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_ARCH_KGDB if !SMP || SPARC64
>> 23 select HAVE_ARCH_TRACEHOOK
>> 24 select HAVE_ARCH_SECCOMP if SPARC64
>> 25 select HAVE_EXIT_THREAD
>> 26 select HAVE_PCI
>> 27 select SYSCTL_EXCEPTION_TRACE
>> 28 select RTC_CLASS
>> 29 select RTC_DRV_M48T59
>> 30 select RTC_SYSTOHC
>> 31 select HAVE_ARCH_JUMP_LABEL if SPARC64
>> 32 select GENERIC_IRQ_SHOW
>> 33 select ARCH_WANT_IPC_PARSE_VERSION
>> 34 select GENERIC_PCI_IOMAP
>> 35 select HAVE_NMI_WATCHDOG if SPARC64
>> 36 select HAVE_CBPF_JIT if SPARC32
>> 37 select HAVE_EBPF_JIT if SPARC64
>> 38 select HAVE_DEBUG_BUGVERBOSE
>> 39 select GENERIC_SMP_IDLE_THREAD
>> 40 select MODULES_USE_ELF_RELA
>> 41 select PCI_SYSCALL if PCI
>> 42 select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
>> 43 select ODD_RT_SIGACTION
>> 44 select OLD_SIGSUSPEND
>> 45 select CPU_NO_EFFICIENT_FFS
>> 46 select LOCKDEP_SMALL if LOCKDEP
>> 47 select NEED_DMA_MAP_STATE
>> 48 select NEED_SG_DMA_LENGTH
>> 49 select TRACE_IRQFLAGS_SUPPORT
>> 50
>> 51 config SPARC32
>> 52 def_bool !64BIT
4 select ARCH_32BIT_OFF_T 53 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 54 select ARCH_HAS_SYNC_DMA_FOR_CPU
9 select ARCH_HAS_SYNC_DMA_FOR_DEVICE !! 55 select CLZ_TAB
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 56 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 HAVE_UID16
61 select GENERIC_IRQ_CHIP !! 59 select OLD_SIGACTION
62 select GENERIC_IRQ_PROBE !! 60 select ZONE_DMA
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 !! 64 select ALTERNATE_USER_ADDRESS_SPACE
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 65 select HAVE_FUNCTION_TRACER
85 select HAVE_FUNCTION_GRAPH_TRACER 66 select HAVE_FUNCTION_GRAPH_TRACER
86 select HAVE_FUNCTION_ERROR_INJECTION !! 67 select HAVE_KRETPROBES
>> 68 select HAVE_KPROBES
>> 69 select MMU_GATHER_RCU_TABLE_FREE if SMP
>> 70 select MMU_GATHER_MERGE_VMAS
>> 71 select MMU_GATHER_NO_FLUSH_CACHE
>> 72 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
>> 73 select HAVE_DYNAMIC_FTRACE
87 select HAVE_FTRACE_MCOUNT_RECORD 74 select HAVE_FTRACE_MCOUNT_RECORD
88 select HAVE_KERNEL_GZIP !! 75 select HAVE_SYSCALL_TRACEPOINTS
89 select HAVE_KERNEL_LZO !! 76 select HAVE_CONTEXT_TRACKING
90 select HAVE_KERNEL_LZMA !! 77 select HAVE_TIF_NOHZ
91 select HAVE_KPROBES if !CPU_CK610 !! 78 select HAVE_DEBUG_KMEMLEAK
92 select HAVE_KPROBES_ON_FTRACE if !CPU_ !! 79 select IOMMU_HELPER
93 select HAVE_KRETPROBES if !CPU_CK610 !! 80 select SPARSE_IRQ
94 select HAVE_PAGE_SIZE_4KB !! 81 select RTC_DRV_CMOS
>> 82 select RTC_DRV_BQ4802
>> 83 select RTC_DRV_SUN4V
>> 84 select RTC_DRV_STARFIRE
95 select HAVE_PERF_EVENTS 85 select HAVE_PERF_EVENTS
96 select HAVE_PERF_REGS !! 86 select PERF_USE_VMALLOC
