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 "$(ARCH)" = "sparc"
4 select ARCH_32BIT_OFF_T !! 4 default "$(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
5 select ARCH_HAS_CPU_CACHE_ALIASING 16 select ARCH_HAS_CPU_CACHE_ALIASING
6 select ARCH_HAS_DMA_PREP_COHERENT !! 17 select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
7 select ARCH_HAS_GCOV_PROFILE_ALL !! 18 select ARCH_MIGHT_HAVE_PC_SERIO
>> 19 select DMA_OPS
>> 20 select OF
>> 21 select OF_PROMTREE
>> 22 select HAVE_ASM_MODVERSIONS
>> 23 select HAVE_ARCH_KGDB if !SMP || SPARC64
>> 24 select HAVE_ARCH_TRACEHOOK
>> 25 select HAVE_ARCH_SECCOMP if SPARC64
>> 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 HAS_IOPORT
>> 37 select HAVE_HARDLOCKUP_DETECTOR_SPARC64 if SPARC64
>> 38 select HAVE_CBPF_JIT if SPARC32
>> 39 select HAVE_EBPF_JIT if SPARC64
>> 40 select HAVE_DEBUG_BUGVERBOSE
>> 41 select GENERIC_SMP_IDLE_THREAD
>> 42 select MODULES_USE_ELF_RELA
>> 43 select PCI_SYSCALL if PCI
>> 44 select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
>> 45 select ODD_RT_SIGACTION
>> 46 select OLD_SIGSUSPEND
>> 47 select CPU_NO_EFFICIENT_FFS
>> 48 select LOCKDEP_SMALL if LOCKDEP
>> 49 select NEED_DMA_MAP_STATE
>> 50 select NEED_SG_DMA_LENGTH
>> 51 select TRACE_IRQFLAGS_SUPPORT
>> 52
>> 53 config SPARC32
>> 54 def_bool !64BIT
>> 55 select ARCH_32BIT_OFF_T
>> 56 select ARCH_HAS_CPU_FINALIZE_INIT if !SMP
8 select ARCH_HAS_SYNC_DMA_FOR_CPU 57 select ARCH_HAS_SYNC_DMA_FOR_CPU
9 select ARCH_HAS_SYNC_DMA_FOR_DEVICE !! 58 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 59 select DMA_DIRECT_REMAP
49 select IRQ_DOMAIN !! 60 select GENERIC_ATOMIC64
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 61 select GENERIC_LIB_CMPDI2
57 select GENERIC_LIB_UCMPDI2 62 select GENERIC_LIB_UCMPDI2
58 select GENERIC_ALLOCATOR !! 63 select HAVE_UID16
59 select GENERIC_ATOMIC64 !! 64 select HAVE_PAGE_SIZE_4KB
60 select GENERIC_CPU_DEVICES !! 65 select LOCK_MM_AND_FIND_VMA
61 select GENERIC_IRQ_CHIP !! 66 select OLD_SIGACTION
62 select GENERIC_IRQ_PROBE !! 67 select ZONE_DMA
63 select GENERIC_IRQ_SHOW !! 68
64 select GENERIC_IRQ_MULTI_HANDLER !! 69 config SPARC64
65 select GENERIC_SCHED_CLOCK !! 70 def_bool 64BIT
66 select GENERIC_SMP_IDLE_THREAD !! 71 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 72 select HAVE_FUNCTION_TRACER
85 select HAVE_FUNCTION_GRAPH_TRACER 73 select HAVE_FUNCTION_GRAPH_TRACER
86 select HAVE_FUNCTION_ERROR_INJECTION !! 74 select HAVE_KRETPROBES
>> 75 select HAVE_KPROBES
>> 76 select MMU_GATHER_RCU_TABLE_FREE if SMP
>> 77 select MMU_GATHER_MERGE_VMAS
>> 78 select MMU_GATHER_NO_FLUSH_CACHE
>> 79 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
>> 80 select HAVE_DYNAMIC_FTRACE
87 select HAVE_FTRACE_MCOUNT_RECORD 81 select HAVE_FTRACE_MCOUNT_RECORD
88 select HAVE_KERNEL_GZIP !! 82 select HAVE_PAGE_SIZE_8KB
89 select HAVE_KERNEL_LZO !! 83 select HAVE_SYSCALL_TRACEPOINTS
90 select HAVE_KERNEL_LZMA !! 84 select HAVE_CONTEXT_TRACKING_USER
91 select HAVE_KPROBES if !CPU_CK610 !! 85 select HAVE_TIF_NOHZ
92 select HAVE_KPROBES_ON_FTRACE if !CPU_ !! 86 select HAVE_DEBUG_KMEMLEAK
93 select HAVE_KRETPROBES if !CPU_CK610 !! 87 select IOMMU_HELPER
94 select HAVE_PAGE_SIZE_4KB !! 88 select SPARSE_IRQ
>> 89 select RTC_DRV_CMOS
>> 90 select RTC_DRV_BQ4802
>> 91 select RTC_DRV_SUN4V
