261 default y
306 config CPU_HAS_FPU !! 262 help
307 bool "CPU has FPU coprocessor" !! 263 This adds a driver for the UltraSPARC-III memory controller.
308 depends on CPU_CK807 || CPU_CK810 || C !! 264 Loading this driver allows exact mnemonic strings to be
309 !! 265 printed in the event of a memory error, so that the faulty DIMM
310 config CPU_HAS_ICACHE_INS !! 266 on the motherboard can be matched to the error.
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 <<
317 267
318 config SMP !! 268 If in doubt, say Y, as this information can be very useful.
319 bool "Symmetric Multi-Processing (SMP) <<
320 depends on CPU_CK860 <<
321 default n <<
322 269
323 config NR_CPUS !! 270 # Global things across all Sun machines.
324 int "Maximum number of CPUs (2-32)" !! 271 config GENERIC_LOCKBREAK
325 range 2 32 !! 272 bool
326 depends on SMP !! 273 default y
327 default "4" !! 274 depends on SPARC64 && SMP && PREEMPTION
328 275
329 config HIGHMEM !! 276 config NUMA
330 bool "High Memory Support" !! 277 bool "NUMA support"
331 depends on !CPU_CK610 !! 278 depends on SPARC64 && SMP
332 select KMAP_LOCAL !! 279
>> 280 config NODES_SHIFT
>> 281 int "Maximum NUMA Nodes (as a power of 2)"
>> 282 range 4 5 if SPARC64
>> 283 default "5"
>> 284 depends on NEED_MULTIPLE_NODES
>> 285 help
>> 286 Specify the maximum number of NUMA Nodes available on the target
>> 287 system. Increases memory reserved to accommodate various tables.
>> 288
>> 289 config ARCH_SPARSEMEM_ENABLE
>> 290 def_bool y if SPARC64
>> 291 select SPARSEMEM_VMEMMAP_ENABLE
>> 292
>> 293 config ARCH_SPARSEMEM_DEFAULT
>> 294 def_bool y if SPARC64
>> 295
>> 296 config FORCE_MAX_ZONEORDER
>> 297 int "Maximum zone order"
>> 298 default "13"
>> 299 help
>> 300 The kernel memory allocator divides physically contiguous memory
>> 301 blocks into "zones", where each zone is a power of two number of
>> 302 pages. This option selects the largest power of two that the kernel
>> 303 keeps in the memory allocator. If you need to allocate very large
>> 304 blocks of physically contiguous memory, then you may need to
>> 305 increase this value.
>> 306
>> 307 This config option is actually maximum order plus one. For example,
>> 308 a value of 13 means that the largest free memory block is 2^12 pages.
>> 309
>> 310 if SPARC64
>> 311 source "kernel/power/Kconfig"
>> 312 endif
>> 313
>> 314 config SCHED_SMT
>> 315 bool "SMT (Hyperthreading) scheduler support"
>> 316 depends on SPARC64 && SMP
>> 317 default y
>> 318 help
>> 319 SMT scheduler support improves the CPU scheduler's decision making
>> 320 when dealing with SPARC cpus at a cost of slightly increased overhead
>> 321 in some places. If unsure say N here.
>> 322
>> 323 config SCHED_MC
>> 324 bool "Multi-core scheduler support"
>> 325 depends on SPARC64 && SMP
333 default y 326 default y
>> 327 help
>> 328 Multi-core scheduler support improves the CPU scheduler's decision
>> 329 making when dealing with multi-core CPU chips at a cost of slightly
>> 330 increased overhead in some places. If unsure say N here.
>> 331
>> 332 config CMDLINE_BOOL
>> 333 bool "Default bootloader kernel arguments"
>> 334 depends on SPARC64
>> 335
>> 336 config CMDLINE
>> 337 string "Initial kernel command string"
>> 338 depends on CMDLINE_BOOL
>> 339 default "console=ttyS0,9600 root=/dev/sda1"
>> 340 help
>> 341 Say Y here if you want to be able to pass default arguments to
>> 342 the kernel. This will be overridden by the bootloader, if you
>> 343 use one (such as SILO). This is most useful if you want to boot
>> 344 a kernel from TFTP, and want default options to be available
>> 345 with having them passed on the command line.