97 select HAVE_PERF_USER_STACK_DUMP !! 87 select ARCH_HAVE_NMI_SAFE_CMPXCHG
98 select HAVE_DMA_CONTIGUOUS !! 88 select HAVE_C_RECORDMCOUNT
>> 89 select ARCH_HAS_VM_GET_PAGE_PROT
>> 90 select HAVE_ARCH_AUDITSYSCALL
>> 91 select ARCH_SUPPORTS_ATOMIC_RMW
>> 92 select ARCH_SUPPORTS_DEBUG_PAGEALLOC
>> 93 select HAVE_NMI
99 select HAVE_REGS_AND_STACK_ACCESS_API 94 select HAVE_REGS_AND_STACK_ACCESS_API
100 select HAVE_STACKPROTECTOR !! 95 select ARCH_USE_QUEUED_RWLOCKS
101 select HAVE_SYSCALL_TRACEPOINTS !! 96 select ARCH_USE_QUEUED_SPINLOCKS
102 select HOTPLUG_CORE_SYNC_DEAD if HOTPL !! 97 select GENERIC_TIME_VSYSCALL
103 select LOCK_MM_AND_FIND_VMA !! 98 select ARCH_CLOCKSOURCE_DATA
104 select MAY_HAVE_SPARSE_IRQ !! 99 select ARCH_HAS_PTE_SPECIAL
105 select MODULES_USE_ELF_RELA if MODULES !! 100 select PCI_DOMAINS if PCI
106 select OF !! 101 select ARCH_HAS_GIGANTIC_PAGE
107 select OF_EARLY_FLATTREE !! 102 select HAVE_SOFTIRQ_ON_OWN_STACK
108 select PERF_USE_VMALLOC if CPU_CK610 !! 103 select HAVE_SETUP_PER_CPU_AREA
109 select RTC_LIB !! 104 select NEED_PER_CPU_EMBED_FIRST_CHUNK
110 select TIMER_OF !! 105 select NEED_PER_CPU_PAGE_FIRST_CHUNK
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 <<
117 106
118 config LOCKDEP_SUPPORT !! 107 config ARCH_PROC_KCORE_TEXT
119 def_bool y 108 def_bool y
120 109
121 config ARCH_SUPPORTS_UPROBES !! 110 config CPU_BIG_ENDIAN
122 def_bool y if !CPU_CK610 !! 111 def_bool y
>> 112
>> 113 config ARCH_ATU
>> 114 bool
>> 115 default y if SPARC64
>> 116
>> 117 config STACKTRACE_SUPPORT
>> 118 bool
>> 119 default y if SPARC64
123 120
124 config CPU_HAS_CACHEV2 !! 121 config LOCKDEP_SUPPORT
125 bool 122 bool
>> 123 default y if SPARC64
>> 124
>> 125 config ARCH_HIBERNATION_POSSIBLE
>> 126 def_bool y if SPARC64
126 127
127 config CPU_HAS_FPUV2 !! 128 config AUDIT_ARCH
128 bool 129 bool
>> 130 default y
129 131
130 config CPU_HAS_HILO !! 132 config MMU
131 bool 133 bool
>> 134 default y
132 135
133 config CPU_HAS_TLBI !! 136 config HIGHMEM
134 bool 137 bool
>> 138 default y if SPARC32
>> 139 select KMAP_LOCAL
135 140
136 config CPU_HAS_LDSTEX !! 141 config GENERIC_ISA_DMA
137 bool 142 bool
>> 143 default y if SPARC32
>> 144
>> 145 config PGTABLE_LEVELS
>> 146 default 4 if 64BIT
>> 147 default 3
>> 148
>> 149 config ARCH_SUPPORTS_UPROBES
>> 150 def_bool y if SPARC64
>> 151
>> 152 menu "Processor type and features"
>> 153
>> 154 config SMP
>> 155 bool "Symmetric multi-processing support"
138 help 156 help
139 For SMP, CPU needs "ldex&stex" instr !! 157 This enables support for systems with more than one CPU. If you have
>> 158 a system with only one CPU, say N. If you have a system with more
>> 159 than one CPU, say Y.
