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 GENERIC_STRNCPY_FROM_USER
>> 41 select GENERIC_STRNLEN_USER
>> 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 SET_FS
>> 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 select ZONE_DMA
64 select GENERIC_IRQ_MULTI_HANDLER !! 62
65 select GENERIC_SCHED_CLOCK !! 63 config SPARC64
66 select GENERIC_SMP_IDLE_THREAD !! 64 def_bool 64BIT
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 HAVE_ARCH_TRANSPARENT_HUGEPAGE
>> 71 select HAVE_DYNAMIC_FTRACE
87 select HAVE_FTRACE_MCOUNT_RECORD 72 select HAVE_FTRACE_MCOUNT_RECORD
88 select HAVE_KERNEL_GZIP !! 73 select HAVE_SYSCALL_TRACEPOINTS
89 select HAVE_KERNEL_LZO !! 74 select HAVE_CONTEXT_TRACKING
90 select HAVE_KERNEL_LZMA !! 75 select HAVE_TIF_NOHZ
91 select HAVE_KPROBES if !CPU_CK610 !! 76 select HAVE_DEBUG_KMEMLEAK
92 select HAVE_KPROBES_ON_FTRACE if !CPU_ !! 77 select IOMMU_HELPER
93 select HAVE_KRETPROBES if !CPU_CK610 !! 78 select SPARSE_IRQ
94 select HAVE_PAGE_SIZE_4KB !! 79 select RTC_DRV_CMOS
>> 80 select RTC_DRV_BQ4802
>> 81 select RTC_DRV_SUN4V
>> 82 select RTC_DRV_STARFIRE
95 select HAVE_PERF_EVENTS 83 select HAVE_PERF_EVENTS
96 select HAVE_PERF_REGS !! 84 select PERF_USE_VMALLOC
97 select HAVE_PERF_USER_STACK_DUMP !! 85 select ARCH_HAVE_NMI_SAFE_CMPXCHG
98 select HAVE_DMA_CONTIGUOUS !! 86 select HAVE_C_RECORDMCOUNT
>> 87 select HAVE_ARCH_AUDITSYSCALL
>> 88 select ARCH_SUPPORTS_ATOMIC_RMW
>> 89 select ARCH_SUPPORTS_DEBUG_PAGEALLOC
>> 90 select HAVE_NMI
99 select HAVE_REGS_AND_STACK_ACCESS_API 91 select HAVE_REGS_AND_STACK_ACCESS_API
100 select HAVE_STACKPROTECTOR !! 92 select ARCH_USE_QUEUED_RWLOCKS
101 select HAVE_SYSCALL_TRACEPOINTS !! 93 select ARCH_USE_QUEUED_SPINLOCKS
102 select HOTPLUG_CORE_SYNC_DEAD if HOTPL !! 94 select GENERIC_TIME_VSYSCALL
103 select LOCK_MM_AND_FIND_VMA !! 95 select ARCH_CLOCKSOURCE_DATA
104 select MAY_HAVE_SPARSE_IRQ !! 96 select ARCH_HAS_PTE_SPECIAL
105 select MODULES_USE_ELF_RELA if MODULES !! 97 select PCI_DOMAINS if PCI
106 select OF !! 98 select ARCH_HAS_GIGANTIC_PAGE
107 select OF_EARLY_FLATTREE !! 99 select HAVE_SOFTIRQ_ON_OWN_STACK
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 <<
117 100
118 config LOCKDEP_SUPPORT !! 101 config ARCH_PROC_KCORE_TEXT
119 def_bool y 102 def_bool y
120 103
121 config ARCH_SUPPORTS_UPROBES !! 104 config CPU_BIG_ENDIAN
122 def_bool y if !CPU_CK610 !! 105 def_bool y
>> 106
>> 107 config ARCH_ATU
>> 108 bool
>> 109 default y if SPARC64
123 110
124 config CPU_HAS_CACHEV2 !! 111 config STACKTRACE_SUPPORT
125 bool 112 bool
>> 113 default y if SPARC64
126 114
127 config CPU_HAS_FPUV2 !! 115 config LOCKDEP_SUPPORT
128 bool 116 bool
>> 117 default y if SPARC64
129 118
130 config CPU_HAS_HILO !! 119 config ARCH_HIBERNATION_POSSIBLE
>> 120 def_bool y if SPARC64
>> 121
>> 122 config AUDIT_ARCH
131 bool 123 bool
>> 124 default y
>> 125
>> 126 config HAVE_SETUP_PER_CPU_AREA
>> 127 def_bool y if SPARC64
132 128
133 config CPU_HAS_TLBI !! 129 config NEED_PER_CPU_EMBED_FIRST_CHUNK
>> 130 def_bool y if SPARC64
>> 131
>> 132 config NEED_PER_CPU_PAGE_FIRST_CHUNK
>> 133 def_bool y if SPARC64
>> 134
>> 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 GENERIC_ISA_DMA
>> 145 bool
>> 146 default y if SPARC32
>> 147
>> 148 config PGTABLE_LEVELS
>> 149 default 4 if 64BIT
>> 150 default 3
>> 151
>> 152 config ARCH_SUPPORTS_UPROBES
>> 153 def_bool y if SPARC64
>> 154
>> 155 menu "Processor type and features"
>> 156
>> 157 config SMP
>> 158 bool "Symmetric multi-processing support"
138 help 159 help
139 For SMP, CPU needs "ldex&stex" instr !! 160 This enables support for systems with more than one CPU. If you have
>> 161 a system with only one CPU, say N. If you have a system with more
>> 162 than one CPU, say Y.