>> 92 select RTC_DRV_STARFIRE
95 select HAVE_PERF_EVENTS 93 select HAVE_PERF_EVENTS
96 select HAVE_PERF_REGS !! 94 select PERF_USE_VMALLOC
97 select HAVE_PERF_USER_STACK_DUMP !! 95 select ARCH_HAVE_NMI_SAFE_CMPXCHG
98 select HAVE_DMA_CONTIGUOUS !! 96 select HAVE_C_RECORDMCOUNT
>> 97 select HAVE_ARCH_AUDITSYSCALL
>> 98 select ARCH_SUPPORTS_ATOMIC_RMW
>> 99 select ARCH_SUPPORTS_DEBUG_PAGEALLOC
>> 100 select HAVE_NMI
99 select HAVE_REGS_AND_STACK_ACCESS_API 101 select HAVE_REGS_AND_STACK_ACCESS_API
100 select HAVE_STACKPROTECTOR !! 102 select ARCH_USE_QUEUED_RWLOCKS
101 select HAVE_SYSCALL_TRACEPOINTS !! 103 select ARCH_USE_QUEUED_SPINLOCKS
102 select HOTPLUG_CORE_SYNC_DEAD if HOTPL !! 104 select GENERIC_TIME_VSYSCALL
103 select LOCK_MM_AND_FIND_VMA !! 105 select ARCH_CLOCKSOURCE_DATA
104 select MAY_HAVE_SPARSE_IRQ !! 106 select ARCH_HAS_PTE_SPECIAL
105 select MODULES_USE_ELF_RELA if MODULES !! 107 select PCI_DOMAINS if PCI
106 select OF !! 108 select ARCH_HAS_GIGANTIC_PAGE
107 select OF_EARLY_FLATTREE !! 109 select HAVE_SOFTIRQ_ON_OWN_STACK
108 select PERF_USE_VMALLOC if CPU_CK610 !! 110 select HAVE_SETUP_PER_CPU_AREA
109 select RTC_LIB !! 111 select NEED_PER_CPU_EMBED_FIRST_CHUNK
110 select TIMER_OF !! 112 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 <<
117 113
118 config LOCKDEP_SUPPORT !! 114 config ARCH_PROC_KCORE_TEXT
119 def_bool y 115 def_bool y
120 116
121 config ARCH_SUPPORTS_UPROBES !! 117 config CPU_BIG_ENDIAN
122 def_bool y if !CPU_CK610 !! 118 def_bool y
123 119
124 config CPU_HAS_CACHEV2 !! 120 config STACKTRACE_SUPPORT
125 bool 121 bool
>> 122 default y if SPARC64
126 123
127 config CPU_HAS_FPUV2 !! 124 config LOCKDEP_SUPPORT
128 bool 125 bool
>> 126 default y if SPARC64
>> 127
>> 128 config ARCH_HIBERNATION_POSSIBLE
>> 129 def_bool y if SPARC64
129 130
130 config CPU_HAS_HILO !! 131 config AUDIT_ARCH
131 bool 132 bool
>> 133 default y
132 134
133 config CPU_HAS_TLBI !! 135 config MMU
134 bool 136 bool
>> 137 default y
135 138
136 config CPU_HAS_LDSTEX !! 139 config HIGHMEM
137 bool 140 bool
>> 141 default y if SPARC32
>> 142 select KMAP_LOCAL
>> 143
>> 144 config PGTABLE_LEVELS
>> 145 default 4 if 64BIT
>> 146 default 3
>> 147
>> 148 config ARCH_SUPPORTS_UPROBES
>> 149 def_bool y if SPARC64
>> 150
>> 151 menu "Processor type and features"
>> 152
>> 153 config SMP
>> 154 bool "Symmetric multi-processing support"
138 help 155 help
139 For SMP, CPU needs "ldex&stex" instr !! 156 This enables support for systems with more than one CPU. If you have
>> 157 a system with only one CPU, say N. If you have a system with more
>> 158 than one CPU, say Y.
>> 159
>> 160 If you say N here, the kernel will run on uni- and multiprocessor
>> 161 machines, but will use only one CPU of a multiprocessor machine. If
>> 162 you say Y here, the kernel will run on many, but not all,
>> 163 uniprocessor machines. On a uniprocessor machine, the kernel
>> 164 will run faster if you say N here.
>> 165
>> 166 People using multiprocessor machines who say Y here should also say
>> 167 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
>> 168 Management" code will be disabled if you say Y here.
>> 169
>> 170 See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO
>> 171 available at <https://www.tldp.org/docs.html#howto>.
>> 172
>> 173 If you don't know what to do here, say N.