>> 160
>> 161 If you say N here, the kernel will run on uni- and multiprocessor
>> 162 machines, but will use only one CPU of a multiprocessor machine. If
>> 163 you say Y here, the kernel will run on many, but not all,
>> 164 uniprocessor machines. On a uniprocessor machine, the kernel
>> 165 will run faster if you say N here.
>> 166
>> 167 People using multiprocessor machines who say Y here should also say
>> 168 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
>> 169 Management" code will be disabled if you say Y here.
140 170
141 config CPU_NEED_TLBSYNC !! 171 See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO
>> 172 available at <https://www.tldp.org/docs.html#howto>.
>> 173
>> 174 If you don't know what to do here, say N.
>> 175
>> 176 config NR_CPUS
>> 177 int "Maximum number of CPUs"
>> 178 depends on SMP
>> 179 range 2 32 if SPARC32
>> 180 range 2 4096 if SPARC64
>> 181 default 32 if SPARC32
>> 182 default 4096 if SPARC64
>> 183
>> 184 source "kernel/Kconfig.hz"
>> 185
>> 186 config GENERIC_HWEIGHT
>> 187 bool
>> 188 default y
>> 189
>> 190 config GENERIC_CALIBRATE_DELAY
142 bool 191 bool
>> 192 default y
143 193
144 config CPU_NEED_SOFTALIGN !! 194 config ARCH_MAY_HAVE_PC_FDC
145 bool 195 bool
>> 196 default y
146 197
147 config CPU_NO_USER_BKPT !! 198 config EMULATED_CMPXCHG
148 bool 199 bool
>> 200 default y if SPARC32
149 help 201 help
150 For abiv2 we couldn't use "trap 1" a !! 202 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
151 abiv2 is 16/32bit instruction set an !! 203 is emulated, and therefore it is not completely atomic.
152 So we need a 16bit instruction as us <<
153 instruction exception. <<
154 In kernel we parse the *regs->pc to <<
155 204
156 config GENERIC_CALIBRATE_DELAY !! 205 # Makefile helpers
157 def_bool y !! 206 config SPARC32_SMP
>> 207 bool
>> 208 default y
>> 209 depends on SPARC32 && SMP
158 210
159 config GENERIC_CSUM !! 211 config SPARC64_SMP
160 def_bool y !! 212 bool
>> 213 default y
>> 214 depends on SPARC64 && SMP
161 215
162 config GENERIC_HWEIGHT !! 216 config EARLYFB
163 def_bool y !! 217 bool "Support for early boot text console"
>> 218 default y
>> 219 depends on SPARC64
>> 220 help
>> 221 Say Y here to enable a faster early framebuffer boot console.
164 222
165 config MMU !! 223 config HOTPLUG_CPU
166 def_bool y !! 224 bool "Support for hot-pluggable CPUs"
>> 225 depends on SPARC64 && SMP
>> 226 help
>> 227 Say Y here to experiment with turning CPUs off and on. CPUs
>> 228 can be controlled through /sys/devices/system/cpu/cpu#.
>> 229 Say N if you want to disable CPU hotplug.
167 230
168 config STACKTRACE_SUPPORT !! 231 if SPARC64
169 def_bool y !! 232 source "drivers/cpufreq/Kconfig"
>> 233 endif
170 234
171 config TIME_LOW_RES !! 235 config US3_MC
172 def_bool y !! 236 tristate "UltraSPARC-III Memory Controller driver"
>> 237 depends on SPARC64
>> 238 default y
>> 239 help
>> 240 This adds a driver for the UltraSPARC-III memory controller.
>> 241 Loading this driver allows exact mnemonic strings to be
>> 242 printed in the event of a memory error, so that the faulty DIMM
>> 243 on the motherboard can be matched to the error.
173 244
174 config CPU_ASID_BITS !! 245 If in doubt, say Y, as this information can be very useful.
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 <<
192 246
193 menu "Processor type and features" !! 247 # Global things across all Sun machines.