>> 163
>> 164 If you say N here, the kernel will run on uni- and multiprocessor
>> 165 machines, but will use only one CPU of a multiprocessor machine. If
>> 166 you say Y here, the kernel will run on many, but not all,
>> 167 uniprocessor machines. On a uniprocessor machine, the kernel
>> 168 will run faster if you say N here.
>> 169
>> 170 People using multiprocessor machines who say Y here should also say
>> 171 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
>> 172 Management" code will be disabled if you say Y here.
140 173
141 config CPU_NEED_TLBSYNC !! 174 See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO
>> 175 available at <https://www.tldp.org/docs.html#howto>.
>> 176
>> 177 If you don't know what to do here, say N.
>> 178
>> 179 config NR_CPUS
>> 180 int "Maximum number of CPUs"
>> 181 depends on SMP
>> 182 range 2 32 if SPARC32
>> 183 range 2 4096 if SPARC64
>> 184 default 32 if SPARC32
>> 185 default 4096 if SPARC64
>> 186
>> 187 source "kernel/Kconfig.hz"
>> 188
>> 189 config GENERIC_HWEIGHT
142 bool 190 bool
>> 191 default y
143 192
144 config CPU_NEED_SOFTALIGN !! 193 config GENERIC_CALIBRATE_DELAY
145 bool 194 bool
>> 195 default y
146 196
147 config CPU_NO_USER_BKPT !! 197 config ARCH_MAY_HAVE_PC_FDC
148 bool 198 bool
>> 199 default y
>> 200
>> 201 config EMULATED_CMPXCHG
>> 202 bool
>> 203 default y if SPARC32
149 help 204 help
150 For abiv2 we couldn't use "trap 1" a !! 205 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
151 abiv2 is 16/32bit instruction set an !! 206 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 <<
155 207
156 config GENERIC_CALIBRATE_DELAY !! 208 # Makefile helpers
157 def_bool y !! 209 config SPARC32_SMP
>> 210 bool
>> 211 default y
>> 212 depends on SPARC32 && SMP
158 213
159 config GENERIC_CSUM !! 214 config SPARC64_SMP
160 def_bool y !! 215 bool
>> 216 default y
>> 217 depends on SPARC64 && SMP
161 218
162 config GENERIC_HWEIGHT !! 219 config EARLYFB
163 def_bool y !! 220 bool "Support for early boot text console"
>> 221 default y
>> 222 depends on SPARC64
>> 223 help
>> 224 Say Y here to enable a faster early framebuffer boot console.
164 225
165 config MMU !! 226 config HOTPLUG_CPU
166 def_bool y !! 227 bool "Support for hot-pluggable CPUs"
>> 228 depends on SPARC64 && SMP
>> 229 help
>> 230 Say Y here to experiment with turning CPUs off and on. CPUs
>> 231 can be controlled through /sys/devices/system/cpu/cpu#.
>> 232 Say N if you want to disable CPU hotplug.
