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