334 346
335 config DRAM_BASE !! 347 NOTE: This option WILL override the PROM bootargs setting!
336 hex "DRAM start addr (the same with me <<
337 default 0x0 <<
338 348
339 config HOTPLUG_CPU !! 349 config SUN_PM
340 bool "Support for hot-pluggable CPUs" !! 350 bool
341 select GENERIC_IRQ_MIGRATION !! 351 default y if SPARC32
342 depends on SMP <<
343 help 352 help
344 Say Y here to allow turning CPUs off !! 353 Enable power management and CPU standby features on supported
345 controlled through /sys/devices/syst !! 354 SPARC platforms.
346 355
347 Say N if you want to disable CPU hot !! 356 config SPARC_LED
>> 357 tristate "Sun4m LED driver"
>> 358 depends on SPARC32
>> 359 help
>> 360 This driver toggles the front-panel LED on sun4m systems
>> 361 in a user-specifiable manner. Its state can be probed
>> 362 by reading /proc/led and its blinking mode can be changed
>> 363 via writes to /proc/led
>> 364
>> 365 config SERIAL_CONSOLE
>> 366 bool
>> 367 depends on SPARC32
>> 368 default y
>> 369 help
>> 370 If you say Y here, it will be possible to use a serial port as the
>> 371 system console (the system console is the device which receives all
>> 372 kernel messages and warnings and which allows logins in single user
>> 373 mode). This could be useful if some terminal or printer is connected
>> 374 to that serial port.
>> 375
>> 376 Even if you say Y here, the currently visible virtual console
>> 377 (/dev/tty0) will still be used as the system console by default, but
>> 378 you can alter that using a kernel command line option such as
>> 379 "console=ttyS1". (Try "man bootparam" or see the documentation of
>> 380 your boot loader (silo) about how to pass options to the kernel at
>> 381 boot time.)
>> 382
>> 383 If you don't have a graphics card installed and you say Y here, the
>> 384 kernel will automatically use the first serial line, /dev/ttyS0, as
>> 385 system console.
>> 386
>> 387 If unsure, say N.
>> 388
>> 389 config SPARC_LEON
>> 390 bool "Sparc Leon processor family"
>> 391 depends on SPARC32
>> 392 select USB_EHCI_BIG_ENDIAN_MMIO
>> 393 select USB_EHCI_BIG_ENDIAN_DESC
>> 394 select USB_UHCI_BIG_ENDIAN_MMIO
>> 395 select USB_UHCI_BIG_ENDIAN_DESC
>> 396 help
>> 397 If you say Y here if you are running on a SPARC-LEON processor.
>> 398 The LEON processor is a synthesizable VHDL model of the
>> 399 SPARC-v8 standard. LEON is part of the GRLIB collection of
>> 400 IP cores that are distributed under GPL. GRLIB can be downloaded
>> 401 from www.gaisler.com. You can download a sparc-linux cross-compilation
>> 402 toolchain at www.gaisler.com.
>> 403
>> 404 if SPARC_LEON
>> 405 menu "U-Boot options"
>> 406
>> 407 config UBOOT_LOAD_ADDR
>> 408 hex "uImage Load Address"
>> 409 default 0x40004000
>> 410 help
>> 411 U-Boot kernel load address, the address in physical address space
>> 412 where u-boot will place the Linux kernel before booting it.
>> 413 This address is normally the base address of main memory + 0x4000.
>> 414
>> 415 config UBOOT_FLASH_ADDR
>> 416 hex "uImage.o Load Address"
>> 417 default 0x00080000
>> 418 help
>> 419 Optional setting only affecting the uImage.o ELF-image used to
>> 420 download the uImage file to the target using a ELF-loader other than
>> 421 U-Boot. It may for example be used to download an uImage to FLASH with
>> 422 the GRMON utility before even starting u-boot.