167 233
168 config STACKTRACE_SUPPORT !! 234 if SPARC64
169 def_bool y !! 235 source "drivers/cpufreq/Kconfig"
>> 236 endif
170 237
171 config TIME_LOW_RES !! 238 config US3_MC
172 def_bool y !! 239 tristate "UltraSPARC-III Memory Controller driver"
>> 240 depends on SPARC64
>> 241 default y
>> 242 help
>> 243 This adds a driver for the UltraSPARC-III memory controller.
>> 244 Loading this driver allows exact mnemonic strings to be
>> 245 printed in the event of a memory error, so that the faulty DIMM
>> 246 on the motherboard can be matched to the error.
173 247
174 config CPU_ASID_BITS !! 248 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 <<
192 249
193 menu "Processor type and features" !! 250 # Global things across all Sun machines.
>> 251 config GENERIC_LOCKBREAK
>> 252 bool
>> 253 default y
>> 254 depends on SPARC64 && SMP && PREEMPTION
>> 255
>> 256 config NUMA
>> 257 bool "NUMA support"
>> 258 depends on SPARC64 && SMP
>> 259
>> 260 config NODES_SHIFT
>> 261 int "Maximum NUMA Nodes (as a power of 2)"
>> 262 range 4 5 if SPARC64
>> 263 default "5"
>> 264 depends on NUMA
>> 265 help
>> 266 Specify the maximum number of NUMA Nodes available on the target
>> 267 system. Increases memory reserved to accommodate various tables.
194 268
195 choice !! 269 config ARCH_SPARSEMEM_ENABLE
196 prompt "CPU MODEL" !! 270 def_bool y if SPARC64
197 default CPU_CK807 !! 271 select SPARSEMEM_VMEMMAP_ENABLE
198 !! 272
199 config CPU_CK610 !! 273 config ARCH_SPARSEMEM_DEFAULT
200 bool "CSKY CPU ck610" !! 274 def_bool y if SPARC64
201 select CPU_NEED_TLBSYNC !! 275
202 select CPU_NEED_SOFTALIGN !! 276 config FORCE_MAX_ZONEORDER
203 select CPU_NO_USER_BKPT !! 277 int "Maximum zone order"
204 !! 278 default "13"
205 config CPU_CK810 !! 279 help
206 bool "CSKY CPU ck810" !! 280 The kernel memory allocator divides physically contiguous memory
207 select CPU_HAS_HILO !! 281 blocks into "zones", where each zone is a power of two number of
208 select CPU_NEED_TLBSYNC !! 282 pages. This option selects the largest power of two that the kernel
209 !! 283 keeps in the memory allocator. If you need to allocate very large
210 config CPU_CK807 !! 284 blocks of physically contiguous memory, then you may need to
211 bool "CSKY CPU ck807" !! 285 increase this value.
212 select CPU_HAS_HILO !! 286
213 !! 287 This config option is actually maximum order plus one. For example,
214 config CPU_CK860 !! 288 a value of 13 means that the largest free memory block is 2^12 pages.
215 bool "CSKY CPU ck860" !! 289
216 select CPU_HAS_TLBI !! 290 if SPARC64
217 select CPU_HAS_CACHEV2 !! 291 source "kernel/power/Kconfig"
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 292 endif
301 293
302 config CPU_HAS_VDSP !! 294 config SCHED_SMT
303 bool "CPU has VDSP coprocessor" !! 295 bool "SMT (Hyperthreading) scheduler support"
304 depends on CPU_HAS_FPU && CPU_HAS_FPUV !! 296 depends on SPARC64 && SMP
305 !! 297 default y
306 config CPU_HAS_FPU !! 298 help
307 bool "CPU has FPU coprocessor" !! 299 SMT scheduler support improves the CPU scheduler's decision making
308 depends on CPU_CK807 || CPU_CK810 || C !! 300 when dealing with SPARC cpus at a cost of slightly increased overhead
309 !! 301 in some places. If unsure say N here.
310 config CPU_HAS_ICACHE_INS !! 302
311 bool "CPU has Icache invalidate instru !! 303 config SCHED_MC
312 depends on CPU_HAS_CACHEV2 !! 304 bool "Multi-core scheduler support"
313 !! 305 depends on SPARC64 && SMP
314 config CPU_HAS_TEE !! 306 default y
315 bool "CPU has Trusted Execution Enviro !! 307 help
316 depends on CPU_CK810 !! 308 Multi-core scheduler support improves the CPU scheduler's decision
>> 309 making when dealing with multi-core CPU chips at a cost of slightly
>> 310 increased overhead in some places. If unsure say N here.