>> 248 config GENERIC_LOCKBREAK
>> 249 bool
>> 250 default y
>> 251 depends on SPARC64 && SMP && PREEMPTION
194 252
195 choice !! 253 config NUMA
196 prompt "CPU MODEL" !! 254 bool "NUMA support"
197 default CPU_CK807 !! 255 depends on SPARC64 && SMP
198 !! 256
199 config CPU_CK610 !! 257 config NODES_SHIFT
200 bool "CSKY CPU ck610" !! 258 int "Maximum NUMA Nodes (as a power of 2)"
201 select CPU_NEED_TLBSYNC !! 259 range 4 5 if SPARC64
202 select CPU_NEED_SOFTALIGN !! 260 default "5"
203 select CPU_NO_USER_BKPT !! 261 depends on NUMA
204 !! 262 help
205 config CPU_CK810 !! 263 Specify the maximum number of NUMA Nodes available on the target
206 bool "CSKY CPU ck810" !! 264 system. Increases memory reserved to accommodate various tables.
207 select CPU_HAS_HILO !! 265
208 select CPU_NEED_TLBSYNC !! 266 config ARCH_SPARSEMEM_ENABLE
209 !! 267 def_bool y if SPARC64
210 config CPU_CK807 !! 268 select SPARSEMEM_VMEMMAP_ENABLE
211 bool "CSKY CPU ck807" !! 269
212 select CPU_HAS_HILO !! 270 config ARCH_SPARSEMEM_DEFAULT
213 !! 271 def_bool y if SPARC64
214 config CPU_CK860 !! 272
215 bool "CSKY CPU ck860" !! 273 config FORCE_MAX_ZONEORDER
216 select CPU_HAS_TLBI !! 274 int "Maximum zone order"
217 select CPU_HAS_CACHEV2 !! 275 default "13"
218 select CPU_HAS_LDSTEX !! 276 help
219 select CPU_HAS_FPUV2 !! 277 The kernel memory allocator divides physically contiguous memory
220 endchoice !! 278 blocks into "zones", where each zone is a power of two number of
221 !! 279 pages. This option selects the largest power of two that the kernel
222 choice !! 280 keeps in the memory allocator. If you need to allocate very large
223 prompt "PAGE OFFSET" !! 281 blocks of physically contiguous memory, then you may need to
224 default PAGE_OFFSET_80000000 !! 282 increase this value.
225 !! 283
226 config PAGE_OFFSET_80000000 !! 284 This config option is actually maximum order plus one. For example,
227 bool "PAGE OFFSET 2G (user:kernel = 2: !! 285 a value of 13 means that the largest free memory block is 2^12 pages.
228 !! 286
229 config PAGE_OFFSET_A0000000 !! 287 if SPARC64
230 bool "PAGE OFFSET 2.5G (user:kernel = !! 288 source "kernel/power/Kconfig"
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 289 endif
301 290
302 config CPU_HAS_VDSP !! 291 config SCHED_SMT
303 bool "CPU has VDSP coprocessor" !! 292 bool "SMT (Hyperthreading) scheduler support"
304 depends on CPU_HAS_FPU && CPU_HAS_FPUV !! 293 depends on SPARC64 && SMP
305 !! 294 default y
306 config CPU_HAS_FPU !! 295 help
307 bool "CPU has FPU coprocessor" !! 296 SMT scheduler support improves the CPU scheduler's decision making
308 depends on CPU_CK807 || CPU_CK810 || C !! 297 when dealing with SPARC cpus at a cost of slightly increased overhead
309 !! 298 in some places. If unsure say N here.
310 config CPU_HAS_ICACHE_INS !! 299
311 bool "CPU has Icache invalidate instru !! 300 config SCHED_MC
312 depends on CPU_HAS_CACHEV2 !! 301 bool "Multi-core scheduler support"
313 !! 302 depends on SPARC64 && SMP
314 config CPU_HAS_TEE !! 303 default y
315 bool "CPU has Trusted Execution Enviro !! 304 help
316 depends on CPU_CK810 !! 305 Multi-core scheduler support improves the CPU scheduler's decision
>> 306 making when dealing with multi-core CPU chips at a cost of slightly
>> 307 increased overhead in some places. If unsure say N here.