>> 423
>> 424 config UBOOT_ENTRY_ADDR
>> 425 hex "uImage Entry Address"
>> 426 default 0xf0004000
>> 427 help
>> 428 Do not change this unless you know what you're doing. This is
>> 429 hardcoded by the SPARC32 and LEON port.
>> 430
>> 431 This is the virtual address u-boot jumps to when booting the Linux
>> 432 Kernel.
>> 433
>> 434 endmenu
>> 435 endif
>> 436
>> 437 endmenu
>> 438
>> 439 menu "Bus options (PCI etc.)"
>> 440 config SBUS
>> 441 bool
>> 442 default y
>> 443
>> 444 config SBUSCHAR
>> 445 bool
>> 446 default y
348 447
349 config HAVE_EFFICIENT_UNALIGNED_STRING_OPS !! 448 config SUN_LDOMS
350 bool "Enable EFFICIENT_UNALIGNED_STRIN !! 449 bool "Sun Logical Domains support"
351 depends on CPU_CK807 || CPU_CK810 || C !! 450 depends on SPARC64
352 help 451 help
353 Say Y here to enable EFFICIENT_UNALI !! 452 Say Y here is you want to support virtual devices via
354 deal with unaligned access by hardwa !! 453 Logical Domains.
>> 454
>> 455 config PCIC_PCI
>> 456 bool
>> 457 depends on PCI && SPARC32 && !SPARC_LEON
>> 458 default y
>> 459
>> 460 config LEON_PCI
>> 461 bool
>> 462 depends on PCI && SPARC_LEON
>> 463 default y
>> 464
>> 465 config SPARC_GRPCI1
>> 466 bool "GRPCI Host Bridge Support"
>> 467 depends on LEON_PCI
>> 468 default y
>> 469 help
>> 470 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
>> 471 PCI host controller is typically found in GRLIB SPARC32/LEON
>> 472 systems. The driver has one property (all_pci_errors) controlled
>> 473 from the bootloader that makes the GRPCI to generate interrupts
>> 474 on detected PCI Parity and System errors.
>> 475
>> 476 config SPARC_GRPCI2
>> 477 bool "GRPCI2 Host Bridge Support"
>> 478 depends on LEON_PCI
>> 479 default y
>> 480 help
>> 481 Say Y here to include the GRPCI2 Host Bridge Driver.
>> 482
>> 483 config SUN_OPENPROMFS
>> 484 tristate "Openprom tree appears in /proc/openprom"
>> 485 help
>> 486 If you say Y, the OpenPROM device tree will be available as a
>> 487 virtual file system, which you can mount to /proc/openprom by "mount
>> 488 -t openpromfs none /proc/openprom".
>> 489
>> 490 To compile the /proc/openprom support as a module, choose M here: the
>> 491 module will be called openpromfs.
>> 492
>> 493 Only choose N if you know in advance that you will not need to modify
>> 494 OpenPROM settings on the running system.
>> 495
>> 496 # Makefile helpers
>> 497 config SPARC64_PCI
>> 498 bool
>> 499 default y
>> 500 depends on SPARC64 && PCI
>> 501
>> 502 config SPARC64_PCI_MSI
>> 503 bool
>> 504 default y
>> 505 depends on SPARC64_PCI && PCI_MSI
355 506
356 endmenu 507 endmenu
357 508
358 source "arch/csky/Kconfig.platforms" !! 509 config COMPAT
>> 510 bool
>> 511 depends on SPARC64
>> 512 default y
>> 513 select COMPAT_BINFMT_ELF
>> 514 select HAVE_UID16
>> 515 select ARCH_WANT_OLD_COMPAT_IPC
>> 516 select COMPAT_OLD_SIGACTION
>> 517
>> 518 config SYSVIPC_COMPAT
>> 519 bool
>> 520 depends on COMPAT && SYSVIPC
>> 521 default y
359 522
360 source "kernel/Kconfig.hz" !! 523 source "drivers/sbus/char/Kconfig"
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