>> 174
>> 175 config NR_CPUS
>> 176 int "Maximum number of CPUs"
>> 177 depends on SMP
>> 178 range 2 32 if SPARC32
>> 179 range 2 4096 if SPARC64
>> 180 default 32 if SPARC32
>> 181 default 4096 if SPARC64
>> 182
>> 183 source "kernel/Kconfig.hz"
140 184
141 config CPU_NEED_TLBSYNC !! 185 config GENERIC_HWEIGHT
>> 186 bool
>> 187 default y
>> 188
>> 189 config GENERIC_CALIBRATE_DELAY
142 bool 190 bool
>> 191 default y
143 192
144 config CPU_NEED_SOFTALIGN !! 193 config ARCH_MAY_HAVE_PC_FDC
145 bool 194 bool
>> 195 default y
146 196
147 config CPU_NO_USER_BKPT !! 197 config EMULATED_CMPXCHG
148 bool 198 bool
>> 199 default y if SPARC32
149 help 200 help
150 For abiv2 we couldn't use "trap 1" a !! 201 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
151 abiv2 is 16/32bit instruction set an !! 202 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 <<
155 203
156 config GENERIC_CALIBRATE_DELAY !! 204 # Makefile helpers
157 def_bool y !! 205 config SPARC32_SMP
>> 206 bool
>> 207 default y
>> 208 depends on SPARC32 && SMP
158 209
159 config GENERIC_CSUM !! 210 config SPARC64_SMP
160 def_bool y !! 211 bool
>> 212 default y
>> 213 depends on SPARC64 && SMP
161 214
162 config GENERIC_HWEIGHT !! 215 config EARLYFB
163 def_bool y !! 216 bool "Support for early boot text console"
>> 217 default y
>> 218 depends on SPARC64
>> 219 select FONT_SUN8x16
>> 220 select FONT_SUPPORT
>> 221 help
>> 222 Say Y here to enable a faster early framebuffer boot console.
164 223
165 config MMU !! 224 config HOTPLUG_CPU
166 def_bool y !! 225 bool "Support for hot-pluggable CPUs"
>> 226 depends on SPARC64 && SMP
>> 227 help
>> 228 Say Y here to experiment with turning CPUs off and on. CPUs
>> 229 can be controlled through /sys/devices/system/cpu/cpu#.
>> 230 Say N if you want to disable CPU hotplug.
167 231
168 config STACKTRACE_SUPPORT !! 232 if SPARC64
169 def_bool y !! 233 source "drivers/cpufreq/Kconfig"
>> 234 endif
170 235
171 config TIME_LOW_RES !! 236 config US3_MC
172 def_bool y !! 237 tristate "UltraSPARC-III Memory Controller driver"
>> 238 depends on SPARC64
>> 239 default y
>> 240 help
>> 241 This adds a driver for the UltraSPARC-III memory controller.
>> 242 Loading this driver allows exact mnemonic strings to be
>> 243 printed in the event of a memory error, so that the faulty DIMM
>> 244 on the motherboard can be matched to the error.
173 245
174 config CPU_ASID_BITS !! 246 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 <<
192 247
193 menu "Processor type and features" !! 248 # Global things across all Sun machines.
>> 249 config GENERIC_LOCKBREAK
>> 250 bool
>> 251 default y
>> 252 depends on SPARC64 && SMP && PREEMPTION
>> 253
>> 254 config NUMA
>> 255 bool "NUMA support"
>> 256 depends on SPARC64 && SMP
>> 257
>> 258 config NODES_SHIFT
>> 259 int "Maximum NUMA Nodes (as a power of 2)"
>> 260 range 4 5 if SPARC64
>> 261 default "5"
>> 262 depends on NUMA
>> 263 help
>> 264 Specify the maximum number of NUMA Nodes available on the target
>> 265 system. Increases memory reserved to accommodate various tables.
>> 266
>> 267 config ARCH_SPARSEMEM_ENABLE
>> 268 def_bool y if SPARC64
>> 269 select SPARSEMEM_VMEMMAP_ENABLE
>> 270
>> 271 config ARCH_SPARSEMEM_DEFAULT
>> 272 def_bool y if SPARC64
>> 273
>> 274 config ARCH_FORCE_MAX_ORDER
>> 275 int "Order of maximal physically contiguous allocations"
>> 276 default "12"
>> 277 help
>> 278 The kernel page allocator limits the size of maximal physically
>> 279 contiguous allocations. The limit is called MAX_PAGE_ORDER and it
>> 280 defines the maximal power of two of number of pages that can be
>> 281 allocated as a single contiguous block. This option allows
>> 282 overriding the default setting when ability to allocate very
>> 283 large blocks of physically contiguous memory is required.
194 284
195 choice !! 285 Don't change if unsure.
196 prompt "CPU MODEL" !! 286
197 default CPU_CK807 !! 287 if SPARC64 || COMPILE_TEST
198 !! 288 source "kernel/power/Kconfig"
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 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
348 441
349 config HAVE_EFFICIENT_UNALIGNED_STRING_OPS !! 442 config SPARC_GRPCI1
350 bool "Enable EFFICIENT_UNALIGNED_STRIN !! 443 bool "GRPCI Host Bridge Support"
351 depends on CPU_CK807 || CPU_CK810 || C !! 444 depends on LEON_PCI
>> 445 default y
352 help 446 help
353 Say Y here to enable EFFICIENT_UNALI !! 447 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
354 deal with unaligned access by hardwa !! 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.
>> 459
>> 460 config SUN_OPENPROMFS
>> 461 tristate "Openprom tree appears in /proc/openprom"
>> 462 help
>> 463 If you say Y, the OpenPROM device tree will be available as a
>> 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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