>> 308
>> 309 config CMDLINE_BOOL
>> 310 bool "Default bootloader kernel arguments"
>> 311 depends on SPARC64
>> 312
>> 313 config CMDLINE
>> 314 string "Initial kernel command string"
>> 315 depends on CMDLINE_BOOL
>> 316 default "console=ttyS0,9600 root=/dev/sda1"
>> 317 help
>> 318 Say Y here if you want to be able to pass default arguments to
>> 319 the kernel. This will be overridden by the bootloader, if you
>> 320 use one (such as SILO). This is most useful if you want to boot
>> 321 a kernel from TFTP, and want default options to be available
>> 322 with having them passed on the command line.
317 323
318 config SMP !! 324 NOTE: This option WILL override the PROM bootargs setting!
319 bool "Symmetric Multi-Processing (SMP) <<
320 depends on CPU_CK860 <<
321 default n <<
322 325
323 config NR_CPUS !! 326 config SUN_PM
324 int "Maximum number of CPUs (2-32)" !! 327 bool
325 range 2 32 !! 328 default y if SPARC32
326 depends on SMP !! 329 help
327 default "4" !! 330 Enable power management and CPU standby features on supported
>> 331 SPARC platforms.
328 332
329 config HIGHMEM !! 333 config SPARC_LED
330 bool "High Memory Support" !! 334 tristate "Sun4m LED driver"
331 depends on !CPU_CK610 !! 335 depends on SPARC32
332 select KMAP_LOCAL !! 336 help
>> 337 This driver toggles the front-panel LED on sun4m systems
>> 338 in a user-specifiable manner. Its state can be probed
>> 339 by reading /proc/led and its blinking mode can be changed
>> 340 via writes to /proc/led
>> 341
>> 342 config SERIAL_CONSOLE
>> 343 bool
>> 344 depends on SPARC32
333 default y 345 default y
>> 346 help
>> 347 If you say Y here, it will be possible to use a serial port as the
>> 348 system console (the system console is the device which receives all
>> 349 kernel messages and warnings and which allows logins in single user
>> 350 mode). This could be useful if some terminal or printer is connected
>> 351 to that serial port.
>> 352
>> 353 Even if you say Y here, the currently visible virtual console
>> 354 (/dev/tty0) will still be used as the system console by default, but
>> 355 you can alter that using a kernel command line option such as
>> 356 "console=ttyS1". (Try "man bootparam" or see the documentation of
>> 357 your boot loader (silo) about how to pass options to the kernel at
>> 358 boot time.)
>> 359
>> 360 If you don't have a graphics card installed and you say Y here, the
>> 361 kernel will automatically use the first serial line, /dev/ttyS0, as
>> 362 system console.
>> 363
>> 364 If unsure, say N.
>> 365
>> 366 config SPARC_LEON
>> 367 bool "Sparc Leon processor family"
>> 368 depends on SPARC32
>> 369 select USB_EHCI_BIG_ENDIAN_MMIO
>> 370 select USB_EHCI_BIG_ENDIAN_DESC
>> 371 select USB_UHCI_BIG_ENDIAN_MMIO
>> 372 select USB_UHCI_BIG_ENDIAN_DESC
>> 373 help
>> 374 If you say Y here if you are running on a SPARC-LEON processor.
>> 375 The LEON processor is a synthesizable VHDL model of the
>> 376 SPARC-v8 standard. LEON is part of the GRLIB collection of
>> 377 IP cores that are distributed under GPL. GRLIB can be downloaded
>> 378 from www.gaisler.com. You can download a sparc-linux cross-compilation
>> 379 toolchain at www.gaisler.com.
>> 380
>> 381 if SPARC_LEON
>> 382 menu "U-Boot options"
>> 383
>> 384 config UBOOT_LOAD_ADDR
>> 385 hex "uImage Load Address"
>> 386 default 0x40004000
>> 387 help
>> 388 U-Boot kernel load address, the address in physical address space
>> 389 where u-boot will place the Linux kernel before booting it.
>> 390 This address is normally the base address of main memory + 0x4000.
>> 391
>> 392 config UBOOT_FLASH_ADDR
>> 393 hex "uImage.o Load Address"
>> 394 default 0x00080000
>> 395 help
>> 396 Optional setting only affecting the uImage.o ELF-image used to
>> 397 download the uImage file to the target using a ELF-loader other than
>> 398 U-Boot. It may for example be used to download an uImage to FLASH with
>> 399 the GRMON utility before even starting u-boot.