>> 311
>> 312 config CMDLINE_BOOL
>> 313 bool "Default bootloader kernel arguments"
>> 314 depends on SPARC64
>> 315
>> 316 config CMDLINE
>> 317 string "Initial kernel command string"
>> 318 depends on CMDLINE_BOOL
>> 319 default "console=ttyS0,9600 root=/dev/sda1"
>> 320 help
>> 321 Say Y here if you want to be able to pass default arguments to
>> 322 the kernel. This will be overridden by the bootloader, if you
>> 323 use one (such as SILO). This is most useful if you want to boot
>> 324 a kernel from TFTP, and want default options to be available
>> 325 with having them passed on the command line.
317 326
318 config SMP !! 327 NOTE: This option WILL override the PROM bootargs setting!
319 bool "Symmetric Multi-Processing (SMP) <<
320 depends on CPU_CK860 <<
321 default n <<
322 328
323 config NR_CPUS !! 329 config SUN_PM
324 int "Maximum number of CPUs (2-32)" !! 330 bool
325 range 2 32 !! 331 default y if SPARC32
326 depends on SMP !! 332 help
327 default "4" !! 333 Enable power management and CPU standby features on supported
>> 334 SPARC platforms.
328 335
329 config HIGHMEM !! 336 config SPARC_LED
330 bool "High Memory Support" !! 337 tristate "Sun4m LED driver"
331 depends on !CPU_CK610 !! 338 depends on SPARC32
332 select KMAP_LOCAL !! 339 help
>> 340 This driver toggles the front-panel LED on sun4m systems
>> 341 in a user-specifiable manner. Its state can be probed
>> 342 by reading /proc/led and its blinking mode can be changed
>> 343 via writes to /proc/led
>> 344
>> 345 config SERIAL_CONSOLE
>> 346 bool
>> 347 depends on SPARC32
333 default y 348 default y
>> 349 help
>> 350 If you say Y here, it will be possible to use a serial port as the
>> 351 system console (the system console is the device which receives all
>> 352 kernel messages and warnings and which allows logins in single user
>> 353 mode). This could be useful if some terminal or printer is connected
>> 354 to that serial port.
>> 355
>> 356 Even if you say Y here, the currently visible virtual console
>> 357 (/dev/tty0) will still be used as the system console by default, but
>> 358 you can alter that using a kernel command line option such as
>> 359 "console=ttyS1". (Try "man bootparam" or see the documentation of
>> 360 your boot loader (silo) about how to pass options to the kernel at
>> 361 boot time.)
>> 362
>> 363 If you don't have a graphics card installed and you say Y here, the
>> 364 kernel will automatically use the first serial line, /dev/ttyS0, as
>> 365 system console.
>> 366
>> 367 If unsure, say N.
>> 368
>> 369 config SPARC_LEON
>> 370 bool "Sparc Leon processor family"
>> 371 depends on SPARC32
>> 372 select USB_EHCI_BIG_ENDIAN_MMIO
>> 373 select USB_EHCI_BIG_ENDIAN_DESC
>> 374 select USB_UHCI_BIG_ENDIAN_MMIO
>> 375 select USB_UHCI_BIG_ENDIAN_DESC
>> 376 help
>> 377 If you say Y here if you are running on a SPARC-LEON processor.
>> 378 The LEON processor is a synthesizable VHDL model of the
>> 379 SPARC-v8 standard. LEON is part of the GRLIB collection of
>> 380 IP cores that are distributed under GPL. GRLIB can be downloaded
>> 381 from www.gaisler.com. You can download a sparc-linux cross-compilation
>> 382 toolchain at www.gaisler.com.
>> 383
>> 384 if SPARC_LEON
>> 385 menu "U-Boot options"
>> 386
>> 387 config UBOOT_LOAD_ADDR
>> 388 hex "uImage Load Address"
>> 389 default 0x40004000
>> 390 help
>> 391 U-Boot kernel load address, the address in physical address space
>> 392 where u-boot will place the Linux kernel before booting it.
>> 393 This address is normally the base address of main memory + 0x4000.
>> 394
>> 395 config UBOOT_FLASH_ADDR
>> 396 hex "uImage.o Load Address"
>> 397 default 0x00080000
>> 398 help
>> 399 Optional setting only affecting the uImage.o ELF-image used to
>> 400 download the uImage file to the target using a ELF-loader other than
>> 401 U-Boot. It may for example be used to download an uImage to FLASH with
>> 402 the GRMON utility before even starting u-boot.