>> 400
>> 401 config UBOOT_ENTRY_ADDR
>> 402 hex "uImage Entry Address"
>> 403 default 0xf0004000
>> 404 help
>> 405 Do not change this unless you know what you're doing. This is
>> 406 hardcoded by the SPARC32 and LEON port.
334 407
335 config DRAM_BASE !! 408 This is the virtual address u-boot jumps to when booting the Linux
336 hex "DRAM start addr (the same with me !! 409 Kernel.
337 default 0x0 <<
338 410
339 config HOTPLUG_CPU !! 411 endmenu
340 bool "Support for hot-pluggable CPUs" !! 412 endif
341 select GENERIC_IRQ_MIGRATION !! 413
342 depends on SMP !! 414 endmenu
>> 415
>> 416 menu "Bus options (PCI etc.)"
>> 417 config SBUS
>> 418 bool
>> 419 default y
>> 420
>> 421 config SBUSCHAR
>> 422 bool
>> 423 default y
>> 424
>> 425 config SUN_LDOMS
>> 426 bool "Sun Logical Domains support"
>> 427 depends on SPARC64
343 help 428 help
344 Say Y here to allow turning CPUs off !! 429 Say Y here is you want to support virtual devices via
345 controlled through /sys/devices/syst !! 430 Logical Domains.
346 431
347 Say N if you want to disable CPU hot !! 432 config PCIC_PCI
>> 433 bool
>> 434 depends on PCI && SPARC32 && !SPARC_LEON
>> 435 default y
>> 436
>> 437 config LEON_PCI
>> 438 bool
>> 439 depends on PCI && SPARC_LEON
>> 440 default y
>> 441
>> 442 config SPARC_GRPCI1
>> 443 bool "GRPCI Host Bridge Support"
>> 444 depends on LEON_PCI
>> 445 default y
>> 446 help
>> 447 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
>> 448 PCI host controller is typically found in GRLIB SPARC32/LEON
>> 449 systems. The driver has one property (all_pci_errors) controlled
>> 450 from the bootloader that makes the GRPCI to generate interrupts
>> 451 on detected PCI Parity and System errors.
>> 452
>> 453 config SPARC_GRPCI2
>> 454 bool "GRPCI2 Host Bridge Support"
>> 455 depends on LEON_PCI
>> 456 default y
>> 457 help
>> 458 Say Y here to include the GRPCI2 Host Bridge Driver.
348 459
349 config HAVE_EFFICIENT_UNALIGNED_STRING_OPS !! 460 config SUN_OPENPROMFS
350 bool "Enable EFFICIENT_UNALIGNED_STRIN !! 461 tristate "Openprom tree appears in /proc/openprom"
351 depends on CPU_CK807 || CPU_CK810 || C <<
352 help 462 help
353 Say Y here to enable EFFICIENT_UNALI !! 463 If you say Y, the OpenPROM device tree will be available as a
354 deal with unaligned access by hardwa !! 464 virtual file system, which you can mount to /proc/openprom by "mount
>> 465 -t openpromfs none /proc/openprom".
>> 466
>> 467 To compile the /proc/openprom support as a module, choose M here: the
>> 468 module will be called openpromfs.
>> 469
>> 470 Only choose N if you know in advance that you will not need to modify
>> 471 OpenPROM settings on the running system.
>> 472
>> 473 # Makefile helpers
>> 474 config SPARC64_PCI
>> 475 bool
>> 476 default y
>> 477 depends on SPARC64 && PCI
>> 478
>> 479 config SPARC64_PCI_MSI
>> 480 bool
>> 481 default y
>> 482 depends on SPARC64_PCI && PCI_MSI
355 483
356 endmenu 484 endmenu
357 485
358 source "arch/csky/Kconfig.platforms" !! 486 config COMPAT
>> 487 bool
>> 488 depends on SPARC64
>> 489 default y
>> 490 select HAVE_UID16
>> 491 select ARCH_WANT_OLD_COMPAT_IPC
>> 492 select COMPAT_OLD_SIGACTION
359 493
360 source "kernel/Kconfig.hz" !! 494 source "drivers/sbus/char/Kconfig"
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