>> 403
>> 404 config UBOOT_ENTRY_ADDR
>> 405 hex "uImage Entry Address"
>> 406 default 0xf0004000
>> 407 help
>> 408 Do not change this unless you know what you're doing. This is
>> 409 hardcoded by the SPARC32 and LEON port.
334 410
335 config DRAM_BASE !! 411 This is the virtual address u-boot jumps to when booting the Linux
336 hex "DRAM start addr (the same with me !! 412 Kernel.
337 default 0x0 <<
338 413
339 config HOTPLUG_CPU !! 414 endmenu
340 bool "Support for hot-pluggable CPUs" !! 415 endif
341 select GENERIC_IRQ_MIGRATION !! 416
342 depends on SMP !! 417 endmenu
>> 418
>> 419 menu "Bus options (PCI etc.)"
>> 420 config SBUS
>> 421 bool
>> 422 default y
>> 423
>> 424 config SBUSCHAR
>> 425 bool
>> 426 default y
>> 427
>> 428 config SUN_LDOMS
>> 429 bool "Sun Logical Domains support"
>> 430 depends on SPARC64
343 help 431 help
344 Say Y here to allow turning CPUs off !! 432 Say Y here is you want to support virtual devices via
345 controlled through /sys/devices/syst !! 433 Logical Domains.
346 434
347 Say N if you want to disable CPU hot !! 435 config PCIC_PCI
>> 436 bool
>> 437 depends on PCI && SPARC32 && !SPARC_LEON
>> 438 default y
348 439
349 config HAVE_EFFICIENT_UNALIGNED_STRING_OPS !! 440 config LEON_PCI
350 bool "Enable EFFICIENT_UNALIGNED_STRIN !! 441 bool
351 depends on CPU_CK807 || CPU_CK810 || C !! 442 depends on PCI && SPARC_LEON
>> 443 default y
>> 444
>> 445 config SPARC_GRPCI1
>> 446 bool "GRPCI Host Bridge Support"
>> 447 depends on LEON_PCI
>> 448 default y
>> 449 help
>> 450 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
>> 451 PCI host controller is typically found in GRLIB SPARC32/LEON
>> 452 systems. The driver has one property (all_pci_errors) controlled
>> 453 from the bootloader that makes the GRPCI to generate interrupts
>> 454 on detected PCI Parity and System errors.
>> 455
>> 456 config SPARC_GRPCI2
>> 457 bool "GRPCI2 Host Bridge Support"
>> 458 depends on LEON_PCI
>> 459 default y
>> 460 help
>> 461 Say Y here to include the GRPCI2 Host Bridge Driver.
>> 462
>> 463 config SUN_OPENPROMFS
>> 464 tristate "Openprom tree appears in /proc/openprom"
352 help 465 help
353 Say Y here to enable EFFICIENT_UNALI !! 466 If you say Y, the OpenPROM device tree will be available as a
354 deal with unaligned access by hardwa !! 467 virtual file system, which you can mount to /proc/openprom by "mount
>> 468 -t openpromfs none /proc/openprom".
>> 469
>> 470 To compile the /proc/openprom support as a module, choose M here: the
>> 471 module will be called openpromfs.
>> 472
>> 473 Only choose N if you know in advance that you will not need to modify
>> 474 OpenPROM settings on the running system.
>> 475
>> 476 # Makefile helpers
>> 477 config SPARC64_PCI
>> 478 bool
>> 479 default y
>> 480 depends on SPARC64 && PCI
>> 481
>> 482 config SPARC64_PCI_MSI
>> 483 bool
>> 484 default y
>> 485 depends on SPARC64_PCI && PCI_MSI
355 486
356 endmenu 487 endmenu
357 488
358 source "arch/csky/Kconfig.platforms" !! 489 config COMPAT
>> 490 bool
>> 491 depends on SPARC64
>> 492 default y
>> 493 select HAVE_UID16
>> 494 select ARCH_WANT_OLD_COMPAT_IPC
>> 495 select COMPAT_OLD_SIGACTION
>> 496
>> 497 config SYSVIPC_COMPAT
>> 498 bool
>> 499 depends on COMPAT && SYSVIPC
>> 500 default y
359 501
360 source "kernel/Kconfig.hz" !! 502 source "drivers/sbus/char/Kconfig"
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